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MDMA: all studies

Page 89 of 345: studies 881 to 890 of 3,446, newest first. Back to the MDMA overview

Research

MDMA, cannabis, and cocaine produce acute dissociative symptoms.

Psychiatry Research August 30, 2015 Dalena van Heugten-van der Kloet, Timo Giesbrecht, Janelle H. P. van Wel et al.

Some drugs of abuse may produce dissociative symptoms, but this aspect has been understudied. We explored the dissociative potential of three recreational drugs (3,4-methylenedioxymethamphetamine (MDMA), cannabis, and cocaine) during intoxication and compared their effects to literature reports of dissociative states in various samples. Two placebo-controlled studies were conducted. In Study 1...

MDMA-induced loss of parvalbumin interneurons within the dentate gyrus is mediated by 5HT2A and NMDA receptors.

European Journal of Pharmacology August 15, 2015 Stuart A. Collins, Gary A. Gudelsky, Bryan K. Yamamoto

MDMA is a widely abused psychostimulant which causes a rapid and robust release of the monoaminergic neurotransmitters dopamine and serotonin. Recently, it was shown that MDMA increases extracellular glutamate concentrations in the dorsal hippocampus, which is dependent on serotonin release and 5HT2A/2C receptor activation. The increased extracellular glutamate concentration coincides with a...

Posterior spinal artery aneurysm rupture after 'Ecstasy' abuse.

Journal of neurointerventional surgery July 2015 Jeremiah Johnson, Shnehal Patel, Efrat Saraf-Lavi et al.

Posterior spinal artery (PSA) aneurysms are a rare cause of subarachnoid hemorrhage (SAH). The commonly abused street drug 3,4-methylenedioxymethamphetamine (MDMA) or 'Ecstasy' has been linked to both systemic and neurological complications. A teenager presented with neck stiffness, headaches and nausea after ingesting 'Ecstasy'. A brain CT was negative for SAH but a CT angiogram suggested...

Oxytocin and MDMA ('Ecstasy') enhance social reward in rats.

Psychopharmacology July 2015 Linnet Ramos, Callum Hicks, Alex Caminer et al.

Oxytocin (OT), vasopressin (AVP) and 3,4 methylenedioxymethamphetamine (MDMA, 'Ecstasy') all increase social interaction in rats, perhaps by enhancing the rewarding value of social encounters. Here, we used the conditioned place preference (CPP) paradigm to assess the intrinsic rewarding effects of OT, AVP and MDMA, and whether these effects are enhanced by the presence of a conspecific, or a...

Chronic MDMA induces neurochemical changes in the hippocampus of adolescent and young adult rats: Down-regulation of apoptotic markers.

Neurotoxicology July 2015 Rubén García‐cabrerizo, M Julia García-Fuster

While hippocampus is a brain region particularly susceptible to the effects of MDMA, the cellular and molecular changes induced by MDMA are still to be fully elucidated, being the dosage regimen, the species and the developmental stage under study great variables. This study compared the effects of one and four days of MDMA administration following a binge paradigm (3×5 mg/kg, i.p., every 2 h)...

Greater sexual risk-taking in female and male recreational MDMA/ecstasy users compared with alcohol drinkers: a questionnaire study.

Human Psychopharmacology: Clinical and Experimental July 2015 Aimee L May, Andrew C. Parrott

Previous studies have shown increased sexual risk-taking in experienced MDMA/ecstasy users. The main objectives of this study were to compare levels of sexual risk-taking between a young student sample of predominantly heterosexual MDMA users and alcohol-drinker controls and investigate potential gender differences. Recreational drug use and sexual risk questionnaires were completed by 20 MDMA...

Venlafaxine as the ‘baby ecstasy’? Literature overview and analysis of web‐based misusers′ experiences

Human Psychopharmacology: Clinical and Experimental July 1, 2015 Giulia Francesconi, Laura Orsolini, Duccio Papanti et al. 22 citations

INTRODUCTION: Venlafaxine is one of the most frequently prescribed antidepressants worldwide, despite its toxicity risk in overdose. Furthermore, the molecule has been recently identified at the EU-wide level as one of the novel psychoactive substances. This paper aims at investigating the potential of misuse, taking into account both the existing literature and the analysis of the misusers'...

Effects of MDMA on socioemotional feelings, authenticity, and autobiographical disclosure in healthy volunteers in a controlled setting

bioRxiv (Cold Spring Harbor Laboratory) June 23, 2015 Matthew J. Baggott, Jeremy Coyle, Jennifer D. Siegrist et al. 21 citations preprint

Abstract The drug 3,4-methylenedioxymethamphetamine (MDMA, “ecstasy”, “molly”) is a widely used illicit drug and experimental adjunct to psychotherapy. MDMA has unusual, poorly understood socioemotional effects, including feelings of interpersonal closeness and sociability. To better understand these effects, we conducted a within-subjects double-blind placebo controlled study of the effects of...

DOI: 10.1101/021329 (opens in new tab) Full text (opens in new tab) MDMA Socioemotional selectivity theory Feeling Developmental psychology

MDMA for the treatment of mood disorder: all talk no substance?

Therapeutic Advances in Psychopharmacology June 1, 2015 Rachel Patel, Daniel Titheradge

Background: Unipolar depression is the third highest contributor to the global burden of disease, yet current pharmacotherapies typically take about 6 weeks to have an effect. A rapid-onset agent is an attractive prospect, not only to alleviate symptoms before first-line antidepressants display therapeutic action, but as a further treatment option in nonresponsive cases. It has been suggested...