大脑间歇性流体动力学下降与阿尔茨海默病相关认知能力下降的风险有关
Yihao Guo1, Tao Liu2, Huijuan Chen1
1Department of Radiology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China.
Brain research bulletin
|March 13, 2025
概括
沿周血管空间 (ALPS) 索引进行的扩散张力图像分析可以预测阿尔茨海默氏病 (AD). 较高的ALPS水平与认知能力下降和AD痴呆的风险降低有关,这表明它作为生物标志物的潜力.
科学领域:
- 神经成像是一种神经成像.
- 生物标志物 生物标志物
- 神经退行性疾病 神经退行性疾病
背景情况:
- 反映大脑间歇性液体 (ISF) 动态的ALPS指数显示了预测阿尔茨海默病 (AD) 的潜力.
- 研究ISF动态 (ALPS) 和AD痴呆症诊断之间的关系至关重要.
研究的目的:
- 为了确定ALPS指数是否与AD痴呆症诊断有关.
- 评估ALPS与AD相关的认知变化和进展之间的关联.
主要方法:
- 包括不同认知状态的发现 (n=180) 和验证 (n=127) 队列.
- 使用磁共振成像,神经心理评估,并计算ALPS.
- 开发并验证了用于AD痴呆症诊断的支持向量机 (SVM) 模型;采用线性混合效应和Cox回归模型.
主要成果:
- 在AD痴呆症组中,这两个队伍的中位数ALPS指数显着较低.
- 该SVM模型实现了高的诊断准确性 (AUC 0.802发现,0.783验证).
- 较高的ALPS水平与较少的认知衰退和较低的AD痴呆症转化风险相关.
结论:
- 结合ALPS的SVM模型对于AD痴呆症诊断是有效的.
- 升高的ALPS水平与阿尔茨海默病进展的风险降低有关.
- 作为阿尔茨海默病进展和治疗监测的生物标志物,ALPS显示出前景.
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