This study demonstrates that the isomers of 3,4-methylenedioxyamphetamine (MDA) and 3,4-methylenedioxymethamphetamine (MDMA) are different in their ability to induce changes in serotonergic parameters and nigral concentrations of neurotensin-like immunoreactivity. With five successive doses (3.5 mg/kg) the d-MDA isomer was more potent than the l-MDA in its ability to decrease the concentrations...
In the rat, administration of the psychoactive analog of amphetamine 3,4-methylenedioxymethamphetamine (MDMA), causes selective, pronounced decreases in markers of central serotonergic function. The time course of these neurochemical changes was examined in several serotonergic nerve terminal regions of the brain. Fifteen min after subcutaneous injection of MDMA (10 mg/kg), the enzymatic...