Les cannabinoïdes dans l’Autisme : Dr Christian Sueur GRECC (Groupe de Recherches et D’Etudes Cliniques sur les Cannabinoïdes) Version actualisée juin 2019 L’autisme est une pathologie, ou plutôt un trouble majeur du développement psycho-neuro-développemental, à l’étiologie complexe et multifactorielle ; rentrent vraisemblablement en interaction, pour produire un trouble du spectre autistique, aussi bien des facteurs psychologique interactionnels précoces, qu’un terrain de fragilité ou de prédisposition génétique, à l’origine d’anomalies neurophysiologiques du développement de la connectique neuronale. Depuis près d’une vingtaine d’année, les cannabinoïdes représente progressivement une nouvelle voie d’approche thérapeutique des autismes les plus sévères. Certains parents, surtout aux USA[1], ont adopté depuis le début [...]
Lire la suiteCannabis Use in Pregnancy. A Tale of 2 Concerns Michael Silverstein, MD, MPH1,2; Elizabeth A. Howell, MD, MPH3; Barry Zuckerman, MD1 JAMA. Published online June 18, 2019. doi:10.1001/jama.2019.8860 Original Investigation Association Between Self-reported Prenatal Cannabis Use and Maternal, Perinatal, and Neonatal Outcomes Daniel J. Corsi, PhD; Laura Walsh, MSc; Deborah Weiss, PhD; Helen Hsu, MD; Darine El-Chaar, MD; Steven Hawken, PhD; Deshayne B. Fell, PhD; Mark Walker, MD Research Letter Medical and Nonmedical Cannabis Use Among Pregnant Women in the United States Nora D. Volkow, MD; Beth Han, MD, PhD, MPH; Wilson M. Compton, MD, MPE; Elinore F. McCance-Katz, MD, PhD Full Text, https://jamanetwork.com/journals/jama/article-abstract/2736581 In an article in JAMA, Corsi and colleagues1 present the results of a retrospective cohort study of 661 617 women designed to assess associations between maternal cannabis use during pregnancy and adverse obstetrical and [...]
Lire la suiteRESEARCH LETTER Self-reported Medical and Non-medical Cannabis Use Among Pregnant Women in the United States JAMA, Published online June 18, 2019. doi: 10.1001/jama.2019.7982 Cannabis use increased among pregnantwomenin the United States from2002 to 2014.1 However, changes in cannabis use and frequency by trimester over time and national prevalence of medical cannabis use during pregnancy are unknown. Data fromtheNational Survey on Drug Use andHealth (NSDUH) were examined to address these knowledge gaps. Methods : Data were from women aged 12 to 44 years who participated in the 2002-2017 NSDUH, a representative survey of the US civilian, noninstitutionalized population.2 Collection of NSDUH data was approved [...]
Lire la suiteAssociation Between Self-reported Prenatal Cannabis Use and Maternal, Perinatal, and Neonatal Outcomes Daniel J. Corsi, PhD; LauraWalsh, MSc; DeborahWeiss, PhD; Helen Hsu, MD; Darine El-Chaar, MD; Steven Hawken, PhD; Deshayne B. Fell, PhD; MarkWalker,MD JAMA, Published online June 18, 2019. doi:10.1001/jama.2019.8734 Key Points Question Is there an association between prenatal cannabis exposure and maternal, perinatal, and neonatal outcomes? Findings In this retrospective cohort study that included 661 617 pregnancies and 9427 reported cannabis users, the rate of preterm birth among reported cannabis users was 12% vs 6% in nonusers, a statistically significant difference. Meaning Reported cannabis use in pregnancy was associated with significant increases in the rate of preterm [...]
Lire la suiteDynamical exploration of the repertoire of brain networks at rest is modulated by psilocybin Louis-David Lord, Paul Expert, Selen Atasoy, Leor Roseman, Kristina Rapuano, Renaud Lambiotte, David J. Nutt, Gustavo Deco, Robin L. Carhart-Harris, Morten L. Kringelbach, Joana Cabral, NeuroImage, 2019, 199, 127–142 https://doi.org/10.1016/j.neuroimage.2019.05.060 A B S T R A C T Growing evidence from the dynamical analysis of functional neuroimaging data suggests that brain function can be understood as the exploration of a repertoire of metastable connectivity patterns (‘functional brain networks’), which potentially underlie different mental processes. The present study characterizes how the brain's dynamical exploration of resting-state networks is rapidly modulated by intravenous [...]
