Results 31 to 40 of about 53,055 (306)
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 +4 more
doaj +1 more source
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 +5 more
core +1 more source
BackgroundAdenomyosis is commonly encountered in infertile women; however, it is still unclear whether adenomyosis has a detrimental effect on in vitro fertilization and embryo transfer (IVF-ET) outcomes.MethodWe enrolled 1146 patients with adenomyosis ...
Tingting Liang +26 more
doaj +1 more source
The regulation of oocyte maturation and ovulation in the closest sister group of vertebrates
Ascidians are the closest living relatives of vertebrates, and their study is important for understanding the evolutionary processes of oocyte maturation and ovulation.
Shin Matsubara +4 more
doaj +1 more source
The current study aimed to determine the effects of the preovulatory follicular fluid (FF) of normal heifer (NH) and repeat breeder cows with subclinical endometritis (SCE) or without (nSCE) on oocyte maturation (Experiment 1) and fertilization rates ...
Mojtaba Kafi +5 more
doaj +1 more source
Post-Translational Modifications in Oocyte Maturation and Embryo Development
Mammalian oocyte maturation and embryo development are unique biological processes regulated by various modifications. Since de novo mRNA transcription is absent during oocyte meiosis, protein-level regulation, especially post-translational modification (
Yu Wu, Yu Wu, Mo Li, Mo Li, Mo Yang
doaj +1 more source
The effect of vitrification after warming on the expressions of p38, CDK1, and cyclin B in immature goat oocytes followed by in vitro maturation [PDF]
Background and Aim: The combination of vitrification techniques and in vitro maturation can reduce oocyte competence. Mitogen-activated protein kinase and maturation-promoting factor are significant in oocyte meiotic maturation regulation.
A. A. Muhammad Nur Kasman +2 more
doaj +1 more source
Oocyte maturation and embryonic failure [PDF]
Embryonic development is readily compromised by imperfections introduced during the process of oocyte maturation. We discuss the nature and causes of these imperfections, particularly in oocytes exposed to inappropriate hormonal regimes in vivo or to culture systems designed to induce the maturation of oocytes in vitro. The acquisition of developmental
R M, Moor, Y, Dai, C, Lee, J, Fulka
openaire +2 more sources
The Making of a Competent Oocyte – A Review of Oocyte Development and Its Regulation
Assisted reproductive technologies (ART) merely depend on improving the oocyte maturation and their developmental competence to produce good quality embryos.
Hammed A. Tukur +4 more
doaj +1 more source
Oocyte maturation is a process that occurs in the ovaries, where an immature oocyte resumes meiosis to attain competence for normal fertilization after ovulation/spawning. In starfish, the hormone 1-methyladenine binds to an unidentified receptor on the plasma membrane of oocytes, inducing a conformational change in the heterotrimeric GTP-binding ...
openaire +3 more sources

