对肥胖和记忆力下降之间的关联进行系统分析
Ying Yue Huang1,2, Wei Sen Zhang3,4, Jiao Wang1,2
1School of Public Health, Sun Yat-Sen University, 74 Zhongshan 2nd Road, Guangzhou, Guangdong Province, China.
GeroScience
|June 9, 2025
概括
中部肥胖症,特别是腰部与部与身高的比率 (WHHR),与老年人的记忆力较差和认知能力下降较快有关. 高等教育可能会减轻这些影响,这表明肥胖,教育和记忆之间存在复杂的关系.
科学领域:
- 老年学是一门学科.
- 流行病学 流行病学
- 认知神经科学 认知神经科学
背景情况:
- 肥胖是一个日益严重的公共卫生问题,有各种指标.
- 具体的肥胖指标与认知功能 (尤其是记忆) 之间的关系需要进一步阐明.
- 教育水平可能会影响肥胖和认知健康之间的关联.
研究的目的:
- 为了比较20个不同的肥胖指标与中老年人和老年人的记忆功能之间的关联.
- 调查关于记忆的肥胖指标和教育水平之间的潜在相互作用.
- 利用双样本门德尔随机化 (2SMR) 探索肥胖和认知表现之间的因果关系.
主要方法:
- 在广州生物银行队列研究中使用线性回归和分层分析,分析了20个肥胖指标与记忆 (延迟单词回忆测试 - DWRT) 之间的关联.
- 在基线,随访和下降速度时评估记忆功能.
- 应用双样本门德尔随机化 (2SMR) 来检查肥胖和认知表现之间的遗传关联.
主要成果:
- 几种肥胖指标,特别是通过腰与部与身高比率 (WHHR) z-score测量的中心肥胖,与较差的记忆功能和更快的记忆衰退有显著联系.
- 肥胖对记忆力的负面影响在受过高等教育的人群中不那么明显.
- 2SMR分析表明身体质量指数 (BMI),腰围和BMI调整后的腰比与认知表现之间的负相关性.
结论:
- 肥胖,特别是中心肥胖 (WHHR),与中年和老年人群的记忆功能受损和加速记忆衰退有关.
- 更高的教育程度可能会减轻肥胖对记忆力的有害影响.
- 这些发现强调了管理中心肥胖症对于老龄化人口的认知健康保护的重要性.
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