大脑白质高强度与中年人群认知表现的关联
Yousef Hannawi1, Lisa R Yanek2, Brian G Kral2
1Division of Cerebrovascular Diseases and Neurocritical Care, Department of Neurology, The Ohio State University, Columbus, Ohio, USA.
Cerebrovascular diseases (Basel, Switzerland)
|November 21, 2024
概括
周心室白质过强度 (PVWMH) 在高危中年成人中比深白质过强度 (DWMH) 更强烈地影响手工灵巧和记忆回忆. 这些发现凸显了PVWMH作为与心血管健康相关的认知功能的关键因素.
科学领域:
- 神经学 神经学
- 神经成像是一种神经成像.
- 认知科学 认知科学
背景情况:
- 白质超强度 (WMH) 被分为周周结膜 (PVWMH) 或深层 (DWMH).
- WMH体积与脑小血管疾病的认知衰退有关.
- 对PVWMH与DWMH的独特认知影响尚不清楚.
研究的目的:
- 为了比较PVWMH和DWMH与认知表现的关联.
- 为了研究这些协会中年个体有心血管疾病的风险.
主要方法:
- 在动脉样硬化风险遗传研究 (GeneSTAR) 中利用了435名参与者的数据 (年龄大于50岁).
- 评估认知功能,使用一系列测试和脑MRI进行WMH量化.
- 采用多级线性回归,调整年龄,内体积和心血管风险因素.
主要成果:
- 与DWMH相比,PVWMH在槽板测试 (手工敏捷性) 上表现较差的关联性更大.
- 此外,PVWMH与延迟单词回忆的较低分数也更强烈地相关.
- 年龄并没有缓解PVWMH和DWMH在认知测试上的差异影响.
结论:
- 与DWMH相比,PVWMH对操纵手工敏捷性和延迟单词回忆有更显著的负面影响.
- 这表明PVWMH可能优先损害对这些功能至关重要的白质道.
- 需要在大型前性研究中进一步验证.
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