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Background  Erythropoietin-producing human hepatocellular (Eph) receptors might contribute to the development of atherosclerosis. A genome-wide association study indicated that the Eph receptor A6 gene ( EPHA6 ) associated with at least 1 blood pressure (BP) phenotype. The objective of the present study was to determine whether  EPHA6  is a novel candidate gene for hypertension in a Korean population.    Methods  A total 2146 study participants with normotension and hypertension were included. Genotype data were obtained using a Korean Chip. To assess the association between single-nucleotide polymorphisms (SNPs) and BP, we performed a linear regression analysis, which showed that rs4850755 in the  EPHA6  gene was the SNP most highly associated with both systolic and diastolic BP.    Results  The presence of the TT genotype of the  EPHA6  rs4857055 C > T SNP was associated with a higher risk of hypertension after adjusting for age, sex, body mass index (BMI), smoking, and drinking [odds ratio 1.533,  P =  0.001]. In the control group, significant associations were observed between systolic BP and the rs4857055 polymorphism and between diastolic BP and the rs4857055 polymorphism. In the hypertension group, a significant association was observed between systolic BP and the rs4857055 polymorphism. In the hypertension group, subjects with the TT genotype showed significantly higher systolic BP than CC subjects. Additionally, in the hypertension group, TT carriers showed a higher tendency of serum triglyceride ( P  = 0.069) and significantly higher apolipoprotein B ( P  = 0.015) and smaller low-density lipoprotein (LDL) particle size ( P  < 0.001) than either TC or CC subjects.    Conclusions  These results could suggest that the  EPHA6  rs4857055 C > T SNP is a novel candidate gene for hypertension in the Korean population. Additionally, the TT genotype could be associated with hypertriglyceridemia and small LDL particle size in hypertension.    Electronic supplementary material  The online version of this article (10.1186/s12944-017-0620-5) contains supplementary material, which is available to authorized users.

EPHA6 rs4857055 C > T polymorphism associates with hypertension through triglyceride and LDL particle size in the Korean population