title: Actions of glucagon and dibutyryl cyclic 3',5'-AMP on chronotropic responses to vagal stimulation and acetylcholine.
mesh_terms: D000109:Acetylcholine / Q000037:antagonists & inhibitors / Q000378:metabolism / Q000494:pharmacology*; D000818:Animals; D000242:Cyclic AMP / Q000494:pharmacology*; D003864:Depression, Chemical; D004558:Electric Stimulation; D005724:Ganglia / Q000187:drug effects; D005934:Glucagon / Q000494:pharmacology*; D006168:Guinea Pigs; D006325:Heart Atria / Q000187:drug effects / Q000378:metabolism; D006339:Heart Rate / Q000187:drug effects*; D006584:Hexamethonium Compounds / Q000494:pharmacology; D066298:In Vitro Techniques; D009020:Morphine / Q000494:pharmacology; D009411:Nerve Endings / Q000187:drug effects; D010830:Physostigmine / Q000494:pharmacology; D009435:Synaptic Transmission / Q000187:drug effects; D013997:Time Factors; D014630:Vagus Nerve / Q000187:drug effects / Q000502:physiology*
chemical_list: D006584:Hexamethonium Compounds; D009020:Morphine; D005934:Glucagon; D010830:Physostigmine; D000242:Cyclic AMP; D000109:Acetylcholine