Ya-qi Duan

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The aim of the present study was to investigate the influence of osmotic pressure on myocardial contractility and the possible mechanism. Electrical stimulation was used to excite papillary muscles of the left ventricle of Sprague-Dawley (SD) rats. The contractilities of myocardium in hyposmotic, isosmotic, and hyperosmotic perfusates were recorded. The(More)
In our studies, we have applied a novel tool, microelectrode arrays (MEA), to investigate the electrophysiological properties of murine embryonic hearts in vitro. The electrical signals were recorded from the areas of the heart adhering to the 60 MEA electrodes, being called field potentials (FPs). As an extracelluar recording, the waveform of the FP(More)
AIM To study the modulation of extracellular pH on the voltage-gated potassium currents (I(Kv)) in isolated pulmonary artery smooth muscle cells (PASMCs). METHODS I(Kv) was recorded using whole-cell patch clamp technique under the external solutions with different pH. The electrophysiological characteristics of I(Kv) were then analyzed. RESULTS (1) As(More)
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