Publications by authors named "Zaĭtseva A"

Article Synopsis
  • * The review discusses four key mechanisms of angiogenesis: sprouting, loop formation, coalescent, and intussusception.
  • * The authors identify numerous unresolved questions and contradictions in the field and suggest new models to better explain angiogenesis processes.*
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Glaucoma is a severe, rapidly progressing disease that in the absence of proper treatment leads to blindness in 20% of patients. According to the World Glaucoma Association, this disease is the most socially significant in modern ophthalmology and requires searching for new and effective methods of treatment. This article presents the results of research and reviews on this issue, considers both conservative therapy and surgical methods of treatment, analyzes in detail modern methods of micro-invasive eye surgery actively used in clinical practice.

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The system of the four different human blood groups is based on the oligosaccharide antigens A or B, which are located on the surface of blood cells and other cells including endothelial cells, attached to the membrane proteins or lipids. After transfusion, the presence of these antigens on the apical surface of endothelial cells could induce an immunological reaction against the host. The final oligosaccharide sequence of AgA consists of Gal-GlcNAc-Gal (GalNAc)-Fuc.

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Objective: To assess the metabolic processes in bone tissue and state of thyroid gland depending on iron metabolism parameters in children of pre-pubertal, pubertal and post-pubertal age, living on radiologically contaminated territories after the ChNPP accident.

Materials And Methods: Children (n = 119) aged 6 to 18 years were examined and the 4 study groups were formed, featuring the childhood, pre-pubertal, pubertal and post-pubertal life periods. Clinical symptoms, iron metabolism parameters (serum iron (SI) and ferritin (SF) content, transferrin saturation coefficient), parameters of bone tissue metabolism (serum creatinine and alkaline phosphatase (APh)), and amino acid content in urine were taken into account.

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Objective: to establish the relationship between quantitative and qualitative parameters of peripheral blood cells(lymphocytes, neutrophilic granulocytes, monocytes, platelets) depending on the type of somatic diseases andannual internal radiation doses from 137Cs in children - residents of radiologically contaminated territories in thelate period after the Chornobyl Nuclear Power Plant (ChNPP) accident.

Materials And Methods: There were 175 children included in the study comprising residents of radiologically con-taminated territories (n = 79) aged from 4 to 18 years. Annual internal radiation doses in children from 137Cs rangedfrom 0.

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Objective: To determine the influence of iron metabolism on the prognosis of acute lymphoblastic (ALL) and (AML)myeloblastic leukemia at the different phases of chemotherapy in children after Chоrnobyl accident.

Materials And Methods: 333 children (295 - ALL, 38 - AML) were examined at the stages of chemotherapy. Thecomparison group included 93 children without leukemia.

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Aim: to verify the effect of vegetative nervous system on the silent myocardial ischemia.

Materials And Methods: We included in this study 56 patients with functional class II-III effort angina (22 men and 34 women, age 45-49 years) with silent myocardial ischemia (SMI). Examination included 24hour blood pressure and ECG monitoring.

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The optical (UV/Vis absorbance, fluorescence in the solid state and in solution) and semiconducting properties of a number of di- and trigermanes as well as related silicon- and tin-containing germanes, 1-6 ((p-Tol) GeGeMe (1), Ph SnGe(SiMe ) (2), (C F ) GeGePh (3), (p-Tol) GeSiMe SiMe (4), (p-Tol) GeGeMe Ge(p-Tol) (5), (p-Tol) GeSiMe SiMe Ge(p-Tol) (6)) were investigated. Molecular structures of 5 and 6 were studied by X-ray diffraction analysis. All compounds displayed luminescence properties.

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We investigated the use of one- and two-mediator systems in amperometric BOD biosensors (BOD, biochemical oxygen demand) based on the yeast Debaryomyces hansenii. Screening of nine mediators potentially capable of electron transfer - ferrocene, 1,1'-dimethylferrocene, ferrocenecarboxaldehyde, ferroceneacetonitrile, neutral red, 2,6-dichlorophenolindophenol, thionine, methylene blue and potassium ferricyanide - showed only ferrocene and neutral red to be efficient electron carriers for the eukaryotes studied. Two-mediator systems based on combinations of the investigated compounds were used to increase the efficiency of electron transfer.

