MPO Gene Polymorphism in Behcet's Disease / 대한류마티스학회지

ABSTRACT

OBJECTIVE: Behcet's disease (BD) is a systemic vasculitis in which hyperfunction of neutrophils is one of the major pathophysiologic features. Myeloperoxidase (MPO) is an important neutrophilic lysosomal enzyme and has been implicated in tissue damage of BD. As the A allele of -463G/A polymorphism of the MPO gene is associated with diminished activity of MPO, we analyzed the association of -463G/A polymorphism of the MPO gene with BD. METHODS: We analyzed -463G/A polymorphism of the MPO gene in BD patients (n=101) and controls (n=138). Genotype of the MPO gene at position -463 was determined by PCR-RFLP assay using genomic DNA. RESULTS: The allele frequency of -463G/A polymorphism of the MPO gene did not deviate from the Hardy-Weinberg expectation in both BD patients and controls. There were no statistically significant differences in genotype distribution and allele frequency between patients and controls at position -463 (p=0.761 and p=0.549 respectively). Analysis of genotype distribution and allele frequency of the -463G/A according to sex did not show any difference between patients and controls. There were no statistically significant differences in clinical manifestations of BD among different genotypes. CONCLUSION: The present data indicate that the -463G/A polymorphism of the MPO gene was not associated with the susceptibility to and clinical manifestations of BD in Korea.