Results 41 to 50 of about 295,006 (262)

Oocyte-secreted factors enhance oocyte developmental competence

open access: yesDevelopmental Biology, 2006
The capacity of fully grown oocytes to regulate their own microenvironment by paracrine factors secreted by the oocyte (oocyte-secreted factors, OSFs) may in turn contribute to oocyte developmental competence. Here, we investigated if OSFs have a direct influence on oocyte developmental competence during in vitro maturation (IVM). Bovine cumulus-oocyte
Hussein, T., Thompson, J., Gilchrist, R.
openaire   +3 more sources

Effect of Vitamin E on Oocytes Apoptosis in nicotine-treated Mice [PDF]

open access: yes, 2012
Objective(s): Cigarette and nicotine enhances embryogenesis, fertility, pregnancy loss and ultrastructure alterations of oocyte. This study was performed to determine the effect of daily supplementation of vitamin E on oocytes apoptosis in nicotine ...
Asadi, E.   +2 more
core   +1 more source

Actin assembly ruptures the nuclear envelope by prying the lamina away from nuclear pores and nuclear membranes in starfish oocytes. [PDF]

open access: yes, 2020
The nucleus of oocytes (germinal vesicle) is unusually large and its nuclear envelope (NE) is densely packed with nuclear pore complexes (NPCs) stockpiled for embryonic development. We showed that breakdown of this specialized NE is mediated by an Arp2/3-
Avilov, I.   +6 more
core   +1 more source

Mitotic entry: Bora takes Polo to Aurora, and gives them a hug

open access: yesThe EMBO Journal
Cell division involves the complete reorganization of the cellular architecture, requiring precise coordination of cellular processes in space and time, but how does this control system work at the atomic level?
Monica Gobran, Peter Lenart
doaj   +1 more source

Current approaches for assisted oocyte maturation in camels

open access: yesJournal of Animal Reproduction and Biotechnology, 2021
Camel (camelus dromedarius) is a unique large mammalian species that can survive harsh environmental conditions and produce milk, meat, and wool. Camel reproduction is inferior when compared to other farm animal species such as cattle and sheep.
Islam M. Saadeldin, Jongki Cho
doaj   +1 more source

NLRP2 controls age-associated maternal fertility [PDF]

open access: yes, 2016
Nucleotide-binding domain and leucine-rich repeat (NLR) proteins are well-known for their key roles in the immune system. Ectopically expressed NLRP2 in immortalized cell lines assembles an inflammasome and inhibits activation of the proinflammatory ...
Agostini   +24 more
core   +2 more sources

Laser microdissection as a new approach to prefertilization genetic diagnosis [PDF]

open access: yes, 2000
The genetic status of oocytes can be determined by polar body (PB) analysis. Following PB extraction, a genetic evaluation is performed. As each PB contains the complementary genetic material of the oocyte, PB analysis reveals information about its ...
Buchholz, Tina   +2 more
core   +1 more source

Effect of Alpha Lipoic Acid as an Antioxidant Supplement during In Vitro Maturation Medium on Bovine Embryonic Development

open access: yesJournal of Animal Reproduction and Biotechnology, 2017
This study was conducted to investigate the effects of alpha-lipoic acid (aLA) as an antioxidant that decrease the reactive oxygen species (ROS) in bovine embryonic development.
Bahia M. S. Hassan   +4 more
doaj   +1 more source

Effect of different cryopreservation extenders added with antioxidants on semen quality and in vitro embryo production efficiency in cattle

open access: yesAnais da Academia Brasileira de Ciências, 2021
To evaluate the addition of antioxidants in extenders on post-thaw bovine semen quality and in vitro embryo production efficiency. Six semen samples were collected from five Holstein bulls. In the experiment I, the samples were diluted with AndroMed® and
NATALIA C. SILVA   +6 more
doaj   +1 more source

Tyrosine decaging leads to substantial membrane trafficking during modulation of an inward rectifier potassium channel [PDF]

open access: yes, 2001
Tyrosine side chains participate in several distinct signaling pathways, including phosphorylation and membrane trafficking. A nonsense suppression procedure was used to incorporate a caged tyrosine residue in place of the natural tyrosine at position ...
Brandt, Gabriel S.   +7 more
core   +3 more sources

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