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  • Title: Regulation of growth hormone (GH), insulin-like growth factor (IGF)I, IGF binding proteins -1, -2, -3 and GH binding protein during progression of liver cirrhosis.
    Author: Kratzsch J, Blum WF, Schenker E, Keller E.
    Journal: Exp Clin Endocrinol Diabetes; 1995; 103(5):285-91. PubMed ID: 8536056.
    Abstract:
    The aim of this study was to investigate the regulation of various proteins of the GHIGF axis during progression of liver failure and to search for potential prognostic markers of functional hepatic reserve. Serum levels of growth hormone (GH) and high affinity growth hormone binding protein (GHBP), insulin-like growth factor I (IGF-I) and IGF binding proteins (IGFBP) -1, -2 and -3 were determined in patients with liver cirrhosis. A continuous decline in the concentrations of IGF-I, IGFBP-3 and serum GH-binding activity (GHBP) was observed during progression of cirrhosis and the data correlated significantly with choline esterase, total serum protein and the Child score. In addition, GHBP showed a significant correlation with the enzymatic activity of glutamate dehydrogenase or transaminases and seems so to be influenced by the degree of liver cell damage. In contrast, IGFBP-1 and IGFBP-2 levels were significantly elevated in preterminal disease suggesting an upregulatory mechanism is still effective in this situation. Only when liver function had markedly deteriorated, the serum levels of these two parameters decreased again, possibly due to an impaired synthesis. The excellent correlation between the serum levels of IGF-I (r = -0.64, p < 0.001) or IGFBP-3 (r = -0.67, p < 0.001) and the Child score index suggests that they reflect the hepatic functions just as conventional indicators. For an appropriate interpretation of the liver function the measurement of the growth related peptides can be a valuable tool to estimate pathological alteration in the functional hepatic reserve or in the glucose homeostasis.
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