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Related Concept Videos

Meiosis II01:57

Meiosis II

Meiosis II is the second and final stage of meiosis. It relies on the haploid cells produced during meiosis I, each of which contain only 23 chromosomes—one from each homologous initial pair. Importantly, each chromosome in these cells is composed of two joined copies, and when these cells enter meiosis II, the goal is to separate such sister chromatids using the same microtubule-based network employed in other division processes. The result of meiosis II is two haploid cells, each containing...
Oogenesis02:07

Oogenesis

In human women, oogenesis produces one mature egg cell or ovum for every precursor cell that enters meiosis. This process differs in two unique ways from the equivalent procedure of spermatogenesis in males. First, meiotic divisions during oogenesis are asymmetric, meaning that a large oocyte (containing most of the cytoplasm) and minor polar body are produced as a result of meiosis I, and again following meiosis II. Since only oocytes will go on to form embryos if fertilized, this unequal...

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Related Experiment Video

Updated: May 17, 2026

Vitrification of Ovarian Cortex Tissue to Achieve a Glassy State of Aggregation
05:53

Vitrification of Ovarian Cortex Tissue to Achieve a Glassy State of Aggregation

Published on: August 9, 2024

[Ovarian cryopreservation: what future?].

S Mirallié1, T Fréour, P Barrière

  • 1Service de médecine et biologie de la reproduction, CHU Nantes, 38, boulevard Jean-Monnet, 44093 Nantes cedex 1, France. sophie.mirallie@chu-nantes.fr

Gynecologie, Obstetrique & Fertilite
|October 27, 2012
PubMed
Summary
This summary is machine-generated.

Ovarian cortex cryobanking offers fertility preservation, resulting in over 20 births globally. Ongoing research aims to improve graft survival and safety, expanding its applications beyond cancer treatment.

More Related Videos

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
08:46

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

Related Experiment Videos

Last Updated: May 17, 2026

Vitrification of Ovarian Cortex Tissue to Achieve a Glassy State of Aggregation
05:53

Vitrification of Ovarian Cortex Tissue to Achieve a Glassy State of Aggregation

Published on: August 9, 2024

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
08:46

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

Area of Science:

  • Reproductive biology
  • Cryobiology
  • Oncology

Context:

  • Ovarian cortex cryobanking is an established fertility preservation method.
  • The technique has led to approximately 20 births worldwide since 2004.
  • Current limitations include low follicular survival post-thaw and transplantation, and disease transmission risks.

Purpose:

  • To optimize the efficacy and safety of ovarian tissue grafts.
  • To develop alternative fertility restoration techniques.
  • To expand the clinical applications of ovarian cryobanking.

Summary:

  • Ovarian cortex cryobanking enables fertility preservation, with over 20 successful births reported globally.
  • Key challenges involve enhancing follicular survival rates after thawing and transplantation and mitigating disease reintroduction.
  • Research efforts focus on improving graft performance and safety, alongside developing novel fertility restoration methods.

Impact:

  • Advances in ovarian cryobanking will broaden its use for medical and social fertility preservation.
  • The technique holds potential for puberty induction and menopause management.
  • Improved methods will enhance oncologists' ability to offer fertility preservation options to more patients.