在印度,基于血液的神经退行性生物标志物与认知功能和衰退之间的关联
Emma Nichols1,2, Jinkook Lee1,3, Alden L Gross4
1Center for Economic and Social Research, University of Southern California, Los Angeles, CA, USA.
Journal of Alzheimer's disease : JAD
|July 24, 2025
概括
神经退行性疾病的血液生物标志物在印度表现有前途. 神经纤维光 (NfL) 显示出与认知衰退的最强相关性,支持它们在不同人群中的使用.
科学领域:
- 神经学 神经学
- 生物标志物研究 生物标志物研究
- 老年学是指老年学的学科.
背景情况:
- 基于血液的生物标志物为研究神经退行性疾病 (如阿尔茨海默氏症) 提供了一种具有成本效益的,最少侵入性的方法.
- 现有的研究主要利用来自高收入地区的临床样本,限制了概括性.
- 评估这些生物标志物在全球多样化的人口中至关重要.
研究的目的:
- 评估印度神经退行性血液生物标志物的实用性.
- 量化特定生物标志物和认知结果在全国代表的印度队列之间的关联.
主要方法:
- 利用了来自印度长度衰老研究的数据 - 痴呆症诊断评估 (N=4096).
- 五种生物标志物 (粉样β 42/40,总tau,pTau-181,GFAP,NfL) 与认知结果之间的量化关联.
- 分析了横截面和纵向的认知数据.
主要成果:
- 观察到生物标志物 (Aβ42/40,GFAP,NfL) 和横截面认知功能之间的显著关联.
- 发现生物标志物 (pTau-181,NfL) 与纵向认知变化之间的关联.
- 神经纤维光 (NfL) 显示出与认知衰退的最强相关性,表明了实质性的影响.
结论:
- 神经退行性生物标志物与印度人口的认知结果和死亡率有关.
- 这些发现支持在印度应用这些生物标志物用于痴呆症研究.
- 未来在印度的研究可以使用这些验证的生物标志物来探索痴呆症异质性.
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