I/D POLYMORPHISM OF ANGIOTENSINE CONVERTING ENZYME IN CHD PATIENTS OF DIFFERENT AGE AND GENDER

Aim. To analyze spread of alleles and genotypes of ACE gene in CHD patients of different gender and age and to study their realtion with MI risk.
Material and methods. Totally 326 individuals of both age, Tomsk city inhabitants, aged 34-79 y. o., included into the study. Of those 173 CHD patients having MI anamnesis and 153 healthy individuals. For the entire group the I/D polymorphism of ACE gene with PCR method using primers by AmpliKit Company (Saint-Petersburg). For the analysis of frequency spread of alleles and genotypes the χ2 criteria used, precise Fischer test and relative risk estimation.
Results. By the results of statistic analysis there were no difference between control and patient groups by the prevalence of ACE genes and alleles. While studying women separately there were no siginificant differences between patients and controls in genotypes and alleles. In men with MI in anamesis there was increase of DD genes prevalence comparing to healthy individuals (p=0,038). The analysis of MI prevalence and I/D polymorphism in men and women was performed with relation to age. It is shown that in men younger than 50 y.o. homozygotes there are moreprevalent II and DD genotypes, than in men older than 50 y.o., whom ID genotype is more prevalent (p=0,031). In women group the difference between those younger and older than 55 y.o. the spread of genotypes was similar, but there were more prevalent MIs in older group (p=0,020).
Conclusion. The important points of I/D polymorphism of ACE genes influence on MI risk was shown. Among women, sick and healthy, and of various age, there were no significant differences in genitypes prevalence. However there are statistically significant differences in the genotype spread was found in healthy men and men after MI, and in men with the age of 34-50 and 51-79 y.o.

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