Genetically predicted allergic rhinitis causally increases the risk of erectile dysfunction

Area of Science:

• Urology
• Immunology
• Genetics

Background:

• Allergic rhinitis (AR) is increasingly recognized as a potential risk factor for erectile dysfunction (ED).
• Understanding the etiological relationship between AR and ED is crucial for developing targeted therapeutic strategies.

Purpose of the Study:

• To investigate the potential causal relationship between allergic rhinitis and erectile dysfunction using a robust Mendelian randomization approach.
• To assess whether genetic predisposition to AR influences the risk of developing ED.

Main Methods:

• A two-sample Mendelian randomization analysis was conducted using genome-wide association study (GWAS) summary data for AR and ED.
• Inverse variance weighted (IVW), MR-Egger, and weighted median (WM) methods were employed to estimate the causal effect.
• Sensitivity analyses, including MR-Egger regression, MR-PRESSO, Cochran's Q test, and leave-one-out analysis, were performed to assess pleiotropy and heterogeneity.

Main Results:

• The IVW analysis revealed a significant positive association between genetic liability to AR and an increased risk of ED (OR = 1.40, p = 0.01).
• Consistent findings were observed across MR-Egger and WM analyses, supporting the primary result.
• Sensitivity analyses confirmed the robustness of the findings, with no significant evidence of heterogeneity or horizontal pleiotropy.

Conclusions:

• This study provides strong genetic evidence supporting a causal association between allergic rhinitis and erectile dysfunction.
• The findings suggest that individuals with a genetic predisposition to AR are at a higher risk of developing ED.