生物标志物 生物标志物
Dahyun Yi1, Min Soo Byun2,3, Gijung Jung1
1Institute of Human Behavioral Medicine, Medical Research Center, Seoul National University, Seoul, Korea, Republic of (South).
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
血神经纤维光链 (NfL) 与阿尔茨海默病 (AD) 中扩散神经退行症的MRI基标记有很强的相关性. 这表明NfL是AD中广泛的轴突损伤和神经退行症的有价值指标.
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
- 阿尔茨海默氏症疾病的诊断方法
背景情况:
- 血神经纤维光链 (NfL) 是阿尔茨海默病 (AD) 中轴突损伤和神经退行 (N) 的关键生物标志物.
- 血NfL和神经成像神经退行症标志物之间的精确关系需要进一步阐明.
- 这项研究旨在调查血NfL和各种神经成像标记物之间的关联.
研究的目的:
- 检查血NfL水平与神经退行症神经成像指标之间的相关性.
- 为了确定血NfL是否与结构性或功能性神经成像标记物更密切相关.
- 评估血NfL在反射AD中扩散与焦点神经退行症的有用性.
主要方法:
- 来自AD频谱内的167名老年人的数据分析,来自韩国脑衰老研究,用于早期诊断和预测AD (KBASE).
- 使用单分子阵列 (SIMOA) 平台测量血NfL.
- 使用结构性MRI (皮层厚度,海马体积,SPARE-AD分数) 和FDG-PET (低代谢) 进行神经成像指标.
- 采用线性回归模型来评估关联,并使用调整R平方,AIC和BIC评估模型性能.
主要成果:
- 血NfL与神经退行症的结构和功能神经成像标志物有显著的关联.
- 皮质厚度降低和SPARE-AD得分更高 (扩散缩) 与血NfL的相关性最强.
- 虽然海马体积显示出中度的关联,但FDG-PET标志物,特别是PCC低代谢,也显示出与血NfL的显著联系.
- 与FDG-PET标志物相比,MRI标志物,特别是那些表明扩散神经退行症的标志物,显示出与血NfL的更强,更一致的关联.
结论:
- 血NfL与MRI衍生的扩散结构神经退行症标志物比功能衰退的FDG-PET标志物更强烈相关.
- 这些发现强调了考虑血NfL与特定神经成像模式之间的相互作用对于准确的AD诊断和监测的重要性.
- 血NfL作为一个有价值的指标,反映了阿尔茨海默病中广泛的神经退行性过程.
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