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How Ketamine Opens a New Era for Depression Treatment

Not for clubbers only.
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Researchers have discovered that ketamine, a drug of choice for club-goers for decades, can be used to fight severe cases of the blues. For more than three decades, patients seeking treatment for depression in the U.S. have been steered primarily to one family of pharmaceuticals. Doctors have been looking for more treatments, particularly for patients who haven’t had success with drugs or who have had suicidal thoughts. (The U.S. suicide rate increased 30% from 1999 to 2016.) Could a party drug be the key to solving the nation’s suicide crisis?

1. What’s ketamine?

It’s an anesthetic approved in 1970 as a safer alternative to phencyclidine, better known as PCP or angel dust. Ketamine became a common battlefield anesthetic during the Vietnam War, and by 1971 it was being used in much higher doses as a recreational drug. By the mid-1980s, ketamine was linked with dance culture in the U.S. and Europe, where it became a popular party drug that can produce euphoria and put users in a dreamlike state. At higher doses it can cause hallucinations and disassociation, a state in which users feel as if their mind and body aren’t connected, sometimes called the “K-hole.”

2. Why is it getting another look?

In March, Johnson & Johnson won approval for esketamine, a close cousin of ketamine, for patients with treatment-resistant depression, who make up one-third of the estimated 17.3 million Americans who have experienced depression. Administered via nasal spray, the drug, Spravato, is being billed as the first major therapeutic advance for depression since the introduction of Prozac in 1987. Spravato is undergoing additional studies, and the drugmaker hopes to win approval to use it for treatment of suicidal depression by 2020. (U.S. President Donald Trump expressed optimism that the drug can succeed in reducing suicides by military veterans.) Janssen, a subsidiary of Johnson & Johnson, filed marketing applications for esketamine in in the EU, UK, Canada, Switzerland, China, Japan, Australia, New Zealand and Colombia.

3. How is ketamine different from other antidepressants?

Most depression drugs, including Prozac, are part of a class known as selective serotonin reuptake inhibitors, or SSRIs. They work by blocking the re-absorption of the neurotransmitter serotonin, increasing the supply available in the brain. Ketamine works on the neurotransmitter glutamate, which is considered crucial in learning and memory formation. While SSRIs can take weeks or months to take effect, ketamine has been shown to begin working in as little as a few hours, making it the first rapid-acting depression drug. Another psychedelic drug that’s long been frowned-upon, so-called magic mushrooms, or psilocybin, also being studied as a potential treatment for depression.

4. When will it be available?

Some patients have already started taking Spravato for depression. Because of concerns about abuse, the drug is available to patients only under supervision at several hundred medical centers that Johnson & Johnson has certified.

The Reference Shelf

  • Bloomberg Businessweek on how esketamine can transform the treatment of suicidal patients.
  • President Donald Trump is impressed with Spravato’s potential.
  • Spravato has life changing potential, but may not be a surefire hit, Max Nisen argues in Bloomberg Opinion.
  • An academic paper detailing ketamine’s historyas a recreational drug.
  • Johnson & Johnson’s Spravato website, featuring a database of centers certified to give the treatment.



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The Brain on Fire: Depression and Inflammation

According to the World Health Organization, depression is the leading cause of disability. Unfortunately, 30 to 60 percent of patients are not responsive to available antidepressant treatments (Krishnan & Nestler, 2008). In other words, 40 to 70 percent of patients are not helped by existing treatments. One area of research might shed some light on why a sizable portion of patients are not helped by current antidepressants.

There is growing evidence that inflammation can exacerbate or even give rise to depressive symptoms. The inflammatory response is a key component of our immune system. When our bodies are invaded by bacteria, viruses, toxins, or parasites, the immune system recruits cells, proteins, and tissues, including the brain, to attack these invaders. The main strategy is to mark the injured body parts, so we can pay more attention to them. Local inflammation makes the injured parts red, swollen, and hot. When the injury is not localized, then the system becomes inflamed. These pro-inflammatory factors give rise to “sickness behaviors.” These include physical, cognitive and behavioral changes. Typically, the sick person experiences sleepiness, fatigue, slow reaction time, cognitive impairments, and loss of appetite. This constellation of changes that take place when we are sick is adaptive. It compels us to get more sleep to heal and remain isolated so as not to spread infections.

However, a prolonged inflammatory response can wreak havoc in our bodies and can put us at risk of depression and other illnesses. There is plenty of evidence solidifying the link between inflammation and depression. For example, markers of inflammation are elevated in people who suffer from depression compared to non-depressed ones (Happakoski et al., 2015). Also, indicators of inflammation can predict the severity of depressive symptoms. A study that examined twins who share 100 percent of the same genes found that the twin who had a higher CRP concentration (a measure of inflammation) was more likely to develop depression five years later.  

Doctors noticed that their cancer and Hepatitis C patients treated with IFN-alpha therapy (increases inflammatory response) also suffered from depression. This treatment increased the release of pro-inflammatory cytokines, which gave rise to a loss of appetite, sleep disturbance, anhedonia (loss of pleasure), cognitive impairment, and suicidal ideation (Lotrich et al., 2007). The prevalence of depression in these patients was high. These results add credence to the inflammation story of depression.

Subsequent careful studies showed that the increase in the prevalence of depression in patients treated with IFN-alpha was not only because they were sick. Using a simple method of injecting healthy subjects with immune system invaders, researchers found higher rates of depressive symptoms in the ones who were exposed compared to the placebo group. The subjects who were induced to have an inflammatory response complained of symptoms such as negative mood, anhedonia, sleep disturbances, social withdrawal, and cognitive impairments.

The link between inflammation and depression is even more solid for patients who don’t respond to current antidepressants. Studies have shown that treatment-resistant patients tend to have elevated inflammatory factors circulating at baseline than the responsive ones. This is clinically important; a clinician can utilize a measure like CRP levels, which are part of a routine physical, to predict the therapeutic response to antidepressants. In one study, they found that increased levels of an inflammation molecule prior to treatment predicted poor response to antidepressants (O’Brien et al., 2007).

