title: [Factors responsible for myocardial resting membrane potential changes induced by frequent stimulations--analysis of various factors influencing Na-K pump potentials].
mesh_terms: D000818:Animals; D004558:Electric Stimulation; D006321:Heart / Q000502:physiology; D066298:In Vitro Techniques; D007473:Ion Channels; D008564:Membrane Potentials / Q000187:drug effects; D009206:Myocardium / Q000378:metabolism*; D011188:Potassium / Q000378:metabolism*; D011892:Rana catesbeiana; D012964:Sodium / Q000378:metabolism*
chemical_list: D007473:Ion Channels; D012964:Sodium; D011188:Potassium