Determination of cannabinoids in Cannabis sativa L. samples for recreational, medical, and forensic purposes by reversed-phase liquid chromatography-ultraviolet detection Sanja Zivovinovic, Ruth Alder, Martina D. Allenspach and Christian Steuer Journal of Analytical Science and Technology, 2018, 9, 27, 1-10 doi : 10.1186/s40543-018-0159-8 Abstract Background : Currently, an increasing demand of cannabis-derived products for recreational and medical use is observed. Therefore, the reliable and fast quantification of cannabinoids in hemp samples is essential for the control of product from Cannabis sativa, L. strains. In general, gas chromatography (GC) is the method of choice for the quantification of cannabinoids whereas this method is time consuming and 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 suiteDans 3 heures, le premier webinaire de la série d'événements gratuits de l'IACM commencera, qui se déroulera jusqu'au 3 décembre 2020. Tous les webinaires peuvent être consultés gratuitement jusqu'au 31 mars 2021. Il n'y a donc aucun problème si vous manquez un rendez-vous. O. k. Vous pouvez copier le Magath ici https://new.cannabis-med.org/e2020 15 octobre 2020, 18 heures (CET) Dr. Roger Pertwee Les utilisations thérapeutiques potentielles de certains cannabinoïdes dérivés du cannabis et synthétiques révélées par leurs propriétés pharmacologiques -- Quels sont les médicaments cannabinoïdes approuvés qui ont déjà été développés ? -- Existe-t-il des cannabinoïdes végétaux (phytocannabinoïdes) ayant des propriétés pharmacologiques, pour lesquels des applications thérapeutiques [...]
Lire la suiteThe role of cannabinoid transmission in emotional memory formation: implications for addiction and schizophrenia Huibing Tan, Tasha Ahmad, Michael Loureiro, Jordan Zunder and Steven R. Laviolette Frontiers in Psychiatry, 2014,Vol 5, Article 73, 1-12 doi : 10.3389/fpsyt.2014.00073 Emerging evidence from both basic and clinical research demonstrates an important role for endo-cannabinoid (ECB) signaling in the processing of emotionally salient information, learning, and memory. Cannabinoid transmission within neural circuits involved in emotional processing has been shown to modulate the acquisition, recall, and extinction of emotionally salient memories and importantly, can strongly modulate the emotional salience of incoming sensory information. Two neural regions in particular, the [...]
Lire la suiteRecent Advances in the Neuropsychopharmacology of Serotonergic Hallucinogens Adam L. Halberstadt Behavioral Brain Research, 2015, 15, 277, 99–120. doi : 10.1016/j.bbr.2014.07.016 Abstract Serotonergic hallucinogens, such as (+)-lysergic acid diethylamide, psilocybin, and mescaline, are somewhat enigmatic substances. Although these drugs are derived from multiple chemical families, they all produce remarkably similar effects in animals and humans, and they show cross-tolerance. This article reviews the evidence demonstrating the serotonin 5-HT2A receptor is the primary site of hallucinogen action. The 5-HT2A receptor is responsible for mediating the effects of hallucinogens in human subjects, as well as in animal behavioral paradigms such as drug discrimination, head twitch response, prepulse [...]
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 suiteWhat Can We Learn About Schizophrenia From Studying the Human Model, Drug-Induced Psychosis ? Robin M. Murray, Alessandra Paparelli, Paul D. Morrison, Arianna Marconi, and Marta Di Forti American Journal of Medical Genetics, Part B, 2013, 162B, 661–670. Doi : 10.1002/ajmg.b.32177 When drug-induced psychoses were first identified in the mid- 20th century, schizophrenia was considered a discrete disease with a likely genetic cause. Consequently, drug-induced psychoses were not considered central to understanding schizophrenia as they were thought to be phenocopies rather than examples of the illness secondary to a particular known cause. However, now that we know that schizophrenia is a clinical syndrome with [...]
Lire la suite5-HT1A receptors are involved in the cannabidiol-induced attenuation of behavioural and cardiovascular responses to acute restraint stress in rats Leonardo B.M. Resstel, Rodrigo F. Tavares, Sabrina F.S. Lisboa, Sâmia R.L. Joca, Fernando M.A. Corrêa and Francisco S. Guimarães British Journal of Pharmacology, 2009, 156, 181–188; doi : 10.1111/j.1476-5381.2008.00046.x Background and purpose : Cannabidiol (CBD) is a non-psychotomimetic compound from Cannabis sativa which induces anxiolytic- and antipsychotic-like effects in rodents. These effects could be mediated by facilitation of the endocannabinoid system or by the activation of 5-HT1A receptors. As either of these mechanisms could promote adaptation to inescapable stress, the aim of the present work [...]
Lire la suiteNew Data Show No Link Between Cannabis and Stroke Sue Hughes Medscape.com, June 09, 2020 https://www.medscape.com/viewarticle/931988_print A new study that used admission urine toxicology tests to ascertain drug use found no independent association between recent cannabis use and the incidence of acute ischemic stroke. "Previous studies have shown conflicting data on cannabis use and stroke. Our study is a step forward in that we had quite a large population and we had an objective measure of marijuana use with the urine screen, whereas some previous studies have just relied on asking the patient about marijuana use," senior author Shreyas Gangadhara, MD, University of Mississippi Medical Center, Jackson, [...]
Lire la suiteRelated Symptoms in People With Multiple Sclerosis : Results From a Retrospective Multicenter Study Francesco Patti, Clara Grazia Chisari, Claudio Solaro, Maria Donata Benedetti , Eliana Berra , Assunta Bianco, Roberto Bruno Bossio, Fabio Buttari, Letizia Castelli, Paola Cavalla , Raffaella Cerqua, Gianfranco Costantino, Claudio Gasperini, Angelica Guareschi, Domenico Ippolito, Roberta Lanzillo, Giorgia Teresa Maniscalco, Manuela Matta, Damiano Paolicelli, Loredana Petrucci, Simona Pontecorvo, Isabella Righini, Margherita Russo, Francesco Saccà, Giovanna Salamone, Elisabetta Signoriello, Gabriella Spinicci, Daniele Spitaleri, Eleonora Tavazzi, Maria Trotta, Mauro Zaffaroni, Mario Zappia, SA.FE. group Doi : 10.1007/s10072-020-04413-6 Abstract Introduction : The approval of 9-δ-tetrahydocannabinol (THC)+cannabidiol (CBD) oromucosal spray (Sativex®) in Italy as an add-on medication for the management of moderate to severe spasticity in multiple sclerosis (MS) has provided a new opportunity for MS patients with drug-resistant spasticity. We aimed [...]
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