Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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208 kb

THE OPERATED EYE HYDRODYNAMICS MATHEMATICAL MODELING FOR OPTIMIZATION OF SURGERY THECNIQUE

abstract 1101506004 issue 110 pp. 70 – 85 30.06.2015 ru 849
Acceptable values of the drainage hole parameters in the shunt glaucoma surgery were calculated by means of mathematical modeling of different conditions of eye hydrodynamics. The operation method was designed with provision for pressure gradient, rate of the aqueous humor outflow, and the values of intraocular pressure in early and late postoperative period. The balance of liquid in eye was calculated in mathematical model as ordinary differential equation in accordance with flow resistance of every section. The data received by using mathematical model has shown that allowable rate of aqueous humor outflow is gained with the hole diameter of 0,025 mm. This mathematical model should assist to the better understanding of physical processes describing the eye hydrodynamics, should benefit to the operation quality and should create the base to the clinical studies
169 kb

THE MATHEMATICALLY BASED CHOISE OF VISCOELASTIC IN SHUNT GLAUCOMA SURGERY

abstract 1101506081 issue 110 pp. 1221 – 1233 30.06.2015 ru 1039
The dramatic lowering of intraocular pressure (hypotony) is developing during glaucomatous surgery due to the formation of the new aqueous humor outflow. The calculations of the flow in the fluid balance parameters have shown, that for the normal intraocular pressure maintenance in the postoperative period the fluid flow out of the anterior chamber should not exceed 0,04 microliter in minute. The intensity of the aqueous humor outflow through the shunts with different parameters does not depend on the shunt length. The shunt with the inner hole radius 0,025 mm is the most safe as it provide the less outflow. The experimental comparative study of the static viscosity of the most widely used viscoelastics in ophthalmological surgery was carried out. It was stated that used in eye surgery viscoelastics on the basis of 1%, 2% and 3% sodium hyaluronate possess the viscosity, that differs in 10 and 100 times and has significant influence on the flow intensity out of the anterior chamber when the new outflow tracts are formed. The mathematically based choice of the most optimal relationship between the viscoelastics physical parameters and the inner hole size of the shunt type glaucoma drainage devices was established. Shunt with the inner hole radius 0,05 mm and simultaneous use of 2% and 3% sodium hyaluronate solution is the most safe for the maintenance of the eye tonus during the first 5 days after glaucoma surgery. The presented correlation allows to increase the safety of the surgical treatment of the patients with the refractory glaucoma
311 kb

VISUALIZATION OF THE SPACE OF INITIAL EXCITATION AREA IN SINOATRIAL NODE OF THE CAT,S HEART

abstract 1081504045 issue 108 pp. 617 – 632 30.04.2015 ru 647
The article describes the visualization of the space of initial excitation area in sinoatrial node of the cat’s heart
868 kb

THE ROLE OF GAP JUNCTIONS IN THE DEVELOPMENT OF ASTROCYTIC HUMAN BRAIN TUMOR

abstract 1051501028 issue 105 pp. 472 – 490 30.01.2015 ru 892
Recently, much attention is paid to research the role of cell-cell interactions by gap junctions in the process of malignant transformation and mechanisms of antitumor resistance. Meanwhile, the greatest interest is astrocytic tumors. Depending on the degree of malignancy, astrocytomas are divided into: pilocytic astrocytoma (Grade I), subependymal giant cell astrocytoma (Grade I), pleomorphic xanthoastrocytoma (Grade II), diffuse astrocytoma (Grade II), anaplastic astrocytoma (Grade III), glioblastoma (Grade IV ) gliomatosis cerebri (Grade IV). Information of literature devoted to astrocytic tumors (gliomas) - the most common brain tumor in large part obtained in studies in cell cultures and different contradictions. Along with data on the reduction of glial tumors cells communicability through GJ, there is evidence of an opposite character - a functionally active GJ in gliomas and inhibition of tumor growth by reducing intercellular communicability by GJ. However, up to now there have been no studies of the effect and function of hemichannels in cancer cells, which would provide detailed information on: 1) the characteristic of presence and relative abundance of hemichannels in cancer cells; 2) evaluation of absorption / release of hemichannels mediated molecules in tumor cells than in non-tumor cells; 3) functional consequences of activation and blocking of hemichannels in tumor cells and 4) the prognostic value of the expression / activation of hemichannels in human malignancies
1149 kb

X-RAY ULTRASOUND COMPARISON AND DYNAMIC SONOGRAPHIC CONTROL OF PNEUMONIA IN CHILDREN

abstract 1041410112 issue 104 pp. 1610 – 1624 30.12.2014 ru 981
Comparative analysis of the informativity of ultrasonic and radiographic examination of the lungs at the initial diagnosis of inflammatory infiltrate and at case followup of its involution during treatment was performed in 154 children with pneumonia. Higher informativity of ultrasound compared with radiography was determined. All children underwent ultrasound monitoring of pneumonia since admission to the full restoration of normal ultrasound image. Assessment criteria of pneumonia involution were the size and echostructure of an airless zone. Stationary ultrasound was performed at least 3 times. Outpatient ultrasound was repeated at least 2 times within 1 month, in some cases children were observed up to 3 months with monthly dualfold study
130 kb

MEDICAL RESEARCH-SOCIAL AND ETHICAL ASPECTS OF MEDICAL WORKERS UNDER PREVENTION OF HEALTHY LIFESTYLES YOUTH

abstract 1021408053 issue 102 pp. 847 – 855 31.10.2014 ru 782
The aim of this work: a study of health - social and ethical aspects of health care workers in the framework of the prevention of a healthy lifestyle among youth. To study the level of students' knowledge about HIV prevention and detection of bad habits - drinking, smoking, drug addiction, a study author profiles. We have used empirical, sociological and statistical methods
136 kb

EVALUATION OF STRESS RESISTANCE ON HEART RHYTHM VARIABILITY AMONG FIRST CALLED SERVICEMEN IN THE AREA OF SPECIAL RISK

abstract 1011407078 issue 101 pp. 1193 – 1205 30.09.2014 ru 1545
The article presents the results of the evaluation stress resistance among servicemen in the area of special risk on heart rhythm variability parameters
125 kb

EVALUATION LABILITY OF THE VISUAL ANALYZER IN THE TEST OF CARDIORESPIRATORY SYNCHRONISM

abstract 1011407079 issue 101 pp. 1206 – 1216 30.09.2014 ru 754
The article presents the evaluation of the lability of the visual analyzer among healthy individuals and patients with lesion after a stroke in the occipital cortex, temporal and parietal lobes
203 kb

REGULATION ADAPTIVE STATUS WHEN DECREASING KIDNEYS FILTRATION CAPACITY

abstract 1011407161 issue 101 pp. 2391 – 2411 30.09.2014 ru 959
This article presents the results of regulation adaptive status when decreasing kidneys filtration capacity
2178 kb

INFLUENCE OF MALIGNIZATIONS LEVEL OF ASTROCYTIC HUMAN BRAIN TUMOR ON THE EXPRESSION OF CONNEXIN-43

abstract 0931309044 issue 93 pp. 644 – 656 30.11.2013 ru 1069
Study was performed on 12 samples of astrocytic human brain tumors, which differ by the level of malignancy and histological indications. The study was conducted with the method of immunohistochemistry using a commercially available antibody anti-connexin-43 (Cx 43), a prior test of which was carried out on myocardium tissue of rats (positive control). The study showed that with the increasing of malignant level of astrocytomas, there was marked the decreased level of connexin-43 expression of, which is apparently to be associated with the destruction of intercellular gap junctions in tumor tissue
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