Rheumatoid arthritis and gastroesophageal reflux disease: a bidirectional and multivariable two-sample Mendelian randomization study

Aims/hypothesis: The association between gastroesophageal reflux disease (GERD) and rheumatoid arthritis (RA) has been reported by many observational studies in the Asian population. This study aimed to examine the bidirectional causal effects between GERD and RA by two-sample Mendelian randomizatio...

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Main Authors: Haifan Wang, Zhihao Chen, Xiaoqian Dang, Haoyu Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-12-01
Series:Frontiers in Genetics
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fgene.2023.1280378/full
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author Haifan Wang
Zhihao Chen
Xiaoqian Dang
Haoyu Wang
author_facet Haifan Wang
Zhihao Chen
Xiaoqian Dang
Haoyu Wang
author_sort Haifan Wang
collection DOAJ
description Aims/hypothesis: The association between gastroesophageal reflux disease (GERD) and rheumatoid arthritis (RA) has been reported by many observational studies in the Asian population. This study aimed to examine the bidirectional causal effects between GERD and RA by two-sample Mendelian randomization (MR) analyses using genetic evidence.Methods: Two-sample Mendelian randomization analyses were performed to determine the causal effect of GERD (129,080 cases vs. 602,604 control participants) on RA (6,236 cases vs. 147,221 control participants) and RA on GERD, respectively. The inverse-variance weighted (IVW) method was used as the primary analysis. Weighted median and MR-Egger regression were taken as supplementary analyses. Cochran’s Q test evaluated the heterogeneity. Horizontal pleiotropy was detected by estimating the intercept term of MR-Egger regression. Furthermore, multivariable MR analyses were performed to exclude the influence of confounding factors, including the years of schooling, BMI, and time spent watching television, between GERD and RA.Result: Both univariate MR (UVMR) and multivariable MR (MVMR) provided valid evidence that RA was causally and positively influenced by GERD (UVMR: OR = 1.49, 95% CI = 1.25–1.76, p = 6.18*10−6; MVMR: OR = 1.69, 95% CI = 1.24–2.31, p = 8.62*10−4), whereas GERD was not influenced by RA (UVMR: OR = 1.03, 95% CI = 1.00–1.06, p = 0.042; MVMR: OR = 1.04, 95% CI = 1.00–1.07, p = 0.0271).Conclusion: Our comprehensive bidirectional MR analysis found that for the European population, GERD can induce the occurrence of RA (OR = 1.69, p < 0.00125), whereas RA only has no significant influence on GERD. In particular, patients with GERD are suffering a 69% increased risk of RA occurrence, which means GERD is a substantial risk factor for RA.
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spelling doaj.art-c85f8b6cd3f0478fa4256d72b32164c12023-12-13T05:21:59ZengFrontiers Media S.A.Frontiers in Genetics1664-80212023-12-011410.3389/fgene.2023.12803781280378Rheumatoid arthritis and gastroesophageal reflux disease: a bidirectional and multivariable two-sample Mendelian randomization studyHaifan WangZhihao ChenXiaoqian DangHaoyu WangAims/hypothesis: The association between gastroesophageal reflux disease (GERD) and rheumatoid arthritis (RA) has been reported by many observational studies in the Asian population. This study aimed to examine the bidirectional causal effects between GERD and RA by two-sample Mendelian randomization (MR) analyses using genetic evidence.Methods: Two-sample Mendelian randomization analyses were performed to determine the causal effect of GERD (129,080 cases vs. 602,604 control participants) on RA (6,236 cases vs. 147,221 control participants) and RA on GERD, respectively. The inverse-variance weighted (IVW) method was used as the primary analysis. Weighted median and MR-Egger regression were taken as supplementary analyses. Cochran’s Q test evaluated the heterogeneity. Horizontal pleiotropy was detected by estimating the intercept term of MR-Egger regression. Furthermore, multivariable MR analyses were performed to exclude the influence of confounding factors, including the years of schooling, BMI, and time spent watching television, between GERD and RA.Result: Both univariate MR (UVMR) and multivariable MR (MVMR) provided valid evidence that RA was causally and positively influenced by GERD (UVMR: OR = 1.49, 95% CI = 1.25–1.76, p = 6.18*10−6; MVMR: OR = 1.69, 95% CI = 1.24–2.31, p = 8.62*10−4), whereas GERD was not influenced by RA (UVMR: OR = 1.03, 95% CI = 1.00–1.06, p = 0.042; MVMR: OR = 1.04, 95% CI = 1.00–1.07, p = 0.0271).Conclusion: Our comprehensive bidirectional MR analysis found that for the European population, GERD can induce the occurrence of RA (OR = 1.69, p < 0.00125), whereas RA only has no significant influence on GERD. In particular, patients with GERD are suffering a 69% increased risk of RA occurrence, which means GERD is a substantial risk factor for RA.https://www.frontiersin.org/articles/10.3389/fgene.2023.1280378/fullrheumatoid arthritisgastroesophageal reflux diseaseMendelian randomizationeducationBMI
spellingShingle Haifan Wang
Zhihao Chen
Xiaoqian Dang
Haoyu Wang
Rheumatoid arthritis and gastroesophageal reflux disease: a bidirectional and multivariable two-sample Mendelian randomization study
Frontiers in Genetics
rheumatoid arthritis
gastroesophageal reflux disease
Mendelian randomization
education
BMI
title Rheumatoid arthritis and gastroesophageal reflux disease: a bidirectional and multivariable two-sample Mendelian randomization study
title_full Rheumatoid arthritis and gastroesophageal reflux disease: a bidirectional and multivariable two-sample Mendelian randomization study
title_fullStr Rheumatoid arthritis and gastroesophageal reflux disease: a bidirectional and multivariable two-sample Mendelian randomization study
title_full_unstemmed Rheumatoid arthritis and gastroesophageal reflux disease: a bidirectional and multivariable two-sample Mendelian randomization study
title_short Rheumatoid arthritis and gastroesophageal reflux disease: a bidirectional and multivariable two-sample Mendelian randomization study
title_sort rheumatoid arthritis and gastroesophageal reflux disease a bidirectional and multivariable two sample mendelian randomization study
topic rheumatoid arthritis
gastroesophageal reflux disease
Mendelian randomization
education
BMI
url https://www.frontiersin.org/articles/10.3389/fgene.2023.1280378/full
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AT zhihaochen rheumatoidarthritisandgastroesophagealrefluxdiseaseabidirectionalandmultivariabletwosamplemendelianrandomizationstudy
AT xiaoqiandang rheumatoidarthritisandgastroesophagealrefluxdiseaseabidirectionalandmultivariabletwosamplemendelianrandomizationstudy
AT haoyuwang rheumatoidarthritisandgastroesophagealrefluxdiseaseabidirectionalandmultivariabletwosamplemendelianrandomizationstudy