Be the change you wish to see – or walk away. Money at NIH


 

 

A Turning Point

 

$$$$$ MONEY $$$$$

 

at NIH

 

May not come this way again

 

NIH developing

5-year NIH-wide Strategic Plan

 

 

 

Donate to organizations, below

They can provide feedback to NIH via the

RFI Submission site


 

 

 

John C. Liebeskind, 1935 – 1997, distinguished scholar and researcher, past president of the American Pain Society, had the radical idea that pain can affect your health.

 

Research decades ago by an Israeli team at UCLA and others had shown “that pain can accelerate the growth of tumors and increase mortality after tumor challenge.” Decades ago Professor Liebeskind lectured all over the country: Pain kills.

 

He wrote an editorial in 1991, summarizing a life’s work:

 

“Pain and stress can inhibit immune function.”

 

 

Quoting John Bonica, the father of modern pain management, he wrote:

 

“Bonica has long argued that the term ‘chronic benign pain’ (used in distinction to pain associated with cancer) is seriously misleading.  Chronic pain is never benign, he contends; “it is a ‘malefic force’ that can devastate its victims’ lives and even lead to suicide.”

 

 

Liebeskind continues, “It appears that the dictum ‘pain does not kill,’ sometimes invoked to justify ignoring pain complaints, may be dangerously wrong.”

 

Pain mediates immune function

 

Importantly

 

  Opioids mediate the suppressive effect of stress on natural killer cells,

 

 published in 1984, immune system.

 

Alcohol increases tumor progression, 1992, immune system.

 

It used to be news.

He did not live to see change.

 

People just want to go on doing what they’re doing.

They want business as usual.

 

 

After 1991, we saw the great discoveries of neuroinflammation, pioneered by Linda Watkins, PhD, the early understanding of the innate immune system, its involvement in chronic pain and depression, and a few weeks ago, a British team showed neuroinflammation in teens with early signs of schizophrenia and DNA markers.

 

 

Major Depression has the same neuro-inflammation found in chronic pain, often responding to same medications, in particular glial modulators – immune modulators. Now, perhaps early schizophrenia will respond to glial modulators, reducing inflammation seen on scan in teens, before they become homeless and burned out by antipsychotic drugs

 

Inflammation out of control destroys neurons

 

Fire on the brain

 

 

We must be the change we wish to see

 

It’s not just the Bern. It’s been starting. Forces are finally coming together. We want change. It’s been too much. Too long.

 

We won’t take it anymore.

 

I figure if I tell you about it, you might just mention it to someone to pass it on. That is all. One small action may lead to change. Activate inputs to the NIH strategic plan.

 

 

~ Action needed ~

 

Prices of drugs becoming unaffordable

No new drugs for pain or major depression

Research to repurpose existing drugs

Expose the politics destroying our compounding pharmacies

 

Above all

The #1

Major Priority:

Request NIH to solicit priority call for research on

Glial modulators of the

Innate immune system

 

 

Why?

 

Glia modulate

chronic pain, major depression

and almost every known disease

 

Glia are your innate immune system

 

Inflammation kills

 

 

 

 Stress kills. Inflammation kills.

 

 

Pain kills

 

In the 1970’s, Professor Liebeskind and an Israeli team at UCLA injected cancer cells to two groups of rats that had sham surgery. Cancer spread much faster and killed far sooner in the group with poor treatment of surgical pain.

 

 

~ Pain kills ~

 

He lectured all over the country

 

Forty five years ago

 

 

I’m gonna be dead before I see this country do anything but unaffordable opioids and the magical ineffective trio of gabapentin, Lyrica, Cymbalta to treat chronic pain. The devastating, blind, nationwide emphasis does nothing to address the cause: inflammation, the innate immune system gone wild.


 

 

Innate immune system in action

 

Untreated pain suppresses the hormone systems too.

 

Untreated depression – same inflammation kills lives.

 

Where’s the money?

 

We are the change we wish to see. It’s pitiful I am so lazy. Suddenly, too late, we may need something, but, aha, no new drugs in the pipeline.

 

 

 

~ Make a joyful cry to NIH ~

 

They are soliciting input from professional societies

 

If your condition has failed all known drugs for pain or major depression, then make a joyful cry to NIH, now, before they give away all that nice new $$$$$money$$$$$.

