Morphology and Biochemistry of Ovulation.

Rev Bras Ginecol Obstet

Instituto Tropical de Medicina Reprodutiva, Cuiabá, Mato Grosso, MT, Brazil.

Published: June 2021

The process of ovulation involves multiple and iterrelated genetic, biochemical, and morphological events: cessation of the proliferation of granulosa cells, resumption of oocyte meiosis, expansion of cumulus cell-oocyte complexes, digestion of the follicle wall, and extrusion of the metaphase-II oocyte. The present narrative review examines these interrelated steps in detail. The combined or isolated roles of the follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are highlighted. Genes indiced by the FSH genes are relevant in the cumulus expansion, and LH-induced genes are critical for the resumption of meiosis and digestion of the follicle wall. A non-human model for follicle-wall digestion and oocyte release was provided.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10411198PMC
http://dx.doi.org/10.1055/s-0041-1731379DOI Listing

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