Advances in the Mechanism of Cerebral Amyloid Angiopathy

doi:10.3969/j.issn.1673-5765.2021.12.014

Abstract

Abstract: Amyloid β (Aβ) is the main pathogenic substance of cerebral amyloid angiopathy (CAA). The disorders of Aβ production and clearance results in abnormal Aβ deposits, and causes a series of pathological changes such as vascular wall destruction and lumen stenosis, which ultimately leads to CAA. At present, the specific pathogenic mechanism of CAA is still unclear, and the involved components are complex. This article introduced the three pathways of Aβ production and elimination, the subsequent effects after this balance being disrupted and the main influencing factors, and the CAA classification from etiological perspective.

Key words: Cerebral amyloid angiopathy; Amyloid β; Mechanism; Pathophysiology; Gene

摘要： 脑淀粉样血管病（cerebral amyloid angiopathy，CAA）的主要致病物质是β淀粉样蛋白，其产生异常、清除障碍导致异常沉积，引起管壁破坏、管腔狭窄等病理变化，最终导致CAA。目前CAA的具体发病机制尚不清楚，涉及的成分复杂。本文介绍了β淀粉样蛋白产生及清除的三种过程及其平衡破坏的后续效应和主要影响因素，同时从病因分类的角度阐明CAA的类型。

关键词: 脑淀粉样血管病; β淀粉样蛋白; 机制; 病理生理; 基因

WU Juanjuan, NI Jun. Advances in the Mechanism of Cerebral Amyloid Angiopathy[J]. Chinese Journal of Stroke, 2021, 16(12): 1278-1283.

吴娟娟, 倪俊. 脑淀粉样血管病发病机制的研究进展[J]. 中国卒中杂志, 2021, 16(12): 1278-1283.

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