Results 21 to 30 of about 640,334 (311)

The boosting effects of melatonin on the expression of related genes to oocyte maturation and antioxidant pathways: a polycystic ovary syndrome- mouse model

Journal of Ovarian Research, 2022
Background Melatonin, as a free radical scavenger exhibiting genomic actions, regulates the antioxidant genes expression and apoptosis mechanisms. In polycystic ovary syndrome (PCOS) patients, an imbalance between free radicals and antioxidants in ...
Fatemeh Nikmard, Elham Hosseini, Mehrdad Bakhtiyari, Mahnaz Ashrafi, Fardin Amidi, Reza Aflatoonian   +5 more
doaj   +1 more source

Follicular size affects the meiotic competence of in vitro matured prepubertal and adult oocytes in sheep [PDF]

, 1999
Non-atretic follicles dissected from prepubertal and adult ovaries were allocated in three groups: a) < 1 mm; b) 1-2 mm; c) > 2 mm. After 24 h of maturation, a lower percentage of adult oocytes from group a (P < 0.01) reached metaphase II than ...
Bogliolo, Luisa, Ledda, Sergio, Leoni, Giovanni Giuseppe, Naitana, Salvatore   +3 more
core   +2 more sources

Effect of oocyte collection techniques and maturation media on in vitro maturation of buffalo oocytes

Indian Journal of Animal Sciences, 2014
The study was conducted to know the effect of oocyte collection techniques and various maturation media on in vitro maturation of buffalo oocytes obtained from slaughterhouse derived ovaries.
C F CHAUDHARI, H J DERASHRI, SANDHYA S CHAUDHARY, GOPAL PURI, L C MODI   +4 more
doaj   +1 more source

Beneficial Effects of Catalpol Supplementation during In Vitro Maturation of Porcine Cumulus-Oocyte Complexes

Antioxidants, 2023
Oxidative stress degrades oocytes during in vitro maturation (IVM). Catalpol, a well-known iridoid glycoside, exhibits antioxidant, anti-inflammatory, and antihyperglycemic effects. In this study, catalpol supplementation was tested on porcine oocyte IVM
Yanxin Wang, Ye Xu, Sijia Li, Xi Yan, Xiaofen Yang, Mengjia Chen, Yun Wang, Ruru Jia, Dongping Zhou, Deshun Shi, Fenghua Lu   +10 more
doaj   +1 more source

Trichothecenes NIV and DON modulate the maturation of murinedendritic cells [PDF]

, 2010
Nivalenol (NIV) and Deoxynivalenol (DON), mycotoxins of the trichothecene family are considered very common food contaminants. In this work, we investigated whether the immunotoxic effects ascribed to these trichothecenes may be mediated by perturbations
Bergamo P., D’Arienzo R., Luongo D., Rossi M., SEVERINO, LORELLA   +4 more
core   +1 more source

Effects of green tea polyphenols, insulin-like growth factor I and glucose on developmental competence of bovine oocytes

Revista Brasileira de Zootecnia, 2012
The present study examined the effects of green tea polyphenols (GTP), insulin-like growth factor-I (IGF-I) and glucose on oocyte in vitro maturation, subsequent embryo development and blastocyst quality in bovine.
Zhengguang Wang, Chunquan Fu, Songdong Yu   +2 more
doaj   +1 more source

Melatonin Restores the Developmental Competence of Heat Stressed Porcine Oocytes, and Alters the Expression of Genes Related to Oocyte Maturation

Animals, 2021
Melatonin enhances the quality and in vitro maturation (IVM) of oocytes under heat stress (HS), but the mechanism of melatonin in reducing HS injury on oocytes is not fully understood.
Ling Yang, Zimo Zhao, Maosheng Cui, Leying Zhang, Qianjun Li   +4 more
doaj   +1 more source

Progress in the Approach to In Vitro Maturation: Biphasic (Capacitation) In Vitro Maturation

Fertility & Reproduction
Background: The clinical utility of early in vitro maturation (IVM) protocols was limited, largely due to asynchronous maturation of oocytes resulting in compromised cytoplasmic competence and lower rates of fertilisation, embryo development, and ...
Lan N. Vuong, Johan Smitz, Robert B. Gilchrist, Tuong M. Ho   +3 more
doaj   +1 more source

In vitro developmental competence of prepubertal goat oocytes cultured with recombinant activin-A

Animal, 2014
The present study was designed to evaluate the effect of activin-A during the in vitro oocyte maturation (IVM) and in vitro embryo culture (IVC) on nuclear maturation, blastocyst yield and blastocyst quality of prepubertal goat oocytes.
S. Hammami, D. Izquierdo, M.G. Catalá, M.T. Paramio, R. Morató   +4 more
doaj   +1 more source

Effect of kisspeptin on in vitro maturation of sheep oocytes [PDF]

Veterinary World, 2017
Aim: The aim of this study was to investigate the effect of kisspeptin (KP) on in vitro maturation (IVM) of sheep oocytes aspirated from the ovaries collected from slaughterhouse.
Priyanka Byri, Arunakumari Gangineni, K. Ramachandra Reddy, K. B. P. Raghavender   +3 more
doaj   +1 more source