心脏起搏器（If）电流的特性。
Properties of the cardiac pacemaker (if) current.
作者信息
DiFrancesco D
出版信息
Boll Soc Ital Biol Sper. 1984 May 30;60 Suppl 4:29-33.
PMID:6466486
Abstract
The cardiac pacemaker if current, once thought to be a pure K+ current, is shown to be carried by both Na and K. It is inward and activating during hyperpolarizations negative to -50/-60 mV in normal conditions. Its kinetics are delayed during both activation and deactivation.
摘要
心脏起搏器电流（曾被认为是一种纯钾电流）现显示由钠和钾共同携带。在正常情况下，当超极化至负于-50/-60 mV时，它是内向且起激活作用的。其动力学在激活和失活过程中均有延迟。
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