title: [Role of cyclic nucleotides as the "second messenger"].
mesh_terms: D000318:Adrenergic beta-Agonists / Q000494:pharmacology; D000818:Animals; D000242:Cyclic AMP / Q000502:physiology*; D006152:Cyclic GMP / Q000502:physiology*; D006003:Glycogen / Q000378:metabolism; D006801:Humans; D010277:Parasympathomimetics / Q000494:pharmacology
chemical_list: D000318:Adrenergic beta-Agonists; D010277:Parasympathomimetics; D006003:Glycogen; D000242:Cyclic AMP; D006152:Cyclic GMP