Soignera-t-on un jour grâce au LSD et aux champignons hallucinogènes ? The Conversation, 8 octobre 2020, Mis à jour le 9 octobre 2020, https://theconversation.com/soignera-t-on-un-jour-grace-au-lsd-et-aux-champignons-hallucinogenes-127760 Auteur Vincent Verroust Chercheur associé à l’Institut des humanités en médecine (Lausanne), doctorant en histoire des sciences à l’École des hautes études en sciences sociales (Paris), centre Alexandre-Koyré (EHESS-CNRS-MNHN), Muséum national d’histoire naturelle (MNHN) Déclaration d’intérêts : Vincent Verroust est président de la Société psychédélique française. Cet article a été co-écrit avec Bertrand Lebeau Leibovici, médecin addictologue à l’hôpital Saint-Antoine (Paris) et à l’hôpital Paul Brousse (Villejuif). Partenaires Muséum National d’Histoire Naturelle apporte un financement en tant que membre adhérent [...]
Lire la suiteFrequent Cannabis Use in Depression Tripled Over Past Decade Batya Swift Yasgur, MA, LSW Medscape, August 19, 2020 Not only are individuals with depression at significantly higher risk for cannabis use compared with those without depression, this trend has increased dramatically over the last decade, new research shows. Investigators analyzed data from more than 16,000 US adults between the ages of 20 and 59 years and found that those with depression had almost twice the odds of any past-month cannabis use compared with those without depression. Odds rose from 1.5 in the 2005-2006 period to 2.3 in the 2015-2016 period. Moreover, the odds ratio (OR) [...]
Lire la suiteFDA Okays New Indication for Esketamine Nasal Spray Megan Brooks Medscape - Aug 03, 2020. The US Food and Drug Administration (FDA) has approved the supplemental new drug application for esketamine nasal spray (Spravato, Janssen Pharmaceuticals) to treat depressive symptoms in adults with major depressive disorder (MDD) and acute suicidal ideation or behavior. The FDA approved esketamine nasal spray for treatment-resistant depression in March 2019, as reported by Medscape Medical News. The new indication is based on data from two identical phase 3 trials — ASPIRE I and ASPIRE II — which evaluated the efficacy and safety of the nasal spray in addition to a comprehensive standard of care [...]
Lire la suiteThe association between cannabis use and mood disorders : A longitudinal study Daniel Feingold, Mark Weiser, Jürgen Rehme, Shaul Lev-Ran Journal of Affective Disorders, 2015, 172, 211–218. doi : 10.1016/j.jad.2014.10.006 a b s t r a c t Background : The association between cannabis use and mood disorders is well documented, yet evidence regarding causality is conflicting. This study explored the association between cannabis use, major depressive disorder (MDD) and bipolar disorder (BPD) in a 3-year prospective study. Methods : Data was drawn from waves 1 and 2 of the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC). MDD and BPD were controlled at baseline [...]
Lire la suiteCannabis Misconceptions Still Common Among MS Clinicians Nancy Melville June 05, 2020 https://www.medscape.com/viewarticle/931872?nlid=135873_425&src=WNL_mdplsfeat_200609_mscpedit_psyc&uac=292598PZ&spon=12&impID=2413707&faf=1 Despite the ever-increasing acceptance of medical cannabis and its notably common use in patients with multiple sclerosis (MS), clinicians treating those patients still may be poorly informed about risks, benefits, regulations, and proper uses, experts say. "There is evidence of a 'clinical void,' with clinicians on one side and people with MS and other conditions on the other that doesn't usually exist regarding therapies that people with MS are using," said Allen C. Bowling, MD, PhD, director of the NeuroHealth Institute and clinical professor of neurology at the University of Colorado, in Aurora. His [...]
