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MDMA: all studies

Page 184 of 345: studies 1,831 to 1,840 of 3,446, newest first. Back to the MDMA overview

Research

MDMA toxicity: no evidence for a major influence of metabolic genotype at CYP2D6

Addiction Biology July 1, 1998 Alan O'Donohoe, Karen O’flynn, Kevin Shields et al. 29 citations

Abstract 3,4 Methylenedioxymethamphetamine (MDMA or ecstasy) has become a major drug of abuse over the last decade. It produces a mixture of systemic and neuropsychological effects. Animal studies show a range of short‐ and long‐term toxic effects, both systemically and neurochemically. In humans, toxicity and death due to the drug have been attributed to a variety of causes, with...

Small Changes in Ambient Temperature Cause Large Changes in 3,4-Methylenedioxymethamphetamine (MDMA)-Induced Serotonin Neurotoxicity and Core Body Temperature in the Rat

Journal of Neuroscience July 1, 1998 Jessica E. Malberg, Lewis S. Seiden 344 citations

The amphetamine derivative 3,4-methylenedioxymethamphetamine (MDMA) is a drug of abuse and has been shown to be neurotoxic to 5-HT terminals in many species. MDMA-engendered neurotoxicity has been shown to be affected by both ambient temperature and core body temperature. We now report that small (2°C) changes in ambient temperature produce changes in core temperature in MDMA-treated rats, but...

ChemInform Abstract: Ecstasy: 3,4‐Methylenedioxymethamphetamine (MDMA).

ChemInform June 30, 1998 Bruce H. Morimoto, Scott Lovell, Bart Kahr

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.

Role of hyperthermia in the protective action of clomethiazole against MDMA (‘ecstasy’)‐induced neurodegeneration, comparison with the novel NMDA channel blocker AR‐R15896AR

British Journal of Pharmacology June 1, 1998 María Isabel Colado, R Granados, Esther O’shea et al. 80 citations

The immediate effect of administration of 3,4‐methylenedioxymethamphetamine (MDMA or ‘ecstasy’) on rectal temperature and the effect of putative neuroprotective agents on this change has been examined in rats. The influence of the temperature changes on the long term MDMA‐induced neurodegeneration of cerebral 5‐hydroxytryptamine (5‐HT) nerve terminals was also examined. The novel low affinity...

In vivo detection of short- and long-term MDMA neurotoxicity?a positron emission tomography study in the living baboon brain

Synapse June 1, 1998 Ursula Scheffel, Zsolt Szabó, William B. Mathews et al. 146 citations

The present study evaluated short- and long-term effects of MDMA (3,4-methylenedioxymethamphetamine) in the baboon brain using PET and [11C](+)McN 5652, a potent 5-HT transporter ligand, as well as [11C]RTI-55, a cocaine derivative which labels both 5-HT and dopamine transporters. Following baseline PET scans with [11C](+)McN5652, [11C](-)McN5652 (the inactive enantiomer of the active...

Acute Effects of Dexfenfluramine (d‐FEN) and Methylenedioxymethamphetamine (MDMA) before and after Short‐Course, High‐Dose Treatment

Annals of the New York Academy of Sciences May 1, 1998 David L Frederick, Syed F. Ali, Michael Gillam et al. 32 citations

ABSTRACT: The acute behavioral effects of methylenedioxymethamphetamine (MDMA) and dexfenfluramine (d‐FEN) were assessed in six rhesus monkeys using performance in the National Center for Toxicological Research (NCTR) Operant Test Battery (OTB); three additional animals served as controls for neurochemical endpoints. The OTB consists of five food‐reinforced tasks designed to model aspects of...

Ecstasy: 3,4-Methylenedioxymethamphetamine (MDMA)

Acta Crystallographica Section C Crystal Structure Communications February 15, 1998 Bruce H. Morimoto, Scott Lovell, Bart Kahr 20 citations

The crystal structure of 3,4-methylenedioxymethamphetamine [systematic name: N-methyl-1-[3,4-(methylenedioxy) phenyl]-2-aminopropane] hydrochloride, C11H15NO2.HCl, also known as 'ecstasy' or MDMA, has been determined by X-ray diffraction.

MDMA-like stimulus effects of hallucinogens in male Fawn-Hooded rats.

Pharmacology, Biochemistry, and Behavior February 1998 M D Schechter

A two-lever, food-motivated, operant technique was employed to train the purportedly serotonergically dysfunctional Fawn-Hooded (FH) rat to discriminate 1.5 mg/kg MDMA. Once all 10 male subjects learned the MDMA-vehicle discrimination at criterion performance level, doses different than the training dose were used to generate a dose-response discrimination gradient. The ED50 value of MDMA was...

Serotonergic function after (±)3,4-methylene-dioxymethamphetarnine (‘Ecstasy’) in humans

International Clinical Psychopharmacology 1998 Gilberto Gerra, Amir Zaimovic, Giuliano Giucastro et al. 145 citations

(+/-)3,4-Methylene-dioxymethamphetamine (MDMA, or 'Ecstasy') effects on serotonin system function and behaviour in humans are unclear. Fifteen MDMA users, who did not have other drug dependencies or alcohol abuse, and had not used other drugs for prolonged periods, and 15 control individuals were included in a study to assess the biological and psychological changes after chronic use of MDMA....

Cognitive performance in recreational users of MDMA or 'ecstasy': evidence for memory deficits

Journal of Psychopharmacology 1998 A. C. Parrott, A. J. Lees, N. J. Garnham et al. 226 citations

Cognitive task performance was assessed in three groups of young people: 10 regular users of 3,4- methylenedioxymethamphetamine (MDMA) who had taken 'ecstasy' 10 times or more; 10 novice MDMA users who had taken 'ecstasy' one to nine times; and 10 control subjects who had never taken MDMA. A computerized battery of cognitive tasks (Cognitive Drug Research system) was undertaken on a day when...