There are environmental factors that cause inflammation and therefore elevate risk for depression: stress, low socioeconomic status, or a troubled childhood. Also, an elevated inflammatory response leads to increased sensitivity to stress. The effect has been reported in multiple studies in mice. For example, mice that have gone under chronic unpredictable stress have higher levels of inflammation markers (Tianzhu et al., 2014). Interestingly, there are individual differences that make some mice more resistant to stress, therefore initiating a calmer immune response (Hodes et al., 2014).

Depression is a heterogeneous disorder. Each patient’s struggle is unique given their childhood, genetics, the sensitivity of their immune system, other existing bodily illnesses, and their current status in society. Being on the disadvantageous end of these dimensions irritates our immune system and causes chronic inflammation. The brain is very responsive to these circulating inflammatory markers and initiates “sickness behavior.” When the inflammation is prolonged by stressors or other vulnerabilities, the sickness behavior becomes depression.

If you are a professional working with patients suffering from depression, I urge you to consider the health of your patients’ immune systems. If you are a patient suffering from an exaggerated immune disorder (e.g., arthritis), do not ignore the depressive symptoms that you might be experiencing. If you are suffering from depression, avoid anything that might exacerbate your immune response. This is another example of the beautiful dance between mind and body!

References

Haapakoski,R.,Mathieu,J.,Ebmeier,K.P.,Alenius,H.,Kivimäki,M., 2015. Cumulative meta-analysisofinterleukins6 and 1β,tumournecrosisfactorα and C-reactive protein in patients with major depressive disorder. Brain Behav.Immun. 49,206.

Hodes GE, Pfau ML, Leboeuf M, Golden SA, Christoffel DJ, Bregman D et al (2014). Individual differences in the peripheral immune system promote resilience versus susceptibility to social stress. Proc Natl Acad Sci USA 111: 16136–16141.

Krishnan V, Nestler EJ (2008). The molecular neurobiology of depression. Nature 455: 894–902.

Lotrich,F.E.,Rabinovitz,M.,Gironda,P.,Pollock,B.G., 2007. Depression following pe-gylated interferon-alpha:characteristics and vulnerability.J.Psychosom.Res.63, 131–135.https://doi.org/10.1016/j.jpsychores.2007.05.013.

O’Brien, S.M., Scully, P., Fitzgerald, P., Scott, L.V., Dinan, T.G., 2007a. Plasma cytokine profiles in depressed patients who fail to respond to selective serotonin reuptake inhibitor therapy. J. Psychiatr. Res. 41, 326e331.

Tianzhu, Z., Shihai, Y., Juan, D., 2014. Antidepressant-like effects of cordycepin in a mice model of chronic unpredictable mild stress. Evid. Based Complement. Altern. Med. 2014, 438506.

The Serotonin Transporter Gene and Depression

A new large-scale study casts doubt on a widely reported association.

Why some people develop major depressive disorder and others do not is a complex and not well-understood process. Several factors have been discussed to contribute to depression, among them:

generic free cialis canadian Genetic variation: Individuals carrying one or two copies of a specific risk allele on one or more “depression gene/s” have a higher risk of developing depression.

get link Environmental influences: Negative life events such as trauma, negligence, or abuse increase the risk of developing depression.

here Gene-by-environment interactions: Negative life events only lead to depression in individuals with a specific genetic set-up that makes them risk-prone to develop depression.

The gene most commonly associated with depression is the serotonin transporter gene SLC6A4 (Bleys et al., 2018). Serotonin is a neurotransmitter affecting multiple physiological processes and cognitivebrain functions, among them mood and emotions, which is why it has been linked to mood disorders such as depression. Indeed, low serotonin levels have been associated with depressed mood (Jenkins et al., 2016), and selective serotonin reuptake inhibitors (SSRIs) are the most commonly prescribed antidepressants. SSRIs block the reuptake of serotonin during cellular communication in the brain, making more serotonin available, and thus in theory helping to reduce depression.

Along these lines, the idea that the serotonin transporter gene could affect depression risk or severity intuitively made sense. Specifically, many scientists focused on the so-called 5-HTTLPR polymorphism in the promoter region of the serotonin transporter gene to research the effects of this gene on depression. Genetic polymorphism means that at a specific location in the genome, different people might have slight variations in their DNA which could affect how well the protein that the gene produces could do its job. In the case of the 5-HTTLPR polymorphism, there is a short allele (s) and a long allele (l). Already back in the 1990s, researchers showed that people with two or one short alleles have a higher chance of developing depression than those with two long alleles, as the short allele leads to reduced expression of the serotonin transporter (Collier et al., 1996).

This initial study sparked interest in the 5-HTTLPR polymorphism, but not all empirical works could find a clear association. In 2003, a surprising finding seemingly resolved this controversy. In a widely cited study, Caspi and colleagues were able to show that the effects of 5-HTTLPR polymorphism genotype on depression were moderated by a so-called gene-by-environment interaction (Caspi et al., 2003). This means that the genotype would only have an effect if individuals were also subjected to specific environmental conditions. Specifically, the scientists found that individuals reacted differently to highly stressful life events, depending on the 5-HTTLPR genotype. People with at least one short allele on the 5-HTTLPR polymorphism developed more depressive symptoms if they experienced a highly stressful life event than people with two long alleles. However, without a stressful life event, the genotype did not have an effect on the probability to develop depression.

This study further increased the interest in the 5-HTTLPR polymorphism and its relation to depression, leading to more studies on this topic. However, a problem of many of these studies was that their sample sizes were comparably small for genetic studies, potentially leading to erroneous results and overblown effects.

