title: Circadian rhythm of histamine in the pineal gland.
mesh_terms: D000818:Animals; D002262:Carboxy-Lyases / Q000378:metabolism; D002940:Circadian Rhythm; D003624:Darkness; D006632:Histamine / Q000378:metabolism*; D006639:Histidine / Q000378:metabolism; D006892:Hydroxydopamines / Q000494:pharmacology; D008027:Light; D008297:Male; D010870:Pineal Gland / Q000187:drug effects / Q000378:metabolism*; D051381:Rats; D012110:Reserpine / Q000494:pharmacology; D012436:S-Adenosylmethionine; D014316:Tritium; D014465:Ultrasonics
chemical_list: D006892:Hydroxydopamines; D014316:Tritium; D006639:Histidine; D012436:S-Adenosylmethionine; D006632:Histamine; D012110:Reserpine; D002262:Carboxy-Lyases