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MDMA: all studies

Page 88 of 345: studies 871 to 880 of 3,446, newest first. Back to the MDMA overview

Research

A Case of 3,4-Dimethoxyamphetamine (3,4-DMA) and 3,4-Methylenedioxymethamphetamine (MDMA) Toxicity with Possible Metabolic Interaction.

Journal of Psychoactive Drugs 2016 Michael A Darracq, Stephen L Thornton, Alicia B Minns et al. 2 citations

We present a case of "ecstasy" ingestion revealing 3,4-methylenedioxymethamphetamine (MDMA) and 3,4-dimethoxyamphetamine (3,4-DMA) and absence of cytochrome P450 (CYP)-2D6 MDMA metabolites. A 19-year-old presented following a seizure. Initial vital signs were normal. Laboratories were normal with the exception of sodium 127 mEq/L and urine drugs of abuse screen positive for amphetamines. Twelve...

DOI: 10.1080/02791072.2016.1225324 (opens in new tab) Full text (opens in new tab) 3,4 dimethoxyamphetamine dma 3,4-methylenedioxymethamphetamine Pharmacokinetics

Neuroimaging in moderate MDMA use: A systematic review

Neuroscience & Biobehavioral Reviews December 30, 2015 Felix Mueller, Claudia Lenz, Markus Steiner et al. 68 citations

MDMA ("ecstasy") is widely used as a recreational drug, although there has been some debate about its neurotoxic effects in humans. However, most studies have investigated subjects with heavy use patterns, and the effects of transient MDMA use are unclear. In this review, we therefore focus on subjects with moderate use patterns, in order to assess the evidence for harmful effects. We searched...

Long-term effects of repeated social stress on the conditioned place preference induced by MDMA in mice.

Progress in Neuro-Psychopharmacology and Biological Psychiatry December 3, 2015 María P García-Pardo, M C Blanco-Gandía, M Valiente-Lluch et al.

Previous studies have demonstrated that social defeat stress increases the rewarding effects of psychostimulant drugs such as cocaine and amphetamine. In the present study we evaluated the long-term effects of repeated social defeat (RSD) on the rewarding effects of ±3,4-methylenedioxymethamphetamine (MDMA) hydrochloride in the conditioned place preference (CPP) paradigm. Adolescent and young...

Chiral Plasma Pharmacokinetics of 3,4-Methylenedioxymethamphetamine and its Phase I and II Metabolites following Controlled Administration to Humans.

Drug metabolism and disposition: the biological fate of chemicals December 2015 Andrea E. Steuer, Corina Schmidhauser, Yasmin Schmid et al.

Generally, pharmacokinetic studies on 3,4-methylenedioxymethamphetamine (MDMA) in blood have been performed after conjugate cleavage, without taking into account that phase II metabolites represent distinct chemical entities with their own effects and stereoselective pharmacokinetics. The aim of the present study was to stereoselectively investigate the pharmacokinetics of intact glucuronide...

Expression of bax and bcl2 Genes in MDMA-induced Hepatotoxicity on Rat Liver Using Quantitative Real-Time PCR Method through Triggering Programmed Cell Death.

Iranian Red Crescent medical journal November 26, 2015 Mitra Behroozaghdam, Mehrdad Hashemi, Gholamreza Javadi et al.

Background: 3-4methylenedioxymethamphetamine (MDMA) is a synthetic and psychoactive drug, which is known popularly as Ecstasy and has toxic effects on human organs. Objectives: Considering the potential toxic interaction, this study was performed to quantify the expression of bax and bcl2 genes in MDMA-induced hepatotoxicity on rat liver. Subsequently, we evaluated pentoxifylline as a possible...

DOI: 10.5812/ircmj.24609 (opens in new tab) Full text (opens in new tab) MDMA Anti-apoptotic gene Pentoxifylline Pro-apoptotic gene +1

Yohimbine reinstates extinguished 3,4-methylenedioxymethamphetamine (MDMA; ecstasy) seeking in rats with prior exposure to chronic yohimbine.

Behavioural Brain Research November 1, 2015 Kevin T. Ball, Hanna Jarsocrak, Johanna Hyacinthe et al.

Although exposure to acute stress has been shown to reinstate extinguished responding for a wide variety of drugs, no studies have investigated stress-induced reinstatement in animals with a history of 3,4-methylenedioxymethamphetamine (MDMA; ecstasy) self-administration. Thus, rats were trained to press a lever for MDMA (0.50 mg/kg/infusion) in daily sessions, and lever pressing was...

Distribution of temperature changes and neurovascular coupling in rat brain following 3,4‐methylenedioxymethamphetamine (MDMA, “ecstasy”) exposure

NMR in Biomedicine October 1, 2015 Daniel Coman, Basavaraju G. Sanganahalli, Lihong Jiang et al.

(+/−)3,4‐methylenedioxymethamphetamine (MDMA, “ecstasy”) is an abused psychostimulant that produces strong monoaminergic stimulation and whole‐body hyperthermia. MDMA‐induced thermogenesis involves activation of uncoupling proteins (UCPs), primarily a type specific to skeletal muscle (UCP‐3) and absent from the brain, although other UCP types are expressed in the brain (e.g. thalamus) and might...

Human pharmacology of 3,4-methylenedioxymethamphetamine (MDMA, ecstasy) after repeated doses taken 4 h apart Human pharmacology of MDMA after repeated doses taken 4 h apart.

European Neuropsychopharmacology October 2015 Magí Farré, Angels Tomillero, Clara Pérez‐mañá et al.

3,4-Methylenedioxymethamphetamine (MDMA, ecstasy) is a popular psychostimulant, frequently associated with multiple administrations over a short period of time. Repeated administration of MDMA in experimental settings induces tolerance and metabolic inhibition. The aim is to determine the acute pharmacological effects and pharmacokinetics resulting from two consecutive 100mg doses of MDMA...

The Prosocial Effects of 3,4-methylenedioxymethamphetamine (MDMA): Controlled Studies in Humans and Laboratory Animals

Neuroscience & Biobehavioral Reviews September 25, 2015 Philip Kamilar-Britt, G. Bedi 165 citations

Users of ±3,4-Methylenedioxymethamphetamine (MDMA; ‘ecstasy’) report prosocial effects such as sociability and empathy. Supporting these apparently unique social effects, data from controlled laboratory studies indicate that MDMA alters social feelings, information processing, and behavior in humans, and social behavior in rodents. Here, we review this growing body of evidence. In rodents, MDMA...

3,4-Methylenedioxymethamphetamine facilitates fear extinction learning

Translational Psychiatry September 15, 2015 Matthew B Young, Raül Andero, Kerry J. Ressler et al. 137 citations

Abstract Acutely administered 3,4-methylenedioxymethamphetamine (MDMA, ‘ecstasy’) has been proposed to have long-term positive effects on post-traumatic stress disorder (PTSD) symptoms when combined with psychotherapy. No preclinical data support a mechanistic basis for these claims. Given the persistent nature of psychotherapeutic gains facilitated by MDMA, we hypothesized that MDMA improves...