Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Meiosis II

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...

Oogenesis

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...

You might also read

Related Articles

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

Sort by

Same author

Testing process errors and their harms and consequences reported from family medicine practices: a study of the American Academy of Family Physicians National Research Network.

Quality & safety in health care·2008

Same author

Educating doctors to provide counseling and preventive care: turning 20th century professional values head over heels.

Education for health (Abingdon, England)·2004

Same author

It takes a balanced health care system to get it right.

The Journal of family practice·2001

Same author

Direct graduate medical education payments to teaching hospitals by Medicare: unexplained variation and public policy contradictions.

Academic medicine : journal of the Association of American Medical Colleges·2001

Same author

Computerised advice on drug dosage to improve prescribing practice.

The Cochrane database of systematic reviews·2001

Same author

Shortchanging adolescents: room for improvement in preventive care by physicians.

Family medicine·2001

Search research articles

Related Experiment Video

Updated: May 16, 2026

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

Oocyte cryopreservation: advances and drawbacks.

¹Division of Reproductive Endocrinology, Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh Medical Center, Magee-Women Hospital, Pittsburgh, PA 15213, USA.

Minerva Ginecologica

|December 13, 2012

Summary

This summary is machine-generated.

Oocyte cryopreservation (OC) has advanced significantly, with vitrification technology improving pregnancy rates. This fertility preservation method offers benefits for women facing medical treatments or choosing to delay childbearing.

More Related Videos

Minimum Volume Vitrification of Immature Feline Oocytes

Minimum Volume Vitrification of Immature Feline Oocytes

Published on: June 24, 2020

Related Experiment Videos

Last Updated: May 16, 2026

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives

Published on: September 16, 2021

Minimum Volume Vitrification of Immature Feline Oocytes

Minimum Volume Vitrification of Immature Feline Oocytes

Published on: June 24, 2020

Area of Science:

Reproductive Medicine
Cryobiology
Oocyte Cryopreservation

Background:

Oocyte cryopreservation (OC) has evolved since 1986.
Vitrification technology has dramatically improved pregnancy rates in the last five years.
OC offers fertility preservation for medical reasons and elective childbearing delays.

Purpose of the Study:

To review the advancements in oocyte cryopreservation technology over three decades.
To discuss clinical applications and benefits of OC.
To identify areas requiring further research in OC.

Main Methods:

Review of historical data and recent advancements in OC.
Analysis of clinical outcomes and pregnancy rates associated with vitrification.
Discussion of ethical considerations and future research directions.

Main Results:

Significant increase in pregnancy rates from OC in the past five years.
Vitrification minimizes ice formation, enhancing oocyte survival.
OC is a viable option for fertility preservation in various clinical scenarios.

Conclusions:

Oocyte cryopreservation, particularly with vitrification, is a rapidly advancing field.
Improved OC protocols enhance fertility preservation options for diverse patient groups.
OC will play an increasingly vital role in reproductive medicine.