Almost a decade ago, Risch and co-workers (Risch et al., 2009) conducted a so-called meta-analysis, a statistical integration of empirical studies. They analyzed 14 studies on the 5-HTTLPR polymorphism and its relation to depression and on whether this relation was influenced by stressful life events as had been suggested by Caspi et al. (2003). Their result was clear: While more stressful life events led to a higher risk of depression, there was no effect of the 5-HTTLPR genotype on depression and no gene-by-environment interaction effect between genotype and stressful life events.

Despite this finding, hundreds of studies on the 5-HTTLPR polymorphism and depression have been published since 2009 (the scientific search engine PubMed lists more than 800 hits for the search term “5-HTTLPR depression” as of early May 2019). A new study recently published by Richard Border and colleagues in The American Journal of Psychiatry(Border et al., 2019) aimed to resolve the controversy about whether or not the 5-HTTLPR genotype affects depression and whether there is a gene-by-environment interaction between this genotype and stressful life events once and for all. To avoid the statistical problems of previous studies, they obtained data from several large genetic datasets available to researchers, leading to a sample size of several hundred thousand individuals. The results of the analysis were clear as well: There was no statistical evidence for a relation between the 5-HTTLPR polymorphism and depression, and there was also no evidence that traumatic life events or adverse socioeconomic conditions might show a gene-by-environment interaction with this genotype.

This, of course, does not mean that there is no relationship between serotonin and depression (there clearly is, as shown by the treatment success of SSRIs), but it lends further support to an emerging insight in psychiatry genetics: Mental illness is a highly complex process that is likely influenced by a large number of genetic and non-genetic effects. As such, it is unlikely that single genetic variations such as the 5-HTTLPR polymorphism have a huge impact on whether or not an individual develops depression or any other form of mental illness. Future psychiatry genetic studies will need to take this complexity into account by analyzing genetic variation across the whole genome and epigenome and relating it to mental illness (Meier & Deckert, 2019).



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Ketamine Study Reveals How to Make It an Even Better Depression Treatment

In early March, the FDA approved a nasal spray for depression based on ketamine, a substance once known only as a rave drug. Despite its reputation, ketamine is so promising as an anti-depressant that it will soon be available in licensed clinics throughout the country. A study published in Science on Thursday proposes the new treatment can be made even better.

In their paper, a team of scientists at Weill Cornell’s Medicine’s Feil Family Brain and Mind Research Institute show that ketamine can help the brain reform synapses, crucial connections between neurons, that can alleviate depressive symptoms. Ketamine is already famous for working quickly to relieve depressive symptoms — within days or hours — co-author Conor Liston, Ph.D., tells Inverse, but maintaining those crucial connections is key to extending its effects.

“Our study shows that the formation of new connections (synapses) between brain cells is required for sustaining ketamine’s antidepressant effects in the days after treatment,” says Liston, also professor of neuroscience at Weill Cornell. “Ketamine is an exciting new treatment for depression that differs from drugs like SSRIs in that it relieves symptoms rapidly. However, those effects are not always sustained.”

upset, depressed
Ketamine-based nasal spray is a new FDA-licensed drug for treatment-resistant depression.

Growing Back Dendritic Spines

In a mouse model, Liston and his co-authors demonstrated that doses of ketamine helped mouse brains regrow dendritic spines, small protrusions on neurons that help them pick up signals rom other cells that, crucially, degrade during exposure to chronic stress. These dendritic spines are a key part of synapse formation.

The degradation of these spines is not a perfect analog to human depression, but humans have them as well, and Liston points out that some of the most important features of depression in humans are also present in chronically stressed mice.

To create depression-like conditions, the team degraded the dendritic spines in their mice using stress hormones. Then, they gave one group a dose of ketamine, which they expected to have anti-depressive effects.

dendritic spine
A dendritic spine helps form a synapse — a connection to another neuron.

The dose of ketamine not only changed the mice’s behavior — they tried harder to escape their cages — it also helped reform the dendritic spines in their brains. Interestingly, the ketamine didn’t form random dendritic spines but actually seemed to replace the old ones that had been degraded by constant stress. Of the new spines formed, 47.7 percent grew within two micrometers of where the old ones once were.

Why Dendritic Spines Are Important

The new dendritic spines serve an important purpose in the mouse brains. Within three hours of treatment, previously damaged circuits in the prefrontal cortex were starting to come back online, but this happened before new synapses form. At the end of the experiment, an estimated 20.4 to 31.0 percent of the lost synapses were restored after the mice took ketamine.

The fact that the circuits were restored before the synapses reformed suggests that ketamine jump-starts a two-step process that fights depression. The first step is the rapid anti-depressant effect that is seen in so many studies. The second step — regrowing the spines and restoring synapses — occurs more slowly, which means it’s the one scientists should focus on if they’re looking to make ketamine’s effects on depression last longer, Liston says.

When Liston used blue light to artificially remove the newly grown spines in a follow-up experiment, the mice relapsed into depressive symptoms. It suggested that maintaining these dendritic spines is important in keeping depression at bay.

“Our results suggest that interventions aimed at enhancing the survival of newly formed connections in prefrontal brain circuits could be useful for augmenting ketamine’s antidepressant effects by increasing their durability in the days and weeks after treatments.”

