Omega-3多不饱和脂肪酸抗心律失常作用及其机制研究进展

Anti-arrhythmic effect of omega-3 polyunsaturated fatty acids and its underlying mechanism: a review of research progress

摘要:

越来越多的研究表明，n-3多不饱和脂肪酸（n-3PUFAs）能降低心率，提高心率变异性，减少室性心律失常的发生，预防心源性猝死及减少心房颤动复发等抗心律失常作用，也有研究发现n-3PUFAs具有致心律失常的作用。本文通过分析n-3PUFAs离子通道作用特点及其抗心律失常作用机制，发现n-3PUFAs干预方式不同，作用机制不完全一样，表明n-3PUFAs在抗心律失常方面具有两面性。

Abstract:

Much evidence shows that omega-3 polyunsaturated fatty acids (n-3PUFAs) protect the heart by reducing heart rate, increasing heart rate variability, decreasing atrial fibrillation, and preventing ventricular fibrillation arrhythmias and sudden cardiac death. However, some researches suggest that n-3PUFAs exert pro-arrhythmic action. The purpose of this review was to summarize the effects of n-3PUFAs on ion channels and anti-arrhythmic mechanism. Acute administration and long-term use of n-3PUFAs have quite different electrophysiological actions, indicating their anti- and pro-arrhythmic actions in different clinical settings.