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Related Experiment Videos

Oocyte maturation in vitro.

Helen M Picton1

  • 1Academic Unit of Paediatrics and Obstetrics and Gynaecology, University of Leeds, Leeds, UK. h.m.picton@leeds.ac.uk

Current Opinion in Obstetrics & Gynecology
|May 29, 2002
PubMed
Summary

In-vitro maturation (IVM) retrieves immature oocytes for lab maturation before fertilization, offering lower costs and improved safety. Current research aims to enhance IVM efficiency for outcomes comparable to conventional in-vitro fertilization.

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Area of Science:

  • Reproductive biology and assisted reproduction technologies.

Background:

  • Conventional assisted reproduction retrieves mature metaphase II oocytes.
  • In-vitro maturation (IVM) involves retrieving immature germinal vesicle stage oocytes for laboratory maturation prior to fertilization.
  • IVM presents potential advantages like reduced treatment costs, fewer clinical consultations, and less pharmacological intervention compared to conventional methods.

Purpose of the Study:

  • To review the physiology and application of human oocyte maturation in vitro.
  • To detail recent advancements in the rapidly evolving field of IVM.
  • To highlight the potential benefits and current limitations of IVM.

Main Methods:

  • Retrieval of immature germinal vesicle stage oocytes.
  • Maturation of oocytes in a laboratory setting.
  • Fertilization and embryo transfer following in-vitro maturation.

Main Results:

  • IVM has been successfully applied in treating patients with polycystic ovarian syndrome, leading to reported pregnancies and live births.
  • Despite successes, the overall efficiency of IVM remains low.
  • Current clinical and laboratory procedures for IVM are not yet as robust or routinely feasible as conventional in-vitro fertilization.

Conclusions:

  • Immediate goals for IVM programs include increasing germinal vesicle oocyte recovery rates and optimizing culture conditions.
  • Enhancing oocyte maturation potential and achieving pregnancy rates equivalent to conventional in-vitro fertilization are key objectives.
  • Further research and development are necessary to improve the robustness and routine feasibility of IVM.

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