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摘要: 作为一种罕见的遗传性疾病, 儿茶酚胺敏感性多形性室性心动过速 (catecholaminergic polymorphous ventricular tachycardia, CPVT) 被视为心源性猝死的重要原因之一。大量研究发现, Ryanodine受体2 (RyR2) 基因突变可以导致CPVT。RyR2是存在于心肌细胞肌浆网上的一种钙释放通道, 其调控异常、结构改变等均可导致心肌细胞自发性Ca2+泄漏, 引发多种心脏疾病, 严重时可出现心力衰竭, 甚至猝死。本文主要综述RyR2基因突变与CPVT的关系, 以及将RyR2作为靶点的CPVT临床治疗及法医学诊断价值。
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关键词:
- 儿茶酚胺敏感性多形性室性心动过速 /
- Ryanodine受体2 /
- 基因突变
Abstract: As a rare hereditary disease, catecholaminergic polymorphous ventricular tachycardia (CPVT) is considered as a major cause of sudden unexpected cardiac death.Amount of research have reveal that the gene mutations of Ryanodine receptor 2 (RyR2) was recognized as a part of the pathophysiology of CPVT.The RyR2, a Ca2+release channel on the sarcoplasmic reticulum, plays a key role in the event of spontaneous Ca2+leakage and sequential cardiac disease, even heart failure and sudden cardiac death, which was mainly due to the abnormal regulation and structural modifications of RyR2.In the present article, we present an overview of the advances in the gene mutations of RyR2 in CPVT and discuss the implications of the findings for CPVT therapy and forensic diagnosis. -
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