The role of cannabinoids in adult neurogenesis.

“Cannabinoids are a unique class of chemical compounds incorporating plant-derived cannabinoids (the active components of Cannabis sativa), the endogenous cannabinoids and synthetic cannabinoid ligands, and these compounds are becoming increasingly recognized for their roles in neural developmental processes.

Indeed, cannabinoids have clear modulatory roles in adult neurogenesis, likely through activation of both CB1 and CB2receptors.

In recent years a large body of literature has deciphered the signalling networks involved in cannabinoid-mediated regulation of neurogenesis. This timely review summarises the evidence that the cannabinoid system is intricately associated with neuronal differentiation and maturation of NPCs, and highlights intrinsic/extrinsic signalling mechanisms that are cannabinoid targets.

Overall these findings identify the central role of the cannabinoid system in adult neurogenesis in the hippocampus and the lateral ventricles, and hence provide insight into the processes underlying post-developmental neurogenesis in the mammalian brain.”

The relationship between cannabidiol and psychosis: A review.

“Cannabis sativa is the most widely used illicit drug in the world…

THC is considered responsible for the main psychotropic effects of the drug, while CBD seems to antagonize these effects, particularly those that induce psychosis.

The effects of Cannabis seem to depend on several variables related to the type of plant, its strength, usage patterns, and intersubjective variations.

CBD could be used to treat several conditions, including psychosis, when the current treatment is associated with significant side effects.

…further research involving the possible antipsychotic effect and other potential positive effects of Cannabis are needed.”

http://www.ncbi.nlm.nih.gov/pubmed/25954940

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

Arachidonylethanolamide induces apoptosis of human glioma cells through vanilloid receptor-1.

“The anti-tumor properties of cannabinoids have recently been evidenced, mainly with delta9-tetrahydrocannabinol (THC).

Here we investigated whether the most potent endogenous cannabinoid, arachidonylethanolamide (AEA), could be a candidate.

We observed that AEA induced apoptosis in long-term and recently established glioma cell lines via aberrantly expressed vanilloid receptor-1 (VR1).

In contrast with their role in THC-mediated death, both CB1 and CB2 partially protected glioma against AEA-induced apoptosis.

These data show that the selective targeting of VR1 by AEA or more stable analogues is an attractive research area for the treatment of glioma.”

http://www.ncbi.nlm.nih.gov/pubmed/15453094

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

Arachidonyl ethanolamide induces apoptosis of uterine cervix cancer cells via aberrantly expressed vanilloid receptor-1.

“Delta(9)-Tetrahydrocannabinol, the active agent of Cannabis sativa, exhibits well-documented antitumor properties, but little is known about the possible effects mediated by endogenous cannabinoids on human tumors. In the present study, we analyzed the effect of arachidonyl ethanolamide (AEA) on cervical carcinoma (CxCa) cell lines.

The major finding was that AEA induced apoptosis of CxCa cell lines via aberrantly expressed vanilloid receptor-1, whereas AEA binding to the classical CB1 and CB2 cannabinoid receptors mediated a protective effect…

Overall, these data suggest that the specific targeting of VR1 by endogenous cannabinoids or synthetic molecules offers attractive opportunities for the development of novel potent anticancer drugs.”

http://www.ncbi.nlm.nih.gov/pubmed/15047233

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

Cannabidiol effects in the prepulse inhibition disruption induced by amphetamine.

“Drugs that facilitate dopaminergic neurotransmission such as amphetamine induce PPI disruption in human and rodents.

Clinical and neurobiological findings suggest that the endocannabinoid system and cannabinoids may be implicated in the pathophysiology and treatment of schizophrenia.

Cannabidiol (CBD), a non-psychotomimetic constituent of the Cannabis sativa plant, has also been reported to have potential as an antipsychotic.

Our aim was to investigate if CBD pretreatment was able to prevent PPI disruption induced by amphetamine…

Pretreatment with CBD attenuated the amphetamine-disruptive effects…

These results corroborate findings indicating that CBD induces antipsychotic-like effects.

In addition, they pointed to the nucleus accumbens as a possible site of these effects.”

http://www.ncbi.nlm.nih.gov/pubmed/25943166

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

 

Perceived efficacy of cannabidiol-enriched cannabis extracts for treatment of pediatric epilepsy: A potential role for infantile spasms and Lennox-Gastaut syndrome.

“There is a great need for safe and effective therapies for treatment of infantile spasms (IS) and Lennox-Gastaut syndrome (LGS). Based on anecdotal reports and limited experience in an open-label trial, cannabidiol (CBD) has received tremendous attention as a potential treatment for pediatric epilepsy, especially Dravet syndrome.

