Results 41 to 50 of about 264,880 (269)

GGPP-Mediated Protein Geranylgeranylation in Oocyte Is Essential for the Establishment of Oocyte-Granulosa Cell Communication and Primary-Secondary Follicle Transition in Mouse Ovary. [PDF]

open access: yesPLoS Genetics, 2017
Folliculogenesis is a progressive and highly regulated process, which is essential to provide ova for later reproductive life, requires the bidirectional communication between the oocyte and granulosa cells.
Chen Jiang   +12 more
doaj   +1 more source

Inferring simple but precise quantitative models of human oocyte and early embryo development [PDF]

open access: yesarXiv, 2021
Macroscopic, phenomenological models have proven useful as concise framings of our understandings in fields from statistical physics to economics to biology. Constructing a phenomenological model for development would provide a framework for understanding the complicated, regulatory nature of oogenesis and embryogenesis.
arxiv  

Sperm-oocyte interplay: an overview of spermatozoon’s role in oocyte activation and current perspectives in diagnosis and fertility treatment

open access: yesCell & Bioscience, 2021
The fertilizing spermatozoon is a highly specialized cell that selects from millions along the female tract until the oocyte. The paternal components influence the oocyte activation during fertilization and are fundamental for normal embryo development ...
Mohammad Ishraq Zafar   +2 more
doaj   +1 more source

The art of oocyte meiotic arrest regulation

open access: yesReproductive Biology and Endocrinology, 2019
A central dogma of mammalian reproductive biology is that the size of the primordial follicle pool represents reproductive capacity in females. The assembly of the primordial follicle starts after the primordial germ cells (PGCs)-derived oocyte releases ...
Bo Pan, Julang Li
semanticscholar   +1 more source

Comparison of obstetric outcomes of pregnancies after donor-oocyte In vitro fertilization and self-oocyte In vitro fertilization: A retrospective cohort study

open access: yesJournal of Human Reproductive Sciences, 2018
Aims:The aim of this study is to evaluate and compare multiple obstetric and perinatal outcomes between donor-oocyte in vitro fertilization (IVF) and self-oocyte IVF group. Settings and Design: This study was done in a tertiary care center with ART unit.
Vikas Yadav   +5 more
doaj   +1 more source

Active mechanics reveal molecular-scale force kinetics in living oocytes [PDF]

open access: yesBiophysical Journal 114,7, 1667(2018), 2015
Active diffusion of intracellular components is emerging as an important process in cell biology. This process is mediated by complex assemblies of molecular motors and cytoskeletal filaments that drive force generation in the cytoplasm and facilitate enhanced motion. The kinetics of molecular motors have been precisely characterized in-vitro by single
arxiv   +1 more source

The epidermal growth factor network: role in oocyte growth, maturation and developmental competence

open access: yesHuman Reproduction Update, 2018
BACKGROUND The LH surge induces great physiological changes within the preovulatory follicle, which culminate in the ovulation of a mature oocyte that is capable of supporting embryo and foetal development.
D. Richani, R. Gilchrist
semanticscholar   +1 more source

Glycolytic metabolites are critical modulators of oocyte maturation and viability. [PDF]

open access: yesPLoS ONE, 2013
The maturation of an oocyte into an egg is a key step in preparation for fertilization. In Xenopus, oocyte maturation is independent of transcription, being regulated at the level of translation and post-translational modifications of proteins.
Lloyd Berger, Andrew Wilde
doaj   +1 more source

Cortical microtubule nucleation can organise the cytoskeleton of $Drosophila$ oocytes to define the anteroposterior axis [PDF]

open access: yeseLife 4, e06088 (2015), 2015
Many cells contain non-centrosomal arrays of microtubules (MT), but the assembly, organisation and function of these arrays are poorly understood. We present the first theoretical model for the non-centrosomal MT cytoskeleton in $Drosophila$ oocytes, in which $bicoid$ and $oskar$ mRNAs become localised to establish the anterior-posterior body axis ...
arxiv   +1 more source

Oocyte specific lncRNA variant Rose influences oocyte and embryo development

open access: yesNon-coding RNA Research, 2021
Fully grown mammalian oocytes store a large amount of RNA synthesized during the transcriptionally active growth stage. A large part of the stored RNA belongs to the long non-coding class which contain either transcriptional noise or important ...
Rajan Iyyappan   +5 more
doaj  

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