Results 31 to 40 of about 316,539 (293)

Role of arachidonic acid cascade in Rhinella arenarum oocyte maturation [PDF]

open access: yes, 2015
There are no studies that document the production of prostaglandins (PGs) or their role in Rhinella arenarum oocyte maturation. In this study, we analysed the effect of arachidonic acid (AA) andprostaglandins (PGs) on maturation, activation and ...
Arias Torres, Ana Josefina   +2 more
core   +1 more source

Involvement of PLA2, COX and LOX in Rhinella arenarum oocyte maturation [PDF]

open access: yes, 2013
In Rhinella arenarum, progesterone is the physiological nuclear maturation inducer that interacts with oocyte surface and starts a cascade of events leading to germinal vesicle breakdown (GVBD).
Bühler, Marta Ines   +2 more
core   +1 more source

Reproductive Outcomes of In Vitro Fertilization and Fresh Embryo Transfer in Infertile Women With Adenomyosis: A Retrospective Cohort Study

open access: yesFrontiers in Endocrinology, 2022
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

open access: yeseLife, 2019
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

Research progress of immature oocyte in vitro maturation [PDF]

open access: yesYixue xinzhi zazhi
With the significant decline of China's birth rate, the role of assisted reproductive technology in alleviating low fertility is increasingly significant.
HUANG Zhiyi, DENG Chunlei
doaj   +1 more source

Effects of Pre-ovulatory Follicular Fluid of Repeat Breeder Dairy Cows on Bovine Fertility Transcriptomic Markers and Oocytes Maturation and Fertilization Capacity

open access: yesFrontiers in Veterinary Science, 2021
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

Maternal effects on oocyte quality in farmed Atlantic halibut (Hippoglossus hippoglossus L.) [PDF]

open access: yes, 2013
Atlantic halibut (Hippoglossus hippoglossus) oocyte quality is highly variable and one of the major bottlenecks during fry-production for on-growth in commercial Atlantic halibut farming.
Mommens, Maren
core   +2 more sources

Post-Translational Modifications in Oocyte Maturation and Embryo Development

open access: yesFrontiers in Cell and Developmental Biology, 2021
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]

open access: yesVeterinary World, 2020
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]

open access: yesHuman Reproduction Update, 1998
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

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