Lire la suiteReport et nouvelle date pour les 25ES Rencontres du RESPADD : Des drogues en santé mentale Affiche – 25es Rencontres RESPADD En raison de la situation sanitaire actuelle et pour préserver la santé de chacun, le RESPADD a décidé de reporter ses 25es Rencontres. NOUVELLE DATE : le 18 novembre 2020 Les 25es Rencontres professionnelles du RESPADD, réalisées en partenariat avec le Groupement addictions Franche-Comté, la Société psychédélique française et le CHS Saint-Ylie Jura, se tiendront le mercredi 18 novembre 2020 à la Commanderie de Dole. Cette nouvelle édition des Rencontres du RESPADD explorera les nouveaux usages des drogues en santé mentale et [...]
Lire la suiteThe Reemergence of Ketamine for Treatment in Critically Ill Adults Kimberly P. Hurth, Kristen B. Thomas, Michael A. Rudoni Critical Care Medicine, 2020,1-13. Doi : 10.1097/CCM.0000000000004335 Objectives : To assess the evidence and discuss the risks and clinical relevance of ketamine for the treatment of various disease states impacting the adult critically ill population. Data Sources : A literature review was performed using PubMed evaluating primary literature published until August 2018. Study Selection : Case reports, observational studies (cohort, case-control), and randomized controlled trials involving patients 18 years and older in a nonperioperative setting using either IV or intramuscular ketamine were included for analysis. Uses of [...]
Lire la suiteAstrocytes in rapid ketamine antidepressant action Matjaž Stenovec, Baoman Li, Alexei Verkhratsky, Robert Zorec Neuropharmacology, 2020, 173, 108158 Doi : 10.1016/j.neuropharm.2020.108158 H I G H L I G H T S • Ketamine inhibits calcium signalling and enhances cAMP production in astroglia. • Ketamine suppresses exocytosis of gliosignalling molecules and Kir4.1. • Ketamine elevates cholesterol content in the plasmalemma specifically in astrocytes. A B S T R A C T Ketamine, a general anaesthetic and psychotomimetic drug, exerts rapid, potent and long-lasting antidepressant effect, albeit the cellular and molecular mechanisms of this action are yet to be discovered. Besides targeting neuronal NMDARs fundamental for synaptic transmission, ketamine affects the [...]
Lire la suiteAntidepressant mechanisms of ketamine: Focus on GABAergic inhibition Bernhard Luscher, Mengyang Fenga, Sarah J. Jefferson Advances in Pharmacology, 2020 doi : 10.1016/bs.apha.2020.03.002 Contents 1. Introduction 3 2. Molecular targets of subanesthetic ketamine and its metabolites 6 3. Insights from ketamine indicate a key role for reduced GABAergic inhibition in the pathophysiology of major depression 7 3.1 Antidepressant efficacy of ketamine is controlled by imbalances between neural excitation and inhibition 7 3.2 Chronic imbalances of neural excitation and inhibition lead to homeostatic downregulation of glutamatergic synapses that compromises normal neuronal communication 9 3.3 Chronic imbalances between neural excitation and inhibition lead to defects in GABAergic inhibition that delimit spontaneous recovery from [...]
Lire la suiteLes effets antidépresseurs de la kétamine élucidés Utilisée de longue date comme anesthésique, cette molécule vient d’être autorisée comme antidépresseur aux Etats-Unis. Par Florence Rosier Publié le 16 avril 2019 à 06h00 - https://www.lemonde.fr/sciences/article/2019/04/16/les-effets-antidepresseurs-de-la-ketamine-elucides_5450737_1650684.html La kétamine est une molécule à surprises. Et pas seulement pour ceux qui recherchent ses effets hallucinogènes en la détournant de ses applications médicales. Depuis les années 1970, elle est largement utilisée comme anesthésique à usage humain ou vétérinaire. Mais elle est aussi dotée de puissants effets antidépresseurs, découverts voici plus de vingt ans. Or, ceux-ci viennent d’être doublement reconnus : au plan réglementaire, par la toute-puissante agence américaine du médicament (FDA) ; [...]
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