Cited by 10Inflammatory Bowel DiseaseGenetic Associations and EpidemiologyMultiple Sclerosis Research Studies

Causal associations between inflammatory bowel disease and anxiety: A bidirectional Mendelian randomization study

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He, Ying, Chen, Chun-Lan, He, Jian, Liu, Si-De·2023·World Journal of Gastroenterology

Abstract

BACKGROUND Anxiety is common in patients with inflammatory bowel disease (IBD), including those with ulcerative colitis (UC) and Crohn’s disease (CD); however, the causal relationship between IBD and anxiety remains unknown. AIM To investigate the causal relationship between IBD and anxiety by using bidirectional Mendelian randomization analysis. METHODS Single nucleotide polymorphisms retrieved from genome-wide association studies (GWAS) of the European population were identified as genetic instrument variants. GWAS statistics for individuals with UC (6968 patients and 20464 controls; adults) and CD (5956 patients and 14927 controls; adults) were obtained from the International IBD Genetics Consortium. GWAS statistics for individuals with anxiety were obtained from the Psychiatric Genomics Consortium (2565 patients and 14745 controls; adults) and FinnGen project (20992 patients and 197800 controls; adults), respectively. Inverse-variance weighted was applied to assess the causal relationship, and the results were strengthened by heterogeneity, pleiotropy and leave-one-out analyses. RESULTS Genetic susceptibility to UC was associated with an increased risk of anxiety [odds ratio: 1.071 (95% confidence interval: 1.009-1.135), P = 0.023], while genetic susceptibility to CD was not associated with anxiety. Genetic susceptibility to anxiety was not associated with UC or CD. No heterogeneity or pleiotropy was observed, and the leave-one-out analysis excluded the potential influence of a particular variant. CONCLUSION This study revealed that genetic susceptibility to UC was significantly associated with anxiety and highlighted the importance of early screening for anxiety in patients with UC.

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Authors
He, Y., Chen, C.-L., He, J., & Liu, S.-D.
Affiliations
  • Nanfang Hospital (CN)
  • Guangdong Academy of Medical Sciences (CN)
Venue
World Journal of Gastroenterology
Published
2023-11-28
Volume
29
Issue
44
Pages
5872-5881
ISSN
1007-9327 (ISSN-L)
OpenAlex
W4389055095
Cited by
10
References
50
Citations by year
2025: 5 · 2024: 5
FWCI
1.66
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • World Journal of Gastroenterology (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Funders
  • Research Manitoba
  • Crohn's and Colitis Canada
  • Canadian Institutes of Health Research (135234_1, 333252)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Inflammatory Bowel Disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
Keywords
inflammatory bowel disease, anxiety, ulcerative colitis, Crohn's disease, bidirectional causality, genetic susceptibility, single nucleotide polymorphisms, anxiety screening, psychosocial comorbidity
MeSH terms
Adult, Anxiety, Colitis, Ulcerative, Crohn Disease, Humans, Inflammatory Bowel Diseases, Genetic Predisposition to Disease, Genome-Wide Association Study, Mendelian Randomization Analysis

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