Étiquette : essai clinique

MDMA-Induced Dissociative State not Mediated by the 5-HT2A Receptor, Drew J. Puxty et al., 2017

MDMA-Induced Dissociative State not Mediated by the 5-HT2A Receptor Drew J. Puxty, Johannes G. Ramaekers, Rafael de la Torre, Magí Farré, Neus Pizarro, Mitona Pujadas and Kim P. C. Kuypers Frontiers in Pharmacology, 2017, Volume 8, Article 455 Doi : 10.3389/fphar.2017.00455   Previous research has shown that a single dose of MDMA induce a dissociative state, by elevating feelings of depersonalization and derealization. Typically, it is assumed that action on the 5-HT2A receptor is the mechanism underlying these psychedelic experiences. In addition, other studies have shown associations between dissociative states and biological parameters (heart rate, cortisol), which are elevated by MDMA. In order to investigate [...]

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Abuse potential assessment of cannabidiol (CBD) in recreational polydrug users : A randomized, double-blind, controlled trial, Kerri A. Schoedel et al., 2018

Abuse potential assessment of cannabidiol (CBD) in recreational polydrug users : A randomized, double-blind, controlled trial Kerri A. Schoedel, Isabella Szeto, Beatrice Setnik, Edward M. Sellers, Naama Levy-Cooperman, Catherine Mills, Tilden Etges, Kenneth Sommerville Epilepsy & Behavior, 2018, 88, 162–171. Doi : 10.1016/j.yebeh.2018.07.027   a b s t r a c t Rationale : Treatment with a highly purified oral solution of cannabidiol (CBD), derived from the plant Cannabis sativa L., demonstrated some evidence of central nervous system (CNS)-related adverse events in patients enrolled in phase 3 trials for treatment of childhood-onset epilepsy. Cannabidiol was categorized as a Schedule 1 substance by the United States Drug [...]

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Cannabis species and cannabinoid concentration preference among sleep-disturbed medicinal cannabis users, Katherine A. Belendiuk et al., 2015

Cannabis species and cannabinoid concentration preference among sleep-disturbed medicinal cannabis users Katherine A. Belendiuk, Kimberly A. Babson, Ryan Vandrey, Marcel O. Bonn-Miller Addictive Behaviors, 2015, 50, 178–181 doi : 10.1016/j.addbeh.2015.06.032   a b s t r a c t Introduction : Individuals report using cannabis for the promotion of sleep, and the effects of cannabis on sleep may vary by cannabis species. Little research has documented preferences for particular cannabis types or cannabinoid concentrations as a function of use for sleep disturbances. Methods : 163 adults purchasing medical cannabis for a physical or mental health condition at a cannabis dispensary were recruited. They provided self-report of (a)whether [...]

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Use of Cannabidiol for the Treatment of Anxiety : A Short Synthesis of Pre-Clinical and Clinical Evidence, Madison Wright et al., 2019

Use of Cannabidiol for the Treatment of Anxiety : A Short Synthesis of Pre-Clinical and Clinical Evidence Madison Wright, Patricia Di Ciano, and Bruna Brands Cannabis and Cannabinoid Research, 2019, Volume X, Number X, 1-6. Doi : 10.1089/can.2019.0052   Abstract Anxiety disorders have the highest lifetime prevalence of any mental illness worldwide, leading to high societal costs and economic burden. Current pharmacotherapies for anxiety disorders are associated with adverse effects and low efficacy. Cannabidiol (CBD) is a constituent of the Cannabis plant, which has potential therapeutic properties for various indications. After the recent legalization of cannabis, CBD has drawn increased attention as a potential treatment, as [...]

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Microdosing psychedelics : Demographics, practices, and psychiatric comorbidities, Daniel Rosenbaum, et al., 2020

Microdosing psychedelics: Demographics, practices, and psychiatric comorbidities Daniel Rosenbaum, Cory Weissman, Thomas Anderson, Rotem Petranker, Le-Anh Dinh-Williams, Katrina Hui and Emma Hapke Journal of Psychopharmacology, 2020, 1-11. doi.org/10.1177/0269881120908004   Abstract Rationale : Microdosing psychedelics – the practice of consuming small, sub-hallucinogenic doses of substances such as LSD or psilocybin – is gaining attention in popular media but remains poorly characterized. Contemporary studies of psychedelic microdosing have yet to report the basic psychiatric descriptors of psychedelic microdosers. Objectives : To examine the practices and demographics of a population of psychedelic microdosers – including their psychiatric diagnoses, prescription medications, and recreational substance use patterns – to develop a foundation [...]

