Renseignements destinés aux professionnels de la santé : Le cannabis (marijuana, marihuana) et les cannabinoïdes (Version PDF - 2,690 Ko) https://www.canada.ca/fr/sante-canada/services/drogues-medicaments/cannabis/renseignements-medecins/renseignements-destines-professionnels-sante-cannabis-cannabinoides.html Santé Canada Auteur : Hanan Abramovici Ph.D. Co-auteurs : Sophie-Anne Lamour, Ph.D. et George Mammen, Ph.D. Nous republions cet excellent document de Santé Canada, et surtout, le résumé des indications reconnues, et envisagées, du cannabis thérapeutique. Aperçu des énoncés récapitulatifs Les énoncés récapitulatifs suivants visent à résumer le contenu des sections 4.0 (Usages thérapeutiques possibles) et 7.0 (Effets indésirables) et leurs sous-sections respectives. Les énoncés récapitulatifs peuvent être également trouvés dans leurs sections et sous-sections respectives dans le corps même du document. Remarque: la plupart des études [...]
Lire la suiteLong-term Heavy Cannabis Use : implications for health education Niall COGGANS, Phil DALGARNO, Lindsay JOHNSON & David SHEWAN Drugs : education, prevention and policy, 2004, Vol. 11, No. 4, 299–313 ABSTRACT There is growing evidence that cannabis can have negative effects on health. While the ongoing debate about the nature and duration of these effects recognizes mild cognitive impairment, the evidence for irreversibility of cognitive impairment and causal links with psychiatric illness is not conclusive. There is undoubtedly potential for impairment of respiratory functioning, but that will depend on lifetime load and in most cases is confounded with tobacco smoking. There is a [...]
Lire la suiteAcute effects of delta-9-tetrahydrocannabinol (THC) on resting state brain function and their modulation by COMT genotype Matthijs G. Bossong, Hendrika H. van Hell, Chris D. Schubart, Wesley van Saane, Tabitha A. Iseger, Gerry Jager, Matthias J.P. van Osch, J. Martijn Jansma, René S. Kahn, Marco P. Boks, Nick F. Ramsey European Neuropsychopharmacology, 2019, 13, 56, 1–11 https://doi.org/10.1016/j.euroneuro.2019.03.010 Abstract Cannabis produces a broad range of acute, dose-dependent psychotropic effects. Only a limited number of neuroimaging studies have mapped these effects by examining the impact of cannabis on resting state brain neurophysiology. Moreover, how genetic variation influences the acute effects of cannabis on resting state brain function [...]
Lire la suiteThe Relevance of Sex in the Association of Synthetic Cannabinoid Use With Psychosis and Agitation in an Inpatient Population Anahita Bassir Nia, MD‡; Claire L. Mann, BA; Sharron Spriggs, MA; Daniel R. DeFrancisco, MD; Steven Carbonaro, MD; Lyla Parvez, MA; Igor I. Galynker, MD, PhD; Charles A. Perkel, MD; and Yasmin L. Hurd, PhD Journal of Clinical Psychiatry, 2019, 80, (4), 18m12539 https://doi.org/10.4088/JCP.18m12539 Background : Current evidence suggests that women are more sensitive to the effects of cannabinoids. The aim of this study was to investigate the relevance of sex in the association of synthetic cannabinoid (SC) use with psychosis and agitation. Methods : A [...]
Lire la suiteThe Potential of Cannabidiol as a Treatment for Psychosis and Addiction : Who Benefits Most ? A Systematic Review Albert Batalla, Hella Janssen, Shiral S. Gangadin and Matthijs G. Bossong Journal of Clinical Medicine, 2019, 8, 1058 doi : 10.3390/jcm8071058 Abstract : The endogenous cannabinoid (eCB) system plays an important role in the pathophysiology of both psychotic disorders and substance use disorders (SUDs). The non-psychoactive cannabinoid compound, cannabidiol (CBD) is a highly promising tool in the treatment of both disorders. Here we review human clinical studies that investigated the ecacy of CBD treatment for schizophrenia, substance use disorders, and their comorbidity. In particular, we examined [...]
