Results 261 to 270 of about 316,539 (293)

Maturation and Fertilization of Equine Oocytes

Veterinary Clinics of North America: Equine Practice, 1996
Equine oocytes obtained either by transvaginal ultrasound-guided follicular aspiration or from slaughterhouse ovaries can be matured in vitro. This generally requires culture in TCM-199 containing serum and hormones for 30 to 36 hours. With this protocol, approximately 50% to 60% of the oocytes are at metaphase-II at the end of the culture period.
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Ultrastructure of Maturing Human Oocytes

Annals of the New York Academy of Sciences, 1985
The material for study consisted of 41 nonatretic oocytes obtained at follicular aspiration in women in whom ovarian stimulation had been carried out. Collected oocytes were clinically classified as preovulatory and immature by the amount, dispersion, and viscosity of cumulus‐corona cells surrounding the oocytes.
P, Sundström, B O, Nilsson, P, Liedholm, E, Larsson   +3 more
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Mechanisms of Xenopus oocyte maturation

1997
Publisher Summary This chapter discusses the mechanisms of xenopus oocyte maturation. Although many aspects of the meiotic cell cycle are similar to the mitotic cell cycle, the differences between them are critical for the accurate reduction of genetic material.
M S, Murakami, G F, Vande Woude
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In vitro maturation of horse oocytes

Theriogenology, 1994
Ovaries collected from slaughtered mares of unknown reproductive history were transported to the laboratory, and their oocytes were recovered and cultured in modified TCM 199 supplemented with 20% horse serum and additional granulosa cells. To characterize the ovaries, the size and number of follicles were counted.
H, Alm, H, Torner
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Maturation and Fertilization in Starfish Oocytes

1984
L'ignorance qui estoit naturellement en nous, nous l'avons, par longue estude, confirmee et averee. (MONTAIGNE)Sorrow is knowledge; they who know the most Must mourn the deepest o'er the fatal truth The Tree of knowledge is not that of Life. (BYRON)
L, Meijer, P, Guerrier
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[Effects of gonadotropins on oocyte maturation].

Minerva ginecologica, 2001
The use of exogenous gonadotropins, alone or in association with other drugs, is a useful tool in the treatment of anovulation. The first stages of the follicologenesis are gonadotropin independent up to the preantral stage. The final phase of this process begins when follicles grow faster during the luteal phase of the preceding cycle, the so-called ...
Tommaselli GA, Pellicano M, Acunzo G, Ferrara C, Fele A, DI SPIEZIO SARDO, ATTILIO, NAPPI, CARMINE   +6 more
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Mature oocyte cryopreservation: a guideline

Fertility and Sterility, 2013
There is good evidence that fertilization and pregnancy rates are similar to IVF/ICSI with fresh oocytes when vitrified/warmed oocytes are used as part of IVF/ICSI for young women. Although data are limited, no increase in chromosomal abnormalities, birth defects, and developmental deficits has been reported in the offspring born from cryopreserved ...
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[Oocyte maturation: can oocyte competence be defined?].

Journal de gynecologie, obstetrique et biologie de la reproduction, 2006
Oocyte competence is acquired throughout oogenesis, via the interaction with somatic cells. The ability to reinitiate the meiotic process and undergo preimplantation development is progressively determined during the antral phase. It is well-known that these changes involve the nuclear and cytoplasmic compartments, respectively, but the underlying ...
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Advances in Oocyte Maturation In Vivo and In Vitro in Mammals

International Journal of Molecular Sciences, 2023
Bin Ma, Xiaolong Yuan, Penghao Wang
exaly  

Oocyte Maturation

1979
Y, Masui, H J, Clarke
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