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Association between autoimmune diseases and male reproductive health: A mendelian randomization study.
Article in Science progress. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
5 authors.
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Abstract
ObjectiveThe relationship between autoimmune diseases (ADs) and male reproductive health is easily neglected. Epidemiological studies indicated that multiple ADs may adversely affect male reproductive health. This study aimed to explore the causal relationship between ADs and erectile dysfunction (ED), abnormal spermatozoa, and sex hormones using Mendelian randomization (MR) analysis.MethodsWe selected 12 common ADs as exposures, with outcomes including ED, abnormal spermatozoa, and sex hormones. The selection of instrumental variables was based on summary statistics from European GWAS studies. A combination of multiple methods was performed for MR analysis of the above data, with the inverse-variance weighted method being the main method. We also conducted several sensitivity analyses to verify the reliability of the results.ResultsInflammatory bowel disease (IBD) and Crohn's disease (CD) were associated with an increased risk of ED (IBD, OR: 1.101, 95% CI: 1.016-1.194, P = 0.019; CD, OR: 1.086, 95% CI: 1.012-1.165, P = 0.022). Asthma was positively causally related to abnormal spermatozoa (OR: 1.270, 95% CI: 1.045-1.545, P = 0.017), but negatively causally related to total testosterone (β: -0.042, 95% CI: -0.057 - -0.027, P < 0.001). Detection of sensitivity analysis supported findings related to ED and abnormal spermatozoa.ConclusionCurrent genetic evidence suggested a potential causal effect of IBD and CD on the risk of ED. Furthermore, genetic liability to asthma was associated with abnormal spermatozoa and decreased total testosterone levels. Our results contributed to targeted prevention and management of these conditions, ultimately promoting male reproductive health.
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