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IL28B polymorphism as a predictor of antiviral response in chronic hepatitis C

World Journal of Gastroenterology 2012年第35期18卷 4892-4897页

作者： Andrzej Ciela Monika Bociaga-Jasik Iwona Sobczyk-Krupiarz Mikolaj K Glowacki Danuta Owczarek Dorota Cibor Marek Sanak Tomasz Mach Department of Gastroenterology Hepatology and Infectious DiseasesJagiellonian University Medical College Department of Molecular Biology and Clinical Genetics II Department of Internal MedicineJagiellonian University Medical College

AIM： To evaluate the effect of single nucleotide poly- morphisms of interleukin （IL）-28B, rs12979860 on progression and treatment response in chronic hepatitis C. METHODS： Patients （n = 64; 37 men, 27 women; mean age, 44 ＋ 12 years） with chronic hepatitis C, genotype 1, received treatment with peg-interferon plus ribavirin. Genotyping of rs12979860 was per- formed on peripheral blood DNA. Histopathological assessment of necroinflammatory grade and fibrosis stage were scored using the METAVIR system on a liver biopsy sample before treatment. Serum viral load, ami- notransferase activity, and insulin level were measured. Insulin resistance index, body mass index, waist/hip ratio, percentage of body fat and fibrosis progression rate were calculated. Applied dose of interferon and ribavirin, platelet and neutrophil count and hemoglobin level were measured. RESULTS： A sustained virological response （SVR） was significantly associated with IL28B polymorphism （CC vs -l-r allele： odds ratio （OR）, 25; CC vs CT allele： OR, 5.4）, inflammation activity （G 〈 1 vs G 〉 1： OR, 3.9）, fibrosis （F 〈 1 vs F 〉 1： OR, 5.9）, platelet count （〉 200 × 109/L vs 〈 200 ×109/L： OR, 4.7; OR in patients with genotype CT： 12.8）, fatty liver （absence vs presence of steatosis： OR, 4.8）, insulin resistance index （〈 2.5 vs 〉 2.5： OR, 3.9）, and baseline HCV viral load （〈 106 IU/mL vs 〉 106 IU/mL： OR, 3.0）. There was no association with age, sex, aminotransferases activity, body mass index, waist/hip ratio, or percentage body fat. There was borderline significance （P = 0.064） of increased fibrosis in patients with the I-I allele, and no differences in the insulin resistance index between groups of patients with CC, CT and -IF alleles （P = 0.12）. Spearman＇s rank correlation coefficient between insulin resistance and stage of fibrosis and body mass index was r = 0.618 and r = 0.605, respectively （P 〈 0.001）. Significant dif- ferences were found in the insulin resistance index （P = 0.01） between patients wit

关键词： IL28B polymorphism Hepatitis C Fibrosis Progression peg-interferon alpha Sustained viral re-sponse

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