Lire la suiteNabiximols combined with motivational enhancement/cognitive behavioral therapy for the treatment of cannabis dependence : A pilot randomized clinical trial Jose M. Trigo, Alexandra Soliman, Lena C. Quilty, Benedikt Fischer, JuÈrgen Rehm, Peter Selby, Allan J. Barnes11¤a, Marilyn A. Huestis, Tony P. George, David L. Streiner, Gregory Staios, Bernard Le Foll PLoS ONE, 2018, 13, (1), e0190768. https://doi.org/10.1371/journal.pone.0190768 Abstract Background The current lack of pharmacological treatments for cannabis use disorder (CUD) warrants novel approaches and further investigation of promising pharmacotherapy. We previously showed that nabiximols (27 mg/ml Δ9-tetrahydrocannabinol (THC)/ 25 mg/ml cannabidiol (CBD), Sativex®) can decrease cannabis withdrawal symptoms. Here, we assessed in a pilot study the [...]
Lire la suiteAnandamide administration alone and after inhibition of fatty acid amide hydrolase (FAAH) increases dopamine levels in the nucleus accumbens shell in rats Marcello Solinas, Zuzana Justinova, Steven R. Goldberg and Gianluigi Tanda Journal of Neurochemistry, 2006, 98, 408–419. doi:10.1111/j.1471-4159.2006.03880.x Abstract Although endogenous cannabinoid systems have been implicated in the modulation of the rewarding effects of abused drugs and food, little is known about the direct effects of endogenous ligands for cannabinoid receptors on brain reward processes. Here we show for the first time that the intravenous administration of anandamide, an endogenous ligand for cannabinoid receptors, and its longer-lasting synthetic analog methanandamide, increase the extracellular dopamine [...]
Lire la suitePsilocybin – Summary of knowledge and new perspectives Filip Tylša,b,n, Tomáš Páleníčeka,b, Jiří Horáčeka European Neuropsychopharmacology, 2014, 24, 342–356 Doi : 10.1016/j.euroneuro.2013.12.006 Abstract Psilocybin, a psychoactive alkaloid contained in hallucinogenic mushrooms, is nowadays given a lot of attention in the scientific community as a research tool for modeling psychosis as well as due to its potential therapeutic effects. However, it is also a very popular and frequently abused natural hallucinogen. This review summarizes all the past and recent knowledge on psilocybin. It briefly deals with its history, discusses the pharmacokinetics and pharmacodynamics, and compares its action in humans and animals. It attempts to describe the mechanism of psychedelic effects [...]
Lire la suiteReefer Madness : A Case of Cannabis-Induced Psychosis Matthew C. Ballenberger, Robert D. Glatter, Daniel P. Klein, Steven Mandel, Medscape Psychiatry, August 15, 2019 Clinical Presentation A 32-year-old woman with a history of iron-deficiency anemia was brought in by ambulance because of altered mental status. The patient's sister and boyfriend reported that 1 day before presentation, the patient had ingested a marijuana edible and a few hours later developed fatigue and nausea, followed by at least 15 episodes of nonbloody, nonbilious, projectile vomiting throughout the night. In the morning, she became very pale, her lips turned blue, and she became stiff, losing consciousness for [...]
Lire la suiteSalvia divinorum : from recreational hallucinogenic use to analgesic and anti-inflammatory action Ulises Coffeen, Francisco Pellicer Journal of Pain Research, 2019, Volume 12, 1069-1076 DOI: 10.2147/JPR.S188619 Abstract : Salvia divinorum is a herbal plant native to the southwest region of Mexico. Traditional preparations of this plant have been used in illness treatments that converge with inflammatory conditions and pain. Currently, S. divinorum extracts have become popular in several countries as a recreational drug due to its hallucinogenic effects. Its main active component is a diterpene named salvinorin A (SA), a potent naturally occurring hallucinogen with a great affinity to the κ opioid receptors and with [...]
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