 

 

Follow and join

 

American Pain Society

 

 

International Association for Pain

celebrating 40 years of pain research

 

 

Reflex Sympathetic Dystrophy Syndrome Association

help for CRPS/RSD  

 

 

 

The key to CRPS/RSD pain will apply to all forms of chronic pain, in particular the most difficult form, neuropathic pain. RSDSA funds research into all forms of chronic pain, not only Complex Regional Pain Syndrome (CRPS/RSD). Their scientific board members are not funded by opioid money.

 

 

 

Exactly

what is the annual cost of care

as fraction of GDP

for the growing population of Americans on opioids

for one year, for lifetime?

 

 

People are dying from prescription opioids and those who need them find they don’t work well enough. Prescriptions opioid costs must be a huge fraction of the medical costs in the United States GDP. You are required  to see a doctor every single month each year, often lifelong, just for one opioid, 12 months a year x 30 years x tens of millions of people and increasing – a growth industry. Not even counting $600 a day for the opioid, what the cost of monthly visits for 30 years? Not counting the army of DEA, FDA, CDC agents watching the opioids like a hawk. We all have to be sharp, addiction is growing. Addiction aside, deaths from prescription opioids are shaking up the CDC forcing urgent change this coming month.

 

 

 

Opioids do not work well for chronic pain

We need better

It’s not just the $600/day price

They just don’t work

 

 

donate

 

 

Raise a joyful noise at NIH now or write back at us readers with comments and better suggestions. Tell others what you’d like to see. Which politicians do you know would be most interested in this at national levels and organizations?

 

You may never see this change unless you do it now. Other forces will get this new money.

 

 

Turning point now

May not return

 

 

We are at a turning point and we will fail to catch the sail that’s coming fast to carry all research money in their shiny big stem cell direction. They never look back.

 

 

There is so many medications we can use today, FDA approved drugs that can be re-purposed and applied to recent cutting edge science. Someone must pay to do the work to study this.

 

 

Re-purpose old drugs

 

 

Stanford just showed a popular generic drug improved recovery of stroke paralysis in mice to begin at 3 days rather than 30. Old drug, new purpose, of course more years of testing to confirm in humans. Brilliant team applying new science.

 

 

Request
NIH to solicit a

Special Invitation

for 30 good protocols to

repurpose old drugs

 

 

Hundreds of old drugs, already approved, could be involved in mechanisms we have recently learned about. Speak up or money will go to shiny new stem cells. None for chronic pain or major depression. No company will find this profitable – it must be funded by NIH. A popular generic sleeping pill can bring astonishing return from stroke paralysis.

 

 

Congress has not opened this new money to NIH in many long years. How often will there be extra money?

 

 

donate

 

 

Lawrence A. Tabak, D.D.S., Ph.D.
Principal Deputy Director, NIH, solicits you to

Review the NIH Strategic Initiative Plan and their

Request for Information (RFI) and the NIH website

and provide your feedback via the RFI Submission site

 

 

This is for “stakeholder organizations (e.g., patient advocacy groups, professional societies) to submit a single response reflective of the views of the organization/membership as a whole. We also will be hosting webinars to gather additional input. These webinars will be held in early to mid-August.

 

 

 

Be the change you wish to see

Donate to those organizations

to solicit the change you wish to be

 

 

 

Happy New Year

Rejoice!

There’s money at NIH

 

 

 

 

 

 

The material on this site is for informational purposes only.

It is not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider.

Relevant comments are welcome.

If any questions, please schedule an appointment with my office.

