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MDMA: all studies

Page 150 of 345: studies 1,491 to 1,500 of 3,446, newest first. Back to the MDMA overview

Research

Patterns of ecstasy-associated hyponatremia in California.

Annals of emergency medicine February 2007 Jonathan Rosenson, Craig G. Smollin, Karl A Sporer et al.

We describe the clinical characteristics of patients with ecstasy- (3,4-methylenedioxymethamphetamine [MDMA]) associated hyponatremia (serum sodium level <130 mmol/L) reported to the California Poison Control System during a 5-year period and determine whether a sex difference exists among patients with ecstasy-associated hyponatremia and hyponatremia-associated adverse outcomes. We performed a...

Rewarding effects of 3,4-methylenedioxymethamphetamine ("Ecstasy") in dominant and subordinate OF-1 mice in the place preference conditioning paradigm.

Progress in Neuro-Psychopharmacology and Biological Psychiatry January 30, 2007 G Rodriguez-Alarcón, J J Canales, Alexandre Salvador

We tested the ability of 3,4-methylenedioxymethamphetamine (MDMA) to induce conditioned place preference (CPP) in dominant and subordinate OF-1 mice subjected to cohabitation and repeated sessions of agonistic confrontation, as well as in non-confronted mice. We selected doses of MDMA (2, 6, 10 mg/kg) previously reported to induce CPP in mice and we measured expression of c-Fos evoked by the...

Differential effects of intravenous R,S‐(±)‐3,4‐methylenedioxymethamphetamine (MDMA, Ecstasy) and its S(+)‐ and R(−)‐enantiomers on dopamine transmission and extracellular signal regulated kinase phosphorylation (pERK) in the rat nucleus accumbens shell and core

Journal of Neurochemistry January 22, 2007 Elio Acquas, Augusta Pisanu, Saturnino Spiga et al. 52 citations

Abstract R,S(±)‐3,4‐methylenedioxymethamphetamine (R,S(±)‐MDMA, ‘Ecstasy’) is known to stimulate dopamine (DA) transmission in the nucleus accumbens (NAc). In order to investigate the post‐synaptic correlates of pre‐synaptic changes in DA transmission and their relationship with MDMA enantiomers, we studied the effects of R,S(±)‐MDMA, S(+)‐MDMA, and R(−)‐MDMA on extracellular DA and...

Repeated weekly exposure to MDMA, methamphetamine or their combination: long-term behavioural and neurochemical effects in rats.

Drug and Alcohol Dependence January 12, 2007 Kelly J. Clemens, Jennifer L. Cornish, Glenn E. Hunt et al.

In recent work we have documented lasting adverse neurochemical and behavioural effects in rats given short-term 'binge' dosing with methylenedioxymethamphetamine (MDMA, Ecstasy), methamphetamine (METH) or their combination. Here we investigated whether similar effects persist in rats given 16 weekly injections followed by a 10 week period of abstinence. Female rats received MDMA (8 mg/kg,...

Are there sex differences associated with the effects of ecstasy/3,4-methylenedioxymethamphetamine (MDMA)?

Neuroscience and biobehavioral reviews 2007 Kelly Allott, Jennifer Redman

Sex has been identified as an important factor in moderating the effects of several drugs of abuse. Given the increasing popularity of ecstasy (3,4-methylenedioxymethamphetamine [MDMA]) use, it is important for researchers and clinicians to understand the factors that may influence its pharmacological actions to improve education, harm reduction and treatment efforts. This review focuses on...

Searching the Internet for drug-related web sites: analysis of online available information on ecstasy (MDMA).

American Journal on Addictions 2007 Paolo Deluca, Fabrizio Schifano

Although the Internet is a growing source of information on MDMA/ecstasy, no studies so far have investigated the level and quality of ecstasy information available to the typical Web user. In the present study, 280 Web sites were identified and analyzed; 50.4% had an anti-drug approach, 16.2% a harm reduction approach, and 24.8% a pro-drug approach. MDMA pro-drug Web sites appeared...

Sex differences in the neurochemical and functional effects of MDMA in Sprague-Dawley rats.

Psychopharmacology January 2007 Q David Walker, Christina N Williams, Rakesh P Jotwani et al.

3,4-Methylenedioxymethamphetamine (MDMA; "Ecstasy") use has been associated with acute toxicities and persistent depletion of the neurotransmitter serotonin (5-HT). This study investigates whether sex differences in the acute and long-term effects of MDMA exist. Male and female rats received saline or 15 mg/kg MDMA, ip, bid for 4 days. Temperature was monitored on days 1 and 4. Locomotor...

The effects of fluoxetine on the subjective and physiological effects of 3,4-methylenedioxymethamphetamine (MDMA) in humans.

Psychopharmacology January 2007 Manuel E. Tancer, Chris‐ellyn Johanson

The purpose of this study was to investigate the role of serotonin (5-HT) in the effects of oral 3,4-methylenedioxymethamphetamine (MDMA) in humans. The subjective and physiological effects of 1.5 mg/kg MDMA were evaluated after 20 mg fluoxetine in eight recreational MDMA users in a double-blind, placebo-controlled study. During phase 1, participants were maintained on placebo for at least 5...

Reinforcement schedule effects in rats trained to discriminate 3,4-methylenedioxymethamphetamine (MDMA) or cocaine.

Psychopharmacology January 2007 Daniel Kueh, Lisa E Baker

Relatively few studies have compared the discriminative stimulus effects of 3,4-methylenedioxymethamphetamine (MDMA) and cocaine, and findings from different laboratories are somewhat inconsistent. One possible reason for discrepant results may be the use of different reinforcement schedules during discrimination training. The present study compared fixed ratio (FR) 20 and variable interval...

Neuroimaging research in human MDMA users: a review.

Psychopharmacology January 2007 Ronald L Cowan

Determining whether, under what circumstances, and to what extent 3,4-methylenedioxymethamphetamine (MDMA) exposure produces chronic changes in human brain function is a critical public health issue. MDMA is a widely used recreational drug commonly sold as "Ecstasy". Because findings from the animal literature have indicated that specific dosage regimens of MDMA can produce long-lasting...