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高体重指数作为血管相关痴呆的因果风险因素:孟德尔的随机化研究
Liv Tybjærg Nordestgaard1,2,3, Jiao Luo1, Frida Emanuelsson1
1Department of Clinical Biochemistry, Copenhagen University Hospital-Rigshospitalet, Copenhagen 2100, Denmark.
The Journal of clinical endocrinology and metabolism
|January 22, 2026
概括
高体重指数 (BMI) 是血管相关痴呆的因果风险因素. 高血压部分调解了这种关联,这表明BMI和血压是预防痴呆症的关键可修改因素.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 公共卫生 公共卫生
背景情况:
- 肥胖与血管相关的痴呆症有关,代谢因素作为潜在的调解者.
- 肥胖和痴呆症之间的因果关系尚不清楚.
研究的目的:
- 为了确定高体重指数 (BMI) 是否因果上增加了与血管相关的痴呆风险.
- 为了调查高血压,高脂血症,高血糖或炎症是否介导这种效应.
主要方法:
- 利用来自哥本哈根和英国的前性队列研究,包括联盟数据.
- 采用一样本和两样本的孟德尔随机化 (MR) 用个人和总结级数据.
- 对血管相关痴呆症,阿尔茨海默病和缺血性心脏病的评估风险.
主要成果:
- 一个样本MR显示血管相关痴呆的概率比 (OR) 为1.63每1SD更高的BMI.
- 两种样本的MR产生了ORs,范围从1.54到1.98每1SD更高的BMI跨方法.
- 压缩和压缩血压分别介导了BMI对血管相关痴呆症的遗传影响的18%和25%.
结论:
- 高BMI与血管相关痴呆风险增加有关,无论是从观察上还是从遗传上.
- 高血压是BMI和血管相关痴呆症之间关系的重要调解者.
- 管理高BMI和血压可能对痴呆症预防策略至关重要.
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