ACE gene polymorphism in patients with ischemic brain disease

: The aim of the present study was to define participation of gene angiotensine converting enzyme (ACE) in the development of atherothrombotic ischemic stroke. 153 patients with cerebrovascular disease were enrolled. The first group consisted of 50 patients with hemispheric atherothrombotic ischemic stroke and their 55 siblings. The second group consisted of 23 patients with chronic cerebrovascular disease with not less than 10 year history but with no history of strokes, including silent ones, and their 25 siblings. All the patients underwent standard clinical and laboratory study, insertion-deletion polymorphism of ACE gene was determined with polymerase chain reaction. chi 2-Test found no statistically significant differences in frequencies of I/D alleles between two groups as well as between genotypes of each group: p < 0.05. During analysis of ACE gene polymorphism in relation to level of arterial hypertension, presence of type II diabetes mellitus as risk factors no statistically significant differences in frequencies of I/I, I/D and D/D genotypes in both groups were found. We studied correlation between insertion-deletion polymorphism of ACE gene and the development of stenosis significantly affecting haemodynamics (over 70%). We found that among patients with stenosis in both groups D/D genotype significantly predominated (p < 0.05).