Caffeine-induced expression of c-fos mRNA and NGFI-A mRNA in caudate putamen and in nucleus accumbens are differentially affected by the N-methyl-D-aspartate receptor antagonist MK-801.


Caffeine (100 mg/kg, i.p.) induces a rapid increase in the expression of mRNA for the immediate early genes (IEGs) c-fos and NGFI-A in rat striatum. We have examined how this response is affected by pretreatment with either the noncompetitive N-methyl-D-aspartate (NMDA) receptor antagonist MK-801 (1 and 3 mg/kg, i.p.), the competitive NMDA receptor… (More)


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