The FDA’s approval of a ketamine-based drug to treat depression was groundbreaking in itself, especially since it works differently than other anti-depressant drugs. But just because it’s been approved doesn’t mean there aren’t ways to improve it. Depression can be alleviated with ketamine, but for now the illness constantly threatens individuals with remission. Preventing the potential for a relapse with the promise of longer-lasting effects is one way to make this already remarkable drug even more helpful.

get link tructured Abstract

vardenafil generico miglior prezzo garanzia INTRODUCTION

Depression is an episodic form of mental illness, yet the circuit-level mechanisms driving the induction, remission, and recurrence of depressive episodes over time are not well understood. Ketamine relieves depressive symptoms rapidly, providing an opportunity to study the neurobiological substrates of transitions from depression to remission and to test whether mechanisms that induce antidepressant effects acutely are distinct from those that sustain them.

follow site RATIONALE

Contrasting changes in dendritic spine density in prefrontal cortical pyramidal cells have been associated with the emergence of depression-related behaviors in chronic stress models and with ketamine’s antidepressant effects. But whether and how dendritic spine remodeling is causally involved, or whether it is merely correlated with these effects, is unclear. To answer these questions, we used two-photon imaging to study how chronic stress and ketamine affect dendritic spine remodeling and neuronal activity dynamics in the living prefrontal cortex (PFC), as well as a recently developed optogenetic tool to manipulate the survival of newly formed spines after ketamine treatment.

go RESULTS

The induction of depression-related behavior in multiple chronic stress models was associated with targeted, branch-specific elimination of postsynaptic dendritic spines and a loss of correlated multicellular ensemble activity in PFC projection neurons. Antidepressant-dose ketamine reversed these effects by selectively rescuing eliminated spines and restoring coordinated activity in multicellular ensembles that predicted motivated escape behavior. Unexpectedly, ketamine’s effects on behavior and ensemble activity preceded its effects on spine formation, indicating that spine formation was not required for inducing these effects acutely. However, individual differences in the restoration of lost spines were correlated with behavior 2 to 7 days after treatment, suggesting that spinogenesis may be important for the long-term maintenance of these effects. To test this, we used a photoactivatable probe to selectively reverse the effects of ketamine on spine formation in the PFC and found that the newly formed spines play a necessary and specific role in sustaining ketamine’s antidepressant effects on motivated escape behavior. By contrast, optically deleting a random subset of spines unrelated to ketamine treatment had no effect on behavior.

CONCLUSION

Prefrontal cortical spine formation sustains the remission of specific depression-related behaviors after ketamine treatment by restoring lost spines and rescuing coordinated ensemble activity in PFC microcircuits. Pharmacological and neurostimulatory interventions for enhancing and preserving the rescue of lost synapses may therefore be useful for promoting sustained remission.

Why is ketamine an antidepressant?

A better understanding of the mechanisms underlying the action of antidepressants is urgently needed. Moda-Sava et al. explored a possible mode of action for the drug ketamine, which has recently been shown to help patients recover from depression (see the Perspective by Beyeler). Ketamine rescued behavior in mice that was associated with depression-like phenotypes by selectively reversing stress-induced spine loss and restoring coordinated multicellular ensemble activity in prefrontal microcircuits. The initial induction of ketamine’s antidepressant effect on mouse behavior occurred independently of effects on spine formation. Instead, synaptogenesis in the prefrontal region played a critical role in nourishing these effects over time. Interventions aimed at enhancing the survival of restored synapses may thus be useful for sustaining the behavioral effects of fast-acting antidepressants.

Structured Abstract

INTRODUCTION

Depression is an episodic form of mental illness, yet the circuit-level mechanisms driving the induction, remission, and recurrence of depressive episodes over time are not well understood. Ketamine relieves depressive symptoms rapidly, providing an opportunity to study the neurobiological substrates of transitions from depression to remission and to test whether mechanisms that induce antidepressant effects acutely are distinct from those that sustain them.

RATIONALE

Contrasting changes in dendritic spine density in prefrontal cortical pyramidal cells have been associated with the emergence of depression-related behaviors in chronic stress models and with ketamine’s antidepressant effects. But whether and how dendritic spine remodeling is causally involved, or whether it is merely correlated with these effects, is unclear. To answer these questions, we used two-photon imaging to study how chronic stress and ketamine affect dendritic spine remodeling and neuronal activity dynamics in the living prefrontal cortex (PFC), as well as a recently developed optogenetic tool to manipulate the survival of newly formed spines after ketamine treatment.

RESULTS

The induction of depression-related behavior in multiple chronic stress models was associated with targeted, branch-specific elimination of postsynaptic dendritic spines and a loss of correlated multicellular ensemble activity in PFC projection neurons. Antidepressant-dose ketamine reversed these effects by selectively rescuing eliminated spines and restoring coordinated activity in multicellular ensembles that predicted motivated escape behavior. Unexpectedly, ketamine’s effects on behavior and ensemble activity preceded its effects on spine formation, indicating that spine formation was not required for inducing these effects acutely. However, individual differences in the restoration of lost spines were correlated with behavior 2 to 7 days after treatment, suggesting that spinogenesis may be important for the long-term maintenance of these effects. To test this, we used a photoactivatable probe to selectively reverse the effects of ketamine on spine formation in the PFC and found that the newly formed spines play a necessary and specific role in sustaining ketamine’s antidepressant effects on motivated escape behavior. By contrast, optically deleting a random subset of spines unrelated to ketamine treatment had no effect on behavior.

CONCLUSION

Prefrontal cortical spine formation sustains the remission of specific depression-related behaviors after ketamine treatment by restoring lost spines and rescuing coordinated ensemble activity in PFC microcircuits. Pharmacological and neurostimulatory interventions for enhancing and preserving the rescue of lost synapses may therefore be useful for promoting sustained remission.



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Ketamine Virginia Link

Long known as a party drug, ketamine now used for depression, but concerns remain

A decades-old anesthetic made notorious as a party drug in the 1980s is resurfacing as a potential “game-changing” treatment for severe depression, patients and psychiatrists say, but they remain wary about potential long-term problems.

The Food and Drug Administration earlier this month OKd use of Spravato for patients with depression who have not benefited from other currently available medications. Spravato, the brand name given to the drug esketamine, is a molecule derived from ketamine — known as Special K on the club scene.

Ketamine has been shown in some studies to be useful for treating a wide variety of neurological disorders including depression. Regular, longtime use of it isn’t well understood, psychiatrists say, but the need for a new drug to treat depression is so great that the FDA put Spravato on a fast-track course for approval.

