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International Journal of Laboratory Medicine ; (12): 12-14, 2015.
Article in Chinese | WPRIM | ID: wpr-459250

ABSTRACT

Objective To analyze the association between the polymorphism of 5509-5511delCAA in exon4 of Tim-1 gene and the susceptibility to rheumatoid arthritis(RA)in a group of Han population from Yunnan province.Methods The PCR-DNA se-quencing analysis was used to detect the polymorphism of 5509-5511delCAA in exon4 of Tim-1 gene in 196 RA Han nationality pa-tients and 190 individuals of healthy physical examination(control).The ELISA method and indirect immunofluorescence assay was adopted to detect the three related aotuantibodies of RA,including the rheumatoid factors(RF)and the anti-cyclic citrullinated pep-tide(Anti-CCP)and the anti-keratin antibodies(AKA).Results There were statistically significant differences in genotype and al-lele frequency of 5509-5511delCAA between the RA group and the control group(P 0.05 ),but the positive rate of AKA between different genotypes of 5509-5511delCAA in the RA group had statistically significant differences (P <0.05).Conclusion The 5509-5511delCAA site of Tim-1 exon4 has the polymorphic variation,the 5509-5511delCAA genotype maybe related with the genetic susceptibility to RA in Han population of Yunnan province,the different genotypes does not affect the expression of RF and the anti-CCP,but affects the expression of AKA.

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