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载脂蛋白E与阿尔茨海默病淀粉样蛋白变性

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摘要 阿尔茨海默病是老年性痴呆的最重要类型,其典型病理改变是老年斑和神经纤维缠结。近年研究发现载脂蛋白E在阿尔茨海默病患者脑中老年斑和神经纤维缠结的形成中起着重要作用。载脂蛋白E4可促进β-淀粉样蛋白聚集并沉积形成老年斑团块,促进异常高度磷酸化的微管相关蛋白tau自发聚集形成双螺旋丝和神经纤维缠结,促进阿尔茨海默病的发病。载脂蛋白E3具有保护作用,抑制老年斑和神经纤维缠结的形成。
作者 岳培斌
出处 《国外医学(老年医学分册)》 2000年第3期108-111,共4页 Foreign Medical Sciences(Geriatrics)
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