Caution: merging ion channel traffic ahead.

Caution: merging ion channel traffic ahead.
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注意:合并前面的离子通道流量。

DOI:
10.1113/jp284497
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发表时间:
2023
期刊:
The Journal of physiology
影响因子:
--
通讯作者:
Delisle,BrianP
Delisle,BrianP
中科院分区:
--
文献类型:
--
作者:
Burgess,DonE;Delisle,BrianP

文献摘要

被引文献

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KCNH 2,也被称为人类ether-a-go-go相关基因或hERG,编码Kv 11。1通道蛋白,在心脏中传导快速激活的延迟整流钾电流(IKr)。IKr在心室复极中起主要作用,IKr的降低或丧失与致命性心律失常的风险增加有关(Sanguinetti等人,1995年)。心脏安全性评估的一个主要目标是确定改变IKr、心室复极和致心律失常风险的机制。为了理解IKr是如何被修改的,我们可以认为IKr等于Kv 11的数量。1通道在膜(M),开放的概率Kv 11。1通道(Po),以及单个Kv 11的振幅。1通道电流(i)(Hille,2001)。
KCNH2, also known as the human ether-a-go-go related gene or hERG, encodes the Kv11. 1 channel proteins that conduct the rapidly activating delayed rectifier K+ current (IKr) in the heart. IKr plays a primary role in ventricular repolarization, and a decrease or loss in IKr is associated with an increased risk for the deadly cardiac arrhythmias (Sanguinetti et al., 1995). A major goal in cardiac safety assessment is to identify mechanisms that modify IKr, ventricular repolarization, and arrhythmogenic risk. To understand how IKr can be modified, one can think of IKr as being equal to the number of Kv11. 1 channels in the membrane (M), the open probability of the Kv11. 1 channels (Po), and the amplitude of the single Kv11. 1 channel current (i)(Hille, 2001).