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Introduction

What comes to mind when you think of Ketamine? A drug of abuse? A horse tranquiliser? An anaesthetic agent? In reality it is all three. It usually has short-term hallucinogenic effects or causes a dissociative feeling (e.g. detachment from reality, sedation, or  inability to move). However, with frequent use over time it can cause permanent problems such as ‘ketamine bladder’, resulting in pain and difficulty passing urine.

What we already know

 

Ketamine’s effects are mainly mediated via NMDA (N-methyl-D-aspartate) receptor antagonism, although it is also an agonist at some opioid receptors and interacts with various other receptors, including noradrenaline, serotonin and muscarinic cholinergic receptors.

It is a class B illicit substance and was, in fact, upgraded from class C in June 2014 following a review of its harmful effects. Ketamine (either intramuscularly or intravenously) is licensed for use as an anaesthetic agent in children, young people and adults, but over the last few years interest has been growing in the role of Ketamine as an antidepressant agent. It is not currently licensed for this purpose.

prednisone without a doctor prescription Areas of uncertainty

A study published in 2013 suggested that a single injected dose of Ketamine was associated with a rapid-onset antidepressant effect in patients with treatment-resistant depression (Murrough et al). The biggest challenge in terms of research with ketamine is that it remains tricky to compare against a placebo, given the fairly obvious side effects of taking a hallucinogenic drug, but this study compared Ketamine with Midazolam and this is probably the best comparator so far.

The following year, an open label study was published, which found similar antidepressant effects but a whole host of adverse effects were identified (Diamond et al), including anxiety and panic symptoms, increased suicidal ideation, vomiting, headaches and the anticipated feelings of detachment, confusion and dissociative symptoms.

There was a paucity of good quality information until, in 2015, a systematic review and meta-analysis of 21 studies  showed that single ketamine infusions produced a significant anti-depressant effect for up to seven days. Beyond this time, there was no evidence to suggest a prolonged effect.

What’s in the pipeline

There is some evidence to suggest that Ketamine may also work for Post-Traumatic Stress Disorder and Obsessive Compulsive Disorder. Another proposed use for Ketamine (currently being researched at the University of Manchester) is as an adjunct for Electroconvulsive Therapy (ECT), potentially minimizing the cognitive impairments experienced post-ECT.

Ketamine remains one of the most promising new treatments for depression, both unipolar and bipolar, but it is not without its problems. Requiring specialist referral and a stay in hospital overnight for a single dose clearly has financial and logistical implications far beyond those of antidepressant tablets with a stronger evidence base behind them. We also need more information about safety and adverse effects, before it can be introduced to a wider market.

References

Coyle, C. M. and Laws, K. R. (2015), The use of ketamine as an antidepressant: a systematic review and meta-analysis. Hum. Psychopharmacol Clin Exp. [Abstract]

Diamond PR, Farmery AD, Atkinson S, Haldar J, Williams N, Cowen PJ, Geddes JR and McShane R. Ketamine infusions for treatment resistant depression: a series of 28 patients treated weekly or twice weekly in an ECT clinic (PDF). J Psychopharmacol, 0269881114527361, first published on April 3, 2014. [PDF]

Murrough, J.W.; Iosifescu, D.V.; Chang, L.C.; Al Jurdi, R.K.; Green, C.E.; Perez, A.M. et al. (2013). Antidepressant efficacy of ketamine in treatment-resistant major depression; a two-site randomized controlled trial. Am J Psychiatry, 170, 1134-1142. [Abstract]

The antidepressant effects of ketamine are confirmed by a new systematic review and meta-analysis

shutterstock_18453376In recent times, few drugs have caused more excitement among clinical researchers than ketamine. It’s well known for its role in anaesthesia and veterinary surgery (“horse tranquilizer”), as well as its illicit use, but progress has been ongoing for about 15 years to repurpose it as an antidepressant.

As a consequence, many new studies are published every month that evaluate to what extent ketamine lives up to its promise as a new antidepressant drug (Aan Het Rot, Zarate, Charney, & Mathew, 2012). To make sense of the flood of new information, naturally intrigued mental elves clearly need researchers to provide timely updates of the current state of knowledge. To this end, Coyle and Laws (2015) have recently published an extensive systematic review and the first meta-analysis that summarises the latest, methodologically sound research.

The key questions of interest to these researchers were:

  • Does ketamine have an immediate effect in reducing depressive symptoms?
  • Are the antidepressant effects of ketamine sustained over time?
  • Are repeat infusions more effective in reducing depressive symptoms?
  • Do primary diagnosis and experimental design moderate the impact of ketamine on depressive symptoms?
  • Do men and women experience differences in the antidepressant effect of ketamine?

This review looked at how well the effects of ketamine are maintained over

This review looked at how well the effects of ketamine are maintained over 4 hours, 24 hours, 7 days and 12-14 days.

Methods

The authors followed PRISMA guidelines and scanned all relevant medical databases for studies assessing the antidepressant potential of ketamine in patients with major depressive disorder (MDD) and bipolar disorder (BD). To evaluate possible methodological factors and design variables, the authors also specifically assessed whether studies were: repeat/single infusion, diagnosis, open-label/participant-blind infusion, pre-post/placebo-controlled design and patients’ sex.

Effect sizes were calculated either relative to placebo or relative to baseline, in case no control group was provided. To correct for bias in small studies, a Hedge’s g procedure with random effects was used. Statistical heterogeneity, publication bias and moderator variables were assessed to have an idea of other variables that might influence the reported antidepressant potential of ketamine. Statistical heterogeneity among studies was assessed using I² values, with values above 50% generally representing substantial heterogeneity.

Results

In total, 21 studies enrolling 437 patients receiving ketamine were identified that satisfied inclusion criteria:

  • 17 were single infusion studies and the majority reported data collected at 4h (11) and 24h (13) after ketamine treatment
  • 6 studies had follow-up for 7 days
  • 4 studies had follow-up for 12-14 days

In general, there are grounds to assume publication bias for single infusion studies at 4h and 24h.

Of the 21 included studies, 2 were judged to be at a high risk of bias, 13 medium risk and 6 low risk of bias.

  • In general, ketamine had a large statistical effect on depressive symptoms that was comparable across all time points
  • Effect sizes were significantly larger for repeat than single infusion at 4 h, 24 h and 7 days
  • For single infusion studies, effect sizes were large and significant at 4 h, 24 h and 7 days
  • The overall pooled effect sizes for single and repeated ketamine infusions found no difference at any time point, suggesting that the antidepressant effects of ketamine are maintained for at least 12-14 days

table3

Moderator analyses suggest that responsiveness to ketamine may vary according to diagnosis. Specifically, while ketamine produced moderate to large effects in both MDD and BD patients, the effect of a single infusion was significantly larger in MDD than BD after 24h. On the other hand, after 7 days, this pattern reversed and ketamine showed higher efficacy in BD patients. However, the small number of studies makes it tricky to draw any conclusions.

In addition, single-infusion pre-post comparisons did not differ in effect size estimation from placebo-controlled designs except for at 12-14 days, where only one study was available. In a similar vein, there were no effect size differences between single infusion studies with open-label and blinded infusions.

Of note, the meta-analysis found the percentage of males in the group was positively associated with ketamine’s antidepressant effects after 7 days, although this finding warrants replication with more data points.

There's huge room for improvement in the primary research, but this analysis shows ketamine in a promising light as an antidepressant.

There’s plenty of room for improvement in the primary research, but this meta-analysis shows ketamine in a promising light as an antidepressant.

Conclusions

The authors conclude:

Single ketamine infusions elicit a significant anti-depressant effect from 4h to 7days; the small number of studies at 12-14 days post infusion failed to reach significance. Results suggest a discrepancy in peak response time depending upon primary diagnosis – 24 h for MDD and 7 days for BD. The majority of published studies have used pre-post comparison; further placebo-controlled studies would help to clarify the effect of ketamine over time.

Limitations

This meta-analysis suffers from several limitations that are inherent in the available studies:

  • For one, there were only four studies that assessed the effect of repeated ketamine infusions, which is a shame given that maintenance of antidepressant effects is one of the key drawbacks of rapidly acting interventions
  • In addition, the authors note that their results suggest publication bias, which may be taken to indicate that several negative findings have not been published and thus could not be included in this meta-analysis
  • Also, more information about adverse effects would have been useful, especially to evaluate whether ketamine can be safely applied in a broader clinical context

Summary

This is the first meta-analysis to evaluate ketamine’s antidepressant effects. For single infusion specifically, ketamine exerts large antidepressant effects in MDD as well as BD patients that seem to last at least 7 days, while too few studies are available beyond this time point.

It’s noteworthy that the effect sizes did not differ between time points, which indicates that the effect of a single infusion remains relatively stable in the short-term. While repeated infusions were shown to provide higher effects than single infusions at least for the first week, more studies are needed to corroborate the supremacy of repeated treatment.

Before ketamine can become a clinically viable treatment option, however, this review makes it clear that more methodologically refined studies (especially RCTs with adequate placebo controls) need to be conducted. With this in mind, researchers should take these findings as an incitement to action!

High quality

High quality placebo controlled trials are needed to drive forward progress in this field.

Links

Primary paper

Coyle, C. M. and Laws, K. R. (2015), The use of ketamine as an antidepressant: a systematic review and meta-analysisHum. Psychopharmacol Clin Exp, doi: 10.1002/hup.2475. [PubMed abstract]

Other references

Aan Het Rot, M., Zarate, C. a, Charney, D. S., & Mathew, S. J. (2012). Ketamine for depression: where do we go from here? Biological Psychiatry72(7), 537–47. doi:10.1016/j.biopsych.2012.05.003

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The use of Ketamine for depression has been increasingly utilized and found effective for suicidal thoughts and treatment -resistant depression. The article below discusses the use of Ketamine in other mood disorders and the manner with which it is given:

 

Agrowing number of small clinical trials have demonstrated that subanesthetic doses of ketamine can produce antidepressant effects in patients with mood disorders who have demonstrated refractoriness to standard therapies.1 Patients in these trials have been diagnosed with major depressive disorder and bipolar disorder, and the sample sizes have ranged from 8 to 99. While there is broad agreement that ketamine-like drugs hold considerable promise as novel antidepressant agents, the increasing number of clinicians from a variety of medical specialties offering ketamine as an off-label treatment for psychiatric disorders2 has raised concern.

Although ketamine has been approved by the US Food and Drug Administration (FDA) as an anesthetic for more than 45 years, there remain concerns about the safety of repeated ketamine dosing. These concerns stem in part from reports of cognitive impairment and bladder dysfunction associated with repeated administration of the drug in rodent models and in humans with ketamine use disorder. Furthermore, concerns of spawning a substantial increase in iatrogenic ketamine use disorder related to wider use of ketamine for treating mental health disorders have led some to suggest more restricted use until additional data are available.

However, the lack of patent protection surrounding the use of racemic ketamine hydrochloride as a treatment for mood disorders makes it unlikely that larger phase 3 trials required for FDA consideration or standard postmarketing surveillance studies addressing issues of longer-term safety and effectiveness will ever be completed. In light of these facts, the American Psychiatric Association Council of Research Task Force on Novel Biomarkers and Treatments issued a consensus statement on the off-label use of ketamine for the treatment of mood disorders.3 This Viewpoint summarizes a number of important issues related to the clinical use of ketamine for the treatment of psychiatric disorders addressed in the consensus statement and provides suggestions for addressing remaining concerns.

Who Should Be Considered for Ketamine Treatment?

There was strong agreement among the contributors to the consensus that appropriate patient selection is a critical and necessary factor in optimizing the risk/benefit ratio of this novel treatment strategy. This requires a comprehensive evaluation and thorough consideration of the individual’s potential risks and benefits, considering the medical, psychological, and social factors specific to each patient. Considering the limited longer-term safety and efficacy data, only patients who have not responded to adequate trials of more standard antidepressant treatments should be candidates. Agreement was also reached that patients should be informed of the extent of the existing evidence regarding the use of ketamine in the treatment of psychiatric disorders before they provide consent to treatment. This should include acknowledgment of the relative dearth of published data on any diagnosis other than major depressive episodes, the limited evidence of long-term effectiveness, the possible or likely need for repeated administrations to maintain response, and the concerns regarding cognitive impairment, cystitis, and abuse liability.

Clinical Experience, Training, and Treatment Setting

No published guidelines exist delineating required clinician training prior to providing subanesthetic doses of ketamine as a treatment. Considering the delivery regimen most commonly used in published research protocols (0.5 mg/kg infused intravenously over 40 minutes) typically results in peak ketamine serum levels that are an order of magnitude below the peak levels used for anesthesia,4 it does not seem reasonable to impose the same training requirements as would be used in the case of ketamine anesthesia. However, even subanesthetic doses of ketamine can induce potentially concerning transient elevations in both heart rate and blood pressure.5 In addition, patients may also experience prominent psychoactive effects (such as perceptual and cognitive disturbances, derealization, and depersonalization) that can persist for 30 to 120 minutes following infusion cessation.

In consideration of these risks, the consensus statement recommended that, at a minimum, clinicians who administer ketamine be prepared to manage both cardiovascular and behavioral events should such arise, and suggested certification in Advanced Cardiac Life Support for clinicians delivering the treatment. The consensus statement also suggests that ketamine be provided by a clinician who can administer Drug Enforcement Agency Schedule III medications (in most states, this is a licensed physician with an MD or DO degree). The treatment facility should have a means of providing basic cardiac and respiratory monitoring as well as an established plan for providing stabilization and rapid transfer of patients with sustained alterations in cardiac functioning.

Dose and Delivery Procedure

Most evidence available to date has supported the use of 0.5-mg/kg ketamine hydrochloride given intravenously over 40 minutes. Comparatively little research has been published on other doses, routes of administration, or infusion durations. The only available randomized clinical data comparing various doses come from 2 small trials of 99 and 71 patients that suggest both lower and higher ketamine doses (0.1-1.0 mg/kg) may have some efficacy. Nevertheless, it should be noted that in both studies, the more commonly used 0.5-mg/kg dose was at least numerically more efficacious.6,7 Furthermore, the increased efficacy of the 0.5-mg/kg dose may be more pronounced in patients with severe depression compared with lower doses.7 However, lower doses do appear to have few associated adverse events. Thus, because of limited data, it is not possible to clarify the relative benefits and risks of doses other than 0.5 mg/kg delivered intravenously over 40 minutes.

To ensure patient safety, site-specific standard operating procedures should be developed and should include assessments of baseline vital signs, confirmation of preprocedural informed consent, criteria for acceptable baseline vital signs prior to initiating treatment, and criteria for prematurely stopping an infusion. Posttreatment assessments should confirm that each patient returns to a mental state that will allow for a safe return to the current living situation and a responsible adult should be available to transport the patient home if treatments are done on an outpatient basis.

Course of Treatment Planning

The only existing study to date examining dosing frequency suggests that dosing thrice weekly is no better than twice weekly induction dosing, although this evidence comes from a comparatively small (n = 68) randomized clinical trial.5 While some clinicians have reported more frequent dosing strategies,2 there is currently no published evidence to support the benefits of this practice over lower-frequency treatments.

Most published data supporting the use of ketamine as a treatment for mood disorders are based on trials that have followed up patients for just 1 week after a single administration of the drug.1 While a few small trials (7 trials with sample sizes ranging from 9 to 68) have demonstrated the relative safety of repeated infusions (4-6 total infusions over a couple of weeks), there is very little published data on the efficacy and safety of longer-term use. Most of these repeated dosing trials have shown that the majority of benefit experienced by patients occurs within the first 2 weeks of treatment. Hence, it may be reasonable to discontinue treatment after 2 weeks if no meaningful benefit is achieved.

As most trials to date suggest that a short course of ketamine does not usually provide long-lasting benefits to patients with a chronic disease, many clinicians currently offer maintenance ketamine treatment.2 However, there is insufficient evidence to meaningfully inform long-term treatment with ketamine. Considering the liability of the potential for abuse as well as concerns for cognitive impairment and cystitis associated with chronic high-frequency exposure, it is reasonable to suggest that clinicians limit the administration to the minimum effective dosing frequency and use recurring assessments of cognition, bladder functioning, and substance use when long-term treatment is provided until more information on the longer-term safety is available. Moreover, during this early stage of clinical development, the consensus statement strongly cautions against the practice of take-home, self-administration of ketamine.

Conclusions

While the discovery of ketamine’s robust and rapid-acting antidepressant effects has appropriately led to considerable enthusiasm among some clinicians and considerable hope among some patients, this enthusiasm for this promising treatment should be coupled with caution given the limitations of the existing knowledge base and the potential adverse effects of long-term treatment. However, considering the tremendous individual and societal burden of mood disorders, the high percentage of patients that do not achieve satisfactory responses from the currently available approved treatments, and the recent evidence of rising rates of suicide, expedited research into this potentially transformative treatment is needed. Several ongoing studies (such as NCT01945047NCT03113968, and NCT00088699) are attempting to address these knowledge gaps and enrollment in these trials should be encouraged when possible. In addition to the standard randomized clinical trials, the creation of a registry of patients receiving ketamine off-label as a treatment for mood disorders could serve as an efficient way to learn more about the longer-term effectiveness and safety of the treatment and could be beneficial in guiding the rational use of the treatment.

References

1.

Newport  DJ, Carpenter  LL, McDonald  WM, Potash  JB, Tohen  M, Nemeroff  CB; APA Council of Research Task Force on Novel Biomarkers and Treatments.  Ketamine and other NMDA antagonists.  Am J Psychiatry. 2015;172(10):950-966.PubMedGoogle ScholarCrossref

2.

Wilkinson  ST, Toprak  M, Turner  MS, Levine  SP, Katz  RB, Sanacora  G.  A survey of the clinical, off-label use of ketamine as a treatment for psychiatric disorders.  Am J Psychiatry. 2017;174(7):695-696.PubMedGoogle ScholarCrossref

3.

Sanacora  G, Frye  MA, McDonald  W,  et al; American Psychiatric Association (APA) Council of Research Task Force on Novel Biomarkers and Treatments.  A consensus statement on the use of ketamine in the treatment of mood disorders.  JAMA Psychiatry. 2017;74(4):399-405.PubMedGoogle ScholarCrossref

4.

Vuyk  J, Sitsen  E, Reekers  M. Intravenous anesthetics. In: Miller  RD, ed.  Miller’s Anesthesia. 8th ed. Philadelphia, PA: Elsevier Saunders; 2015:821-863.

5.

Singh  JB, Fedgchin  M, Daly  EJ,  et al.  A double-blind, randomized, placebo-controlled, dose-frequency study of intravenous ketamine in patients with treatment-resistant depression.  Am J Psychiatry. 2016;173(8):816-826.PubMedGoogle ScholarCrossref

6.

Fava  M, Freeman  MP, Flynn  M,  et al. Double-blind, placebo-controlled, dose-ranging trial of intravenous ketamine as adjunctive therapy in treatment-resistant depression. Presented at: Annual Meeting of the American Society of Clinical Psychopharmacology; May 30, 2017; Miami, Florida.

7.

Su  TP, Chen  MH, Li  CT,  et al.  Dose-related effects of adjunctive ketamine in Taiwanese patients with treatment-resistant depression [published online May 11, 2017].  Neuropsychopharmacology. doi:10.1038/npp.2017.94PubMedGoogle Scholar

A Consensus Statement on the Use of Ketamine in the Treatment of Mood Disorders

Gerard Sanacora, MD, PhD1Mark A. Frye, MD2William McDonald, MD3et alSanjay J. Mathew, MD4,5Mason S. Turner, MD6Alan F. Schatzberg, MD7Paul Summergrad, MD8Charles B. Nemeroff, MD, PhD9; for the American Psychiatric Association (APA) Council of Research Task Force on Novel Biomarkers and Treatments
JAMA Psychiatry. 2017;74(4):399-405. doi:10.1001/jamapsychiatry.2017.0080

A Consensus Statement on the Use of Ketamine in the Treatment of Mood Disorders

Abstract

Importance  Several studies now provide evidence of ketamine hydrochloride’s ability to produce rapid and robust antidepressant effects in patients with mood and anxiety disorders that were previously resistant to treatment. Despite the relatively small sample sizes, lack of longer-term data on efficacy, and limited data on safety provided by these studies, they have led to increased use of ketamine as an off-label treatment for mood and other psychiatric disorders.

Observations  This review and consensus statement provides a general overview of the data on the use of ketamine for the treatment of mood disorders and highlights the limitations of the existing knowledge. While ketamine may be beneficial to some patients with mood disorders, it is important to consider the limitations of the available data and the potential risk associated with the drug when considering the treatment option.

Conclusions and Relevance  The suggestions provided are intended to facilitate clinical decision making and encourage an evidence-based approach to using ketamine in the treatment of psychiatric disorders considering the limited information that is currently available. This article provides information on potentially important issues related to the off-label treatment approach that should be considered to help ensure patient safety.

 

Introduction

 

The American Psychiatric Association Council of Research Task Force on Novel Biomarkers and Treatments found that the data from 7 published placebo-controlled, double-blind, randomized clinical studies on ketamine hydrochloride infusion therapy in the treatment of depression comprising 147 treated patients provide “compelling evidence that the antidepressant effects of ketamine infusion are both rapid and robust, albeit transient.”1(p958) Reports of ketamine’s unique antidepressant effects, combined with frequent media coverage promulgating the potential benefits of ketamine treatment, have generated substantial interest and optimism among patients, families, patient advocacy groups, and clinicians alike. This interest has led to a rapidly escalating demand for clinical access to ketamine treatment and an increasing number of clinicians willing to provide it. However, many in the field suggest that caution should be used with this approach, as the numbers of patients included in these published studies and case series remain relatively small (the eTable in the Supplement compares other recently developed treatments), and ketamine treatment for mood disorders has not been tested in larger-scale clinical trials to demonstrate its durability and safety over time.2,3 Moreover, the treatment approach has not been subject to the scrutiny of a US Food and Drug Administration review or approval for an on-label psychiatric indication, and, despite more than 45 years of clinical experience with ketamine as an anesthetic agent, there are no postmarketing surveillance data on the use of ketamine for any psychiatric indication to provide information on its safety and effectiveness.

