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Abstract <p>In vitro oocyte maturation (IVM) involves the aspiration of prophase I oocytes in oocyte-cumulus complexes from small antral follicles and their subsequent maturation to metaphase II (MII). IVM is a promising method for obtaining MII oocytes in cases where hormonal stimulation of the ovaries is undesirable or impossible. At the same time, in terms of maturation rates and developmental capacity, oocytes obtained as a result of the IVM procedure are inferior to oocytes obtained in stimulated cycles; therefore, improving IVM protocols is a hot topic. The review discusses the possibilities of the IVM procedure in the context of key stages of oocyte maturation and their achievement of nuclear and cytoplasmic maturity. The advantages and disadvantages of various IVM techniques and the main directions for their further improvement are highlighted.</p>

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Maturation of Oocytes In Vitro: Biological Basis and Prospects for Clinical Use (A Review)

  • 期刊论文

  • 发表日期：

    2025年7月28日

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  • A. O. Drobintseva,
  • V. K. Frolov,
  • I. O. Bogolyubova,
  • O. E. Savelyeva,
  • S. A. Kuleva

摘要

Abstract

In vitro oocyte maturation (IVM) involves the aspiration of prophase I oocytes in oocyte-cumulus complexes from small antral follicles and their subsequent maturation to metaphase II (MII). IVM is a promising method for obtaining MII oocytes in cases where hormonal stimulation of the ovaries is undesirable or impossible. At the same time, in terms of maturation rates and developmental capacity, oocytes obtained as a result of the IVM procedure are inferior to oocytes obtained in stimulated cycles; therefore, improving IVM protocols is a hot topic. The review discusses the possibilities of the IVM procedure in the context of key stages of oocyte maturation and their achievement of nuclear and cytoplasmic maturity. The advantages and disadvantages of various IVM techniques and the main directions for their further improvement are highlighted.