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Efeitos dos fatores secretados pelo oócito (OSF) sobre a diferenciação das células do cumulus durante a maturação in vitro (MIV) em bovinos
(Universidade Estadual Paulista (Unesp), 2016-11-04)
O oócito é responsável por regular os mecanismos da maturação do complexo cumulus oócito (COC) principalmente via secreção de fatores. parácrinos.Dentre os fatores secretados pelo oócito (OSF) desta-se o fator de crescimento ...
Detection of bovine herpesvirus 1 in cumulus-oocyte complexes of cows
(Research in Veterinary Science, 2019)
In vitro maturation impacts cumulus-oocyte complex metabolism and stress in cattle
(Bioscientifica Ltd, 2017-12-01)
The influence of in vitro maturation (IVM) in oocytes is still not totally understood. The aim of this study was to determine the influence of IVM on the metabolism and homeostasis of bovine cumulus-oocyte complexes. In ...
Granulocyte-macrophage colony stimulating factor (GM-CSF) enhances cumulus cell expansion in bovine oocytes
(BIOMED CENTRAL LTD, 2013-06-24)
Background: The objectives of the study were to characterize the expression of the α- and β-subunits of
granulocyte-macrophage colony stimulating factor (GM-CSF) receptor in bovine cumulus cells and oocytes and to
determine ...
Paracrine and autocrine factors in the differentiation of the cumulus-oocyte complex
(Brazilian Coll Animal Reproduction, 2012-07-01)
A better understanding of the paracrine and autocrine regulatory loops within the cumulus-oocyte complex (COC) is fundamental for the improvement of in vitro maturation (IVM) outcomes in humans and domestic species. This ...
The antioxidant dimethylthiourea improves in vitro fertilization efficiency and decreases cumulus cells apoptosis in pigs
(Csiro Publishing, 2019-09)
Abattoir ovaries, which are the main source of oocytes for reproductive biotechnologies, arrive at the laboratory under ischaemic conditions. Reoxygenation generates reactive oxygen species (ROS) in ischaemic tissues, which ...
Hyaluronidase Alters the Lipid Profile of Cumulus Cells as Detected by MALDI-TOF MS and Multivariate Analysis
(Springer, 2014-09-01)
This research aimed to study the changes in lipid composition in cumulus cells using hyaluronidase according to the intracytoplasmic sperm injection protocol commonly used in human reproduction clinics. the lipid extraction ...