The ACE gene deletion polymorphism was associated with an increased risk for coronary artery disease in the Japanese population, with a higher frequency of deletion alleles in CAD patients (0.58 vs 0.42; P<0.05).
Cross-Sectional (n=278)
Is the deletion polymorphism of the ACE gene associated with increased risk for CAD and higher serum ACE concentration in the Japanese population?
The deletion polymorphism of the ACE gene is associated with higher serum ACE activity and an increased risk for coronary artery disease in the Japanese population, extending previous findings in Caucasians.
Absolute Event Rate: 0.58% vs 0.42%
p-value: p=< .05
BACKGROUND: The angiotensin I-converting enzyme (ACE) is a key component of the renin-angiotensin system thought to be important in the pathogenesis of hypertension and cardiovascular disease. Deletion polymorphism in the ACE gene may be a risk factor for myocardial infarction in the Caucasian population. However, this finding has not yet been investigated in the Japanese population. METHODS AND RESULTS: A 287-bp insertion/deletion polymorphism in intron 16 of the ACE gene was examined by polymerase chain reaction in a cross-sectional study of 100 healthy subjects and 178 patients with coronary artery disease (CAD) (70 angina pectoris, 108 myocardial infarction), whose serum ACE levels were concomitantly measured. Polymorphism of the ACE gene was characterized by three genotypes: two deletion alleles (genotype DD), two insertion alleles (genotype II), and heterozygous alleles (genotype ID). No differences could be detected among the three genotypes for total cholesterol, HDL cholesterol, and body mass index. Serum ACE levels were 11.4 +/- 2.7, 14.5 +/- 3.5, and 16.6 +/- 4.6 IU/mL for genotypes II, ID, and DD, respectively. In the study population, the genotype DD was more closely associated with CAD than the other two genotypes (ID and II). The frequency of deletion alleles was higher (0.58) in the CAD group than in healthy control subjects (0.42) (P < .05). Furthermore, multivessel disease was more strongly associated with deletion alleles than with insertion alleles (P < .05). CONCLUSIONS: A deletion polymorphism of the ACE gene is associated with serum ACE activity and increased risk for CAD in the Japanese.
Nakai et al. (1994) conducted a cross-sectional in Coronary artery disease (n=278). ACE gene deletion polymorphism vs. Healthy controls was evaluated on Frequency of deletion alleles (p=< .05). The ACE gene deletion polymorphism was associated with an increased risk for coronary artery disease in the Japanese population, with a higher frequency of deletion alleles in CAD patients (0.58 vs 0.42; P<0.05).