Cannabinoids, Neurogenesis and Antidepressant Drugs : Is there a Link ? Manoela Viar Fogaça, Ismael Galve-Roperh, Francisco Silveira Guimarães and Alline Cristina Campos Current Neuropharmacology, 2013, 11, 263-275 Abstract Similar to clinically used antidepressants, cannabinoids can also regulate anxiety and depressive symptoms. Although the mechanisms of these effects are not completely understood, recent evidence suggests that changes in endocannabinoid system could be involved in some actions of antidepressants. Chronic antidepressant treatment modifies the expression of CB1 receptors and endocannabinoid (EC) content in brain regions related to mood and anxiety control. Moreover, both antidepressant and cannabinoids activate mitogen-activated protein (MAP) kinase and phosphoinositide 3- kinase(PI3 [...]
Lire la suiteBipolar disorder and the endocannabinoid system Shokouh Arjmand, Mina Behzadi, Kristi A. Kohlmeier, Shahrzad Mazhari, Abdolreza Sabahi and Mohammad Shabani Acta Neuropsychiatrica, 2019, 1-9. https://doi.org/10.1017/neu.2019.21 Abstract Objective : Bipolar disorder (BD) is a debilitating, lifelong neuropsychiatric illness characterised by unsteady mood states which vacillate from (hypo)mania to depression. Despite the availability of pharmaceutical agents which can be effective in ameliorating the acute affective symptoms and prevent episodic relapse, BD is inadequately treated in a subset of patients. The endocannabinoid system (ECS) is known to exert neuromodulatory effects on other neurotransmitter systems critical in governing emotions. Several studies ranging from clinical to molecular, as well as [...]
Lire la suiteRole of the Endocannabinoid System in the Pathophysiology of Schizophrenia: Implications for Pharmacological Intervention F.M. Leweke, J.K. Mueller, B.Lange, S. Fritze, C.E. Topor, D. Koethe, C. Rohleder CNS Drugs, 2018 Jul;32(7):605-619. doi: 10.1007/s40263-018-0539-z. Abstract The term schizophrenia describes a group of multifaceted psychiatric conditions causing significant impairment of the quality of life of affected patients. Although multiple pharmacological treatment options exist, e.g. first- or second-generation antipsychotics, these therapeutics often cause disturbing side effects, such as extrapyramidal symptoms, prolactin increase, sexual dysfunction and/or metabolic syndrome. Furthermore, cognitive impairments and negative symptoms, two factors significantly influencing the course and outcome, are not sufficiently addressed by the available [...]
Lire la suiteCannabis thérapeutique : si tout va bien il ne sera pas disponible avant un certain temps Journalisme et Santé Publique Le blog de Jean-Yves Nau, journaliste et docteur en médecine 17 Octobre 2019 https://jeanyvesnau.com/2019/10/17/cannabis-therapeutique-si-tout-va-bien-il-ne-sera-pas-disponible-avant-un-certain-temps/ Bonjour Le temps de l’administration du médicament n’est pas celui du patient souffrant. Il y a un an on découvrait un mouvement de l’Agence nationale de sécurité médicament (ANSM) : « Évaluation de la pertinence et de la faisabilité de la mise à disposition du cannabis thérapeutique en France ». On apprenait alors qu’un Comité Scientifique Spécialisé Temporaire créé pour un an, aurait pour mission « d’évaluer la pertinence de développer en France l’utilisation thérapeutique du cannabis pour [...]
Lire la suiteOral Cannabidiol Does Not Convert to Δ8-THC or Δ9-THC in Humans : A Pharmacokinetic Study in Healthy Subjects Jose´ Alexandre S. Crippa, Antonio Waldo Zuardi, Jaime Eduardo Cecılio Hallak, Bruna Miyazawa, Sandra Aparecido Bernardo, Carmem Maria Donaduzzi, Silvane Guzzi, Wagner Alex Jann Favreto, Alline Campos, Maria Eugenia C. Queiroz, Francisco S. Guimaraes, Patrıcia Moura da Rosa Zimmermann, Letıcia Mello Rechia, Volnei Jose Tondo Filho, and Liberato Brum Junior Cannabis and Cannabinoid Research, 2019, Volume X, Number X DOI: 10.1089/can.2019.0024 Abstract Introduction: Recent studies have suggested that cannabidiol (CBD) could interconvert into Delta-8- and Delta-9- tetrahydrocannabinol. Materials and Methods: Thus, we tested the plasma samples of 120 healthy [...]
