Brief Report: Cannabis Smoking and Diabetes Mellitus: Results from Meta-analysis with Eight Independent Replication Samples.

“Recently active cannabis smoking and diabetes mellitus are inversely associated…

…but there now is a more stable evidence base for new lines of clinical translational research on a possibly protective cannabis smoking-diabetes mellitus association suggested in prior research.”

http://www.ncbi.nlm.nih.gov/pubmed/25978795

http://www.thctotalhealthcare.com/category/diabetes/

 

The use of cannabinoids as anticancer agents.

Cover image

“It is well-established that cannabinoids exert palliative effects on some cancer-associated symptoms. In addition evidences obtained during the last fifteen years support that these compounds can reduce tumour growth in animal models of cancer.

Cannabinoids have been shown to activate an ER-stress related pathway that leads to the stimulation of autophagy-mediated cancer cell death.

In addition, cannabinoids inhibit tumour angiogenesis and decrease cancer cell migration.

The mechanisms of resistance to cannabinoid anticancer action as well as the possible strategies to develop cannabinoid-based combinational therapies to fight cancer have also started to be explored.

In this review we will summarize these observations (that have already helped to set the bases for the development of the first clinical studies to investigate the potential clinical benefit of using cannabinoids in anticancer therapies) and will discuss the possible future avenues of research in this area.” http://www.ncbi.nlm.nih.gov/pubmed/26071989

“… cannabinoids have been shown to alleviate nausea and vomit induced by chemotherapy and several cannabinoid-based medicines [Marinol (THC) and Cesamet (nabilone, a synthetic analogue of THC)] are approved for this purpose. Cannabinoids also inhibit pain, and Sativex (a standardized cannabis extract) has been approved in Canada for the treatment of cancer-associated pain. Other potential palliative effects of cannabinoids in oncology include appetite stimulation and attenuation of wasting. In addition to these palliative actions of cannabinoids in cancer patients, THC and other cannabinoids exhibit antitumour effects in animal models of cancer… a large body of scientific evidences strongly support THC and other cannabinoid agonists exert anticancer actions in preclinical models of cancer… In conclusion there exist solid scientific evidences supporting that cannabinoids exhibit a remarkable anticancer activity in preclinical models of cancer. Since these agents also show an acceptable safety profile, clinical studies aimed at testing them as single agents or in combinational therapies are urgently needed.” http://www.sciencedirect.com/science/article/pii/S0278584615001190

Medical use of cannabis: an addiction medicine perspective.

“The use of cannabis for medical purposes, evident throughout history, has become a topic of increasing interest. Yet on the present medical evidence, cannabis-based treatments will only be appropriate for a small number of people in specific circumstances. Experience with cannabis as a recreational drug, and with use of psychoactive drugs that are prescribed and abused, should inform harm reduction in the context of medical cannabis.”  http://www.ncbi.nlm.nih.gov/pubmed/26059881

“A safer alternative: Cannabis substitution as harm reduction.”  http://www.ncbi.nlm.nih.gov/pubmed/25919477

Pharmacologic effects of cannabidiol on acute reperfused myocardial infarction in rabbits: evaluated with 3.0T cardiac magnetic resonance imaging and histopathology.

“Cannabidiol (CBD) has anti-inflammatory effects.

We explored its therapeutic effects on cardiac ischemia-reperfusion injury with an experimental imaging platform…

Compared to controls, CBD treatment improved systolic wall thickening, significantly increased blood flow in the AAR, significantly decreased microvascular obstruction, increased the PDR by 1.7-fold, lowered the AMI-core/AAR ratio, and increased the MSI.

These improvements were associated with reductions in serum cTnI, cardiac leukocyte infiltration, and myocellular apoptosis.

Thus, CBD therapy reduced AMI size and facilitated restoration of LV function.

We demonstrated that this experimental platform has potential theragnostic utility.”

http://www.ncbi.nlm.nih.gov/pubmed/26065843

Does cannabis affect dopaminergic signaling in the human brain? A systematic review of evidence to date.

“While abnormalities in multiple pathways may lead to schizophrenia, an abnormality in dopamine neurotransmission is considered to be the final common abnormality.

One would thus expect cannabis use to be associated with dopamine signaling alterations.

This is the first systematic review of all studies, both observational as well as experimental, examining the acute as well as chronic effect of cannabis or its main psychoactive ingredient, THC, on the dopamine system in man…

In man, there is as yet little direct evidence to suggest that cannabis use affects acute striatal dopamine release or affects chronic dopamine receptor status in healthy human volunteers. ”

http://www.ncbi.nlm.nih.gov/pubmed/26068702

Medical Marijuana in Pediatric Neurological Disorders.

“Marijuana and marijuana-based products have been used to treat medical disease.

Recently, derivatives of the plant have been separated or synthesized to treat various neurological disorders, many of them affecting children.

Unfortunately, data are sparse in regard to treating children with neurologic illness. Therefore, formal conclusions about the potential efficacy, benefit, and adverse effects for these products cannot be made at this time.

Further robust research using strong scientific methodology is desperately needed to formally evaluate the role of these products in children.”

http://www.ncbi.nlm.nih.gov/pubmed/26060306

“The endocannabinoid-CB receptor system: Importance for development and in pediatric disease.”  http://www.ncbi.nlm.nih.gov/pubmed/15159678

Marijuana kills brain cancer, new study confirms

“The active molecules in cannabis kill brain cancer — another study has revealed.”

