Abstract
Serum leptin levels are elevated in alcoholic liver cirrhosis and thus might be involved in the anorexia and hypermetabolism often seen in those patients. We hypothesized that the leptin system is modulated in patients with hepatitis C and might be affected by antiviral therapy. The aim of this study was to investigate the different leptin components in serum of patients with hepatitis C before, during and after interferon alpha and ribavirin therapy and in controls. 25 patients (11 female, 14 male) with chronic hepatitis C were compared with body mass index, gender and age-matched controls (n = 25). Patients were treated with interferon alpha alone (3 MU tiw) or in combination with ribavirin for 6-12 months. Free leptin and bound leptin levels were measured using specific radioimmunoassays before interferon therapy, at 12 weeks of therapy and after 3 months of follow-up. Free leptin levels were higher in female than in male subjects, both for patients (P < 0.01) and controls (P < 0.05). Bound leptin levels were elevated in both female (P < 0.05) and male (P < 0.001) patients compared to controls. No alteration of free leptin levels was found during therapy, whereas bound leptin levels decreased after 3 months of therapy (P < 0...Continue Reading
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