IL-10 gene polymorphism with ulcerative colitis susceptibility and its influence on clinical outcomes / 中国免疫学杂志

ABSTRACT

Objective:To study the correllation of genetic polymorphisms of IL-10 polymorphic loci with ulcerative colitis sus-ceptibility and its influence on clinical outcomes.Methods:A total of 80 patients with ulcerative colitis were selected as case group and the others by sex and age matched healthy subjects as control group according to the case-control study design.Peripheral venous blood samples were drawn and DNA was extracted from all subjects prior to treatment.PCR primers of -819T/C(rs1800871),-592A/C (rs1800872),-1082G/A(rs1800896) were designed for PCR amplification.The fragments produced from human genomic DNA were performed by restriction enzyme digestion of amplified PCR products,and further separated using agarose gel electrophoresis.Relative risk(OR) and 95%confidence interval(95%CI) were calculated by the Logistic regression,in order to evaluate the correlation of IL-10 gene polymorphism with susceptibility of ulcerative colitis and clinical outcomes.Results:(1)The distribution frequency of genotype AA,GG and AG of polymorphic loci rs1800896 in cases patients were significantly different from that in control group(P0.05).(4)The distribution frequency of genotype AA,AC and CC of polymorphic loci rs1800872 were not significantly different between groups(P>0.05).Conclusion:IL-10 polymorphic loci rs1800896 genotype GG would be associated with increased susceptibility to ulcerative colitis,and poor prognosis of patients.