Abstract
Adiponectin is associated with obesity and insulin resistance. To date, there has been no genome-wide association study (GWAS) of adiponectin levels in Asians. Here we present a GWAS of a cohort of Korean volunteers. A total of 4,001 subjects were genotyped by using a genome-wide marker panel in a two-stage design (979 subjects initially and 3,022 in a second stage). Another 2,304 subjects were used for follow-up replication studies with selected markers. In the discovery phase, the top SNP associated with mean log adiponectin was rs3865188 in CDH13 on chromosome 16 (p = 1.69 × 10-15 in the initial sample, p = 6.58 × 10-39 in the second genome-wide sample, and p = 2.12 × 10-32 in the replication sample). The meta-analysis p value for rs3865188 in all 6,305 individuals was 2.82 × 10-83. The association of rs3865188 with high-molecular-weight adiponectin (p = 7.36 × 10-58) was even stronger in the third sample. A reporter assay that evaluated the effects of a CDH13 promoter SNP in complete linkage disequilibrium with rs3865188 revealed that the major allele increased expression 2.2-fold. This study clearly shows that genetic variants in CDH13 influence adiponectin levels in Korean adults.
Original language | English (US) |
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Pages (from-to) | 545-552 |
Number of pages | 8 |
Journal | American journal of human genetics |
Volume | 87 |
Issue number | 4 |
DOIs | |
State | Published - Oct 8 2010 |
ASJC Scopus subject areas
- Genetics
- Genetics(clinical)