title: A circadian rhythm of tryptophan hydroxylase in rat pineals.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D003513:Cycloheximide / Q000494:pharmacology; D008297:Male; D010870:Pineal Gland / Q000187:drug effects / Q000201:enzymology*; D011433:Propranolol / Q000494:pharmacology; D051381:Rats; D014365:Tryptophan Hydroxylase / Q000378:metabolism*
chemical_list: D003513:Cycloheximide; D011433:Propranolol; D014365:Tryptophan Hydroxylase