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EADs and DADs in M Cells. Introduction: Oscillations of membrane potential that attend or follow the cardiac action potential and… Expand We studied the effects of different classes of inotropic drugs on human working myocardium in vitro that was isolated from the… Expand Amrinone is a bipyridine derivative with positive inotropic effects and vasodilatory properties. However, in the clinical setting… Expand The Ca2+-sensitive bioluminescent protein aequorin was microinjected into cells of frog at rial trabeculae to study intracellular… Expand The hemodynamic determinants of the time-course of fall in isovolumic left ventricular pressure were assessed in isolated canine… Expand Transmembrane activity was recorded from canine false tendons bathed with Tyrode's solution at 37°C. Stimulus patterns provided a… Expand The role of calcium ions (Ca2+) in the generation of transient depolarizations (TDs) by acetylstrophanthidin was examined… Expand 1. Insulin increased the rate of net Na extrusion from Na‐loaded frog skeletal muscle into glucose‐free Na‐Ringer. After a 90 min… Expand The effects of ouabain (0.01 mg/kg) on ventricular force-velocity relations were studied in six patients who had previously… Expand Atrial contractile force was recorded in anesthetized open-chested dogs using a specially designed adjustable strain-gauge arch… Expand