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Meta-analysis: IL28B polymorphisms predict sustained viral response... » Isaúde
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Nome da revista:   Volume:   Número:
Alimentary Pharmacology and Therapeutics
2012-05-17 01:24:04

Meta-analysis: IL28B polymorphisms predict sustained viral response in HCV patients treated with pegylated interferon-- and ribavirin

Descrição: BackgroundInterleukin (IL) 28B single nucleotide polymorphisms can predict sustained virological response (SVR) in hepatitis C virus (HCV) patients following pegylated interferon-alpha (PEG IFN--) and ribavirin treatment.AimTo design a meta-analysis to determine IL28B genotypes\', rs12979860 CC and rs8099917 TT, correlation with SVR in PEG IFN--/ribavirin-treated HCV patients.MethodsMeta-analysis was performed in 17 studies of rs12979860 CC vs. CT/TT and 17 of rs8099917 TT vs. TG/GG. Odds ratios (OR) and confidence intervals (95% CI) were calculated by fixed- or random-effects models. Heterogeneity, sensitivity analysis and publication bias were also assessed.ResultsOf 4252 Asian, Caucasian and African HCV patients analysed for rs12979860, SVR was more frequent in CC (vs. CT/TT; OR?=?4.76, 95% CI: 3.15-7.20). Moreover, CC was associated with SVR for HCV genotype-1 or -4 infections (ORgenotype 1?=?5.52, 95% CI: 3.74-8.15; ORgenotype 4?=?8.11, 95% CI: 4.13-15.93), regardless of ethnicity. Of 4549 Caucasian and Asian HCV patients analysed for rs8099917, SVR was more frequent in TT (vs. TG/GG; OR?=?3.31, 95% CI: 2.39-4.59). Moreover, TT was associated with SVR for HCV-1 (ORgenotype 1 = 4.28, 95% CI: 2.87-6.38). Rs8099917 TT predictive value was stronger in Asians (ORAsians?=?8.09, 95% CI: 5.63-11.61; ORCaucasians?=?3.00, 95% CI: 2.03-4.45). Ethnicity stratification revealed that rs8099917 TT had slight predictive value in Asian HCV-2/3 patients (OR?=?1.99, 95% CI: 1.09-3.62).ConclusionsIL28B rs12979860 CC and rs8099917 TT are strong SVR predictors for PEG IFN--/ribavirin-treated HCV-1 patients, regardless of ethnicity. In HCV-2/3, rs12979860 CC has no SVR predictive value, but rs8099917 TT was slightly associated with SVR in Asians.

Editorial: John Wiley & Sons, Inc.
Seção: Meta-analysis
Volume: 0
Página: 91 a 103


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