Buscar
Mostrando ítems 1-10 de 1024
Interação YAP1-TEAD regula a cascata de sinalização do EGF em células do cumulus em bovinos
(Universidade Federal de Santa MariaBrasilMedicina VeterináriaUFSMPrograma de Pós-Graduação em Medicina VeterináriaCentro de Ciências Rurais, 2020-02-07)
The mechanism of cumulus cell (CC) expansion and ovulation in vivo is triggered by LH surge in granulosa cells and CC, which culminating in a series of paracrine and autocrine communications between these ovarian cells. ...
Fibroblast growth factor 2 regulates cumulus differentiation under the control of the oocyte
(Springer, 2019-05-01)
PurposeWe first assessed regulation of FGF2 expression in cumulus cells by FSH and oocyte-secreted factors during in vitro maturation (IVM). Then, we tested the hypothesis that FGF2 regulates meiotic progression, cumulus ...
Cumulus cell apoptosis changes with exposure to spermatozoa and pathologies involved in infertility
(2009)
Objective: To determine whether the incidence of apoptosis in mature oocyte cumulus cells changes after insemination related to infertility. Design: Prospective study. Setting: Public hospital and university. Patient(s): ...
The importance of manganese in the cytoplasmic maturation of cattle oocytes: blastocyst production improvement regardless of cumulus cells presence during in vitro maturation
(Cambridge University Press, 2016-02)
Adequate dietary intake of manganese (Mn) is required for normal reproductive performance in cattle. This study was carried out to investigate the effect of Mn during in vitro maturation of bovine cumulus–oocyte complexes ...
O sistema peptídeos natriuréticos está presente no complexo cumulus-oócito e regula o reinício da meiose em bovinos
(Universidade Federal de Santa MariaBRMedicina VeterináriaUFSMPrograma de Pós-Graduação em Medicina Veterinária, 2013-02-20)
The process of meiotic resumption in oocytes, arrested since fetal life, and the
expansion of compact layers of cumulus cells is triggered by intrafollicular mediators
stimulated by LH. These events are extremely complex. ...
Influence of the cumulus and gonadotropins on the metabolic profile of porcine cumulus-oocyte complexes during in vitro maturation
(Wiley Blackwell Publishing, Inc, 2012-10)
The aim of this work was to examine the influence of the cumulus and gonadotropins on the metabolic profile of porcine cumulus oocyte complexes (COCs) during in vitro maturation. Immature COCs were assigned to morphological ...
Time course of the meiotic arrest in sheep cumulus-oocyte complexes treated with roscovitine
(Cambridge University Press, 2015)
Temporary meiosis arrest with cyclin-dependent kinases inhibitors has been proposed in order to improve the quality of in vitro matured oocytes. In sheep, however, this phenomenon has been rarely investigated. Therefore, ...
Effect of melatonin on in vitro maturation of bovine cumulus-oocyte complexes and DNA damage of cumulus cells
(Wiley-Blackwell Publishing, Inc, 2008-07-01)
Effect of melatonin on in vitro maturation of bovine cumulus-oocyte complexes and DNA damage of cumulus cells
(Wiley-Blackwell Publishing, Inc, 2008-07-01)