Abstract
ABSTRACT Background Prior research has shown a positive association of pseudoexfoliative glaucoma (PXG) in patients with non-melanoma skin cancer (NMSC), likely due to an increase in ultraviolet exposure associated with both. However, the role of NMSC as a genetic risk factor for PXG has not been examined. Thus, the goal of this study is to utilize Mendelian randomization with genome-wide association studies to evaluate for genetic causality while controlling for environmental confounders. Methods We conducted a MR using the inverse variance weighted method (MR-IVW) as our primary analysis. Genomic data was sourced from GWASs for patients with NMSC (10,382 cases, 208,410 controls) and PXG (1,515 cases and 210,201 controls), originating from the FinnGen Biobank. Results Despite previous association of history of NMSC with occurrence of PXG, we found no evidence for a causal association between SNPs associated with NMSC and risk of PXG following MR analysis (MR-IVW, odds ratio (OR): 0.98, 95% CI: 0.85-1.14, P = 0.87). Conclusion Here, we found no evidence for a causal association between SNPs associated with NMSC and the risk of PXG following a MR analysis.
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