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Pre-treatment role of inosine triphosphate pyrophosphatase polymorphism for predicting anemia in Egyptian hepatitis C virus patients

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World Journal of Gastroenterology 2013年第9期19卷 1387-1395页

作者： Walaa H Ahmed Norihiro Furusyo saad zaky Abeer Sharaf Eldin Hany Aboalam Eiichi Ogawa Masayuki Murata Jun Hayashi Department of Environmental Medicine and Infectious Diseases Kyushu University Hospital Fukuoka 812-8582 Japan Department of General Internal Medicine Kyushu University Hospital Fukuoka 812-8582 Japan Department of Tropical Medicine and Gastroenterology Assiut University Hospital Assuit 71515 Egypt National Center for Treatment of Chronic Hepatitis C Ministry of Health Assiut 71329 Egypt

AIM: To investigate and clarify, for the first time, the role of inosine triphosphate pyrophosphatase (ITPA ) polymorphism in Egyptian chronic hepatitis C virus (HCV) ***:The human genomic DNA of all patients was extracted from peripheral blood cells in order to determine the single nucleotide polymorphism (SNP) of ITPA (rs1127354). SNP genotyping was performed by real time polymerase chain reaction (PCR, ABI TaqMan allelic discrimination kit) for 102 treatment-naive Egyptian patients with chronic HCV. All patients had no evidence of cardiovascular or renal diseases. They received a combination treatment of pegylated interferon α (PEG-IFNα) as a weekly subcutaneous dose plus an oral weight-adjusted dose of ribavirin (RBV). The majority received PEG-IFNα2a (70.6%) while 29.4% received PEG-IFNα2b. The planned duration of treatment was 24-48 wk according to the viral kinetics throughout the course of treatment. Pre-treatment liver biopsy was done for each patient for evaluation of fibrosis stage and liver disease activity. The basal viral load level was detected quantitatively by real time PCR while viral load throughout the treatment course was performed qualitatively by COBAS TaqMan assay. RESULTS: Ninety-three patients (91.2%) had ITPA SNP CC genotype and 9 (8.8%) had non-CC genotype (CA and AA). The percentage of hemoglobin (Hb) decline was higher for CC patients than for non-CC patients, particularly at weeks 4 and 8 (P=0.047 and 0.034, respectively). During the first 12 wk of treatment, CC patients had significantly more Hb decline > 3 g/dL than non-CC patients: 64.5% vs 22.2% at weeks 8 and 12, respectively, (P=0.024 and 0.038). Reduction of the amount of the planned RBV dose was significantly higher for CC patients than non-CC patients during the first 12 wk (18% ± 12.1% vs 8.5% ± 10.2%, P=0.021). The percentage of CC patients with RBV dose reduction was significantly greater than that of non-CC patients (77.4% vs 44.4%, P=0.044). Multivariate anal

关键词： Anemia Dose reduction Hepatitis C Inosine triphosphate Ribavirin Rs1127354

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