This site is not for email.

~~~~~

For My Home Page, click here:  Welcome to my Weblog on Pain Management!

 

 

 

 

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Treatment for Pain Could Last Months: Botox & Tetanus Chimera Injection


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Professor Bazbek Davletov now at Sheffield University, UK, reports his research that is featured on the cover of the October 2013 journal Bioconjugate Chemistry. He hopes the drug will cost around £1,000 a year, making it cheap enough for use on the NHS. It is authored by a 22-person team from 11 research institutes, including Lincoln University UK based Dr Enrico Ferrari.

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Dr Ferrari joined the School of Life Sciences in October last year from the Medical Research Council’s Laboratory of Molecular Biology in Cambridge, where he took part in the development of a new way of joining and rebuilding molecules in the research group of Professor Bazbek Davletov who was then at the MRC.

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Taking components of clostridium botulinum and clostridium tetani neurotoxins – known as Botox and tetanus toxin – they re-joined the molecule proteins using a ‘protein stapling’ technology targeting central neurons without unwanted toxic effects.

.

Science Daily announcement:

‘Chimera’ Protein Could Lead to Drug Treatments for Chronic Pain

 .

Lincoln University, UK, heralds this promising discovery:

Scientists synthesise new ‘chimera’ protein which could herald future drug treatments for chronic pain

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“Scientists have manufactured a new bio-therapeutic molecule that could be used to treat neurological disorders such as chronic pain and epilepsy.”

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The molecule was able to alleviate hypersensitivity to inflammatory pain.

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“Dr Ferrari, who is one of the lead authors of the study, said: “The toxins were split into parts so they were unable to function. Then later they were reassembled using a ‘zipping’ system so they can operate in a safe way. The re-engineered chimera toxin has very similar characteristics to Botox and is still able to block neurotransmission release, but the paralytic effect is a lot less. We then added a tetanus molecule which targets the chimera to where the pain signals travel towards the central nervous system.””

.

“Dr Ferrari added: “Many painkillers relieve the pain temporarily and have various side effects. The selling point of this molecule is that the pain relief could last up to seven months….””

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The material on this site is for informational purposes only.

It is not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider.

~~~~~

Please understand that it is not legal for me

to give medical advice without a consultation.

If you wish an appointment, please telephone my office.

.

For My Home Page, click here:  Welcome to my Weblog on Pain Management!

.

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PeaPure – Palmitoylethanolamide for Nerve Pain or Migraine


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PeaPure is a glial modulator. It is available in Italy and the Netherlands as a food supplement and has been studied in multicenter clinical trials in Europe for several years. It is well tolerated with no side effects and is very helpful for neuropathic pain, headache, and osteoarthritis. It is anti-inflammatory and neuroprotective.

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Because it inhibits astrocyte activation and the over-expression of pro-inflammatory molecules and signals, it is being investigated in Alzheimer’s Disease.

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The mechanism of action of PEA was discovered in 1993 by Nobel laureate Rita Levi-Montalcini in her work on nerve growth factors. She found it is involved in metabolism of mast cells and published a series of papers on its self-healing effect of the body in response to inflammation and pain. Two recent publications from Jan M Keppel Hesselink, MD, PhD, and his colleagues at the Institute for Neuropathic Pain, Amsterdam, The Netherlands, describe case reports, one of which is the case of a woman with CRPS.

.

The purpose of this post is to clarify dosing of PeaPure and how to take it for a sudden flare of pain. My apologies for failing to recall the source of these instructions which I believe was from the manufacturer and from here and here. The latter includes an excellent review of its mechanism.

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Description of PeaPure® 400 mg capsules
PeaPure® is a food supplement based on a natural and fatty-acid like compound.
The substance palmitoylethanolamide (PEA) is a physiologically active molecule that the body produces naturally.
.
What the user should know prior to ingestion:
•    There are no known significant side effects.
•    PeaPure® can be taken simultaneously with other medicine. In case of doubt, it is recommended to first consult your doctor or a pharmacist.
•    Use during pregnancy is NOT recommended.
•    PeaPure® does not contain sugar, yeast, allergens, sorbitol, magnesium stearate, povidone or other ingredients.

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Dosage and administration – please refer to the manufacturer.

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UPDATE SEPTEMBER 2014

.

It is with a heavy heart that I report this news:

.

Palmitoylethanolamide is

now available only from the Netherlands,

sold as PeaPure, a food supplement.

  It is no longer able to be imported by a pharmacy, but we are hoping

that may change if we can interest a supplement manufacturer to make it available for the US.

Patent rights, attorneys are far beyond the resources of my local pharmacy.

 

.

I have published this year, 2014, on the treatment of

vulvodynia and proctodynia with PeaPure and a topical cream.

.

There are no studies to show us how often it may relieve nerve pain, but it is astonishing when it works. No toxicity, no side effects. Your brain makes it, plants make it. There is a growing literature on it and I have posted on some of its mechanisms. And in particular, its Anti-inflammatory, Analgesic, Neuroprotective Mechanisms.

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.