Lire la suiteexcellent article de Jean-Yves Nau, avec deux réponses "pertinentes" du Pr Nicolas Authier et du Dr William Lowenstein Cannabis thérapeutique : l’activisme injustifiable de l’Académie nationale de pharmacie 18 juin 2019 jeanyvesnau addictions, Déontologie, Douleur, Médecine, médicament, Pharmacie, Polémique, Politique, Pouvoir, Risques (réduction des), santé publique, Toxicomanies Étiquettes : European Respiratory Journal, The Conversation, The Lancet https://jeanyvesnau.com/2019/06/18/cannabis-therapeutique-lactivisme-injustifiable-de-lacademie-nationale-de-pharmacie/ Bonjour Pour un peu on se gausserait. Sur le mode « l’Académie abuse la galerie ». Les faits : un communiqué de presse daté du 17 juin de l’Académie nationale de pharmacie : « Cannabis ‘’thérapeutique’’ : une appellation abusive et dangereuse ». Cette institution entend aujourd’hui « mettre en garde [...]
Lire la suiteShould Physicians Recommend Replacing Opioids With Cannabis? Keith Humphreys PhD, Richard Saitz, MD, MPH JAMA, 2019, 321, 7, 639-640. doi : 10.1001/jama.2019.0077 https://jamanetwork.com/journals/jama/fullarticle/2723649 Recent state regulations (eg, in New York, Illinois) allow medical cannabis as a substitute for opioids for chronic pain and for addiction. Yet the evidence regarding safety, efficacy, and comparative effectiveness is at best equivocal for the former recommendation and strongly suggests the latter—substituting cannabis for opioid addiction treatments is potentially harmful. Neither recommendation meets the standards of rigor desirable for medical treatment decisions. Résumé : States that permit medical marijuana as an alternative to opioids for chronic pain and for addiction [...]
Lire la suiteThe Need for Federal Regulation of Marijuana Marketing John W. Ayers, PhD, Theodore Caputi, Eric C. Leas, PhD,MPH JAMA, June 11, 2019 Volume 321, Number 22 doi:10.1001/jama.2019.4432 A national for-profit marijuana industry is expanding substantially in the United States. Thirty-three states have legalized medical marijuana, 10 of which (where 1 in 4 individuals reside) have also legalized recreational marijuana. Sales of marijuana are projected to increase from $8.5 billion to $75 billion by 2030, rivaling current tobacco sales ($125 billion).1 The initial marijuana marketplace was limited to a few states, but emerging brands have developed sophisticated national marketing campaigns that could potentially have an [...]
Lire la suiteADDICTIONS & troubles psychiatriques, REPERES Fédération Addiction, mai 2019 Avant-Propos L’association entre les pathologies addictives et psychiatriques est une source majeure de préoccupation et de difficultés pour les professionnels et les équipes des deux champs mais aussi et avant tout pour les personnes concernées et leur entourage, avec une qualité de vie fortement altérée. Ces comorbidités, ces pathologies associées ou duelles, selon les qualifications, sont en effet difficiles à repérer et à prendre en charge, chaque filière de soins, psychiatrique ou addictologique, ayant tendance à concentrer son attention et ses interventions sur la pathologie de son domaine d’expertise. Leur pronostic est péjoratif, l’évolution [...]
Lire la suiteHepatotoxicity of a Cannabidiol-Rich Cannabis Extract in the Mouse Model Laura E. Ewing, Charles M. Skinner, Charles M. Quick, Stefanie Kennon-McGill, Mitchell R. McGill, Larry A. Walker, Mahmoud A. ElSohly, Bill J. Gurley and Igor Koturbash Molecules, 2019, 24, 1694 doi : 10.3390/molecules24091694 Abstract : The goal of this study was to investigate Cannabidiol (CBD) hepatotoxicity in 8-week-old male B6C3F1 mice. Animals were gavaged with either 0, 246, 738, or 2460 mg/kg of CBD (acute toxicity, 24 h) or with daily doses of 0, 61.5, 184.5, or 615 mg/kg for 10 days (sub-acute toxicity). These doses were the allometrically scaled mouse equivalent doses (MED) [...]
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