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Common Variants in the CRP Promoter are Associated with a High C-Reactive Protein Level in Kawasaki Disease

Authors
Kim, Jae-JungYun, Sin WeonYu, Jeong JinYoon, Kyung LimLee, Kyung-YilKil, Hong-RyangKim, Gi BeomHan, Myung KiSong, Min SeobLee, Hyoung DooByeon, Jung HyeSohn, SaejungHong, Young MiJang, Gi YoungLee, Jong-Keuk
Issue Date
Feb-2015
Publisher
SPRINGER
Keywords
Genome-wide association study (GWAS); Kawasaki disease (KD); C-reactive protein (CRP); Single nucleotide polymorphism (SNP)
Citation
PEDIATRIC CARDIOLOGY, v.36, no.2, pp 438 - 444
Pages
7
Journal Title
PEDIATRIC CARDIOLOGY
Volume
36
Number
2
Start Page
438
End Page
444
URI
https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/9899
DOI
10.1007/s00246-014-1032-1
ISSN
0172-0643
1432-1971
Abstract
Kawasaki disease (KD) is an acute self-limiting form of vasculitis that afflicts infants and children and manifests as fever and signs of mucocutaneous inflammation. Children with KD show various laboratory inflammatory abnormalities, such as elevations in their white blood cell (WBC) count, C-reactive protein (CRP) level, and erythrocyte sedimentation rate (ESR). We here performed a genome-wide association study (GWAS) of 178 KD patients to identify the genetic loci that influence 10 important KD laboratory markers: WBC count, neutrophil count, platelet count, CRP, ESR, hemoglobin, aspartate aminotransferase (AST), alanine aminotransferase (ALT), albumin, and total protein. A total of 165 loci passed our arbitrary stage 1 threshold for replication (p < 1 x 10(-5)). Of these, only 2 SNPs (rs12068753 and rs4786091) demonstrated a significant association with the CRP level in replication study of 473 KD patients (p < 0.05). The SNP located at the CRP locus (rs12068753) demonstrated the most significant association with CRP in KD patients (beta = 4.73 and p = 1.20 x 10(-6) according to the stage 1 GWAS; beta = 3.65 and p = 1.35 x 10(-8) according to the replication study; beta = 3.97 and p = 1.11 x 10(-13) according to combined analysis) and explained 8.1 % of the phenotypic variation observed. However, this SNP did not demonstrate any significant association with CRP in the general population (beta = 0.37 and p = 0.1732) and only explained 0.1 % of the phenotypic variation in this instance. Furthermore, rs12068753 did not affect the development of coronary artery lesions or intravenous immunoglobulin resistance in KD patients. These results indicate that common variants in the CRP promoter can play an important role in the CRP levels in KD.
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