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门德尔随机化分析确定了外部进食和代谢表型之间的反向因果关系
Yanina Timasheva1,2, Zhanna Balkhiyarova3,4, Diana Avzaletdinova2,4
1Institute of Biochemistry and Genetics, Ufa Federal Research Centre of Russian Academy of Sciences, Ufa 450054, Russia.
Nutrients
|April 27, 2024
概括
确定了与外在饮食等饮食行为的遗传联系. 这些饮食模式因果关系地影响代谢特征和人体测量指标,影响体重和2型糖尿病风险.
科学领域:
- 遗传学和新陈代谢
- 行为科学 行为科学
- 人口健康 人口健康
背景情况:
- 饮食失调与体重增加,肥胖和2型糖尿病 (T2D) 有关.
- 连接饮食模式与代谢表型的精确机制尚未完全理解.
- 遗传倾向可能会影响饮食行为和随后的代谢健康.
研究的目的:
- 识别与特定饮食行为相关的遗传变异.
- 使用孟德尔随机化 (MR) 调查饮食行为和代谢/人类特征之间的因果关系.
- 探索与2型糖尿病和代谢综合征有关的饮食模式的遗传基础.
主要方法:
- 对30种基因变异的关联分析与T2D患者的饮食模式.
- 门德尔随机化 (MR) 用于评估饮食行为变体和代谢特征之间的因果关系.
- 来自伏尔加-乌拉尔地区种群和大型国际联盟的数据分析,包括全基因组协会研究 (GWAS).
主要成果:
- 鉴定出与外部和情绪性饮食相关的遗传变异 (例如,HTR1D,CDKAL1,HTR2A).
- 检测到特定基因位置 (如CRP,ADCY3,GHRL) 和代谢综合征之间的关联.
- 核磁共振显示了外部进食和糖化血红蛋白之间的反向因果关系;外部进食影响了人体特征 (BMI,身高,腰/部周长,体重).
结论:
- 饮食模式显著影响人体测量和代谢健康指标.
- 遗传因素在调解饮食行为与T2D等代谢疾病之间的关系方面发挥着作用.
- 了解这些遗传和因果关系可以为管理肥胖和T2D的策略提供信息.
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