Results 31 to 40 of about 40,429 (263)

Post-Translational Modifications in Oocyte Maturation and Embryo Development

Frontiers 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]

Veterinary 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, Budi Santoso, Widjiati Widjiati   +2 more
doaj   +1 more source

The Making of a Competent Oocyte – A Review of Oocyte Development and Its Regulation

Journal of Animal Reproduction and Biotechnology, 2020
Assisted reproductive technologies (ART) merely depend on improving the oocyte maturation and their developmental competence to produce good quality embryos.
Hammed A. Tukur, Riyadh S. Aljumaah, Ayman Abdel-Aziz Swelum, Abdullah N. Alowaimer, Islam M. Saadeldin   +4 more
doaj   +1 more source

Diethylstilbestrol induces fish oocyte maturation [PDF]

Proceedings of the National Academy of Sciences, 2004
An endocrine-disrupting chemical, diethylstilbestrol (DES), a nonsteroidal estrogen, triggers oocyte maturation in fish. The morphology (the time course of the change in germinal vesicle breakdown) and an intracellular molecular event (the de novo synthesis of cyclin B) induced by DES were indistinguishable from ...
Toshinobu, Tokumoto, Mika, Tokumoto, Ryo, Horiguchi, Katsutoshi, Ishikawa, Yoshitaka, Nagahama   +4 more
openaire   +2 more sources

Relationships among tissues, biofluids, and otolith selenium concentrations in wild female burbot (Lota lota)

Integrated Environmental Assessment and Management, EarlyView., 2023
Abstract In the Lake Koocanusa‐Kootenai River system (Montana, USA and British Columbia, Canada), selenium (Se) contamination has become an international concern and is suspected to contribute to the observed burbot (Lota lota) population collapse. Due to our limited ability to sample burbot in Lake Koocanusa for monitoring studies, we used a reference
Stephanie D. Graves, Noëlie Molbert, David M. Janz, Lauren D. Hayhurst, Jessica E. Brandt, Lauren Timlick, Vince P. Palace   +6 more
wiley   +1 more source

Oocyte Maturation in Starfish

Cells, 2020
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

NAT10 Maintains OGA mRNA Stability Through ac4C Modification in Regulating Oocyte Maturation

Frontiers in Endocrinology, 2022
In vitro maturation (IVM) refers to the process of developing immature oocytes into the mature in vitro under the microenvironment analogous to follicle fluid.
Jiayu Lin, Yuting Xiang, Yuting Xiang, Jiana Huang, Haitao Zeng, Yanyan Zeng, Jiawen Liu, Taibao Wu, Qiqi Liang, Xiaoyan Liang, Jingjie Li, Chuanchuan Zhou   +11 more
doaj   +1 more source

In Vitro maturation of oocytes [PDF]

British Medical Bulletin, 2000
Only about 400 of the one million oocytes present at birth will be ovulated, while the rest will die by atresia. The ability to rescue oocytes destined to die and mature them in vitro would provide invaluable information about folliculogenesis and oocyte maturation, and could provide oocytes for infertile women. In vitro maturation (IVM) is challenging
K, Hardy, C S, Wright, S, Franks, R M, Winston   +3 more
openaire   +2 more sources

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source

Mutations in CCNB3 affect its location thus causing a multiplicity of phenotypes in human oocytes maturation by aberrant CDK1 activity and APC/C activity at different stages

Journal of Ovarian Research, 2023
Background Oocyte maturation arrest results in female infertility and the genetic etiology of this phenotype remains largely unknown. Previous studies have proven that cyclins play a significant role in the cell cycle both in meiosis and mitosis.
Congjing Wang, Meng Xi Chen, Yuan Zhang, Xue Bai, Qiqi Cao, Jian Han, Nana Zhang, Chun Zhao, Xiufeng Ling, Ximan Rui, Yichun Guan, Junqiang Zhang, Ran Huo   +12 more
doaj   +1 more source