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缺氧缺血与线粒体DNA损伤

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摘要 线粒体DNA(mitochondrial DNA, mtDNA)是唯一的核外遗传物质,为编码线粒体呼吸链复合物的重要组成部分,在细胞能量代谢中起重要作用。缺氧缺血情况下mtDNA易发生损伤,自由基、一氧化氮产生增多是mtDNA损伤的主要因素。缺氧缺血时mtDNA损伤可致细胞凋亡、线粒体呼吸链复合物活性下降,并且不同的组织mtDNA损伤有不同的表现形式。
出处 《国外医学(儿科学分册)》 2002年第1期26-28,共3页 Foreign Medical Sciences(Section of Pediatrics)
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