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MDMA: all studies

Page 99 of 346: studies 981 to 990 of 3,454, newest first. Back to the MDMA overview

Research

The effect of acutely administered MDMA on subjective and BOLD-fMRI responses to favourite and worst autobiographical memories

The International Journal of Neuropsychopharmacology December 17, 2013 Robin Carhart-Harris, Matthew B. Wall, David Erritzøe et al. 110 citations

3,4-methylenedioxymethamphetamine (MDMA) is a potent monoamine-releaser that is widely used as a recreational drug. Preliminary work has supported the potential of MDMA in psychotherapy for post-traumatic stress disorder (PTSD). The neurobiological mechanisms underlying its putative efficacy are, however, poorly understood. Psychotherapy for PTSD usually requires that patients revisit traumatic...

Protective effects of N-acetylcysteine on 3, 4-methylenedioxymethamphetamine-induced neurotoxicity in male Sprague-Dawley rats.

Metabolic Brain Disease December 2013 Sara Soleimani Asl, Kazem Mousavizadeh, Bagher Pourheydar et al.

Exposure to 3, 4-methylenedioxymethamphetamine (MDMA) leads to spatial memory impairment and hippocampal cell death. In the present study we have examined the protective effects of N-acetyl-L-cysteine (NAC) on MDMA-induced neurotoxicity. A total of 56 male Sprague Dawley rats (200-250 g) received twice daily intraperitoneal (IP) injections of 5, 10 or 20 mg/kg MDMA plus NAC (100 mg/kg). Rectal...

Electrophysiological evidence of atypical processing underlying mental set shifting in ecstasy polydrug and polydrug users.

Experimental and Clinical Psychopharmacology December 2013 Carl A Roberts, Stephen H Fairclough, Francis P McGlone et al.

Executive functioning deficits are reported in ecstasy users. However research into mental set switching has been equivocal, with behavioral studies suggesting the function is preserved. The current study sought to address the issue of switching deficits in ecstasy users by combining behavioral performance with electrophysiological correlates (electroencephalography; EEG). Twenty ecstasy...

Sex‐dependent long‐term effects of adolescent exposure to THC and/or MDMA on neuroinflammation and serotoninergic and cannabinoid systems in rats

British Journal of Pharmacology November 15, 2013 Ana Belén López-rodríguez, Alvaro Llorente‐berzal, Luis Miguel García‐segura et al. 50 citations

Background and Purpose Many young people consume ecstasy as a recreational drug and often in combination with cannabis. In this study, we aimed to mimic human consumption patterns and investigated, in male and female animals, the long‐term effects of Δ 9 ‐tetrahydrocannabinol ( THC ) and 3,4‐methylenedioxymethamphetamine ( MDMA ) on diverse neuroinflammation and neurotoxic markers. Experimental...

Sex-Dependent Psychoneuroendocrine Effects of THC and MDMA in an Animal Model of Adolescent Drug Consumption

PLoS One November 4, 2013 Alvaro Llorente‐berzal, Emma Puighermanal, Aurelijus Burokas et al. 43 citations

Ecstasy is a drug that is usually consumed by young people at the weekends and frequently, in combination with cannabis. In the present study we have investigated the long-term effects of administering increasing doses of delta-9-tetrahydrocannabinol [THC; 2.5, 5, 10 mg/kg; i.p.] from postnatal day (pnd) 28 to 45, alone and/or in conjunction with 3,4-methylenedioxymethamphetamine [MDMA; two...

3,4-methylenedioxymethamphetamine (MDMA): current perspectives

Substance Abuse and Rehabilitation November 1, 2013 Jerry Meyer 93 citations

Ecstasy is a widely used recreational drug that usually consists primarily of 3,4-methylenedioxymethamphetamine (MDMA). Most ecstasy users consume other substances as well, which complicates the interpretation of research in this field. The positively rated effects of MDMA consumption include euphoria, arousal, enhanced mood, increased sociability, and heightened perceptions; some common...

Independent of 5-HT1A receptors, neurons in the paraventricular hypothalamus mediate ACTH responses from MDMA.

Neuroscience Letters October 25, 2013 Dmitry V Zaretsky, Maria V Zaretskaia, Joseph A Dimicco et al.

Acute and chronic complications from the substituted amphetamine 3,4-methylenedioxymethamphetamine (MDMA) are linked to activation of the hypothalamic-pituitary-adrenal (HPA) axis. How MDMA activates the HPA axis is not known. HPA responses to stress are known to be mediated through the paraventricular (PVH) hypothalamus and to involve serotonin-1a (5-HT1A) receptors. We sought to determine if...

Nonlinear Pharmacokinetics of (±)3,4-Methylenedioxymethamphetamine (MDMA) and Its Pharmacodynamic Consequences in the Rat

Drug Metabolism and Disposition October 19, 2013 Marta Concheiro, Michael H. Baumann, Karl B. Scheidweiler et al. 32 citations

3,4-Methylenedioxymethamphetamine (MDMA) is a widely abused illicit drug that can cause severe and even fatal adverse effects. However, interest remains for its possible clinical applications in posttraumatic stress disorder and anxiety treatment. Preclinical studies to determine MDMA's safety are needed. We evaluated MDMA's pharmacokinetics and metabolism in male rats receiving 2.5, 5, and 10...

Effects of 3,4‐methylenedioxymethamphetamine (MDMA) and its main metabolites on cardiovascular function in conscious rats

British Journal of Pharmacology October 12, 2013 Charles W. Schindler, Eric B. Thorndike, Bruce E. Blough et al. 35 citations

Background and Purpose The cardiovascular effects produced by 3,4‐methylenedioxymethamphetamine ( MDMA ; ‘ E cstasy’) contribute to its acute toxicity, but the potential role of its metabolites in these cardiovascular effects is not known. Here we examined the effects of MDMA metabolites on cardiovascular function in rats. Experimental Approach Radiotelemetry was employed to evaluate the...

DOI: 10.1111/bph.12423 (opens in new tab) MDMA Metabolite Pharmacology Antagonist +5

Pharmacokinetic and pharmacodynamic effects of methylphenidate and MDMA administered alone or in combination

The International Journal of Neuropsychopharmacology October 8, 2013 Cédric M. Hysek, Linda D. Simmler, Nathalie Schillinger et al. 125 citations

Methylphenidate and 3,4-methylenedioxymethamphetamine (MDMA, 'ecstasy') are widely misused psychoactive drugs. Methylphenidate increases brain dopamine and norepinephrine levels by blocking the presynaptic reuptake transporters. MDMA releases serotonin, dopamine and norepinephrine through the same transporters. Pharmacodynamic interactions of methylphenidate and MDMA are likely. This study...