pubmed:abstractText |
Injections of 3,4-methylenedioxymethamphetamine (MDMA, 25 mg/kg, i.p.) to rats lead to an accumulation of c-fos protein (Fos) and Fos-related antigens in caudate-putamen, nucleus accumbens and olfactory tubercle. This induction occurred at least 2 h (but not at 10 min) after injection and Fos levels had returned to baseline after 24 h, although Fos-related antigens remained elevated 24 h after injection. The NMDA antagonist MK 801 inhibited Fos and Fos-related antigen induction after MDMA injections, whereas fluoxetine, a serotonin uptake inhibitor, had no effect. Thus, MDMA induces Fos and Fos-related antigens in striatal neurons in an NMDA-reversible fashion.
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