生物标志物 生物标志物
Alaa Harb1, Juliana Nery Souza-Talarico2, Yelena Perkhounkova1
1University of Iowa, Iowa City, IA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
累积的生物压力 (全静电负荷) 生物标志物在阿尔茨海默病 (AD) 进展过程中发生不同的变化. 特定的神经内分泌和炎症标志物,如皮质醇和IL-18,与认知能力下降和AD有关.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 生物标志物研究 生物标志物研究
背景情况:
- 静态负荷 (AL) 量化了累积的生物压力.
- AL可能会增加阿尔茨海默病 (AD) 的风险.
- 在认知衰退期间,AL生物标志物模式可能会从认知无损 (CU) 转变为轻度认知障碍 (MCI) 和AD.
研究的目的:
- 研究AL生物标志物的纵向变化.
- 在CU,MCI和AD个体中分析AL生物标志物模式.
- 确定AL生物标志物变化和AD进展之间的关联.
主要方法:
- 使用了阿尔茨海默病神经成像计划 (ADNI) 数据库.
- 在CU,MCI和AD组中,分析了24个月的AL生物标志物变化.
- 计算平均静电负载指数 (ALI) 和标准偏差.
主要成果:
- 基线ALI在所有认知群体中都相似.
- 在神经内分泌生物标志物 (皮质醇,益生菌,LH,) 中观察到显著的纵向变化.
- 炎症生物标志物 (IL-18,TNF-α,IL-6R,MCP-3) 在认知群体中显示出不同的模式,在AD中水平更高.
结论:
- 纵向AL生物标志物变化,特别是皮质醇,益生素,IL-18和TNF-α,与认知能力下降和AD进展相关.
- 未来的研究应该集中在识别AL生物标志物集群与AD连续性的认知衰退相关.
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