Wang LS, Tang NP, Zhu HJ, Zhou B, Yang L, Wang B. Endothelin-converting enzyme-1b C-338A polymorphism is associated with the increased risk of coronary artery disease in Chinese population.
Clin Chim Acta 2007;
384:75-9. [PMID:
17618613 DOI:
10.1016/j.cca.2007.06.003]
[Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2007] [Revised: 06/06/2007] [Accepted: 06/06/2007] [Indexed: 10/23/2022]
Abstract
BACKGROUND
Endothelin-converting enzyme-1 (ECE-1), the key enzyme responsible for endothelin-1 generation, has been linked to coronary artery disease (CAD). Recently, a genetic polymorphism (ECE-1b C-338A) located in ECE-1 gene promoter was identified. However, it is unclear whether this polymorphism is associated with the risk of CAD.
METHODS
We conducted a study with CAD patients and controls matched by age and sex to examine the prevalence of ECE-1b C-338A polymorphism in CAD.
RESULTS
The frequencies of ECE-1b-338CC, CA, and AA genotypes in cases (40.1%, 42.2%, and 17.7%) were significantly different from those of controls (50.6%, 40.5%, and 8.9%, chi2=9.989, P=0.007). Subjects with the variant genotypes (CA+ AA) had a 58% increased risk of CAD relative to CC carriers (adjusted OR=1.58, 95% CI=1.07-2.32). Furthermore, the adjusted OR of AA genotype for CAD was 2.33 (95% CI=1.25-4.35). In stratified analyses, the A allele was significantly associated with increased risk of CAD in female (adjusted OR=2.86, 95% CI=1.40-5.84) and subjects with age >or= 64 y (adjusted OR=2.96, 95% CI=1.73-5.08). Moreover, the frequency of patients with variant genotypes increased gradually from single- to triple-vessel disease although without statistical significance (P=0.069 for trend).
CONCLUSION
Our results suggested that ECE-1b-338C to A variant might be associated with increased risk of CAD in Chinese population.
Collapse