title: Agents that affect calcium influx can change cyclic nucleotide levels in cultured chick pineal cells.
abstract: Previous experiments examined interactions among the effects of cyclic AMP and calcium-related agents on melatonin output by cultured chick pineal cells, and suggested that changes in calcium influx might act through cyclic AMP. Here, effects of calcium-related agents and manipulations on cyclic AMP (and cyclic GMP) levels are demonstrated directly. These effects support a role for cyclic AMP (but not cyclic GMP) in the effects of changes in calcium influx on melatonin production by these cells.
authors.affiliation: Section on Biochemical Pharmacology, National Institute of Mental Health, Bethesda, MD 20892.
authors.forename: M
authors.initials: M
authors.lastname: Zatz
mesh_terms: D015056:1-Methyl-3-isobutylxanthine / Q000494:pharmacology*; D001498:3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ester / Q000494:pharmacology*; D000818:Animals; D002118:Calcium / Q000378:metabolism* / Q000494:pharmacology; D002478:Cells, Cultured; D002645:Chickens; D005576:Colforsin / Q000494:pharmacology*; D000242:Cyclic AMP / Q000378:metabolism*; D006152:Cyclic GMP / Q000378:metabolism*; D004305:Dose-Response Relationship, Drug; D004533:Egtazic Acid / Q000494:pharmacology; D007700:Kinetics; D009568:Nitrendipine / Q000494:pharmacology*; D010870:Pineal Gland / Q000187:drug effects / Q000378:metabolism*
chemical_list: D005576:Colforsin; D004533:Egtazic Acid; D001498:3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl ester; D009568:Nitrendipine; D000242:Cyclic AMP; D006152:Cyclic GMP; D002118:Calcium; D015056:1-Methyl-3-isobutylxanthine