Recognan reduced cognitive dysfunction and disturbances of visual/spatial coordinationas well as had a positive effect on the emotional sphere decreasing the level of depression.
Aim: to comparatively estimate the nature and direction of alcohol-induced changes of vascular endothelial growth factor in the experiment and in the clinic. Materials and methods. The experimental part of the research was performed on 50 outbred mature rats (15 females and 15 males exposed to alcohol intoxication for 30 days, and 10 females and 10 males formed a control group). The average age of males was 38 (37.25–39) weeks, females - 40.5 (40-42.5) weeks. The body weight of females was 340 (329.5–345.5) g, males – 469 (464.5–474.25) g. After fixation, the control group animals were injected with intragastrically sterile 0.9% aqueous sodium chloride solution, the rest of the animals – 40% ethanol daily at the rate of 10 ml / kg, so that the animals reached a mild degree of intoxication. Clinical part of the research included 60 young patients: 30 males and 30 females, mean age was 35,97 (34,00-40,00) in females and 37,5 (34,00-41,00) in males, who were admitted to the narcological hospital for treatment of intoxication with diagnosed alcohol use disorder. The serum concentration of VEGF-A was evaluated in the blood serum of the studied patients and animals. Results. Alcohol intoxication caused an increase of serum concentration of VEGF-A in both animals and patients in comparison with control groups. The changes were unidirectional with no significant gender differences. Conclusion. The analysis of the experimental-clinical comparison of alcohol-induced changes in the serum content of VEGF-A indicates the unidirectional nature of the biological (angiogenic) effect in the form of VEGF-A expression under the action of ethanol. In the clinical interpretation of the physiological or pathological expression of angiogenesis, accompanied by an increase in the serum concentration of VEGF-A, it is necessary to take into account the specifics of the pathological process.
Funding Acknowledgements Type of funding sources: None. Background. In recent years much attention has been paid to cardiac remodelling processes. Many studies provide convincing evidence for the role of aldosterone and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) in the processes of structural changes in the heart and vessels, which is of particular importance in cardiovascular remodeling in patients with hypertension, acute myocardial infarction, postinfarction cardiosclerosis and chronic heart failure. Aim of the study. To investigate the association of myocardial fibrosis markers (TIMP-1 and aldosterone) with cardiac structural and functional parameters. Methods and materials. We examined 40 patients with an average age of 56.4 ± 4.8 years who had had myocardial infarction more than 1 year before (mean 2.2 ± 0.8 years before). Plasma aldosterone concentration was determined using enzyme immunoassay using a DRG (Germany) EIA-4128 reagent kit. The reference values are 40-310 pg/ml. Tissue inhibitor of matrix metalloproteinase-1 concentrations were measured using DSL kits (USA). The reference values were 92-116 ng/ml. All patients underwent echocardiography to assess the structural and functional parameters of the heart. Correlation analysis with Pearson or Spearman correlation coefficient calculation was used to determine the relationships between quantitative parameters. Differences were considered statistically significant if the probability of their absolutely random nature did not exceed 5% (p < 0.05). Results. During the study, TIMP-1 concentration had a direct statistically significant medium correlation with LV end-diastolic size (r = 0.39, p = 0.012). The analysis also revealed significant correlations of TIMP-1 concentration with LV end-diastolic size (r = 0.33, p = 0.037), with LV end-systolic volume (r = 0.41, p = 0.009), with LV myocardial mass (r = 0.48, p = 0.008), with LV ejection fraction (r=-0.36, p = 0.024). No statistically significant correlations were found with other structural and functional left ventricular indices during the study. Statistical correlation analysis of the relationship between plasma concentration of aldosterone and structural-functional parameters of the left ventricle (according to the results of echocardiography), statistically significant correlations with ejection fraction (r = 0.39, p = 0.035), LV myocardial mass (r = 0.60, p = 0.001), LV myocardial mass index (r = 0.51, p = 0.004), LV interventricular septal thickness (r = 0.45, p = 0.007) were found. No statistically significant correlations with plasma aldosterone concentration were found with the other left ventricular structural and functional indices during the study. Conclusions. The concentrations of aldosterone and tissue inhibitor of matrix metalloproteinase-1 have links with many structural and functional parameters of the heart, which confirms their importance in the structural rearrangement (remodelling) of the cardiovascular system in patients after myocardial infarction.
