[The relationship of angiotensin I-converting enzyme gene polymorphism with diabetic retinopathy and diabetes myocardial infarction].

Objective: To investigate the relationship of angiotensin I-converting enzyme (ACE) gene polymorphism to diabetic retinopathy and diabetes myocardial infarction.

Methods: ACE insertion/deletion(I/D) polymorphism was determined by PCR.

Results: No evidence showed that ACE gene was associated with diabetic retinopathy. By comparison of the type 2 diabetes patients with myocardial infarction versus those without-myocardial infarction, it was found that the frequencies of homozygote DD (41.2% versus 33.2%) and of allele D (64.7% versus 55.0%) increased remarkably; the difference was statistically significant (P<0.05).

Conclusion: Allele D(RR=1.50) and genotype DD(RR=1.33) seemed to be a genetic risk factor for type 2 diabetes myocardial infarction.