Detecting potential causal relationship between inflammatory bowel disease and rosacea using bi-directional Mendelian randomization

Abstract The association between rosacea and inflammatory bowel disease (IBD) has been studied in previous observational studies. It is unclear, however, whether the association is causal or not. Independent genetic variants for IBD were chosen as instruments from published Genome-wide association s...

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Main Authors: Min Li, Si Xian He, Yuan Xiong He, Xiao Han Hu, Zhou Zhou
Format: Article
Language:English
Published: Nature Portfolio 2023-09-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-42073-6
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author Min Li
Si Xian He
Yuan Xiong He
Xiao Han Hu
Zhou Zhou
author_facet Min Li
Si Xian He
Yuan Xiong He
Xiao Han Hu
Zhou Zhou
author_sort Min Li
collection DOAJ
description Abstract The association between rosacea and inflammatory bowel disease (IBD) has been studied in previous observational studies. It is unclear, however, whether the association is causal or not. Independent genetic variants for IBD were chosen as instruments from published Genome-wide association studies (GWAS) studies involving 38,155 cases with an IBD diagnosis and 48,485 controls in order to investigate the causal effect of IBD on rosacea. Summarized data for rosacea were gathered from various GWAS studies that included 1195 cases and 211,139 controls without rosacea. Reverse-direction Mendelian randomization (MR) analysis was done to investigate the relationship between genetically proxied rosacea and IBD. With the use of the inverse variance-weighted (IVW), MR-Egger, and weighted median approaches, a 2-sample Mendelian randomization study was carried out. Analysis of heterogeneity and sensitivity was performed to examine the pleiotropy and robustness of effect estimates. The forward-direction of the MR study was to reveal that genetic predisposition to IBD including its two main subtypes: Crohn’s disease (CD) and ulcerative colitis (UC) was associated with an increased risk of rosacea. The reverse-direction MR analyses did not demonstrate that a genetic predisposition to rosacea was associated with total IBD, UC and CD. Our findings provided evidence for a causal impact of IBD, UC, and CD on rosacea, but not vice versa. The elevated incidence of rosacea in patients with IBD should be recognized by doctors to make an early diagnosis and initiate specialized therapy.
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spelling doaj.art-8b6b6b2afede4fff9aa08617df11eee62023-11-19T12:56:17ZengNature PortfolioScientific Reports2045-23222023-09-011311910.1038/s41598-023-42073-6Detecting potential causal relationship between inflammatory bowel disease and rosacea using bi-directional Mendelian randomizationMin Li0Si Xian He1Yuan Xiong He2Xiao Han Hu3Zhou Zhou4Department of Dermatology, People’s Liberation Army The General Hospital of Western Theater CommandDepartment of Dermatology, People’s Liberation Army The General Hospital of Western Theater CommandDepartment of Dermatology, People’s Liberation Army The General Hospital of Western Theater CommandDepartment of Dermatology, People’s Liberation Army The General Hospital of Western Theater CommandDepartment of Dermatology, People’s Liberation Army The General Hospital of Western Theater CommandAbstract The association between rosacea and inflammatory bowel disease (IBD) has been studied in previous observational studies. It is unclear, however, whether the association is causal or not. Independent genetic variants for IBD were chosen as instruments from published Genome-wide association studies (GWAS) studies involving 38,155 cases with an IBD diagnosis and 48,485 controls in order to investigate the causal effect of IBD on rosacea. Summarized data for rosacea were gathered from various GWAS studies that included 1195 cases and 211,139 controls without rosacea. Reverse-direction Mendelian randomization (MR) analysis was done to investigate the relationship between genetically proxied rosacea and IBD. With the use of the inverse variance-weighted (IVW), MR-Egger, and weighted median approaches, a 2-sample Mendelian randomization study was carried out. Analysis of heterogeneity and sensitivity was performed to examine the pleiotropy and robustness of effect estimates. The forward-direction of the MR study was to reveal that genetic predisposition to IBD including its two main subtypes: Crohn’s disease (CD) and ulcerative colitis (UC) was associated with an increased risk of rosacea. The reverse-direction MR analyses did not demonstrate that a genetic predisposition to rosacea was associated with total IBD, UC and CD. Our findings provided evidence for a causal impact of IBD, UC, and CD on rosacea, but not vice versa. The elevated incidence of rosacea in patients with IBD should be recognized by doctors to make an early diagnosis and initiate specialized therapy.https://doi.org/10.1038/s41598-023-42073-6
spellingShingle Min Li
Si Xian He
Yuan Xiong He
Xiao Han Hu
Zhou Zhou
Detecting potential causal relationship between inflammatory bowel disease and rosacea using bi-directional Mendelian randomization
Scientific Reports
title Detecting potential causal relationship between inflammatory bowel disease and rosacea using bi-directional Mendelian randomization
title_full Detecting potential causal relationship between inflammatory bowel disease and rosacea using bi-directional Mendelian randomization
title_fullStr Detecting potential causal relationship between inflammatory bowel disease and rosacea using bi-directional Mendelian randomization
title_full_unstemmed Detecting potential causal relationship between inflammatory bowel disease and rosacea using bi-directional Mendelian randomization
title_short Detecting potential causal relationship between inflammatory bowel disease and rosacea using bi-directional Mendelian randomization
title_sort detecting potential causal relationship between inflammatory bowel disease and rosacea using bi directional mendelian randomization
url https://doi.org/10.1038/s41598-023-42073-6
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