Objective. To determine the impact of the I/D polymorphism of the angiotensin-converting enzyme (ACE) gene on the development of essential hypertension, taking into account gender differences.Material and Methods. Clinical data were assessed and a molecular genetic study was performed in 602 people including 401 patients with essential hypertension and 201 individuals of the control group, representing the Belarusian ethnic group. Genotyping was performed using the method of polymerase chain reaction and restriction fragment length polymorphism.Results. The distribution of genotypes of the I/D polymorphism of the ACE gene did not differ between patients with hypertension and normotensive individuals: II, ID, and DD genotypes were detected in 100 (24.9%), 192 (47.9%), and 109 (27.2%) patients and in 52 (25.9%), 108 (53.7%), and 41 (20.4%) people of the comparison group, respectively. Differences were found between the distribution of DD genotype in men with hypertension and in the control group, where the frequencies were 28.4% and 17.3% (p  =  0.04), respectively, in contrast to no differences in women: 25.8% and 23.3% (p  =  0.64), respectively. Carrying the DD genotype in men compared with the ID and DD genotypes (recessive model) of the I/D polymorphism of the ACE gene increased the probability of developing essential hypertension by 1.9 times (OR   =   1.89; 95% CI  =  1.04-3.44). The analysis of the prevalence of risk factors depending on the I/D polymorphism of the ACE gene showed that male patients with the DD genotype more often had burdened heredity in regard to the development of premature cardiovascular diseases (23 patients (37.7%)) compared with the individuals with II and ID genotypes: 13 (21.7%) and 14 (14.9%) patients, respectively (χ2  =  1.16; p  =   0.005), and mainly through the paternal line.Conclusions. Development of essential hypertension is associated with the carriership of the mutant DD genotype of I/D polymorphism of the ACE gene in men.

No abstract

Исследована цитотоксическая активность перфторалкилзамещенных имидазоиндазолов и имидазобензизоксазолов в отношении клеточных линий HepG2 (карцинома печени человека) и MCF-7 (карцинома молочной железы человека). Имидазоиндазолы проявили существенную цитотоксичность как в отношении клеточной линии HepG2, так и клеточной линии MCF-7. Наиболее выраженное цитотоксическое действие проявил 2,6-бис-(4-фторфенил)-4,4-диметил-8-трифторметил-3,4,5,6-тетрагидроимидазо[4,5-e]индазол. Региоизомерные имидазобензизоксазолы активно подавляли рост клеток HepG2. Механизм цитотоксического действия исследуемых соединений может быть связан с индукцией апоптоза вследствие нарушений клеточного цикла, а именно остановки опухолевых клеток линии HepG2 в фазе G2, а клеток линии MCF-7 — в фазе G1.

Objective: To determine association relative telomere length (RTL) and telomerase activity with lifestyle risk factors in hypertensive patients (pts) and normotensive individuals. Design and method: 80 people (34 hypertensive patients and 46 normotensive individuals) were examined. Mean age of hypertensive pts was 55.5 ± 8.7 and of normotensives was 49.7 ± 9.9 years. Smoking status, alcohol abuse, level of physical activity, body mass index, waist circumference, presence of obesity, dietary habits, blood pressure (BP), glucose and cholesterol levels, depressive episodes and psychological stress were evaluated. Arterial stiffness performed by volume sphygmography with assessing cardio-ankle-vascular index (CAVI) and ankle-brachial index. The RTL of peripheral blood leukocytes performed by previously validated real-time PCR. Telomerase activity was determined by enzyme immunoassay. Results: The association was found between RTL and CAVI (r = −0.414; p = 0.021) in the group of hypertensive pts. However, there were no association with age, levels of glucose and cholesterol, BP, obesity, diet and psychological risk factors. Sedentary work was related with shortening RTL in hypertensive patients (p = 0.043) and in normotensives (p = 0.003). Telomerase activity was related with fruit consumption (r = 0.520; p = 0.004) in hypertensive patients. Among normotensives telomerase activity was associated with consumption of fish (r = 0.344; p = 0.024) and vegetables (r = 0.302; p = 0.004). In hypertensive patients and in normotensives also was found trend toward relation between telomerase activity with dietary salt (r = −0.312; p = 0.08 and r = −0.270; p = 0.07, accordingly). Conclusions: The data suggests that lifestyle risk factors such as sedentary work and rare fruit consumption can influence on RTL and telomerase activity in hypertensive pts as well as sedentary work, low intake of fish and vegetables in normotensive people.