Keywords
retinol; potassium; retinol; sodium; animal cell; article; frog; heart muscle cell; heart muscle contractility; heart muscle excitability; heart muscle potential; membrane steady potential; nonhuman; action potential; animal; capillary permeability; cell membrane; cell membrane potential; comparative study; cytology; drug effect; heart; heart contraction; heart muscle; in vitro study; metabolism; physiology; Animalia; Anura; Action Potentials; Animal; Capillary Permeability; Cell Membrane; Comparative Study; English Abstract; Heart; In Vitro; Membrane Potentials; Myocardial Contraction; Myocardium; Potassium; Rana temporaria; Sodium; Vitamin A