 

The relatively unique nature of this situation presents an urgent need for some guidance on the issues surrounding the use of ketamine treatment in mood disorders. This review by the American Psychiatric Association Council of Research Task Force on Novel Biomarkers and Treatments Subgroup on Treatment Recommendations for Clinical Use of Ketamine is intended to complement the recent American Psychiatric Association meta-analysis1 and other recent reviews410 and aims to provide an overview and expert clinical opinion of the critical issues and considerations associated with the off-label use of ketamine treatment for mood disorders. Because relatively limited high-quality, published information on this topic exists, to our knowledge, this report is not intended to serve as a standard, guideline, clinical policy, or absolute requirement. The main intent of the report is to highlight the current state of the field and the critical issues to be considered when contemplating the use of ketamine for treatment-resistant depression. Use of this report cannot guarantee any specific outcome and is not endorsed or promulgated as policy of the American Psychiatric Association.

 

Patient Selection

 

There are no clearly established indications for the use of ketamine in the treatment of psychiatric disorders. However, the selection of appropriate patients for ketamine treatment requires consideration of the risks and benefits of the treatment in the context of the patient’s severity of depression, duration of current episode, previous treatment history, and urgency for treatment. To date, the strongest data supporting ketamine’s clinical benefit in psychiatric disorders are in the treatment of major depressive episodes without psychotic features associated with major depressive disorder.1,11 Even these data are limited by the fact that most of those studies evaluated efficacy only during the first week following a single infusion of ketamine. However, emerging studies suggest that repeated dosing can extend the duration of effect for at least several weeks.12,13 Although some limited data on the use of ketamine in treating other psychiatric diagnoses exist (eBox 1 in the Supplement), we do not believe there are sufficient data to provide a meaningful review of the assessment of risks and benefits of ketamine use in these other disorders at present.

 

In addition to diagnostic considerations, appropriate patient selection requires an assessment of other medical, psychological, or social factors that may alter the risk to benefit ratio of the treatment and affect the patient’s capacity to provide informed consent. For these reasons, we recommend that each patient undergo a thorough pretreatment evaluation process (Table)1417 that assesses several relevant features of the patient’s past and current medical and psychiatric condition before initiating ketamine treatment. We also recommend that an informed consent process be completed during this evaluation. Rationale for the suggestions listed in the Table are provided in eBox 1 in the Supplement.

 

Clinician Experience and Training

 

There are considerable differences in the experience and clinical expertise of the clinicians currently administering ketamine to patients for the treatment of mood disorders. At present, there are no published guidelines or recommendations outlining the specific training requirements that clinicians should complete before administering doses of ketamine that are lower than those used in anesthesia. In attempting to balance the needs for treatment availability and patient safety, one must consider the information available regarding the use of ketamine at the relevant dose range in similar patient populations to formulate an advisory on clinical credentialing for ketamine administration for the treatment of mood disorders.

 

The peak plasma ketamine hydrochloride concentrations of 70 to 200 ng/mL seen with the typical antidepressant dose of 0.5 mg/kg delivered intravenously (IV) during 40 minutes (0.5 mg/kg per 40 minutes IV) do not produce general anesthetic effects. The concentrations are well below the peak plasma ketamine hydrochloride concentrations generally used for surgical anesthesia (2000-3000 ng/mL) and below the concentrations associated with awakening from ketamine hydrochloride anesthesia (500-1000 ng/mL).1820 Reporting on 833 ketamine infusions in healthy individuals resulting in peak plasma ketamine concentrations in the same general range as those achieved with a dose of 0.5 mg/kg per 40 minutes IV, Perry et al21 found 3 individuals who became nonresponsive to verbal stimuli, but all remained medically stable during the infusion and none required any form of respiratory assistance. A second, more recent study reported no persistent medical complications or significant changes in oxygen saturation among 84 otherwise healthy patients with depression who received a total of 205 infusions of ketamine hydrochloride, 0.5 mg/kg per 40 minutes IV.9 However, transient mean (SD) peak increases in systolic (19.6 [12.8] mm Hg) and diastolic (13.4 [9.8] mm Hg) blood pressure were reported during the infusions, with blood pressure levels exceeding 180/100 mm Hg or heart rates exceeding 110 beats per minute in approximately 30% of the patients treated. A single serious adverse cardiovascular-related event was reported in this study (0.49% of infusions), but it was considered to be attributable to a vasovagal episode following venipuncture for a blood draw, and it resolved without complications.

 

The data available from these studies and other case reports in the literature suggest that the dose of ketamine hydrochloride typically used in the treatment of mood disorders (0.5 mg/kg per 40 minutes IV) does not appear to have significant effects on the respiratory status of healthy individuals or patients with depression who are otherwise generally medically healthy. However, ketamine treatment could have meaningful effects on blood pressure and heart rate for some patients. Considering the potential risks associated with ketamine hydrochloride administration at the dose of 0.5 mg/kg per 40 minutes IV, it is recommended that clinicians delivering the treatment be prepared to manage potential cardiovascular events should they occur. Based on this information, we suggest that a licensed clinician who can administer a Drug Enforcement Administration Schedule III medication (in most states this is an MD or DO with appropriate licensing) with Advanced Cardiac Life Support certification should provide the treatments.

 

Because it is also possible for patients to experience prominent transient dissociative or even psychotomimetic effects while being treated with ketamine,22 clinicians should also be familiar with behavioral management of patients with marked mental status changes and be prepared to treat any emergency behavioral situations. Furthermore, it is suggested that an on-site clinician be available and able to evaluate the patient for potential behavioral risks, including suicidal ideation, before discharge to home. Finally, treating clinicians should be able to ensure that rapid follow-up evaluations of patients’ psychiatric symptoms can be provided as needed.

 

In addition to the minimal general training requirements, it is also recommended that clinicians develop some level of experience with the specific method of ketamine administration before performing the procedure independently. Precise delineation of required experience and documentation of this experience should be based on local community standards of practice and/or clinical practice committees. Reports such as the Statement on Granting Privileges for Administration of Moderate Sedation to Practitioners Who Are Not Anesthesia Professionals, published by the American Society of Anesthesiologists,23 can be used to inform the development of these standards.

 

Treatment Setting

 

Although the administration of ketamine at peak plasma concentrations similar to those produced by a dose of 0.5 mg/kg per 40 minutes IV has proven to be relatively safe to date, the potentially concerning acute effects on cardiovascular function and behavior suggest that the clinical setting should provide sufficient means of monitoring the patients and providing immediate care if necessary. Although there are relatively low levels of evidence to support the use of any specific monitoring methods in reducing the risks of ketamine treatment with doses that are lower than those used in anesthesia, it should be expected that such a facility have a means of monitoring basic cardiovascular (electrocardiogram, blood pressure) and respiratory (oxygen saturation or end-tidal CO2) function. It should also be expected that there would be measures in place to rapidly address and stabilize a patient if an event should arise. These measures would include a means of delivering oxygen to patients with reduced respiratory function, medication, and, if indicated, restraints to manage potentially dangerous behavioral symptoms. Moreover, there should be an established plan to rapidly address any sustained alterations in cardiovascular function, such as providing advanced cardiac life support or transfer to a hospital setting capable of caring for acute cardiovascular events. Patients deemed at higher risk for complications based on pretreatment evaluation should be treated at a facility that is appropriately equipped and staffed to manage any cardiovascular or respiratory events that may occur.

 

Medication Delivery

 

Dose

 

Most clinical trials and case reports available in the literature have used the ketamine hydrochloride dose of 0.5 mg/kg per 40 minutes IV that was cited in the original report by Berman et al.24 Limited information is available regarding the use of different routes of delivery and doses of ketamine. A meta-analysis of 6 trials assessing the effects of the standard dose of 0.5 mg/kg per 40 minutes IV and 3 trials assessing very low doses of ketamine hydrochloride (50-mg intranasal spray, 0.1-0.4 mg/kg IV, and 0.1-0.5 mg/kg IV intramuscularly or subcutaneously) reported that the dose of 0.5 mg/kg per 40 minutes IV appears to be more effective than very low doses in reducing the severity of depression.4 However, there is substantial heterogeneity in the design of the clinical trials, and the total number of participants included in that analysis is very few, markedly limiting the ability to draw any firm conclusions from this report.

 

Although there is now a growing number of reports examining the effects of various doses and rates of ketamine infusion, including studies showing lower doses and reduced infusion rates2527 to be effective and studies showing higher doses and extended infusion rates28,29 to have clinical benefit, at present we believe that insufficient information was provided in those studies to allow any meaningful analysis of any specific dose or route of treatment compared with the standard dose of 0.5 mg/kg per 40 minutes IV. Considering the lower-level evidence for doses and routes of administration other than 0.5 mg/kg per 40 minutes IV, if alternative doses are being used, that information should be presented to the patient during the informed consent process, and appropriate precautions should be made in managing any increased risk associated with the changes in ketamine administration. However, the use of alternative doses and routes of administration could be appropriate for individual patients under specific conditions.

 

One example of a rationale for dose adjustment is related to the dosing of ketamine for patients with a high body mass index (calculated as weight in kilograms divided by height in meters squared). The fact that greater hemodynamic changes were observed in patients with a body mass index of 30 or higher who were receiving a dose of 0.5 mg/kg per 40 minutes9suggests that adjusting the ketamine dosing to ideal body weight (using the person’s calculated ideal body weight and not actual body weight to determine dosing) may be an appropriate step to help ensure safety for patients with a body mass index of 30 or higher. However, there is currently very limited information supporting this approach.

 

Delivery Procedure

 

To help best ensure patient safety and to minimize risks, it is strongly advised that site-specific standard operating procedures be developed and followed for the delivery of ketamine treatments for major depressive episodes. The standard operating procedure should contain predosing considerations covering the following: (1) confirmation of preprocedural evaluation and informed consent; (2) assessment of baseline vital signs, including blood pressure, heart rate, and oxygen saturation or end-tidal CO2; (3) criteria for acceptable baseline vital signs before initiation of medication delivery (eBox 2 in the Supplement); and (4) incorporation of a “time-out” procedure in which the name of the patient and correct dosing parameters are confirmed.

Supplement

 

Standard operating procedures should also include specifically defined ongoing assessments of patients’ physiological and mental status during the infusion process, including the following: (1) assessment of respiratory status (ie, oxygen saturation or end-tidal CO2); (2) assessment of cardiovascular function (blood pressure and heart rate, reported on a regular basis); (3) assessment of the level of consciousness (ie, Modified Observer’s Assessment of Alertness/Sedation Scale30) or other documented assessment of responsiveness; and (4) delineation of criteria for stopping the infusion (eBox 3 in the Supplement) and a clear plan for managing cardiovascular or behavioral events during treatment.

 

Immediate posttreatment evaluations, assessments, and management should ensure that the patient has returned to a level of function that will allow for safe return to his or her current living environment. This assessment should include documentation of return to both baseline physiological measures and mental status. It is also critical to ensure that a responsible adult is available to transport the patient home if the treatment is being administered on an outpatient basis. Recommendations regarding driving and use of heavy machinery, as well as use of concomitant medications, drugs, or alcohol, should also be reviewed before discharge. It is also important to review follow-up procedures and ensure that the patient has a means of rapidly contacting an appropriately trained clinician if necessary.

 

Follow-up and Assessments

 

Efficacy Measures of Short-term Repeated Administration

 

The existing data surrounding the benefits of repeated infusions of ketamine remain limited.1,11 Although an increasing number of small case series evaluate the efficacy of repeated ketamine administration for the treatment of major depressive episodes, there is a very small number of randomized clinical trials in the literature.1 The lack of clinical trials in this area makes it difficult to provide suggestions on the frequency and duration of treatment with even moderate levels of confidence. Most studies and case reports published to date on this topic have examined the effects of less than 1 month of treatment.12,26,3134

 

A recent randomized, placebo-controlled clinical trial (using saline as the placebo) of 68 patients with treatment-resistant major depressive disorder examined the efficacy of ketamine, 0.5 mg/kg per 40 minutes IV, both 2 and 3 times weekly for up to 2 weeks and found both dosing regimens to be nearly equally efficacious (change in mean [SD] Montgomery-Åsberg Depression Rating Scale total score for ketamine 2 times weekly, –18.4 [12.0] vs placebo, –5.7 [10.2]; and ketamine 3 times weekly, –17.7 [7.3] vs placebo, –3.1 [5.7]).13 After 2 weeks of treatment, patients treated with ketamine 2 times weekly showed a 69% rate of response and 37.5% rate of remission vs placebo, at 15% and 7.7%, respectively, and those treated with ketamine 3 times weekly had a 53.8% rate of response and 23.1% rate of remission vs placebo, at 6% and 0%, respectively. In the ensuing open-label phase of the study, patients were allowed to continue with active medication at the dose frequency they were originally assigned for an additional 2-week period. At the end of 4 weeks of treatment, the 13 patients who received ketamine 2 times weekly and continued to receive the additional 2 weeks of treatment had a mean 27-point reduction in the Montgomery-Åsberg Depression Rating Scale score compared with a 23-point decrease for the 13 patients who received ketamine 3 times weekly. Although this was clearly not a definitive study, it is the best evidence currently available, to our knowledge, to suggest that twice-weekly dosing is as efficacious as more frequent dosing for a period of up to 4 weeks. In general, most of the available reports describing the effects of repeated treatments showed the largest benefits occurring early in the course of treatment, but some reports did show some cumulative benefit of continued treatment.31

 

Very limited data exist to suggest a clear point of determining the futility of treatment, but there are a few reports of patients responding after more than 3 infusions. Based on the limited data available, patients should be monitored closely using a rating instrument to assess clinical change to better reevaluate the risk to benefit ratio of continued treatment. In addition, only 1 report suggests that an increased dose of ketamine (beyond 0.5 mg/kg per 40 minutes) may lead to a response to treatment in patients who had previously not responded.28 Equally few data are available to suggest a standard number of treatments that should be administered to optimize longer-term benefit of the treatment.

 

Efficacy of Longer-term Repeated Administration

 

To our knowledge, there are extremely limited published data on the longer-term effectiveness and safety of ketamine treatment in mood disorders. This literature is confined to a few case series that do not allow us to make a meaningful statement about the longer-term use of ketamine.35,36 Several clinics providing such treatments are currently using a 2- or 3-week course of ketamine delivered 2 or 3 times per week, followed by a taper period and/or continued treatments based on empirically determined duration of responses for each patient. However, there remain no published data that clearly support this practice, and it is strongly recommended that the relative benefit of each ketamine infusion be considered in light of the potential risks associated with longer-term exposure to ketamine and the lack of published evidence for prolonged efficacy with ongoing administration. The scarcity of this information is one of the major drawbacks to be considered before initiating ketamine therapy for patients with mood disorders and should be discussed with the patient before beginning treatment.

 

Safety Measures and Continuation of Treatment

 

Based on the known or suspected risks of cognitive impairment37 and cystitis38 associated with chronic high-frequency use of ketamine and the known substance abuse liability of the drug, assessments of cognitive function, urinary discomfort, and substance use39 should be considered if repeated administrations are provided (eBox 4 in the Supplement).

 

Considering the known potential for abuse of ketamine40 and recent reports of abuse of prescribed ketamine for the treatment of depression,41 clinicians should be vigilant about assessing the potential for patients to develop ketamine use disorder. Close clinical follow-up with intermittent urine toxicology screening for drugs of abuse and inquiries about attempts to receive additional ketamine treatments at other treatment centers should be implemented when clinical suspicion of ketamine abuse is present. Moreover, the number and frequency of treatments should be limited to the minimum necessary to achieve clinical response. Considering the evidence suggesting that the mechanism of action requires some delayed physiological effect to the treatment and does not appear to require sustained blood concentrations of the drug to be present, there is no evidence to support the practice of frequent ketamine administration. The previously mentioned report showing twice-weekly dosing to be at least as effective as dosing 3 times a week13 for up to 4 weeks appears to support this idea instead of more frequent dosing schedules.

 

At this point of early clinical development, we strongly advise against the prescription of at-home self-administration of ketamine; it remains prudent to have all doses administered with medical supervision until more safety information obtained under controlled situations can be collected. Discontinuation of ketamine treatment is recommended if the dosing cannot be spaced out to a minimum administration of 1 dose per week by the second month of treatment. The goal remains to eventually taper and discontinue treatment until more long-term safety data can be collected.

 

Future Directions

 

The rapid onset of robust, transient antidepressant effects associated with ketamine infusions has generated much excitement and hope for patients with refractory mood disorders and the clinicians who treat them. However, it is necessary to recognize the major gaps that remain in our knowledge about the longer-term efficacy and safety of ketamine infusions. Future research is needed to address these unanswered questions and concerns. Although economic factors make it unlikely that large-scale, pivotal phase 3 clinical trials of racemic ketamine will ever be completed, there are several studies with federal and private foundation funding aiming to address some of these issues. It is imperative that clinicians and patients continue to consider enrollment in these studies when contemplating ketamine treatment of a mood disorder. It is only through these standardized clinical trials that we will be able to collect the data necessary to answer some of the crucial questions pertaining to the efficacy and safety of the drug. A second means of adding to the knowledge base is to develop a coordinated system of data collection on all patients receiving ketamine for the treatment of mood disorders. After such a registry is created, all clinicians providing ketamine treatment should consider participation.

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Ketamine’s role in treatment of depression: Study

The anaesthetic drug Ketamine has been shown to be beneficial in some cases of depression and suicidal ideation which have typically failed to respond to other standard antidepressant medications. A new study has explored the actual workings of ketamine in depression and found that the drug can act on the same receptors as opioid pain relievers.

The latest study was published in the American Journal of Psychiatry.

For this the researchers from the Stanford’s Neurosciences Institute included 12 volunteers at first. These cases were all of treatment-resistant depression.

The participants were all given infusion of Ketamine. In addition some were administered naltrexone and others normal saline infusion. Naltrexone is a drug that can block the effects of opioids.

Results showed that those on ketamine and saline combination found relief from their depressive symptoms quickly compared to those on ketamine and naltrexone combination. In fact those on ketamine and saline placebo reported at least a 90 percent reduction in their symptoms within the first three days of the infusion.

No such improvement was seen among those on ketamine and naltrexone. This proved that when the opioid actions are blocked, the ketamine cannot function as an antidepressant. Both groups faced certain side effects of ketamine such as an “out-of-the-body” experience, dysphoric feelings, tripping etc. This also showed that the antidepressant action of Ketamine was separate from its usual actions, which were seen in all participants in either group.

The initial trial plan was to include 30 patients. Due to the dramatic improvement seen in one group and no changes in the other, the team decided to stop the trial prematurely. This was to spare patients useless treatment.

Ketamine has been in news recently due to its unexplored potential as an antidepressant. If proven, researchers believe, this could impact depression research significantly. Ketamine has gathered interest mainly because it does not change the brain chemistry unlike other antidepressants. Co-author Boris Heifets, a clinical assistant professor of anesthesiology, perioperative and pain medicine at Stanford explained that ketamine blocks the brain’s receptors for glutamate. Glutamate is an important neurotransmitter in the brain. Many researchers have thought that glutamate could be the key zone where ketamine acts as an antidepressant. Heifets added that ketamine is not a simple drug and has varied targets which could be responsible for its antidepressant activities. A lot of money has been spent on developing agents that could work on the glutamate receptors and try to mimic ketamine’s antidepressant actions.

This study shows that the approach is incorrect and glutamates are not the target lead author Nolan Williams explained. Co-senior study author Dr. Alan Schatzberg, a professor of psychiatry and behavioral sciences at Stanford explained that the ketamine was not working as “everyone thought it was working.”

Heifets noted that ketamine is a drug of abuse (called “Special K” in party circuits) that has been in use for a long time and there is an abuse potential of this drug acting on the opioid receptors to provide such effects. He warned that this abuse potential should be kept in mind before ketamine comes into the market as an antidepressant.

However the whole team agrees that this new study shows how ketamine can help patients who have intractable depression. New drugs could be developed in the same lines they explain. These drugs could possibly activate the opioid receptors without having abuse potential they add. Williams added that ketamine has been seen to provide relief of symptoms in other mental ailments such as obsessive compulsive disorders and now is the time to explore if opioids play a role in these diseases as well.

Mark George, a professor of psychiatry, radiology and neuroscience at the Medical University of South Carolina in an editorial accompanying the article wrote that this study is a small one and so should be confirmed in larger trials before conclusions could be drawn.

VA Using Ketamine for PTSD and Depression | IV Ketamine for Depression | 703-844-0184 | Alexandria, Va | 22306 | Ketamine therapy | IV Ketamine center | Ketamine doctor | Springfield, Va | Fairfax, Va 22314 22304

VA Using Ketamine for PTSD and Depression | IV Ketamine for Depression | 703-844-0184

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The VA Recognizes Ketamine As An Emergency Treatment For PTSD And Depression Patients At High Suicide Risk

CLEARWATER, Fla., Sept. 27, 2018 /PRNewswire/ — Long used as an safe and effective sedative for surgery, Ketamine has found new life as a treatment for severe depression, PTSD and suicidal ideation. Praised by some mental health experts, the drug so far has achieved very good results in clinical trials. The military now recognizes its’ potential, and last fall Brooke Army Medical Center in San Antonio became part of study on its effects. BAMC will treat active-duty troops with Ketamine, while a VA hospital near Yale will treat veterans. Another study is currently underway at a Veterans Affairs medical center in Cleveland, Ohio. The VA is trying to stem the tide of rising suicide rates among veterans, which average 22 per day – that’s one suicide every 65 minutes.

