Effect of insulin-like growth factor-1 (IGF-1) on the gluconeogenesis in calf hepatocytes cultured in vitro

被引：1
|
作者：
Jianguo Wang
Xiaoyan Zhu
Chengzhen Chen
Xiaobing Li
Yan Gao
Peng Li
Yi Zhang
Miao Long
Zhe Wang
Guowen Liu
机构：
[1] Jilin University,College of Animal Science and Veterinary Medicine
[2] Jilin University,Laboratory Animal Center
[3] Shenyang Agriculture University,College of Animal Science and Veterinary Medicine
来源：
Molecular and Cellular Biochemistry | 2012年 / 362卷
关键词：
IGF-1; PC; PEPCK; Hepatocyte;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The major role of insulin-like growth factor-1 (IGF-1) in the liver is to mediate glucose uptake in hepatocytes to synthesize glycogen and maintain blood glucose homeostasis. In this study, to evaluate the role of IGF-1 on gluconeogenesis and nutrient metabolism in dairy cattle, pyruvate carboxylase (PC) and phosphoenolpyruvate carboxykinase (PEPCK) expression and enzyme activity were evaluated in primary cultures of bovine hepatocytes treated with different concentrations of IGF-1 by quantitative polymerase chain reaction and spectrophotometry, respectively. The results showed that expression of PC and PEPCK were significantly lower in bovine hepatocytes by IGF-1 treatment in test group compare to the control group (P < 0.01). As IGF-1 concentration increased, PC and PEPCK enzyme activity in bovine hepatocytes decreased. Evaluating PC and PEPCK mRNA levels and enzyme activity may thus be useful to monitor subclinical ketosis in dairy cows.
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页码：87 / 91
页数：4
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