title: Dark induced increase in pineal serotonin N-acetyltransferase activity: a refractory period.
mesh_terms: D000123:Acetyltransferases / Q000378:metabolism*; D000818:Animals; D002940:Circadian Rhythm; D003624:Darkness; D005260:Female; D007545:Isoproterenol / Q000494:pharmacology; D010870:Pineal Gland / Q000201:enzymology*; D051381:Rats; D012701:Serotonin; D013997:Time Factors
chemical_list: D012701:Serotonin; D000123:Acetyltransferases; D007545:Isoproterenol