Objective To investigate the effect of nitric acid ester on pulse pressure(PP) in elderly patients with isolated systolic hypertension(ISH).
目的观察硝酸酯类药物对老年单纯收缩期高血压（ISH）患者脉压（PP）的影响。
METHODS: The quasi-steady state current-voltage relationship from the isolated rat ventricular myocytes was measured using whole-cell voltage-clamp techniques with a ramp pulse protocol.
方法：应用全细胞电压箝技术的斜坡脉冲程序，测定离体大鼠心肌细胞准稳态电流-电压关系曲线。
METHODS: The quasi-steady state current-voltage relationship from the isolated rat ventricular myocytes was measured using whole-cell voltage-clamp techniques with a ramp pulse protocol.
方法：应用全细胞电压箝技术的斜坡脉冲程序，测定离体大鼠心肌细胞准稳态电流-电压关系曲线。
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