Related Experiment Video
Updated: May 4, 2026
05:11
Grade III Varicocele Surgical Treatment using Spermatic Vein-Superficial Abdominal Vein Shunt
Published on: August 23, 2024
292
Short and long-term effects of experimental varicocele
Aram Minas1, Dunia Waked2, Valter Luiz Maciel Júnior1
1Department of Surgery, Division of Urology, Human Reproduction Section, São Paulo Federal University, São Paulo, Brazil.
Andrology
|January 14, 2025
Summary
Varicocele negatively impacts male fertility by reducing sperm quality and function. However, prolonged varicocele duration did not worsen these effects in this rat study.
Area of Science:
- Reproductive Biology
- Andrology
- Experimental Medicine
Background:
- Varicocele is a known cause of male infertility.
- The impact of varicocele duration on sperm function remains unclear.
Purpose of the Study:
- To investigate the time-dependent effects of experimental varicocele on spermatogenesis and sperm quality.
- To assess varicocele's impact on sperm functional parameters over time.
Main Methods:
- Wistar rats were subjected to sham or varicocele procedures for 2 or 4 months.
- Sperm concentration, motility, morphology, viability, mitochondrial activity, acrosome integrity, and DNA fragmentation were analyzed.
- Testicular histology and Johnsen's score were evaluated.
Main Results:
- Varicocele groups showed decreased Johnsen score, sperm count, motility, viability, morphology, and mitochondrial activity.
- Increased acrosome damage and DNA fragmentation were observed in varicocele groups.
- No significant differences in sperm parameters were found between 2-month and 4-month varicocele groups.
Conclusions:
- Experimental varicocele impairs semen quality and sperm functional integrity.
- This study establishes a link between spermatogenesis and sperm parameters in experimental varicocele.
- Extended varicocele duration did not exacerbate negative effects on sperm quality in this model.
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