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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Hepatoprotective effects of insulin-like growth factor I in rats with carbon tetrachloride-induced cirrhosis.

BACKGROUND & AIMS: Bioavailability of insulin-like growth factor (IGF-I) is reduced in liver cirrhosis. The aim of this study was to analyze the effect of IGF-I on liver histopathology and function in experimental cirrhosis. METHODS: Rats received CCl4 inhalations for 11 or 30 weeks (protocols 1 and 2, respectively) and were treated with 2 microg x 100 g body wt(-1) x day(-1) IGF-I (group CI + IGF) or saline (group CI) on weeks 13 and 14 (protocol 1) or on weeks 28-30 (protocol 2). Normal rats were studied in parallel. RESULTS: Serum albumin and total protein levels were reduced in CI but not in CI + IGF rats compared with normal rats. Clotting factors II, VII, and X were significantly greater in CI + IGF than in CI rats. Liver lipid peroxidation products were significantly increased in CI but not in CI + IGF rats, and liver fibrosis was less pronounced in CI + IGF than in CI animals. The activities of antioxidant enzymes and mitochondrial transmembrane potential were reduced compared with normal animals in CI but not in CI + IGF rats. CONCLUSIONS: IGF-I improves liver function and reduces oxidative liver damage and fibrosis in rats with compensated or advanced liver cirrhosis. Improved mitochondrial function could play a role in the hepatoprotective effect of this hormone.[1]

References

  1. Hepatoprotective effects of insulin-like growth factor I in rats with carbon tetrachloride-induced cirrhosis. Castilla-Cortazar, I., Garcia, M., Muguerza, B., Quiroga, J., Perez, R., Santidrian, S., Prieto, J. Gastroenterology (1997) [Pubmed]
 
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