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基于孟德尔随机化探讨二甲双胍与肌少症相关特征的关联



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          朱 岳 ,鞠营辉,杨玉莹,王梦琳,吴 睿 [中国科学技术大学附属第一医院离子医学中心(合肥离子医学
          中心),合肥 230088]

          中图分类号  R977.1+5;R969.3      文献标志码  A      文章编号  1001-0408(2024)22-2793-06
          DOI  10.6039/j.issn.1001-0408.2024.22.16

          摘  要  目的  探讨二甲双胍与肌少症相关特征的关联。方法  基于公开的全基因组关联研究相关数据库,利用与二甲双胍使用
          强相关的单核苷酸多态性位点作为工具变量,采用两样本孟德尔随机化(MR)分析方法[包括逆方差加权(IVW)法、MR-Egger回
          归法和加权中位数法]研究二甲双胍与肌少症3种相关特征(低握力、肌肉质量、步行速度)的关联。分别采用Cochran’s Q检验评
          估异质性、MR-Egger截距检验检测多效性、留一法进行敏感性分析。结果  IVW法分析结果显示,二甲双胍的使用可能与低握力
          风险增加(β=1.550,95%CI为0.389~2.711,P=0.009)和四肢肌肉质量减少(右腿瘦体重:β=-0.665,95%CI为-1.018~-0.312,
          P<0.001;左腿瘦体重:β=-0.710,95%CI 为-1.049~-0.371,P<0.001;右臂瘦体重:β=-0.471,95%CI 为-0.890~-0.053,
          P=0.027;左臂瘦体重:β=-0.463,95%CI为-0.865~-0.061,P=0.024)存在显著关联,但与步行速度无关。其他2种方法的结
          果或因果效应方向与之一致。Cochran’s Q检验提示本研究结果存在一定异质性;MR-Egger截距检验未发现水平多效性;敏感性
          分析提示本研究结果具有稳健性。结论  二甲双胍可能增加肌少症的风险。
          关键词  孟德尔随机化;二甲双胍;肌少症;低握力;肌肉质量;关联分析

          Investigation  of  the  relationship  between  metformin  and  sarcopenia-related  traits  based  on  Mendelian
          randomization
          ZHU Yue,JU Yinghui,YANG Yuying,WANG Menglin,WU Rui[Ion  Medical  Center  of  the  First  Affiliated
          Hospital of University of Science and Technology of China (Hefei Ion Medical Center), Hefei 230088, China]

          ABSTRACT   OBJECTIVE To investigate the relationship between metformin and sarcopenia-related traits. METHODS Based on
          the  data  from  publicly  genome-wide  association  study-related  databases,  using  single  nucleotide  polymorphisms  strongly  associated
          with  metformin  as  instrumental  variables,  the  two-sample  Mendelian  randomization (MR)  analysis  methods  [inverse  variance
          weighting (IVW) method, MR-Egger regression method and weighted median estimator method] were employed to investigate the
          relationship between metformin and three sarcopenia-related traits (low grip strength, muscle mass and walking speed). Cochran’s
          Q  test  was  used  to  assess  heterogeneity,  MR-Egger  intercept  test  was  used  to  detect  horizontal  pleiotropy,  and  leave-one-out
          analysis was performed for sensitivity analysis. RESULTS The results of IVW method showed that metformin use was significantly
          associated  with  an  increased  risk  of  low  grip  strength (β=1.550,  95%CI  was  0.389-2.711,  P=0.009)  and  reduced  limb  muscle
          mass (right  leg  lean  body  mass:  β =-0.665,  95%CI  was  -1.018--0.312,  P<0.001;  left  leg  lean  body  mass:  β =-0.710,
          95%CI was -1.049--0.371,P<0.001; right arm lean body mass: β=-0.471, 95%CI was -0.890--0.053, P=0.027; left arm
          lean body mass: β=-0.463, 95%CI was -0.865--0.061, P=0.024),but was not associated with walking speed. The results or
          causal  effects  of  the  other  two  methods  are  consistent  with  it. The  Cochran’s  Q  test  indicated  some  degree  of  heterogeneity  in  the
          result of this study. No horizontal pleiotropy was detected by the MR-Egger intercept test. The sensitivity analysis suggested that the
          results of this study were stable. CONCLUSIONS Metformin may increase the risk of sarcopenia.
          KEYWORDS    Mendelian randomization; metformin; sarcopenia; low grip strength; muscle mass; relationship analysis



              肌少症是一种与年龄有关的老年综合征,其特点是                         件,包括跌倒、功能丧失、身体虚弱,甚至死亡 。据报
                                                                                                     [2]
          肌肉质量减少、肌肉力量下降、身体机能减弱,几乎所有                          道,肌少症是全球老年人虚弱和残疾的主要原因;60~
          老年人都受到该病的影响 。肌少症会引发许多不良事                           70 岁人群的肌少症患病率为 6%~22%,而 80 岁以上人
                                [1]
             *第一作者 主管药师,硕士。研究方向:临床药理学。E-mail:                群的患病率高达50% 。尽管肌少症的病因尚不完全清
                                                                               [3]
          zywnmc@163.com
                                                             楚,但其潜在的分子机制可能涉及内在因素(如炎症、线
             # 通信作者 副主任药师,硕士。研究方向:临床药理学。电话:
          0551-65613921。E-mail:yckwurui@163.com              粒体功能障碍、氧化应激)和外部因素(如摄入热量减少


          中国药房  2024年第35卷第22期                                              China Pharmacy  2024 Vol. 35  No. 22    · 2793 ·
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