Étiquette : anxiété

The mixed serotonin receptor agonist psilocybin reduces threat-induced modulation of amygdala connectivity, Rainer Kraehenmann et al., 2016

The mixed serotonin receptor agonist psilocybin reduces threat-induced modulation of amygdala connectivity Rainer Kraehenmann, André Schmidt, Karl Friston, Katrin H. Preller, Erich Seifritz, Franz X. Vollenweider NeuroImage : Clinical, 2016, 11, 53–60 http://dx.doi.org/10.1016/j.nicl.2015.08.009   a b s t r a c t Stimulation of serotonergic neurotransmission by psilocybin has been shown to shift emotional biases away from negative towards positive stimuli. We have recently shown that reduced amygdala activity during threat processing might underlie psilocybin's effect on emotional processing. However, it is still not known whether psilocybin modulates bottom-up or top-down connectivity within the visual-limbic-prefrontal network underlying threat processing.We therefore analyzed our previous fMRI data using dynamic [...]

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Serotonergic hallucinogens/psychedelics could be promising treatments for depressive and anxiety disorders in endstage cancer, Rafael Guimarães dos Santos et al., 2019

Serotonergic hallucinogens/psychedelics could be promising treatments for depressive and anxiety disorders in endstage cancer Rafael Guimarães dos Santos, José Carlos Bouso and Jaime E. C. Hallak BMC Psychiatry, 2019, 19, 321 https://doi.org/10.1186/s12888-019-2288-z   Abstract In a recent issue of the BMC Psychiatry, the evidence of effectiveness of treatments for psychiatric conditions in end-stage cancer patients was reviewed (Johnson, 2018). The review was comprehensive, and included traditional and non-traditional/alternative treatments, including herbal medicines and spirituality. However, evidence showing that classic or serotonergic hallucinogens/psychedelics such as psilocybin and lysergic acid diethylamide (LSD) could be effective treatments for depressive and anxiety disorders in end-stage cancer was not included. In [...]

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Medical cannabis trial will target 20,000 UK patients, Jamie Doward and Lily Gordon Brown, The Guardian, 3 novembre 2019.

Medical cannabis trial will target 20,000 UK patients Jamie Doward and Lily Gordon Brown The GUARDIAN, Published on Sun 3 Nov 2019 https://www.theguardian.com/society/2019/nov/03/medical-cannabis-uk-clinical-trial-patients-nhs   Project backed by Royal College of Psychiatrists aims to be largest on drug’s use in Europe • Medical cannabis: Why are doctors still not prescribing it? Tilray medicinal cannabis growing facility in Canada. Photograph: Tilray Up to 20,000 patients in the UK are to be given medical cannabis over a two-year period in an initiative that aims to create the largest body of evidence on the drug in Europe. The move, to be unveiled on Thursday, is [...]

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Antidepressive and anxiolytic effects of ayahuasca : a systematic literature review of animal and human studies, Rafael G. dos Santos et al., 2016

Antidepressive and anxiolytic effects of ayahuasca : a systematic literature review of animal and human studies Rafael G. dos Santos, Flavia L. Osorio, José Alexandre S. Crippa, Jaime E.C. Hallak Revista Brasileira de Psiquiatria, 2016, 38, 65–72 doi:10.1590/1516-4446-2015-1701   ABSTRACT Objective : To conduct a systematic literature review of animal and human studies reporting anxiolytic or antidepressive effects of ayahuasca or some of its isolated alkaloids (dimethyltryptamine, harmine, tetrahydroharmine, and harmaline). Methods : Papers published until 3 April 2015 were retrieved from the PubMed, LILACS and SciELO databases following a comprehensive search strategy and using a predetermined set of criteria for article selection. Results : Five hundred and [...]

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Psychedelics : Where we are now, why we got here, what we must do, Sean J. Belouin & Jack E. Henningfield, 2018

Psychedelics : Where we are now, why we got here, what we must do Sean J. Belouin, Jack E. Henningfield Neuropharmacology, 2018, 142, 7e19 https://doi.org/10.1016/j.neuropharm.2018.02.018 a b s t r a c t The purpose of this commentary is to provide an introduction to this special issue of Neuropharmacology with a historical perspective of psychedelic drug research, their use in psychiatric disorders, research restricting regulatory controls, and their recent emergence as potential breakthrough therapies for several brain-related disorders. It begins with the discovery of lysergic acid diethylamide (LSD) and its promising development as a treatment for several types of mental illnesses during the 1940s. This was [...]

