Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Varicose Veins II: Diagnostic Studies and Interprofessional Care01:26

Varicose Veins II: Diagnostic Studies and Interprofessional Care

Varicose veins, or varicosities, develop when the valves in the veins, which control blood flow, weaken or damage. It causes blood to pool and the veins to enlarge. Understanding the clinical manifestations, diagnostic approaches, and management options for varicose veins is crucial for effective treatment and relief.Clinical manifestationsClinical manifestations of varicose veins include a heavy, achy feeling or pain after prolonged standing or sitting. This discomfort can often be relieved by...
Infertility in Males01:23

Infertility in Males

Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
Spermatogenesis01:41

Spermatogenesis

Spermatogenesis is the process by which haploid sperm cells are produced in the male testes. It starts with stem cells located close to the outer rim of seminiferous tubules. These spermatogonial stem cells divide asymmetrically to give rise to additional stem cells (meaning that these structures “self-renew”), as well as sperm progenitors, called spermatocytes. Importantly, this method of asymmetric mitotic division maintains a population of spermatogonial stem cells in the male reproductive...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Clomiphene citrate versus testosterone replacement therapy in male hypogonadism: a systematic review of literature and meta-analysis.

European journal of clinical pharmacology·2026
Same author

Individual Effect of Bull Prevails over Sperm Characteristics in Predictive Models.

Biomolecules·2026
Same author

Exposure to oral contraceptives alters human endometrial stem cells culture media secretome.

JBRA assisted reproduction·2026
Same author

Proteomic Profiling of Non-Muscle Invasive Bladder Cancer Reveals Potential Biomarkers for Recurrence and Progression Risk.

Journal of proteome research·2026
Same author

Age-related decline in behavior and reproductive health in male mice.

Scientific reports·2025
Same author

Male Infertility: Treatment Approach - A Committee Opinion.

International braz j urol : official journal of the Brazilian Society of Urology·2025

Related Experiment Video

Updated: Jun 6, 2026

Grade III Varicocele Surgical Treatment using Spermatic Vein-Superficial Abdominal Vein Shunt
05:00

Grade III Varicocele Surgical Treatment using Spermatic Vein-Superficial Abdominal Vein Shunt

Published on: August 23, 2024

Adolescent varicocele: improved sperm function after varicocelectomy.

Jose Iran Lacerda1, Paula Toni Del Giudice, Barbara Ferreira da Silva

  • 1Department of Surgery, Division of Urology, Human Reproduction Section, Sao Paulo Federal University, Sao Paulo, Brazil.

Fertility and Sterility
|November 16, 2010
PubMed
Summary

Varicocelectomy in adolescents improves sperm DNA integrity and mitochondrial activity. However, it does not affect seminal lipid peroxidation levels.

More Related Videos

Combined Supine and Standing Imaging for Varicocele: An Improved Diagnostic Approach
04:15

Combined Supine and Standing Imaging for Varicocele: An Improved Diagnostic Approach

Published on: November 22, 2024

Combination of High Ligation and Intraoperative Embolization Using Polidocanol for Treatment of Varicoceles
03:06

Combination of High Ligation and Intraoperative Embolization Using Polidocanol for Treatment of Varicoceles

Published on: December 22, 2023

Related Experiment Videos

Last Updated: Jun 6, 2026

Grade III Varicocele Surgical Treatment using Spermatic Vein-Superficial Abdominal Vein Shunt
05:00

Grade III Varicocele Surgical Treatment using Spermatic Vein-Superficial Abdominal Vein Shunt

Published on: August 23, 2024

Combined Supine and Standing Imaging for Varicocele: An Improved Diagnostic Approach
04:15

Combined Supine and Standing Imaging for Varicocele: An Improved Diagnostic Approach

Published on: November 22, 2024

Combination of High Ligation and Intraoperative Embolization Using Polidocanol for Treatment of Varicoceles
03:06

Combination of High Ligation and Intraoperative Embolization Using Polidocanol for Treatment of Varicoceles

Published on: December 22, 2023

Area of Science:

  • Reproductive Medicine
  • Andrology
  • Spermatology

Background:

  • Varicocele is a common cause of male infertility.
  • Adolescent varicocele can negatively impact sperm function.
  • Assessing varicocelectomy's effect on sperm quality in adolescents is crucial.

Purpose of the Study:

  • To evaluate the impact of varicocelectomy on sperm DNA integrity and mitochondrial activity in adolescents.
  • To assess changes in seminal lipid peroxidation after varicocelectomy in this age group.

Main Methods:

  • Prospective study involving adolescents (14-19 years) with varicocele (grades II-III).
  • Semen analysis performed before and three months after subinguinal microsurgical varicocelectomy.
  • Sperm DNA fragmentation (Comet assay), mitochondrial activity (diaminobenzidine assay), and malondialdehyde levels were measured.

Main Results:

  • Varicocelectomy significantly increased sperm with intact DNA (grade I) and reduced DNA fragmentation (grades II-IV).
  • Sperm mitochondrial activity improved, with fewer cells showing inactive mitochondria (class III).
  • No significant difference was observed in seminal lipid peroxidation (malondialdehyde) levels.

Conclusions:

  • Adolescent varicocelectomy enhances sperm DNA integrity and mitochondrial function.
  • The procedure does not alter seminal lipid peroxidation markers.
  • Varicocelectomy is a viable option for improving sperm quality in adolescents with varicocele.