白质的高强度导致大脑小血管疾病中灰质缩的传播
Ronghua Mu1, Peng Yang1, Xiaoyan Qin1
1Department of Radiology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin 541004, China.
Brain communications
|November 14, 2025
概括
白质高强度 (WMH) 会导致大脑变化和认知衰退. 右侧脑岛是推动这些变化的关键枢纽,影响执行职能和处理速度.
科学领域:
- 神经成像是一种神经成像.
- 神经学 神经学
- 大脑解剖学 大脑解剖学
背景情况:
- 白质超强度 (WMH) 与认知衰退和大脑结构变化有关.
- 连接WMH,灰质体积 (GMV) 变化和认知障碍的确切机制尚未完全理解.
- 研究WMH的渐进性结构变化对于了解疾病机制至关重要.
研究的目的:
- 调查脑小血管疾病 (CSVD) 和WMH患者的渐进性结构性大脑变化.
- 绘制与WMH进展相关的因果关系和网络中断.
- 探索GMV变化在WMH和认知衰退之间的关系中的调解作用.
主要方法:
- 招募了185名CSVD患者和40名健康对照人进行MRI扫描.
- 使用基于voxel的形态测量,因果结构共差网络分析,模块化分析和调解分析.
- 分析了GMV变化,网络属性,以及它们与WMH体积和疾病严重程度的认知功能之间的关系.
主要成果:
- 转基因病毒的减少始于右脑岛,并扩散到其他大脑区域,随着WMH严重程度的增加.
- 确定右侧胰岛是影响GMV减少在执行职能和注意力关键区域的因果关系的中心枢纽.
- 减少GMV显著调解了WMH体积和认知障碍之间的联系,特别是执行功能和处理速度.
结论:
- 右半岛是推动GMV缩和WMH网络中断的关键枢纽.
- 早期参与和对右半岛的因果影响表明它是一个潜在的治疗目标.
- 了解这些途径是开发CSVD认知衰退干预措施的关键.
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