生物标志物 生物标志物
1Changi General Hospital, Singapore, Singapore, Singapore.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
增长差异化因子-15 (GDF-15) 与神经纤维光链 (NfL) 和较低的认知功能相关,脉冲压 (PP) 调解了这种关系. 这些发现表明GDF-15是GDF-15.
科学领域:
- 神经退行和认知衰退的生物标志物.
- 线粒体功能障碍及其系统性影响.
- 大脑血管健康和认知障碍.
背景情况:
- 增长分化因子-15 (GDF-15) 是一种与线粒体功能障碍,氧化应激和炎症相关的新兴生物标志物.
- 脉冲压 (PP) 因其对大脑血流的影响而与认知障碍有关.
- 这项研究调查了GDF-15,神经丝光链 (NfL) 作为神经轴损伤的标记物和认知功能之间的关系,探索PP作为潜在的调解者.
研究的目的:
- 检查GDF-15水平与神经丝光链 (NfL) 和认知功能之间的关联.
- 研究脉冲压 (PP) 在GDF-15和NfL之间的关系中的调解作用.
- 探索GDF-15作为认知障碍生物标志物的潜力.
主要方法:
- 100名来自第三级医院的参与者的横截面研究.
- 使用酶相关免疫吸收试验测量血GDF-15和NfL.
- 通过蒙特利尔认知评估 (MoCA) 评估认知功能,并计算外围PP.
主要成果:
- GDF-15与NfL (r=0.520,p<0.001) 正相关,与MoCA得分负相关 (r=-0.213,p=0.036).
- 在线性回归分析中,GDF-15与较高的NfL和较低的MoCA得分相关 (分别为p<0.001和p=0.013).
- 调解分析表明,PP占GDF-15和NfL之间的关联的15.7% (p=0.046).
结论:
- 在老年人中,GDF-15与增加的神经轴损伤 (NfL) 和降低认知功能有关.
- 脉冲压 (PP) 部分调解了GDF-15和NfL之间的关系.
- GDF-15可能在认知障碍中发挥作用,这表明未来针对GDF-15和PP预防的干预措施的潜力.
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