A staff psychiatrist at the Louis Stokes Cleveland VA Medical Center in Ohio, Dr. Punit Vaidya stated “30% of individuals with major depression don’t respond to traditional medications, so people can become desperate for things that work, because they can have a huge impact on their quality of life, and their overall functioning. The effects of the ketamine infusion can often be seen within a day, if not hours,” Vaidya explained. “If you look at their depression ratings and suicidal ratings given right before treatment and even four hours later you can see a significant reduction and I think that’s really quite remarkable,” Vaidya said.

Dr. Ashraf Hanna, a board certified physician and director of pain management at the Florida Spine Institute in Clearwater, Florida discusses PTSD and Treatment-Resistant Depression: “There are many forms of depression that can be treated by a psychiatrist with various modalities, anti-depressants and psychotherapy. IV Ketamine therapy is only reserved for those patients that have Treatment-Resistant Depression that have failed conventional therapy. IV Ketamine infusion therapyhas offered a new hope to patients that had no hope.”

When asked what prompted his use of IV Ketamine for PTSD and Depression and if any universities were involved in its development, Dr. Hanna went on to say: “There have been multiple universities involved in the research such as Harvard, Yale and Stanford that have proven the success rate of IV Ketamine for treatment-resistant depression. Since I was already successfully using IV Ketamine for CRPS/RSD,FibromyalgiaNeuropathy, and Post-Treatment Lyme Disease Syndrome, with over 10,000 infusions to date, I wanted to expand the treatment for PTSD, Depression, bipolar and Obsessive Compulsive Disorders. Since I am not a psychiatrist, I do not treat depression, but I work with qualified psychiatrists, and if he or she feels the patient has failed other treatment modalities, I then administer IV Ketamine for treatment-resistant depression.”

Dr. Bal Nandra and Ketamine patient Jason LaHood on how Ketamine is redefining the way patients are treated for depression

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Links for Ketamine Articles

  1. NYMag.com – What It’s Like to Have Your Severe Depression Treated With a Hallucinogenic Drug
    http://nymag.com/scienceofus/2016/03/what-its-like-to-treat-severe-depression-with-a-hallucinogenic-drug.html
  2. Huffington Post – How Ketamine May Help Treat Severe Depression
    http://www.huffingtonpost.com.au/2017/04/05/how-ketamine-may-help-treat-severe-depression_a_22027886/
  3. Murrough, Iosifescu, Chang et al. Antidepressant Efficacy in Treatment-Resistant Major Depression: A Two-Site Randomized Controlled Trial  Am J Psychiatry. 2013 Oct 1, 170(10): 1134-1142
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3992936/
  4. Murrough, Perez, Pillemer, et al.. Rapid and Longer0Term Antidepressant Effects of Repeated Ketamine Infusions in Treatment-Resistant Major Depression Biol Psychiatry 2013 Aug 15; 74(4): 250-256
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3725185/
  5. Murrough, Burdick, Levitch et al. Neurocognitive Effects of Ketamine and Association with Antidepressant Response in Individuals with Treatment-Resistant Depression: A Randomized Controlled Trial Neuropsychopharmacology 2015 Apr; 40(5): 1084-1090
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4367458/
  6. Feder, Parides, et al. Efficacy of Intravenous Ketamine for Treatment of Chronic Posttraumatic Stress Disorder A Randomized Clinical Trial Jama Psychiatry 2014 June;71(6): 681-8
    http://jamanetwork.com/journals/jamapsychiatry/fullarticle/1860851
  7. Schwartz, Murrough, Iosifescu Ketamine for treatment-resistant depression: recent developments and clinical applications Evid Based Ment Health 2016 May; 19(2):35-8
    http://ebmh.bmj.com/content/ebmental/19/2/35.full.pdf
  8. Rodriguez, Kegeles, et al Randomized Controlled Crossover Trial of Ketamine in Obsessive-Compulsive Disorder: Proof-of-Concept Neuropsychopharmacology 2013 Nov; 38(12): 2475-2483
    https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3799067/pdf/npp2013150a.pdf
  9. Singh, Fedgchin, Daly et al. A Double-Blind, Randomized, Pacebo-Controlled, Dose-Frequency Study of Intravenous Ketamine in Patients With Treatment-Resistant Depression American Journal of Psychiatry 2016 August; 173(8): 816-826
    http://ajp.psychiatryonline.org/doi/pdf/10.1176/appi.ajp.2016.16010037
  10. Taylor,  Landeros-Weisenberger, Coughlin et al. Ketamine for Social Anxiety Disorder: A Randomized, Placebo-Controlled Crossover Trial  Neuropsychopharmacology 2017 August;
    https://www.ncbi.nlm.nih.gov/pubmed/28849779

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WHAT CAN I EXPECT AT AN INFUSION VISIT?

We will ask you to fast for 8 hours before your infusion. Once you have checked in, you will complete a questionnaire to assess your current status. The IV will be started in your hand or your arm using a small catheter. This may feel like a sting from a small bug bite. The Ketamine will be administered through your IV over a period of 40 minutes. We will take your vital signs before, during, and after the infusion. After resting for an additional 15-20 minutes after the infusion, you will be discharged home with your driver.

  1. What is Ketamine? 
    Ketamine is an anesthetic drug that has been available since the 1960’s. In high doses, it can cause a ‘dissociative anesthesia” which induces hypnosis like states as well as unconsciousness. Around 2000, scientists started looking at Ketamine IV infusions carefully when its clinical usefulness was expanded to include a role in the management of mood disorders as well as chronic pain.
  2. Why can I not drive the day of the infusion?
    Ketamine is a potent anesthetic. As with any anesthetic, we advise our patients to NOT operate any heavy machinery for the remainder of the day due to potential residual effects.
  3. What are the side effects?
    Less than 2% of people will experience side effects. Some of the common side effects are: drowsiness, nausea, dizziness, poor coordination, blurred vision, and feeling strange or unreal. Most of these symptoms dissipate after the first hour of receiving the infusion.
  4. Are there certain conditions that are contra-indications for Ketamine treatment?
    Yes. If you have a history of cardiovascular disease, uncontrolled hypertension, history of psychosis, history of failed Ketamine infusion treatment, history of substance abuse or dependence within the year (patients will undergo a screening process) you will not qualify for Ketamine infusion treatments.
  5. How will I know if I need a booster infusion and how frequently will I require them?
    The duration of antidepressant efficacy after the initial treatment is different for everyone. The studies show that the variance can be 15 days to indefinitely. This is quite a range and unfortunately, there are no predictors for the duration.
  6. Is there a guarantee that this will work for me?
    Unfortunately, we cannot give guarantees.  Studies have shown that 70% of people will obtain efficacy.  After the first 2 infusions, we will be able to ascertain whether the infusions will work for you. We will not advise you to continue your treatment after the first 2 infusions if we do not see a certain amount of improvement.
  7. Isn’t Ketamine addictive? 
    Ketamine has the potential to be addictive. Studies have shown that at these doses and frequency, Ketamine is not addictive.
  8. Do I have to continue my current treatments for depression? 
    Yes. We advise that you alert your current health care provider that you are undergoing these treatments and that you maintain your current regimen.  It can be dangerous to stop taking your medications without the care of a physician. Our patients have a brighter outlook and a positive drive after their treatment that has allowed them to have higher success rates with psychotherapy. We will be happy to work with your current health care provider to provide the optimal outcome.

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VA Using Ketamine for PTSD and Depression

Revisiting the Hallucinogenic Potential of Ketamine | 703-844-0184 | Ketamine for depression | IV Ketamine | Alexandria, Va 22306 | Ketamine IV | Ketamine center | Ketamine drip |

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CAll 703-844-0184 for an immediate appointment to evaluate you for a Ketamine infusion:

Ketaminealexandria.com    703-844-0184 Call for an infusion to treat your depression. PTSD, Anxiety, CRPS, or other pain disorder today.

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Revisiting the Hallucinogenic Potential of Ketamine

 

LIPSKIY/SHUTTERSTOCK.COM; WITHTHESEHANDS/SHUTTERSTOCK.COM

A Case Built on Current Research Findings

Ketamine has caused quite a stir in psychiatric practice. Sub-anesthetic administrations of ketamine have been shown to markedly improve symptoms of depression and anxiety.1 While the growing off-label use of ketamine speaks to the need for novel approaches to psychiatric care and treatment-resistant illness, it also presents an ethical dilemma, wherein widespread adoption has once again leaped ahead of scientific understanding.

The current literature suggests that therapeutic effects of ketamine involve modulation of glutamate neurotransmission, α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA) receptor potentiation, downstream influences on neurotrophic signaling cascades and neuroplasticity, and functional changes in assorted neural networks. Additional work is necessary to clarify the importance and reliability of these biological findings.

Another arc to the ketamine story dates back to a decades-old era of psychedelic research and search for medications with transformative power. Indeed, although primarily conceptualized today as a dissociative anesthetic, ketamine has also been classified more broadly as a hallucinogen. Hallucinogens function by various pharmacological mechanisms of action but exhibit similarities in their ability to occasion temporary but profound alterations of consciousness, involving acute changes in somatic, perceptual, cognitive, and affective processes.

Current biological theories involving ketamine’s antidepressant effect may be inseparable from these non-ordinary experiences of consciousness, but we can only know the answers to questions we ask. Here we examine findings from contemporary research that hint at the unexplored hallucinogenic potential of ketamine and considerations for future investigation.

There has been a resurgence of interest in hallucinogenic psychedelics (eg, psilocybin, lysergic acid diethylamide (LSD), mescaline, N,N-Dimethyltryptamine (DMT)) and entactogens (eg, 3, 4-methylenedioxymethamphetamine [MDMA]) in psychiatric research, which are hypothesized to achieve clinical benefit due to, in part, experiences of altered consciousness and fundamental shifts in mental frameworks.2

These drugs have been associated with cognitive states of enduring personal importance and have been compared with mystical experiences that might emerge over the ordinary course of life and carry sacred or spiritual meaning. Furthermore, these experiences may powerfully influence existential concepts of self, including moral values, self-identity, and purpose. There is converging evidence that these psychedelic effects are mediated in part by activity at 5HT-2A receptors. Ketamine may induce alterations in consciousness and personal frameworks similar to those achieved by serotonergic psychedelics while also sharing a common glutamatergic pathway of drug effect.3,4 However, there has been little investigation into how such changes might mediate the therapeutic potential of ketamine.

Preliminary data suggest that ketamine produces meaningful, transformative experiences that may help patients accept healthier values, behaviors, and beliefs related to abstinence from drugs and alcohol.5,6 Other evidence suggests that dose-related mystical-type experiences mediate the effects of ketamine on motivation to quit in cocaine-dependent research volunteers.7Few recent studies have examined whether ketamine’s hallucinogenic properties are implicated in antidepressant effects; however, psychiatric vulnerabilities to depression plausibly involve an existential dimension. This dimension includes depressive symptoms of hopelessness, guilt, and suicidality, which appear to be ketamine-sensitive.8

The evidence

Given the paucity of modern literature exploring the psychedelic and mystical properties of ketamine in depression, more widespread data on psychotomimetic and dissociative effects of ketamine provide some initial groundwork. Berman and collegeagues9 and Zarate and colleagues10 suggested that the antidepressant effects of ketamine (0.5 mg/kg over 40 min) were disconnected from ketamine-induced psychotomimetic symptoms. The antidepressant effects, measured by the Hamilton Depression Rating Scale (HDRS), were significant even after positive symptoms on the Brief Psychiatric Rating Scale (BPRS) returned to baseline. However, it was also noted that initial changes in BPRS positive symptom scales from baseline trended to predict a greater decrease in HDRS scores within a day of treatment with ketamine.

A small study further demonstrated a substantial relationship between psychotomimetic effects 30 minutes after ketamine administration (0.54mg/kg over 30 min) as measured by BPRS and antidepressant effects in the following week.11 A larger study involving 108 patients found that dissociation measured by the Clinician Administered Dissociative States Scale (CADDS) at 40 minutes was associated with HDRS score improvement at 230 minutes and 7 days after infusion.12 Although no relationship between initial BPRS positive subscale scores and antidepressant effect was found, a correlation between CADSS and BPRS scores was found at 40 minutes postinfusion.

In a small study by Valentine and colleagues,13 the proposed correlation between ketamine-induced dissociation and antidepressant efficacy was not observed. However, a larger analysis found that greater intra-infusion dissociation as measured by CADDS was one of the strongest predictors of extended antidepressant response.14 Both of these studies utilized a single 0.5 mg/kg ketamine infusion delivered over 40 minutes.

Further investigation is needed, but there is an emerging rationale for a connection between the psychotomimetic or dissociative effects of ketamine and its antidepressant efficacy. Perhaps the experience of these effects simply un-blinds patients as to whether they are receiving ketamine or placebo in randomized trials; it may also be that such symptoms are only a “side effect” of ketamine’s mechanism of action. However, it is also worth considering that the psychotomimetic or dissociative effects associated with ketamine treatment are markers or mediators of subjective experiences of potential therapeutic value seen with other hallucinogenic agents.

Recommended dosing

The recommended doses of ketamine for anesthetic induction are typically 1 to 4.5mg/kg IV and 6.5 to 13 mg/kg IM, with alternate, off-label recommendations for 0.5 to 2 mg/kg IV and 4 to 10 mg/kg IM, primarily in the context of adjuvant drug use. For use in depression, ketamine is most commonly administered at a sub-anesthetic dose of 0.5mg/kg IV across 40 minutes.

Interestingly, in a study of electroconvulsive therapy (ECT) and anesthetic induction with either a near-anesthetic dose of IV ketamine (0.8mg/kg) alone, sub-anesthetic ketamine (0.5mg/kg) plus propofol (0.8mg/kg), or propofol alone (0.8mg/kg), predicted a more rapid antidepressant effect and a higher remission rate than propofol use. The near-anesthetic dose of ketamine was associated with superior antidepressant effects than the mixed, sub-anesthetic dose.15

In a study of ketamine alongside psychotherapy for heroin addiction, Krupitsky and colleagues6compared the effects of 2 doses of ketamine (0.2 and 2.0 mg/kg IM) and found that only the higher dose was associated with a “full psychedelic experience” as measured by the Hallucinogen Rating Scale (HRS). The lower dose was considered a “sub-psychedelic” active placebo, but was nonetheless associated with some positive drug effects: patients were still affected by their experiences and considered them useful and therapeutic. The high dose group ultimately experienced higher rates of abstinence, greater effect on emotional attitudes related to abstinence, and lower rates of relapse and drug craving than the low dose group. Both doses resulted in post-treatment reductions in measures of depression and anxiety; there were no significant differences between the groups.

Similarly, Dakwar and colleagues7 compared the effects of 0.41 mg/kg and 0.71 mg/kg doses of IV ketamine given to cocaine-dependent patients. Dose-dependent mystical-type effects as measured by Hood’s Mysticism Scale (HMS) were seen as well as a relationship between HMS scores and the motivation to quit cocaine 24 hours post-infusion.

A different study involving a lower dose of intramuscular (IM) ketamine did not generate the same mystical-type phenomena.16 Perhaps these results highlight the importance of calibrating dosing and delivery. Clements and colleagues17 demonstrated that ketamine had reduced bioavailability with IM administration compared with IV administration. Taken together, these findings support the idea that positive treatment outcomes for ketamine may be dose-dependent and its psychoactive effects are based on delivery parameters.

Limitation

One criticism of ketamine has been its short duration of antidepressant effect, with benefits peaking at 24 hours post-infusion and generally subsiding by 72 hours. The most promising approach to this challenge thus far seems to be the strategy of repeated-dose ketamine infusions, which have observed extended time-to-relapse and increased rates of antidepressant response.18

If ketamine’s therapeutic effect is indeed mediated by psychoactive experience, it may be that repeated dosing of ketamine improves outcomes by increasing opportunities for personally meaningful events to occur. One caveat is that some studies have shown repeated dosing to be associated with fewer dissociative symptoms over time—at first glance this suggests that the antidepressant value of serial ketamine administration might be independent of hallucinogenic effects.

While this requires further investigation, it is also important to consider other interpretations of that evidence: that acclimation to altered states of consciousness may contribute to recall bias, that experimental protocols that frame dissociative symptoms as a “side effect” or “adverse event” may lead to underreporting if overall patient experiences of ketamine are positive, or even that the benefit of repeated dosing may be less related to cumulative drug effect than other factors, such as repeated interactions with care providers or increased opportunities for reflection and synthesis.

One study of repeated infusions demonstrated that antidepressant response very early in the course of treatment strongly predicted subsequent response; conversely, a lack of rapid response was a poor prognostic indicator for improvement after additional infusions. Whether positive early responses to ketamine are mediated by psychological factors, biological susceptibility, or both: it is necessary to clarify these factors in shaping sustainable strategies for treatment.

A cautious approach also seems imperative given evidence that ketamine demonstrates agonist activity at μ-opioid receptors and dopaminergic effects that may confer acute relief of depressive symptoms but also greater risk for positive drug reinforcement and dependence. With further insight into psychological responses mediated by ketamine, it may be that a therapy-based framework for ketamine administration optimizes treatment efficacy and sustainability, while also minimizing unnecessary drug exposure, adverse effects of chronic use, and dependency risk.

Further study needed

In one study, long-term abstinence in persons who were substance dependent was achieved with Ketamine Psychedelic Therapy (KPT), which incorporates 1 or 2 sessions of ketamine-facilitated existential reappraisal into an existential psychotherapy.6 Additional exploration would be needed to determine which therapeutic approaches most beneficially augment ketamine treatment and minimize risks for harm. Nevertheless, a more holistic approach to ketamine as a treatment modality may be better suited to recreate the marked, persistent effects of MDMA in patients with PTSD. For example, in one study sustained symptom reductions were achieved with 12 weeks of psychotherapy but with limited MDMA exposures of only three 8-hour sessions.19

Another area that requires further investigation is how a patient’s past history might shape psychoactive responses. These personal and quite variable histories have been explored for some hallucinogenic agents but minimally for ketamine. The expectations and personal experiences of the individual user along with the external environment of use have been identified as critical factors in influencing subjective drug effects—coined “set” and “setting,” respectively—and are now considered well-established elements of human hallucinogen research.20

Therapies aimed at the pharmacological production of a transformative experience may depend on factors such as patient personality structure, preparation for treatment, emotional activation before drug intake, treatment context, and perceived quality of the experience. Given the unique psychological risks of hallucinogen administration, it is recommended that clinicians screen for personal or family histories of psychotic or other severe psychiatric disorders prior to treatment. Clinicians are also encouraged to facilitate careful patient preparation for sessions, provide a safe physical environment for treatment administration, and allow for interpersonal support during sessions. These and other insights from hallucinogenic research might valuably inform treatment protocols for ketamine administration.

Ketamine is uniquely poised to make a tremendous impact on psychiatric care, even redefining boundaries for patients with variations in depressive disorders that were once thought to be “treatment resistant.” Our synthesis of this emerging and old literature points to the unexplored hallucinogenic potential of ketamine. By further understanding the desirable psychoactive effects of ketamine, clinicians can build on initial treatment successes and maximize patient successes.

Future directions for research include:

• Further investigating the relationship between ketamine-induced psychotomimetic and dissociative effects and treatment efficacy

• Clarifying the connection between these effects and potentially desirable hallucinogenic experiences

• Exploring the therapeutic value of such elicited experiences

• Revisiting dosing strategies that account for existential phenomena and looking beyond dissociation as simply being an “adverse event”

• Incorporating psychotherapy-based frameworks into ongoing investigation

• Assessing set and setting factors that may shape treatment responses

Some answers and clues are likely to be found in the forgotten works of older psychedelic research. Agents like ketamine can exert their greatest therapeutic effect in the afterglow of profound alterations of consciousness, revealing a propensity for growth and healing that has not been evident to the suffering, depressed patient. Wherever the journey takes us, it is exactly the right time to bring together all the strands—brain and mind, old and new, caution and thrill—in assembling the unfinished story of ketamine.

 

References:

1. Feifel D. Breaking sad: unleashing the breakthrough potential of ketamine’s rapid antidepressant effects. Drug Dev Res. 2016;77;489-494.

2. Griffiths RR, Richards WA, McCann U, Jesse R. Psilocybin can occasion mystical-type experiences having substantial and sustained personal meaning and spiritual significance. Psychopharmacol (Berl). 2006;187:268-283, 292.

3. Perry EB, Cramer JA, Cho HS, et al. Psychiatric safety of ketamine in psychopharmacology research. Psychopharmacol (Berl). 2007;192:253-260.

4. Vollenweider FX, Kometer M. The neurobiology of psychedelic drugs: implications for the treatment of mood disorders. Nat Rev Neurosci. 2010;11:642-651.

5. Jansen KLR. Ketamine: Dreams and Realities. Sarasota, FL: Multidisciplinary Association for Psychedelic Studies; 2001.

6. Krupitsky E, Burakov A, Romanova T, et al. Ketamine psychotherapy for heroin addiction: immediate effects and two-year follow-up. J Subst Abuse Treat. 2002;23:273-283.

7. Dakwar E, Levin F, Foltin RW, et al. The effects of sub-anesthetic ketamine infusions on motivation to quit and cue-induced craving in cocaine dependent research volunteers. Biol Psychiatry. 2014;76:40-46.

8. Mathew SJ, Shah A, Lapidus K, et al. Ketamine for treatment-resistant unipolar depression: current evidence. CNS Drugs. 2012;26:189-204.

9. Berman RM, Cappiello A, Anand A, et al. Antidepressant effects of ketamine in depressed patients. Biol Psychiatry. 2000;47:351-354.

10. Zarate CA, Singh JB, Carlson PJ, et al. A randomized trial of an N-methyl-D-aspartate antagonist in treatment-resistant major depression. Arch Gen Psychiatry. 2006;63:856-864.

