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Biomedical subjects

T N Kop'eva

Publications and source records attributed to T N Kop'eva.

At least 19 recordsLinked to original sources
PubMed1994

[The pathogenesis of small-plaque parapsoriasis].

The paper deals with the origin of parapsoriasis nodularis, which in its micronodular variant belongs to chronic dermatosis and has a clear-cut clinical and histological appearance. The disease arises most frequently after stress and occurs for the most part in middle-aged males. The leading role in pathogenesis of parapsoriasis nodularis is played by cellular immunity as indicated by reduced count of T-lymphocytes, active T-lymphocytes as well as the emergence of delayed hypersensitivity.

Adult↗
PubMed1993

[Morphology of changes in bronchial vessels in chronic inflammatory diseases of the lungs and their role in the development of pulmonary hypertension].

Histologic and morphometric examination comprised surgical and autopsy material of 20 patients with bronchiectatic disease and 14 patients with chronic bronchitis, respectively. The control group consisted of 14 autopsy follow-ups of the lungs of subjects who had neither pulmonary diseases nor heart defects. Structural reorganization of the lungs in both diseases was characterized by enlargement of the middle and inner coats of arteries, hyperplasia of their inner elastic membrane and hypertrophy of the middle coat of veins. Changes mainly developed on the level of the subsegmental bronchi and bronchiectases. A direct correlation was seen between the degree of hypertrophy of the walls of bronchial vessels and those of the pulmonary artery. Participation of bronchopulmonary shunting in the development of lung hypertension is discussed.

Adult↗
PubMed1992

[Local defense mechanisms in chronic nonspecific pulmonary inflammation].

The mechanisms of non-immune and immune injuries in chronic nonspecific lung inflammation are analysed on the basis of authors' research and literature. The data given concern the changes of the bronchial mucociliary transport system, incomplete functions of alveolar macrophages and polymorphonuclear neutrophils in chronic inflammatory foci, increase in the number of intra- and extracellular bacteria, metabolism of lung phagocytes in different chronic inflammatory lung diseases. The urgency of lung phagocyte and lymphocyte investigation both in specific cellular and humoral immune reactions, as well as in realization of immunopathologic mechanisms developing in chronic inflammation is emphasized.

Antibody Formation↗
PubMed1991

[Functional activity of the neutrophils in the bronchoalveolar space in chronic bronchitis and bronchiectasis].

Bronchoalveolar lavage fluid neutrophils were studied by the cytologic methods in 58 patients with chronic bronchitis, 63 ones with bronchiectasis, and 8 normal controls. The study included cytospectrophotometry of myeloperoxidase and alkaline phosphatase activity and estimation of active oxygen-producing cells in the NBT test. Neutrophilic functional activity was different in the patients with chronic bronchitis and bronchiectasis. Neutrophilic myeloperoxidase and alkaline phosphatase activities were lower in the patients with chronic bronchitis than in those with bronchiectasis, whereas the counts of cells active in the NBT test were low in both patient populations.

Bronchiectasis↗
PubMed1991

[Dynamics of the cytologic and bacterioscopic changes in bronchoalveolar washings in acute focal pneumonia].

The authors analyze cytologic and bacterioscopic changes in bronchoalveolar washings in 37 patients with acute focal pneumonia on days 4 through 44 of the disease. Bronchoalveolar washings obtained from 11 subjects without pulmonary conditions were examined for control. Immunofluorescent examination of brush biopsy specimens of the bronchial epithelium from 4 patients, taken at the peak of pneumonia, has revealed respiratory viruses antigens. The highest numbers of free bacterial colonies and intracellular bacteria were detectable also at the peak of pneumonia. In contrast to reference specimens, patients' bronchoalveolar washings were characterized by elevated absolute counts of the neutrophils, bronchoepitheliocytes, and destroyed cells during the peak and regress of the disease. During convalescence these cell counts were essentially reducing though persisting significantly elevated as against the control. Absolute counts of alveolar macrophages and lymphocytes in bronchoalveolar washings were virtually unchanged over the course of the disease. The authors claim that the cytologic and bacterioscopic characteristics of bronchoalveolar washings objectively and fully reflect the activity of the inflammatory reaction in the lungs.

Adolescent↗
PubMed1991

[Structural-functional characteristics of phagocytes in the broncho-alveolar lavage fluid in acute focal pneumonia].

