Telomere attrition in germinal vesicle arrested human oocytes
نویسندگان
چکیده
منابع مشابه
Vitrification of human germinal vesicle oocytes; before or after in vitro maturation?
Background The utilization of immature oocytes derived from stimulated cycles could be of great importance, specially for urgent fertility preservation cases. The aim of the current study was to determine whether in-vitro maturation is more successful before or after the vitrification of these oocytes. MaterialsAndMethods The study was performed in a private IVF center. 318 germinal vesicle (GV...
متن کاملProtein requirements for germinal vesicle breakdown in ovine oocytes.
The regulation of the cell cycle during the transition from prophase to metaphase I was studied by analysing protein changes and introducing protein blocks during the transition phase. The results show that the progression to metaphase in ovine oocytes is totally dependent on new protein synthesis. By delaying the addition of the inhibitor, cycloheximide, for progressively longer periods after ...
متن کاملChromatin modifications in the germinal vesicle (GV) of mammalian oocytes.
The nucleus of eukaryotic cells is organized into functionally specialized compartments that are essential for the control of gene expression, chromosome architecture and cellular differentiation. The mouse oocyte nucleus or germinal vesicle (GV) exhibits a unique chromatin configuration that is subject to dynamic modifications during oogenesis. This process of 'epigenetic maturation' is critic...
متن کاملvitrification of human germinal vesicle oocytes; before or after in vitro maturation?
background: the utilization of immature oocytes derived from stimulated cycles could be of great importance, specially for urgent fertility preservation cases. the aim of the current study was to determine whether in-vitro maturation is more successful before or after the vitrification of these oocytes. materials and methods: the study was performed in a private ivf center. 318 germinal vesicle...
متن کاملGerminal vesicle transfer between fresh and cryopreserved immature mouse oocytes.
BACKGROUND We assessed the maturational competence and the chromosomal pattern of mouse oocytes reconstructed by germinal vesicle (GV) transfer technique using nuclear and/or cytoplasmic components from cryopreserved GV stage oocytes. METHODS From 657 GV oocytes (326 fresh and 331 frozen/thawed), four groups of reconstructed oocytes were obtained by micromanipulation and electrofusion: fresh ...
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ژورنال
عنوان ژورنال: Fertility and Sterility
سال: 2015
ISSN: 0015-0282
DOI: 10.1016/j.fertnstert.2015.07.617