oocyte arrest

[/ˈoʊ.ə.saɪt əˈrɛst/]
nounpl: oocyte arrests
parada do oócito
1. A temporary or permanent halt in the development and maturation of an oocyte (egg cell) during meiosis, typically occurring at specific points in the cell cycle such as prophase I (dictyotene stage) or metaphase II
Oocyte arrest at metaphase II is maintained until fertilization occurs.
A parada do oócito em metáfase II é mantida até que a fertilização ocorra.
2. The state or condition in which an oocyte is prevented from completing its meiotic divisions due to biological, chemical, or mechanical factors
Hormonal imbalances can lead to oocyte arrest and infertility.
Desequilíbrios hormonais podem levar à parada do oócito e infertilidade.
This is a specialized scientific and medical term used primarily in reproductive biology, fertility medicine, and embryology. It is essential in discussions of infertility treatment, assisted reproductive technologies (ART), and developmental biology in both Brazil and Portuguese-speaking countries. The term reflects advances in understanding human reproduction and is frequently encountered in medical literature, university biology courses, and fertility clinics.
Synonyms / Sinônimos
meiotic arrestoocyte maturation blockdevelopmental arrest of oocytesegg cell arrest
Antonyms / Antônimos
oocyte maturationmeiotic progressionoocyte activation

Regional Variations

General Brazilian Portuguese
parada do oócito
Most common medical and scientific usage in Brazil
Portugal
paragem do oócito / bloqueio meiótico
Portuguese medical terminology may use 'paragem' or more commonly 'bloqueio meiótico'
Medical/Academic
bloqueio meiótico; detenção meiótica
Technical terminology used in reproductive biology and fertility medicine

Related Words

oocytemeiosismetaphase IIprophase Idictyoteneootidpolar bodyfertilizationmaturation promoting factor (MPF)cell cycle checkpoint

Related Idioms & Phrases

oocyte arrest at metaphase II - the normal arrest state in mature unfertilized eggs
oocyte arrest at prophase I - the arrest state in primordial follicles
break oocyte arrest - to resume meiotic progression
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