oocyte

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o·o·cyte

(ō′ə-sīt′)

A diploid cell from which an egg or ovum develops by meiosis. A primary oocyte divides to produce a polar body and a secondary oocyte, which divides again to produce the ovum and another polar body.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

oocyte

(ˈəʊəˌsaɪt)

(Biology) an immature female germ cell that gives rise to an ovum after two meiotic divisions

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

o•o•cyte

(ˈoʊ əˌsaɪt)

n.

an immature egg cell of the animal ovary: in humans, one oocyte matures during the menstrual cycle while several others partially mature and disintegrate.

[1890–95]

oocyte

An immature ovum (egg).

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Noun

oocyte - a female gametocyte that develops into an ovum after two meiotic divisions

gametocyte - an immature animal or plant cell that develops into a gamete by meiosis

Translations

ovocyte

o·o·cyte

n. oocito, ovocito, el óvulo antes de la madurez.

English-Spanish Medical Dictionary © Farlex 2012

References in periodicals archive ?

We can conclude that the oocyte stage most sensitive to cryoprotectants is the mature stage for S.

Surubim-do-Paraiba oocytes viability after being exposed to different cryoprotectants/Viabilidade de oocitos de surubim do Paraiba apos exposicao a diferentes crioprotetores

However, many such patients are reluctant to accept a planned Oocyte Donation (OD) but prefer to keep trying with the stimulation of their own ovaries, because they hope that the "next stimulation will be the good one".

Same Cycle Shift from IVF with Own Oocytes to Oocyte Donation in No or Poor Response Cycles

The researchers from the Goethe University Frankfurt deciphered the mechanism leading to premature loss of the oocyte pool caused by treatment with chemotherapy.

How to safeguard fertility during chemotherapy?

Cryopreservation of oocyte can be helpful in fertility preservation and development of assisted reproductive technology (Chen, 1986; van Uem et al., 1987).

Assessment of Mouse Oocytes Ultrastructure Following Vitrification Before and After in vitro Maturation/Evaluacion de la Ultraestructura de los Ovocitos de Raton Despues de la Vitrificacion Antes y Despues de la Maduracion in vitro

Then after ovulation induction using the antagonist protocol the response to ovulation induction was determined by number of follicles restored (number of follicles produced as a result of ovarian stimaulation), quality of oocytes retrieved was noted (analysis of various aspects of oocyte morphology, cytoplasm, zona pellucid and polar body via conventional phase contrast microscoy had generated a criteria of good, moderate and bad quality oocytes), also the oocytes fertilized and inseminated were noted.

Ovarian reserve parameters and response to controlled ovarian stimulation in infertile patients

Mammalian oocyte maturation involves nuclear and cytoplasmic maturation, which are essential for successful fertilization and embryonic development [15].

Detrimental effects of lipopolysaccharides on maturation of bovine oocytes

Each slide was digitalized at high resolution (600 dpi; 40x) and processed in triplicate with Image-Pro Premier 2D version 9.2 for calculating total area (A) and theoretical mean diameter (TD) of each oocyte type to characterize detailed stages of oogenesis.

Oogenesis of Lithodes santolla: histological and histochemical characterization

Keywords: Polycystic ovarian syndrome, Body mass index, In vitro fertilisation, Gonadotropin, Oocyte.

Impact of high body mass index with or without polycystic ovarian syndrome on the outcome of in vitro fertilization

Keywords: In-vitro maturation, cattle, oocyte competency.

RECENT ADVANCES IN OOCYTES IN-VITRO MATURATION PROCESS IN BOVINES

The germinal vesicle and the cytoplasmic organelles of the oocyte were disintegrated.

Atresia and Apoptosis in Pre- and Postovulatory Follicles of Sharptooth Catfish (Clarias gariepinus, Burchell, 1822)

The story of in vitro fertilization (IVF) began with immature oocytes from unstimulated cycles and finally succeeded with the birth of Louise Brown in 1978 (1); however, the roots of studies about immature oocytes and in vitro oocyte maturation (IVM) go back to the 1930s (2).

The use of in vitro maturation in stimulated antagonist in vitro fertilization cycles of normo-hyperresponder women due to arrested follicular development: A rescue procedure/Folikul gelisim arresti yasayan uyanlmis antogonist in vitro fertilizasyon siklusundaki normo-hiperresponder kadinlarda in vitro maturasyonun kullamlmasi: Bir kurtarma proseduru

Lead author of the research, Dr Nancy Nader, research associate in physiology and biophysics at WCM-Q, explained:"The role of the hormone progesterone in turning immature oocytes (ovarian cells) into mature eggs, in a process known as 'oocyte maturation' that prepares the cell for fertilization, is well known.