Lysyl oxidase G473A polymorphism is associated with increased risk of coronary artery diseases.

Lysyl oxidase (LOX) plays a crucial role in the maintenance of extracellular matrix stability and could participate in vascular remodeling associated with cardiovascular diseases. A novel polymorphism in the LOX gene, G473A (rs1800449), was identified. The objective of this study was to investigate the association between LOX G473A polymorphism and susceptibility to coronary artery diseases (CADs) in Chinese population. The LOX variant G473A was detected by polymerase chain reaction-restriction fragment length polymorphism in 656 CAD cases and 718 age-matched controls. Frequencies of LOX 473 AA genotype and A allele were significantly higher in patients with CAD than in controls (odds ratio = 1.93, 95% confidence interval 1.26-2.95, p = 0.002; and odds ratio = 1.38, 95% confidence interval 1.15-1.67, p = 0.001). Our data suggest that the G473A polymorphism of LOX gene is associated with increased susceptibility to CAD.