A single nucleotide polymorphism in the stromal cell-derived factor 1 gene is associated with coronary heart disease in Chinese patients.

Coronary heart disease (CHD) is highly prevalent globally and a major cause of mortality. Genetic predisposition is a non-modifiable risk factor associated with CHD. Eighty-four Chinese patients with CHD and 253 healthy Chinese controls without CHD were recruited. Major clinical data were collected, and a single nucleotide polymorphism (SNP) in the stromal cell-derived factor 1 (SDF-1) gene at position 801 (G to A, rs1801157) in the 3'-untranslated region was identified. The correlation between rs1801157 genotypes and CHD was evaluated by a multivariate logistic regression analysis. The allele frequency in the CHD and control groups was in Hardy-Weinberg equilibrium (HWE) (p>0.05). The frequency of the GG genotype in the CHD group (59.5%) was significantly higher than that in the control group (49.8%) (p=0.036). A number of variables, including male sex, age, presence of hypertension, and the levels of low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), triglycerides (TG), uric acid, and total bilirubin, were associated with CHD in a primary univariate analysis. In a multivariable logistic regression analysis, the GG genotype (GG:AA, odds ratio (OR)=2.31, 95% confidence interval (CI)=1.21-5.23), male sex, advanced age (≥60 years), presence of hypertension, LDL-C level≥3.33 mg/dL, HDL-C level<1.03 mg/dL, and TG level≥1.7 mg/dL were independent risk factors for CHD.