遗传倾向,血代谢和地中海饮食在痴呆风险和认知功能的相互作用
Yuxi Liu1,2,3, Xiao Gu4, Yanping Li4
1Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
Nature medicine
|August 25, 2025
概括
阿尔茨海默病的风险因基因构成而异,特定的代谢物根据APOE4基因型对痴呆产生不同的影响. 精准营养,就像地中海饮食一样,可以为阿尔茨海默病和相关痴呆症提供有针对性的预防策略.
科学领域:
- 神经科学
- 遗传学
- 代谢学
背景情况:
- 阿尔茨海默病 (AD) 和与AD相关的痴呆症 (AD/ADRD) 具有重要的遗传成分.
- APOE4同位素代表一个独特的遗传亚型,影响痴呆风险.
研究的目的:
- 确定基因型特定的代谢途径和可修改的ADRD风险因素.
- 探索基因变异,血代谢和痴呆风险中的饮食模式之间的相互作用.
主要方法:
- 综合了来自大型潜在队列 (4,215名女性,1,490名男性) 的遗传,血代谢和饮食数据.
- 分析了57种代谢物与痴呆风险之间的关联,按APOE4基因型和其他ADRD风险变体分层.
- 使用孟德尔随机化推断代谢物与认知结果之间的因果关系.
主要成果:
- 代谢物与痴呆风险因APOE4基因型而有显著差异.
- 在APOE4同胞体中,胆固醇和斯芬戈米林与更高的痴呆风险有关;而糖则与该组特有相反的关联.
- 在APOE4同胞体中,坚持地中海饮食更有效地调节与痴呆相关的代谢物;确定了19种因果代谢物-认知结果关系.
结论:
- 与认知健康相关的代谢特征依赖于基因型.
- 根据遗传特征定制的精准营养策略,
- 代谢数据可以适度提高痴呆风险预测,特别是在早期的随访阶段.
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