نتایج جستجو برای: ecstasy mdma

تعداد نتایج: 2964  

Journal: :Neuroscience & Biobehavioral Reviews 2016
Carl. Alexander Roberts Andrew Jones Catharine Montgomery

We conducted a meta-analysis on the available data from studies investigating SERTs in ecstasy users and polydrug using controls. From 7 studies we compared data from 157 ecstasy users and 148 controls across 14 brain regions. The main effect suggested ecstasy/MDMA related SERT reductions (SMD=0.52, 95% CIs [0.40, 0.65]; Z=8.36, p<.01, I(2)=89%). A significant effect of subgroups (X(2)=37.41, d...

2012
Ricardo Pardo-Lozano Magí Farré Samanta Yubero-Lahoz Brian O’Mathúna Marta Torrens Cristina Mustata Clara Pérez-Mañá Klaus Langohr Elisabet Cuyàs Marcel·lí Carbó Rafael de la Torre

UNLABELLED The synthetic psychostimulant MDMA (± 3,4-methylenedioxymethamphetamine, ecstasy) acts as an indirect serotonin, dopamine, and norepinephrine agonist and as a mechanism-based inhibitor of the cytochrome P-450 2D6 (CYP2D6). It has been suggested that women are more sensitive to MDMA effects than men but no clinical experimental studies have satisfactorily evaluated the factors contrib...

Journal: :Neuro endocrinology letters 2003
Hans Joerg Stuerenburg K Petersen C Buhmann M Rosenkranz T Baeumer R Thomasius

Recreational use of the illegal drug "ecstasy" has increased dramatically in recent years. We have measured 33 different plasma amino acids in ecstasy users and controls. Significant differences were found for phosphoserine, glutamate, citrulline, methionine, tyrosine and histidine. Resembling changes in the plasma amino acids have been described in acute transient polymorphous psychosis. Thus,...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1992
G Rudnick S C Wall

MDMA ("ecstasy") has been widely reported as a drug of abuse and as a neurotoxin. This report describes the mechanism of MDMA action at serotonin transporters from plasma membranes and secretory vesicles. MDMA stimulates serotonin efflux from both types of membrane vesicle. In plasma membrane vesicles isolated from human platelets, MDMA inhibits serotonin transport and [3H]imipramine binding by...

Journal: :Neuropsychobiology 2000
J J Turner A C Parrott

UNLABELLED Every discussant at the Novartis symposium was invited to submit a 250-word abstract, giving their views upon the question: 'Is MDMA a human neurotoxin?'. These abstracts are presented here. They illustrate a wide range of viewpoints and opinions, as might be expected from experts in such diverse fields: animal neuroscience, human cognitive testing, police pathology laboratory, psych...

Journal: :Forensic Chemistry 2022

Forensic drug laboratories are confronted with increasing amounts of drugs and a demand for faster results that directly available on-site. In addition, the market is getting more complex hundreds new psychoactive substances (NPS) entering in recent years. Rapid on-scene presumptive testing therefore faces shift from manual colorimetric tests towards approaches can detect wider range components...

2016
Yasmin Schmid Patrick Vizeli Cédric M. Hysek Katharina Prestin Henriette E. Meyer zu Schwabedissen Matthias E. Liechti

The role of genetic polymorphisms in cytochrome (CYP) 2D6 involved in the metabolism of 3,4-methylene-dioxymethamphetamine (MDMA, ecstasy) is unclear. Effects of genetic variants in CYP2D6 on the pharmacokinetics and pharmacodynamic effects of MDMA were characterized in 139 healthy individuals (70 men, 69 women) in a pooled analysis of eight double-blind, placebo-controlled crossover studies. I...

Journal: :The Journal of the American Board of Family Practice 1999
J A Rochester J T Kirchner

BACKGROUND 3,4-Methylenedioxymethamphetamine (MDMA; ecstasy), a compound chemically related to stimulant and hallucinogenic drugs, has been found to induce a state of euphoria and increased self-awareness. MDMA has been increasingly used for recreational purposes, especially among college students and other young adults, and has been associated with multiple toxic effects. METHODS Using MEDLI...

2011
J. Brown E. Tran

A growing body of evidence suggests that regular ‘ecstasy’ (3, 4-methylenedioxymethamphetamine; MDMA) use causes lasting changes to central serotonergic functioning in humans, including in the occipital lobe. Brown, Edwards, et al. [1] proposed that MDMA-related serotonergic changes in the occipital lobe may reduce lateral inhibition between occipital neurons involved in low level visual percep...

Journal: :Substance use & misuse 2005
James C Hendrickson Dean R Gerstein

Ecstasy (MDMA) use increased rapidly in the U.S. between about 1995 and 2001. Most research on the drug focused on its psychopharmacological and public health contexts. Previous research on drugs-crime linkages suggests that there may have been a concommitant rise in ecstasy-related crimes. We explore this dimension here using data from 7794 arrested men, age 16 to 25, in the 2001 Arrestee Drug...

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