Results 21 to 30 of about 40,429 (263)

Transcriptomic profiles reveal the characteristics of oocytes and cumulus cells at GV, MI, and MII in follicles before ovulation

Journal of Ovarian Research, 2023
Background The oocyte and its surrounding cumulus cells (CCs) exist as an inseparable entity. The maturation of the oocyte relies on communication between the oocyte and the surrounding CCs.
Yena Hu, Ran Zhang, Shuoping Zhang, Yaxing Ji, Qinwei Zhou, Lizhi Leng, Fei Meng, Fei Gong, Guangxiu Lu, Ge Lin, Liang Hu   +10 more
doaj   +1 more source

Molecular cloning, expression patterns and functional characterization of Gpr3 in the orange-spotted grouper (Epinephelus coioides)

Aquaculture Reports, 2022
G Protein-coupled receptor 3 (Gpr3) plays a critical role in maintaining oocyte meiotic arrest in mammals. To ascertain the function of Gpr3 in oocyte maturation in fish, the Gpr3 cDNA was cloned from orange-spotted grouper (Epinephelus coioides).
Fengying Yan, Xinxun Xiao, Lin Tang, Yikun Song, Chong Han, Chongwei Wang, Jin Zhang, Haoran Lin, Chunren Huang, Jiarui He, Yong Zhang, Shuisheng Li   +11 more
doaj   +1 more source

Oocyte In Vitro Maturation with Crude Sperm Extract Protein of Bull's Spermatozoa

Journal of Experimental Life Science, 2016
Oocyte In vitro maturation (IVM) is one of the important parts for in vitro fertilization (IVF). The success of oocyte maturation is influenced by the composit ion and the quality of IVM medium.
Bilqis Bilqis, Sri Rahayu, Gatot Ciptadi
doaj   +1 more source

Induction and inhibition of oocyte maturation by EDCs in zebrafish

Reproductive Biology and Endocrinology, 2005
Background Oocyte maturation in lower vertebrates is triggered by maturation-inducing hormone (MIH), which acts on unidentified receptors on the oocyte surface and induces the activation of maturation-promoting factor (MPF) in the oocyte cytoplasm.
Tokumoto Mika, Tokumoto Toshinobu, Nagahama Yoshitaka   +2 more
doaj   +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

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

Frontiers 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, Tingting Liang, Wen Zhang, Wen Zhang, Wen Zhang, Wen Zhang, Wen Zhang, Ningning Pan, Ningning Pan, Ningning Pan, Ningning Pan, Ningning Pan, Bing Han, Bing Han, Bing Han, Bing Han, Bing Han, Rong Li, Rong Li, Rong Li, Rong Li, Rong Li, Caihong Ma, Caihong Ma, Caihong Ma, Caihong Ma, Caihong Ma   +26 more
doaj   +1 more source

Oocyte maturation and embryonic failure [PDF]

Human 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

The regulation of oocyte maturation and ovulation in the closest sister group of vertebrates

eLife, 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, Akira Shiraishi, Tomohiro Osugi, Tsuyoshi Kawada, Honoo Satake   +4 more
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

Frontiers 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, Mehran Ghaemi, Mehdi Azari, Abdolah Mirzaei, Samad Azarkaman, Yusof Torfi   +5 more
doaj   +1 more source

Research progress of immature oocyte in vitro maturation [PDF]

Yixue 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