Author(s): Abdo AA, Al-Ahdal MN, Khalid SS, Helmy A, Sanai FM, et al.
Background: Genome-wide association studies have recently revealed that several single-nucleotide polymorphisms (SNPs) in the interleukin (IL) 28B genes can predict the sustained virological response (SVR) to pegylated interferon-α2a/b plus ribavirin in hepatitis C virus (HCV)-genotype 1 patients. However, data for patients infected with HCV genotype 4 (HCV-G4) are limited.
Aim: We analyzed the association of IL28B SNPs (hematological, biochemical, virological, and pathological factors) with SVR in the HCV-G4 monoinfected cohort of patients.
Patients and methods: One hundred twenty-nine treatment-naïve HCV-G4 patients undergoing treatment were recruited from three tertiary care centers in Saudi Arabia. Five IL28B SNPs (rs12979860, rs12980275, rs8105790, rs8099917, and rs72486680) were identified by polymerase chain reaction and DNA sequencing. SVR was statistically correlated with various clinical, histopathological, virological, and genetic parameters.
Results: SVR was significantly associated with the CC and AA alleles of rs12979860 (p = 0.008) and rs12980275 (p = 0.004), respectively. Moreover, albumin levels (p = 0.002) and platelet count (p = 0.039) showed significant differences in the SVR and No SVR groups. On multivariate analysis, the CC allele of rs12979860 (OR, 2.89; 95 % CI 1.6-6.2, p = 0.006) and albumin levels (OR, 1.2; 95 % CI 1.1-1.4, p = 0.001) independently predicted SVR.
Conclusions: IL28B polymorphism (CC allele of rs12979860) predicts the sustained response to antiviral therapy in HCV-G4.
Referred From: https://www.ncbi.nlm.nih.gov/pubmed/23853698
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