The material on this site is for informational purposes only, and is not a substitute for

medical advice, diagnosis or treatment provided by a qualified health care provider.

.

~

Please understand that it is not legal for me to give medical advice without a consultation.

If you wish an appointment, please telephone my office or contact your local psychiatrist.

~

~

For My Home Page, click here:  Welcome to my Weblog on Pain Management!

~
.
.

Ketamine Intranasal for Rapid Relief of Pain and Depression


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Poorly managed pain can evolve into chronic disease of the nervous system

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Ketamine is an important analgesic, more important than opioids. It can dramatically reduce pain, and rapidly relieve depression and PTSD.  Please read my earlier posts here and here. And the NPR report here just after I posted this (skip to their last section). Yes, it is FDA approved and legal. One woman said:

.

 ‘It was almost immediate, the sense of calmness and relaxation.

‘No more fogginess. No more heaviness. I feel like I’m a clean slate right now. I want to go home and see friends or, you know, go to the grocery store and cook the family dinner.’

.

NPR again reports ketamine’s rapid relief of depression. A 28 year old man whose refractory depression began at age 15, after ketamine, says:

.

‘I Wanted To Live Life’

.
Stephens himself has vivid memories of the day he got ketamine. It was a Monday morning and he woke up feeling really bad, he says. His mood was still dark when doctors put in an IV and delivered the drug.”Monday afternoon I felt like a completely different person,” he says. “I woke up Tuesday morning and I said, ‘Wow, there’s stuff I want to do today.’ And I woke up Wednesday morning and Thursday morning and I actually wanted to do things. I wanted to live life.”.
.
Since then, they treated him with Riluzole that is FDA approved for ALS and has one of the dirtiest side effect profiles I have ever seen in medicine with serious organ toxicity. Ketamine rarely causes mild transient side effects, usually none. It appears the concern is how ketamine is used on the street with potential for abuse. I do not see ketamine abuse in my patients, some of whom are on opioids for pain or Valium family medicines from their psychiatrist. All of those have a greater potential for abuse, also not occurring in my patients. Pain and/or depression can lead to suicide.
.
About 18 months ago, researchers at Yale found a possible explanation for ketamine’s effectiveness. It seems to affect the glutamate system in a way that causes brain cells to form new connections.
.
Researchers have long suspected that stress and depression weaken some connections among brain cells. Ketamine appears to reverse the process.

.

It would be of interest to see a case report of the bladder problems they mention. Is this in a single drug addict who used many unknown medications on the street? Several physicians have infused IV ketamine for persons with pain for many years, in far higher doses than I prescribe, with no report of any but transient minor symptoms.

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David Barsook’s 2009 review, reference below, describes changes that cause memory loss and brain atrophy with chronic pain, in particular, Complex Regional Pain Syndrome (CRPS), and they also occur with chronic depression:

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With the onset of chronic pain (including CRPS) a number of changes in brain function occur in the human brain including but not limited to: (1) central sensitization ; (2) functional plasticity in chronic pain and in CRPS; (3) gray matter volume loss in CRPS ; (4) chemical alterations; and (5) altered modulatory controls. Such changes are thought to be in part a result of excitatory amino acid release in chronic pain. Excitatory amino acids are present throughout the brain and are normally involved in neural transmission but may contribute to altered function with excessive release producing increased influx of calcium and potentially neural death.

.

Brain atrophy and memory loss has also been shown in chronic low back pain as well as in chronic depression.

~

Barriers to management of chronic pain are many:

~

Although opioids are effective for acute pain, effective treatment of chronic pain is often daunting, particularly neuropathic pain.

~

Opioids have been shown to create pain causing imbalance in the glial cytokines that favor pain rather than relief of pain. Opioids carry the risk of opioid-induced hyperalgesia which is a severe pain sensitivity. They affect the brain and endocrine system. Opioids may fail to offer significant relief, fail to improve function, and risk misuse, abuse, diversion and death. Their costs are astronomic, insurance coverage is increasingly limited, the potential for complications may be life threatening in a hectic medical setting, side effects can be lethal, lack of physician training in use of opioids and alternatives to pain control lead to increasing deaths, addiction and diversion. It has become a national emergency and a trillion dollar war on drugs.

