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β-淀粉样蛋白在Alzheimer病中的神经毒性 被引量:5

Effect of β-amyloid peptide in Alzheimer's disease
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摘要 文综述了β淀粉样蛋白多肽(βamyloid peptide,Aβ)在老年性痴呆症(Alzheimer's disease,AD)中的毒性作用。Aβ是老年斑形成的始动因子,也是老年斑核中的核心成分;Aβ沉积所形成的神经炎性斑,即老年斑是AD脑内特征性病理变化之一;Aβ本身也可形成自由基损伤神经元;Aβ引起的细胞凋亡在AD病神经元丢失中起着重要作用;Aβ可作用于胆碱能神经元末梢,通过抑制胆碱的摄取而减少乙酰胆碱合成,减少海马和皮质脑片释放乙酰胆碱。总之,Aβ是通过多个环节引发神经毒性作用的。
出处 《四川生理科学杂志》 2007年第2期81-84,共4页 Sichuan Journal of Physiological Sciences
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