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  • Title: Expressions of molecules associated with hepatocyte growth factor activation after hepatectomy in liver cirrhosis.
    Author: Kaido T, Oe H, Yoshikawa A, Okajima A, Imamura M.
    Journal: Hepatogastroenterology; 2004; 51(56):547-51. PubMed ID: 15086199.
    Abstract:
    BACKGROUND/AIMS: The activation pathway of hepatocyte growth factor (HGF), including HGF activator (HGFA) and HGFA inhibitor-1, 2 (HAI-1, 2), has recently been clarified. The present study examined mRNA expressions of HGF, HGFA and HAI-1 following partial hepatectomy in normal and cirrhotic rats. METHODOLOGY: Liver cirrhosis was induced by intraperitoneal injections of dimethylnitrosamine. Two weeks after, the cirrhotic and normal rats underwent 70% hepatectomy and the liver regeneration rate, DNA synthesis of hepatocytes, plasma HGF level, and mRNA expressions of HGF, HGFA, and HAI-1 in the liver, spleen, and lung were examined at different times. RESULTS: Liver regeneration in the cirrhotic rats was deteriorated with a later peak of hepatocellular DNA synthesis. Hepatic HGF mRNA and splenic HAI-1 mRNA were upregulated and liver HGFA mRNA was downregulated in the cirrhotic rats. CONCLUSIONS: Insufficient HGF activation both by a reduced expression of hepatic HGFA and an increased expression of splenic HAI-1 may be one of the reasons for the impaired liver regeneration in cirrhosis.
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