早期更年期与全球大脑活动减少有关
Xufu Liu1, Liying Luo2, Laura Pritschet3
1Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA, 16802, USA.
bioRxiv : the preprint server for biology
|November 24, 2025
概括
早期更年期与较弱的大脑活动和记忆力受损有关. 这可能解释了更年期更早到期的女性的加快衰老和更高的痴呆风险.
科学领域:
- 神经科学是一个神经科学.
- 衰老研究研究 衰老研究
- 妇女健康 妇女健康
背景情况:
- 更年期涉及卵巢激素的下降,加速衰老和增加女性的神经退行性疾病风险.
- 早期更年期会加剧生理衰老,记忆障碍和痴呆症风险.
- 超慢的全球大脑活动 (<0.1 Hz) 对唤醒,记忆和废物清除至关重要,可能会影响阿尔茨海默病 (AD).
研究的目的:
- 为了研究更年期的时间和全球大脑活动之间的关系.
- 了解早期更年期如何影响大脑功能和认知表现.
主要方法:
- 利用了来自人类结合体项目衰老数据集的静止状态功能磁共振成像 (fMRI) 数据.
- 在早期和晚期更年期妇女之间比较低速的全球大脑活动和脑脊液 (CSF) 流量合.
主要成果:
- 更年期较早的女性显示全球大脑活动显著减弱 (p=5.0×10-4),脑流合减少 (p=0.017).
- 这些差异在高阶大脑区域中突出.
- 大脑激活与记忆表现的相关性仅在更年期早期的女性中.
结论:
- 早期更年期与全球大脑活动的改变和中枢神经液流量受损有关.
- 这些大脑变化可能是早期更年期妇女的记忆力缺陷和痴呆风险增加的基础.
- 研究结果表明,一个潜在的机制将更年期的时间与加速的大脑衰老和神经退行症联系起来.
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