LAUSR

BACKGROUND The aim of the study was to analyze the polymorphism of APOE and SLCO1B1 genotype and correlation with blood lipid levels in patients with dyslipidemia in Hunan Province, China. METHODS Concentration of total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) were retrospectively analyzed from 396 patients with dyslipidemia from 2016 to 2020. The APOE and SLCO1B1 genotypes were detected by PCR-fluorescent probe. SPSS21.0 software was used to analyze the gene frequency and their correlation. RESULTS The frequency of E3/E3 genotype was the highest in the APOE gene, reaching 64.14%. The concentrations of LDL-C and TC in E4 phenotype group were the highest and were statistically different from those in E2 and E3 phenotype groups (p < 0.05). There were significant differences in E4 phenotype between the dyslipidemia group and the normolipidemia group (p < 0.05). The frequency of *1b/*1b genotype was the highest in the SLCO1B1 gene, reaching 41.41%. The concentrations of TC and LDL-C in the intermediate OA1P1B1 function group were higher than those in the normal OA1P1B1 function group and the differences were statistically significant (p < 0.05). CONCLUSIONS The genotypes of APOE and SLCO1B1 gene are correlated with concentration of TC and LDL-C, and their genotypes frequency distribution have regional differences.