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1. Prostaglandin production by the oocyte cumulus complex around the time of fertilization and the effect of prostaglandin E on the development of the early bovine embryo

Author

Mordechai Shemesh, E Harel-Markowitz, Stevan Marcus, Michael Gurevich, and Laurence S. Shore

Subjects
Cleavage Stage, Ovum, Fertilization in Vitro, Reproductive technology, Biology, Dinoprost, Oogenesis, Dinoprostone, Andrology, Embryonic and Fetal Development, Endocrinology, Human fertilization, Genetics, medicine, Animals, Molecular Biology, Fertilisation, Embryo culture, Oocyte, Cumulus oophorus, medicine.anatomical_structure, Reproductive Medicine, Immunology, Oocytes, Cattle, Female, Animal Science and Zoology, Folliculogenesis, Developmental Biology, Biotechnology
Abstract

The oocyte-cumulus complex (25 oocytes per 250 microL medium) produced prostaglandin-F2 alpha (PGF2 alpha) and PGE2 during maturation, immediately following fertilization and for at least 48 h after fertilization. The data suggest that PG production is important in the development of the oocyte; addition of PGE2 (5 ng mL-1) to the fertilization medium increased the rate of cleavage and groups of oocytes with low cleavage rates produced far less PG than groups with high cleavage rates. Measurement of PG in the maturation medium could therefore be a means of assessing the suitability of oocytes for fertilization.

Published
1993

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