Results 101 to 110 of about 264,880 (269)

Deep sequencing and de novo assembly of the mouse oocyte transcriptome define the contribution of transcription to the DNA methylation landscape

Genome Biology, 2015
Previously, a role was demonstrated for transcription in the acquisition of DNA methylation at imprinted control regions in oocytes. Definition of the oocyte DNA methylome by whole genome approaches revealed that the majority of methylated CpG islands ...
L. Veselovská, Sébastien A. Smallwood, Heba Saadeh, Kathleen R. Stewart, Felix Krueger, Stéphanie Maupetit‐Méhouas, P. Arnaud, Shin-ichi Tomizawa, S. Andrews, G. Kelsey   +9 more
semanticscholar   +1 more source

Evidence of Oocyte Polarity in Bovine; Implications for Intracytoplasmic Sperm Injection and Somatic Cell Nuclear Transfer

Cell Journal, 2017
Objective: We recently demonstrated spatial regionalization of maternal transcripts and proteins within unfertilized ovine oocyte. Here, we investigated the likelihood of oocyte polarity for the first time in bovine.
Seyed Morteza Hosseini, Fariba Moulavi, Nima TanhaieVash, Naser Shams-Esfandabadi, Mohammad Hossein Nasr-Esfahani, Abolfazl Shirazi   +5 more
doaj   +1 more source

Cryopreservation of Oocytes [PDF]

New England Journal of Medicine, 2016
Hickey, Martha, Peate, Michelle, Anderson, Richard   +2 more
openaire   +4 more sources

Cumulin, an Oocyte-secreted Heterodimer of the Transforming Growth Factor-β Family, Is a Potent Activator of Granulosa Cells and Improves Oocyte Quality*

Journal of Biological Chemistry, 2015
Background: Cumulin is a newly identified heterodimeric member of the TGF-β family. Results: Mature cumulin potently stimulates granulosa cell signaling and function, whereas pro-cumulin promotes oocyte quality.
D. Mottershead, S. Sugimura, S. Al-Musawi, Jingjie Li, D. Richani, Melissa A. White, Georgia A Martin, A. Trotta, L. J. Ritter, Junyan Shi, T. Mueller, C. Harrison, R. Gilchrist   +12 more
semanticscholar   +1 more source

Estradiol and luteinizing hormone concentrations in the follicular aspirate during ovum pickup as predictors of in vitro fertilization (IVF) outcome

Middle East Fertility Society Journal, 2017
Background: A relationship between ‘oocyte quality’ and follicular fluid hormones is expected, since its formation coincides with the ‘oocyte maturation’ phase.
Diaa Sarhan, Akmal El Mazny, Tamer Taha, Amira Aziz, Osama Azmy, Dawood Fakhry, Haitham Torky   +6 more
doaj   +1 more source

ELECTRON MICROSCOPY OF BASOPHILIC STRUCTURES OF SOME INVERTEBRATE OOCYTES [PDF]

, 1956
Lionel I. Rebhun
openalex   +1 more source

Lipids and oocyte developmental competence: the role of fatty acids and β-oxidation.

Reproduction, 2014
Metabolism and ATP levels within the oocyte and adjacent cumulus cells are associated with quality of oocyte and optimal development of a healthy embryo.
K. R. Dunning, D. Russell, R. Robker
semanticscholar   +1 more source

A surge in cytoplasmic viscosity triggers nuclear remodeling required for Dux silencing and pre-implantation embryo development

Cell Reports
Summary: Embryonic genome activation (EGA) marks the transition from dependence on maternal transcripts to an embryonic transcriptional program. The precise temporal regulation of gene expression, specifically the silencing of the Dux/murine endogenous ...
Yunan Ye, Hayden Anthony Homer
doaj  

THE ULTRASTRUCTURE OF THE VITELLINE BODY IN THE OOCYTE OF THE SPIDER TEGENARIA PARIETINA [PDF]

, 1957
Jean André, Charles Rouiller
openalex   +1 more source

Oocyte-secreted factors: regulators of cumulus cell function and oocyte quality.

Human Reproduction Update, 2008
Oocyte quality is a key limiting factor in female fertility, yet we have a poor understanding of what constitutes oocyte quality or the mechanisms governing it.
R. Gilchrist, M. Lane, Jeremy G. Thompson   +2 more
semanticscholar   +1 more source