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Cholesterol ester transfer protein gene is associated with high-density lipoprotein cholesterol levels in Korean population

 Jae Woong Sull ; Jong-Eun Lee ; Sun Ha Jee ; Myoungsook Lee 
 Genes & Genomics, Vol.34(2) : 231~235, 2012 
Journal Title
 Genes & Genomics 
Issue Date
High-density lipoprotein (HDL) cholesterol levels are associated with decreased risk of coronary artery disease. Several genome-wide association studies (GWAS) for HDL cholesterol levels have implicated cholesterol ester transfer protein (CETP) as possibly causal. We tested for the association between single nucleotide polymorphisms (SNPs) in CETP gene and HDL cholesterol levels in Korean population. A total of 979 subjects in Seoul City were genotyped using a genome-wide marker panel for a discovery study. Another 2,277 subjects in Bundang-Gu in Korea were used for a replication study with selected markers. In the discovery phase, the top SNP associated with mean HDL cholesterol levels was rs6499861 in the CETP gene on chromosome 16 (p=1.18×10−6 in the Seoul City sample, p=8.91×10−3 in the Bundang-Gu sample). Another SNP (rs6499863) in the CETP gene was also among the top five SNPs associated with HDL cholesterol levels (p=3.83×10−5 in the Seoul City sample, p=3.29×10−3 in the Bundang-Gu sample). SNP rs1800775 was also associated with HDL cholesterol levels (p=4.86×10−4 in meta-analysis results of 3256 samples). This study clearly demonstrates that genetic variants in CETP influence HDL cholesterol levels in Korean adults.
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