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The value of chromatin diminution (CD) in different species of freshwater cyclopoid copepods can differ significantly. The biological and evolutionary roles of these differences remain unclear. To expand the knowledge on CD distribution and magnitude in this group of copepods, a quick method for its evaluation was required.

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The solubility of lignin in a mixture of γ-valerolactone (GVL) and water at different weight ratios was measured using the Hildebrand solubility parameters. Based on the molecular structure of lignin, its solubility parameter (δ-value) was calculated as 25.5 MPa .

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We have determined the optimal conditions for the extraction of 2-nitroaniline and 2-nitro-4-methylaniline in the biological material with acetone. Moreover, this study has demonstrated the possibility of purification of the extracts thus obtained and containing co-extracted components of the biological material by low-pressure chromatography on Silasorb C-18 columns with the particle size of 30 mcm. The modified methods of thin-layer chromatography and high performance liquid chromatography are proposed for the isolation and identification of 2-nitroaniline and 2-nitro-4-methylaniline from the extracts of cadaveric liver tissue.

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Markers of electric myocardial instability were studied in 82 patients during painless episodes of coronary heart disease (CHD). Clinical examination was supplemented by 12-lead ECG, 24-hour ECG monitoring, functional tests, echocardiography, signal-averaged ECG, recording of LVP, analysis of cardiac rhythm variability, and assessment of ventricular repolarization time. It is concluded that a combination of 24-hr ECG monitoring and functional tests (veloergometer) is indispensable for diagnostics of CHD and the evaluation of the patient"s condition.

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The effect of L-lysine-alpha-oxidase from Trichoderma harzianum Rifai on the functional activity of T-lymphocytes was investigated. It was shown that in a dose of 35 units/kg administered parentally the enzyme had no suppressive effect on the T-lymphocyte functional activity. An inhibitory effect of L-lysine-a-oxidase on some indices of the macrophages functional activity was observed.

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Aim: To study markers of myocardial electrical instability in patients with coronary heart disease (CHD) during silent myocardial ischemic episodes.

Subjects And Methods: Eighty-two patients with stable CHD (mean age 62.6 +/- 5.

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Treatment of intracerebral metastases is one of the key problems in neurooncology. Modern methods of combined treatment do not significantly affect terms of survival. Quality of life during the whole period of treatment depends on selected tactics.

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The effect of L-lysine-alpha-oxidase from a representative of the Trichoderma genus on the humoral immune response to protein antigens was studied. It was shown that repeated fife-fold intravenous administrations of L-lysine-alpha-oxidase in a dose of 35 U/kg had no depressive action on the humoral immunity. The enzyme had no suppressive effect on the delayed type hypersensitivity to xenogenous erythrocytes.

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Fibrosing alveolitides (FA) are common diseases, as yet insufficiently known to practitioners. In most cases, objective and subjective difficulties arise in diagnosing FA in the outpatient setting. The course of FA has been analyzed in 48 patients from their first visit to a polyclinic to admission to a specialized pulmonology unit.

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The effectiveness and safety of treatment with vobenzyme supplemented to the standard antibiotic therapy have been compared in 60 patients. Addition of vobenzyme to the standard antibiotic therapy significantly reduces the number and degree of respiratory symptoms has a pronounced effect on the activity of inflammation, leads to a more complete reversal of pulmonary parenchymatous infiltration on a roentgenogram, contributes to the achievement of the maximum efficiency of treatment, and substantially diminishes residual respiratory symptoms of pneumonia economically expediently and safety at a late follow-up.

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Aim: To study the effects of enalapril and telmisartan on hemodynamic parameters and diastolic function (DF) of the left ventricle (LV) in patients with type 2 diabetes mellitus (DM) concurrent with arterial hypertension (AH).

Subjects And Methods: The study included 64 patients (mean age 54.3 +/- 5.

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Aim: To investigate the validity of a short-term course of azitromycin in acute sinusitis (AS). Comparison of clinical and bacteriological effects, tolerance of azitromycin and co-amoxiclav.

Materials And Methods: 50 AS patients were given a single 500 mg daily dose of axitromycin for 3 days and 50 such patients received co-amoxiclav 625 mg 3 times a day for 10 days.

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Pregnant rat experiments have revealed a pronounced and prolonged naloxone-irreversible depriming effect of clofelin, 0.05 and 0.5 mg/kg, on the frequency and amplitude of myometrial biopotentials, which was eliminated with phenoxybenzamine.

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