Lire la suiteComparison of the Neurotoxic and Seizure-Inducing Effects of Synthetic and Endogenous Cannabinoids with Δ9-Tetrahydrocannabinol Chris S. Breivogel, Jacob R. Wells, Amreen Jonas, Artik H. Mistry, Morgan L. Gravley, Rajul M. Patel, Brianna E. Whithorn, and Bonnie M. Brenseke Cannabis and Cannabinoid Research, 2019, Volume X, Number X DOI: 10.1089/can.2019.0003 Abstract Introduction : Synthetic cannabinoids (SCs) are commonly found in preparations used as recreational drugs. Although severe adverse health effects are not generally associated with cannabis use, a rising number of studies document seizures and even death after SC use. In this study, a mouse model is used to investigate the hypothesis that SCs are more [...]
Lire la suite2-Linoleoylglycerol Is a Partial Agonist of the Human Cannabinoid Type 1 Receptor that Can Suppress 2-Arachidonolyglycerol and Anandamide Activity Leanne Lu, Gareth Williams, and Patrick Doherty Cannabis and Cannabinoid Research, 2019, Volume X, Number X Doi : 10.1089/can.2019.0030 Abstract Introduction : The cannabinoid type 1 (CB1) receptor and cannabinoid type 2 (CB2) receptor are widely expressed in the body and anandamide (AEA) and 2-arachidonoylglycerol (2-AG) are their best characterized endogenous ligands. The diacylglycerol lipases (diacylglycerol lipase alpha and diacyl-glycerol lipase beta) not only synthesize essentially all the 2-AG in the body but also generate other monoacylglycerols, including 2-linoleoylglycerol (2-LG). This lipid has been proposed to modulate endocannabinoid [...]
Lire la suiteDu cannabis dans le PLFSS Le député Olivier Véran (LREM, Isère) va défendre un amendement introduisant une expérimentation du cannabis thérapeutique. © FOTOLIA_FABIOBERTI.IT Les choses se précisent. Après que l'Agence nationale de sécurité du médicament et des produits de santé (ANSM) a souscrit, début juillet 2019, aux propositions du comité scientifique spécialisé temporaire sur le cadre pratique de l’accès au cannabis à visée thérapeutique en vue d’une expérimentation en France, c'est désormais le cadre légal qui va être discuté à l'Assemblée nationale. Invité à l'antenne de RTL, le neurologue et député de la majorité, Olivier Véran, a ainsi expliqué qu'il allait présenter et défendre un amendement au projet de loi de financement de la sécurité sociale (PLFSS) pour 2020 visant à mettre en place, au plus vite, une expérimentation en milieu hospitalier. Selon ses dires, elle devrait concerner « environ 3 000 malades » qui seront « suivis par des [...]
Lire la suiteThe endocannabinoid system : an overview Natalia Battista, Monia Di Tommaso, Monica Bari and Mauro Maccarrone Frontiers in Behavioral Neuroscience, 2012|Volume 6|Article 9 | 1 doi: 10.3389/fnbeh.2012.00009 Upon the identification of anandamide (AEA) in the porcine brain, numerous studies contributed to the current state of knowledge regarding all elements that form the “endocannabinoidsystem (ECS).” How this complex system of receptors, ligands, and enzymes is integrated in helping to regulate fundamental processes at level of central nervous and peripheral systems and how its regulation and dysregulation might counteract disturbances of such functions, is now a days still under investigation. However, the most recent advances on [...]
Lire la suiteCannabinoids, Endocannabinoids and Cancer Daniel J. Hermanson and Lawrence J. Marnett Cancer Metastasis Reviews, 2011, 30, (3-4), 599–612. doi:10.1007/s10555-011-9318-8. 1. Introduction 1.1 Cannabinoid Function Endocannabinoids are bioactive lipids that have a range of interesting activities mediated by two G-protein-coupled receptors (CB1 and CB2) and other putative targets [1-3]. The CB1 receptor is present in the central nervous system and mediates the psychotropic effects of exogenous cannabinoids such as Δ9-tetrahydrocannabinol (THC), the active component of marijuana. In the brain, endocannabinoids and cannabinoids combine with CB1 cannabinoid receptors on axon terminals and regulate ion channel activity and neurotransmitter release [4]. Binding to the CB1 receptor is responsible for [...]
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