在老年人中,社交活动介导着与结相关的认知
Benjamin S Zide1, Nancy J Donovan2,3, Soyoung Lee1
1Division of Geriatric Psychiatry, Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Molecular psychiatry
|February 14, 2024
概括
早期阿尔茨海默氏症病理学在心脏部位与老年人的社会活动减少有关. 这种大脑干的积影响社会功能,反过来影响认知,甚至在认知能力显著下降之前.
科学领域:
- 神经科学是一个神经科学.
- 神经病理学神经病理学
- 老年学是一门学科.
背景情况:
- 位置coeruleus-noradrenaline系统对于认知和行为至关重要.
- 认知储备可以通过终身认知和社会参与来支持.
- 脑干位 (locus coeruleus tau) 的积累是阿尔茨海默病 (AD) 和认知脆弱性的早期标志物.
研究的目的:
- 调查老年人骨位 (LC) 纠密度与死前认知表现和社会活动之间的关联.
- 确定社会活动是否调解LC纠密度和认知之间的关系.
主要方法:
- 一项对142名认知正常和认知受损的老年人进行的临床病理研究.
- 交叉剖面分析的位置coeruleus纠密度,认知表现和社会活动.
- 统计模型对年龄,性别,教育,抑郁症状,以及大脑粉样蛋白和蛋白负担进行了控制.
主要成果:
- 较高的LC纠密度与总样本中的较低的社交活动以及在认知不受损的个体中相关.
- 这些关联独立于人口因素和大脑AD病理.
- 社会活动部分调解了LC纠密度和较低的认知表现之间的联系.
结论:
- - 诺亚上腺素系统病理与晚年社会功能减弱有关.
- 早期的大脑干的积影响了社会活动,独立于已建立的AD标志物.
- 社会参与可能会影响认知轨迹,在明显的AD症状之前.
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