生物标志物 生物标志物
Maryam Ghahremani1, Zahinoor Ismail1,2
1Hotchkiss Brain Institute, University of Calgary, Calgary, AB, Canada.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
概括
老年人的持续功能障碍 (FI) 与较高的阿尔茨海默病 (AD) 生物标志物水平有关. 这一发现可能会改善在痴呆症发作之前早期检测AD病理.
科学领域:
- 神经科学是一个神经科学.
- 生物标志物 生物标志物
- 老年学是一门学科.
背景情况:
- 早期识别阿尔茨海默氏症 (AD) 病理学至关重要.
- 微妙的功能障碍 (FI) 可能是痴呆症的前身,但其特征较差.
- 关于微妙的FI和AD生物标志物之间的联系的研究有限.
研究的目的:
- 检查脑脊液 (CSF) AD生物标志物和在没有痴呆症的老年人中持续性与暂时性FI之间的关联.
- 调查持续的FI是否是潜在的AD病理学的标志物.
主要方法:
- 分析了来自阿尔茨海默病神经成像计划的1001名个体的数据.
- 测量到的CSF生物标志物:p-tau181,粉胺-β42 (Aβ42),以及ptau-181/Aβ42的比率.
- 定义的持久FI存在于>三分之二的访问;与暂时FI和没有FI相比.
主要成果:
- 持久性FI与较高的p-tau181和较低的Aβ42水平显著相关.
- 在持久性FI中,ptau-181/Aβ42比率显著更高.
- 过渡性FI与这些生物标志物没有显著关联.
结论:
- 持续的FI与在没有痴呆症的成年人中更大的潜在AD病理负担有关.
- 操作化FI持久性可以提高预测能力和风险分层.
- 这种方法可以改善早期的AD检测和指导干预.
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