Cannabinoids Attenuate Cancer Pain and Proliferation in a Mouse Model

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“Oral cancer represents 3% of all cancers and its overall survival rate of 50% places it among the worst of all cancers

For many years cannabinoids have been used for medicinal and recreational purposes.

Recently, studies have focused on the therapeutic effects of cannabinoids on different cancers. The current study was the first to investigate the therapeutic effects of synthetic cannabinoids on oral cancer.

We investigated the effects of cannabinoid receptor agonists on (1) oral cancer cell viability in vitro and (2) oral cancer pain and tumor growth in a mouse cancer model.

Here we demonstrate the anti-nociceptive and anti-proliferative effects of systemic administration of cannabinoid receptor agonists on human oral cancer cells.

Our results suggest that systemic administration of cannabinoids decease oral cancer pain.

Our findings suggest a direct role for cannabinoid mechanisms in oral cancer pain and proliferation.

The systemic administration of cannabinoid receptor agonists may have important therapeutic implications wherein cannabinoid receptor agonists may reduce morbidity and mortality of oral cancer.

The present findings suggest that cannabinoid treatment may be a promising alternative therapy for oral cancer pain management. Furthermore, CBr2 agonism is not only palliative, but it may also be effective in inhibiting oral cancer growth, making the agonist a particularly desirable therapeutic agent.”

Full Text: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3099480/

Medical Marijuana Encouraged For Pets Battling Cancer

“A veterinarian in Southern California is pushing the idea to help pets with cancer fight pain or regain their appetite by giving them pot.

Medical marijuana supporters argue that pot helps reduce chronic pain and nausea. Veterinarian Dr. Douglas Kramer of VetGuru.com said over the years, he’s talked to hundreds of people who’ve given pot to their pets.

“Medical marijuana might have a therapeutic benefit to help animals, especially those with terminal conditions,” Kramer said. “It’s quite clear that people are using it and it has both good an bad effects and they need to discuss it openly with their vet.”

Kramer is pushing for more research and discussion. And, his idea is starting to get traction. Time Magazine and Mother Jones recently explored the controversial issue.

“If people are thinking to take their own medical marijuana and give it to their dogs in a non-controlled dose, the risk of intoxication is too risky to advocate for that,” UC Davis Veterinary Medical Hospital Dr. Karl Jandrey said.

The American Veterinary Medical Association said more research into the effects of marijuana on animals needs to be done before proceeding with treatment since not all drugs affect humans and animals in the same way.”

http://www.digtriad.com/news/watercooler/article/284229/176/Medical-Marijuana-Isnt-Just-For-Humans

Physician’s documentation confirms successful treatment of basal cell carcinoma with topical cannabis extract

“We are pleased to announce that we have physician’s documentation that confirms the successful treatment of basal cell carcinoma that resulted from the application of a topical cannabis extract.” 

Currently, there is a tremendous amount of controversy with respect to the effects that cannabinoids have on cancers. Endocannabinoids, phytocannabinoids, and synthetic cannabinoids have demonstrated cancer killing and anti-metastatic properties in tissue culture and in animal models.

While formal, proper, FDA approved clinical trials that would prove or disprove the therapeutic potential of cannabis extracts for treating cancers; trials have not been carried out. Nevertheless, a significant number of anecdotal observations have accumulated that suggest people suffering from a variety of cancers appear to have been cured by ingesting what is known as “Rick Simpson’s hemp oil”.”

More: http://www.news-medical.net/news/20110407/Physicians-documentation-confirms-successful-treatment-of-basal-cell-carcinoma-with-topical-cannabis-extract.aspx

Muscular Dystrophy-Cannabinoids-Symptom Relief

“Cannabinoids Help Muscular Dystrophy Symptoms: Cannabinoids are now known to have the capacity for neuromodulation, via direct, receptor-based mechanisms, at numerous levels within the nervous system. 

These provide therapeutic properties that may be applicable to the treatment of neurological disorders, including anti-oxidative, neuroprotective effects, analgesia, anti-inflammatory actions, immunomodulation, modulation of glial cells and tumor growth regulation. 

