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2001 | 49 | 4 | 311-316

Article title

The levels of IL-1beta, IL-4 and IL-6 in the serum and the liver tissue of chronic HCV-infected patients


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The pro-inflammatory interleukines play a major role in the progress of chronic hepatitis C. Among the patients with chronic HCV infection, the morphology of the liver was assessed and the levels of serum and liver-tissue IL-1beta, IL-4 and IL-6 were determined. The levels of the cytokines were related to the liver tissue changes. RNA-HCV was measured by the RT-PCR method. Cytokine levels of the serum and liver tissue were measured by the Quantikine High Sensitivity test. The levels of serum IL-1beta, IL-4 and IL-6 (0.221, 0.104 and 1.393 pg/ml) in all HCV patients were higher in comparison with healthy adults (0.188, 0.025 and 0.600 pg/ml). The levels of liver tissue IL-1beta, IL-4 and IL-6 (4291.3, p<0.05; 1624.6, p<0.05; 1158.7 pg/g protein) in all HCV patients were higher compared to the patients with liver cirrhosis without HBV or HCV infection (2319.9, 553.6 and 756.2 pg/g protein). Patients with HCV infection demonstrated significant correlation between serum and liver-tissue levels of IL-1beta (Pearson: 0.61, p<0.05) and IL-4 (Pearson: 0.51). The level of serum IL-6 in patients with moderate chronic active hepatitis was higher when compared to the patients with mild chronic persistent hepatitis. Among the patients with mild chronic persistent hepatitis, the levels of liver tissue IL-6 were higher compared with those with moderate chronic active hepatitis. There was no correlation between histology changes and the levels of serum and liver-tissue IL-1beta and IL-4.





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T.W. Lapinski, Department of Infectious Diseases, Medical Academy of Bialystok, Zurawia 14, 15-540 Bialystok, Poland


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