title: Association of HLA alleles with hepatitis C infection in Maharashtra, western India.
abstract: OBJECTIVE
  Host genetic diversity is believed to contribute to the spectrum of clinical outcomes in hepatitis C virus (HCV) infection. The present study aimed at finding out the frequencies of HLA class I and class II alleles of HCV infected individuals from western India.
  
  
  METHODS
  Forty three clinically characterized anti-HCV positive patients from Maharashtra were studied for HLA A, B, C, DRB1 and DQB1 alleles by PCR- sequence specific primer (SSP) typing method and compared with 67 and 113 ethnically matched, anti-HCV negative healthy controls from western India.
  
  
  RESULTS
  Our analysis revealed an association of HLA alleles HLA A*03 (OR= 16.69, EF, 0.44, P=7.9E-12), A*32 (OR= 1474, EF 0.21, P=1.8E-9), HLA B*15 (OR=14.11, EF 0.39, P=2.18E-10), B*55 (OR= 12.09, EF 0.07, P=0.005), Cw*16 (OR= 7.45, EF 0.12, P=0.001), Cw*18 (OR= 402, EF 0.05, P=0.003), DRB1*03 (OR= 4.01, EF 0.08, P=0.01) and DQB1*03 (OR= 3.02, EF 0.22, P=0.001), with HCV infection. HLA II locus haplotype DRB1*11-DQB1*03 (HF=17.64, OR=5.16, P=0.0001) was significantly increased among HCV infected individuals.
  
  
  CONCLUSIONS
  Our data suggest that among the western Indian population, certain HLA alleles or associated haplotype influence HCV infection as a host genetic factor.
authors.affiliation: National Institute of Virology (ICMR), Pune, India.
authors.forename: Anuradha S
authors.initials: AS
authors.lastname: Tripathy
authors.forename: U
authors.initials: U
authors.lastname: Shankarkumar
authors.forename: Mandeep S
authors.initials: MS
authors.lastname: Chadha
authors.forename: Kanjashkya
authors.initials: K
authors.lastname: Ghosh
authors.forename: Vidya A
authors.initials: VA
authors.lastname: Arankalle
mesh_terms: D000483:Alleles; D016022:Case-Control Studies; D005787:Gene Frequency; D005805:Genes, MHC Class I; D005802:Genes, MHC Class II; D006680:HLA Antigens / Q000235:genetics*; D006239:Haplotypes; D006526:Hepatitis C / Q000235:genetics* / Q000276:immunology*; D006801:Humans; D007194:India
chemical_list: D006680:HLA Antigens