1. Is Genetic Risk for Sleep Apnea Causally Linked With Glaucoma Susceptibility?
- Author
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Ingold N, Campos AI, Han X, Ong JS, Gharahkhani P, Mackey DA, Rentería ME, Law MH, and MacGregor S
- Subjects
- Eye Proteins metabolism, Genetic Predisposition to Disease, Glaucoma etiology, Humans, Risk Factors, Eye Proteins genetics, Genome-Wide Association Study methods, Glaucoma genetics, Mendelian Randomization Analysis methods, Polymorphism, Single Nucleotide, Sleep Apnea Syndromes complications
- Abstract
Purpose: Observational studies have suggested that individuals with pre-existing sleep apnea (SA) have up to double the risk of developing glaucoma than individuals without SA. Understanding risk factors for glaucoma is important to assist with well-structured screening, early intervention, and efficient allocation of specialist consultation. The objective of this study is therefore to use genetic data to determine whether SA is a causal risk factor for glaucoma., Methods: Two-sample Mendelian randomization (MR) analyses were performed to assess the association between genetically predicted SA and glaucoma susceptibility using genome-wide association study (GWAS) of 25,062 SA cases, 313,372 controls derived from 23andMe and summary data from a glaucoma GWAS meta-analysis (20,582 cases, 119,318 controls), including individuals of European descent, mainly from the UK Biobank., Results: Inverse variance weighted regression of genetic susceptibility for SA on risk of glaucoma revealed no strong evidence for an association between SA and glaucoma (OR = 0.95, 95% confidence intervals = 0.84-1.07), results were consistent across all MR predictors., Conclusions: We found little genetic evidence supporting a causal association between SA and glaucoma. Our results refute the possibility of a large effect (glaucoma OR > 1.5 per doubling of odds on SA) between SA and glaucoma.
- Published
- 2022
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