title: Study of a cardiotonic fraction from an extract of the seaweed. Undaria pinnatifida.
mesh_terms: D000818:Animals; D002316:Cardiotonic Agents; D066298:In Vitro Techniques; D008784:Methysergide / Q000494:pharmacology; D051379:Mice; D009200:Myocardial Contraction / Q000187:drug effects; D010646:Phentolamine / Q000494:pharmacology; D010936:Plant Extracts / Q000494:pharmacology*; D011433:Propranolol / Q000494:pharmacology; D051381:Rats; D012624:Seaweed; D000254:Sodium-Potassium-Exchanging ATPase / Q000378:metabolism
chemical_list: D002316:Cardiotonic Agents; D010936:Plant Extracts; D011433:Propranolol; D000254:Sodium-Potassium-Exchanging ATPase; D008784:Methysergide; D010646:Phentolamine