Effects of forskolin on secrtion of insulin like growth factor-1 in the perfused rat liver model
1999
Kang, C.W. | Lee, H.I. (Chonbuk National University, Chonju (Korea Republic). Bio-Safety Research Institute) | Lee, D.Y. (Chonbuk National University, Chonju (Korea Republic). Department of Pediatrics, Medical School)
The insulin-like growth factor-I(IGF-I) is an important metabolic factor involved in cell growth and metabolism. Although secretion of IGF-I in rat liver is regulated by growth hormone, the effects of forskolin, adenylate cyclase activator, on secretion of IGF-I have not been reported. Therefore, a modified perfused rat liver model was used to investigate the regulatory effects of forskolin on IGF-I secretion in this experiment. The results were summerized as follows: 1. Modified perfused rat liver model was not changed to aspartate aminotransferase(AST), alanine aminotransferase(ALT) and lactic dehydrogenase(LDH) secretion in time. 2. The IGF-I secretion in hepatic cell was increased by forskolin(10-5, 10-6 and 10-7M) in a dose-dependent manner as compared with those of the controls, and significantly increased by 10-5 and 10-6M forskolin(p0.05). 3. Secretion of glucose in hepatic cell significantly was decreased by 10-5M forskolin as compared with those of controls(p0.05). These results suggest that forskolin may be involved in the regulation of IGF-I secretion in the perfused rat liver.
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