Causal relationship between gut microbiota and male erectile dysfunction: a Mendelian randomization analysis

Area of Science:

• Microbiome research
• Human health
• Genetics

Background:

• Observational studies suggest a link between gut microbiota and male erectile dysfunction (ED).
• A causal relationship between gut microbiota and male ED remains unclear.
• Investigating this link is crucial for understanding ED etiology and treatment.

Purpose of the Study:

• To determine the potential causal relationship between gut microbiota and male ED.
• To utilize Mendelian randomization (MR) analysis for robust causal inference.
• To identify specific gut microbial taxa associated with ED risk.

Main Methods:

• A two-sample Mendelian randomization (MR) analysis was performed.
• Genome-wide association studies (GWAS) data for gut microbiota (MiBioGen) and male ED (OPEN GWAS) were utilized.
• Sensitivity analyses (Cochran's Q, MR-Egger, MR-PRESSO, leave-one-out) were conducted to assess heterogeneity and pleiotropy.

Main Results:

• A negative causal association was found between Ruminococcaceae UCG013 and male ED.
• Lachnospiraceae family, Lachnospiraceae NC2004 group, Oscillibacter, and Tyzzerella3 were associated with increased male ED risk.
• Sensitivity analyses supported the reliability of the findings.

Conclusions:

• The study confirms a causal relationship between specific gut microbiota and male ED.
• Findings offer insights into the role of the gut microbiome in ED development and potential therapeutic targets.
• This research may inform future strategies for managing and treating male ED.