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Role of the 5-HT2A Receptor in Self- and Other-Initiated Social Interaction in Lysergic Acid Diethylamide-Induced States : A Pharmacological fMRI Study, Katrin H. Preller et al., 2018

Role of the 5-HT2A Receptor in Self- and Other-Initiated Social Interaction in Lysergic Acid Diethylamide-Induced States : A Pharmacological fMRI Study Katrin H. Preller, Leonhard Schilbach, Thomas Pokorny, Jan Flemming, Erich Seifritz, and Franz X. Vollenweider The Journal of Neuroscience, 2018, 38, (14), 3603–3611. Doi : 10.1523/JNEUROSCI.1939-17.2018   Distortions of self-experience are critical symptoms of psychiatric disorders and have detrimental effects on social interactions. In light of the immense need for improved and targeted interventions for social impairments, it is important to better understand the neurochemical substrates of social interaction abilities. We therefore investigated the pharmacological and neural correlates of self- and other-initiated social interaction. In [...]

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A single dose of cannabidiol reduces blood pressure in healthy volunteers in a randomized crossover study, Khalid A. Jadoon et al., 2017

A single dose of cannabidiol reduces blood pressure in healthy volunteers in a randomized crossover study Khalid A. Jadoon, Garry D. Tan, and Saoirse E. O’Sullivan JCI Insight, 2017, 2, (11), e93760 Doi : 10.1172/jci.insight.93760   BACKGROUND. Cannabidiol (CBD) is a nonpsychoactive phytocannabinoid used in multiple sclerosis and intractable epilepsies. Preclinical studies show CBD has numerous cardiovascular benefits, including a reduced blood pressure (BP) response to stress. The aim of this study was to investigate if CBD reduces BP in humans. METHODS. Nine healthy male volunteers were given 600 mg of CBD or placebo in a randomized, placebo-controlled, double-blind, crossover study. Cardiovascular parameters were monitored using [...]

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Cannabidiol treatment in an adolescent with multiple substance abuse, social anxiety and depression, Clarissa Laczkovics et al., 2020

Cannabidiol treatment in an adolescent with multiple substance abuse, social anxiety and depression. Case Report Clarissa Laczkovics · Oswald D. Kothgassner · Anna Felnhofer · Claudia M. Klier Neuropsychiatrie, 2020, 4 p. Doi : 10.1007/s40211-020-00334-0 Summary In this report, we present a case of a 16,9- year-old patient with multiple substance use disorder (cannabis, MDMA, cocaine, ecstacy), severe depression, social phobia and narcissistic personality disorder. We administered Cannabidiol (CBD) capsules in different dosages (starting dosage 100 mg up to 600 mg over 8 weeks) after unsuccessful treatment with antidepressants. CBD was a safe and well tolerated medication for this patient. Upon treatment with CBD and [...]

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Ketamine Promising in Cocaine Addiction, Batya Swift Yasgur, 2019

Ketamine Promising in Cocaine Addiction Batya Swift Yasgur, MA, LSW Medscape.com, July 05, 2019 https://www.medscape.com/viewarticle/915260_print   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 odds [...]

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Intensity of Mystical Experiences Occasioned by 5-MeO-DMT and Comparison With a Prior Psilocybin Study, Joseph Barsuglia et al., 2018

Intensity of Mystical Experiences Occasioned by 5-MeO-DMT and Comparison With a Prior Psilocybin Study Joseph Barsuglia, Alan K. Davis, Robert Palmer, Rafael Lancelotta, Austin-Marley Windham-Herman, Kristel Peterson, Martin Polanco, Robert Grant and Roland R. Griffiths Frontiers in Psychology, 2018, Vol 9, Article doi : 10.3389/fpsyg.2018.02459   5-MeO-DMT is a psychoactive substance found in high concentrations in the bufotoxin of the Colorado River Toad (Bufo alvarius). Emerging evidence suggests that vaporized 5-MeO-DMT may occasion mystical experiences of comparable intensity to those occasioned by more widely studied psychedelics such as psilocybin, but no empirical study has tested this hypothesis. Data was obtained from 20 individuals (Mage = [...]

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