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In-vitro matured metaphase-I oocytes have a lower fertilization rate but similar embryo quality as mature metaphase-II oocytes after intracytoplasmic sperm injection

1 Jul 1999

Abstract excerpt

About 4% of all the oocytes denuded prior to intracytoplasmic sperm injection (ICSI) are in metaphase-I (MI). Frequently, these oocytes achieve meiosis after a few hours of in-vitro culture and are available for ICSI on the day of oocyte retrieval. In this retrospective study, the aim was to evaluate the fertilization rate and the developmental capacity of these in-vitro matured MI oocytes. After controlled...

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PMID: 10402405
DOI: 10.1093/humrep/14.7.1859

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