11. Sos P, Kirova M, Novak T, et al. Relationship of ketamine’s antidepressant and psychotomimetic effects in unipolar depression. Neuro Endocrinol Lett. 2013;34:287-293.

12. Luckenbaugh DA, Niciu MJ, Ionescu DF, et al. Do the dissociative side effects of ketamine mediate its antidepressant effects? J Affect Disord. 2014;159:56-61.

13. Valentine GW, Mason GF, Gomez R, et al. The antidepressant effect of ketamine is not associated with changes in occipital amino acid neurotransmitter content as measured by [(1)H]-MRS. Psychiatry Res. 2011;191:122-127.

14. Pennybaker SJ, Niciu MJ, Luckenbaugh DA, Zarate CA. Symptomatology and predictors of antidepressant efficacy in extended responders to a single ketamine infusion. J Affect Disord. 2017;208:560-566.

15. Zhong X, He H, Zhang C, et al. Mood and neuropsychological effects of different doses of ketamine in electroconvulsive therapy for treatment-resistant depression. J Affect Disord. 2016;201:124-130.

16. Lofwall MR, Griffiths RR, Mintzer MZ. Cognitive and subjective acute dose effects of intramuscular ketamine in healthy adults. Exp Clin Psychopharmacol. 2006;14:439-449.

17. Clements JA, Nimmo WS, Grant IS. Bioavailability, pharmacokinetics, and analgesic activity of ketamine in humans. J Pharma Sci. 1982;71:539-542.

18. Murrough JW, Perez AM, Pillemer S, et al. Rapid and longer-term antidepressant effects of repeated ketamine infusions in treatment-resistant major depression. Biol Psychiatry. 2013;74:250-256.

19. Mithoefer, M. C. et al. Durability of improvement in post-traumatic stress disorder symptoms and absence of harmful effects or drug dependency after 3,4-methylenedioxymethamphetamine-assisted psychotherapy: a prospective long-term follow-up study. J Psychopharmacol. 2013;27:28-39.

20. Leary T, Litwin GH, Metzner R. Reactions to psilocybin administered in a supportive environment. J Nerv Ment Dis. 1963;137:561-573.

Ketamine for Depresion | Obsessive-compulsive disorder| Fairfax, Va | 703-844-0184 | Ketamine doctors | IV ketamine | Ketamine treatment center | 22306

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Ketamine

The drug Ketamine is considered a breakthrough treatment for depression and some other neuropsychiatric conditions. Below are excerpts from recent articles discussing this revolutionary treatment and the links to the full articles.

Ketamine For Depression: the Highs and Lows.

The Lancet Psychiatry. VOLUME 2, ISSUE 9, P783–784, SEPTEMBER 2015

Long used as an anaesthetic and analgesic, most people familiar with ketamine know of it for this purpose. Others know it as a party drug that can give users an out-of-body experience, leaving them completely disconnected from reality. Less well known is its growing off-label use in the USA for depression, in many cases when other options have been exhausted.

David Feifel, a professor of psychiatry at the University of California, San Diego, was one of the first clinicians to use ketamine off-label to treat depression at UCDS’s Center for Advanced Treatment of Mood and Anxiety Disorders, which he recently founded. “Currently approved medications for depression all have about the same, very limited efficacy. A large percentage of patients with depression do not get an adequate level of relief from these antidepressants even when they have tried several different ones and even when other drugs known to augment their effects are added to them”, Feifel tells The Lancet Psychiatry. “The stagnation in current antidepressant medication on the one hand, and the tremendous number of treatment-resistant patients, has propelled me to explore truly novel treatments like ketamine.”

Compelling published study results and case reports exist of patients’ depression—in some cases deeply entrenched depression that has lasted months or even years—alleviating within hours of use of ketamine. However, critics have warned that the drug has not been studied sufficiently (at least outside clinical trials), and also emphasized the cost. Patients can pay more than $1000 per session for treatment that must usually be repeated several times. That cost is rarely covered by the patient’s medical insurance.

Advocates of ketamine use in depression are excited because it has a different mechanism of action to standard antidepressants, which affect signalling by monoamine neurotransmitters such as serotonin, noradrenaline, or dopamine. Ketamine is thought to act by blocking N-methyl-d-aspartate (NMDA) receptors in the brain, which interact with the amino acid neurotransmitter glutamate.

Feifel states that he has patients who have been receiving ketamine treatments every 2–4 weeks for long periods, some for around 3 years, and has not yet seen any safety issues arise.

Pharmaceutical companies are entering this exciting arena by attempting to develop new drugs based on ketamine without similar side-effects. Feifel dismisses the notion that the dissociative so-called trip induced by ketamine is actually an important negative side-effect. “Although I have had a couple patients have unpleasant ‘trips’, it’s exceedingly rare, usually dose related, and very transitory due to ketamine’s rapid metabolism.” Feifel says that, more often than not, patients find the trip to be positive, or even spiritual, and believe it is an important component of the antidepressant effect they experience afterwards. “There is no doubt the dissociative effect represents a logistical issue, requiring monitoring—and this should be addressed in any approval given for ketamine”, he adds.

Feifel says that it is not for him, but for his patients to decide where the balance of risks and benefits lies in trying ketamine to treat their depression”One could make a compelling argument that it’s unethical to withhold ketamine treatments from someone who has chronic, severe treatment resistant depression. But I know this from the patients who tell me they would not be in this world right now if it were not for the ketamine.”

Feifel concludes that it is straightforward to talk to TRD patients about ketamine. “I tell them all the relevant information. The efficacy rates, time to onset of benefits, duration limitations, alternatives, lack of insurance coverage, and other information. My job is to make sure they understand the parameters of the treatment, not to decide whether they should do it.”

Full article: The Lancet

Ketamine for depression the highs and lows b

Onetime Party Drug Hailed as Miracle for Treating Severe Depression

Washington Post, Feb 2, 2016

Ketamine, popularly known as the psychedelic club drug Special K, has been around since the early 1960s. It is a staple anesthetic in emergency rooms, regularly used for children when they come in with broken bones and dislocated shoulders. It’s an important tool in burn centers and veterinary medicine, as well as a notorious date-rape drug, known for its power to quickly numb and render someone immobile. Since 2006, dozens of studies have reported that it can also reverse the kind of severe depression that traditional antidepressants often don’t touch.

Experts are calling it the most significant advance in mental health in more than half a century. They point to studies showing ketamine not only produces a rapid and robust antidepressant effect; it also puts a quick end to suicidal thinking.  “This is the next big thing in psychiatry,” says L. Alison McInnes, a San Francisco psychiatrist who over the past year has enrolled 58 severely depressed patients in Kaiser’s San Francisco clinic. The excitement stems from the fact that it’s working for patients who have spent years cycling through antidepressants, mood stabilizers and various therapies. “Psychiatry has run out of gas” in trying to help depressed patients for whom nothing has worked, she says. “There is a significant number of people who don’t respond to antidepressants, and we’ve had nothing to offer them other than cognitive behavior therapy, electroshock therapy and transcranial stimulation.”

Ketamine does, however, have one major limitation: Its relief is temporary. Clinical trials at NIMH have found that relapse usually occurs about a week after a single infusion.

A study published in the journal Science in 2010 suggested that ketamine restores brain function through a process called synaptogenesis. Scientists at Yale University found that ketamine not only improved depression-like behavior in rats but also promoted the growth of new synaptic connections between neurons in the brain.

Patients often describe a kind of lucid dreaming or dissociative state in which they lose track of time and feel separated from their bodies. Many enjoy it; some don’t. But studies at NIMH and elsewhere suggest that the psychedelic experience may play a small but significant role in the drug’s efficacy.

As a drug once known almost exclusively to anesthesiologists, ketamine now falls into a gray zone. As the use of ketamine looks likely to grow, many psychiatrists say that use of ketamine for depression should be left to them. “The bottom line is you’re treating depression,” says psychiatrist David Feifel, director of the Center for Advanced Treatment of Mood and Anxiety Disorders at the University of California at San Diego. “And this isn’t garden-variety depression. The people coming in for ketamine are people who have the toughest, potentially most dangerous depressions. I think it’s a disaster if anesthesiologists feel competent to monitor these patients.”

Full article: The Washington Post

Onetime party drug hailed as miracle for treating severe depression


A Ketamine intravenous drip being prepared. (Amarett Jans/Courtesy of Enrique Abreu)

February 1, 2016

It was November 2012 when Dennis Hartman, a Seattle business executive, managed to pull himself out of bed, force himself to shower for the first time in days and board a plane that would carry him across the country to a clinical trial at the National Institute of Mental Health (NIMH) in Bethesda.

After a lifetime of profound depression, 25 years of therapy and cycling through 18 antidepressants and mood stabilizers, Hartman, then 46, had settled on a date and a plan to end it all. The clinical trial would be his last attempt at salvation.

For 40 minutes, he sat in a hospital room as an IV drip delivered ketamine through his system. Several more hours passed before it occurred to him that all his thoughts of suicide had evaporated.

“My life will always be divided into the time before that first infusion and the time after,” Hartman says today. “That sense of suffering and pain draining away. I was bewildered by the absence of pain.”

Ketamine could be speedy depression treatment

Ketamine is being used by researchers at The National Institutes of Health as a treatment for major depression. 

Ketamine, popularly known as the psychedelic club drug Special K, has been around since the early 1960s. It is a staple anesthetic in emergency rooms, regularly used for children when they come in with broken bones and dislocated shoulders. It’s an important tool in burn centers and veterinary medicine, as well as a notorious date-rape drug, known for its power to quickly numb and render someone immobile.

Since 2006, dozens of studies have reported that it can also reverse the kind of severe depression that traditional antidepressants often don’t touch. The momentum behind the drug has now reached the American Psychiatric Association, which, according to members of a ketamine task force, seems headed toward a tacit endorsement of the drug for treatment-resistant depression.

Experts are calling it the most significant advance in mental health in more than half a century. They point to studies showing ketamine not only produces a rapid and robust antidepressant effect; it also puts a quick end to suicidal thinking.

Traditional antidepressants and mood stabilizers, by comparison, can take weeks or months to work. In 2010, a major study published in JAMA, the journal of the American Medical Association, reported that drugs in a leading class of antidepressants were no better than placebos for most depression.

A growing number of academic medical centers, including Yale University, the University of California at San Diego, the Mayo Clinic and the Cleveland Clinic, have begun offering ketamine treatments off-label for severe depression, as has Kaiser Permanente in Northern California.

The ‘next big thing’

“This is the next big thing in psychiatry,” says L. Alison McInnes, a San Francisco psychiatrist who over the past year has enrolled 58 severely depressed patients in Kaiser’s San Francisco clinic. She says her long-term success rate of 60 percent for people with treatment-resistant depression who try the drug has persuaded Kaiser to expand treatment to two other clinics in the Bay Area. The excitement stems from the fact that it’s working for patients who have spent years cycling through antidepressants, mood stabilizers and various therapies.

“Psychiatry has run out of gas” in trying to help depressed patients for whom nothing has worked, she says. “There is a significant number of people who don’t respond to antidepressants, and we’ve had nothing to offer them other than cognitive behavior therapy, electroshock therapy and transcranial stimulation.”

McInnes is a member of the APA’s ketamine task force, assigned to codify the protocol for how and when the drug will be given. She says she expects the APA to support the use of ketamine treatment early this year.

The guidelines, which follow the protocol used in the NIMH clinical trial involving Hartman, call for six IV drips over a two-week period. The dosage is very low, about a tenth of the amount used in anesthesia. And when it works, it does so within minutes or hours.

“It’s not subtle,” says Enrique Abreu, a Portland, Ore., anesthesiologist who began treating depressed patients with it in 2012. “It’s really obvious if it’s going to be effective.

“And the response rate is unbelievable. This drug is 75 percent effective, which means that three-quarters of my patients do well. Nothing in medicine has those kind of numbers.”

So far, there is no evidence of addiction at the low dose in which infusions are delivered. Ketamine does, however, have one major limitation: Its relief is temporary. Clinical trials at NIMH have found that relapse usually occurs about a week after a single infusion.

Ketamine works differently from traditional antidepressants, which target the brain’s serotonin and noradrenalin systems. It blocks N-methyl-D-aspartate (NMDA), a receptor in the brain that is activated by glutamate, a neurotransmitter.

In excessive quantities, glutamate becomes an excitotoxin, meaning that it overstimulates brain cells.

“Ketamine almost certainly modifies the function of synapses and circuits, turning certain circuits on and off,” explains Carlos Zarate Jr., NIMH’s chief of neurobiology and treatment of mood disorders, who has led the research on ketamine. “The result is a rapid antidepressant effect.”

Rapid effect

study published in the journal Science in 2010 suggested that ketamine restores brain function through a process called synaptogenesis. Scientists at Yale University found that ketamine not only improved depression-like behavior in rats but also promoted the growth of new synaptic connections between neurons in the brain.

mTOR-dependent synapse formation underlies the rapid antidepressant effects of NMDA antagonists.

Psychedelic-Assisted Psychotherapy A Paradigm Shift in Psychiatric Research and Development

Psychedelics Promote Structural and Functional Neural Plasticity.

Even a low-dose infusion can cause intense hallucinations. Patients often describe a kind of lucid dreaming or dissociative state in which they lose track of time and feel separated from their bodies. Many enjoy it; some don’t. But studies at NIMH and elsewhere suggest that the psychedelic experience may play a small but significant role in the drug’s efficacy.

“It’s one of the things that’s really striking,” says Steven Levine, a Princeton, N.J., psychiatrist who estimates that he has treated 500 patients with ketamine since 2011. “With depression, people often feel very isolated and disconnected. Ketamine seems to leave something indelible behind. People use remarkably similar language to describe their experience: ‘a sense of connection to other people,’ ‘a greater sense of connection to the universe.’ ”

Although bladder problems and cognitive deficits have been reported among long-term ketamine abusers, none of these effects have been observed in low-dose clinical trials. In addition to depression, the drug is being studied for its effectiveness in treating obsessive-compulsive disorder, post-traumatic stress disorder, extreme anxiety and Rett syndrome, a rare developmental disorder on the autism spectrum.

Booster treatments

The drug’s fleeting remission effect has led many patients to seek booster infusions. Hartman, for one, began his search before he even left his hospital room in Bethesda.

Four years ago, he couldn’t find a doctor in the Pacific Northwest willing to administer ketamine. “At the time, psychiatrists hovered between willful ignorance and outright opposition to it,” says Hartman, whose depression began creeping back a few weeks after his return to Seattle.

It took nine months before he found an anesthesiologist in New York who was treating patients with ketamine. Soon, he was flying back and forth across the country for bimonthly infusions.

Upon his request, he received the same dosage and routine he’d received in Bethesda: six infusions over two weeks. And with each return to New York, his relief seemed to last a little longer. These days, he says that his periods of remission between infusions often stretch to six months. He says he no longer takes any medication for depression besides ketamine.

“I don’t consider myself permanently cured, but now it’s something I can manage,” Hartman says, “like diabetes or arthritis. Before, it was completely unmanageable. It dominated my life and prevented me from functioning.”

In 2012 he helped found the Ketamine Advocacy Network, a group that vets ketamine clinics, advocates for insurance coverage and spreads the word about the drug.

And word has indeed spread. Ketamine clinics, typically operated by psychiatrists or anesthesiologists, are popping up in major cities around the country.

Levine, for one, is about to expand from New Jersey to Denver and Baltimore. Portland’s Abreu recently opened a second clinic in Seattle.

Depression is big business. An estimated 15.7 million adults in the United States experienced at least one major depressive episode in 2014, according to the NIMH.

“There’s a great unmet need in depression,” says Gerard Sanacora, director of the Yale Depression Research Program. “We think this is an extremely important treatment. The concern comes if people start using ketamine before CBT [cognitive behavioral therapy] or Prozac. Maybe someday it will be a first-line treatment. But we’re not there yet.”

Many unknowns

Sanacora says a lot more research is required. “It’s a medication that can have big changes in heart rate and blood pressure. There are so many unknowns, I’m not sure it should be used more widely till we understand its long-term benefits and risks.”

While a single dose of ketamine is cheaper than a $2 bottle of water, the cost to the consumer varies wildly, running anywhere between $500 and $1,500 per treatment. The drug itself is easily available in any pharmacy, and doctors are free to prescribe it — as with any medication approved by the Food and Drug Administration — for off-label use. Practitioners attribute the expense to medical monitoring of patients and IV equipment required during an infusion.

There is no registry for tracking the number of patients being treated with ketamine for depression, the frequency of those treatments, dosage levels, follow-up care and adverse effects.

“We clearly need more standardization in its use,” Zarate says. “We still don’t know what the proper dose should be. We need to do more studies. It still, in my opinion, should be used predominantly in a research setting or highly specialized clinic.”

As a drug once known almost exclusively to anesthesiologists, ketamine now falls into a gray zone.

“Most anesthesiologists don’t do mental health, and there’s no way a psychiatrist feels comfortable putting an IV in someone’s arm,” Abreu says.

It’s a drug, in other words, that practically demands collaboration. Instead, it has set off a turf war. As the use of ketamine looks likely to grow, many psychiatrists say that use of ketamine for depression should be left to them.

“The bottom line is you’re treating depression,” says psychiatrist David Feifel, director of the Center for Advanced Treatment of Mood and Anxiety Disorders at the University of California at San Diego. “And this isn’t garden-variety depression. The people coming in for ketamine are people who have the toughest, potentially most dangerous depressions. I think it’s a disaster if anesthesiologists feel competent to monitor these patients. Many of them have bipolar disorder and are in danger of becoming manic. My question [to anesthesiologists] is: ‘Do you feel comfortable that you can pick up mania?’ ”

But ketamine has flourished from the ground up and with little or no advertising. The demand has come primarily from patients and their families; Zarate, for instance, says he receives “at least 100 emails a day” from patients.

Nearly every one of them wants to know where they can get it.

 

KETAMINE for depression and Magnesium| 703-844-0184 | Ketamine IV doctors | FAIRFAX, VA 22304 | KETAMINE FOR DEPRESSION | KETAMINE FOR ANXIETY | KETAMINE CLINIC |

NOVA Health Recovery  <<< Ketamine Treatment Center Fairfax, Virginia

CAll 703-844-0184 for an immediate appointment to evaluate you for a Ketamine infusion:

Ketaminealexandria.com    703-844-0184 Call for an infusion to treat your depression. PTSD, Anxiety, CRPS, or other pain disorder today.

email@novahealthrecovery.com  << Email for questions to the doctor

Ketamine center in Fairfax, Virginia    << Ketamine infusions

Ketamine – NOVA Ketamine facebook page – ketamine treatment for depression

facebook Ketamine page

NOVA Health Recovery  << Ketamine clinic Fairfax, Va  – Call 703-844-0184 for an appointment – Fairfax, Virginia

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Ketamine Virginia = Ketamine IV Drip Doctors

The IV Medical Center - IV Vitamin Drips for wellness and recovery


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Magnesium is essential for our health. It is a key cofactor for our energy regulation, and in plants it is the center of the chlorphyll molecule. Low magnesium in people is associated with depression. Among the treatments we provide at the IV Medical Center is Ketamine infusions. In the process of our treatments, we assess patients for toher medical conditions that may lead to refractory depression and low magnesium is one of them.

 

 

Ketamine, an anesthetic and street drug known as “Special K” has garnered a lot of attention for it’s ability, in some, to relieve the symptoms of very severe depression in a matter of minutes. A recent study has demonstrated how it might work, but before you go signing up for a clinical trial (and there are currently many going on in the US), it’s important to understand the downsides to the drug. One major problem is that the effects wear off, usually within 10 days, leaving you just as depressed as before. It can cause urinary incontinence, bladder problems, addiction, and, with chronic use, it can worsen mental health problems, causing more depression, anxiety, and panic attacks.

Ketamine seems to have a remarkable, short term ability to heal the synapses injured by chronic stress. However, anything that acts that quickly and successfully usually has a long-term cost. All powerfully addictive drugs work on our own natural receptors and neurons. Cocaine, for example, causes immediate racing euphoria by inhibiting the natural neurotransmitter dopamine from being recycled, leaving bunches of dopamine in the synaptic cleft. In the very short term, you feel great. In the long term, you tax the system by driving the neurotransmitter system far out of balance in an aggressive way.

Nicotine has a similar effect on the alpha-7 nicotinic receptor. It activates it in a pleasing way, but unfortunately desensitizes the receptor so much that only nicotine will keep it firing. A nutrient found in foods such as egg yolks called choline activates the same receptor, but without desensitizing it.  Long term, regular ingestion of choline keeps the receptor functional and happy, helping with certain brain tasks. Long term, regular use of nicotine activates the receptor but forces you to take more nicotine to keep the receptor working, leaving you foggy-headed and less sharp if you go without cigarettes.

So is there a less dramatic, “natural” version of ketamine, something we can safely ingest every day, but might be a little depleted in our modern diets? Nothing taken in physiologic amounts would reverse a depression in half an hour like ketamine, but could another chemical we find in food and mineral water help with resilience to stress, synaptic repair, and make us more resistant to depression and anxiety symptoms? Sure—that chemical is the mineral magnesium. Magnesium, like ketamine, acts as an antagonist to the NMDA receptor, which means it is a counter to glutamate, the major excitatory neurotransmitter in the brain. The exact mechanisms are complex, but both ketamine and magnesium seem to help glutamate do its job, activating the receptor, without damaging the receptor with too much activation, which, chronically, leads to excitotoxicity, synaptic degradation, inflammation, and even cell death.