~

Complications can be greatly reduced through use of a scrupulous history and physical examination, but reimbursement is directly proportional to the shortest time spent with a patient. Will that help assessment and care?

~

Individuals may have dramatically different responses to opioid therapy; some may not tolerate any, and relief must be balanced with side effects that increase as the dose increases. Patient status may change and require IV, rectal or tube delivery instead of oral formulas; drug-drug interactions may require rapid changes, and disease of kidney, liver or brain may require modifications or stopping altogether. They may increase risk of falls and cause central sleep apnea with drop in oxygen because the brain fails to give a signal to breathe.

~

Chronic pain can lead to loss of sleep, hopelessness, depression, anger and other mood disorders such as panic, anxiety, hypochondriasis and post traumatic stress disorder [PTSD]. Treatment of mood disorders are shown to profoundly reduce pain perception and/or ability to cope with pain.

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Ketamine is anti-inflammatory and can reduce the need for opioid use, thus reducing the pain and side effects caused by opioids.

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Nasal ketamine is more effective than oral ketamine for pain relief; oral dosing has no effect on depression.

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Nasal delivery of ketamine is now possible due to advances in metered nasal sprayers that deliver a precise dose. No needle is required, no IV access, no travel to a specialist needed.

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You can carry pain relief with you and use it as directed when it is needed.

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Ketamine is an NMDA antagonist: it antagonizes the NMDA receptor which plays a profound role in pain systems and centralization of pain.

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Ketamine is neuroprotective and it can help other disease states as noted by Barsook, 2009:

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Besides improvement in pain, “there may be lessons from other diseases that affect the brain; it is noteworthy that acute ketamine doses seem to reverse depression and ketamine decreased prevalence of post-traumatic stress disorder (PTSD) in soldiers receiving ketamine during their surgery for treatment of their burns. In addition ketamine attenuates post-operative cognitive dysfunction following cardiac surgery that has been known to produce significant changes in cognition. [emphasis mine] The data suggest that the drug can alter or prevent other conditions based on its NMDAR activity where other drugs NMDA receptor antagonists are perhaps not as effective in these or pain conditions. Lastly, NMDA antagonists have been used in degenerative disease (and pain may be considered a degenerative disease as defined by loss of gray matter volume, see above) with mixed effects perhaps relating to how they act on specific NMDA subtypes. Taken together, ketamine may act not only on sensory systems affecting pain intensity, but also on a constellation of brain regions that are involved in the pain phentype. [sic, phenotype]”

~

Side Effects

~

Ketamine is more frequently used in babies and children than in adults because high doses of ketamine can induce hallucinations in the adult. Importantly, it is used in high dose in adults for treatment of Complex Regional Pain Syndrome.

Low doses, cause little or no side effects in adults. If present, they are transient and often resolve in 20 minutes. Patient who respond to ketamine report good acceptance as they find the relief of pain and/or depression far outweighs any short term minimal discomfort.

~

Pain care reform is urgently needed.

~

Research funding for pain is less than half of one percent of the NIH budget. More research is needed, but research on low dose ketamine for treatment of pain and depression has gone on for twenty years.

The public health crisis of untreated pain, which often results in disability, parallels the country’s struggle to halt the cost of health care. The longer a person remains with untreated pain, the less likely they are to return to work or to be employable.

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Conclusion

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Pain control requires urgent attention. It is past time to put into practice the use of this valuable medication so people can get on with life instead of being mired in chronic pain that for many risks suicide and ensures continuing decades of disability. Academic studies are usually limited by defining a predetermined dose rather than clinically titrating to effect. Thus no surprise, they find no effect as every patient will have no response until they reach their dose. And that dose, in my experience, falls into a bell shaped curve. One size does not fit all. Some respond at very low dose, others require much more, and the majority fall between.

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In my experience prescribing ketamine for ten years, only a rare person has problems. Almost all find it has returned function or significantly relieved pain. Some have been able to entirely eliminate opioids that did nothing for their pain for decades, though they dutifully returned to the MD every month to chronicle that pain. Pain continued to be rated ten on a scale of ten; patient always compliant despite side effects of constipation and often depression. My patients find the benefits of nasal ketamine far outweigh the relief of oral ketamine and at much lower doses with fewer side effects.

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Further, while the pain relief may be short lived, some find it gets better with repeat dosing, and relief of depression may last one to two weeks with a single dose.

