The document discusses a study evaluating insulin, growth hormone, TNF-αR (P55) and IL-1 receptor antagonist (IL-1ra) as biochemical markers for severity of hepatitis C virus (HCV) genotype 4 infection before and after treatment with pegylated interferon α-2a and ribavirin. 54 HCV patients were divided into non-cirrhotic (Group A, n=42) and cirrhotic (Group B, n=12) groups. Treatment resulted in higher sustained virological response rates in non-cirrhotic patients. Insulin levels significantly increased and TNF-αR (P55) decreased in responding non-cirrhotic patients. Insulin and TNF