One of the exciting things about ketamine is that it works in some people with severe treatment resistant depression who have failed the traditional therapies. Treatment-resistant individuals tend to have lower intracellular magnesium levels than normal (1). Ketamine and magnesium may also work synergistically, complementing each other. Ketamine leads to an increase of intracellular magnesium, and ketamine will reverse the normally seen magnesium decreases after brain trauma (2). There is some evidence also that more standard antidepressant medications, such as imipramine, work in part by reversing the magnesium-depleting effects of chronic stress, suggesting that adding magnesium supplementation to standard antidepressant regimens might help the medications work better (at least in rodents) (3).

It’s great to see an interesting compound like ketamine be taken seriously and thoroughly studied for its action in serious, resistant depression. Ultimately its usefulness may be limited to hospitalized patients who can be closely monitored for the side effects, and who also may benefit the most from the quick mechanism of action, while the longer term risks may be outweighed by the short term benefit in such a critical, serious situation. I would love to see a much safer compound, the mineral magnesium, be studied as an adjunct treatment.

In the mean time, magnesium supplementation is generally safe for most folks with normal kidney function. Many folks eating a normal Western Diethave a low intake of the mineral (4). Those with bowel obstructions, very slow heart rate, or dangerously low blood pressure should not take it. Magnesium can interfere with the absorption of certain medicines (digoxin, nitrofurantoin, bisphosphanates, and some anti malaria drugs). Here are some excellent food sources of magnesium (though remember that both nuts and grains have phytates, which bind minerals, so the magnesium you absorb may not be quite as much as the magnesium you ingest.) Magnesium is also available in many mineral waters.

 

Lets digress over Choline. Choline has impact on decreasing schizophrenia in the children of mother’s who supplement the right amount during pregnancy:

Recently in the American Journal of Psychiatrya new paper was published tying nutrient supplementation in pregnant women to positive changes in the brains of their offspring. One of the nutrients that may be less predominant in our modern diets than in traditional diets is the phospholipid known as choline. Phospholipids are exceedingly important for brain development and neuron signaling.

In the current study, 100 pregnant women were randomized to receiving a daily choline supplement (equivalent to the amount of choline found in 3 large eggs) or placebo. After the babies were born, the choline babies continued to get a supplement equal to 100mg of choline daily (the institutes of medicine recommend total daily choline in infants to be 125mg daily), and at measurements of “cerebral inhibition” were taken at about one month and three months of age. Cerebral inhibition is a term used to describe the ability of the brain to tune out a stimulus that happens over and over. For example, if you are trying to work, and someone is running a jackhammer on the street outside, if you have intact cerebral inhibition, your brain will respond less and less to the sound of the jackhammer as it continues. Presumably this change would allow you to focus on more important things, such as the work at hand.

Source: http://www.flickr.com/photos/anniemole/5268772776/sizes/m/

In some brain disorders, such as schizophrenia, cerebral inhibition is impaired. For someone with schizophrenia, the signal from the jackhammer would be just as strong the second and the third and the seventh and the eighth times. You can imagine how you might be affected if you couldn’t tune anything out, if your brain was constantly taking in more stimulation and unable to sort through what was necessarily important or not. It could be this lack of cerebral inhibition (which begins with brain development in utero and early infancy) is one of the central causes of developing schizophrenia later on. The brain, so overwhelmed with stimuli, stops making sense of it, leading to psychosis and eventually the degeneration of neurons.

Cerebral inhibition is typically measured by a test called the p50 evoked potential. Electrodes are placed on the scalp, and then the subject is exposed to a sensory stimulus, in this case, paired sounds. With intact cerebral inhibition, the second time the brain processes the sound, the wave amplitude of the auditory evoked potential 50 milliseconds after the sound will be much less than the first time. (Go to this image from the American Journal of Psychiatry to see what the waveforms look like in healthy controls and subjects with schizophrenia.

P50 evoked potential abnormalities can be seen in infants, and genes that are associated with a higher risk of schizophrenia are also associated with these abnormal evoked potential tests. Choline is known to cross the placenta and help with the brain development of certain receptors that normalize cerebral inhibition. In the study of pregnant women receiving choline supplements, 76% of the infants whose mothers got choline had normal p50 evoked potential tests at age one month. Only 43% of the infants of the mothers who received placebo had tests consistent with intact cerebral inhibition. In addition, a gene known as CHRNA7 correlated with diminished cerebral inhibition in the placebo group of infants, but not in the choline group. That means that it is possible (though there is way too little data to know) the choline supplementation could reduce the risk of schizophrenia in these infants. The ScienceDaily write up of the study can be found here.

Schizophrenia risk is higher in the offspring of malnourished mothers. There is also a known gene that reduces choline levels that is associated with a higher risk of schizophrenia. Choline is also sequestered in the mother’s liver during trauma, anxiety, or depression, depriving the fetus. Measures of developmental delay and other developmental problems are also associated with later risk of schizophrenia.

Nicotine activates but also profoundly desensitizes the same receptor that choline seems to protect and activate (the alpha-7 nicotinic receptor). 90% of people with schizophrenia smoke, and smoking normalizes p50 evoked potential tests is schizophrenia. Smoking in mothers has been associated with poorer infant cerebral inhibition and later childhood behavioral problems, whereas choline has only been shown to be beneficial for brain development. One difference between the two compounds (among many!) is that choline does not desensitize the alpha-7 nicotinic receptor at all, leaving it active so it can play its presumed role in helping with intact cerebral inhibition.

While choline supplementation is the interest of researchers, I’m more interested in having pregnant women eat their meat and egg yolks, the best sources of choline in the diet. Egg yolks are jam packed with great nutrients for the brain, not only choline, but also B vitamins and other fatty acids important for nerve growth. Bananas also have more choline than you would expect for a fruit. Choline levels in the diet have fallen recently with folks restricting their egg and organ meat consumption. These traditional foods have some important nutrients that we don’t want to skimp on in our diets.

 

Choline supplementation during pregnancy presents a new approach to schizophrenia prevention

Choline, an essential nutrient similar to the B vitamin and found in foods such as liver, muscle meats, fish, nuts and eggs, when given as a dietary supplement in the last two trimesters of pregnancy and in early infancy, is showing a lower rate of physiological schizophrenic risk factors in infants 33 days old. The study breaks new ground both in its potentially therapeutic findings and in its strategy to target markers of schizophrenia long before the illness itself actually appears. Choline is also being studied for potential benefits in liver disease, including chronic hepatitis and cirrhosis, depression, memory loss, Alzheimer’s disease and dementia, and certain types of seizures.

Robert Freedman, MD, professor and chairman of the Department of Psychiatry, University of Colorado School of Medicine and one of the study’s authors and Editor of The American Journal of Psychiatry, points out, “Genes associated with schizophrenia are common, so prevention has to be applied to the entire population, and it has to be safe. Basic research indicates that choline supplementation during pregnancy facilitates cognitive functioning in offspring. Our finding that it ameliorates some of the pathophysiology associated with risk for schizophrenia now requires longer-term follow-up to assess whether it decreases risk for the later development of illness as well.”

Normally, the brain responds fully to an initial clicking sound but inhibits its response to a second click that follows immediately. In schizophrenia patients, deficient inhibition is common and is related to poor sensory filtering and familial transmission of schizophrenia risk. Since schizophrenia does not usually appear until adolescence, this trait — measurable in infancy — was chosen to represent the illness.

Half the healthy pregnant women in this study took 3,600 milligrams of phosphatidylcholine each morning and 2,700 milligrams each evening; the other half took placebo. After delivery, their infants received 100 milligrams of phosphatidylcholine per day or placebo. Eighty-six percent of infants exposed to pre- and postnatal choline supplementation, compared to 43% of unexposed infants, inhibited the response to repeated sounds, as measured with EEG sensors placed on the baby’s head during sleep.

 


Journal Reference:

  1. Randal G. Ross et al. Perinatal Choline Effects on Neonatal Pathophysiology Related to Later Schizophrenia RiskAmerican Journal of Psychiatry, 2013; DOI: 10.1176/appi.ajp.2012.12070940
  2. Perinatal Choline Effects on Neonatal Pathophysiology Related to Later Schizophrenia Risk

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Ketamine, magnesium and major depression–from pharmacology to pathophysiology and back.

Ketamine, magnesium and major depression e From pharmacology to pathophysiology and back

Abstract

The glutamatergic mechanism of antidepressant treatments is now in the center of research to overcome the limitations of monoamine-based approaches. There are several unresolved issues. For the action of the model compound, ketamine, NMDA-receptor block, AMPA-receptor activation and BDNF release appear to be involved in a mechanism, which leads to synaptic sprouting and strengthened synaptic connections. The link to the pathophysiology of depression is not clear. An overlooked connection is the role of magnesium, which acts as physiological NMDA-receptor antagonist: 1. There is overlap between the actions of ketamine with that of high doses of magnesium in animal models, finally leading to synaptic sprouting. 2. Magnesium and ketamine lead to synaptic strengthening, as measured by an increase in slow wave sleep in humans. 3. Pathophysiological mechanisms, which have been identified as risk factors for depression, lead to a reduction of (intracellular) magnesium. These are neuroendocrine changes (increased cortisol and aldosterone) and diabetes mellitus as well as Mg(2+) deficiency. 4. Patients with therapy refractory depression appear to have lower CNS Mg(2+) levels in comparison to health controls. 5. Experimental Mg(2+) depletion leads to depression- and anxiety like behavior in animal models. 6. Ketamine, directly or indirectly via non-NMDA glutamate receptor activation, acts to increase brain Mg(2+) levels. Similar effects have been observed with other classes of antidepressants. 7. Depressed patients with low Mg(2+) levels tend to be therapy refractory. Accordingly, administration of Mg(2+) either alone or in combination with standard antidepressants acts synergistically on depression like behavior in animal models.

CONCLUSION:

On the basis of the potential pathophysiological role of Mg(2+)-regulation, it may be possible to predict the action of ketamine and of related compounds based on Mg(2+) levels. Furthermore, screening for compounds to increase neuronal Mg(2+) concentration could be a promising instrument to identify new classes of antidepressants. Overall, any discussion of the glutamatergic system in affective disorders should consider the role of Mg(2+)

 

So back to the magnesium and Ketamine issue: As above, Low magnesium seems to be present in individuals who are depressed and have sleeping disorders. The magnesium is not the type measured by standard blood tests as most magnesium is intracellular. Magnesium may play an important role by antagomizing the NMDA receptors as does Ketamine. Our deficient diets in Magnesium may be increasing our rates of depression!

Magnesium as the original Chill Pill

Source: http://www.flickr.com/photos/derekskey/3219004793/

Magnesium is a vital nutrient that is often deficient in modern diets. Our ancient ancestors would have had a ready supply from organ meats, seafood, mineral water, and even swimming in the ocean, but modern soils can be depleted of minerals and magnesium is removed from water during routine municipal treatment. The current RDA for adults is between 320 and 420mg daily, and the average US intake is around 250mg daily.

Does it matter if we are a little bit deficient? Well, magnesium plays an important role in biochemical reactions all over your body.  It is involved in a lot of cell transport activities, in addition to helping cells make energy aerobically or anaerobically. Your bones are a major reservoir for magnesium, and magnesium is the counter-ion for calcium and potassium in muscle cells, including the heart. If your magnesium is too low, you can experience muscle cramps, arrythmias, and even sudden death. Ion regulation is everything with respect to how muscles contract and nerves send signals. In the brain, potassium and sodium balance each other. In the heart and other muscles, magnesium pulls some of the load.

That doesn’t mean that magnesium is unimportant in the brain. Au contraire!In fact, there is an intriguing article entitled Rapid recovery from major depression using magnesium treatment, published in Medical Hypothesis in 2006. Medical Hypothesis seems like a great way to get rampant (but referenced) speculation into the PubMed database. Fortunately, I don’t need to publish in Medical Hypothesis, as I can engage in such speculation in my blog, readily accessible to Google. Anyway, this article was written by George and Karen Eby, who seem to run a nutrition research facility out of an office warehouse in Austin, Texas – and it has a lot of interesting information about our essential mineral magnesium.

Magnesium is an old home remedy for all that ails you, including “anxiety, apathy, depression, headaches, insecurity, irritability, restlessness, talkativeness, and sulkiness.” In 1968, Wacker and Parisi reported that magnesium deficiency could cause depression, behavioral disturbances, headaches, muscle cramps, seizures, ataxia, psychosis, and irritability – all reversible with magnesium repletion.

Stress is the bad guy here, in addition to our woeful magnesium deficient diets. As is the case with other minerals such as zinc, stress causes us to waste our magnesium like crazy – I’ll explain a bit more about why we do that in a minute.

Let’s look at Eby’s case studies from his paper:

A 59 y/o “hypomanic-depressive male”, with a long history of treatable mild depression, developed anxiety, suicidal thoughts, and insomnia after a year of extreme personal stress and bad diet (“fast food”). Lithium and a number of antidepressants did nothing for him. 300mg magnesium glycinate (and later taurinate) was given with every meal. His sleep was immediately restored, and his anxiety and depression were greatly reduced, though he sometimes needed to wake up in the middle of the night to take a magnesium pill to keep his “feeling of wellness.” A 500mg calcium pill would cause depression within one hour, extinguished by the ingestion of 400mg magnesium.

A 23 year-old woman with a previous traumatic brain injury became depressed after extreme stress with work, a diet of fast food, “constant noise,” and poor academic performance. After one week of magnesium treatment, she became free of depression, and her short term memory and IQ returned.

A 35 year-old woman with a history of post-partum depression was pregnant with her fourth child. She took 200mg magnesium glycinate with each meal. She did not develop any complications of pregnancy and did not have depression with her fourth child, who was “healthy, full weight, and quiet.”

A 40 year-old “irritable, anxious, extremely talkative, moderately depressed” smoking, alchohol-drinkingcocaine using male took 125mg magnesium taurinate at each meal and bedtime, and found his symptoms were gone within a week, and his cravings for tobacco, cocaine, and alcoholdisappeared. His “ravenous appetite was supressed, and … beneficial weight loss ensued.”

Eby has the same question about the history of depression that I do – why is depression increasing? His answer is magnesium deficiency. Prior to the development of widespread grain refining capability, whole grains were a decent source of magnesium (though phytic acid in grains will bind minerals such as magnesium, so the amount you eat in whole grains will generally be more than the amount you absorb). Average American intake in 1905 was 400mg daily, and only 1% of Americans had depression prior to the age of 75. In 1955, white bread (nearly devoid of magnesium) was the norm, and 6% of Americans had depression before the age of 24. In addition, eating too much calcium interferes with the absorption of magnesium, setting the stage for magnesium deficiency.

Beyond Eby’s interesting set of case studies are a number of other studies linking the effects of this mineral to mental health and the stress response system. When you start to untangle the effects of magnesium in the nervous system, you touch upon nearly every single biological mechanism for depression. The epidemiological studies (1) and some controlled trials (2)(3) seem to confirm that most of us are at least moderately deficient in magnesium. The animal models are promising (4). If you have healthy kidneys, magnesium supplementation is safe and generally well-tolerated (up to a point)(5), and many of the formulations are quite inexpensive. Yet there is a woeful lack of well-designed, decent-sized randomized controlled trials for using magnesium supplementation as a treatment or even adjunctive treatment for various psychiatric disorders.

Let’s look at the mechanisms first. Magnesium hangs out in the synapse between two neurons along with calcium and glutamate. If you recall, calcium and glutamate are excitatory, and in excess, toxic. They activate the NMDA receptor. Magnesium can sit on the NMDA receptor without activating it, like a guard at the gate. Therefore, if we are deficient in magnesium, there’s no guard. Calcium and glutamate can activate the receptor like there is no tomorrow. In the long term, this damages the neurons, eventually leading to cell death. In the brain, that is not an easy situation to reverse or remedy.

And then there is the stress-diathesis model of depression, which is the generally accepted theory that chronic stress leads to excess cortisol, which eventually damages the hippocampus of the brain, leading to impaired negative feedback and thus ongoing stress and depression and neurotoxicity badness. Murck tells us that magnesium seems to act on many levels in the hormonal axis and regulation of the stress response. Magnesium can suppress the ability of the hippocampus to stimulate the ultimate release of stress hormone, it can reduce the release of ACTH (the hormone that tells your adrenal glands to get in gear and pump out that cortisol and adrenaline), and it can reduce the responsiveness of the adrenal glands to ACTH. In addition, magnesium can act at the blood brain barrier to prevent the entrance of stress hormones into the brain. All these reasons are why I call magnesium “the original chill pill.”

If the above links aren’t enough to pique your interest, depression is associated with systemic inflammation and a cell-mediated immune response. Turns out, so is magnesium deficiency. In addition, animal models show that sufficient magnesium seems to protect the brain from depression and anxiety after traumatic brain injury (6), and that the antidepressants desipramine and St. John’s Wort (hypericum perforatum) seem to protect the mice from the toxic effects of magnesium deficiency and its relationship to anxious and depressed behaviors (4).

The overall levels of magnesium in the body are hard to measure. Most of our body’s magnesium is stored in the bones, the rest in the cells, and a very small amount is roaming free in the blood. One would speculate that various mechanisms would allow us to recover some needed magnesium from the intracellular space or the bones if we had plenty on hand, which most of us probably don’t. Serum levels may be nearly useless in telling us about our full-body magnesium availability, and studies of levels and depression, schizophrenia, PMS, and anxiety have been all over the place (7). There is some observational evidence that the Mg to Ca ratio may be a better clue. Secondly, the best sources of magnesium in the normal Western diet are whole grains (though again, phytates in grains will interfere with absorption), beans, leafy green veggies, and nuts. These happen to be some of the same sources as folate, and folate depletion is linked with depression, so it may be a confounding factor in the epidemiological studies.

Finally, magnesium is sequestered and wasted via the urine in times of stress. I’m speculating here, but in a hunter-gatherer immediate stress sort of situation, maybe we needed our neurons to fire on all cylinders and our stress hormones to rock and roll through the body in order for us to survive. Presumably we survived or didn’t, and then the stressor was removed, and our paleolithic diets had plenty of magnesium to replace that which went missing. However, it may not be overall magnesium deficiency causing depression and exaggerated stress response – it may just be all that chronic stress, and magnesium deficiency is a biomarker for chronic stress. But it doesn’t hurt to replete one’s magnesium to face the modern world, and at least the relationships should be studied thoroughly. Depression is hugely expensive and debilitating. If we could alleviate some of that burden with enough mineral water… we should know whether that is a reasonable proposition.

As I mentioned before, there are only a few controlled trials of magnesium supplementation and psychiatric disorders. A couple covered premenstrual dysphoria, cravings, and other symptoms (8)(9). Another small study showed some improvement with magnesium supplementation in chronic fatigue syndrome (10). Two open-label studies showed some benefit in mania (11)(12). There is another paper that postulates that magnesium deficiency could exacerbate the symptoms of schizophrenia. However, there is nothing definitive. Which is, of course, quite troubling. How many billions of dollars have we spent on drug research for depression, bipolar disorder, and schizophrenia, when here is a cheap and plausibly helpful natural remedy that hasn’t been properly studied?

So everyone get out there and take some magnesium already!  Whew.  Well, just a few more things to keep in mind before you jump in.

There are some safety considerations with respect to magnesium supplementation. If you have normal kidney function, you do not have myasthenia gravis, bowel obstruction, or bradycardia, you should be able to supplement without too many worries. In addition, magnesium interferes with the absorption of certain pharmaceuticals, including dixogin, nitrofurantoin, bisphosphanates, and some antimalaria drugs. Magnesium can reduce the efficacy of chloropromazine, oral anticoagnulants, and the quinolone and tetracycline classes of antibiotics.

Magnesium oxide is the cheapest readily available formulation, as well as magnesium citrate, which is more likely to cause diarrhea in excess. (In fact, magnesium is a great remedy for constipation). The oxide is not particularly bioavailable, but the studies I’ve referenced above suggest that you can top yourself off after about a month of daily supplementation. Those with short bowels (typically due to surgery that removes a large section of bowel) may want to supplement instead with magnesium oil. You can also put some Epsom salts in your bath. In addition to diarrhea, magnesium can cause sedation, and symptoms of magnesium toxicity (again, quite unlikely if your kidneys are in good shape) are low blood pressure, confusion, arrythmia, muscle weakness, and fatigue. Magnesium is taken up by the same transporter as calcium and zinc, so they can fight with each other for absorption. Jaminet and Jaminet recommend total daily levels (between food and supplements) of 400-800mg. Most people can safely supplement with 200-350mg daily without any problems (again, don’t proceed without a doctor’s supervision if you have known kidney disease or if you are elderly).

People looking for good (but not all paleo) food sources can go here (also a good link for more information on the other formulations of magnesium – there are many!), here, and here.

 

Following are some foods and the amount of magnesium in them:[23]

 

MAGNESIUM  

Magnesium Webpage as below

 

Summary

Magnesium plays important roles in the structure and the function of the human body. The adult human body contains about 25 grams of magnesium. Over 60% of all the magnesium in the body is found in the skeleton, about 27% is found in muscle, 6% to 7% is found in other cells, and less than 1% is found outside of cells (1).

Function

Magnesium is involved in more than 300 essential metabolic reactions, some of which are discussed below (2).

Energy production

The metabolism of carbohydrates and fats to produce energy requires numerous magnesium-dependent chemical reactions. Magnesium is required by the adenosine triphosphate (ATP)-synthesizing protein in mitochondria. ATP, the molecule that provides energy for almost all metabolic processes, exists primarily as a complex with magnesium (MgATP)(3).

Synthesis of essential molecules

Magnesium is required for a number of steps during synthesis of deoxyribonucleic acid (DNA), ribonucleic acid (RNA), and proteins. Several enzymes participating in the synthesis of carbohydrates and lipids require magnesium for their activity. Glutathione, an important antioxidant, requires magnesium for its synthesis (3).

Structural roles

Magnesium plays a structural role in bone, cell membranes, and chromosomes (3).

