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基因决定的葡萄糖胺补充剂对认知和皮症的因果关系:孟德尔的随机化研究
Yi Kang1,2, Yidan Tang1,2, Weishuang Kong3
1Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.
Frontiers in endocrinology
|January 7, 2025
概括
葡萄糖胺补充剂显示了与改善认知功能和降低肉症风险的因果关系. 这些好处可能部分由基础代谢率 (BMR) 和C反应蛋白 (CRP) 水平介导.
科学领域:
- 营养学就是营养学.
- 衰老研究研究 衰老研究
- 代谢健康 代谢健康
背景情况:
- 观察性研究表明,葡萄糖胺可以减轻与年龄相关的认知衰退和肉症.
- 葡萄糖胺与这些与年龄相关的疾病之间的确切因果关系尚不清楚.
- 这项研究调查了葡萄糖胺对认知功能和肉症的直接因果影响.
研究的目的:
- 为了确定葡萄糖胺是否因果关系地影响认知表现和肉症指标.
- 探索潜在的调解因素,如基底代谢率 (BMR) 和C反应蛋白 (CRP),在葡萄糖胺-认知-肉类的轴.
- 提供基于证据的洞察力,了解葡萄糖胺在健康衰老中的作用.
主要方法:
- 利用孟德尔的随机化 (MR) 分析与与葡萄糖胺摄入相关的遗传变异.
- 采用了大规模的全基因组关联研究 (GWAS) 数据,用于认知特征 (认知表现,流体智力评分) 和肉症指标 (尾肌肉质量,全身无脂肪质量,握力,面部衰老,步行节奏,体力活动,GrimAge加速).
- 应用两步MR和多变量MR (MVMR) 来评估BMR和CRP的调解效应,控制骨关节炎 (OA) 和体重指数 (BMI).
主要成果:
- 核磁共振分析显示,葡萄糖胺与认知表现,流体智力评分 (FIS),尾肌肉质量 (ALM),全身无脂肪质量 (WBFM),通常的步行节奏和身体活动水平之间存在显著的积极关联.
- 葡萄糖胺与面部衰老 (FA) 风险和DNA甲基化加速相反相关.
- 葡萄糖胺和手握强度低之间没有发现显著的因果关系;MVMR证实了葡萄糖胺对认知和肌肉质量的独立影响,部分由BMR和CRP介导.
结论:
- 定期使用葡萄糖胺因果关系与增强的认知功能和延迟的肉症有关.
- 这些有益影响有助于在衰老过程中保持功能能力.
- 基本代谢率和C-反应蛋白水平部分介导了观察到的葡萄糖胺对认知和萨科佩尼亚的积极影响.
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