The drug likely will be commercially available in a few weeks, and patients already are requesting it. Restrictions around its use, though — the drug must be administered in a doctor’s office by providers who are certified with the company making it — mean it may be months before it’s widely available, and longer than that before insurers start paying for it.

“I don’t think we know at this point how effective it’s going to be,” said Dr. Craig Nelson, a psychiatrist at the UCSF Depression Center. “There have been a number of studies of ketamine, sometimes showing effects in people who were resistant to other drugs. If we can treat a different group of people, it would be a great advantage.”

Ketamine was developed in the 1960s as a surgical anesthetic for people and animals. The drug can cause hallucinations and a feeling of “dissociation” or unreality, and in the 1980s it took off as a party drug among people seeking those effects. It remained a common anesthetic, though, and in the early 2000s doctors began to notice a connection between ketamine and relief from symptoms of depression and other mood disorders.

Spravato is delivered by nasal spray, which patients give themselves in a doctor’s office. Patients must be monitored while they get the drug and for two hours after to make sure they don’t suffer immediate complications. At the start, patients will get the nasal spray twice a week for four weeks, then taper to regular boosters every few weeks for an indefinite period of time.

Studies of ketamine — and specifically of Spravato — have produced encouraging but inconsistent results. Psychiatrists say that, like most other antidepressants, the drug probably won’t help everyone with difficult-to-treat depression. But there likely will be a subset of patients who get substantial benefits, and that alone may make it an incredible new tool.

About 16 million Americans experience depression every year, and roughly a quarter of them get no benefit from antidepressants on the market. Thought scientists haven’t determined exactly how ketamine works on the brains of people with depression or other mood disorders, it appears to take a different path of attack than any drug already available. That means that people who don’t respond to other antidepressants may find this one works for them.

But a concern among some psychiatrists is that studies have suggested that ketamine may affect the same receptors in the brain that respond to opioids. Ketamine and its derivations may then put patients at risk of addiction — but research so far hasn’t explored that kind of long-term effect.

“There might be some potential problems if you used it too aggressively,” said Dr. Alan Schatzberg, director of the Stanford Mood Disorders Center, who led the research that identified a connection with opioid receptors. “The issue is not so much the short-term use, it’s the repetitive use, and the use over time, as to whether there are going to be untoward consequences.

“It would be hard for me to recommend the use of this drug for chronically depressed people without knowing what the endgame is here,” he added.

Dr. Carolyn Rodriguez, a Stanford psychiatrist who was part of the studies of ketamine and opioid receptors, said she shares Schatzberg’s concerns. But she’s been studying the use of ketamine to treat obsessive-compulsive disorder, and for some patients the results have been so remarkable that the benefits may exceed the risks.

“When I gave ketamine to my first patient, I nearly fell off my chair. Somebody said it was like a vacation from their OCD, and I was just, ‘Wow, this is really possible,’” Rodriguez said. “I want to make sure patients have their eyes wide open. I hope (the FDA approval) spurs more research, so we can really inform consumers.”

Though the new nasal spray is the first formal FDA approval of a ketamine-derived drug, psychiatrists have been using the generic anesthetic for years to study its effect on depression and other mood disorders.

In recent years, clinics have opened around the country offering intravenous infusions of ketamine to people with hard-to-treat depression and other problems. These treatments aren’t specifically FDA-approved but are allowed as off-label use of ketamine. The clinics have faced skepticism from some traditional psychiatrists, but there’s a growing ream of anecdotal evidence that the ketamine IVs work — for some people.

Aptos resident Mary, who suffers from depression and other mood disorders and asked that her last name not be used to protect her privacy, said the already available antidepressants weren’t keeping her symptoms at bay, and she frequently felt “one step away from the abyss.” When she first heard about ketamine, from a support group for people with depression and other mood disorders, she was hesitant.

“I kind of hemmed and hawed, because I’d heard that K was a street drug,” Mary said. “But then I said, ‘What do I have to lose?’ So I went and did it.”

The results were quick: Within four days, “the cloud had lifted,” she said. More than a year later, she is still feeling good with regular infusions every three or four weeks. During the ketamine infusion, Mary said she’ll feel the dissociation, which she described as feeling like she’s viewing the world around her as though it were a movie and not her own life.

She said she’s pleased the FDA approved Spravato, though she hasn’t decided whether she’ll switch from the IV ketamine to the nasal spray. She hopes that the FDA approval will give some validation to ketamine and encourage others to try it.

Mary gets her infusions at Palo Alto Mind Body, where Dr. M Rameen Ghorieshi started offering ketamine two years ago. He’s certified with the maker of Spravato — Janssen Pharmaceuticals, a branch of Johnson and Johnson — to provide the drug, though he doesn’t know when he’ll actually start giving the nasal spray to patients.

Ghorieshi said that although he’s been offering IV ketamine for more than two years, he shares his colleagues’ wariness of the long-term effects of regular use of the drug. He hopes FDA approval will encourage further research.

“At this point we’ve done 1,000 infusions. The outcomes have exceeded my own expectations,” Ghorieshi said. “But anecdotes are not clinical trials. I approach this very cautiously. What I don’t want is 20 or 30 years from now to look back and say, ‘What did we do?’”



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Call NOVA Health Recovery at 703-844-0184 for a free consultation for a Ketamine infusion. No referral needed. We offer intranasal Ketamine follow up therapy as well. Alexandria, Va 22306.

Call NOVA Health Recovery at 703-844-0184 for a free consultation for a Ketamine infusion. No referral needed. We offer intranasal Ketamine follow up therapy as well. Alexandria, Va 22306.

VA to offer new ketamine-based nasal spray to help combat depression

The newest FDA-approved medication to treat severe depression, a nasal spray based on the anesthetic (and misused hallucinogenic party drug) ketamine, will soon be available to veterans treated within the Department of Veterans Affairs.

