生物标志物 生物标志物
Xiaqing Jiang1, Tina D Hoang2, Leslie M Shaw3
1University of California, San Francisco, San Francisco, CA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
阿尔茨海默病 (AD) 血液生物标志物如Aβ42/40,p-tau217,NfL和GFAP与中年成人认知功能有关. 中年早期的AD病理可能会影响认知能力下降,这凸显了预防策略的重要性.
科学领域:
- 神经学 神经学
- 生物标志物研究 生物标志物研究
- 认知科学 认知科学
背景情况:
- 在中年人群中对阿尔茨海默病 (AD) 血液生物标志物的研究有限.
- 大多数研究都集中在老年人身上,在理解中年认知关联方面存在差距.
研究的目的:
- 在中年人群中研究血AD生物标志物与认知功能之间的关系.
- 探索特定生物标志物 (Aβ42/40,p-tau217,GFAP,NfL) 和认知领域之间的关联.
主要方法:
- 对1356名没有痴呆症的参与者 (平均年龄61岁) 的横截面研究.
- 检测的血Aβ42/40,p-tau217,GFAP,以及NfL.
- 使用线性回归来评估生物标志物与认知表现和潜在种族相互作用的关联.
主要成果:
- 较低的Aβ42/40和较高的p-tau217,NfL和GFAP与AD风险增加有关.
- 较低的Aβ42/40,较高的p-tau217和较高的p-tau217/Aβ42与较差的处理速度和执行功能相关.
- 较高的NfL和GFAP与多个认知领域的缺陷有关,独立于种族.
结论:
- 血液生物标志物表明AD病理和神经退行可能开始影响中年认知.
- 中年代表了AD预防的关键窗口,可能延迟认知衰退和痴呆症发病.
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