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Abstract
Özyilkan E, Tatar G, Hacibektaşoglu A, Kayhan B, Telatar H. Impaired lipopolysaccharide-induced interleukin-1-beta production in patients with anti-hepatitis C virus antibody-positive chronic liver disease. Scand J Gastroenterol 1994;29:280-283.
The aim of our study was to determine the role of cytokine interleukin-1-beta (IL-1-beta) in patients with chronic hepatitis C virus (HCV) infection. Twenty-eight patients with chronic HCV infection were studied and compared with 18 healthy subjects. IL-1-beta levels were measured with an enzyme-linked immunosorbent assay in plasma and in supernatants of peripheral blood mononuclear cells (PBMC) incubated alone or in the presence of lipopolysaccharide (LPS). No IL-1-beta was found in plasma or unstimulated PBMC supernatants. The mean LPS-induced IL-1-beta production was 20.0 ± 4.0ng/ml in patients with chronic HCV infection and 29.4 ± 3.7ng/ml in the control group. The patients had significantly lower levels of LPS-induced IL-1-beta than the control group (p < 0.00001). No difference in LPS-induced IL-1-beta production was found in patients in relation to the histologic diagnosis (p<0.05). There was no correlation between LPS-induced IL-1-beta production and serum alanine aminotransferase levels in patients with chronic HCV infection (r = 0.37, p > 0.05). Although limited to a small number of cases, our results suggest that LPS-induced IL-1-beta production by PBMC is impaired in patients with chronic HCV infection.