The link between childhood trauma and dissociation in frequent users of classic psychedelics and dissociatives Sascha B. Thal, Judith K. Daniels & Henrik Jungaberle Journal of Substance Use, may 2019 https://doi.org/10.1080/14659891.2019.1614234 ABSTRACT Background : Childhood trauma severity is associated with the level of subsequent substance use as well as with the self-reported severity of dissociation. Classic psychedelics and dissociatives target neurotransmitter systems thought to be involved in the onset of dissociative symptoms and may evoke severe and long-lasting symptoms of depersonalization in some users. However, it is currently unclear whether drug use puts people with a history of childhood trauma at higher risk of developing [...]
Lire la suitePsychedelic drugs in the treatment of anxiety, depression and addiction Tor-Morten Kvam, Lowan H. Stewart & Ole A. Andreassen Tidsskriftet, Den Norske Legeforening, November 2018 https://www.researchgate.net/publication/332136512 B A C K G R O U N D There is growing interest in the use of psychedelic drugs for the treatment of mental disorders. The drugs are considered safe when administered within a clinical framework. Older studies performed prior to 1970 had methodological shortcomings, but studies in recent years have shown promising results regarding the use of psychedelic drugs in unipolar depression, depression in life-threatening illness, anxiety and addiction. The aim of this literature review is to [...]
Lire la suiteKetamine Promising in Cocaine Addiction Batya Swift Yasgur, MA, LSW American Journal of Psychiatry, July 05, 2019 https://doi.org/10.1176/appi.ajp.2019.18101123 A single ketamine infusion combined with mindfulness-based relapse prevention therapy (MBRP) improves abstinence and cuts cravings in cocaine-dependent adults, new research suggests. Results of a randomized control trial show that rates of abstinence were significiantly higher in patients who received ketamine plus MBRP compared to control patients. Moreover, those in the group that received ketamine were significantly less likely to experience relapse compared to control persons, and cravings were also significantly lower in the ketamine group throughout the trial. "In individuals receiving MBRP, a single ketamine infusion led to significantly greater [...]
Lire la suiteEDITORIAL Should addiction researchers be interested in psychedelic science ? Stephen Bright, Martin Williams & David Caldicott Australasian Professional Society on Alcohol and other Drugs, Drug and Alcohol Review, 2017 DOI: 10.1111/dar.12544 As recently noted by Strauss, Bright and Williams [1], while much of the Western world has been experiencing a renaissance in research into ‘psychedelic science’ over the past decade [2], there has been no such research conducted in Australia. In Europe and the USA, studies have been conducted into lysergic acid diethylamide (LSD) that have improved our understanding of brain function [3] and reduced existential anxiety associated with dying [4], while psilocybin-assisted psychotherapy has [...]
Lire la suiteEpigenetic Effects of Cannabis Exposure Henrietta Szutorisz and Yasmin L. Hurd Biological Psychiatry, 2016, 79, 7, 586–594. doi:10.1016/j.biopsych.2015.09.014. Abstract The past decade has witnessed a number of societal and political changes that have raised critical questions about the long-term impact of marijuana (Cannabis sativa) that are especially important given the prevalence of its abuse and that potential long-term effects still largely lack scientific data. Disturbances of the epigenome have generally been hypothesized as the molecular machinery underlying the persistent, often tissue-specific transcriptional and behavioral effects of cannabinoids that have been observed within one’s lifetime and even into the subsequent generation. Here, we provide an overview [...]
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 suitePilot study of the 5-HT2AR agonist psilocybin in the treatment of tobacco addiction Matthew W Johnson, Albert Garcia-Romeu, Mary P Cosimano and Roland R Griffiths Journal of Psychopharmacology, 2014, Vol. 28(11) 983–992 © The Author(s) 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav DOI: 10.1177/0269881114548296 Abstract Despite suggestive early findings on the therapeutic use of hallucinogens in the treatment of substance use disorders, rigorous follow-up has not been conducted. To determine the safety and feasibility of psilocybin as an adjunct to tobacco smoking cessation treatment we conducted an openlabel pilot study administering moderate (20 mg/70 kg) and high (30 mg/70 kg) doses of psilocybin within a structured 15-week smoking cessation treatment [...]
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 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 suiteTherapeutic Prospects of Cannabidiol for Alcohol Use Disorder and Alcohol-Related Damages on the Liver and the Brain Julia De Ternay, Mickaël Naassila Mikail Nourredine, Alexandre Louvet, François Bailly, Guillaume Sescousse, Pierre Maurage, Olivier Cottencin, Patrizia Maria Carrieri and Benjamin Rolland Frontiers in Pharmacology, 2019, Volume 10, Article 627 doi : 10.3389/fphar.2019.00627 Abstract Background : Cannabidiol (CBD) is a natural component of cannabis that possesses a widespread and complex immunomodulatory, antioxidant, anxiolytic, and antiepileptic properties. Much experimental data suggest that CBD could be used for various purposes in alcohol use disorder (AUD) and alcohol-related damage on the brain and the liver. Aim : To provide a rationale for [...]
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