title: Studies on cardioactive steroids. I. Structure-activity relationships on the isolated atrium.
mesh_terms: D000107:Acetylation; D000251:Adenosine Triphosphatases / Q000378:metabolism; D000438:Alcohols / Q000494:pharmacology; D000818:Animals; D001145:Arrhythmias, Cardiac / Q000139:chemically induced; D002297:Cardanolides / Q000494:pharmacology; D002301:Cardiac Glycosides / Q000494:pharmacology; D006027:Glycosides; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects*; D006325:Heart Atria / Q000187:drug effects / Q000201:enzymology; D006339:Heart Rate / Q000187:drug effects*; D006900:Hydroxylation; D066298:In Vitro Techniques; D011188:Potassium; D012964:Sodium; D013256:Steroids / Q000494:pharmacology*; D013268:Stimulation, Chemical; D013329:Structure-Activity Relationship; D013997:Time Factors
chemical_list: D000438:Alcohols; D002297:Cardanolides; D002301:Cardiac Glycosides; D006027:Glycosides; D013256:Steroids; D012964:Sodium; D000251:Adenosine Triphosphatases; D011188:Potassium