生物标志物 生物标志物
Danni Li1, Binchong An2, Dereck L Salisbury1
1University of Minnesota, Minneapolis, MN, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
非药物干预措施在轻度认知障碍 (MCI) 患者中没有显著改变阿尔茨海默病的血液生物标志物. 然而,血p-Tau 217和血清自由BDNF显示有可能在六个月内检测对照组的变化.
科学领域:
- 神经科学是一个神经科学.
- 生物标志物研究 生物标志物研究
- 老年学是一门学科.
背景情况:
- 血液生物标志物作为阿尔茨海默病 (AD) 非药物干预的替代终点的实用性仍然不确定.
- 该ACT试验调查了轻度认知障碍 (MCI) 的老年人的神经病理,神经营养和神经炎症生物标志物.
研究的目的:
- 为了确定ACT试验干预措施 (ACT,骑自行车,SOP) 与对照组相比,在6个月内是否显著改变了血液生物标志物.
- 评估这些干预措施对血液生物标志物的效果大小.
主要方法:
- 344名参与者的血液样本在五个时间点 (基线至18个月) 进行了分析.
- 测量了神经病理 (Ab42,Ab40,NfL,p-Tau 217),神经营养 (IGF-1,IGFBP-3,自由BDNF) 和神经炎症 (GFAP,clusterin) 的生物标志物.
- 混合效应模型和科恩的d效应大小被用于评估干预效应和群体内部变化.
主要成果:
- 干预组和对照组在3个月或6个月后之间没有观察到生物标志物水平的显著差异.
- 大多数生物标志物显示小组内效应大小 (科恩d<0.2).
- 血p-Tau 217 (d=0.27) 和血清自由BDNF (d=0.71) 在对照组中在6个月后表现出小到中等的效果大小.
结论:
- 在ACT试验中,非药物干预没有对血液中阿尔茨海默病生物标志物产生显著变化.
- 血p-Tau 217和血清自由BDNF显示出在6个月内检测MCI老年人的变化潜力,特别是在对照组中.
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