In a move that may help thousands of former service members with depression that has not improved with other treatments, VA officials announced Tuesday that the department’s doctors are now authorized to prescribe Spravato, the brand name for esketamine, a molecular variation of ketamine.

The decision to offer a drug hailed by many as a breakthrough in treatment for its speedy results — often relieving symptoms in hours and days, not weeks — shows the VA’s “commitment to seek new ways to provide the best health care available for our nation’s veterans,” Secretary Robert Wilkie said in a release.

“We’re pleased to be able to expand options for Veterans with depression who have not responded to other treatments,” Wilkie added.

The treatment will be available to veterans based on a physician’s assessment and only will be administered to patients who have tried at least two antidepressant medications and continue to have symptoms of major depressive disorder.

An estimated 16 million Americans have had at least one major episode of depression, and of those, 1 in 3 are considered treatment-resistant. In the veteran population of 20 million, the estimated diagnosis rate of depression is 14 percent — up to 2.8 million veterans. Between one-third and half of those veterans may be treatment-resistant.

The lack of effective medications for difficult-to-treat patients prompted the Food and Drug Administration to place esketamine on a fast track, expediting its review of the drug to ensure that it went to patent as soon as safely possible, according to administration officials.

“Controlled clinical trials that studied the safety and efficacy of this drug, along with careful review through the FDA’s drug approval process, including a robust discussion with our external advisory committees, were important in our decision to approve this treatment,” said Dr. Tiffany Farchione, acting director of the FDA’s Center for Drug Evaluation and Research Division of Psychiatry Products, in a release.

As with any other medication, there are risks. Spravato carries a boxed warning for side effects that include misuse, the reason it is administered under a doctor’s supervision. The list of side effects includes sedation and blood pressure spikes and disassociation, such as feelings of physical paralysis and out-of-body experiences. It also can cause suicidal thoughts and behaviors.

Acknowledging the dangers, FDA made esketamine available only through a restricted distribution system.

A veteran prescribed Spravato would inhale the nasal spray at a medical facility while under supervision of a medical provider, and would be monitored for at least two hours after receiving the dose. A typical prescription includes twice-weekly doses the first month, followed by a single dose weekly or biweekly as needed. Spravato cannot be dispensed for home use.

Spravato is made by Janssen Pharmaceuticals, a subsidiary of Johnson & Johnson. It is the first major antidepressant medication to hit the market in 30 years.



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Twitter feed Ketamine – Ablow

Ketamine Seems to Ease Depression. We’ll Soon See What Else It Does.

Clinical trials are not enough to prove any drug is safe and effective – especially one that could be as widely used as Johnson & Johnson’s depression drug esketamine, a slightly altered form of the street drug ketamine. The FDA approval process is a balancing act, weighing safety and efficacy testing against the need to get potentially life-saving drugs out as soon as possible.

An advisory panel to the FDA decided this month that the benefits outweigh the risks, and approval is expected soon. But scientists who study depression say there’s a lot more to learn about esketamine’s long-term effects.

While best known as a recreational drug, ketamine has been used since the 1970s as an anesthetic, in doses much higher than what’s likely to be given to depression patients. The trials so far seem to show that the drug is not highly addictive, according to a story in the medical website STAT. But time will tell.

The most promising clinical trials followed people whose depression had been resistant to conventional therapy. Fifty percent of patients improved when given conventional therapy plus a placebo, as compared to 70 percent who got conventional therapy and esketamine.

Taking the drug will be a lot more complicated than taking Prozac. It’s been formulated so that it can be delivered as a nasal spray, but people have to get the drug at a doctor’s office, and they won’t be allowed to drive for at least 24 hours, said Gerard Sanacora, a Yale University psychiatrist who has been involved in the clinical trials.

He said he believes there’s potential for benefit, because the drug works for some people who get no relief from conventional treatments and because works faster, which might even prevent suicide. But there’s a lot more to learn about the drug’s potential long-term consequences. So far it looks like people will get two treatments a week to start, then one for maintenance. But scientists don’t know whether it can be tapered down further, or discontinued, and whether there’s a risk for relapse, he said.

Sanacora said that ketamine is based on a very different model of how depression works. Standard therapy is based on the principle that depression is a chemical imbalance involving the transmitting chemical serotonin. But an alternative view started to take shape in the 1990s that depression was more of a problem with the connections between neurons, triggered by chronic stress and mediated by something called the glutaminergic system.

Because ketamine interacts with this system, researchers started testing it as a depression drug. Although it seems effective, there’s still no agreement on how depression actually works – and there is some concern that it might work very differently in different patients.

Ketamine can affect cardiovascular health, and in the short term can cause patients to lose their sense of their bodies’ position in space – the sense of proprioception. They sometimes feel their arms are floating.

That hasn’t stopped people from flocking to clinics to get treated with IV ketamine infusions for depression and other problems. This is legal because the drug is approved for anesthesia, and prescribers can use it off-label for other purposes. An investigation by the medical website STAT raised concerns that clinic staff didn’t have the necessary expertise, and there was considerable marketing hype in many cases. The infusions cost between $350 and $1,000 each, and can go on for five or six treatments.

Another red flag popped up last week when the Boston Globe ran a storyabout three women who claim to have been sexually abused by psychiatrist Keith Ablow – a frequent commentator for Fox News. The Globe reported that Ablow was treating the women with ketamine, and one expert cited in the lawsuits said a patient had become “very dependent on this medication and dependent on Dr. Ablow to supply it.”

Ablow’s Twitter feed is full of positive stories about ketamine in places such as Reader’s Digest, followed by a phone number to call for a “free ketamine screening.” The allegations illustration that it’s not just patients that will need to be tracked for abuse, but the doctors as well.

On the positive side, FDA approval would give patients who want the drug a standardized treatment that would be covered by many insurance plans. Approval also creates an opportunity to collect data on longer-term use. (An earlier column exploring the promise of big data in medicine points out that clinical trials are often not long-running enough or big enough to catch even deadly side effects.)

