ArticleScientific reports2024
Intratesticular creatine maintains spermatogenesis by defining tight junctions.
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 6 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
6 citing papers in PubMed.
- Dietary arginine modulates growth performance and testicular development across life stages in male swimming crab (Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2026Article
- Creatine monohydrate modulates testicular morphology and SOD1/NFκB-p65 immunoexpression in streptozotocin-induced diabetic rats.Journal of molecular histology · 2026Article
- Creatine kinase regulates energy metabolism and growth of trophoblasts.bioRxiv : the preprint server for biology · 2026Article
- Exploring the knowledge, attitudes, and perceptions of young men towards fertility in the UK: A cross-sectional survey.PloS one · 2026Article
- The synergic impact of decellularized testis scaffold and extracellular vesicles derived from human semen on spermatogonial stem cell survival and differentiation.Biomedical engineering online · 2025Article
- Association between dietary creatine intake and serum biomarkers of spermatogenesis in males aged 12 years and older.Reproduction & fertility · 2025Article
Corrections and comments
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Authors and funding
9 authors.
Funding
Abstract
One in five couples who wish to conceive is infertile, and half of these couples have male infertility. However, the causes of male infertility are still largely unknown. Creatine is stored in the body as an energy buffer, and the testes are its second-largest reservoir after muscles. Further, even though intratesticular creatine levels have long been known to decrease in male patients with infertility, its role in the testis is unknown. We investigated the intratesticular role of creatine, specifically in the context of the creatine synthesizing enzyme Gamt, and the creatine transporter Slc6a8. The Slc6a8 knockout mice showed no abnormalities in spermatogenesis. While Gamt knockout mice formed spermatozoa, they demonstrated reduced sperm count and decreased sperm motility and fertilization rate. Additionally, intratesticular creatine in Gamt knockout mice was significantly decreased, resulting in the disruption of tight junctions, which could be rectified by creatine supplementation, as was evidenced by the improved sperm count and fertilization rate in these mice. In conclusion, we identified creatine as being required for the maintenance of the tight junction in the testis.
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