title: Studies on the negative chronotropic response to vagal stimulation in hyperthyroid rats.
mesh_terms: D000123:Acetyltransferases / Q000378:metabolism; D000313:Adrenal Medulla / Q000502:physiology; D000818:Animals; D001949:Bretylium Compounds / Q000494:pharmacology; D002118:Calcium / Q000097:blood / Q000378:metabolism; D002794:Choline / Q000494:pharmacology; D003864:Depression, Chemical; D004558:Electric Stimulation; D006339:Heart Rate / Q000187:drug effects*; D006980:Hyperthyroidism / Q000139:chemically induced / Q000201:enzymology / Q000503:physiopathology*; D066298:In Vitro Techniques; D008297:Male; D009206:Myocardium / Q000201:enzymology; D051381:Rats; D013223:Statistics as Topic; D013974:Thyroxine; D013997:Time Factors; D014630:Vagus Nerve / Q000502:physiology* / Q000503:physiopathology*
chemical_list: D001949:Bretylium Compounds; D000123:Acetyltransferases; D002794:Choline; D013974:Thyroxine; D002118:Calcium