Evidence for a cholinergic influence on pineal hydroxyindole O-methyltransferase activity with changes in environmental lighting.
D000818:Animals; D001285:Atropine / Q000494:pharmacology; D003624:Darkness; D005260:Female; D007211:Indoles / Q000378:metabolism; D008027:Light; D010275:Parasympathetic Nervous System / Q000502:physiology*; D010870:Pineal Gland / Q000187:drug effects / Q000201:enzymology*; D011760:Pyrrolidinones / Q000494:pharmacology; D051381:Rats; D014166:Transferases / Q000037:antagonists & inhibitors / Q000378:metabolism*
D007211:Indoles; D011760:Pyrrolidinones; D001285:Atropine; D014166:Transferases