慢性心力衰竭离子通道谱的稳态调节The regulation of ion channels in chronic heart failure
杨丹丹,白鸿远,马爱群
摘要(Abstract):
慢性心力衰竭时,心肌细胞离子流发生异常,细胞稳态调节作用激活,调节离子通道表达谱及其产物,引起多个离子通道电流的改变,从而恢复细胞内外离子流到理想水平,以维持心肌细胞的电稳定和平衡。稳态调节作用有利于心肌细胞的电稳定,大大提高了心肌细胞对环境的适应能力。但由于心肌细胞间稳态调节的不一致性,引起心肌电活动异常,从而导致心律失常的发生。因此在治疗慢性心力衰竭所致的心律失常时,应在减小心肌细胞工作负荷的同时尽可能地逆转离子通道谱的重构,以减少恶性心律失常的发生。本文主要对慢性心力衰竭的稳态调节作用、离子通道谱重构及导致心律失常的机制进行阐述,并简要介绍心律失常的治疗与展望。
关键词(KeyWords): 慢性心力衰竭;离子通道谱;稳态调节;心律失常;治疗
基金项目(Foundation): 国家自然科学基金重点项目(30830051)
作者(Author): 杨丹丹,白鸿远,马爱群
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