Clinical Interpretations of Patients Experience in a Trial of Psilocybin-Assisted Psychotherapy for Alcohol Use Disorder BOGENSCHUTZ M.P., PODREBARAC S.K., DUANE J.H., AMEGADZIE S.S., MALONE T.C., ROSS L.T., MENNENGA S.E. Frontiers in Pharmacology, 2018, 9, article 100. Doi : 10.3389/fphar.2018.00100 Abstract : After a hiatus of some 40 years, clinical research has resumed on the use of classic hallucinogens to treat addiction. Following completion of a small open-label feasibility study, we are currently conducting a double-blind placebo-controlled clinical trial of psilocybin-assisted treatment of alcohol use disorder. Although treatment effects cannot be analyzed until the study is complete, descriptive case studies provide a useful window into the therapeutic process [...]
Lire la suiteCannabis and anxiety: a critical review of the evidence José Alexandre Crippa, Antonio Waldo Zuardi, Rocio Martin-Santos, Sagnik Bhattacharyya, Zerrin Atakan, Philip McGuire and Paolo Fusar-Poli Human Psychopharmacology Clinical and Experimental, 2009, 24, 515-523. Background : Anxiety reactions and panic attacks are the acute symptoms most frequently associated with cannabis use. Understanding the relationship between cannabis and anxiety may clarify the mechanism of action of cannabis and the pathophysiology of anxiety. Aims of the present study were to review the nature of the relationship between cannabis use and anxiety, as well as the possible clinical, diagnostic and causal implications. Method : Systematic review of the [...]
Lire la suiteAge-related differences in the impact of cannabis use on the brain and cognition : a systematic review Claire Gorey, · Lauren Kuhns, · Eleni Smaragdi, · Emese Kroon, · Janna Cousijn European Archives of Psychiatry and Clinical Neuroscience, 2019 https://doi.org/10.1007/s00406-019-00981-7 Abstract The impact of cannabis on the adolescent compared to adult brain is of interest to researchers and society alike. From a theoretical perspective, adolescence represents a period of both risk and resilience to the harms of cannabis use and cannabis use disorders. The aim of this systematic review is to provide a critical examination of the moderating role of age on the relationship between [...]
Lire la suiteCannabidiol inhibits priming-induced reinstatement of methamphetamine in REM sleep deprived rats Saeideh Karimi-Haghighi, Abbas Haghparast Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran Progress in Neuropsychopharmacology & Biological Psychiatry, 2017. http://dx.doi.org/10.1016/j.pnpbp.2017.08.022 A B S T R A C T Methamphetamine (METH) is a widely abused and a severely addictive psychostimulant. Relapse is the main cause of concern when treating addiction. It could manifest after a long period of abstinence. Previous studies showed that there is a strong connection between sleep impairment and relapse. Also, it has been reported that cannabidiol might be a potential treatment for drug craving and relapse. [...]
Lire la suiteCannabidiol treatment reduces the motivation to self-administer methamphetamine and methamphetamine-primed relapse in rats Gracie L. Hay, Sarah J. Baracz, Nicholas A. Everett, Jessica Roberts, Priscila A. Costa, Jonathon C. Arnold, Iain S. McGregor and Jennifer L. Cornish Journal of Psychopharmacology, 2018, 32, (12), 1369-1378. DOI : 10.1177/0269881118799954 , journals.sagepub.com/home/jop Abstract Background : Methamphetamine is an addictive stimulant that can cause many adverse physical, psychological and psychosocial effects. Preliminary evidence shows cannabidiol, a non-intoxicating constituent of the cannabis plant, may have efficacy in treating opioid and nicotine dependence. However, no study has yet examined whether cannabidiol treatment might impact on methamphetamine addiction. Aims : The current study [...]
Lire la suiteREVIEW : Cannabidiol – Recent Advances Raphael Mechoulam, Maximilian Petersa, Eric Murillo-Rodriguez and Lumïr O. Hanus Chemistry and Biodiversity, 2007, 4, 1678-1692. The aim of this review is to present some of the recent publications on cannabidiol (CBD; 2), a major non-psychoactive constituent of Cannabis, and to give a general overview. Special emphasis is laid on biochemical and pharmacological advances, and on novel mechanisms recently put forward, to shed light on some of the pharmacological effects that can possibly be rationalized through these mechanisms. The plethora of positive pharmacological effects observed with CBD make this compound a highly attractive therapeutic entity. Contents 1. Introduction 2. Mechanisms of Cannabidiol Action 2.1. Cannabidiol: an [...]
