Background

Coronary heart disease (CHD) is a disease that seriously harms human health. Genetic factors seriously affect the CHD susceptibility. The CYP20A1, CYP4F2 and CYP2D6 are important drug metabolism enzymes in the human body.

Objective

We aimed to explore the association between CYP20A1, CYP4F2, CYP2D6 single nucleotide polymorphisms (SNPs) and CHD risk in the Chinese Southern Han population.

Methods

Based on the ‘case–control’ experimental design (505 cases and 508 controls), we conducted an association study between 5 candidate SNPs selected from CYP20A1 (rs2043449), CYP4F2 (rs2108622, rs3093106, rs309310), CYP2D6 (rs1065852) and CHD risk. Logistic regression was used to analyze the CHD susceptibility under different genetic models. Multi-factor dimensionality reduction (MDR) was used to analyze the interaction of ‘SNP-SNP’ in CHD risk.

Results

Our results showed that under multiple genetic models, CYP2D6 rs1065852 significantly increased the CHD risk in these participants who are ≤ 60 years old (OR 1.40, CI 1.07–1.82, p = 0.013), smokers (OR 1.40, CI 1.02–1.93, p = 0.039), or have family history (OR 1.24, CI 1.02–1.51, p = 0.035). CYP4F2 SNPs rs2108622 (OR 0.63, CI 0.43–0.93, p = 0.020), rs3093106 (OR 0.52, CI 0.29–0.92, p = 0.023), and rs309310 (OR 0.55, CI 0.31–0.96, p = 0.033) were potentially associated with the course of CHD patients.

Conclusion

Our study found that CY2D6 rs1065852 has an outstanding and significant association with increased CHD risk. Our study provided data supplements for CHD genetic susceptibility loci, and also provided a new and valuable reference for CHD drug treatment.