生物标志物 生物标志物
Mei Cui1,2, Zishuo Jin2, Yingzhe Wang2
1MOE Frontiers Center for Brain Science, Fudan University, Shanghai, China.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
血液中的酸217 (pTau217) 显示为预测中风后认知障碍 (PSCI) 的前景. 这种生物标志物与心脏病发作特征相结合,提高了预测准确度,表明阿尔茨海默氏症病理与中风相关的认知衰退之间存在联系.
科学领域:
- 神经学 神经学
- 生物标志物发现发现
- 神经退行性疾病 神经退行性疾病
背景情况:
- 中国面临的中风负担很高,很大一部分患者患有中风后认知障碍 (PSCI).
- 了解脑血管和阿尔茨海默病 (AD) 病理之间的相互作用对于解决中风相关痴呆症至关重要,这是中国最普遍的形式.
研究的目的:
- 调查外围血液生物标志物与PSCI发展之间的关联.
- 探索生物标志物的预测价值,特别是pTau217,用于识别患有PSCI风险的患者.
- 检查pTau217水平,心脏病特征和潜在的粉样蛋白病理学之间的关系.
主要方法:
- 350名缺血性中风患者在中风发作后14天内被招募,其中274人完成了为期6个月的认知评估随访.
- 扩散权重成像 (DWI) 量化了心脏病变的病变,同时测量了周围血液生物标志物 (包括pTau217,GFAP,NFL,IL-6).
- 使用机器学习和ROC曲线分析来评估生物标志物协会和PSCI的预测性能.
主要成果:
- 机器学习发现pTau217,GFAP,NFL和IL-6与PSCI密切相关,反映了神经退行,炎症和神经元损伤.
- 在对心脏病发作量和NIHSS得分进行调整后,pTau217仍然与PSCI有显著的关联.
- 对于PSCI预测,pTau217和心脏病特征的组合实现了0.86的AUC,pTau217对较小心脏病的预测更好. 增加的pTau217与粉样蛋白病理相关.
结论:
- 预先存在的阿尔茨海默病病理可能有助于PSCI的发展.
- pTau217是一种有前途的血液生物标志物,用于检测潜在的粉样蛋白病理.
- pTau217对预测PSCI具有显著的潜力,特别是与心脏病成像数据相结合时.
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