《生命科学》 2009, 21(4): 504-507
摘 要:摘 要:阿尔茨海默病的一个重要病理特征是胞外beta淀粉样蛋白沉积形成的老年斑,beta淀粉样蛋白可以引起氧化损伤以及神经细胞凋亡等。随着研究的深入,在细胞内也发现了beta淀粉样蛋白的存在。线粒体是细胞内ATP和活性氧自由基产生的主要部位,在氧化损伤和细胞凋亡过程中起到重要的作用。近年的研究表明,beta淀粉样蛋白对线粒体有很重要的作用。该文主要针对这一领域的进展,介绍了阿尔茨海默病中beta淀粉样蛋白对线粒体多个生理过程的作用以及这些作用在阿尔茨海默病中产生的影响。
关键词:beta淀粉样蛋白;线粒体;阿尔茨海默病
Abstract: Abstract: Alzheimer抯 disease (AD) is characterized by the impairment of cognitive functions and changes in behavior and personality. Mitochondrial oxidative damage and synaptic pathology have recently been reported as early events in AD progression. Increasing evidence suggests that amyloid-b might be the causal factor of mitochondrial oxidative damage and synaptic pathology in AD and the effect of amyloid-b on mitochondrial might be an upstream event in the pathogenesis of AD. In this review we made a summary of the effect of amyloid-b on mitochondrial in Alzheimer抯 disease.
Key words: amyloid-b; mitochondrial; Alzheimer‘s disease