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References

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http://www.wjgnet.com/1007-9327/10/1028.asp  Ketamine suppresses intestinal NF-kappa B activation and proinflammatory cytokine in endotoxic rats.

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CONCLUSION: Ketamine can suppress endotoxin-induced production of proinflammatory cytokines such as TNF-a and IL-6 production in the intestine. This suppressive effect may act through inhibiting NF-kappa B.

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http://informahealthcare.com/doi/abs/10.1080/J354v16n03_03  Ketamine as an Analgesic Parenteral, Oral, Rectal, Subcutaneous, Transdermal and Intranasal Administration

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Ketamine is a parenteral anesthetic agent that provides analgesic activity at sub-anesthetic doses. It is an N-methyl-D-aspartate (NMDA) receptor antagonist with opioid receptor activity. Controlled studies and case reports on ketamine demonstrate efficacy in neuropathic and nociceptive pain. Because ketamine is a phencyclidine analogue, it has some of the psychological adverse effects found with that hallucinogen, especially in adults. Therefore, ketamine is not routinely used as an anesthetic in adult patients. It is a frequently used veterinary anesthetic, and is used more frequently in children than in adults. The psychotomimetic effects have prompted the DEA to classify ketamine as a Schedule III Controlled Substance. A review of the literature documents the analgesic use of ketamine by anesthesiologists and pain specialists in patients who have been refractory to standard analgesic medication regimens. Most reports demonstrate no or mild psychotomimetic effects when ketamine is dosed at sub-anesthetic doses. Patients who respond to ketamine tend to demonstrate dramatic pain relief that obviates the desire to stop treatment due to psychotomimetic effects (including hallucinations and extracorporeal experiences). Ketamine is approved by the FDA for intravenous and intramuscular administration. Use of this drug by the oral, intranasal, transdermal, rectal, and subcutaneous routes has been reported with analgesic efficacy in treating nociceptive and neuropathic pain.
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http://www.ncbi.nlm.nih.gov/pubmed/15109503  Safety and efficacy of intranasal ketamine for the treatment of breakthrough pain in patients with chronic pain: a randomized, double-blind, placebo-controlled, crossover study  Daniel Carr, et al, 2004
Crossover, 20 patients. Ketamine reduced breakthrough pain within 10min of dosing, lasting up to 60min
~
http://www.ncbi.nlm.nih.gov/pubmed/15288418  Safety and efficacy of intranasal ketamine in a mixed population with chronic pain
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The intranasal route for ketamine administration has been applied only for pain of dressing changes in a single case study (Kulbe, 1998). In this patient, oxycodone and acetaminophen were ineffective to control pain during burn dressing changes in a 96-year-old woman cared for at home. She tolerated the burn dressing changes after three intranasal sprays of 0.1 ml each, in rapid succession, each containing 5 mg ketamine (15 mg total) (Kulbe, 1998).
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http://www.acutepainjournal.com/article/S1366-0071%2807%2900167-2/abstract  Safety and efficacy of intranasal ketamine for acute postoperative pain
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Ketamine delivered intranasally was well tolerated. Statistically significant analgesia, superior to placebo, was observed with the highest dose tested, 50 mg, over a 3 h period. Rapid onset of analgesia was reported (<10 min), and meaningful pain relief was achieved within 15 min of the 50 mg dose. The majority of adverse events were mild/weak and transient. No untoward effects were observed on vital signs, pulse oximetry, and nasal examination. At the doses tested, no significant dissociative effects were evident using the Side Effects Rating Scale for Dissociative Anaesthetics.
The safety profile following treatment with ketamine was comparable to that seen with placebo.
Although patients did report side effects of fatigue, dizziness and feelings of unreality more often following treatment with ketamine than following treatment with placebo, no patient reported hallucinations and the side effects were generally reported to be of mild or moderate severity, and transient. No serious adverse events were reported and the incidences of associated adverse events were comparable for ketamine and placebo. Although study medication was administered intranasally, nasal signs and symptoms were few and inconsequential. A distinctive taste, however, was reported more often following treatment with ketamine than following treatment with placebo.In conclusion this randomized, placebo-controlled, double-blind study, in 20 patients, has demonstrated that intranasal ketamine is safe and effective for BTP [breakthrough pain]. Our findings augment an early but promising literature documenting the effectiveness of nasal administration of a variety of opioids for pain management in adults (Dale et al., 2002) .
~
~http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2875542/

