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临床医药

基于孟德尔随机化研究肠道菌群与血管衰老的因果关系

  • 杨虹志
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  • 1.首都医科大学附属北京中医医院,北京 100010;
    2.首都医科大学附属北京世纪坛医院,北京 100038
黄凤,女,博士,副主任医师,研究方向:针灸治疗优势病种的临床与基础研究

收稿日期: 2026-05-20

  修回日期: 2026-07-02

  录用日期: 2026-08-13

  网络出版日期: 2026-08-17

基金资助

国家自然科学基金青年项目(81503580);北京市医院管理中心“培育计划”(PZ2024018);北京市医院管理局专项经费资助“青苗”人才项目(QML20171002);北京市教育委员会科技发展计划一般项目(KM201710025023)

Causal Relationship Between Gut Microbiota and Vascular Aging A Mendelian Randomization Study

  • 111 111 111
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  • 1.Beijing Hospital of Traditional Chinese Medicine Capital Medical University Beijing 100010, China
    2.Beijing Shijitan Hospital Capital Medical University Beijing 100038, China

Received date: 2026-05-20

  Revised date: 2026-07-02

  Accepted date: 2026-08-13

  Online published: 2026-08-17

摘要

目的:采用孟德尔随机化(MR)研究方法探究肠道菌群与血管衰老(VA)的潜在因果关系,旨在为临床治疗血管衰老提供遗传学因果证据。方法:采用来自MiBio Gen联盟的肠道微生物群的全基因组关联研究(GWAS)汇总统计数据作为暴露变量,再利用GWAS公共数据进行双样本MR分析,探讨肠道菌群与血管衰老之间的关系。分别采用逆方差加权法(IVW)、MR-Egger回归、加权中位数(WME3种分析方法进行MR分析,以效应指标优势比(OR)和95%置信区间(CI)评价因果关系。同时,采用MR-Egger 截距法、留一法、MR-PRESSO法进行多效性检验、敏感性分析和离群值检测,以保证研究结果的可靠性。结果:IVW分析结果显示,厌氧棍状菌属(Anaerotruncus)(OR=0.965P=0.04495%CI0.931~0.999)和颤杆菌属(Oscillibacter)(OR=0.969P=0.04895%CI0.939~1.000)、链球菌属(Streptococcus)(OR=0.971P=0.04695%CI0.943~1.000)、瘤胃梭菌属9群(Ruminiclostridium 9)(OR=0.956P=0.02295%CI0.920~0.994)、瘤胃球菌科UCG014群(Ruminococcaceae UCG014)(OR=0.963P=0.02795%CI0.931~0.996)这5种菌群被认为是保护因素。相反,解黄酮菌属(Flavonifractor)(OR=1.057P=0.00695%CI1.016~1.100)、木聚糖嗜真杆菌群(Eubacterium xylanophilum group)(OR=1.044P=0.03295%CI1.004~1.087)和瘤胃球菌科UCG002群(Ruminococcaceae UCG002)(OR=1.036P=0.01095%CI1.009~1.064)被认为是潜在的风险因素。结论:肠道菌群与血管衰老之间存在潜在联系,为“肠-血管轴”理论提供了坚实的遗传学因果证据,并指明了具有潜在干预价值的特定微生物靶点。

 

本文引用格式

杨虹志 .

基于孟德尔随机化研究肠道菌群与血管衰老的因果关系

[J]. 中国医药导刊, 2026 , 28(6) : 667 -667-673 . DOI: 10.1009-0959.2026.080003

Abstract

Objective: To explore the potential causal relationship between gut microbiota and vascular aging VA using Mendelian randomization MR analysisto provide genetic causal evidence for the clinical treatment of vascular aging.Methods: Summary statistics from genome-wide association studies GWAS of gut microbiota in the MiBioGen consortium were used as exposure variables. Two-sample MR analysis was performed using public GWAS data to investigate the association between gut microbiota and vascular aging. Three analytical methods namely inverse variance weighting IVW), MR-Egger regression and weighted median estimator WME), were applied to assess causal relationships with odds ratios OR and 95% confidence intervals CI as effect indicators. Egger intercept test leave-one-out analysis and MR-PRESSO were used for pleiotropy testing sensitivity analysis and outlier detection to ensure the reliability of the results.Results: IVW analysis identified five genera as protective factors against vascular agingAnaerotruncus OR=0.965P=0.044 95%CI 0.931-0.999), Oscillibacter OR=0.969P=0.048 95%CI 0.939-1.000), Streptococcus OR=0.971P=0.046 95%CI 0.943-1.000), Ruminiclostridium 9 OR=0.956P=0.022 95%CI 0.920-0.994), and Ruminococcaceae UCG014 OR=0.923P=0.027 95%CI 0.931-0.996. Conversely three genera were identified as potential risk factorsFlavonifractor OR=1.057P=0.006 95%CI 1.016-1.100), Eubacterium xylanophilum group OR=1.044P=0.032 95%CI 1.004-1.087), and Ruminococcaceae UCG002 OR=1.036P=0.010 95%CI 1.009-1.064.Conclusion: A potential causal association exists between gut microbiota and vascular aging. This study provides robust genetic evidence supporting the "gut-vascular axis" theory and identifies specific microbial targets with potential intervention value.


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