FGF23基因多态性与川崎病及其冠状动脉损伤的相关性

Association of FGF23 gene polymorphism with Kawasaki disease and coronary artery lesions

摘要:

目的 探讨成纤维细胞生长因子23(FGF23)基因内含子1 中c.212-37insC(rs3832879)多态性与川崎病(KD)及冠状动脉损伤(CAL)的相关性。方法 40 例KD 患儿纳入该研究,其中16 例并发CAL;26 例年龄匹配的健康儿童作为对照。应用聚合酶链反应、基因测序技术对研究对象FGF23 c.212-37insC(rs3832879)多态性进行研究。结果 40 例KD 患儿中,14 例(35%)患儿具有c.212-37insC(rs3832879)多态性,26 例对照组儿童中6 例(23%)具有此位点多态性,两组间比较该位点基因型分布差异无统计学意义。16 例伴CAL 的患儿中9 例(56%)具有c.212-37insC(rs3832879)多态性,24 例未并发CAL 患儿中5 例(21%)具有此位点多态性,伴CAL 的患儿与不伴CAL 患儿两亚组间比较该位点基因型分布差异有统计学意义(P=0.02,OR=4.89,95%CI:1.21~19.71)。结论 基因FGF23 c.212-37insC(rs3832879)多态性可能与儿童KD 的发生无相关性,但与KD 患儿CAL 的发生相关。

Abstract:

Objective To study the distribution of polymorphism of c.212-37insC (rs3832879) in intron 1 of fibroblast growth factor 23 (FGF23) gene and its association with Kawasaki disease (KD) and coronary artery lesions (CAL). Methods Forty children with KD were enrolled in this study, among whom 16 children had concurrent CAL. Twenty-six age-matched healthy children were enrolled as controls. PCR and gene sequencing were applied to explore the distribution of polymorphism of c.212-37insC (rs3832879) in FGF23 gene in KD patients and controls. Results Among 40 children with KD, 14 (35%) carried the polymorphism of c.212-37insC (rs3832879) in FGF23 gene;among 26 controls, 6 (23%) carried such polymorphism. There was no significant difference in genotype distribution at this locus between the two groups (P=0.30). Among 16 children with CAL, 9 (56%) carried the polymorphism at this locus;among 24 children without CAL, 5 (21%) carried such polymorphism. As for the comparison of two subgroups with and without CAL, the difference in genotype distribution at this locus had statistical significance (P=0.02, OR=4.89, 95%CI:1.21-19.71). Conclusions The polymorphism of c.212-37insC (rs3832879) in FGF23 gene may not be associated with the pathogenesis of childhood KD, but it may be associated with the development of CAL in children with KD.