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饮食,生活方式和端粒长度:使用NHANES数据上的Copula图形模型

Angelo M Tedaldi¹, Pariya Behrouzi², Pol Grootswagers¹

¹Division of Human Nutrition and Health, Wageningen University and Research, Wageningen, Netherlands.

|January 30, 2025

概括

白血球端粒的长度与C反应蛋白,γ-托哥法醇,咖啡因和纤维摄入量有关. C-反应蛋白可能会调解生活方式因素对跨年龄组端粒长度的影响.

科学领域:

生物遗传学生物遗传学
人类健康人类健康人类健康
衰老研究研究衰老研究

背景情况:

端粒长度是衰老和健康的生物标志物.
之前的研究检查了有限的变量,通常基于预先设定的假设.
需要对影响端粒长度的因素进行全面分析.

研究的目的:

探索各种生活方式和健康因素与不同年龄组白细胞端粒长度 (LTL) 之间的关联.
确定生活方式因素与LTL之间的关系中的潜在调解者.
用数据驱动的方法来生成假设.

主要方法:

对NHANES 1999-2002数据 (n=7096) 的横截面分析.
参与者分为年轻 (20-39岁),中年 (40-59岁) 和老年 (60-84岁) 的年龄组.
形图形建模 (CGM) 用于分析变量相互关系,确定性和灵敏性分析.

主要成果:

血液中C反应蛋白,g-托科菲罗尔和饮食中的咖啡因和纤维摄入量显示,在所有年龄层中,与LTL的反向关联.
性,种族,吸烟,体力活动和社会经济地位等因素与LTL的直接联系最小.
这些因素与C反应性蛋白直接相关,表明它是潜在的调解者.

结论:

C-反应蛋白成为关键的调解者,将生活方式和人口因素与白细胞端粒长度联系起来.
饮食因素 (咖啡因,纤维) 和血液标记物 (C-反应蛋白,γ-托哥菲醇) 与LTL有显著的关联.
这项研究提供了对影响端粒长度的因素的基于网络的理解,突出了C反应性蛋白的核心作用.

关键词:

在C-反应性蛋白质中.尼汉斯 (NHANES) 是一个名人.咖啡因咖啡因是一种咖啡因.端粒的长度端粒的长度 γ-托科菲罗尔的使用.

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