OALib Journal期刊
ISSN: 2333-9721
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铅对脑屏障系统的损伤及其机制的研究进展
Keywords: 氯铅,脑屏障系统,血脑屏障,血脑脊液屏障,脉络丛
Abstract:
?铅是一种广泛存在的环境毒物,可对人和动物造成多系统的毒性损伤。在世界多个国家,铅毒性引起的健康损害依然是主要的公共卫生问题之一。铅作用于全身各系统和器官,累及中枢神经系统,影响儿童的智力发育,导致成人记忆力损伤、阿尔茨海默症样病变及其他神经退行性病变。铅从周围血液循环进入脑实质首先必须穿过血脑屏障和血脑脊液屏障。目前的研究显示,脑屏障系统是铅毒性作用的靶标,铅通过损伤脑屏障的结构功能并进入脑实质,造成一系列的神经系统毒性,现对近年来铅对脑屏障系统的毒作用及其机制作一综述。
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