Results 81 to 90 of about 53,055 (306)

Comparatively profiling the transcriptome of human, Porcine and mouse oocytes undergoing meiotic maturation

BMC Genomics
Background Oocyte maturation is a critical process responsible for supporting preimplantation embryo development and full development to term. Understanding oocyte gene expression is relevant given the unique molecular mechanism present in this gamete ...
Naru Zhou, Xin Wang, Yi Xia, Zongliang Liu, Lei Luo, Rentao Jin, Xianhong Tong, Zhenhu Shi, Zhichao Wang, Heming Sui, Yangyang Ma, Yunsheng Li, Zubing Cao, Yunhai Zhang   +13 more
doaj   +1 more source

HLA-G MOLECULES: FROM EMBRYO IMPLANTATION TO OOCYTE MATURATION

, 2009
Background Assisted reproduction technique (ART) pregnancy rates have not changed in recent years and an increased risk of twins, triplets or higher order pregnancies leads to a perinatal mortality and morbidity.
Rizzo, Roberta
core  

Temporal progression in migratory status and sexual maturation in European silver eels during downstream migration [PDF]

, 2011
The onset of downstream migration of European eels is accompanied by a cessation of feeding and the start of sexual maturation which stresses the link between metabolism and sexual maturation, also suggesting an important role for exercise.
Guerrero, M.A., Gerard de Laak, Thillart, G.E.E.J.M., Ma. Angeles Guerrero, Guido E. E. J. M. van den Thillart, Arjan P. Palstra, Jan P. G. Klein Breteler, Palstra, A.P., Klein Breteler, J.G.P.   +8 more
core   +1 more source

Paternal Caffeine Exposure Programs Offspring Stress Vulnerability via Sperm Dlk1‐Dio3 Imprinting‐Directed Remodeling of a Novel Neural Circuit

Advanced Science, EarlyView.
The study elucidates that paternal preconception stress can drive offspring hyperresponsivity of the stress system via hypomethylation of a specific DNA region in sperm. This key link is confirmed in a cohort of prospective fathers: the epigenetic alteration is associated with elevated stress hormone levels.
Mengxi Lu, Gaole Dai, Sen Zhu, Shuai Zhang, Tingting Wang, Yuan Meng, Fang Yang, Xiaoyi Han, Hui Wang, Hao Kou, Dan Xu   +10 more
wiley   +1 more source

in Vitro Maturation of Human Oocytes

Taiwanese Journal of Obstetrics and Gynecology, 2006
Immature oocyte retrieval followed by in vitro maturation (IVM) opens a new horizon for modern assisted reproductive technologies (ART). Recent studies in IVM make it a feasible alternative to in vitro fertilization. Antral follicle count is correlated with the pregnancy rate, so women with polycystic ovarian syndrome or polycystic ovaries are the best
Yu-Hung Lin, Jiann-Loung Hwang
openaire   +3 more sources

Molecular Mechanisms of Gonadotropin-Induced Oocyte Maturation

, 2004
In vitro maturation of oocytes is routinely utilized for the production of embryos for commercial as well as research purposes. The objectives of the research described in this dissertation were: 1) to examine the molecular mechanism involved in ...
Rodriguez, Karina Flores
core  

Activation of proteolysis during oocyte in vitro maturation

In vitro maturation (IVM) is a form of assisted reproductive technology (ART) applied to obtain mature oocytes in culture. Decline in IVM success rates by age has led consideration of novel approaches based on cellular dynamics.
Bulut, Berk, Bulut, B., Tepekoy, F., Karaoz, E., Tepeköy, Filiz, Karaöz, Erdal   +5 more
core   +1 more source

Natural Resistance to Ovarian Hyperstimulation Syndrome in Estrildid Finches Reveals Macrophage GPR183 as a Potential Therapeutic Target

Advanced Science, EarlyView.
Ovarian macrophage depletion reverses OHSS resistance in estrildid finches and exacerbates OHSS symptoms in rats. Activating macrophage GPR183 alleviates OHSS by reducing pro‐inflammatory factors, increasing immunomodulatory molecules, remodeling CD44/SDC4‐mediated communication, and restoring immune homeostasis.
Xiaofei Yan, Yongjie Huang, Jiabao Yang, Su Ma, Songsong Liu, Xuan Huang, Juergen Brosius, Huaping Zheng, Bing Yao, Li Chen, Shanshan Lai, Cheng Deng   +11 more
wiley   +1 more source

Stage‐Specific H3K14 and H3K23 Succinylation Orchestrates Insect Metamorphosis and Oogenesis

Advanced Science, EarlyView.
Stage‐specific succinylation of histone H3 at lysine 14 and 23 differentially controls insect metamorphosis and oogenesis through distinct GPCR‐PKC signaling cascades, revealing an evolutionarily conserved epigenetic mechanism that coordinates key life‐history traits.
Yu‐Pu Jing, Lunjie Li, Libin Yang, Lin‐Jie Zhang, Qiang Yan, Ci Zhang, Zanrong Wen, Guangze Yu, Qian Li, Shutang Zhou   +9 more
wiley   +1 more source

FSH priming and hormonal modulation of oocyte competence in in vitro maturation for infertility treatment: a systematic review and meta-analysis

Frontiers in Endocrinology
BackgroundDoes follicle-stimulating hormone priming improve reproductive outcomes in women undergoing in vitro maturation treatment for infertility?Follicle-stimulating hormone (FSH) is a key endocrine regulator of oocyte folliculogenesis and is crucial ...
Krystal Baysan Lin, Yungchen Chien, Jung-Hsiu Hou, Jung-Hsiu Hou, Yen-Chen Wu, Yen-Chen Wu, Ping Lun Lin, Li-Ting Chien, Chi-Huang Chen, Chi-Huang Chen   +9 more
doaj   +1 more source