Ion transport across cell membranes

Magnesium is required for the active transport of ions like potassium and calcium across cell membranes. Through its role in ion transport systems, magnesium affects the conduction of nerve impulses, muscle contraction, and normal heart rhythm (3).

Cell signaling

Cell signaling requires MgATP for the phosphorylation of proteins and the formation of the cell-signaling molecule, cyclic adenosine monophosphate (cAMP). cAMP is involved in many processes, including the secretion of parathyroid hormone (PTH) from the parathyroid glands (see the articles on Vitamin D and Calcium for additional discussions regarding the role of PTH) (3).

Cell migration

Calcium and magnesium levels in the fluid surrounding cells affect the migration of a number of different cell types. Such effects on cell migration may be important in wound healing (3).

Nutrient interactions

Zinc

High doses of zinc in supplemental form apparently interfere with the absorption of magnesium. One study reported that zinc supplements of 142 mg/day in healthy adult males significantly decreased magnesium absorption and disrupted magnesium balance (the difference between magnesium intake and magnesium loss) (4).

Fiber

Large increases in the intake of dietary fiber have been found to decrease magnesium utilization in experimental studies. However, the extent to which dietary fiber affects magnesium nutritional status in individuals with a varied diet outside the laboratory is not clear (2, 3).

Protein

Dietary protein may affect magnesium absorption. One study in adolescent boys found that magnesium absorption was lower when protein intake was less than 30 grams/day, and higher protein intakes (93 grams/day vs. 43 grams/day) were associated with improved magnesium absorption in adolescents (5).

Vitamin D and calcium

The active form of vitamin D (calcitriol) may slightly increase intestinal absorption of magnesium (6). However, it is not clear whether magnesium absorption is calcitriol-dependent as is the absorption of calcium and phosphate. High calcium intake has not been found to affect magnesium balance in most studies. Inadequate blood magnesium levels are known to result in low blood calcium levels, resistance to parathyroid hormone (PTH) action, and resistance to some of the effects of vitamin D (2, 3).

Deficiency

Magnesium deficiency in healthy individuals who are consuming a balanced diet is quite rare because magnesium is abundant in both plant and animal foods and because the kidneys are able to limit urinary excretion of magnesium when intake is low. The following conditions increase the risk of magnesium deficiency (1):

  • Gastrointestinal disorders: Prolonged diarrhea, Crohn’s diseasemalabsorption syndromesceliac disease, surgical removal of a portion of the intestine, and intestinal inflammation due to radiation may all lead to magnesium depletion.
  • Renal disorders (magnesium wasting): Diabetes mellitus and long-term use of certain diuretics (see Drug interactions) may result in increased urinary loss of magnesium. Multiple other medications can also result in renal magnesium wasting (3).
  • Chronic alcoholism: Poor dietary intake, gastrointestinal problems, and increased urinary loss of magnesium may all contribute to magnesium depletion, which is frequently encountered in alcoholics.
  • Age: Several studies have found that elderly people have relatively low dietary intakes of magnesium (7, 8). Intestinal magnesium absorption tends to decrease with age and urinary magnesium excretion tends to increase with age; thus, suboptimal dietary magnesium intake may increase the risk of magnesium depletion in the elderly (2).

Although severe magnesium deficiency is uncommon, it has been induced experimentally. When magnesium deficiency was induced in humans, the earliest sign was decreased serum magnesium levels (hypomagnesemia). Over time, serum calcium levels also began to decrease (hypocalcemia) despite adequate dietary calcium. Hypocalcemia persisted despite increased secretion of parathyroid hormone (PTH), which regulates calcium homeostasis. Usually, increased PTH secretion quickly results in the mobilization of calcium from bone and normalization of blood calcium levels. As the magnesium depletion progressed, PTH secretion diminished to low levels. Along with hypomagnesemia, signs of severe magnesium deficiency included hypocalcemia, low serum potassium levels (hypokalemia), retention of sodium, low circulating levels of PTH, neurological and muscular symptoms (tremor, muscle spasms, tetany), loss of appetite, nausea, vomiting, and personality changes (3).

The Recommended Dietary Allowance (RDA)

In 1997, the Food and Nutrition Board of the Institute of Medicine increased the recommended dietary allowance (RDA) for magnesium, based on the results of recent, tightly controlled balance studies that utilized more accurate methods of measuring magnesium (2Table 1). Balance studies are useful for determining the amount of a nutrient that will prevent deficiency; however, such studies provide little information regarding the amount of a nutrient required for chronic disease prevention or optimum health.

Table 1. Recommended Dietary Allowance (RDA) for Magnesium
Life Stage Age Males (mg/day) Females (mg/day)
Infants 0-6 months 30 (AI) 30 (AI)
Infants 7-12 months 75 (AI) 75 (AI)
Children 1-3 years 80 80
Children 4-8 years 130 130
Children 9-13 years 240 240
Adolescents 14-18 years 410 360
Adults 19-30 years 400 310
Adults 31 years and older 420 320
Pregnancy 18 years and younger 400
Pregnancy 19-30 years 350
Pregnancy 31 years and older 360
Breast-feeding 18 years and younger 360
Breast-feeding 19-30 years 310
Breast-feeding 31 years and older 320

Disease Prevention

Metabolic syndrome

Low magnesium intakes have been associated with the diagnosis of metabolic syndrome. The concomitant presentation of several metabolic disorders in an individual, including dyslipidemia, hypertensioninsulin resistance, and obesity, increases the risk for type 2 diabetes mellitus and cardiovascular disease. Systemic inflammation, which contributes to the development of metabolic disorders, has been inversely correlated with magnesium intakes in a cross-sectional study of 11,686 middle-aged women; the lowest prevalence of metabolic syndrome was found in the group of women with the highest quintile of magnesium intakes (median intake, 422 mg/day) (9).

Hypertension (high blood pressure)

Large epidemiological study studies suggest a relationship between magnesium and blood pressure. However, the fact that foods high in magnesium (fruit, vegetables, whole grains) are frequently high in potassium and dietary fiber has made it difficult to evaluate the independent effects of magnesium on blood pressure. A prospective cohort study of more than 30,000 male health professionals found an inverse association between dietary fiber, potassium, and magnesium and the development of hypertension over a four-year period (10). In a similar study of more than 40,000 female registered nurses, dietary fiber and dietary magnesium were each inversely associated with systolic and diastolic blood pressures in those who did not develop hypertension over the four-year study period, but neither dietary fiber nor magnesium was related to the risk of developing hypertension (11). The Atherosclerosis Risk in Communities (ARIC) study examined dietary magnesium intake, magnesium blood levels, and risk of developing hypertension in 7,731 men and women over a six-year period (12). The risk of developing hypertension in both men and women decreased as serummagnesium levels increased, but the trend was statistically significant only in women.

However, circulating magnesium represents only 1% of total body stores and is tightly regulated; thus, serum magnesium levels might not best reflect magnesium status. A recent prospective study that followed 5,511 men and women for a median period of 7.6 years found that the highest levels of urinary magnesium excretion corresponded to a 25% reduction in risk of hypertension, but plasma magnesium levels were not correlated with risk of hypertension (13). In cohort of 28,349 women followed for 9.3 years, the risk of hypertension was 7% lower for those with the highest magnesium intakes (434 mg/day vs. 256 mg/day) (14). The relationship between magnesium intake and risk of hypertension suggests that magnesium supplementation might play a role in preventing hypertension; however, randomized controlled trials are needed to assess whether supplemental magnesium might help prevent hypertension in high-risk individuals.

Diabetes mellitus

Public health concerns regarding the epidemics of obesity and type 2 diabetes mellitus and the prominent role of magnesium in glucose metabolism have led scientists to investigate the relationship between magnesium intake and type 2 diabetes mellitus. A prospective study that followed more than 25,000 individuals, 35 to 65 years of age, for seven years found no difference in incidence of diabetes mellitus when comparing the highest (377 mg/day) quintile of magnesium intake to the lowest (268 mg/day) (15). However, inclusion of this study in a meta-analysis of eight cohort studies showed that risk of type 2 diabetes was inversely correlated with magnesium intake (15). A second meta-analysis found that an increase of 100 mg/day in magnesium intake was associated with a 15% decrease in the risk of developing type 2 diabetes (16). The most recent meta-analysis of 13 observational studies, published in the last 15 years and including almost 540,000 individuals and 24,500 new cases of diabetes, found higher magnesium intakes were associated with a lower risk of diabetes (17).

Insulin resistance, which is characterized by alterations in both insulin secretion by the pancreas and insulin action on target tissues, has been linked to magnesium deficiency. An inverse association between magnesium intakes and fasting insulin levels was evidenced in a meta-analysis of 11 cohort studies that followed more than 36,000 participants without diabetes (18). It is thought that pancreatic β-cells, which regulate insulin secretion and glucose tolerance, could become less responsive to changes in insulin sensitivity in magnesium-deficient subjects (19). A randomizeddouble-blindplacebo-controlled trial, which enrolled 97 individuals (without diabetes and with normal blood pressure) with significant hypomagnesemia (serum magnesium level ≤0.70 mmoles/L), showed that daily consumption of 638 mg of magnesium (from a solution of magnesium chloride) for three months improved the function of pancreatic β-cells, resulting in lower fasting glucose and insulin levels (20). Increased insulin sensitivity also accompanied the correction of magnesium deficiency in patients diagnosed with insulin resistance but not diabetes (21). Another study found that supplementation with 365 mg/day of magnesium (from magnesium aspartate hydrochloride) for six months reduced insulin resistance in 47 overweight individuals even though they displayed normal values of serum and intracellular magnesium (22). This suggests that magnesium might have additive effects on glucose tolerance and insulin sensitivity that go beyond the normalization of physiologic serum concentrations in deficient individuals.

Cardiovascular disease

A number of studies have found decreased mortality from cardiovascular disease in populations who routinely consume “hard” water. Hard (alkaline) water is generally high in magnesium but may also contain more calcium and fluoride than “soft” water, making the cardioprotective effects of hard water difficult to attribute to magnesium alone (23). One large prospective study (almost 14,000 men and women) found a significant trend for increasing serum magnesium levels to be associated with decreased risk of coronary heart disease (CHD) in women but not in men (24). However, the risk of CHD in the lowest quartile of dietary magnesium intake was not significantly higher than the risk in the highest quartile in men or women. This prospective study was included in a meta-analysis of 14 studies that found a 22% lower risk of CHD (but not fatal CHD) per 200 mg/day incremental intake in dietary magnesium (25). In another prospective study, which followed nearly 90,000 female nurses for 28 years, women in the highest quintile of magnesium intake had a 39% lower risk of fatal myocardial infarction (but not nonfatal myocardial infarction) compared to those in the lowest quintile (>342 mg/day versus <246 mg/day) (26). Higher magnesium intakes were associated with an 8%-11% reduction in stroke risk in two meta-analyses of prospective studies, each including over 240,000 participants (27, 28). Additionally, a meta-analysis of 13 prospective studies in over 475,000 participants reported that the risk of total cardiovascular events, including stroke, nonfatal myocardial infarction, and CHD, was 15% lower in individuals with higher intakes of magnesium (29). Finally, a meta-analysis of six prospective studies found no association between magnesium intake and cardiovascular mortality risk (30). However, a recent prospective study that followed 3,910 subjects for 10 years found significant correlations between hypomagnesemia and all-cause mortality, including cardiovascular-related mortality (31). Presently, well-controlled intervention trials are required to assess the benefit of magnesium supplementation in the prevention of cardiovascular disease.

Stroke

Occurrence of hypomagnesemia has been reported in patients who suffered from a subarachnoid hemorrhage caused by the rupture of a cerebral aneurysm (32). Poor neurologic outcomes following an aneurysmal subarachnoid hemorrhage (aSAH) have been linked to inappropriate calcium-dependent contraction of arteries (known as cerebral arterial vasospasm), leading to delayed cerebral ischemia (33). Magnesium sulfate is a calcium antagonist and potent vasodilator that has been considered in the prevention of vasospasm after aSAH. Several randomized controlled trials have assessed the effect of intravenous (IV) magnesium sulfate infusions. A meta-analysis of nine randomized controlled trials found that magnesium therapy after aSAH significantly reduced vasospasm but failed to prevent neurologic deterioration or decrease the risk of death (34). The most recent meta-analysis of 13 trials in 2,413 aSAH patients concluded that the infusion of magnesium sulfate had no benefits in terms of neurologic outcome and mortality, despite a reduction in the incidence of delayed cerebral ischemia (35). At present, the data advise against the use of intravenous magnesium in clinical practice for aSAH patients after normalization of their magnesium status.

Complications of heart surgery

Atrial arrhythmia is a condition defined as the occurrence of persistent heart rate abnormalities that often complicate the recovery of patients after cardiac surgery. The use of magnesium in the prophylaxis of postoperative atrial arrhythmia after coronary artery bypass grafting has been evaluated as a sole or adjunctive agent to classical antiarrhythmic molecules (namely, β-blockers and amiodarone) in several prospective, randomized controlled trials. A meta-analysis of 21 intervention studies showed that intravenous magnesium infusions could significantly reduce postoperative atrial arrhythmia in treated compared to untreated patients (36). However, a meta-analysis of five randomized controlled trials concerned with rhythm-control prophylaxis showed that intravenous magnesium added to β-blocker treatment did not decrease the risk of atrial arrhythmia compared to β-blocker alone and was associated with more adverse effects (bradycardia and hypotension) (37). Presently, the findings support the use of β-blockers and amiodarone, but not magnesium, in patients with contraindications to first-line antiarrhythmics.

Osteoporosis

Although decreased bone mineral density (BMD) is the primary feature of osteoporosis, other osteoporotic changes in the collagenous matrix and mineral components of bone may result in bones that are brittle and more susceptible to fracture. Magnesium comprises about 1% of bone mineral and is known to influence both bone matrix and bone mineral metabolism. As the magnesium content of bone mineral decreases, apatite crystals of bone become larger and more brittle. Some studies have found lower magnesium content and larger apatite crystals in bones of women with osteoporosis compared to women without the disease (38). Inadequate serum magnesium levels are known to result in low serum calcium levels, resistance to parathyroid hormone (PTH) action, and resistance to some of the effects of vitamin D (calcitriol), all of which can lead to increased bone loss (see the articles on Vitamin D and Calcium). A study of over 900 elderly men and women found that higher dietary magnesium intakes were associated with increased BMD at the hip in both men and women. However, because magnesium and potassium are present in many of the same foods, the effect of dietary magnesium could not be isolated (39). A cross-sectional study in over 2,000 elderly individuals reported that magnesium intake was positively associated with total-body BMD in white men and women but not in black men and women (40). More recently, a large cohort study conducted in almost two-thirds of the Norwegian population found the level of magnesium in drinking water was inversely correlated with risk of hip fracture (41).

Few studies have addressed the effect of magnesium supplementation on BMD or osteoporosis in humans. In a small group of postmenopausal women with osteoporosis, magnesium supplementation of 750 mg/day for the first six months followed by 250 mg/day for 18 more months resulted in increased BMD at the wrist after one year, with no further increase after two years of supplementation (42). A study in postmenopausal women who were taking estrogen replacement therapy and also a multivitamin found that supplementation with an additional 500 mg/day of magnesium and 600 mg/day of calcium resulted in increased BMD at the heel compared to postmenopausal women receiving only estrogen replacement therapy (43). Evidence is not yet sufficient to suggest that supplemental magnesium could be recommended in the prevention of osteoporosis unless normalization of serum magnesium levels is required. Moreover, it appears that high magnesium levels could be harmful to skeletal health by interfering with the action of the calciotropic hormones, PTH and calcitriol (44). Presently, the potential for increased magnesium intake to influence calcium and bone metabolism warrants more research with particular attention to its role in the prevention and treatment of osteoporosis.

Disease Treatment

The use of pharmacologic doses of magnesium to treat specific diseases is discussed below. Although many of the cited studies utilized supplemental magnesium at doses considerably higher than the tolerable upper intake level (UL), which is 350 mg/day set by the Food and Nutrition Board (see Safety), it is important to note that these studies were all conducted under medical supervision. Because of the potential risks of high doses of supplemental magnesium, especially in the presence of impaired kidney function, any disease treatment trial using magnesium doses higher than the UL should be conducted under medical supervision.

Pregnancy complications

Preeclampsia and eclampsia

Preeclampsia and eclampsia are pregnancy-specific conditions that may occur anytime after 20 weeks of pregnancy through six weeks following birth. Approximately 7% of pregnant women in the US develop preeclampsia-eclampsia. Preeclampsia (sometimes called toxemia of pregnancy) is defined as the presence of elevated blood pressure (hypertension), protein in the urine, and severe swelling (edema) during pregnancy. Eclampsia occurs with the addition of seizures to the triad of symptoms and is a significant cause of perinatal and maternal death (45). Although cases of preeclampsia are at high risk of developing eclampsia, one-quarter of eclamptic women do not initially exhibit preeclamptic symptoms (46). For many years, high-dose intravenous magnesium sulfate has been the treatment of choice for preventing eclamptic seizures that may occur in association with preeclampsia-eclampsia late in pregnancy or during labor (47, 48). A systematic review of seven randomized trials compared the administration of magnesium sulfate with diazepam (a known anticonvulsant) treatment on perinatal outcomes in 1,396 women with eclampsia. Risks of recurrent seizures and maternal death were significantly reduced by the magnesium regimen compared to diazepam. Moreover, the use of magnesium for the care of eclamptic women resulted in newborns with higher Apgar scores; there was no significant difference in the risk of preterm birth and perinatal mortality (46). Additional research has confirmed that infusion of magnesium sulfate should always be considered in the management of preeclampsia and eclampsia to prevent initial and recurrent seizures (49).

Perinatal neuroprotection

While intravenous magnesium sulfate is included in the medical care of preeclampsia and eclampsia, the American College of Obstetricians and Gynecologists and the Society for Maternal-Fetal Medicine support its use in two additional situations: specific conditions of short-term prolongation of pregnancy and neuroprotection of the fetus in anticipated premature delivery (50). The relationship between magnesium sulfate and risk of cerebral damage in premature infants has been assessed in observational studies. A meta-analysis of six case-control and five prospective cohort studies showed that the use of magnesium significantly reduced the risk of cerebral palsy, as well as mortality (51). However, the high degree of heterogeneity among the cohort studies and the fact that corticosteroid exposure (which is known to decrease antenatal mortality) was higher in the cases of children exposed to magnesium compared to controls imply a cautious interpretation of the results. However, a meta-analysis of five randomized controlled trials, which included a total of 6,145 babies, found that magnesium therapy given to mothers delivering before term decreased the risk of cerebral palsy and gross motor dysfunction, without modifying the risk of other neurologic impairments or mortality in early childhood (52). Another meta-analysis conducted on five randomized controlled trials found that intravenous magnesium administration to newborns who suffered from perinatal asphyxia could be beneficial in terms of short-term neurologic outcomes, although there was no effect on mortality (53). Nevertheless, additional trials are needed to evaluate the long-term benefits of magnesium in pediatric care.

Cardiovascular disease

Hypertension (high blood pressure)

While results from intervention studies have not been entirely consistent (2), the latest review of the data highlighted a therapeutic benefit of magnesium supplements in treating hypertension. A recent meta-analysis examined 22 randomizedplacebo-controlled trials of magnesium supplementation conducted in 1,173 individuals with either a normal blood pressure (normotensive) or hypertension, both treated or untreated with medications. Oral supplementation with magnesium (mean dose of 410 mg/day; range of 120 to 973 mg/day) for a median period of 11.3 months significantly reduced systolic blood pressure by 2-3 mm Hg and diastolic blood pressure by 3-4 mm Hg (54); a greater effect was seen at higher doses (≥370 mg/day). The results of 19 of the 22 trials included in the meta-analysis were previously reviewed together with another 25 intervention studies (55). The systematic examination of these 44 trials suggested a blood pressure-lowering effect associated with supplemental magnesium in hypertensive but not in normotensive individuals. Magnesium doses required to achieve a decrease in blood pressure appeared to depend on whether subjects with high blood pressure were treated with antihypertensive medications, including diuretics. Intervention trials on treated subjects showed a reduction in hypertension with magnesium doses from 243 mg/day to 486 mg/day, whereas untreated patients required doses above 486 mg/day to achieve a significant decrease in blood pressure. While oral magnesium supplementation may be helpful in hypertensive individuals who are depleted of magnesium due to chronic diuretic use and/or inadequate dietary intake (56), several dietary factors play a role in hypertension. For example, adherence to the DASH diet — a diet rich in fruit, vegetables, and low-fat dairy and low in saturated and total fats — has been linked to significant reductions in systolic and diastolic blood pressures (57). See the article in the Spring/Summer 2009 Research Newsletter, Dietary and Lifestyle Strategies to Control Blood Pressure.

Myocardial infarction (heart attack)

Results of a meta-analysis of randomizedplacebo-controlled trials indicated that an intravenous (IV) magnesium infusion given early after suspected myocardial infarction(MI) could decrease the risk of death. The most influential study included in the meta-analysis was a randomized, placebo-controlled trial in 2,316 patients that found a significant reduction in mortality (7.8% all-cause mortality in the experimental group vs. 10.3% all-cause mortality in the placebo group) in the group of patients given intravenous magnesium sulfate within 24 hours of suspected myocardial infarction (58). Follow-up from one to five years after treatment revealed that the mortality from cardiovascular disease was 21% lower in the magnesium treated group (59). However, a larger placebo-controlled trial that included more than 58,000 patients found no significant reduction in five-week mortality in patients treated with intravenous magnesium sulfate within 24 hours of suspected myocardial infarction, resulting in controversy regarding the efficacy of the treatment (60). A US survey of the treatment of more than 173,000 patients with acute MI found that only 5% were given IV magnesium in the first 24 hours after MI, and that mortality was higher in patients treated with IV magnesium compared to those not treated with magnesium (61). The most recent systematic review of 26 clinical trials, including 73,363 patients, concluded that IV magnesium likely does not reduce mortality following MI and thus should not be utilized as a treatment (62). Thus, the use of IV magnesium sulfate in the therapy of acute MI remains controversial.

