Characteristics of gut microbiota in patients with asthenozoospermia: a Chinese pilot study

March 18, 2025

  • Women’s Health
    Women’s Health

    Women’s health, a vital aspect of medical science, encompasses various conditions unique to women’s physiological makeup. Historically, women were often excluded from clinical research, leading to a gap in understanding the intricacies of women’s health needs. However, recent advancements have highlighted the significant role that the microbiome plays in these conditions, offering new insights and potential therapies. MicrobiomeSignatures.com is at the forefront of exploring the microbiome signature of each of these conditions to unravel the etiology of these diseases and develop targeted microbiome therapies.

Last Updated: 2024

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Karen Pendergrass

Karen Pendergrass is a microbiome researcher specializing in microbiome-targeted interventions (MBTIs). She systematically analyzes scientific literature to identify microbial patterns, develop hypotheses, and validate interventions. As the founder of the Microbiome Signatures Database, she bridges microbiome research with clinical practice. In 2012, based on her own investigative research, she became the first documented case of FMT for Celiac Disease—four years before the first published case study.

What was studied?

The study investigated the characteristics of gut microbiota in patients with asthenozoospermia (AS), a common cause of male infertility characterized by reduced sperm motility. It aimed to identify differences in gut microbiota composition between AS patients and healthy controls and explore the potential links between gut microbiota and the development of AS.

 

Who was studied?

The study involved 108 men, including 60 patients diagnosed with isolated AS and 48 healthy men serving as controls. These participants were recruited from the outpatient department of Tianjin Medical University General Hospital. Men with AS were compared against healthy controls with normal semen parameters.

 

What were the most important findings?

Diversity and Composition: AS patients exhibited significantly lower alpha diversity in their gut microbiota and distinct beta diversity compared to healthy controls. Specific bacteria such as Escherichia_Shigella and various members of the Prevotellaceae family were notably different between the groups.

Correlation with Sperm Mobility: Certain key genera identified were negatively correlated with sperm motility parameters in AS patients, suggesting a potential impact of these microbial communities on sperm function.

Predicted Metabolic Pathways: The study predicted significant differences in metabolic pathways such as steroid biosynthesis and meiosis, potentially influencing the physiological processes related to sperm motility and overall reproductive health.

 

What are the greatest implications of this study?

The findings suggest that gut microbiota dysbiosis might be linked to the development of asthenozoospermia, possibly through effects on systemic inflammation, nutrient synthesis, and hormonal balance. This could lead to new diagnostic and therapeutic approaches, where modulation of gut microbiota could become part of treating or managing male infertility. The study supports the concept of the gut-testis axis, highlighting the broader systemic impact of gut health. Future research could focus on confirming these findings and exploring gut microbiota modification as a therapeutic strategy for AS.

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