Yale’s Sanacora thinks of the next series of trials as Phase 4. Sanacora also brought up what he poignantly called the “Flowers for Algernon” effect, referring to the short story in which the main character, Charlie Gordon, is treated for an intellectual disability. The treatment works, but eventually wears off, leaving Charlie back where he started. The disappointment makes for a tragic tale. An arc like this would be the last thing depression patients need – though if no other treatment is helping, it might be a risk worth taking.

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NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

Ketamine Virginia Link

NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

Ketamine Virginia Link New depression drug related to ketamine recommended by FDA panel An experimental nasal spray, which has a compound similar to the“club drug” ketamine, has been recommended as a new depression treatment by an advisory panel to the Food and Drug Administration Tuesday. The influential panel voted 14-2 in favor of Johnson & Johnson’s drug esketamine, a treatment developed to treat major depression in patients who have not benefited from at least two different therapies. The panel said the benefits of the nasal spray outweighed the risks. Side effects include dizziness, nausea and an unpleasant feeling of dissociation, according to the company. One member in the panel abstained from voting. Esketamine is a variation of the anesthetic ketamine, which is also abused as a recreational party drug with the street name Special K. Intravenous infusions of ketamine have been shown to help people with severe depression who experience suicidal thoughts, but the researchers expect that the nasal spray will take effect more quickly and be easier to use. “I think esketamine has the potential to be a game-changer in the treatment of depression … I use the term potential because the issues of cost and patient accessibility need to be addressed,” said Walter Dunn, a panel member who voted in favor of the approval The nasal spray acts quickly, showing benefits after four hours. The hope is that the spray can help the 30 percent to 40 percent of patients with major depression who don’t respond to antidepressants, most of which take at least four weeks to take effect. Currently, Eli Lilly’s Symbyax is the only FDA-approved drug for treatment-resistant depression. Major depressive disorder affects over 300 million people globally, and the rate of attempted suicides in people with this condition is about 20-fold higher than that of the general population, according to the company. However, depression is a tricky area of development. Patients in clinical trials often show a big placebo response, masking the efficacy of the drug being tested. The FDA, although not mandated to follow the panel’s recommendation, is expected to announce its decision on esketamine by March 4 blob:https://www.nbcnews.com/7ff5f695-0a1d-45c4-95f5-12627211ac08 New depression drug related to ketamine recommended by FDA panel An experimental nasal spray, which has a compound similar to the“club drug” ketamine, has been recommended as a new depression treatment by an advisory panel to the Food and Drug Administration Tuesday. The influential panel voted 14-2 in favor of Johnson & Johnson’s drug esketamine, a treatment developed to treat major depression in patients who have not benefited from at least two different therapies. The panel said the benefits of the nasal spray outweighed the risks. Side effects include dizziness, nausea and an unpleasant feeling of dissociation, according to the company. One member in the panel abstained from voting. Esketamine is a variation of the anesthetic ketamine, which is also abused as a recreational party drug with the street name Special K. Intravenous infusions of ketamine have been shown to help people with severe depression who experience suicidal thoughts, but the researchers expect that the nasal spray will take effect more quickly and be easier to use. “I think esketamine has the potential to be a game-changer in the treatment of depression … I use the term potential because the issues of cost and patient accessibility need to be addressed,” said Walter Dunn, a panel member who voted in favor of the approval The nasal spray acts quickly, showing benefits after four hours. The hope is that the spray can help the 30 percent to 40 percent of patients with major depression who don’t respond to antidepressants, most of which take at least four weeks to take effect. Currently, Eli Lilly’s Symbyax is the only FDA-approved drug for treatment-resistant depression. Major depressive disorder affects over 300 million people globally, and the rate of attempted suicides in people with this condition is about 20-fold higher than that of the general population, according to the company. However, depression is a tricky area of development. Patients in clinical trials often show a big placebo response, masking the efficacy of the drug being tested. The FDA, although not mandated to follow the panel’s recommendation, is expected to announce its decision on esketamine by March 4 blob:https://www.nbcnews.com/7ff5f695-0a1d-45c4-95f5-12627211ac08

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NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

Ketamine Virginia Link

NOVA Health Recovery | Alexandria, Va 22306 | Call for esketamine and nasal ketamine as well as IV Ketamine for depression, PTSD, anxiety  703-844-0184 < Link

Ketamine Virginia Link

Ketamine-like depression treatment on track for FDA approval

CNN)A ketamine-like drug for treatment-resistant depression was backed by a US Food and Drug Administration advisory committee on Tuesday. If it is then approved by the FDA, the drug — called esketamine — may provide a new option for patients with major depressive disorder who have tried at least two other antidepressants without success.A panel of experts voted to endorse the drug, which is made in nasal spray form by the pharmaceutical company Janssen, a division of Johnson & Johnson. Fourteen members voted that the benefits outweighed the risk, with two opposed and one abstaining.

Ketamine offers lifeline for people with severe depression, suicidal thoughts
703-844-0184 | NOVA Health Recovery | Alexandria, Va 22306

Ketamine offers lifeline for people with severe depression, suicidal thoughtsThe drug is a close relative of ketamine, a powerful medication used in hospitals primarily as an anesthetic; recent scientific studies have also shown its potential with treatment-resistant depression and suicidal ideation. Ketamine is also used recreationally — and illegally — as a club drug known as Special K. It generates an intense high and dissociative effects.Esketamine, which is not FDA-approved for any conditions, targets a different brain pathway than approved antidepressants, many of which have been around for decades. It is expected to be used in combination with antidepressants, but the latter can take a month or two to take effect. Esketamine, on the other hand, might have an effect within hours or days, according to an FDA briefing document.The drug was designated as a breakthrough therapy in 2013, intending to “expedite the development and review of drugs for serious or life-threatening conditions,” the FDA says. First-line treatments don’t work for roughly 30% to 40% of patients with major depressive disorder, according to the briefing document.The FDA does not have to follow the recommendation of advisory committees, though it often does.

