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• W2314831330 abstract "AIMS: To evaluate the oxidative stress parameters before, during and after interferon treatment. PATIENTS/METHODS: Twenty patients were treated with interferon α2b 5 MU, three times a week, subcutaneously, for 12 months. Liver biopsy was performed six months before treatment and at the six month follow-up. Chromosomal breakage studies were evaluated by the adjusted clastogenic score (ACS, normal value [nv] 1.1±2.4%). Plasma malondialdehyde (MDA) was measured according to the Yagi method (nv 6.6±1.4 nmol/mL) and total thiols using the Ellman’s reagent (DTNB) (nv 9.8±1.3 µmol/g protein). A serum marker of fibrogenesis, the amino-terminal propeptide of Procollagen type III (PIIIP), was quantified by radioimmunoassay (nv 0.37±0.18 U/L). RESULTS: Compared with reference samples, the plasma of patients before treatment showed an increase of ACS (9.2±3.2%, P<0.001); higher MDA values (12.6±2.7nmol/mL, P<0.001) and total plasma sulfhydryl groups (t-SH) were decreased (6.3±1.1 µmol/g protein, P<0.001). During treatment and at the follow-up, a decrease in ACS was noticed in all patients (P<0.001), but without normalization; a decrease in MDA was seen, with progressive normalization until the end of the follow up only in sustained responders (P<0.003), while an increase of t-SH was seen, with progressive normalization until the end of follow up in all patients (P<0.005). A positive correlation of ACS with grading of inflammation was found (r=0.52, P<0.03) but not with fibrosis staging. In contrast, plasma MDA correlates with fibrosis staging (r=0.51, P<0.03) and with PIIIP (r=0.57, P<0.03) but without grading of inflammation. CONCLUSIONS: The present study confirmed the presence of oxidative stress in chronic hepatitis C patients. Interferon promotes a long term inhibition of oxidative stress with concomitant improvement of activity and fibrosis. In the management of chronic hepatitis C, adjuvant therapy with antioxidants could be useful." @default.
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• W2314831330 date "2003-01-01" @default.
• W2314831330 modified "2023-10-01" @default.
• W2314831330 title "Oxidative Stress in Chronic Hepatitis C: The Effect of Interferon Therapy and Correlation with Pathological Features" @default.
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• W2314831330 doi "https://doi.org/10.1155/2003/710693" @default.
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