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Related Experiment Videos

Bacterial infection and semen quality.

D Sanocka-Maciejewska1, M Ciupińska, M Kurpisz

  • 1Institute of Human Genetics, Polish Academy of Sciences, Ul. Strzeszyńska 32, 61-049 Poznań, Poland.

Journal of Reproductive Immunology
|August 23, 2005
PubMed
Summary

Genital tract infections significantly impair male fertility by reducing semen volume, sperm count, motility, and morphology. Specific bacteria like E. coli negatively impact sperm reproductive potential.

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Area of Science:

  • Reproductive Medicine
  • Andrology
  • Microbiology

Background:

  • Genital tract infection (GTI) is a potential cause of male infertility.
  • Understanding the impact of GTI on semen parameters is crucial for diagnosis and treatment.

Purpose of the Study:

  • To evaluate the effect of genital tract infection on semen quality in infertile males.
  • To identify specific bacterial pathogens associated with reduced sperm reproductive potential.

Main Methods:

  • Analysis of semen parameters (volume, concentration, motility, morphology, vitality) in infertile males with GTI (n=39) and without GTI (n=14).
  • Comparison with healthy controls (n=30).
  • GTI diagnosis based on leukocytes and bacterial identification (Bio-Merieux tests).

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Main Results:

  • Infertile males with GTI showed significantly poorer semen volume, sperm concentration, motility, morphology, and vitality compared to healthy controls.
  • Presence of Escherichia coli, Ureaplasma urealyticum, and Staphylococcus aureus was associated with a statistically significant negative impact on sperm reproductive potential.

Conclusions:

  • Genital tract infection adversely affects multiple semen parameters, contributing to male infertility.
  • Specific bacterial infections, including E. coli, U. urealyticum, and S. aureus, are detrimental to sperm function and reproductive capacity.