title: Chronic amphetamine administration decreases brain tryptophan hydroxylase activity in cats.
mesh_terms: D000661:Amphetamine / Q000494:pharmacology*; D000818:Animals; D001921:Brain / Q000201:enzymology*; D001923:Brain Chemistry / Q000187:drug effects; D002415:Cats; D005260:Female; D006897:Hydroxyindoleacetic Acid / Q000378:metabolism; D007700:Kinetics; D012701:Serotonin / Q000378:metabolism; D014365:Tryptophan Hydroxylase / Q000037:antagonists & inhibitors*
chemical_list: D012701:Serotonin; D006897:Hydroxyindoleacetic Acid; D000661:Amphetamine; D014365:Tryptophan Hydroxylase