Nouveaux produits de synthèse - Synthèse des connaissances Copyright © Observatoire Français des Drogues et des Toxicomanies, mai 2018 https://www.drogues.gouv.fr/publication/nouvelles-substances-psychoactives-un-guide-services-durgences Présentation L’abréviation NPS est généralement utilisée en France en référence aux Nouveaux Produits de synthèse. Ils désignent un éventail très hétérogène de substances qui imitent les effets de différents produits illicites (ecstasy, amphétamines, cocaïne, cannabis, etc.). Leurs structures moléculaires s’en rapprochent, sans être tout à fait identiques. Cette spécificité leur permet, au moins à court terme, de contourner la législation sur les stupéfiants ; certains sont classés, d’autres n’ont pas de statut juridique clair. Généralement achetés sur Internet, les NPS sont connus soit par leurs noms [...]
Lire la suiteEarly phytocannabinoid chemistry to endocannabinoids and beyond Raphael Mechoulam, Lumír O. Hanuš, Roger Pertwee and Allyn C. Howlett NATURE REVIEWS | NEUROSCIENCE, 2014, 15, 757-764. Doi : 10.1038/nrm3811 Abstract Isolation and structure elucidation of most of the major cannabinoid constituents — including Δ9-tetrahydrocannabinol (Δ9-THC), which is the principal psychoactive molecule in Cannabis sativa — was achieved in the 1960s and 1970s. It was followed by the identification of two cannabinoid receptors in the 1980s and the early 1990s and by the identification of the endocannabinoids shortly thereafter. There have since been considerable advances in our understanding of the endocannabinoid system and its function in the [...]
Lire la suiteΔ 9‑Tetrahydrocannabinol Toxicity and Validation of Cannabidiol on Brain Dopamine Levels : An Assessment on Cannabis Duplicity Swapnali Chetia · Gaurab Borah Natural Products and Bioprospecting, 2020, 10, 285–296 doi : 10.1007/s13659-020-00263-z Abstract Δ9-tetrahydrocannabinol (THC) of cannabis is the main psychoactive component which is a global significant concern to human health. Evaluation on THC reported its drastic effect on the brain dopaminergic (DAergic) system stimulating mesolimbic DA containing neurons thereby increasing the level of striatal DA. Cannabidiol (CBD), with its anxiolytic and anti-psychotic property, is potent to ameliorate the THC-induced DAergic variations. Legal authorization of cannabis use and its analogs in most countries led to [...]
Lire la suiteNeural Mechanisms for the Cannabinoid Modulation of Cognition and Affect in Man : A Critical Review of Neuroimaging Studies Sagnik Bhattacharyya, Zerrin Atakan, Rocio Martin-Santos, Jose A. Crippa and Philip K. McGuire Current Pharmaceutical Design, 2012, 18, 5045-5054 Abstract Pharmacological challenge in conjunction with neuroimaging techniques has been employed for over two decades now to understand the neural basis of the cognitive, emotional and symptomatic effects of the main ingredients of cannabis, the most widely used illicit drug in the world. This selective critical review focuses on the human neuroimaging studies investigating the effects of delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD), the two main cannabinoids [...]
Lire la suiteInfection VIH et cannabinoides. Etat des lieux et pistes en recherche clinique Roland Tubiana et Fabienne Caby, 24e Rencontres du RESPADD - GRECC, "Usages Cliniques des Cannabinoïdes" 21 juin 2019 (...) Inflammation/ Activation immune et CB Chez les PVVIH traités efficacement, la consommation de CB a été associée: – À des niveaux moins élevés de marqueurs d’inflammation (L B TNF-α+ )/ activation immune (L TCD4+ et CD8+ HLA-DR+CD38+) – A une décroissance plus rapide du niveau d’ADN proviralVIH Mécanismes sous jacents CB (Cannabis Sativa) : > 60 cannabinoides, > 200 non cannabinoides • Cannabinoides: Composant capables d’activer la proteine G couplée aux récepteurs CB1 ou CB2 • Les 2 plus étudiés: Δ9-THC [...]
Lire la suiteThe Intricate Influence of the Placebo Effect on Medical Cannabis and Cannabinoids Jürg Gertsch Medical Cannabis Cannabinoids, 2018, 1, 60–64 Doi : 10.1159/000489291 Abstract The botanical drug cannabis flos (inflorescence of Cannabis sativa L.) has a unique popular status as being a potent recreational drug and bona fide universal remedy (panacea). Generally, cannabinoids exert therapeutic effects in a broad range of pathophysiologies related to inflammation, pain, metabolic and stress-related conditions in preclinical animal models. However, the translation of such data to humans still lacks an evidence-based foundation. Motivated by the booming cannabis manufacturing industry and the increasing worldwide self-therapy by patients, there are cumulative accounts [...]
Lire la suiteCannabinoids and the Coronavirus Kevin P. Hill Cannabis and Cannabinoid Research, 2020, Volume 5, Number 2, Doi : 10.1089/can.2020.0035 Introduction These are uncertain times as we attempt to manage our lives during the Coronavirus Covid-19 pandemic. It is not surprising, as possible treatments for Covid-19 are discussed, that people wonder about a role for cannabinoids, another topic associated with a lack of clarity about their therapeutic efficacy. Patients commonly ask clinicians about the benefits and risks of cannabinoids and now patients have begun to ask about cannabinoids as they relate to Covid-19. This interest creates an opportunity to strengthen the therapeutic alliance between patients and [...]
Lire la suiteMedical cannabis and insomnia in older adults with chronic pain: a cross-sectional study Sharon R. Sznitman, Simon Vulfsons, David Meiri, Galit Weinstein BMJ Supportive & Palliative Care, 2020, 0, 1–6. doi : 10.1136/bmjspcare-2019-001938 Abstract Objectives : Medical cannabis (MC) is increasingly being used for treatment of chronic pain symptoms. Among patients there is also a growing preference for the use of MC to manage sleep problems. The aim of the current study was to examine the associations between use of whole plant cannabis and sleep problems among chronic pain patients. Methods : A total of 128 individuals with chronic pain over the age of 50 years [...]
Lire la suiteShort- and Long-Term Effects of Cannabis on Headache and Migraine Carrie Cuttler, Alexander Spradlin, Michael J. Cleveland, and Rebecca M. Craft Journal of Pain, 2019. doi : 10.1016/j.jpain.2019.11.001 Highlights Headache and migraine ratings were reduced by nearly 50% after using cannabis Men reported larger reductions in headache after cannabis use than women Cannabis concentrates were related to larger reductions in headache than flower Evidence for tolerance to effects of cannabis on headache and migraine was detected Evidence for medication overuse headache was not detected Abstract Use of cannabis to alleviate headache and migraine is relatively common, yet research on its effectiveness remains sparse. We sought to [...]
Lire la suiteAutorisation Temporaire Exceptionnelle d'Utilisation compassionelle du cannabis médical Laurent Appel (conseil en communication spécialisé en réduction des risques) 06.81.54.10.96 mailto : laurent.appel@asud.org relayé par www.Principesactifs.org, 26/03/2020 La chaine de soins et de médicament est en tension maximum. Le rôle de chacun est de détecter les failles actuelles et surtout futures pour éviter d'ajouter encore de la tension et faire tout sauter.Le cannabis médical peut jouer un rôle majeur tant comme solution thérapeutique alors que qon manque sera un facteur important de tensions. D'un point de vue médical, il va manquer aux patients déjà traités clandestinement et surtout au million de patients en automédication. Nous risquons donc avoir [...]
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