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Correlation between the genetic variations in interleukin 28B and chronic hepatitis C virus genotypes in the Chinese

Xiao-Rong Mao1, Li-Ting Zhang2, Hong Chen2

  • 1Department of General Surgery, The Second Hospital of Lanzhou University, Lanzhou, Gansu, P.R. China.

Molecular Medicine Reports
|May 21, 2014
PubMed

Insights

Genetic variations in interleukin 28B (IL-28B) and hepatitis C virus (HCV) genotypes show geographical differences in China. These factors correlate and may influence HCV clearance.

Area of Science:

  • Genetics
  • Virology
  • Epidemiology

Background:

  • Interleukin 28B (IL-28B) genetic variations and hepatitis C virus (HCV) genotypes are key predictors of treatment success for HCV infection.
  • Understanding their geographical distribution and correlation is crucial for managing HCV in diverse populations.

Purpose of the Study:

  • To investigate the geographical distribution of HCV genotypes and IL-28B single nucleotide polymorphisms (SNPs) in Chinese HCV patients.
  • To explore correlations between IL-28B SNPs, HCV genotypes, and demographic factors (age, gender, location).

Main Methods:

  • Genotyping of HCV and analysis of 13 types of IL-28B SNPs in 1,014 Chinese HCV patients from various regions.
  • Statistical analysis to determine gene frequencies, geographical variations, and correlations.

Main Results:

  • Significant geographical variations in HCV genotypes were observed, with genotype 1 being most prevalent overall, except in South and Northwest China.
  • Gender and age distributions also showed regional differences.
  • No geographical variations in IL-28B SNPs were found, but significant differences existed between HCV genotypes 1 and 2 concerning SNP percentages.

Conclusions:

  • HCV genotypes exhibit distinct geographical distribution patterns within China.
  • A correlation between HCV genotypes and IL-28B SNPs was identified.
  • These genetic factors may play a role in both spontaneous and treatment-induced HCV clearance.

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