Zobrazeno 1 - 10
of 625
pro vyhledávání: '"oocyte competence"'
Publikováno v:
Animal Biotechnology, Vol 35, Iss 1 (2024)
Oocytes spontaneously resume meiosis following their liberation from follicles, preventing full competence acquisition. Biphasic IVM (CAPA-IVM) maintains oocytes in meiotic arrest to improve developmental competence, and it specially affects poorly d
Externí odkaz:
https://doaj.org/article/9a55c2e11cf94394acf4ea2c99c8299f
Autor:
Yuezhou Chen, Minyu Xie, Siyun Wu, Zehua Deng, Yan Tang, Yiqing Guan, Yun Ye, Qiandong He, Lei Li
Publikováno v:
Frontiers in Endocrinology, Vol 15 (2024)
BackgroundPolycystic ovary syndrome (PCOS) is a common heterogeneous disorder linked with endocrine and metabolic disturbances. The underlying mechanism of PCOS, especially its effect on oocyte competence, remains unclear. The study aimed to identify
Externí odkaz:
https://doaj.org/article/ec16ddb534ae4b0b8acf27ac71e3c5ad
Autor:
Fuhua Xu, Konstantin Bagnjuk, Nuria Marti-Gutierrez, Sathya Srinivasan, Artur Mayerhofer, David Lee, Tanja Pejovic, Shoukhrat Mitalipov, Jing Xu
Publikováno v:
Frontiers in Endocrinology, Vol 15 (2024)
Anti-Müllerian hormone (AMH) is a key paracrine/autocrine factor regulating folliculogenesis in the postnatal ovary. As antral follicles mature to the preovulatory stage, AMH production tends to be limited to cumulus cells. Therefore, the present st
Externí odkaz:
https://doaj.org/article/6428444ba94d44d68e258779a7bf7c03
Autor:
Jingjing Cai, Xiangmin Luo, Zhengyao Wang, Zixuan Chen, Donghong Huang, Hui Cao, Jing Chen, Jinxiang Wu
Publikováno v:
Heliyon, Vol 10, Iss 9, Pp e29879- (2024)
Background: Polycystic ovary syndrome (PCOS) is main cause of anovulatory infertility in women with gestational age. There are currently four distinct phenotypes associated with individualized endocrinology and metabolism. Growth differentiation fact
Externí odkaz:
https://doaj.org/article/d40edb29f0984288be4b2ec7367339e3
Publikováno v:
Bulgarian Journal of Veterinary Medicine, Vol 26, Iss 4, Pp 589-596 (2023)
The objective of the current study was to evaluate the effect of lactation on oocyte quality and in vitro embryo production in Gyr (Bos indicus) cows. A total of 187 multiparous cows (92 lactating and 95 non-lactating) were subjected to a single sess
Externí odkaz:
https://doaj.org/article/988dd5e23501424d91fdd3a015526577
Publikováno v:
Animals, Vol 14, Iss 15, p 2280 (2024)
Rectal and vaginal temperatures are utilised in both in vivo and in vitro models to study the effects of heat stress on oocyte competence and embryo viability in cattle. However, uterine temperature increases by only 0.5 °C in heat-stressed cows, si
Externí odkaz:
https://doaj.org/article/3591952a3b514b5da80379994dbb78ce
Autor:
Micaela Navarro, Tomás Fanti, Nicolas Matias Ortega, Magalí Waremkraut, Francisco Guaimas, Adrian Ángel Mutto, Carolina Blüguermann
Publikováno v:
Animals, Vol 14, Iss 13, p 1893 (2024)
In vitro embryo production is a widely applied technique that allows the expansion of genetics and accelerated breeding programs. However, in cattle, this technique still needs improvement in order to reach quality and pregnancy rates comparable to i
Externí odkaz:
https://doaj.org/article/6206effeaf7347069b3735fd197669ef
Publikováno v:
Life, Vol 14, Iss 5, p 554 (2024)
(1) Background: In this paper we aim to study the relationship between the expression levels of molecules involved in apoptotic/survival pathways, considered as molecular markers of oocyte competence (i.e., AKT, p-AKT, ERK1/2, and p-ERK1/2) in mural
Externí odkaz:
https://doaj.org/article/8b1695e8aa5a4a52b71ed9a4a261b3e2
Autor:
Bruce I. Rose, Kevin Nguyen
Publikováno v:
Reproductive Medicine, Vol 4, Iss 1, Pp 65-73 (2023)
Purpose: In vitro maturation (IVM) continues its evolution as new ideas are introduced with the objective of making the IVM procedure easier and more effective. This study combines ideas believed likely to improve the IVM outcome or make the IVM oocy
Externí odkaz:
https://doaj.org/article/ee3377d9fa514d5a93e46c56ffa219f9
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