HLA class I alleles and haplotypes in Chinese patients with primary biliary cirrhosis / 中华肝脏病杂志

ABSTRACT

<p><b>OBJECTIVE</b>To analyze the HLA class I alleles and haplotypes in Chinese patients with primary biliary cirrhosis (PBC).</p><p><b>METHODS</b>Sequencing based typing-polymerase chain reaction (SBT-PCR) was used to investigate the HLA class I alleles of 146 PBC patients and 500 normal controls in northern China. The frequencies of alleles and haplotypes were calculated and compared for the two groups. The chi-square test and Fisher's exact test were used for statistical analyses.</p><p><b>RESULTS</b>There were 26, 51 and 21 alleles identified at the HLA-A, B and C loci respectively, and the frequencies of these alleles were not significantly different between the PBC and normal control groups.However, the frequencies of A *1101-B*4006 and A*0201-B*l501 haplotypes were significantly higher in the PBC group than in the normal control group (7.53% vs. 1.40%, P<0.01, OR=5.38; 6.85% vs. 2.00%, P=0.003, OR=3.425).</p><p><b>CONCLUSION</b>This study established the role of HLA class I haplotypes in determining PBC susceptibility in a Chinese population.</p>