在被考虑接受抗粉样蛋白治疗的人群中混合病理和认知结果的资格评估:基于社区的研究
Alifiya Kapasi1,2, Bryan David James1,3, Lei Yu1,4
1Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL.
Neurology
|August 18, 2025
概括
混合的大脑病理在适应抗粉样蛋白疗法的个体中很常见. 这些同时发生的条件,包括纠结和LATE-NC,显著推动认知能力下降,特别是在情节性记忆中.
科学领域:
- 神经病理学神经病理学
- 神经退行性疾病 神经退行性疾病
- 认知老龄化 认知老龄化
背景情况:
- 抗粉样蛋白单克隆抗体显示出有限的临床疗效,尽管降低大脑β-粉样蛋白 (Aβ).
- 其他大脑病理可能会阻碍轻度认知障碍 (MCI) 或轻度痴呆症患者的抗粉胺治疗的有效性.
- 这项研究调查了被认为符合抗粉样蛋白治疗资格的个体中混合病理的患病率和认知影响.
研究的目的:
- 检查适宜接受抗粉样蛋白治疗的个体中混合脑病态的负担.
- 确定各种神经病理和认知衰退率之间的关联.
- 了解如何共存的病理影响潜在的抗粉样蛋白治疗的背景下认知结果.
主要方法:
- 分析了428名符合抗粉胺治疗资格标准的老年人尸检数据 (MMSE≥20,MCI或轻度阿尔茨海默氏症痴呆症,中度Aβ病理).
- 检查共病理的数量和类型,包括阿尔茨海默病的神经病理变化 (ADNC),LATE-NC,Lewy体 (LBs) 和心脏病发作.
- 应用混合效应模型来评估Aβ,,LATE-NC,心脏病发作,LB和血管疾病与认知衰退率之间的关系.
主要成果:
- 在428人中,94%的人患有ADNC,但只有26%的人单独患有ADNC;68%的人患有至少一个共病理的ADNC.
- 纠结和动脉样硬化与更快的全球认知衰退有关.
- 纠结和LATE-NC与更快的情节性记忆下降有关;ADNC与语义记忆下降有关;Aβ与工作记忆下降有关;动脉样硬化与感知速度下降有关.
结论:
- 在被考虑接受抗粉样蛋白治疗的人群中,混合病理非常普遍.
- 除Aβ外,结,LATE-NC和血管病理显著导致认知能力下降,特别是在情节性记忆中.
- 同时存在的病理可能会限制抗粉样蛋白疗法的临床疗效,即使在符合条件的患者中.
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