We sought to document the experiences of children with IS and/or LGS who have been treated with CBD-enriched cannabis preparations.

Perceived efficacy and tolerability were similar across etiologic subgroups.

Eighty-five percent of all parents reported a reduction in seizure frequency, and 14% reported complete seizure freedom.

Reported side effects were far less common during CBD exposure, with the exception of increased appetite (30%).

A high proportion of respondents reported improvement in sleep (53%), alertness (71%), and mood (63%) during CBD therapy… this study suggests a potential role for CBD in the treatment of refractory childhood epilepsy including IS and LGS…”

http://www.ncbi.nlm.nih.gov/pubmed/25935511

“Safety and side effects of cannabidiol, a Cannabis sativa constituent.”  http://www.ncbi.nlm.nih.gov/pubmed/22129319

“Cannabidiol, a safe and non-psychotropic ingredient of the marijuana plant Cannabis sativa…” http://www.ncbi.nlm.nih.gov/pubmed/19690824

http://www.thctotalhealthcare.com/category/epilepsy-2/

The type 2 cannabinoid receptor regulates susceptibility to osteoarthritis in mice.

“The aim of this study was to evaluate the role of the type 2 cannabinoid receptor (Cnr2) in regulating susceptibility to osteoarthritis in mice.

These studies demonstrate that the Cnr2 pathway plays a role in the pathophysiology of osteoarthritis in mice and shows that pharmacological activation of CB2 has a protective effect.

Further studies of the role of cannabinoid receptors in the pathogenesis of osteoarthritis in man are warranted.”

http://www.ncbi.nlm.nih.gov/pubmed/25937028

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

The effect of endocannabinoid system in ischemia-reperfusion injury: a friend or a foe?

“In recent years, the endocannabinoid system has emerged as a new therapeutic target in variety of disorders associated with inflammation and tissue injury, including those of the neuronal, liver, renal and cardiovascular system.

The aim of the present review is to elucidate the effect of endocannabinoid system on ischemia reperfusion injury (IRI) in different organs and systems.

Expert opinion: CB2 receptors may play an important compensatory role in controlling tissue inflammation and injury in cells of the neuronal, cardiovascular, liver and renal systems, as well as in infiltrating monocytes/macrophages and leukocytes during various pathological conditions of the systems (atherosclerosis, restenosis, stroke, myocardial infarction, heart, liver and renal failure).

These receptors limit inflammation and associated tissue injury.

On the basis of preclinical results, pharmacological modulation of CB2 receptors may hold a unique therapeutic potential in stroke, myocardial infarction, atherosclerosis, IRI and liver disease.”

http://www.ncbi.nlm.nih.gov/pubmed/25936364

Long-term disease-modifying effect of the endocannabinoid agonist WIN55,212-2 in a rat model of audiogenic epilepsy.

Modulation of the endocannabinoid (eCB) transmission is a promising approach to treating epilepsy.

Animal models can be used to investigate this approach. Krushinsky-Molodkina (KM) rats have, genetically, audiogenic epilepsy. Moreover, in these animals, repeated induction of audiogenic seizures results in a progressive prolongation of the seizures, known as audiogenic kindling.

Administration of the single dose of WIN55,212-2 one hour before the 4th seizure delayed the kindling process by two weeks, without any acute effect on the audiogenic seizures.

CONCLUSIONS:

This result suggests that short-term potentiation of the eCB system might modify the epileptogenic disease process in patients with a progressive course of epilepsy.”

http://www.ncbi.nlm.nih.gov/pubmed/25933961

http://www.thctotalhealthcare.com/category/epilepsy-2/

Enhancement of endocannabinoid signalling protects against cocaine-induced neurotoxicity.

“Cocaine is an addictive substance with a potential to cause deleterious effects in the brain. The strategies for treating its neurotoxicity, however, are limited.

Evidence suggest that the endocannabinoid system exerts neuroprotective functions against various stimuli. Thus, we hypothesized that inhibition of fatty acid amide hydrolase (FAAH), the main enzyme responsible for terminating the actions of the endocannabinoid anandamide, reduces seizures and cell death in the hippocampus in a model of cocaine intoxication…

In conclusion, the pharmacological facilitation of the anandamide/CB1/PI3K signalling protects the brain against cocaine intoxication in experimental models. This strategy may be further explored in the development of treatments for drug-induced neurotoxicity.”