大脑结构不对称与社区居住的老年人认知障碍相关
Soichiro Matsuda1, Takehiko Doi1, Kenji Harada1
1Department of Preventive Gerontology, Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Japan.
Archives of gerontology and geriatrics
|August 1, 2025
概括
前带带皮质中的大脑结构不对称性与老年人注意力障碍有关. 背侧前额皮层不对称性也显示出与执行功能障碍相关的趋势.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 认知科学 认知科学
背景情况:
- 老年人的认知障碍是痴呆症风险评估中日益关注的问题.
- 了解导致认知衰退的因素对于早期检测和干预至关重要.
- 大脑结构不对称是潜在的,但尚未研究的,认知健康的生物标志物.
研究的目的:
- 为了研究大脑结构不对称性和社区老年人的认知障碍之间的关系.
- 识别特定的大脑区域,其中不对称性与记忆,注意力和执行功能的缺陷相关.
- 评估大脑不对称性的实用性,作为认知衰退风险评估的一个因素.
主要方法:
- 对1047名老年人 (平均年龄为70.0±6.3岁) 的横截面研究.
- 用标准化测试对记忆,注意力和执行功能的认知功能进行评估.
- 使用FreeSurfer 6.0分析的大脑体积;对关键大脑区域计算的不对称指数.
- 后勤回归用于确定大脑不对称性和认知障碍标准之间的关联 (1.5 SD低于平均值).
主要成果:
- 在前带皮层 (ACC) 的结构不对称性和注意力障碍之间发现了显著的关联 (OR = 1.37,p = 0.04).
- 在背侧前额皮层 (DLPFC) 的结构不对称性和执行功能障碍 (OR = 1.22,p = 0.06) 之间观察到一种趋势.
- 没有报告记忆障碍与分析的大脑区域不对称性的显著关联.
结论:
- 前带带皮质的结构不对称是老年人注意力障碍的重要相关因素.
- 背侧前额皮质的结构不对称可能与执行功能障碍有关.
- 大脑结构不对称性有可能成为检测特定认知障碍的生物标志物,特别是在注意力和执行功能方面.
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