Lire la suiteLes Phyto-cannabinoïdes Non-psychotropes* : Les nouvelles Opportunités d'une plante ancienne.(*NdT : non-stupéfiants) Angelo A. Izzo, Francesca Borrelli, Raffaele Capasso, Vincenzo Di Marzo and Raphael Mechoulam Trends in Pharmacological Sciences - CELL Press, 2009, 30, 10, 515-27. doi: 10.1016/j.tips.2009.07.006. Le Δ9-tetrahydrocannabinol (Δ9THC) se lie aux récepteurs endocannabinoïdes (CB1 et CB2) qui sont activés par les cannabinoïdes endogènes (endocannabinoïdes) et qui sont impliqués dans une large gamme de processus physiopathologiques (exemple: modulation de la libération de neurotransmetteurs, régulation de la perception de la douleur, régulation des fonctions cardiovasculaires, gastro-intestinales et hépatiques). Les effets psychotropes bien connus du Δ9THC qui sont véhiculés par l'activation des récepteurs CB1 [...]
Lire la suiteRandomized, dose-ranging safety trial of cannabidiol in Dravet syndrome, Orrin Devinsky et al., 2018
Randomized, dose-ranging safety trial of cannabidiol in Dravet syndrome Orrin Devinsky, Anup D. Patel, Elizabeth A. Thiele, Matthew H. Wong, Richard Appleton, Cynthia L. Harden, Sam Greenwood, Gilmour Morrison, and Kenneth Sommerville, On behalf of the GWPCARE1 Part A Study Group Neurology® 2018, 0:e1-e8. doi:10.1212/WNL.0000000000005254 Abstract Objective : To evaluate the safety and preliminary pharmacokinetics of a pharmaceutical formulation of purified cannabidiol (CBD) in children with Dravet syndrome. Methods : Patients aged 4–10 years were randomized 4:1 to CBD (5, 10, or 20 mg/kg/d) or placebo taken twice daily. The double-blind trial comprised 4-week baseline, 3-week treatment (including titration), 10-day taper, and 4-week follow-up periods. Completers [...]
Lire la suiteA Phase 1, Open-Label, Pharmacokinetic Trial to Investigate Possible Drug-Drug Interactions Between Clobazam, Stiripentol, or Valproate and Cannabidiol in Healthy Subjects. G. Morrison, J. Crockett, G. Blakey, K. Sommerville Clinical Pharmacology in Drug Development, 2019, PMID : 30791225, DOI : 10.1002/cpdd.665 Abstract GW Pharmaceuticals' formulation of highly purified cannabidiol oral solution is approved in the United States for seizures associated with Lennox-Gastaut and Dravet syndromes in patients aged ≥2 years, for which clobazam, stiripentol, and valproate are commonly used antiepileptic drugs. This open-label, fixed-sequence, drug-drug interaction, healthy volunteer trial investigated the impact of cannabidiol on steady-state pharmacokinetics of clobazam (and N-desmethylclobazam), stiripentol, and valproate; [...]
Lire la suiteVariétés de Cannabis: Par Docteur Ethan Russo http://www.cannabis-med.org/index.php?tpl=faq&red=faqlist&id=172&lng=fr Les consommateurs de cannabis ont souvent indiqué que les différentes variétés de cannabis produisent des effets variables, que se soit concernant les effets psychoactifs ou les bénéfices thérapeutiques. Les variétés sont généralement désignées comme étant soit Sativa, soit Indica, soit hybrides. Or, ces noms, d’un point de vue commercial, prêtent à confusion. Pour cette raison, la communauté scientifique s’est concentrée sur le Tétrahydrocannabinol (THC) qu’elle considérait comme la principale variable et la seule d’importance. En parallèle, jusqu’à très récemment, les croisements sélectifs des variétés de cannabis, destiné à l’usage récréatif ou à l’usage thérapeutique, [...]
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