Aging & Longevity

Relative Telomere Length in Leukocytes as a Potential Biomarker of Male Idiopathic Infertility.

TL;DR

Men with idiopathic infertility exhibited a significantly shorter relative telomere length reduced by approximately 40% in comparison with fertile controls, suggesting ongoing genomic instability likely driven by oxidative stress-mediated DNA damage.

Key Findings

Men with idiopathic infertility had significantly shorter relative telomere length in peripheral blood leukocytes compared to fertile controls.

  • Relative telomere length was reduced by approximately 40% in men with idiopathic infertility compared to fertile controls.
  • The difference was statistically significant (p < 0.05).
  • Telomere length was measured in peripheral blood leukocytes using genomic DNA extracted from whole venous blood samples.
  • A retrospective analysis was conducted on data from men in infertile couples, with a subgroup diagnosed with idiopathic infertility identified.
  • A control group of apparently healthy fertile men with proven reproductive function was established for comparison.

Telomere shortening in men with idiopathic infertility suggests ongoing genomic instability likely driven by oxidative stress-mediated DNA damage.

  • The authors attributed the observed telomere shortening to 'ongoing genomic instability, likely driven by oxidative stress-mediated DNA damage.'
  • Relative telomere length in leukocytes is presented as a potential biomarker of male reproductive health.
  • The authors noted that 'current evidence regarding its role in idiopathic infertility remains limited.'
  • The findings highlight the need for further research to elucidate molecular mechanisms governing telomere dynamics in male infertility.

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Citation

Kurashova N, Dashiev B, Kolesnikov S, Kolesnikova L. (2026). Relative Telomere Length in Leukocytes as a Potential Biomarker of Male Idiopathic Infertility.. Bulletin of experimental biology and medicine. https://doi.org/10.1007/s10517-026-06586-0