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MDMA: all studies

Page 154 of 346: studies 1,531 to 1,540 of 3,454, newest first. Back to the MDMA overview

Research

MDMA‐induced neurotoxicity: long‐term effects on 5‐HT biosynthesis and the influence of ambient temperature

British Journal of Pharmacology June 12, 2006 Esther O’shea, Laura Orío, Isabel Escobedo et al. 57 citations

3,4‐Methylenedioxymethamphetamine (MDMA or ‘ecstasy’) decreases the 5‐HT concentration, [ 3 H]‐paroxetine binding and tryptophan hydroxylase activity in rat forebrain, which has been interpreted as indicating 5‐HT neurodegeneration. This has been questioned, particularly the 5‐HT loss, as MDMA can also inhibit tryptophan hydroxylase. We have now evaluated the validity of these parameters as a...

Acute toxic effects of 'Ecstasy' (MDMA) and related compounds: overview of pathophysiology and clinical management.

British Journal of Anaesthesia June 2006 A P Hall, J A Henry

Since the late 1980s 'Ecstasy' (3,4-methylenedioxymethamphetamine, MDMA) has become established as a popular recreational drug in western Europe. The UK National Criminal Intelligence Service estimates that 0.5-2 million tablets are consumed weekly in Britain. It has been reported that 4.5% of young adults (15-34 yr) in the UK have used MDMA in the previous 12 months. Clinically important toxic...

Prevalence of Use Study for Amphetamine (AMP), Methamphetamine (MAMP), 3,4-Methylenedioxyamphetamine (MDA) 3,4-Methylenedioxymethamphetamine (MDMA), and 3,4-Methylenedioxyethylamphetamine (MDEA) in Military Entrance Processing Stations (MEPS) Specimens

Journal of Analytical Toxicology June 1, 2006 K. L. Klette, A. R. Kettle, M. H. Jamerson 13 citations

The Roche Abuscreen Onlinetrade mark Amphetamine immunoassay (IA), modified to include sodium periodate, and the Microgenics DRI Ecstasy IA were used to determine the prevalence of amphetamine (AMP), methamphetamine (MAMP), 3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxymethamphetamine (MDMA), and 3,4-methylenedioxyethylamphetamine (MDEA) in urine specimens from applicants seeking to...

Implications of mechanism-based inhibition of CYP2D6 for the pharmacokinetics and toxicity of MDMA

Journal of Psychopharmacology May 20, 2006 Jiansong Yang, Masoud Jamei, Amir Heydari et al. 89 citations

The aim of this study was to model the in vivo kinetic consequences of mechanism-based inhibition (MBI) of CYP2D6 by 3,4 methylenedioxymethamphetamine (MDMA, ecstasy). A model with physiologically-based components of drug metabolism was developed, taking account of change in the hepatic content of active CYP2D6 due to MBI by MDMA. Based on the in vitro information, plasma concentration time...

Recreational ecstasy use and depression.

Journal of Psychopharmacology May 2006 Casey R. Guillot, David Greenway

Research in laboratory animals has shown that 3,4-methylenedioxymethamphetamine (MDMA or ecstasy) destroys serotonergic axons in the brain at certain doses. Serotonin is known to take part in the regulation of mood in humans. Many researchers have hypothesized that if recreational ecstasy use destroys serotonergic axons, then a corresponding decline in the mood of ecstasy users should be seen....

Users' perceptions of the risks and effects of taking ecstasy (MDMA): a questionnaire study.

Journal of Psychopharmacology May 2006 Philip N. Murphy, Michelle Wareing, John E. Fisk

This self-report questionnaire study examined ecstasy users' perceptions of the risks associated with their use of ecstasy, their precautions against such risks, and its perceived effects on their lives. Gender differences in these areas were also explored. The sample comprised 328 ecstasy users (139 female, 187 male, one transsexual) with a mean age of 22.5 years (SD = 4.9 years)....

Recreational ecstasy use and the neurotoxic potential of MDMA: current status of the controversy and methodological issues

Drug and Alcohol Review May 1, 2006 Michael Lyvers 41 citations

The controversy over possible MDMA-induced serotonergic neurotoxicity in human recreational ecstasy users is examined critically in light of recent research findings. Although the designs of such studies have improved considerably since the 1990s, the evidence to date remains equivocal for a number of reasons, including (1) inconsistent findings on the existence and reversibility of persistent...

MDMA and fenfluramine reduce L‐DOPA‐induced dyskinesia via indirect 5‐HT1A receptor stimulation

European Journal of Neuroscience May 1, 2006 Christopher Bishop, Jennifer L. Taylor, Donald M. Kuhn et al. 63 citations

Abstract Chronic l ‐3,4‐dihydroxyphenylalanine (L‐DOPA) pharmacotherapy in Parkinson's disease is often accompanied by the development of abnormal and excessive movements known as dyskinesia. Clinical and experimental studies indicate that indirect serotonin agonists can suppress dyskinesia without affecting the efficacy of L‐DOPA. While the mechanism by which these effects occur is not clear,...

Patterns of use and harm reduction practices of ecstasy users in Australia.

Drug and Alcohol Dependence April 28, 2006 Kelly Allott, Jennifer Redman

Harm reduction refers to the use of strategies to prevent or reduce harmful consequences associated with illicit drug use. There is a paucity of research concerning the harm reduction practices employed by ecstasy users. This study aimed to explore the prevalence, nature and factors associated with harm reduction practices employed by ecstasy users in Australia, with a specific focus on the...

Problematic versus non-problematic ecstasy/MDMA use: the influence of drug usage patterns and pre-existing psychiatric factors

Journal of Psychopharmacology March 30, 2006 Kirstie Soar, John Turner, A. C. Parrott 65 citations

Recreational ecstasy (3,4-methylenedioxymethamphetamine; MDMA) use has been increasingly associated with a number of psychiatric symptoms and psychological problems. However, previous studies assessing possible psychopathological effects have not identified whether users consider their ecstasy use ‘problematic’ or not. In addition, research has generally failed to address the potential role of...