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Review

Morphological criteria of oocyte quality

by
Kristina Lasienë
1,*,
Aleksandras Vitkus
1,
Angelija Valanèiûtë
1 and
Vidmantas Lasys
2
1
Department of Histology and Embryology, Kaunas University of Medicine
2
Department of Anatomy and Physiology, Lithuanian Veterinary Academy, Lithuania
*
Author to whom correspondence should be addressed.
Medicina 2009, 45(7), 509; https://doi.org/10.3390/medicina45070067
Submission received: 23 November 2007 / Accepted: 3 July 2009 / Published: 8 July 2009

Abstract

In vitro fertilization technology consists of the selection and fertilization of oocytes, the production and transplantation of embryos to recipients. The quality of oocytes has a direct impact on the fertilization and developmental competence of oocytes. Criteria that show the quality of oocytes are subdivided into morphological, cellular, and molecular. The aim of this article was to review the morphological criteria that are used for estimation of the quality of oocytes before their fertilization in vitro. These criteria include the evaluation of the structure of oocyte: cumulus complex, oocyte cytoplasm, polar body, perivitelline space, zona pellucida, and meiotic spindle.
Keywords: oocytes; quality; morphological criteria oocytes; quality; morphological criteria

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MDPI and ACS Style

Lasienë, K.; Vitkus, A.; Valanèiûtë, A.; Lasys, V. Morphological criteria of oocyte quality. Medicina 2009, 45, 509. https://doi.org/10.3390/medicina45070067

AMA Style

Lasienë K, Vitkus A, Valanèiûtë A, Lasys V. Morphological criteria of oocyte quality. Medicina. 2009; 45(7):509. https://doi.org/10.3390/medicina45070067

Chicago/Turabian Style

Lasienë, Kristina, Aleksandras Vitkus, Angelija Valanèiûtë, and Vidmantas Lasys. 2009. "Morphological criteria of oocyte quality" Medicina 45, no. 7: 509. https://doi.org/10.3390/medicina45070067

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