基础科学和病原发生学
Yifei Ren1,2,3,4, Xiaodong Han5, Lin Song1,2,3
1Department of Neurology, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 23, 2025
概括
老年人的多病症与大脑缩和隐藏的血管大脑损伤 (VBI) 有关. 这些变化包括灰色和白质量减少以及小血管疾病标志物增加.
科学领域:
- 神经学 神经学
- 老年学是一门学科.
- 放射学 放射学是一门学科.
背景情况:
- 多病症对老年人群大脑结构和隐性血管大脑损伤 (VBI) 的影响尚不清楚.
- 了解这些关联对于开发针对老年人认知健康的有针对性的干预措施至关重要.
研究的目的:
- 调查老年人多病症,大脑结构变化和隐性VBI之间的关系.
- 为了确定与大脑变化相关的多病症的特定模式.
主要方法:
- 一项以人口为基础的研究,涉及1,264名60岁及以上的没有痴呆症的参与者.
- 使用等级分类来定义来自23种慢性疾病的多病症集群.
- 大脑MRI被用来评估全球和区域的大脑体积,以及VBI的标志物,包括缺口,大脑微型血流,扩大的周血管空间和白质超强度.
主要成果:
- 多种疾病与灰质体积 (GMV) 和白质体积 (WMV) 的减少以及脑脊液 (CSF) 的增加有关.
- 在AD相关的大脑区域的多病症和缩之间发现了显著的关联,例如先和状.
- 在多病症患者中观察到VBI标志物的增加,包括缺口,大脑微型出血和白质超强度.
结论:
- 具有多病症的老年人的结构性大脑变化具有全球大脑缩的特征.
- 这些变化包括与阿尔茨海默病相关的大脑区域的缩以及隐藏的血管大脑损伤的存在.
- 特定的多病症集群,如代谢和心肌骨,与大脑缩和VBI标志物有显著的关系.
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