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Title 

Genome-wide association of serum bilirubin levels in Korean population

 

한국인에서 혈액 내 빌리루빈 연관 유전형의 발굴

Authors 

Tae-Wook KangHee-Jin KimH JuJeong Hwan KimY J JeonHan Chel LeeK K KimJ W KimS LeeJ Y KimSeon-Young KimYong Sung Kim

Publisher 

Oxford University Press (OUP)

Issue Date 

2010

Citation 

Human Molecular Genetics, vol. 19, no. 18, pp. 3672-3678

Abstract 

A large-scale, genome-wide association study was performed to identify genetic variations influencing serum bilirubin levels using 8841 Korean individuals. Significant associations were observed at UGT1A1 (rs11891311, P = 4.78 × 10-148) and SLCO1B3 (rs2417940, P = 1.03 × 10-17), which are two previously identified loci. The two single-nucleotide polymorphisms (SNPs) were replicated (rs11891311, P = 3.18 × 10-15)or marginally significant (rs2417940, P = 8.56 × 10-4) in an independent cohort of 1096 individuals. In a conditional analysis adjusted for the top UGT1A1 variant (rs11891311), another variant in UGT1A1 (rs4148323, P = 1.22 × 10-121) remained significant; this suggests that in UGT1A1 at least two independent genetic variations influence the bilirubin levels in the Korean population. The protein coding variant rs4148323, which is monomorphic in European-derived populations, may be specifically associated with serum bilirubin levels in Asians (P = 2.56 × 10-70). The SLCO1B3 variant (rs2417940, P = 1.67 × 10-18) remained significant in a conditional analysis for the top UGT1A1 variant. Interestingly, there were significant differences in the associated variations of SLCO1B3 between Koreans and European-derived populations. While the variant rs2417940 at intron 7 of SLCO1B3 was more significantly associated in Koreans, variants rs17680137 (P = 0.584) and rs2117032 (P = 2.76 × 10-5), two of the top-ranked SNPs in European-derived populations, did not reach the genome-wide significance level. Also, variants in SLCO1B1 did not reach genome-wide significance in Koreans. Our result supports the idea that there are considerable ethnic differences in genetic association of bilirubin levels between Koreans and European-derived populations.

ISSN 

0964-6906

Link 

http://dx.doi.org/10.1093/hmg/ddq281

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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