Beyond that, the cannabinoids have also been shown to be “remarkably safe with no potential for overdose.”

(vaporizing) Marijuana:

“miraculously improved his quality of life so much so that he left his family and friends in New Jersey to live in California, where he can readily get his medication.”

Sublingual (under the tongue)-tincture (alcohol based) or infused oil (olive or food grade glycerin or coconut)

Topicals (salves, ointments, balms) for muscle pain and spasms.

Cannabinoids:  increase appetite, analgesic (rid pain), muscle relaxant, saliva reduction, bronchodialation,  and sleep induction.

 

CBD-rich strains are best choice.  Sativa dominant x Indica.”

More: http://medicalmarijuana.com/medical-marijuana-treatments/MD

The endocannabinoid system and its therapeutic exploitation.

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“The term ‘endocannabinoid’ – originally coined in the mid-1990s after the discovery of membrane receptors for the psychoactive principle in Cannabis, Delta9-tetrahydrocannabinol and their endogenous ligands – now indicates a whole signalling system that comprises cannabinoid receptors, endogenous ligands and enzymes for ligand biosynthesis and inactivation. This system seems to be involved in an ever-increasing number of pathological conditions. With novel products already being aimed at the pharmaceutical market little more than a decade since the discovery of cannabinoid receptors, the endocannabinoid system seems to hold even more promise for the future development of therapeutic drugs. We explore the conditions under which the potential of targeting the endocannabinoid system might be realized in the years to come.”  http://www.ncbi.nlm.nih.gov/pubmed/15340387

http://www.nature.com/nrd/journal/v3/n9/full/nrd1495.html

Cannabinoids.

“Since the discovery of an endogenous cannabinoid system, research into the pharmacology and therapeutic potential of cannabinoids has steadily increased. Two subtypes of G-protein coupled cannabinoid receptors, CB(1) and CB(1), have been cloned and several putative endogenous ligands (endocannabinoids) have been detected during the past 15 years. The main endocannabinoids are arachidonoyl ethanolamide (anandamide) and 2-arachidonoyl glycerol (2-AG), derivatives of arachidonic acid, that are produced “on demand” by cleavage of membrane lipid precursors.

 Besides phytocannabinoids of the cannabis plant, modulators of the cannabinoid system comprise synthetic agonists and antagonists at the CB receptors and inhibitors of endocannabinoid degradation. Cannabinoid receptors are distributed in the central nervous system and many peripheral tissues, including immune system, reproductive and gastrointestinal tracts, sympathetic ganglia, endocrine glands, arteries, lung and heart. There is evidence for some non-receptor dependent mechanisms of cannabinoids and for endocannabinoid effects mediated by vanilloid receptors.

Properties of CB receptor agonists that are of therapeutic interest include analgesia, muscle relaxation, immunosuppression, anti-inflammation, antiallergic effects, improvement of mood, stimulation of appetite, antiemesis, lowering of intraocular pressure, bronchodilation, neuroprotection and antineoplastic effects. The current main focus of clinical research is their efficacy in chronic pain and neurological disorders. CB receptor antagonists are under investigation for medical use in obesity and nicotine addiction. Additional potential was proposed for the treatment of alcohol and heroine dependency, schizophrenia, conditions with lowered blood pressure, Parkinson’s disease and memory impairment in Alzheimer’s disease.”

http://www.ncbi.nlm.nih.gov/pubmed/16266285

Treatment of Crohn’s Disease with Cannabis: An Observational Study

“The marijuana plant cannabis is known to have therapeutic effects, including improvement of inflammatory processes. However, no report of patients using cannabis for Crohn’s disease (CD) was ever published.

OBJECTIVES:

To describe the effects of cannabis use in patients suffering from CD.

RESULTS:

Of the 30 patients 21 improved significantly after treatment with cannabis… The need for other medication was significantly reduced. Fifteen of the patients had 19 surgeries during an average period of 9 years before cannabis use, but only 2 required surgery during an average period of 3 years of cannabis use.

