方法：采用全细胞膜片钳技术，记录钠通道电流。

Methods: Whole-cell patch clamp technique was used to determine sodium channel cur rent.

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方法传代得到单个HERG-HEK细胞，应用全细胞膜片钳技术记录HERG-HEK细胞上的HERG钾电流和动力学曲线（激活、失活、复活和去活化）。

Methods Enzyme digestion was performed to isolate single HERG-HEK cell and whole-cell patch-clamp technique was used to record HERG current and kinetic curves.

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方法全细胞膜片箝技术。

METHOD Whole cell patch clamp techniques.

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