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MDMA: all studies

Page 162 of 345: studies 1,611 to 1,620 of 3,446, newest first. Back to the MDMA overview

Research

Repeated MDMA (“Ecstasy”) exposure in adolescent male rats alters temperature regulation, spontaneous motor activity, attention, and serotonin transporter binding

Developmental Psychobiology 2005 Brian J. Piper, Joseph B. Fraiman, Jerrold S. Meyer 71 citations

Previous research in our laboratory found that repeated exposure of adolescent rats to 3,4-methylenedioxymethamphetamine (MDMA) impaired working memory and reduced anxiety. The present experiment extended these findings by investigating the physiological, behavioral, and neurotoxic effects of a modified MDMA treatment regimen. Male Sprague-Dawley rats received 5 mg/kg of MDMA hourly for a...

DOI: 10.1002/dev.20085 (opens in new tab) MDMA Ecstasy Habituation Serotonin transporter +3

MDMA and Sexual Behavior: Ecstasy Users' Perceptions About Sexuality and Sexual Risk

Substance Use & Misuse 2005 Karen Mcelrath 102 citations

This study examines the relationship between MDMA (Ecstasy), sexual behavior, and sexual risk taking. The sample consisted of 98 current and former users of MDMA. Several strategies were utilized to recruit respondents and data were collected through in-depth interviews during 1997 and 1998. The majority of respondents had used MDMA during the 6-month period prior to the interview and a large...

“Partying” Hard: Party Style, Motives for and Effects of MDMA Use at Rave Parties

Substance Use & Misuse 2005 Tom F. M. Ter Bogt, Rutger C. M. E. Engels 144 citations

This study examines motives for and consequences of MDMA use at different types of dance parties in the Netherlands (2001 and 2002). Participants were 490 visitors of three different types of rave parties, "club/mellow," "trance/mainstream," and "hardcore" (34% female, mean age 22.3 years, 76.5% MDMA users). Partygoers are motivated primarily by the energetic and euphoric effects they expect...

Chronic tolerance to recreational MDMA (3,4-methylenedioxymethamphetamine) or Ecstasy

Journal of Psychopharmacology 2005 A. C. Parrott 241 citations

This review of chronic tolerance to MDMA (3,4-methylenedioxymetamphetamine) covers the empirical data on dosage escalation, reduced subjective efficacy and bingeing in recreational Ecstasy users. Novice users generally take a single Ecstasy tablet, regular users typically take 2-3 tablets, whereas the most experienced users may take 10-25 tablets in a single session. Reduced subjective efficacy...

Functional MRI study of working memory in MDMA users.

Psychopharmacology December 2004 F Gerard Moeller, Joel L. Steinberg, Donald M Dougherty et al.

Methylene-dioxymethamphetamine (MDMA) is known to cause degeneration of serotonin nerve terminals after acute doses in animals. Similarly, behavioral studies in human MDMA users regularly find abnormalities in memory, mood, and impulse control. However, studies of brain function using brain imaging in MDMA users have been less consistent. The purpose of this study was to determine, using...

Serotonin–GABA interactions modulate MDMA‐induced mesolimbic dopamine release

Journal of Neurochemistry October 27, 2004 Michael G. Bankson, Bryan K. Yamamoto 84 citations

Abstract 3,4,‐Methylenedioxymethamphetamine (MDMA; ‘ecstasy’) acts at monoamine nerve terminals to alter the release and re‐uptake of dopamine and 5‐HT. The present study used microdialysis in awake rats to measure MDMA‐induced changes in extracellular GABA in the ventral tegmental area (VTA), simultaneous with measures of extracellular dopamine (DA) in the nucleus accumbens (NAC) shell....

[Ecstasy-induced toxic hepatitis].

Presse medicale (Paris, France : 1983) October 23, 2004 Xavier Aknine

The use of ecstasy (MDMA) has developed in the young since the eighties, particularly in festive settings. Among the severe adverse events induced by this synthetic drug, the hepatotoxicity related to MDMA and to its physiopathological mechanism warrant attention. A 21 year-old man consulted for anaemia that had persisted over the past months with abnormality in hepatic profile. The...

Impulsivity, risk taking and recreational 'ecstasy' (MDMA) use.

Drug and Alcohol Dependence October 5, 2004 G K L Butler, A M J Montgomery

The present study investigated characteristics of recreational drug users, especially 'ecstasy' (MDMA) users, in 254 undergraduates. All participants completed a drug history questionnaire (DHQ), the impulsiveness venturesomeness and empathy questionnaire, a novel risk-taking task (Bets16), and 59 also completed the tri-dimensional personality questionnaire (TPQ). DHQ responses allocated...

A review of the mechanisms involved in the acute MDMA (ecstasy)-induced hyperthermic response.

European Journal of Pharmacology October 1, 2004 Alfred Richard Green, Esther O'Shea, María Isabel Colado

The predominant severe acute adverse effect following ingestion of 3,4-methylenedioxymethamphetamine (MDMA, ecstasy) by recreational users is hyperthermia which can induce other associated clinical problems and occasionally death. There is no pharmacologically specific treatment. MDMA also induces dose-dependent hyperthermia in experimental animals. This review examines the consequences of MDMA...

Thioether metabolites of 3,4-methylenedioxyamphetamine and 3,4-methylenedioxymethamphetamine inhibit human serotonin transporter (hSERT) function and simultaneously stimulate dopamine uptake into hSERT-expressing SK-N-MC cells.

Journal of Pharmacology and Experimental Therapeutics October 2004 Douglas C. Jones, Serrine S. Lau, Terrence J. Monks

3,4-Methylenedioxyamphetamine (MDA) and 3,4-methyl-enedioxymethamphetamine (MDMA, ecstasy) are widely abused amphetamine derivatives that target the serotonin system. The serotonergic neurotoxicity of MDA and MDMA seems dependent on their systemic metabolism. 5-(Glutathion-S-yl)-alpha-methyldopamine [5-(GSyl)-alpha-MeDA] and 2,5-bis(glutathion-S-yl)-alpha-methyldopamine...