title: Comparative studies of the influence of various K+ concentration on the action of K-strophthidin, digitoxin and strophanthidin-3-bromoacetate on papillary muscle and on membrane-ATPSA of guinea pig hearts.
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism*; D000818:Animals; D002297:Cardanolides / Q000494:pharmacology*; D004074:Digitoxin / Q000494:pharmacology*; D004558:Electric Stimulation; D004789:Enzyme Activation; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects*; D009206:Myocardium / Q000201:enzymology*; D010210:Papillary Muscles / Q000187:drug effects*; D011188:Potassium / Q000494:pharmacology*; D012964:Sodium / Q000037:antagonists & inhibitors; D013329:Structure-Activity Relationship
chemical_list: D002297:Cardanolides; D012964:Sodium; D004074:Digitoxin; D000251:Adenosine Triphosphatases; D011188:Potassium