Endothelial dysfunction

Vascular endothelial cells line arterial walls where they are in contact with the blood that flows through the circulatory system. Normally functioning vascular endothelium promotes vasodilation when needed, for example, during exercise, and inhibits the formation of blood clots. Conversely, endothelial dysfunction results in widespread vasoconstriction and coagulation abnormalities. In cardiovascular disease, chronic inflammation is associated with the formation of atherosclerotic plaques in arteries. Atherosclerosis impairs normal endothelial function, increasing the risk of vasoconstriction and clot formation, which may lead to heart attack or stroke (reviewed in 63). Research studies have indicated that pharmacologic doses of oral magnesium may improve endothelial function in individuals with cardiovascular disease. A randomizeddouble-blindplacebo-controlled trial in 50 men and women with stable coronary artery disease found that six months of oral magnesium supplementation (730 mg/day) resulted in a 12% improvement in flow-mediated vasodilation compared to placebo (64). In other words, the normal dilation response of the brachial (arm) artery to increased blood flow was improved. Magnesium supplementation also resulted in increased exercise tolerance during an exercise stress test compared to placebo. In another study of 42 patients with coronary artery disease who were already taking low-dose aspirin (an inhibitor of platelet aggregation), three months of oral magnesium supplementation (800 to 1,200 mg/day) resulted in an average 35% reduction in platelet-dependent thrombosis, a measure of the propensity of blood to clot (65). Additionally, a study in 657 women participating in the Nurses’ Health Study reported that dietary magnesium intake was inversely associated with E-selectin, a marker of endothelial dysfunction (66)In vitro studies using human endothelial cells have provided mechanistic insights into the association of low magnesium concentrations, chronic inflammation, and endothelial dysfunction (67). Finally, since magnesium can function as a calcium antagonist, it has been suggested that it could be utilized to slow down or reverse the calcification of vessels observed in patients with chronic kidney disease. The atherosclerotic process is often accelerated in these subjects, and patients with chronic kidney disease have higher rates of cardiovascular-related mortality compared to the general population (68). Additional studies are needed to assess whether magnesium may be of benefit in improving endothelial function in individuals at high risk for cardiovascular disease.

Diabetes mellitus

Magnesium depletion is commonly associated with both insulin-dependent (type 1) and non-insulin dependent (type 2) diabetes mellitus. Reduced serum levels of magnesium (hypomagnesemia) have been reported in 13.5% to 47.7% of individuals with type 2 diabetes (69). One cause of the depletion may be increased urinary loss of magnesium, which results from increased urinary excretion of glucose that accompanies poorly controlled diabetes. Magnesium depletion has been shown to increase insulin resistance in a few studies and may adversely affect blood glucose control in diabetes (70). One study reported that dietary magnesium supplements (390 mg/day of elemental magnesium for four weeks) improved glucose tolerance in elderly individuals (71). Another small study in nine patients with type 2 diabetes reported that supplemental magnesium (300 mg/day for 30 days), in the form of a liquid, magnesium-containing salt solution, improved fasting insulin levels but did not affect fasting glucose levels (72). Yet, the most recent meta-analysis of nine randomizeddouble-blind, controlled trials concluded that oral supplemental magnesium may lower fasting plasma glucose levels in individuals with diabetes (73). One randomized, double-blind, placebo-controlled study in 63 individuals with type 2 diabetes and hypomagnesemia found that those taking an oral magnesium chloride solution (638 mg/day of elemental magnesium) for 16 weeks had improved measures of insulin sensitivity and glycemic control compared to those taking a placebo (74). Large-scale, well-controlled studies are needed to determine whether magnesium supplementation has any long-term therapeutic benefit in patients with type 2 diabetes. However, correcting existing magnesium deficiencies may improve glucose metabolism and insulin sensitivity in those with diabetes.

Migraine headaches

Individuals who suffer from recurrent migraine headaches have lower intracellular magnesium levels (demonstrated in both red blood cells and white blood cells) than individuals who do not experience migraines (75). Additionally, the incidence of ionized magnesium deficiency has been found to be higher in women with menstrualmigraine compared to women who don’t experience migraines with menstruation (76). Oral magnesium supplementation has been shown to increase intracellular magnesium levels in individuals with migraines, leading to the hypothesis that magnesium supplementation might be helpful in decreasing the frequency and severity of migraine headaches. Two early placebo-controlled trials demonstrated modest decreases in the frequency of migraine headaches after supplementation with 600 mg/day of magnesium (75, 77). Another placebo-controlled trial in 86 children with frequent migraine headaches found that oral magnesium oxide (9 mg/kg body weight/day) reduced headache frequency over the 16-week intervention (78). However, there was no reduction in the frequency of migraine headaches with 485 mg/day of magnesium in another placebo-controlled study conducted in 69 adults suffering migraine attacks (79). The efficiency of magnesium absorption varies with the type of oral magnesium complex, and this might explain the conflicting results. Although no serious adverse effects were noted during these migraine headache trials, 19% to 40% of individuals taking the magnesium supplements have reported diarrhea and gastric (stomach) irritation.

The efficacy of magnesium infusions was also investigated in a randomized, single-blind, placebo-controlled, cross-over trial of 30 patients with migraine headaches (80). The administration of 1 gram of intravenous (IV) magnesium sulfate ended the attacks, abolished associated symptoms, and prevented recurrence within 24 hours in nearly 90% of the subjects. While this promising result was confirmed in another trial (81), two additional randomized, placebo-controlled studies found that magnesium sulfate was less effective than other molecules (e.g., metoclopramide) in treating migraines (82, 83). The most recent meta-analysis of five randomized, double-blind, controlled trials reported no beneficial effect of IV magnesium for migraine in adults (84). However, the effect of magnesium should be examined in larger studies targeting primarily migraine sufferers with hypomagnesemia (85).

Asthma

The occurrence of hypomagnesemia may be greater in patients with asthma than in individuals without asthma (86). Several clinical trials have examined the effect of intravenous (IV) magnesium infusions on acute asthmatic attacks. One double-blindplacebo-controlled trial in 38 adults with acute asthma, who did not respond to initial treatment in the emergency room, found improved lung function and decreased likelihood of hospitalization when IV magnesium sulfate was infused compared to a placebo (87). However, another placebo-controlled, double-blind study in 48 adults reported that IV infusion of magnesium sulfate did not improve lung function in patients experiencing an acute asthma attack (88). A systematic review of seven randomized controlled trials (five adult and two pediatric) concluded that IV magnesium sulfate is beneficial in patients with severe, acute asthma (89). In addition, a meta-analysis of five randomized placebo-controlled trials, involving 182 children with severe asthma, found that IV infusion of magnesium sulfate was associated with a 71% reduction in the need for hospitalization (90). In the most recent meta-analysis of 16 randomized controlled trials (11 adult and 5 pediatric), IV magnesium sulfate treatment was associated with a significant improvement of respiratory function in both adults and children with acute asthma treated with β2-agonists and systemic steroids (91). At present, available evidence indicates that IV magnesium infusion is an efficacious treatment for severe, acute asthma; however, oral magnesium supplementation is of no known value in the management of chronic asthma (92-94). Nebulized, inhaled magnesium for treating asthma requires further investigation. A meta-analysis of eight randomized controlled trials in asthmatic adults showed that nebulized, inhaled magnesium sulfate had benefits with respect to improved lung function and decreased hospital admissions (91). However, a recent systematic review of 16 randomized controlled trials, including adults, children, or both, found little evidence that inhaled magnesium sulfate, along with a β2-agonist, improved pulmonary function in patients with acute asthma (95).

Sources

Food sources

A large US national survey indicated that average magnesium intake is about 350 mg/day for men and about 260 mg/day for women — significantly below the current recommended dietary allowance (RDA). Magnesium intakes were even lower in men and women over 50 years of age (8). Such findings suggest that marginal magnesium deficiency may be relatively common in the US.

Since magnesium is part of chlorophyll, the green pigment in plants, green leafy vegetables are rich in magnesium. Unrefined grains (whole grains) and nuts also have high magnesium content. Meats and milk have an intermediate content of magnesium, while refined foods generally have the lowest. Water is a variable source of intake; harder water usually has a higher concentration of magnesium salts (2). Some foods that are relatively rich in magnesium are listed in Table 2, along with their magnesium content in milligrams (mg). For more information on the nutrient content of foods, search the USDA food composition database.

Table 2. Some Food Sources of Magnesium
Food Serving Magnesium (mg)
Cereal, all bran ½ cup 112
Cereal, oat bran ½ cup dry 96
Brown rice, medium-grain, cooked 1 cup 86
Fish, mackerel, cooked 3 ounces 82
Spinach, frozen, chopped, cooked ½ cup 78
Almonds 1 ounce (23 almonds) 77
Swiss chard, chopped, cooked ½ cup 75
Lima beans, large, immature seeds, cooked ½ cup 63
Cereal, shredded wheat 2 biscuits 61
Peanuts 1 ounce 48
Molasses, blackstrap 1 tablespoon 48
Hazelnuts 1 ounce (21 hazelnuts) 46
Okra, frozen, cooked ½ cup 37
Milk, 1% fat 8 fluid ounces 34
Banana 1 medium 32

Supplements

Magnesium supplements are available as magnesium oxide, magnesium gluconate, magnesium chloride, and magnesium citrate salts, as well as a number of amino acidchelates, including magnesium aspartate. Magnesium hydroxide is used as an ingredient in several antacids (96).

Safety

Toxicity

Adverse effects have not been identified from magnesium occurring naturally in food. However, adverse effects from excess magnesium have been observed with intakes of various magnesium salts (i.e., supplemental magnesium) (6). The initial symptom of excess magnesium supplementation is diarrhea — a well-known side effect of magnesium that is used therapeutically as a laxative. Individuals with impaired kidney function are at higher risk for adverse effects of magnesium supplementation, and symptoms of magnesium toxicity have occurred in people with impaired kidney function taking moderate doses of magnesium-containing laxatives or antacids. Elevated serum levels of magnesium (hypermagnesemia) may result in a fall in blood pressure (hypotension). Some of the later effects of magnesium toxicity, such as lethargy, confusion, disturbances in normal cardiac rhythm, and deterioration of kidney function, are related to severe hypotension. As hypermagnesemia progresses, muscle weakness and difficulty breathing may occur. Severe hypermagnesemia may result in cardiac arrest (2, 3). The Food and Nutrition Board (FNB) of the Institute of Medicine set the tolerable upper intake level (UL) for magnesium at 350 mg/day (Table 3); this UL represents the highest level of daily supplemental magnesium intake likely to pose no risk of diarrhea or gastrointestinal disturbance in almost all individuals. The FNB cautions that individuals with renal impairment are at higher risk for adverse effects from excess supplemental magnesium intake. However, the FNB also notes that there are some conditions that may warrant higher doses of magnesium under medical supervision (2).

Table 3. Tolerable Upper Intake Level (UL) for Supplemental Magnesium
Age Group UL (mg/day)
Infants 0-12 months Not possible to establish*
Children 1-3 years 65
Children 4-8 years 110
Children 9-13 years 350
Adolescents 14-18 years 350
Adults 19 years and older 350
*Source of intake should be from food and formula only.

Drug interactions

Magnesium interferes with the absorption of digoxin (a heart medication), nitrofurantoin (an antibiotic), and certain anti-malarial drugs, which could potentially reduce drug efficacy. Bisphosphonates (e.g., alendronate and etidronate), which are drugs used to treat osteoporosis, and magnesium should be taken two hours apart so that the absorption of the bisphosphonate is not inhibited. Magnesium has also been found to reduce the efficacy of chlorpromazine (a tranquilizer), penicillamine, oral anticoagulants, and the quinolone and tetracycline classes of antibiotics. Because intravenous magnesium has increased the effects of certain muscle-relaxing medications used during anesthesia, it is advisable to let medical staff know if you are taking oral magnesium supplements, laxatives, or antacids prior to surgical procedures. High doses of furosemide (Lasix) and some thiazide diuretics (e.g., hydrochlorothiazide), if taken for extended periods, may result in magnesium depletion (96, 97). Moreover, long-term use (three months or longer) of proton-pump inhibitors (drugs used to reduce the amount of stomach acid) may increase the risk of hypomagnesemia (98, 99). Many other medications may also result in renal magnesium loss (3).

Linus Pauling Institute Recommendation

The Linus Pauling Institute supports the latest RDA for magnesium intake (400-420 mg/day for men and 310-320 mg/day for women). Following the Linus Pauling Institute recommendation to take a daily multivitamin/mineral supplement may ensure an intake of at least 100 mg of magnesium/day. Few multivitamin/mineral supplements contain more than 100 mg of magnesium due to its bulk. Because magnesium is plentiful in foods, eating a varied diet that provides green vegetables, whole grains, and nuts daily should provide the rest of an individual’s magnesium requirement.

Older adults (>50 years)

Older adults are less likely than younger adults to consume enough magnesium to meet their needs and should therefore take care to eat magnesium-rich foods in addition to taking a multivitamin/mineral supplement daily. Since older adults are more likely to have impaired kidney function, they should avoid taking more than 350 mg/day of supplemental magnesium without medical consultation (see Safety).

magnesium-flashcard

 

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William Jamieson is only 23, but he’s already spent almost one-third of his life battling severe depression.

Once a top student and athlete with a large group of friends, the young Ottawa man fell into a depression at age 16 that he couldn’t shake.

“It got pretty bleak,” he says. “In terms of energy, I just couldn’t get out of bed. I couldn’t eat. I didn’t have the energy to eat. I was wasting away.”

“I kind of kept myself in the dark. That goes to how you see the world,” he adds.

He tried at least 10 medications and received electric shock therapy — but nothing worked.

Watching his son sink further into his depression left William’s father Charles desperate to help.

“There was nothing more they (the doctors) could do, and as a parent, that is not what you want to hear, because the depths of William’s depression were as dark and black as you can imagine,” Charles says.

Fearing for his son’s life, the elder Jamieson went online.

“I typed in Google: ‘breakthrough depression treatments,’ and ‘ketamine’ came up,” he says.

Though probably best known as the party drug “Special K,” ketamine has been used as an anesthetic and painkiller for decades. But in recent years, it’s been explored as a treatment for depression.

Researchers say the drug can lift depression and suicidal thoughts in patients with even one treatment.

Doctors at the Royal Ottawa Mental Health Centre have been using intravenous ketamine on patients with treatment-resistant depression and say they are seeing promising results.

Ketamine isn’t approved by U.S. regulators to treat depression, but hundreds of private health clinics have been offering it off-label. Jamieson now travels from his home in Ottawa to New York City every six weeks to get infusion from anesthesiologist Dr. Glen Brooks.

The darkness began to lift two days after the first treatment, William says.

“It feels like there is a loosening of the fist that is inside of your head.”

His father Charles grows emotional thinking about that weekend.

“I say, ‘Will, how are you feeling?’ He says, ‘Dad, it is gone. The depression is gone. The colours are brighter.’ I will never forget those words. ‘The colour is brighter. The fog is gone,’” he says.

Dr. Brooks has used ketamine for 35 years to treat neuropathic pain. After reading research on using of ketamine for depression, he began to offer the drug to patients with long histories of post-traumatic stress disorder and other mood disorders, charging up to US$400 per infusion.

Many of his patients have tried multiple medications and electroshock therapy and have not responded.

“So this is generally more of a last stop than a first stop,” he explains.

He says the improvements are often rapid and dramatic.

“What patients report is a sense of calmness and wellbeing that comes over them,” he explains.

Dr. Brooks believes that for suicidal patients, “ketamine saves lives every day.”

“I don’t think anything is as effective as ketamine has been,” he says.

In Canada, many psychiatrists are excited to better understand how ketamine works in the brain, but others are urging patience until more is known about the drug’s possible side-effects, including elevated blood pressure, blurred vision, and bladder inflammation.

“We don’t know who is more prone to the side effects or indeed, the long-term consequences of the side effects,” says Dr. Sidney Kennedy, the Arthur Sommer Rotenberg Chair in Suicide and Depression Studies at St. Michael’s Hospital in Toronto.

But Dr. Brooks says patients should be able to access a drug that could save their lives.

“In my experience of treating over 1,500 patients, I see no reason for any patient to wait, especially if they are critically ill with their mood disorder,” he says.

Charles Jamieson thinks ketamine should be more widely available in medically supervised settings.  Until it is, he will pay for his son to get the drug in the U.S.

“I have got my son back and I know he will have the life that he wants to make. He has an opportunity that he would not have had without ketamine,” he says. “Without ketamine, it would have been a terrible, different story.”

 

The Fog Has Lifted <<<<<<<<<<<<<<<<<<<<<<<<LINK TO STORY

KETAMINE For Obsessive-Compulsive Disorder | Depression | 703-844-0184 | FAIRFAX, VA | LOUDON, VA| LORTON, VA | |Ketamine For Obsessive Compulsive Disorder| 22308 |22304

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CAll 703-844-0184 for an immediate appointment to evaluate you for a Ketamine infusion:

Ketaminealexandria.com    703-844-0184 Call for an infusion to treat your depression. PTSD, Anxiety, CRPS, or other pain disorder today.

email@novahealthrecovery.com  << Email for questions to the doctor

Ketamine center in Fairfax, Virginia    << Ketamine infusions

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Randomized Controlled Crossover Trial of Ketamine in
Obsessive-Compulsive Disorder: Proof-of-Concept

Ketamine for Obsessive-compulsive disorder  <ARTICLE

Ketamine has effectiveness on the short run when it comes to treating Obsessive-compulsive disorders:

Serotonin reuptake inhibitors (SRIs), the first-line pharmacological treatment for obsessive-compulsive disorder (OCD), have two
limitations: incomplete symptom relief and 2–3 months lag time before clinically meaningful improvement. New medications with faster
onset are needed. As converging evidence suggests a role for the glutamate system in the pathophysiology of OCD, we tested whether a
single dose of ketamine, a non-competitive N-methyl-D-aspartate (NMDA) glutamate receptor antagonist, could achieve rapid antiobsessional
effects. In a randomized, double-blind, placebo-controlled, crossover design, drug-free OCD adults (n ¼ 15) with near-constant
obsessions received two 40-min intravenous infusions, one of saline and one of ketamine (0.5 mg/kg), spaced at least 1-week
apart. The OCD visual analog scale (OCD-VAS) and the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) were used to assess OCD
symptoms. Unexpectedly, ketamine’s effects within the crossover design showed significant (po0.005) carryover effects (ie, lasting
longer than 1 week). As a result, only the first-phase data were used in additional analyses. Specifically, those receiving ketamine (n ¼ 8)
reported significant improvement in obsessions (measured by OCD-VAS) during the infusion compared with subjects receiving placebo
(n ¼ 7). One-week post-infusion, 50% of those receiving ketamine (n ¼ 8) met criteria for treatment response (X35% Y-BOCS
reduction) vs 0% of those receiving placebo (n ¼ 7). Rapid anti-OCD effects from a single intravenous dose of ketamine can persist for at
least 1 week in some OCD patients with constant intrusive thoughts. This is the first randomized, controlled trial to demonstrate that a
drug affecting glutamate neurotransmission can reduce OCD symptoms without the presence of an SRI and is consistent with a
glutamatergic hypothesis of OCD.

 

Ketamine is a noncompetitive antagonist of the NMDA
receptor (a type of glutamate receptor). Studies in patients
with unipolar and bipolar depression have found that a
single intravenous infusion of ketamine can have antidepressant
effects within 40 min of starting the infusion.
These effects persist for 3–18 days, long after the drug has
cleared the patient’s system (Berman et al, 2000;
Diazgranados et al, 2010a, b; Murrough et al, 2012; Valentine
et al, 2011; Zarate et al, 2006, 2012a). We treated an
unmedicated individual with OCD with ketamine (0.5 mg/kg
IV over 40 min) and found rapid anti-obsessional effects that
returned to baseline by 1-week post-infusion (Rodriguez
et al, 2011). Bloch et al (2012) conducted an open ketamine
trial in 10 subjects with OCD and found modest but
statistically significant improvement in OCD symptoms
over days 1–3 following ketamine infusion compared with
baseline; however, most subjects in this study were taking
multiple other medications at the time of infusion.

Ketamine IV for Depression Webinar | Ketamine Doctors | Ketamine for Depression | 703-844-0184 | Fairfax, Virginia 22304 |

NOVA Health Recovery  <<< Ketamine Treatment Center Fairfax, Virginia

CAll 703-844-0184 for an immediate appointment to evaluate you for a Ketamine infusion:

Ketaminealexandria.com    703-844-0184 Call for an infusion to treat your depression. PTSD, Anxiety, CRPS, or other pain disorder today.

email@novahealthrecovery.com  << Email for questions to the doctor

Ketamine center in Fairfax, Virginia    << Ketamine infusions

Ketamine – NOVA Ketamine facebook page – ketamine treatment for depression

facebook Ketamine page

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Ketamine Consultants Blog

 

Ask The Doctor: “Ketamine For Depression: Progress And Pitfalls” With Dr. Cristina Cusin, M.D.  < Webinar Link

Old Club Drug Is Repurposed Into Depression Treatment

A North Texas woman said a popular club drug and animal tranquilizer saved her from a life of depression and suicidal thoughts.

You may have heard of the drug before, as Special K on the street. it was designed as a horse tranquilizer, but Ketamine is gaining popularity as a treatment for depression.

Some doctors believe the controversial drug will become a game-changer in slowing the nation’s suicide epidemic.

Tiffany McCombie, a 40-year-old mother of one, knows what depression feels like in its darkest moments.