“Scientists using an extract of whole-plant marijuana rich in pot’s main psychoactive ingredient THC as well as cannabidiol (CBD) showed “dramatic reductions in tumor volumes” of a type of brain cancer.”  http://blog.sfgate.com/smellthetruth/2014/11/18/marijuana-kills-brain-cancer-new-study-confirms/

“Marijuana kills brain cancer, new study confirms. The active molecules in cannabis kill brain cancer — another study has revealed.” http://blog.seattlepi.com/marijuana/2014/11/18/marijuana-kills-brain-cancer-new-study-confirms/#13130101=0

“Marijuana Kills Brain Cancer Cells. Researchers have found that the THC in marijuana causes brain cancer cells to die in both mice and humans.”  http://www.nbcphiladelphia.com/news/health/Marijuana_Kills_Brain_Cancer_Cells_All__National_.html

“Marijuana Kills Brain Cancer, New Study Confirms” http://cancerguide.byethost8.com/marijuana-kills-brain-cancer-new-study-confirms-sfgate-blog/

http://www.thctotalhealthcare.com/category/brain-cancer/

Photosynthetic response of Cannabis sativa L., an important medicinal plant, to elevated levels of CO2

“Cannabis sativa L. (Cannabaceae) is a widely distributed plant around the world. It has a long history of medicinal use as far back as the 6th century B.C. Cannabis sativa is the natural source of the cannabinoids, a unique group of terpeno-phenolic compounds that accumulate in the glandular trichomes of the plant.

Δ9-Tetrahydrocannabinolic acid (Δ9-THCA) is the major cannabinoid which upon decarboxylation with age or heating gives rise to Δ9-THC, the primary psychoactive agent. The pharmacologic and therapeutic potency of Cannabis preparations and Δ9-THC have been extensively reviewed.

Despite of its medicinal importance and widespread occurrence, to the best of our knowledge, no information is available on the consequences of rising atmospheric CO2 concentration on its photosynthesis and growth performance.

This study describes the short term effect of elevated CO2 on photosynthetic characteristics and stomatal response in four different high Δ9-THC yielding varieties of Cannabis sativa.

The higher water use efficiency (WUE) under elevated CO2 conditions in Cannabis sativa, primarily because of decreased stomatal conductance and subsequently the transpiration rate, may enable this species to survive under expected harsh greenhouse effects including elevated CO2 concentration and drought conditions.”

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3550578/

Cannabidiol as an Intervention for Addictive Behaviors: A Systematic Review of the Evidence.

“Drug addiction is a chronically relapsing disorder characterized by the compulsive desire to use drugs and a loss of control over consumption.

Cannabidiol (CBD), the second most abundant component of cannabis, is thought to modulate various neuronal circuits involved in drug addiction.

The goal of this systematic review is to summarize the available preclinical and clinical data on the impact of CBD on addictive behaviors.

MEDLINE and PubMed were searched for English and French language articles published before 2015. In all, 14 studies were found, 9 of which were conducted on animals and the remaining 5 on humans.

A limited number of preclinical studies suggest that CBD may have therapeutic properties on opioid, cocaine, and psychostimulant addiction, and some preliminary data suggest that it may be beneficial in cannabis and tobacco addiction in humans.

Further studies are clearly necessary to fully evaluate the potential of CBD as an intervention for addictive disorders.”

http://www.ncbi.nlm.nih.gov/pubmed/26056464

“CBD is an exogenous cannabinoid that acts on several neurotransmission systems involved in addiction. Animal studies have shown the possible effects of CBD on opioid and psychostimulant addiction, while human studies presented some preliminary evidence of a beneficial impact of CBD on cannabis and tobacco dependence. CBD has several therapeutic properties on its own that could indirectly be useful in the treatment of addiction disorders, such as its protective effect on stress vulnerability and neurotoxicity… The dreadful burden of substance-use disorder worldwide, combined with the clear need for new medication in the addiction field, justifies the requirement of further studies to evaluate the potential of CBD as a new intervention for addictive behaviors.”  http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4444130/

http://www.thctotalhealthcare.com/category/addiction/

Metabolic fingerprinting of Cannabis sativa L., cannabinoids and terpenoids for chemotaxonomic and drug standardization purposes.

“Cannabis sativa L. is an important medicinal plant.

In order to develop cannabis plant material as a medicinal product quality control and clear chemotaxonomic discrimination between varieties is a necessity.

Therefore in this study 11 cannabis varieties were grown under the same environmental conditions. Chemical analysis of cannabis plant material used a gas chromatography flame ionization detection method that was validated for quantitative analysis of cannabis monoterpenoids, sesquiterpenoids, and cannabinoids. Quantitative data was analyzed using principal component analysis to determine which compounds are most important in discriminating cannabis varieties.

In total 36 compounds were identified and quantified in the 11 varieties. Using principal component analysis each cannabis variety could be chemically discriminated. This methodology is useful for both chemotaxonomic discrimination of cannabis varieties and quality control of plant material.”

http://www.ncbi.nlm.nih.gov/pubmed/21040939