title: Isolation of a cardiotonic principle from Alpinia oxyphylla.
mesh_terms: D000818:Animals; D002316:Cardiotonic Agents / Q000302:isolation & purification*; D006139:Guaiacol / Q000031:analogs & derivatives* / Q000302:isolation & purification / Q000494:pharmacology; D006168:Guinea Pigs; D019684:Magnoliopsida; D008297:Male; D010936:Plant Extracts / Q000032:analysis* / Q000494:pharmacology; D010946:Plants, Medicinal; D000254:Sodium-Potassium-Exchanging ATPase / Q000378:metabolism
chemical_list: D002316:Cardiotonic Agents; D010936:Plant Extracts; D006139:Guaiacol; C042566:yakuchinone-A; D000254:Sodium-Potassium-Exchanging ATPase