ArticleScientific reports2024
Dipeptide metabolite, glutamyl-glutamate mediates microbe-host interaction to boost spermatogenesis.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed.
- Food processing-derived carbon dots disrupt male fertility via the gut-testis axis.Science China. Life sciences · 2026Article
- Comparative Analysis of Gut Microbiota and Metabolome of Captive Male Malayan Pangolins with Normal and Abnormal Reproduction.Animals : an open access journal from MDPI · 2026Article
- Changes in sexual-function scores after washed microbiota transplantation in men with sexual dysfunction: an exploratory single-arm pre-post observational study.Frontiers in microbiology · 2026Article
- Exploring the mechanism of intestinal bacterial translocation after severe acute pancreatitis: the role of Toll-like receptor 5.Gut microbes · 2025Article
- Integrated profiling of semen microbiota and metabolome reveals dysregulation in primary idiopathic male infertility.Journal of translational medicine · 2025Article
- The Promising Biological Role of Postbiotics in Treating Human Infertility.Probiotics and antimicrobial proteins · 2025Review
- Article
Corrections and comments
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Authors and funding
15 authors.
Funding
Abstract
The decrease in sperm count and infertility is a global issue that remains unresolved. By screening environmental bacterial isolates, we have found that a novel lactic acid bacterium, Lactiplantibacillus plantarum SNI3, increased testis size, testosterone levels, sperm count, sexual activity and fertility in mice that have consumed the bacteria for four weeks. The abundance of L. plantarum in the colon microbiome was positively associated with sperm count. Fecal microbiota transplantation (FMT) from L. plantarum SNI3-dosed mice improved testicular functions in microbiome-attenuated recipient animals. To identify mediators that confer pro-reproductive effects on the host, untargeted in situ mass spectrometry metabolomics was performed on testis samples of L. plantarum SNI3-treated and control mice. Enrichment pathway analysis revealed several perturbed metabolic pathways in the testis of treated mice. Within the testis, a dipeptide, glutamyl-glutamate (GluGlu) was the most upregulated metabolite following L. plantarum SNI3 administration. To validate the pro-reproductive feature of GluGlu, systemic and local injections of the dipeptide have been performed. γ-GluGlu increased sperm count but had no effect on testosterone. These findings highlight the role of γ-GluGlu in mediating spermatogenetic effects of L. plantarum on the male mouse host and -following relevant human clinical trials- may provide future tools for treating certain forms of male infertility.
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Registered trials
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