ERs 'flooded' with mentally ill patients with no place else to turn

ERs ‘flooded’ with mentally ill patients with no place else to turnHowever, the research behind esketamine has come under some criticism, with two of five key studies failing to meet their primary endpoints. Only one of these studies is a positive short-term trial, whereas most FDA-approved antidepressants are backed by at least two, according to the briefing document. But Janssen has maintained that the overall picture is positive.Adverse events tended to occur in the first two hours patients received the drug, including sedation, blood pressure increases and dissociation. For this reason, patients wouldn’t be able to pick it up at a local pharmacy; it would be given under the supervision of health care professionals who can keep an eye on the person during those first two hours.Because of the drug’s close relationship to ketamine, experts have also raised concerns about its potential for misuse and abuse. The clinical trials have not seen evidence of this risk, according to presentations made during the meeting.Advisory panelists also expressed concern that not enough long-term data was available to characterize the drug’s cognitive effects and other health impacts down the line.Get CNN Health’s weekly newsletter

There were six deaths of patients taking esketamine in trials, including three suicides, but FDA materials concluded “it is difficult to consider these deaths as drug-related.”The only current FDA-approved medication for treatment-resistant depression combines two other drugs already on the market. Other non-pharmaceutical treatments exist, such as electroconvulsive therapy.Janssen spokesman Greg Panico said no information about pricing would be available at this time. An FDA decision is expected in early March, he added.



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Combined Treatment With Naltrexone, Ketamine Effective for Depressive Symptoms

Ketamine
Participants who received the naltrexone and ketamine regimen reported an improvement in depressive symptoms.

The effectiveness of ketamine as an antidepressant has been mitigated by concerns of possible abuse and suggestions that the antidepressant effects might be dependent on opiate receptor stimulation. However, results from a case series published in JAMA Psychiatry support the efficacy of combined naltrexone and ketamine treatment for depressive symptoms.

Investigators conducted an 8-week open-label pilot study of 5 patients with current major depressive disorder and alcohol use disorder. Patients received a single dose of injectable naltrexone (380 mg) 2 to 6 days prior to the first ketamine treatment, followed by 4 weeks of ketamine infusions (0.5 mg/kg once a week). Patients were assessed at baseline and at 4 hours after each infusion with the Montgomery Åsberg Depression Rating Scale. The primary outcome measure was a 50% or higher improvement from baseline Montgomery Åsberg Depression Rating Scale score. All patients were abstinent from alcohol for 5 days or longer prior to the initial ketamine infusion.

Combined treatment with naltrexone and ketamine was associated with a significant reduction in depressive symptoms. Three of 5 patients (60%) met response criteria following initial ketamine dose, and 5 of 5 patients (100%) met response criteria by the fourth dose, although 1 patient left the trial following 2 ketamine infusions. Symptoms improved by 57% to 92%, depending on the patient. In addition, 4 of 5 patients (80%) reported a reduction in alcohol craving and consumption per the Obsessive Compulsive Drinking Scale. Combined treatment was safe and well tolerated. No serious adverse events were reported in the trial.

These results challenge existing data that pretreatment with naltrexone may interfere with the antidepressant properties of ketamine. Research with a larger cohort is necessary to further investigate the efficacy of combination treatment with naltrexone and ketamine for depression.

Reference

Yoon G, Petrakis IL, Krystal JH. Association of combined naltrexone and ketamine with depressive symptoms in a case series of patients with depression and alcohol use disorder [published online January 9, 2019]. JAMA Psychiatry. doi: 10.1001/jamapsychiatry.2018.3990

Association of Combined Naltrexone and Ketamine with depressive symptoms in a case series of patients with depression and AUD

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NEW VARIATION OF KETAMINE TO BE APPROVED BY FDA FOR TREATMENT OF DEPRESSION

“The biggest breakthrough in depression treatment since Prozac”

  • 6 FEBRUARY 2019
New variation of ketamine to be approved by FDA for treatment of depression

Back in July of 2017, the world’s first ketamine trial for depression proved to be “incredibly effective” in curing elderly patients. The drug, often referred to as Special K, is a popular substance found clubland culture, but recent breakthrough studies and the development of chemical variations of ketamine has shown that the drug is a powerful tool that can help save lives and allow people to live life to the fullest potential.

According to Bloomberg, the Food and Drug Administration (FDA) has cleared the way for the first drug based on ketamine, from Johnson & Johnson, to gain approval as soon as March 2019. The ketamine variant, called esketamine, may very well become the first-ever rapid-acting antidepressant for suicidal patients and “treatment-resistant depression”. While physicians are still unsure about the long term effects of the drug and more trials need to be conducted in order to get to the root of its effectiveness, many doctors think esketamine may be “the biggest breakthrough in depression treatment since Prozac”.

The long-form story published in Bloomberg tells the stories of multiple people who have benefited from ketamine treatment and how the rapid development of this new miracle drug is being used to combat the skyrocketing rate of suicide in the United States (up 33 per cent in the last 20 years).

The drug esketamine provides “a quick molecular reset button for brains impaired by stress or depression”. Initially developed as an intravenous drug, Johnson & Johnson has developed a nasal solution that has the same effect. The initial study of the drug involved 68 people at high risk that were all antidepressants and other treatment – no placebos were used on actively suicidal patients. Of those who were given esketamine, 40 per cent were deemed “no longer at risk of killing themselves within 24 hours”.

As physicians and investors race to find out more about this supposed miracle drug, concerns remain that a new abuse crisis – similar to that of the current opioid crisis – may arise following federal approval of the substance.

Check out the captivating story behind these successful studies here

Learn more about ketamine’s colorful clubland history here.

Find out how we survived an unconventional, silly, hilarious and definitely brilliant musical about ketamine here.