Related Experiment Video
Updated: Aug 13, 2025
06:28
Vessel-Sparing Microsurgical Longitudinal Intussusception Vasoepididymostomy to Treat Epididymal Obstructive Azoospermia
Published on: May 27, 2022
3.8K
Characterization of Non-Obstructive Azoospermia in Men Using Gut Microbial Profiling.
Yalei Cao1, Haojie Wang2, Zirun Jin1
1Department of Urology, Peking University Third Hospital, Beijing 100191, China.
Journal of Clinical Medicine
|January 21, 2023
Summary
The gut microbiome differs significantly in men with non-obstructive azoospermia (NOA), impacting metabolism and correlating with clinical factors. This discovery aids in understanding NOA
Area of Science:
- Microbiology
- Genetics
- Urology
Background:
- Non-obstructive azoospermia (NOA) is a complex condition with largely unknown causes.
- Understanding the etiological factors of NOA is crucial for effective clinical management.
Purpose of the Study:
- To investigate the association between gut microbial composition and NOA.
- To identify specific microbial alterations and their functional implications in NOA patients.
Main Methods:
- Shotgun metagenomic sequencing was employed for gut microbial profiling.
- Comprehensive clinical data from NOA patients and controls were analyzed.
- Correlation analysis was performed between microbial species and clinical parameters.
Main Results:
- Significant differences in gut microbial alpha and beta diversity were observed between NOA patients and controls.
- Specific bacterial species like *Bacteroides vulgatus* were more abundant in NOA, while others were enriched in controls.
- Altered microbial pathways in NOA included suppressed carbohydrate metabolism and enhanced amino acid and methane metabolism.
- Microbial interplay and correlations with clinical factors (age, BMI, hormones) were significant in NOA.
Conclusions:
- The gut microbiota composition and function are altered in non-obstructive azoospermia.
- These findings suggest a role for gut microbiota in NOA pathogenesis.
- Microbiota profiling may offer potential for clinical management strategies in NOA.
