Possible mode of action of a naturally occurring cardiotonic substance in mammalian tissue.
D000818:Animals; D002118:Calcium / Q000378:metabolism; D004285:Dogs; D004721:Endoplasmic Reticulum; D006168:Guinea Pigs; D006321:Heart / Q000187:drug effects*; D066298:In Vitro Techniques; D009119:Muscle Contraction / Q000187:drug effects*; D009206:Myocardium / Q000378:metabolism; D013154:Spleen; D014020:Tissue Extracts / Q000494:pharmacology*
D014020:Tissue Extracts; D002118:Calcium