Results 21 to 30 of about 132,905 (308)

Cdk1 inactivation induces post-anaphase-onset spindle migration and membrane protrusion required for extreme asymmetry in mouse oocytes

Nature Communications, 2018
Female meiotic divisions are asymmetric with the formation of large oocytes and small polar bodies, thought to result from cortical spindle placement before anaphase.
Zhe Wei, Jessica Greaney, Chenxi Zhou, Hayden A. Homer   +3 more
doaj   +1 more source

Perspectives, experiences, and choices of parents of children conceived following oocyte donation [PDF]

, 2013
This paper reports on and discusses the findings of an online survey initiated by the Donor Sibling Registry of 108 parents of children conceived following oocyte donation. Respondents generally supported early disclosure of donor conception to the child,
Kramer, Wendy, Schneider, Jennifer, Blyth, Eric   +2 more
core   +1 more source

Implications of oocyte cryostorage for the practice of oocyte donation [PDF]

Human Reproduction, 2012
As the efficiency of oocyte cryopreservation has increased rapidly in recent years, oocytes are currently being stored either in the course of IVF treatments or as a fertility preservation measure. These practices may have an impact on the number of available donor oocytes due to two different dynamics: first, a certain percentage of women for whom ...
Heidi, Mertes, Guido, Pennings, Wybo, Dondorp, Guido, de Wert   +3 more
openaire   +2 more sources

The influence of timing of oocytes retrieval and embryo transfer on the IVF-ET outcomes in patients having bilateral salpingectomy due to bilateral hydrosalpinx

Frontiers in Surgery, 2023
ObjectiveThe objective of the study was to investigate whether the sequence of oocyte retrieval and salpingectomy for hydrosalpinx affects pregnancy outcomes of in vitro fertilization and embryo transfer (IVF-ET) patients.Study DesignThere were 1,610 ...
He Yilei, He Yilei, He Yilei, He Yilei, Yang Shuo, Yang Shuo, Yang Shuo, Yang Shuo, Ma Caihong, Ma Caihong, Ma Caihong, Ma Caihong, Yang Yan, Yang Yan, Yang Yan, Yang Yan, Song Xueling, Song Xueling, Song Xueling, Song Xueling, Zhang Jiajia, Zhang Jiajia, Zhang Jiajia, Zhang Jiajia, Liu Ping, Liu Ping, Liu Ping, Liu Ping, Li Rong, Li Rong, Li Rong, Li Rong, Qiao Jie, Qiao Jie, Qiao Jie, Qiao Jie   +35 more
doaj   +1 more source

Histology of the oocytes of Lutjanus peru (Nichols and Murphy, 1922) (Pisces: Lutjanidae)

Ciencias Marinas, 2001
The distinctive characteristics found in each of the development stages of the oocyte in the ovary of Lutjanus peru (Pacific red snapper) are described.
G Lucano-Ramírez, M Villagrán-SantaCruz, S Ruiz-Ramírez, T López-Murillo   +3 more
doaj   +1 more source

In vivo Imaging of oskar mRNA transport reveals the mechanism of posterior localization [PDF]

, 2008
oskar mRNA localization to the posterior of the Drosophila oocyte defines where the abdomen and germ cells form in the embryo. Although this localization requires microtubules and the plus end-directed motor, kinesin, its mechanism is controversial and ...
Zimyanin, Vitaly L, Gilchrist, Michael J., Pecreaux, J, Davis, Ilan, Zimyanin, Vitaly L., Gilchrist, Michael J, Clark, Alejandra, St Johnston, D, Belaya, K, Pecreaux, Jacques, Clark, A, Gilchrist, MJ, Davis, I, St Johnston, Daniel, Zimyanin, VL, Belaya, Katsiaryna, Johnston, Daniel St   +16 more
core   +1 more source

Biosynthesis and expression of zona pellucida glycoproteins in mammals [PDF]

, 2001
The zona pellucida (ZP) is an extracellular matrix surrounding the oocyte and the early embryo that exerts several important functions during fertilization and early embryonic development.
Töpfer-Petersen, E., Kölle, S., Sinowatz, Fred   +2 more
core   +1 more source

Improvement of oocyte competence and in vitro oocyte maturation with EGF and IGF-I in Guinea pig model

, 2023
2023 Acuerdos transformativos CRUEIn vitro maturation (IVM) system is an alternative method to superovulation protocols to obtain mature oocytes. Epidermal Growth Factor (EGF) and Insulin-like Growth Factor I (IGF-I) have been widely used in IVM medium ...
Cañón Beltrán, Karina Esperanza, Fierro, Natacha, García García, Rosa María, Lorenzo González, Pedro Luis, Arias Álvarez, María, Cajas Suárez, Yulia Nathaly   +5 more
core   +1 more source

Control of pluripotency during the oocyte-to-embryo transition in caenorhabditis elegans [PDF]

, 2015
The germline of Caenorhabditis elegans has been used as a model system to study the control of pluripotency in germ cells: through the mean of a genetic screen, from which most of the results of this thesis derived, different factors involved in the ...
Tocchini, Cristina
core   +1 more source

Regulation of fatty acid oxidation in mouse cumulus-oocyte complexes during maturation and modulation by PPAR agonists.

PLoS ONE, 2014
Fatty acid oxidation is an important energy source for the oocyte; however, little is known about how this metabolic pathway is regulated in cumulus-oocyte complexes.
Kylie R Dunning, Marie R Anastasi, Voueleng J Zhang, Darryl L Russell, Rebecca L Robker   +4 more
doaj   +1 more source