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2875542/  Ketamine and chronic pain – Going the distance, David Barsook, 2009

~

This important paper covers essential points not mentioned by many, thus quoted at length below:

“Ketamine, brain function and therapeutic effect – neuroprotective or neurotoxic

With the onset of chronic pain (including CRPS) a number of changes in brain function occur in the human brain including but not limited to: (1) central sensitization ; (2) functional plasticity in chronic pain and in CRPS; (3) gray matter volume loss in CRPS ; (4) chemical alterations ; and (5) altered modulatory controls. Such changes are thought to be in part a result of excitatory amino acid release in chronic pain. Excitatory amino acids are present throughout the brain and are normally involved in neural transmission but may contribute to altered function with excessive release producing increased influx of calcium and potentially neural death. Here lies the conundrum the use of an agent that potentially deleteriously affect neurons that may already be compromised but may also have neuroprotective properties by mechanisms that include reducing phosphorylation of glutamate receptors resulting in decreased glutamatergic synaptic transmission and reduced potential excitotoxicity . Alternatively, ketamine may affect glia regulation of glutamate and inhibit glutamate release within glia. However, by whatever mechanism ketamine acts on CRPS pain, there does seem to be a dose/duration effect in that longer doses at levels tolerated by patients seem to prove more effective in terms of the duration of effects.

So what could be happening in the brain and what is required to alter brain systems and reverse the symptomatic state? Ketamine may diminish glutamate transmission and “resets” brain circuits, but it seems that a minimal dose and/or duration of treatment is required. Alternatively, ketamine may produce neurotoxicity and damage or produce a chemical lesion of affected neurons. These two issues are important to be understood in future trials. Reports from patients who have had anesthetic doses have included prolonged pain relief for many months. While the authors did not address issues such as the effect of dosing duration or repetitive dosing at say 6weeks, they did show a level of efficacy based on NNT that equals or betters most drug trials for this condition.”

….

“Conclusions

As a community we have a major opportunity to define the efficacy and use of a drug that may offer more to CRPS (and perhaps other) patients than is currently available. This is clearly an opportunity that needs urgent attention and a number of questions remain to be answered. For example, is ketamine more effective in early stage disease? How does ketamine provide long-term effects? Further controlled trials evaluating dose, duration, anesthetic vs. non-anesthetic dosing are needed. Few of us really understand what it is like to suffer from a chronic pain condition such as CRPS. Ketamine therapy may be a way forward that can be brought into our clinical practice through further controlled studies that will allow for appropriate standards for use in patients.”

 

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The material on this site is for informational purposes only, and is not a substitute for medical advice,
diagnosis or treatment provided by a qualified health care provider.
.
~

Please understand that it is not legal for me to give medical advice without a consultation.

If you wish an appointment, please telephone my office or contact your local psychiatrist.

~
~
For My Home Page, click here:  Welcome to my Weblog on Pain Management!
~
~
~
~
~

LDN World Database – Low Dose Naltrexone


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This is a database of persons who have tried low dose naltrexone, their diagnosis, dosage and response to it, if any. The database lists many different medical conditions.

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For example, persons with Multiple Sclerosis, will choose the link above, that has hundreds of persons with MS who have tried naltrexone. Don’t forget to see more pages once you reach the bottom. For a graph of the overall responses, then go back to the main link on Multiple Sclerosis where you see these choices:

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To view the database please click HERE

To view the Graph on how people feel about LDN please click HERE

To add your experience with LDN please click HERE – of course first select the condition you have, so your entry falls into the proper category.

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If your condition is different, just select the condition from the list on left.

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For example for fibromyalgia:

To view the database please click HERE

To view the Graph on how people feel about LDN please click HERE

To add your experience with LDN please click HERE

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Here for Irritable Bowel Syndrome, Crohn’s or Ulcerative Colitis.

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If your condition is not listed, check Other on the left side of the list.

This forum is from LDN Research Trust, a registered non-profit Charity based in the UK, with participants from many countries internationally.

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I will soon be posting several case reports of my patient responders, persons with intractable pain from various conditions. Some have been pain free one or two years on naltrexone. Some who had years of previously intractable pain have responded to low dose naltrexone and remained pain free more than one year after discontinuing LDN.

