中国组织工程研究 ›› 2024, Vol. 28 ›› Issue (23): 3699-3703.doi: 10.12307/2024.417

• 肌肉肌腱韧带组织构建 tissue construction of the muscle, tendon and ligament • 上一篇    下一篇

两样本孟德尔随机化分析血脂与肌肉减少症的因果关系

彭志华,潘俊曦,冯庆辉,田天照,张  胜,李  安,蔡迎峰   

  1. 广州医科大学附属中医医院,广东省广州市  510000
  • 收稿日期:2023-05-21 接受日期:2023-07-15 出版日期:2024-08-18 发布日期:2023-09-13
  • 通讯作者: 蔡迎峰,主任医师,广州医科大学附属中医医院,广东省广州市 510000
  • 作者简介:彭志华,1980年生,广东省封开县人,汉族,2015年广州中医药大学毕业,副主任中医师,主要从事中医骨伤科学方面的研究。
  • 基金资助:
    广东省中医药局中医药科研项目(20222182),项目负责人:彭志华

The causal relationship between blood lipids and muscle atrophy based on Mendelian randomization analysis of two samples

Peng Zhihua, Pan Junxi, Feng Qinghui, Tian Tianzhao, Zhang Sheng, Li An, Cai Yingfeng   

  1. The Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510000, Guangdong Province, China
  • Received:2023-05-21 Accepted:2023-07-15 Online:2024-08-18 Published:2023-09-13
  • Contact: Cai Yingfeng, Chief physician, The Affiliated TCM Hospital of Guangzhou Medical University
  • About author:Peng Zhihua, Associate chief physician, The Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou 510000, Guangdong Province, China
  • Supported by:
    Chinese Medicine Research Project of Guangdong Provincial Administration of Traditional Chinese Medicine, No. 20222182 (to PZH)

摘要:


文题释义:

肌肉减少症:是指随着年龄增长人体骨骼肌质量逐渐减少的一种状况,它通常伴随着肌肉力量和身体功能的下降,可能导致恶病质、虚弱、跌倒、骨折等健康问题,这是老龄化社会面临的一个重要问题。肌肉减少症的发生受多种因素的影响,包括遗传多态性、营养不良、性激素水平、疾病状态等。
孟德尔随机化:是一种研究因果关系的方法,利用基因突变作为自然随机分配的工具变量,来评估某个因素对特定结果的影响。通过分析具有随机分配的遗传变异,可以减少混杂因素的干扰,从而更准确地推断因果关系。在此次研究中,孟德尔随机化被用于研究脂质代谢与肌肉减少症之间的关系,以揭示脂质异常对肌肉质量的潜在影响。


背景:骨质疏松常伴有肌肉减少症的发生并增加摔倒骨折的风险。近年来的研究表明,脂质代谢与肌肉减少症之间存在密切关系。异常的脂质代谢可能对肌肉的生理功能和代谢产生直接的影响。

目的:探究脂质代谢与肌肉减少症之间的关系,并使用孟德尔随机化方法来评估其因果关系。
方法:使用孟德尔随机化方法探究低密度脂蛋白胆固醇、高密度脂蛋白胆固醇和三酰甘油与肌肉量之间的因果关系;采用了全基因组关联研究的研究数据,并进行敏感性分析来验证结果的可靠性;采用肌肉量的近似指标作为结局指标,包括四肢瘦体质量和躯干瘦体质量。

结果与结论:①结果发现,肌肉量与低密度脂蛋白胆固醇和三酰甘油存在负相关关系,而高密度脂蛋白胆固醇与肌肉量之间未发现相关性;②敏感性分析结果表明因果关系稳健;③通过孟德尔随机化方法,此次研究提供了低密度脂蛋白胆固醇和三酰甘油与肌肉量之间存在因果关系的证据,这一发现深化了脂质对肌肉减少症影响的理解,对于预防及治疗肌肉减少症和骨质疏松症具有重要的临床意义。

https://orcid.org/0009-0007-2083-7878(彭志华)

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 肌肉减少症, 骨质疏松症, 孟德尔随机化, 脂质代谢, 低密度脂蛋白胆固醇, 高密度脂蛋白胆固醇, 三酰甘油, 肌肉量

Abstract: BACKGROUND: Osteoporosis is often accompanied by sarcopenia and an increased risk of fractures from falls. Recent studies have indicated a close relationship between lipid metabolism and sarcopenia. Abnormal lipid metabolism may directly impact muscle physiological function and metabolism. 
OBJECTIVE: To investigate the relationship between lipid metabolism and sarcopenia and evaluate their causal relationship using Mendelian randomization.
METHODS: Mendelian randomization was used to explore the causal relationship between low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglycerides, and muscle mass. Research data from genome-wide association studies were used and a sensitivity analysis was conducted to verify the reliability of the results. Approximate indicators of muscle mass, including trunk lean mass and appendicular lean mass, were used as outcome measures.
RESULTS AND CONCLUSION: The study found a negative correlation of low-density lipoprotein cholesterol and triglycerides with muscle mass, while no correlation was observed between high-density lipoprotein cholesterol and muscle mass. The results of the sensitivity analysis indicated a robust causal relationship. Using Mendelian randomization, this study provides evidence of a causal relationship between low-density lipoprotein cholesterol and triglycerides and muscle mass. This finding deepens our understanding of the effects of lipids on sarcopenia and has important clinical implications for the prevention and treatment of sarcopenia and osteoporosis.

Key words: sarcopenia, osteoporosis, Mendelian randomization, lipid metabolism, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglycerides, muscle mass

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