Abstract
ABSTRACTBackground: Kawasaki disease (KD) is an acute systemic vasculitis that predominantly affects children, and it can result in coronary artery lesions. Cyclooxygenase-2 (COX-2) is involved in the conversion of arachidonic acid to prostaglandin H2, an important precursor of several prostaglandins. The aim of this study was to examine the association between COX-2 gene polymorphisms and susceptibility to KD.Methods: A total of 276 subjects (136 KD and 140 controls) were recruited. The analysis of two single nucleotide polymorphisms rs689466 (−1195G/A) and rs20417 (−765G/C) was respectively detected with polymerase chain reaction sequence-based typing methods.Results: Polymorphisms of rs689466 were significantly different between the normal controls and KD patients (χ2 = 6.070 and 5.435, both p < 0.05). The frequencies of AA genotype and A allele of rs689466 in Kawasaki disease group were higher than that of control group (χ2 = 4.832, p = 0.028, OR = 1.832, 95%CI = 1.064–3.124; χ2 = 5.435, p = 0.028, OR = 1.491, 95%CI = 1.065–2.088).Conclusion: This study provides the first evidence supporting an association between COX-2 gene polymorphisms and susceptibility of KD. The AA genotype and A allele of rs689466 confer predisposing factors to KD.
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