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MDMA: all studies

Page 178 of 345: studies 1,771 to 1,780 of 3,446, newest first. Back to the MDMA overview

Research

An "accidental" acute psychosis with ecstasy use.

Journal of Psychoactive Drugs 2001 G Vaiva, V Boss, D Bailly et al.

Over the last 10 years, Europe has witnessed the development of the ecstasy phenomenon; this term is used to describe several products sharing more or less the same effects. The most widely used and hence the most well known is 3,4 MDMA, but MDA, MDEA, MBDB and even 2CB or nexus are available. The psychopathological consequences of MDMA use in man are relatively poorly understood. The case...

Cognitive performance and serotonergic function in users of ecstasy.

Psychopharmacology January 1, 2001 R J Verkes, H J Gijsman, M S Pieters et al.

(+/-) 3,4-Methylenedioxymethamphetamine (MDMA or "ecstasy") has been shown to cause long term damage to serotonergic cerebral neurons in animals. The neurotoxic effects in humans are less clear and little is known about the functional consequences, although some studies suggest memory impairment. Given the widespread use of MDMA, our lack of knowledge raises concerns. We investigated, in...

Biochemical effects of the monoamine neurotoxins DSP-4 and MDMA in specific brain regions of MAO-B-deficient mice

Synapse 2001 Francesco Fornai, Filippo Sean Giorgi, Marco Gesi et al. 54 citations

Previous studies reported that drugs acting as monoamine oxidase (MAO)-B inhibitors prevented biochemical effects induced by the neurotoxins N-(2-chloroethyl)-N-ethyl-2-bromobenzylamine (DSP-4) and 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy"). In this study, we administered DSP-4 (50 mg/kg) or MDMA (50 mg/kg x 2, 2 h apart) to MAO-B deficient mice. Monoamine content in various brain...

Ascorbic acid prevents 3,4-methylenedioxymethamphetamine (MDMA)-induced hydroxyl radical formation and the behavioral and neurochemical consequences of the depletion of brain 5-HT

Synapse 2001 Mahalakshmi Shankaran, Bryan K. Yamamoto, Gary A. Gudelsky 97 citations

MDMA-induced 5-HT neurotoxicity has been proposed to involve oxidative stress due to increased formation of hydroxyl radicals. Recently, MDMA-induced 5-HT neurotoxicity has been shown to be accompanied by a suppression of behavioral and neurochemical responses to a subsequent injection of MDMA. The intent of the present study was to examine whether suppression of the MDMA-induced formation of...

Reinforcing Effects of MDMA (‘Ecstasy’) in Drug-Naive and Cocaine-Trained Rats

Pharmacology 2001 Elisabeth Ratzenboeck, Alois Saria, Norbert Kriechbaum et al. 97 citations

3,4-Methylenedioxymethamphetamine (MDMA; ‘ecstasy’) is one of the most prevalent illegal drugs of abuse among European adolescents, a population not generally experienced with respect to ‘hard’ drugs such as cocaine. We, therefore, determined the reinforcing effect of intravenously self-administered MDMA in a fixed ratio 1 time-out 150 s schedule of reinforcement in rats that were truly drug...

Cardiovascular Effects of 3,4-Methylenedioxymethamphetamine: A Double-Blind, Placebo-Controlled Trial

Annals of Internal Medicine December 19, 2000 Steven J. Lester, Matthew J. Baggott, Susette Welm et al. 140 citations

BACKGROUND: The psychoactive stimulant 3, 4-methylenedioxymethamphetamine (MDMA), also known as "ecstasy," is widely used in nonmedical settings. Little is known about its cardiovascular effects. OBJECTIVE: To evaluate the acute cardiovascular effects of MDMA by using transthoracic two-dimensional and Doppler echocardiography. DESIGN: Four-session, ascending-dose, double-blind,...

Enantioselektive Gewinnung und Kristallstruktur des Ecstasy-Analogons N-Ethyl-3,4-methylendioxyamphetamin-HCl (MDE) und seiner beiden Hauptmetaboliten MDA und HME / Enantioselective Production and Crystal Structure of the Ecstasy Analogue N-Ethyl-3,4- methylenedioxyamphetamine-HCl (MDE) and its Major Metabolites MDA and HME

Zeitschrift für Naturforschung B December 1, 2000 Jochen Büchler, Cacilia Maichle-Mössmer, Karl‐artur Kovar

A synthetic route to the production of the pure enantiomers of the ecstasy-analogue N-Ethyl- 3,4-methylenedioxyamphetamine (MDE) and its major metabolites MDA and HME is presented. The crystal and molecular structure of these compounds has been determined by X-ray crystallography. The hydrogen bonding in the crystal lattice is examined and significant differences were found by comparing (R)-...

[History, effects and mechanisms of action of ecstasy (3,4-methylenedioxyamphetamine): review of the literature].

Revista panamericana de salud publica = Pan American journal of public health December 2000 S P De Almeida, M T Silva

This review focuses on 3,4-methylenedioxymethamphetamine, an illegal drug known as "ecstasy." Ecstasy was introduced in Brazil in 1994. Data are lacking on the epidemiology and usage pattern of the drug in Brazil. However, there is evidence that until now the use of ecstasy has been limited to middle-class or upper-middle-class youth, so that most people, including health care professionals,...

Methylenedioxymethamphetamine (MDMA, “Ecstasy”)

Pediatric Emergency Care October 1, 2000 Michael H Shannon 51 citations

Ecstasy (MDMA) is an amphetamine derivative of growing popularity. The drug produces a range of toxicities when taken either in standard doses or overdose. In overdose it has major toxicity, producing several different life-threatening manifestations. Hepatotoxicity and hyponatremia are common but poorly understood consequences of MDMA overdose. The drug can produce long-term, if not permanent,...

Primeiro perfil do usuário de "êxtase" (MDMA) em São Paulo

September 26, 2000 Stella Pereira De Almeida 1 citation

O presente estudo teve como objetivo identificar os padrões de uso de "êxtase"na cidade de São Paulo.Os usuários foram recrutados através da técnica de amostragem snowball, também utilizada para o recrutamento do grupo controle, composto de indivíduos com estilo de vida semelhante aos primeiros mas que nunca haviam experimentado "êxtase"(não usuários).Usuários (52) e não usuários (52) foram...