Impact of IL-28B Variants on Hepatitis C Virus Clearance
Author Information
Author(s): Julia di Iulio, Angela Ciuffi, Karen Fitzmaurice, Dermot Kelleher, Margalida Rotger, Jacques Fellay, Raquel Martinez, Sara Pulit, Hansjakob Furrer, Huldrych F Günthard, Manuel Battegay, Enos Bernasconi, Patrick Schmid, Bernard Hirschel, Eleanor Barnes, Paul Klenerman, Amalio Telenti, Andri Rauch
Primary Institution: Institute of Microbiology, University Hospital Center, University of Lausanne
Hypothesis
The study aims to estimate the net effect of IL-28B genetic variation on HCV clearance.
Conclusion
The study identified IL-28B haplotypes that are highly predictive of spontaneous HCV clearance.
Supporting Evidence
- Haplotypes characterized by major alleles at IL-28B SNPs were overrepresented in individuals with spontaneous clearance.
- The odds ratios for clearance were 2.1 in the multiple-source cohort and 3.9 in the single-source cohort.
- The study controlled for viral diversity, sex, and coinfections to provide a precise estimate of genetic contribution.
Takeaway
Some people can naturally get rid of the hepatitis C virus better than others because of their genes, especially a gene called IL-28B.
Methodology
The study involved genotyping and comparing host contributions in multiple- and single-source cohorts.
Potential Biases
Potential bias due to the heterogeneity of the cohorts and the unknown viral genotypes in most individuals.
Limitations
The study's findings may not be generalizable due to the specific cohorts used.
Participant Demographics
The study included HIV/HCV-coinfected individuals and women infected with HCV genotype 1b.
Statistical Information
P-Value
6 × 10−9
Confidence Interval
1.6-3.0
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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