血管认知障碍中的神经相关和适应机制:探索结构-功能合网络的探索
Jing Jin1,2, Jie Ma1,2, Jia-Jia Wu1,2
1School of Rehabilitation Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
CNS neuroscience & therapeutics
|March 9, 2025
概括
血管认知障碍 (VCI) 破坏了大脑网络,但显示了与更好的记忆相关的增强结构-功能合. 这表明VCI中存在补偿机制.
科学领域:
- 神经科学是一个神经科学.
- 神经成像是一种神经成像.
- 认知神经学 认知神经学
背景情况:
- 大脑小血管疾病 (CSVD) 显著恶化认知衰退.
- 血管认知障碍 (VCI) 背后的精确结构功能合机制尚未完全理解.
研究的目的:
- 在VCI中调查白质完整性,结构和功能网络拓.
- 在VCI中探索结构-功能合和认知表现之间的关系.
主要方法:
- 121名参与者 (68名VCI,53名对照) 接受了神经心理测试和多式成像.
- 白质完整性,结构性和功能性网络属性在各组之间进行了比较.
- 结构-功能合被分析与认知功能相关,并应用FWE校正.
主要成果:
- VCI患者表现出白质完整性降低 (分数异性变异性降低,扩散性增加).
- 结构网络分析显示,全球和地方效率受损,VCI中小世界属性发生变化.
- 尽管没有功能网络差异,但VCI在关键的默认模式和视觉网络区域中显示了增强的结构功能合,与内存和处理速度相关.
结论:
- VCI的特征是大脑网络受损,补偿机制增强.
- 这些发现为VCI中的神经可塑性提供了洞察力.
- 这项研究有助于制定痴呆症预防策略.
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