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

Balance between pro and anti-inflammatory cytokines in patients with acute alcoholic hepatitis.

The ability of endogenous IL-10 to modulate inflammatory response and to limit hepatotoxicity has been shown in several models of liver injury. AIMS: The objectives of this study were to evaluate the relationship between liver disease and the balance between pro and anti-inflammatory cytokines in acute alcoholic hepatitis. METHODS: Twenty-five patients with pure steatosis, 17 with cirrhosis and mild acute alcoholic hepatitis (discriminant function value<32) and 41 patients with cirrhosis and severe acute alcoholic hepatitis (discriminant function value >=32) were studied. Plasma levels of interleukin 10 (IL-10) and soluble TNF receptors (TNFsRp75 and 55) were analyzed using ELISA assays. Hepatocyte proliferative activity was assessed with proliferating cell nuclear antigen labeling index (PCNA-LI) on formalin-fixed paraffin embedded liver biopsy specimens. RESULTS: In patients with steatosis, cirrhosis with mild and severe acute alcoholic hepatitis, the plasma levels of IL-10 were higher (P<0.05) than in healthy controls. Between day 1 and day 8, the TNFsRp55/IL-10 ratio increased by 137 +/- 47 in the 10 patients with severe acute alcoholic hepatitis treated with prednisolone who died within 2 months and by 9.3 +/- 14 in the 19 patients still alive at 2 months (P=0.031). In patients with severe acute alcoholic hepatitis, PCNA-LI on liver biopsy was negatively correlated with the TNFsRp55/IL-10 ratio increase from day 1 to day 8 (r=- 0.42, P=0.11). PCNA-LI was positively correlated with TNFsRp75/TNFsRp 55 ratio increase from day 1 to day 15 (r=0.52; p<0.05). CONCLUSION: Our data suggest the anti-inflammatory system is up-regulated in patients with alcoholic liver disease. Nevertheless, in patients with severe acute alcoholic hepatitis, IL-10 production seems insufficient to modulate TNF-alpha cytotoxicity mediated by TNFRp55.[1]

References

  1. Balance between pro and anti-inflammatory cytokines in patients with acute alcoholic hepatitis. Naveau, S., Balian, A., Capron, F., Raynard, B., Fallik, D., Agostini, H., Grangeot-Keros, L., Portier, A., Galanaud, P., Chaput, J.C., Emilie, D. Gastroenterol. Clin. Biol. (2005) [Pubmed]
 
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