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This study was conducted to determine the effect of meiotic status, cumulus cells and cytoskeleton stabilizer on ovine oocyte vitrification. Oocytes at various developmental stages including GV (germinal vesicle), GVBD (GV breakdown), MI (metaphase I) and MII (metaphase II) were vitrified using open pulled straw (OPS) method. After warming, the survival rates were determined based on the morphological...
Obesity in pregnant women is a growing public health concern. The placenta is a source of cytokines which can induce maternal gestational insulin resistance and alter nutrient transport to the fetus. Obesity induces placental inflammation at term, but the impact of obesity on placental inflammation earlier in pregnancy has not been defined. Using sheep as an experimental model, we hypothesized that...
Both protein kinase B (Akt) and extracellular signal-regulated kinase 1/2 (ERK1/2) are down-stream components of the insulin/insulin like growth factor-1 (IGF-1) signaling pathway. AMP-activated protein kinase (AMPK) is known to sensitize cells to insulin/IGF-1 signaling. The objective of this study was to assess the activity of AMPK and its role in the observed down-regulation of insulin/IGF-1 signaling...
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