title: Lowered chronotropic sensitivity of rat and frog hearts to sympathomimetic amines following cold acclimation.
mesh_terms: D000064:Acclimatization; D000818:Animals; D001001:Anura; D001831:Body Temperature; D003080:Cold Temperature; D004305:Dose-Response Relationship, Drug; D004837:Epinephrine / Q000008:administration & dosage / Q000494:pharmacology*; D005260:Female; D006339:Heart Rate / Q000187:drug effects*; D007275:Injections, Intravenous; D007545:Isoproterenol / Q000008:administration & dosage / Q000494:pharmacology*; D008297:Male; D009638:Norepinephrine / Q000008:administration & dosage / Q000494:pharmacology*; D010656:Phenylephrine / Q000008:administration & dosage / Q000494:pharmacology*; D011896:Rana temporaria; D051381:Rats; D013268:Stimulation, Chemical; D013997:Time Factors
chemical_list: D010656:Phenylephrine; D007545:Isoproterenol; D009638:Norepinephrine; D004837:Epinephrine