CONCLUSIONS:

This is the first report of cannabis use in Crohn’s disease in humans. The results indicate that cannabis may have a positive effect on disease activity, as reflected by reduction in disease activity index and in the need for other drugs and surgery. Prospective placebo-controlled studies are warranted to fully evaluate the efficacy and side effects of cannabis in CD.”

Full Text: http://www.ima.org.il/IMAJ/ViewArticle.aspx?year=2011&month=08&page=455

Cannabis use amongst patients with inflammatory bowel disease.

“Experimental evidence suggests the endogenous cannabinoid system may protect against colonic inflammation, leading to the possibility that activation of this system may have a therapeutic role in inflammatory bowel disease (IBD).

Medicinal use of cannabis for chronic pain and other symptoms has been reported in a number of medical conditions.

We aimed to evaluate cannabis use in patients with IBD…

CONCLUSION:

Cannabis use is common amongst patients with IBD for symptom relief, particularly amongst those with a history of abdominal surgery, chronic abdominal pain and/or a low quality of life index.

The therapeutic benefits of cannabinoid derivatives in IBD may warrant further exploration.”

http://www.ncbi.nlm.nih.gov/pubmed/21795981

Beta-caryophyllene is a dietary cannabinoid

“The psychoactive cannabinoids from Cannabis sativa L. and the arachidonic acid-derived endocannabinoids are nonselective natural ligands for cannabinoid receptor type 1 (CB(1)) and CB(2) receptors. Although the CB(1) receptor is responsible for the psychomodulatory effects, activation of the CB(2) receptor is a potential therapeutic strategy for the treatment of inflammation, pain, atherosclerosis, and osteoporosis.

 Here, we report that the widespread plant volatile (E)-beta-caryophyllene [(E)-BCP] selectively binds to the CB(2) receptor and that it is a functional CB(2) agonist.

 Intriguingly, (E)-BCP is a common constituent of the essential oils of numerous spice and food plants and a major component in Cannabis.

 …this natural product exerts cannabimimetic effects in vivo. These results identify (E)-BCP as a functional nonpsychoactive CB(2) receptor ligand in foodstuff and as a macrocyclic antiinflammatory cannabinoid in Cannabis…

 Because (E)-BCP is a major constituent in Cannabis essential oil and shows significant cannabimimetic effects, it may also contribute to the overall effect of Cannabis preparations…”

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2449371/

Anti-inflammatory cannabinoids in diet: Towards a better understanding of CB(2) receptor action?

“The endocannabinoid system is an ancient lipid signaling network which in mammals modulates neuronal functions, inflammatory processes, and is involved in the aetiology of certain human lifestyle diseases, such as Crohn’s disease, atherosclerosis and osteoarthritis.

The system is able to downregulate stress-related signals that lead to chronic inflammation and certain types of pain, but it is also involved in causing inflammation-associated symptoms, depending on the physiological context.

The cannabinoid type-2 (CB2) receptor, which unlike the CB1 receptor does not induce central side effects, has been shown to be a promising therapeutic target. While CB1 receptor antagonists/inverse agonists are of therapeutic value, also CB2 receptor ligands including agonists are of pharmacological interest.

 Although the endocannabinoid system is known to be involved in the regulation of energy homoeostasis and metabolism (mainly via CB1 receptors) there was hitherto no direct link between food intake and cannabinoid receptor activation. Our recent finding that beta-caryophyllene, a ubiquitous lipohilic plant natural product, selectively binds to the CB2 receptor and acts as a full agonist is unexpected…

In the case of the dietary natural product beta-caryophyllene, a full CB2 receptor-selective agonist in vitro, potent anti-inflammatory cannabimimetic effects are observed. Intriguingly, the lowest oral dose tested (5 mg/Kg) of this widespread and apparently non-toxic compound, which is also an FDA-approve food additive, was the most effective. Maybe this strengthens the hypothesis that beta-caryophyllene is indeed a dietary cannabinoid, thus inferring that by eating this compound the endocannabinoid system may be modulated in a beneficial way…”

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2633791/