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Tribune pour l’expérimentation des psychédéliques en médecine, contre la dépression, l’anxiété, les addictions et pour les soins palliatifs, Société Psychédélique Française, 2019

Tribune pour l’expérimentation des psychédéliques en médecine, contre la dépression, l’anxiété, les addictions et pour les soins palliatifs. Société Psychédélique Française, novembre 2019   D’après l’Organisation mondiale de la santé, une personne sur quatre dans le monde sera affectée à un moment donné de sa vie par des troubles mentaux ou neurologiques. Or, après des décennies d’oubli, nous assistons en dehors de nos frontières à un regain de la recherche clinique psychothérapeutique sur les psychédéliques et au développement de thérapies novatrices impliquant ces substances. Les psychédéliques sont des composés, issus du monde vivant ou de la chimie, provoquant des effets analogues sur le psychisme [...]

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Medicinal cannabis not proven in mental health, study finds, Kate Kelland, Reuters, 2019

Medicinal cannabis not proven in mental health, study finds Kate Kelland Reuters, Health News, October 28, 2019 LONDON (Reuters) - Evidence is weak for whether medicinal cannabis treatments can relieve mental illnesses such as anxiety, depression and psychosis, and doctors should prescribe them with great caution, researchers said on Monday. In a review of scientific studies that analyzed the impact of medicinal cannabinoids on six mental health disorders, the researchers found “a lack of evidence for their effectiveness.” Their findings have important implications for countries such as the United States, Australia, Britain and Canada, where medical cannabis is being made available for patients with certain [...]

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What Are the Benefits of CBD ?, New York Times, 16 octobre 2019

What Are the Benefits of CBD ? More than 60 percent of CBD users were taking it for anxiety, according to a survey of 5,000 people. Does it help? THE NEW YORK TIMES,   By Dawn MacKeen Published Oct. 16, 2019 https://www.nytimes.com/2019/10/16/style/self-care/cbd-oil-benefits.html Credit...Photo Illustration by The New York Times; Shutterstock The CBD industry is flourishing, conservatively projected to hit $16 billion in the United States by 2025. Already, the plant extract is being added to cheeseburgers, toothpicks and breath sprays. More than 60 percent of CBD users have taken it for anxiety, according to a survey of 5,000 people, conducted by the Brightfield Group, a cannabis market [...]

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Bibliographie : Cannabis et Cannabinoides en Psychiatrie, Docteur Christian Sueur, GRECC, novembre 2019

Bibliographie : Cannabis et Cannabinoides en Psychiatrie Docteur Christian Sueur, GRECC, décembre 2019.   Cannabinoïdes et Anxiété Cannabinoïdes et psychose Cannabinoïdes et dépression Cannabis et addiction   2e version, décembre 2019....   Cannabinoides et PTSD : cf la Bibliographie : Cannabinoïdes et PTSD https://www.grecc.org/publications/bibliographies/bibliographie-cannabinoides-et-ptsd-docteur-christian-sueur-grecc-2019/ Substances psychédéliques et Addictions : cf Bibliographie : Substances psychédéliques et  et traitements des Addictions https://www.grecc.org/publications/bibliographies/bibliographie-substances-psychedeliques-et-cannabinoides-et-traitement-des-addictions-dr-christian-sueur-grecc-octobre-2019/

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Cannabinoids for the treatment of mental disorders and symptoms of mental disorders : a systematic review and meta-analysis, Nicola Black et al., 2019,

Cannabinoids for the treatment of mental disorders and symptoms of mental disorders : a systematic review and meta-analysis Nicola Black, Emily Stockings, Gabrielle Campbell, Lucy T. Tran, Dino Zagic, Wayne D. Hall, Michael Farrell, Louisa Degenhardt Lancet Psychiatry, 2019 https://doi.org/10.1016/S2215-0366(19)30401-8   Summary Background : Medicinal cannabinoids, including medicinal cannabis and pharmaceutical cannabinoids and their synthetic derivatives, such as tetrahydrocannabinol (THC) and cannabidiol (CBD), have been suggested to have a therapeutic role in certain mental disorders. We analysed the available evidence to ascertain the effectiveness and safety of all types of medicinal cannabinoids in treating symptoms of various mental disorders. Methods : For this systematic review and meta-analysis [...]

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