Study of fibrotic complications and hydroxyproline content in mouse liver at different stages of generalized BCG-induced granulomatosis.

Generalized BCG-induced granulomatous was simulated in BALB/c male mice. The number of tuberculous granulomas in the liver and their size as well as the number of hepatocytes showing vacuolar degeneration increased from day 3 to 180 postinfection. Necrotic changes in hepatocytes were most pronounced at the acute phase of inflammation (days 3 to 30).

Fibrogenesis in granulomas and lung interstitium in tuberculous inflammation in mice.

The study in mouse model of BCG-induced granulomatous inflammation showed that early pulmonary fibrosis (day 3-30 postinfection) in tuberculous inflammation was primarily determined by increased number of fibroblasts in the lung interstitium and granulomas and enhanced fibroplastic activity. Fibroplastic processes are initiated via an increase in secretory activity of activated granuloma macrophages caused by the persistence of the pathogen in the cells of the mononuclear phagocytic system. The dynamics of hydroxyproline concentration under these conditions is determined by changes in the number and differentiation degree of fibroblasts in granulomas and lung interstitium at various stages of tuberculous inflammation.

[The analysis of disability caused by ear pathology in the adult population of Moscow during the period from 2007 to 2010].

Disability due to the loss of hearing is one of the main challenges to public health services and social protection of the population. The results of analysis performed by the author indicate the necessity of the comprehensive approach to the solution of disability problems for all social groups of the population. Special attention should be paid to the subpopulation of the able-bodied subjects with hearing disorders who need special medical and social rehabilitative measures to be developed and applied.

[State of the structure and functions of the arterial wall in patients with chronic heart failure against the background of permanent atrial fibrillation and assessment of vasoprotective effect of omega-3 polyunsaturated fatty acids].

Purpose: to evaluate the state of the structure and function of the arterial wall in patients with chronic heart failure (CHF) of ischemic etiology in combination with persistent atrial fibrillation (AF) AF and the dynamics of their changes during therapy with omega-3 polyunsaturated fatty acids (omega-3 PUFA).

Material And Methods: in the first phase in order to identify characteristics of a CCF and the restructuring of the arterial wall 120 patients with coronary artery disease and chronic heart failure II-III functional class (FC) were included in the study, then were divided into two equal groups according to the presence of persistent AF. In the second phase patients with CHF and persistent AF were randomized into 2 groups of 30 people to determine the vasoprotective effect of omega-3 fatty acids compared with the standard treatment of CHF.

Hydroxyproline content and fibrogenesis in mouse liver and lungs during the early stages of BCG granulomatosis.

In generalized BCG granulomatosis, fibrosis starts early (on day 3) and not only around the granulomas, but also in the organs. The severity of organ fibrosis is apparently determined by the concentration of granulomas, in particular their macrophages inducing proliferation of fibroblasts in organs and granulomas as well as activation of fibrogenesis. On day 30 after infection, the degree of fibrosis in the lungs was by 6 times higher than in the liver.

[The serum levels of glycosaminoglycans and hydroxyproline in relation to the age, gender, and blood group of apparently healthy individuals].

The paper gives the results of a study of the levels of glycosaminoglycans (GAG) and hydroxyproline (HOP) in 87 apparently healthy individuals of both sexes, aged 19 to 60 years. There is a decrease in the levels of GAG, total HOP, and peptide-bound HOP with advanced age. These indices are higher in subjects less than 45 years old than in those over the age.

[Serum levels of glycosaminoglycans, hydroxyproline, and fibronectin in patients with spinal osteochondrosis].

The content of the major components of the extracellular matrix was studied in 60 patients with spinal osteochondrosis over time during complex rehabilitative therapy including radon-containing mineral baths (before, 7-9 and 14-15 days after treatment). The complex rehabilitative treatment using radon baths in patients with spinal osteochondrosis was shown to result in a reduction in the serum level of glycosaminoglycans (GAG) and total oxyproline by the end of a course of therapy, which suggests the lower rate of destructive processes in the extracellular matrix. The determination of GAG concentrations and oxyproline forms in patients with asteochondrosis may be used to evaluate the efficiency of the treatment performed.

["Starburst" conjugates of proteins with carbocene polymers, carrying low molecular weight biologically-active compounds, and their immunogenicity].

The synthesis of starburst polymer-protein conjugates on the basis of bovine serum albumin and horseradish peroxidase was performed with the aim to study the possibilities of regulation of the immune response against the components of the conjugates. These polymers had one-point binding between the protein and the modifying carbon-chain polymer that contained 1-vinyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline (a salsolinol analogue) or bradykinin (peptide hormone) residues in its carbon chain. Changes in the chemical nature of the carbon-chain part of the polymer-protein conjugate were shown to increase or decrease the level of antibody production both against the low-molecular compounds attached to the polymeric fragments and against the protein carrier.

[The positive chronotropic effects of salsolinol on the isolated rat heart].

Salsolinol (6,7-dioxy-1-methyl-1,2,3,4-tetrahydroisochinoline), a product of nonenzymatic condensation of dopamine and acetaldehyde, produced a dose-dependent positive chronotropic effect on the rat isolated perfused heart: EC = 5.6 X 10(-6) M. Inderal, a beta-adrenoreceptor antagonist (10(-5) g/ml), blocked and naloxone, an opioid receptor antagonist (3.

[Effect of the degree of modification of trypsin amino groups with polymers on the enzymatic and conformation properties of the protein].

Trypsin was modified by introducing fragments containing an azo-bond into its molecule by the reaction of free amino groups of the enzyme with an azide of 2,2'-azobisisobutryic acid. Subsequently free-radical polymerization of N-vinyl pyrrolidone was carried out with the high molecular weight initiator obtained. The degree of modification of amino groups in trypsin was n = 6 divided by 12, which distinguishes this type of modification from that earlier proposed by the authors.

[Dyslipoproteinemia, oxygen-transport system of blood and oxygen balance in the tissues at early stages of diabetes mellitus].

The nature of the blood serum lipoprotein spectrum, blood oxygen transport function and tissue oxygenation were studied in 89 patients with early forms of diabetes mellitus and in 20 healthy persons. A higher level of pre-beta-lipoproteins and beta-lipoproteins was revealed; a lowered level of alpha-lipoproteins was determined above all by triglycerinemia. Hyperlipoproteinemia even at early stages of diabetes mellitus is capable of causing diverse changes in the blood oxygen transport system.

[Synthesis of trypsin polymer derivatives with single-point binding of the polymer-modifier and protein].

In order to produce carbon-chain covalent "star-like" conjugates of trypsin, the latter was modified by attachment of fragments containing the reaction-capable azo-bond and then N-vinyl pyrrolidone was polymerized on the resultant high molecular weight initiator. The molecular weight and proteolytic activity of the compounds were determined, and their thermal stability and resistance to autolysis were investigated. It was shown that the trypsin modified by poly-N-vinyl pyrrolidone of different molecular weights acquired greater resistance to autolytic and thermal denaturation.