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MECHANISM

for those who like to know the science

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We have known for decades that naltrexone binds to the mu opioid receptor. It blocks the effect of opioids like morphine at the mu receptor. We now know it also acts at another receptor.

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You may wish to watch this video that explains Toll Like Receptors, TLRs for short. This is a lecture by Dr. Rachel Allen, whose PhD in immunology is from Oxford University. After that, she worked at Cambridge University on innate immune receptors such as the TLR’s.

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In 2008, it was shown that naltrexone binds at one of the Toll Like Receptors, the TLR4 receptor. There are 13 Toll Like Receptors, and so far they have studied naltrexone only at one of them, the TLR4. That is important because the TLR receptors are part of the innate immune system.

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The Toll Like Receptors are not like other receptors. Not these snug little pockets where naltrexone binds. Instead the Toll Like Receptors are like an entire football field, with enormous nooks and crannies where it has many interactions with many molecules. Now, in 2010, scientists are asking if naloxone or naltrexone is acting at TLR4 or even higher up in the cascade.

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The study of immune cell glial interactions is in its infancy. Glial cells are the immune cells in your central nervous system (brain, spinal cord). They are very involved in dysregulation of pain systems, neuroinflammation, and some neurological diseases such as Multiple Sclerosis, Alzheimer’s, Parkinson’s Disease, ALS, infections of the brain, etc.

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One of our distinguished glial scientists, Linda Watkins, PhD, in October 2010, said we are not even sure naltrexone binds to the Toll Like Receptor. Rather, it involves AKT1, close to the TLR4 receptor, very very high up in the cascade at the dimerization step, the recruitment of CD14. This is being worked out now.

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Dr. Watkins with Kennar Rice, PhD, from NIH/NIDA, et al, has a paper in press in Cell:

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Glial activation participates in the mediation of pain including neuropathic pain, due to release of neuroexcitatory, proinflammatory products. Glial activation is now known to occur in response to opioids as well. Opioid-induced glial activation opposes opioid analgesia and enhances opioid tolerance, dependence, reward and respiratory depression. Such effects can occur, not via classical opioid receptors, but rather via non-stereoselective activation of toll-like receptor 4 (TLR4), a recently recognized key glial receptor participating in neuropathic pain as well. This discovery identifies a means for separating the beneficial actions of opioids (opioid receptor mediated) from the unwanted side-effects (TLR4/glial mediated) by pharmacologically targeting TLR4. Such a drug should be a stand-alone therapeutic for treating neuropathic pain as well. Excitingly, with newly-established clinical trials of two glial modulators for treating neuropathic pain and improving the utility of opioids, translation from rats-to-humans now begins with the promise of improved clinical pain control.

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For chronic pain, targets of interest are: glial attenuation, p38 MAPK inhibition.

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Of interest, a commonly prescribed pain medication, amitriptyline, is a TLR4 inhibitor (Hutchinson, 2010).

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You can read many new publications on glia that I posted on my site here, or find it from the banner at top:

Donate to Eliminate Neuropathic Pain

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I am a member of a Neuroinflammation Research Consortium that will be studying these many conditions, some that are painful, others that are not. They involve glia and neuroinflammation.

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For more discussion of mechanisms of action of naltrexone and other publications I have posted, see here, particularly the paper by Zhang, Hong, Kim et al.

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Finally, for those who may feel they are losing heart because medicine has been too slow to adopt the use of low dose naltrexone, let me point this out:

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Dr. Linda Watkins is a University of Colorado Distinguished Professor of Psychology & Neuroscience at the University of Colorado Boulder. She is a world-renown leader in glia research and the neurological applications of glial attenuation, with a focus on alleviation of chronic pain. She is the recipient of the highest award for distinguished basic science research from the American Pain Society and the 2010 John Liebeskind Pain Management Research Award from the American Academy of Pain Management. She has over 300 peer-reviewed publications including articles in Nature, Science, Nature Neuroscience, and Journal of Neuroscience. She received over $2 million in NIH grants supporting 6 generations of IL-10 gene therapy research culminating in XT-101.

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The material on this site is for informational purposes only.

It is not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider.

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For My Home Page, click here:  Welcome to my Weblog on Pain Management!

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