脑下垂体体积与年龄,性别和整个寿命的认知功能有关:对两个大型基于人口的队列研究进行比较分析
Peng Xu1, Santiago Estrada2, Rika Etteldorf1
1Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany.
EBioMedicine
|December 21, 2024
概括
下丘脑影响认知,特定的子区域显示年龄和性别差异. 这些下丘脑结构与认知表现有关,为与年龄相关的认知衰退提供了潜在的目标.
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.
- 认知科学 认知科学
背景情况:
- 下丘脑,一个关键的恒温中心,越来越多地被认为是它在认知中的作用.
- 对下丘脑结构和认知功能的基于人口的综合性研究是有限的.
研究的目的:
- 在大型基于人群的队列中调查下丘脑结构体积和认知表现之间的关联.
- 检查年龄和性别对下丘脑体积的影响及其与认知的关系.
主要方法:
- 利用了来自莱研究和英国生物库成像研究 (N=50,888) 的横截面数据.
- 使用3T结构性MRI和自动分片 (FastSurfer-HypVINN) 量化下丘脑结构体积.
- 使用标准化神经心理测试电池评估认知表现,并通过多变量线性回归分析关联.
主要成果:
- 观察到与年龄相关的下丘脑体积变化 (例如,前后下丘脑较小,老年人中中部下丘脑较大).
- 在下丘脑体积 (男性较大) 中发现了性别差异.
- 在特定的下丘脑子区域体积和特定的认知表现之间展示了相关性,其中一些区域与更好的认知相关,而另一些区域与更差的认知相关.
结论:
- 已证实,年龄和性别对下丘脑结构有显著的影响.
- 建立了下丘脑亚区域和特定领域的认知功能之间的强有力的联系.
- 突出了特定的下丘脑亚区域作为缓解与年龄相关的认知衰退的潜在治疗点.
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