“I definitely was feeling what I would consider suicidal, not really wanting to live, not really wanting to die, just numb. That’s not a healthy place for me,” McCombie said.

She said she has lived with depression and Bipolar disorder for 30 years, has tried dozens of medications and supplements to combat it, but nothing, she said, has worked as well as the Ketamine infusions she gets at Rise Wellness Center.

She’s had six of them in ten months.”I had the right attitude and wanted to be healed and believing that it was going to happen for me and my brain. It happened. It cut down the mood stabilizers and antidepressants I had been on for years. I don’t take them at all,” she said.

More studies,like this one, are finding that Ketamine may be more effective and work faster than traditional antidepressants.

A local team of anesthesiologists had used the drug before, as an anaesthetic inside the operating room, but after seeing its potential to treat depression, they opened Rise Wellness Center, which specializes in Ketamine infusions.

“We get people that are so far down and so dark that we need this to get them out, to get them up, to get them moving. No drug does that like Ketamine,” said Dr.  Renaud Rodrigue, a pain management physician at Rise Wellness Center.

Experts say Ketamine can be dangerous, even deadly, if abused or taken in large doses.

Even though it’s not FDA-approved to treat depression, Dr. Rodrigue said, when given in small doses and in a clinical setting, 90 percent of his patients with severe depression reported long-term benefits.

Researchers at the University of Illinois published this study about how Ketamine may trigger a depression-fighting protein in the brain.

“This protein changed the game for us. We know now there’s something that is created just by the drug itself, which is staying in the central nervous system and is exerting this affect way beyond the duration of the drug,” said Dr. Rodrigue.

McCombie said Ketamine saved her life.

Could Ketamine conquer Treatment resistant depression?

A notorious drug that can cause dangerous hallucinations and even death when abused may be the key to treating severely depressed patients when used under proper physician care. UT Southwestern’s Dr. Lisa Monteggia has uncovered how the drug Ketamine works so rapidly and why patients are seeing success when other treatments have failed.

Transcript

{Video opens with music and pictures of UTSW patient Megan Joyce along with her mother and with her husband.}

Megan Joyce: Everything in my life seems great.

Narrator: Megan Joyce’s life may look picture perfect.

Megan: I graduated college. I got married. He’s an amazing person. He is incredibly supportive.

Narrator: But what these happy photos hide is a relentless inner struggle.

Megan: This is not something that I love to admit, but I fight for my life every single day.

Narrator: The 27-year-old has spent more than a decade battling severe depression. It triggers for no obvious reason.

Megan: They have defined my bipolar illness as treatment resistant.

Narrator: She says she tried every medication in the books … as well as checking into inpatient and outpatient treatment centers. Nothing worked. Until doctors at UT Southwestern Medical Center tried something bold. Ketamine infusion therapy.

Megan: I don’t know if I would be here without the Ketamine treatment. I drive from Austin every 10 days, and I come for treatment, and I’m in the hospital for about 5 hours, and then I go home the same day.

Narrator: Several studies show ketamine can quickly stabilize severely depressed patients. But it does come with risks.

Dr. Madhukar Trivedi: There is a risk for addiction so that if people start taking Ketamine on their own on the black market, then that can be very dangerous. There are toxic effects in the brain if you overdose. On the other hand, for patients who do well on this and are getting the right dose under the guidance of a physician, it can be life saving.

Megan: When I have the IV in, it’s for 40 minutes, and then I stay for 2 hours after because it is an anesthetic so they want to make sure you don’t have adverse side effects.

Narrator: Dr. Madukhar Trivedi is closely monitoring Joyce … as well as the work his colleagues are doing at the bench.

Dr. Trivedi: At UT Southwestern, we have the whole breadth of work being done. There are people working like Dr. Monteggia in basic research. Understanding the exact mechanism of how Ketamine changes molecularly and changes the mechanism of action.

Dr. Lisa Monteggia: We got involved with how Ketamine triggers an anti-depressant effect because of the real need. Some of the recent clinical data has really shown that about a third of all patients don’t respond to anti-depressants. So, what do you do for treatment for those individuals?

Narrator: UT Southwestern’s Dr. Lisa Monteggia is a neuroscientist whose lab pinpointed a key protein that helps tigger Ketamine’s rapid antidepressent effects in the brain. Whereas traditional antidepressents can take up to 8 weeks to work, the effects of ketamine are seen within 60 to 90 minutes.

Dr. Monteggia: The idea of trying to understand how you generate a rapid anti-depressant response in patients … it’s really the first time we’ve been able to study it.

Narrator: Her study, published in the prestigious journal Nature, shows that ketamine blocks a protein responsible for a range of normal brain functions.

Dr. Monteggia: How we think Ketamine triggers an anti-depressant effect, this blocking the NMDA receptor, we think may also be causing the side effects associated with Ketamine. One of the things we’re working on is to try and see if we can identify compounds, slight derivatives perhaps, that may have the beneficial effects of Ketamine, in terms of triggering anti-depressant effects, without the side effects.

Narrator: In the meantime, Joyce remains optimistic for her future and the millions of others trying to defeat depression.

Megan: That’s why I really sought out Ketamine is I really wanted to give back and just have a chance at a semi-normal life.

Depression Patients Turning to Local Doctor’s Ketamine Therapy

The deaths of designer Kate Spade on Tuesday and TV Chef Anthony Bourdain Friday morning are bringing new attention to depression and suicide.

A new Center for Disease Control and Prevention report reveals suicide rates have risen 30 percent across much of the country since 1999.

But right here in San Diego, there is hope for a category of patients some doctors call “the untreatable.”

This patient, we’ll call Lisa, is composing a letter to the editor about her 20-year fight to stay alive.

“I know how tall the bridge is. I know how many seconds it takes to land,” Lisa said.

Lisa is an attorney with severe depression. Conventional medicines could not suppress her suicidal thoughts.

“It’s awful,” she said. “The day starts with waking up thinking ‘Can I even get out of bed?’ You just fight it to exhaustion every single day.”

She was referred to Dr. David Feifel who NBC 7 first also spoke to three years ago. Patients travel from as far away as Canada to undergo his Ketamine therapy.

“Sort of a psychedelic experience. It’s also been termed dissociative experience because it is sort of an out-of-body feeling,” Dr. Feifel said of his therapy.

Dr. Feifel says low doses of Ketamine have an almost immediate effect on his patients, unlike conventional anti-depressants that can take weeks to build up a therapeutic level.

While Ketamine doesn’t stay in the body more than a day, its effects can last for months.

“It seems to be able to vaporize people’s sense of wanting to take their life.” Dr. Feifel said.

Lisa has received some 35 treatments over the last four months.

“I walk in here crappy, I’ll leave happy. It is a remarkable, remarkable experience that in 20 years nothing has ever come close” Lisa said.

Her goal is to need fewer treatments and experience longer-lasting effects.

Lisa’s hope for the so-called “untreatable community” of depressed people is they find help.

Ketamine-Associated Brain Changes – A Review of the Neuroimaging Literature

KEY POINTS:

                  Ketamine-Associated Brain Changes: A Review of the Neuroimaging Literature

Subanesthetic doses of ketamine have rapid (within hours), robust (across a variety of symptoms), and relatively sustained (typically up to one week) antidepressant effects—even in patients with TRD (treatment resistant depression). Clinical studies show that about 50% of patients with TRD have a significant decrease in symptoms within 24 hours of a single intravenous subanesthetic ketamine dose.

Animal models show that ketamine’s antidepressant effects are likely mediated by its antagonism of N-methyl-D-aspartate (NMDA) receptors through increased α-amino-3-hydroxy-5- methyl-4-isoxazolepropionic acid (AMPA)–mediated glutamatergic signaling. This triggers activation of intracellular synaptogenic pathways, most notably in the mechanistic target of rapamycin (mTOR)–signaling pathway, which also has implications in many other psychiatric disorders.

With regard to MDD patients, decreased glutamate has been noted in various prefrontal regions, including the dorsolateral prefrontal cortex (dlPFC), dorsomedial PFC (dmPFC), and anterior cingulate cortex (ACC), when compared to controls.8–10 This shortage of glutamate makes ketamine an ideal treatment for MDD; by creating a surge in glutamate levels in regions of the brain that suffer from a glutamate deficit, ketamine may provide some normalization of glutamate levels in patients with MDD. This “glutamate surge” hypothesis has dominated as the primary theory of ketamine’s antidepressant mechanism.

Ketamine may work through additional receptors, as it is known to have effects on several opioid receptors, adrenergic receptors, and several serotonin and norepinephrine transporters.17–19 It is also possible that acute dissociative side effects of ketamine may be mediating antidepressant response.

One salient biological metric that may provide insight into ketamine’s mechanism of action is related to dissociation. Dissociative side effects begin from infusion, reach a peak typically within an hour of infusion, and are completely diminished 230 minutes after infusion.20 The same study has shown that increased dissociation and psychotomimetic symptoms immediately following infusion may predict antidepressant response. (Luckenbaugh DA, Niciu MJ, Ionescu DF, et al. Do the dissociative side effects of ketamine mediate its antidepressant effects? J Affect Disord 2014;159:56–61Do the dissociative side effects of ketamine mediate its antidepressant effects.)

Certain themes have emerged with Ketamine. First are our findings of convergent brain regions implicated in MDD and how ketamine modulates those areas. Specifically, the subgenual ACC has been a region of interest in many previous studies. In relation to emotion and cognition, ketamine appears to reduce brain activation in regions associated with self-monitoring, to increase neural regions associated with emotional blunting, and to increase neural activity in reward processing.

Overall, ketamine’s effects were most notably found in the subgenual ACC, PCC, PFC, and hippocampus. Abnormalities in overlapping regions (specifically, the dorsal and subgenual ACC, amygdala, hippocampus, and ventral striatum) have been implicated, via a growing body of neuroimaging literature, in the pathophysiology of depression.  The subgenual ACC, in particular, has been a frequently studied area of interest concerning ketamine and MDD.

FMRI found significant reductions in subgenual ACC coupling with hippocampus, retrosplenial cortex, and thalamus. Immediate reductions in subgenual ACC blood flow and focal reductions in OFC blood flow strongly predicted dissociation.

NIMH studies using PET 120 minutes postinfusion found that increased metabolism in the subgenual ACC was positively correlated with improvements in depression scores post-ketamine. (Neural correlates of rapid antidepressant response to ketamine in bipolar disorder..)

Analysis of resting-state scans in healthy volunteers further suggests that dissociation may be responsible for ketamine’s antidepressant effects because it may disconnect the “excessive effects of an aversive visceromotor state on cognition and the self”—a hallmark of depression.40(p 163) Related, one study found that ketamine may dampen brain regions involved in rumination (the repetitive focusing of attention on negative feelings and thoughts in response to negative mood) by reducing the functional connectivity between the pregenual ACC and the dorsal PCC, and decreasing connectivity between the left and right executive-control networks.  (. Lehmann M, Seifritz E, Henning A, et al. Differential effects of rumination and distraction on ketamine induced modulation of resting state functional connectivity and reactivity of regions within the default-mode network. Soc Cogn Affect Neurosci 2016;11:1227–35 .Differential effects of rumination and distraction on ketamine induced modulation of resting state functional connectivity and reactivity of regions within the default-mode network.)

Taken together, these studies suggest that ketamine may cause a “disconnect” in several circuits related to affective processing, perhaps by shifting focus of attention away from the internal states of anxiety, depression, and somatization, and more toward the perceptual changes (e.g., hallucinations, visual distortions, derealization) induced by ketamine. Similarly, during an emotion task, ketamine attenuated responses to negative pictures, suggesting that the processing of negative information is specifically altered in response to ketamine. (Scheidegger M, Henning A, Walter M, et al. Ketamine administration reduces amygdalo-hippocampal reactivity to emotional stimulation. Hum Brain Mapp 2016;37:1941–52.Ketamine administration reduces amygdalo‐hippocampal reactivity to emotional stimulation)

By taking the focus off “oneself” and placing it on other stimuli, it is possible that ketamine decreases awareness of negative experiences and consequently improves mood.

Perhaps most interesting are ketamine’s effects on brain connectivity as it relates to self-monitoring behaviors. Reduced connectivity between the pregenual ACC and dorsal PCC was associated with increased dissociation during infusion, and reduced activation in the left superior temporalcortex was associated with impaired self-monitoring56,65—which is disruptive to patients with psychotic illness—especially those with chronic symptoms of psychosis. By contrast, the transient dissociation experienced by depressed patients during a ketamine infusion may have the effect of dampening what the hyperactive self-monitoring associated with depressive illness (Lehmann M, Seifritz E, Henning A, et al. Differential effects of rumination and distraction on ketamine induced modulation of resting state functional connectivity and reactivity of regions within the default-mode network. Soc Cogn Affect Neurosci 2016;11:1227–35. Differential effects of rumination and distraction on ketamine induced modulation of resting state functional connectivity and reactivity of regions within the default-mode network. b)

During ketamine administration, subjects experience emotional blunting, which may be associated with reduced limbic responses to emotional stimuli.54,55 It is possible that by decreasing the activity of deep limbic structures (thought to be involved in the pathophysiology of depression, such as the amygdala), ketamine acutely disables the emotional resources required to perpetuate the symptoms of depression. (Abel KM, Allin MP, Kucharska-Pietura K, et al. Ketamine and fMRI BOLD signal: distinguishing between effects mediated by change in blood flow versus change in cognitive state. Hum Brain Mapp 2003;18:135–45. Ketamine and fMRI BOLD signal Distinguishing between effects mediated by change in blood flow versus change in cognitive state|||| Abel KM, Allin MP, Kucharska-Pietura K, et al. Ketamine alters neural processing of facial emotion recognition in healthy men: an fMRI study. Neuroreport 2003;14:387–91 Ketamine alters neural processing of facial emotion recognition in healthy men an fMRI study.)

Ketamine may play a role in reactivating reward areas of the brain in patients with MDD. This reactivation may be especially important, as reward areas in MDD have been characterized by decreased subcortical and limbic activity and by an increased cortical response to reward paradigms. (Zhang WN, Chang SH, Guo LY, Zhang KL, Wang J. The neural correlates of reward-related processing in major depressive disorder: a meta-analysis of functional magnetic resonance imaging studies. J Affect Disord 2013;151:531–9.)

In resting-state scans, BOLD activation in the cingulate gyrus, hippocampus, insula, thalamus, and midbrain increased after ketamine.( Stone J, Kotoula V, Dietrich C, De Simoni S, Krystal JH, Mehta MA. Perceptual distortions and delusional thinking following ketamine administration are related to increased pharmacological MRI signal changes in the parietal lobe. J Psychopharmacol 2015;29:1025–8.Perceptual distortions and delusional thinking following ketamine administration are related to increased pharmacological MRI signal changes in the parietal lobe)

In addition, ketamine increases neural activation in the bilateral MCC, ACC, and insula, as well as the right thalamus.  Activation of these areas is consistent with activation of reward-processing areas, suggesting that ketamine may play a role in activating reward neurocircuitry. (Hoflich A, Hahn A, Kublbock M, et al. Ketamine-dependent neuronal activation in healthy volunteers. Brain Struct Funct 2017;222:1533–42.)

Though no single brain area has been singled out as the locus of depression, ketamine affects different areas of the brain in various ways, which may contribute to overall mood improvements. For example, at baseline, patients with MDD, compared to healthy volunteers, had reduced global connectivity in the PFC and increased connectivity in the posterior cingulate, precuneus, lingual gyrus, and cerebellum; postketamine, responders had increased connectivity in the lateral PFC, caudate, and insula. (Abdallah CG, Averill LA, Collins KA, et al. Ketamine treatment and global brain connectivity in major depression. Neuropsychopharmacology 2017;42:1210–9.Ketamine Treatment and Global Brain Connectivity in Major Depression.)

These findings may reflect ketamine’s ability to reclaim frontal control over deeper limbic structures, thus strengthening the cognitive control of emotions and decreasing depressive symptoms. Similarly, TRD patients, compared to healthy volunteers, had reduced insula and caudate responses to positive emotions at baseline, which normalized in the caudate post-ketamine. (Murrough JW, Collins KA, Fields J, et al. Regulation of neural responses to emotion perception by ketamine in individuals with treatment-resistant major depressive disorder. Transl Psychiatry 2015;5:e509 Regulation of neural responses to emotion perception by ketamine in individuals with treatment-resistant major depressive disorder.)

Improvements are correlated with increased metabolism in the hippocampus, dorsal ACC, and decreased metabolism in the OFC. (Lally N, Nugent AC, Luckenbaugh DA, Niciu MJ, Roiser JP, Zarate CA Jr. Neural correlates of change in major depressive disorder anhedonia following open-label ketamine. J Psychopharmacol 2015;29:596–607 Neural correlates of change in major depressive disorder anhedonia following open-label ketamine.)

Specifically, based on this review, future studies should likely focus on ketamine’s action in the subgenual ACC, PCC, PFC, and hippocampus. Another promising direction for research builds on the view that depression is the product of underactive prefrontal and limbic mood-regulation networks and overreactive subcortical limbic networks, which are involved in emotional and visceral responses. (Drevets WC, Price JL, Furey ML. Brain structural and functional abnormalities in mood disorders: implications for neurocircuitry models of depression. Brain Struct Funct 2008; 213:93–118 Brain structural and functional abnormalities in mood disorders.)

Ketamine’s potential use in both research and treatment is promising indeed.

 

Neural correlates of exercise training in individuals with schizophrenia and in healthy individuals A systematic review.

Mechanisms of Ketamine Action as an Antidepressant

Ketamine and Ketamine Metabolite Pharmacology Insights into Therapeutic Mechanisms.

Ketamine and other N-methyl-D-aspartate receptor antagonists in the treatment of depression a perspective review

THE NEUROBIOLOGY OF ketamine and addiction

Psychedelic-Assisted Psychotherapy – A Paradigm Shift in Psychiatric Research and Development

KETAMINE FOR TREATMENT-RESISTANT UNIPOLAR AND BIPOLAR MAJOR DEPRESSION – CRITICAL REVIEW AND IMPLICATIONS FOR CLINICAL PRACTICE.

Ketamine for the treatment of addiction Evidence and potential mechanisms  <<<<<<<<<<<<<<<<<<<<<<<<<<<

REVIEW OF KETAMINE ABUSE AND DIVERSION

Cognitive behavior therapy may sustain antidepressant effects of intravenous ketamine in treatment-resistant depression

The Effect of a Single Dose of Intravenous Ketamine on suicidal ideation – systemic review and meta-analysis

Rapid-Acting Antidepressants Mechanistic Insights and Future Directions.

Ketamine and rapid-acting antidepressants a new era in the battle against depression and suicide.

Molecular and Cellular Mechanisms of Rapid-Acting Antidepressants Ketamine and Scopolamine

A Circadian Genomic Signature Common to Ketamine and Sleep Deprivation in the Anterior Cingulate Cortex

New Targets for Rapid Antidepressant Action

Role of copper in depression. Relationship with ketamine treatment

Ketamine normalizes brain activity during emotionally valenced attentional processing in depression.

Glutamate and Gamma-Aminobutyric Acid Systems in the Pathophysiology of Major Depression and Antidepressant Response to Ketamine.

Recognizing Depression from the Microbiota⁻Gut⁻Brain Axis. b

Psychobiotics and the gut–brain axis in the pursuit of happines

Symptomatology and predictors of antidepressant efficacy in extended responders to a single ketamine infusion

Default Mode Connectivity in Major Depressive diosrder measured up to 10 days after Ketamine administration

S-Adenosyl Methionine and Transmethylation Pathways in Neuropsychiatric Diseases Throughout Life

S-Adenosyl Methionine in the Therapy of Depression and Other Psychiatric Disorders.

Ketamine for Depression, 2 Diagnostic and Contextual Indications.

Ketamine’s antidepressant efficacy is extended for at least four weeks in subjects with a family history of an alcohol use disorder

Predictors of Response to Ketamine in Treatment Resistant Major Depressive Disorder and Bipolar Disorder

The role of adipokines in the rapid antidepressant effects of ketamine.

response to ketamine and prediction of treatment outcome

What is the mechanism of Ketamine’s rapid‐onset antidepressant effect A concise overview of the surprisingly large number of possibilities

Medical comorbidity in bipolar disorder The link with metabolic-inflammatory systems.

Sterile Inflammation of Brain, due to Activation of Innate Immunity, as a Culprit in Psychiatric Disorders

Sterile Inflammation of Brain, due to Activation of Innate Immunity, as a Culprit in Psychiatric Disorders

Role of neuro-immunological factors in the pathophysiology of mood disorders.

Anti-inflammatory agents in the treatment of bipolar depression a systematic review and meta-analysis

The role of tryptophan metabolism and food craving in the relation between obesity and bipolar disorder

Immune-based strategies for mood disorders facts and challenges

Metabolic syndrome in psychiatric patients implications

Genetic Studies on the Tripartite Glutamate Synapse in the Pathophysiology and Therapeutics of Mood Disorders

The Impact of a Single Nucleotide Polymorphism in SIGMAR1 on Depressive Symptoms in Major Depressive Disorder and Bipolar Disorder.

Case–control association study of 14 variants of CREB1, CREBBP and CREM on MDD and bipolar

Metabolic syndrome in psychiatric patients overview, mechanisms, and implications.

Peripheral inflammation, Physical Activity and Cognition in Bipolar Disorder

The putative role of oxidative stress and inflammation in the pathophysiology of sleep dysfunction across neuropsychiatruc disorders – chronic fatigue bipolar MS

Bipolar Disorder and Inflammation.

Pharmacologic implications of inflammatory comorbidity in bipolar disorder.

Minding the brain- the role of pharmacotherapy in substance-use disorder treatment

Molecular and Cellular Effects of Traumatic Stress Implications for PTSD

Synaptic Loss and the Pathophysiology of PTSD Implications for Ketamine as a Prototype Novel Therapeutic