大脑小血管疾病揭示了一条血管通道,导致衰老中的运动认知风险
Juan P Vazquez1,2, Gilles Allali3, Olivier Beauchet4,5
1Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA.
Journal of Alzheimer's disease : JAD
|December 22, 2025
概括
脑小血管疾病标志物,包括白质超强度和缺口,与老年人运动认知风险综合征 (MCR) 风险增加有关. 这些发现突出了与MCR相关的特定CSVD模式,即使在没有认知障碍的个体中也是如此.
科学领域:
- 神经学 神经学
- 老年病的医生 老年病的医生
- 放射学 放射学是一门学科.
背景情况:
- 运动认知风险 (MCR) 综合征,以认知问题和缓慢步行为特征,增加痴呆风险.
- 大脑小血管疾病 (CSVD) 在衰老过程中对认知,功能和生存结果产生负面影响.
- 脑血管疾病的MRI标志物包括白质超强度 (WMHs) 和缺口.
研究的目的:
- 调查CSVD和MCR综合征的成像标志物之间的关联.
- 分析WMHs,缺口和MCR,步行速度,缓慢步行和认知投诉之间的关系.
主要方法:
- 利用了来自4个国际队列的横截面数据,其中包括1772名参与者 (平均年龄71.1岁,49.9%是女性).
- 使用标准化分级尺度从脑MRI中量化WMH和缺口.
- 采用调整年龄,性别,研究地点和血管风险因素的回归模型.
主要成果:
- 较高的全球WMH得分与MCR相关 (aOR=1.07,p=0.015).
- 额头和基底腺 WMH,以及基底腺缺陷,独立地与MCR相关.
- 患有混流-扩散WMH的参与者显示MCR的患病率明显更高 (30.2%对19.2%,p=0.003).
结论:
- 在没有认知障碍的老年人中,WMH和缺口独立地预测了MCR的风险增加.
- 确定了与MCR和相关结果相关的特定区域的CSVD模式,在一个大型的多民族队列中.
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