Effect of phenylephrine on cardiac contractility and adenyl cyclase activity.

Adenosine Triphosphate/metabolism Adenylyl Cyclases/metabolism Animals Chickens Chromatography, Ion Exchange Cyclic AMP/biosynthesis Enzymes/metabolism Glycogen/metabolism Heart/physiology In Vitro Techniques Muscle Contraction/drug effects Myocardium/enzymology,metabolism Norepinephrine/pharmacology Nucleotides/isolation & purification Papillary Muscles Perfusion Phenylephrine/pharmacology Propranolol/pharmacology Rabbits Stimulation, Chemical Tritium

Enzymes Nucleotides Tritium Phenylephrine Adenosine Triphosphate Glycogen Propranolol Cyclic AMP Adenylyl Cyclases Norepinephrine