title: Another layer of ventricular heterogeneity? Alpha 1 agonists prolong repolarization in Purkinje fibers but not M-cells.
authors.forename: T J
authors.initials: TJ
authors.lastname: Colatsky
mesh_terms: D000200:Action Potentials / Q000187:drug effects*; D000316:Adrenergic alpha-Agonists / Q000494:pharmacology*; D000818:Animals; D001145:Arrhythmias, Cardiac / Q000209:etiology* / Q000378:metabolism; D006329:Heart Conduction System / Q000187:drug effects*; D006352:Heart Ventricles; D008729:Methoxamine / Q000494:pharmacology; D009206:Myocardium / Q000378:metabolism; D010656:Phenylephrine / Q000494:pharmacology; D011690:Purkinje Fibers / Q000187:drug effects / Q000378:metabolism; D018340:Receptors, Adrenergic, alpha-1 / Q000378:metabolism*
chemical_list: D000316:Adrenergic alpha-Agonists; D018340:Receptors, Adrenergic, alpha-1; D010656:Phenylephrine; D008729:Methoxamine