The aim of the study is to examine the relationship between the serum concentration of vascular endothelial growth factor and myocardial electrical inhomogeneity in alcohol-dependent young patients. Materials and Methods. The study enrolled 60 patients: 30 men (37.23±4.38 years old) and 30 women (35.97±4.60 years old). During hospitalization all patients were diagnosed with acute alcohol intoxication and alcohol dependence syndrome of the second stage. The control group consisted of healthy individuals: 15 men (34.20±6.33 years old) and 15 women (32.86±6.88 years old). Q-Td interval dispersion was assessed using a high-resolution ECG device “Poly-Spectrum 8/EX” (Russia) in 12 standard leads. The ethanol concentration in the blood was determined with Agilent 6850 (USA). Serum concentration of vascular endothelial growth factor (VEGF) was assessed in blood serum using a set of Vector-Best reagents (Russia) on an immunoassay analyzer Hospitex diagnostics Plate Screen (Italy). Results. During acute alcohol intoxication, gender differences were characterized by a higher frequency of Q-Td occurrence (>50 ms) in men, if compared with women. The changes in the frequency of Q-Td pathological dispersion in the withdrawal period were unidirectional and they were characterized by an increase in both men and women, with some predominance among men. The indicator values of myocardial electrical inhomogeneity in both acute and withdrawal periods were higher in men. Significant differences in the electrophysiological parameters of the heart and serum VEGF concentration were revealed in examined patients and in the control group. These parameters increased in alcohol-dependent individuals. The withdrawal period was accompanied by negative dynamics of Q-Td interval dispersion increase in men and women. At the same time, the severity of the changes was significantly higher in women than in men. Conclusion. The maximum alcohol-induced increase in VEGF concentration was observed during the period of acute intoxication. An increase in serum VEGF concentration was associated with myocardial electrical inhomogeneity. Keywords: VEGF, QT-d interval dispersion, QT interval, QTc interval, alcohol dependence. Цель – изучить связь сывороточной концентрации сосудисто-эндотелиального фактора роста с электрической негомогенностью миокарда у алкогользависимых пациентов молодого возраста. Материалы и методы. Обследовано 60 пациентов: 30 мужчин (средний возраст – 37,23±4,38 года) и 30 женщин (35,97±4,60 года), у которых на момент поступления в стационар была диагностирована острая интоксикация алкоголем и синдром алкогольной зависимости второй стадии. Контрольную группу составили здоровые лица: 15 мужчин (34,20±6,33 года) и 15 женщин (32,86±6,88 года). Оценка дисперсии интервала Q-Td проводилась на аппарате ЭКГ высокого разрешения «Поли-Спектр 8/ЕХ» (Россия) в 12 стандартных отведениях. Концентрация этанола в крови определялась хромографом Agilent 6850 (США). Сывороточная концентрация фактора сосудисто-эндотелиального роста (VEGF) оценивалась в сыворотке крови набором реактивов «Вектор-Бест» (Россия) на иммуноферментном анализаторе Hospitex diagnostics Plate Screen (Италия). Результаты. В период острой алкогольной интоксикации гендерные различия характеризовались большей частотой встречаемости показателя Q-Td>50 мс у мужчин по сравнению с женщинами. Динамика изменений частоты патологической дисперсии Q-Td в абстинентный период была однонаправленной и характеризовалась ее увеличением у мужчин и женщин с некоторым преобладанием среди мужчин. Значения показателей электрической негомогенности миокарда как в острый, так и в абстинентный периоды были выше у мужчин. Выявлены достоверные различия по электрофизиологическим параметрам сердца и сывороточной концентрации VEGF между обследуемыми пациентами и контрольной группой в сторону возрастания их у алкогользависимых лиц. Абстинентный период сопровождался негативной динамикой в виде увеличения дисперсии интервала Q-Td у мужчин и женщин. При этом выраженность изменений была достоверно выше у женщин по сравнению с мужчинами. Выводы. Максимальное алкогольиндуцированное повышение концентрации VEGF наблюдается в период острой интоксикации. Повышение сывороточной концентрации VEGF сопряжено с электрической негомогенностью миокарда. Ключевые слова: VEGF, дисперсия интервала QT-d, интервал QT, интервал QTс, алкогольная зависимость.
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