| Title: | MR-PheWAS: exploring the causal effect of SUA level on multiple disease outcomes by using genetic instruments in UK Biobank |
| Journal: | Annals of the Rheumatic Diseases |
| Published: | 6 Feb 2018 |
| Pubmed: | https://pubmed.ncbi.nlm.nih.gov/29437585/ |
| DOI: | https://doi.org/10.1136/annrheumdis-2017-212534 |
| URL: | https://ard.bmj.com/content/annrheumdis/77/7/1039.full.pdf |
Publication 13730
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Abstract
OBJECTIVES: We aimed to investigate the role of serum uric acid (SUA) level in a broad spectrum of disease outcomes using data for 120 091 individuals from UK Biobank.</p>
METHODS: We performed a phenome-wide association study (PheWAS) to identify disease outcomes associated with SUA genetic risk loci. We then implemented conventional Mendelianrandomisation (MR) analysis to investigate the causal relevance between SUA level and disease outcomes identified from PheWAS. We next applied MR Egger analysis to detect and account for potential pleiotropy, which conventional MR analysis might mistake for causality, and used the HEIDI (heterogeneity in dependent instruments) test to remove cross-phenotype associations that were likely due to genetic linkage.</p>
RESULTS: Our PheWAS identified 25 disease groups/outcomes associated with SUA genetic risk loci after multiple testing correction (P<8.57e-05). Our conventional MR analysis implicated a causal role of SUA level in three disease groups: inflammatory polyarthropathies (OR=1.22, 95% CI 1.11 to 1.34), hypertensive disease (OR=1.08, 95% CI 1.03 to 1.14) and disorders of metabolism (OR=1.07, 95% CI 1.01 to 1.14); and four disease outcomes: gout (OR=4.88, 95% CI 3.91 to 6.09), essential hypertension (OR=1.08, 95% CI 1.03 to 1.14), myocardial infarction (OR=1.16, 95% CI 1.03 to 1.30) and coeliac disease (OR=1.41, 95% CI 1.05 to 1.89). After balancing pleiotropic effects in MR Egger analysis, only gout and its encompassing disease group of inflammatory polyarthropathies were considered to be causally associated with SUA level. Our analysis highlighted a locus (ATXN2/S2HB3) that may influence SUA level and multiple cardiovascular and autoimmune diseases via pleiotropy.</p>
CONCLUSIONS: Elevated SUA level is convincing to cause gout and inflammatory polyarthropathies, and might act as a marker for the wider range of diseases with which it associates. Our findings support further investigation on the clinical relevance of SUA level with cardiovascular, metabolic, autoimmune and respiratory diseases.</p>
20 Keywords
- Adult
- Arthritis
- Autoimmune Diseases
- Biological Specimen Banks
- Celiac Disease
- Female
- Genetic Predisposition to Disease
- Genome-Wide Association Study
- Gout
- Humans
- Hypertension
- Male
- Mendelian Randomization Analysis
- Middle Aged
- Multimorbidity
- Myocardial Infarction
- Prognosis
- Risk Assessment
- United Kingdom
- Uric Acid
16 Authors
- Xue Li
- Xiangrui Meng
- Athina Spiliopoulou
- Maria Timofeeva
- Wei-Qi Wei
- Aliya Gifford
- Xia Shen
- Yazhou He
- Tim Varley
- Paul McKeigue
- Ioanna Tzoulaki
- Alan F Wright
- Peter Joshi
- Joshua C Denny
- Harry Campbell
- Evropi Theodoratou
1 Application
| Application ID | Title |
|---|---|
| 10775 | Phenome-wide association study (PheWAS) for the investigation of the associations between serum vitamin D levels and multiple health outcomes |
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