Publications by authors named "L R Arutiunian"

The goal of the investigation was to study the changes of scleral matrix collagen in progressing primary open-angle glaucoma (POAG). In scleral samples of 16 patients aged 52-81 years with different stages of POAG amino acid composition, collagen content and cross-linking ratio characterizing tissue rigidity were estimated. Collagen I was found to be the dominant type in sclera of glaucomatous and normal eyes, though as POAG progressing the content and cross-linking increase, that underlies the scleral rigidity increase and permeability decrease.

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The aim of this work was to investigate prognostic value of creatine kinase MB-fraction and troponin T increase in patients after coronary bypass grafting (during 3-year prospective observation). Parameters were studied in 6, 12, 48 and 72 hours after surgical myocardial revascularization. It was revealed that increase of myocardial necrosis markers is associated with significant more frequent development of cardiovascular complications during 3-year prospective observation.

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The aim of the study was to investigate serum levels, as well as the ability to produce in vitro, some pro-inflammatory and anti-inflammatory cytokines in patients with brain tumours (BT). Serum concentrations of IFN-gamma, IFN-alpha, TNF-alpha, IL-4, IL-6, IL-8, and RA IL-1 were determined in 17 patients with brain tumours, and in 21 healthy donors. The results showed that baseline levels of cytokines studied was above normal in most patients (78%) had the highest rates of IFN-gamma.

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The biological effects of magnetic fields are known to be realized through the water structure of living organisms, which is the 60-90% of cells. In this respect the experiments investigating the magnetosensitivity of different tissues of rats by measuring the changes of hydration are of great interest. As it was shown, the tissues with higher hydration state (brain) were more sensitive to SMF influence, where depending on the exposure time the hydration of brain tissue increased.

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Two species of fleas, Spilopsyllus cuniculi Dale, 1878, and Stenoponia tripectinata tripectinata Tiraboschi, 1902, were reported in European rabbit and small rodents (common field mouse, yellow-necked field mouse, house mouse) respectively, of the Crimean peninsula. The finding of new for the fauna of the Crimea species of fleas demonstrates new changes in its fauna and enlarges the picture of the distribution area of these species, thus supplementing the available information on the ways of the fauna formation of the peninsular as a whole.

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