The alveolar macrophages and neutrophils of the bronchoalveolar fluid from 37 patients with acute focal pneumonia were studied cytochemically. A comparison group consisted of 20 patients with primary chronic bronchitis, 11 subjects without pulmonary affections served control. Phagocytes with a high motile, oxygen-dependent bactericidal and hydrolytic activity as well as with increased level of absorptive capacity prevailed during the peak of the disease and its regression. At the phase of convalescence the number of phagocytes with a high oxygen-dependent bactericidal and hydrolytic activity decreased but their high absorptive activity was retained.

Acute Disease↗
PubMed1991

[Morphologic lung changes in a female patient with Zivert-Kartagener's syndrome].

Histologic and ultrastructural pulmonary changes in a female with a classical Zivert-Kartagener's syndrome are described. Congenital anomalies of the columnar epithelium brushes as well as defects acquired in the process of inflammation (decreased number and various length of bruches with their orientation disturbances, additional doublets and the lack of basal bodies) were revealed at transmission and scanning microscopy level. Follicular bronchiectasis, chronic pneumonia, dystelectasies, emphysema result from the mucociliary clearance disturbance and are of an acquired nature.

Adult↗
PubMed1991

[Dynamics of local defensive reactions in the lungs in acute experimental inflammatory process induced by respiratory syncytial virus].

Study has been made of broncho-associated lymphoid tissue (BALT), the number and functional activity of lung phagocytes, with 42 mice BALB/c, induced by respiratory-syncytial virus. With virus inflammation a decreased number of lung macrophages, their stronger attraction and increased lung chemotaxis have been observed. The addition of bacterial infection was accompanied by an increase in lung neutrophil, lymphocyte and macrophage, a decrease in lung neutrophil chemotaxis, an increase in macrophage phagocytosis and BALT hyperplasia.

Animals↗
PubMed1990

[Morphology of the thymus gland in children with myasthenia gravis].

Thymus excised from 68 patients suffering from juvenile myasthenia was subjected to histological, histochemical and electron microscopy studies. The changes in the thymus involved hyperplastic immune response in the form of lymphoid follicles with the germinal centers and focal plasmocytic infiltration. In myasthenia, the permanent characteristic of the thymus was activation of epithelial cells and Hassal bodies. A direct relationship was discovered between the efficacy of thymectomy and intensity of hyperplasia of the glandular lobules of the thymus. The lobule number of lymphoid follicles with the germinal centers did not affect the results of the surgical treatment of patients suffering from myasthenia.

Child↗
PubMed1990

[Changes in the lesser circulation vessels in chronic nonspecific lung diseases].

Clinicomorphological study of the pulmonary circulation vessels was performed in 20 patients with bronchiectatic disease without right ventricle hypertrophy and in 14 patients with chronic bronchitis complicated with pulmonary heart. Pathology data of persons dying from diseases other than vitium cordis and lung diseases were used as control. Morphological signs of pulmonary hypertension are found in all cases of chronic nonspecific lung diseases. The most pronounced changes develop in the vascular segment starting from arterioles and up to the arteries of muscle type with the diameter of 400 microns. The dependence of the pulmonary arteries changes on the type of lung disease is established. Pathological changes in the walls of the pulmonary circulation vessels, in parallel with pronounced compensatory alterations, are found in cases complicated with pulmonary heart.

Adolescent↗
PubMed1989

[The cytological characteristics of bronchoalveolar washings in chronic bronchitis].

Bronchoalveolar washings (BAWs) from 30 patients with nonobstructive chronic bronchitis (CB) were examined cytologically. On the basis of the taxonomic analysis of the data on the cytological examination of the BAWs, all the observations were classified as belonging to degrees I, II and III of the cytological activity of the inflammatory process in the lungs. It was revealed that the minimal degree of the activity of the inflammatory process was characterized by a marked increase in the relative numbers of the cells of the desquamated cylindrical epithelium and destroyed cells along with a significant decrease in the proportion of macrophages and an increase in the relative count of neutrophils. The increased activity of the inflammatory process in the lungs was accompanied by a progressing increase in the proportion of neutrophils and a decrease in the relative count of macrophages and the cells of the cylindrical epithelium. Clinico-cytological analysis of the observations was also performed. The most complete and objective estimation of the degree of the inflammatory process activity in the lungs in the patients with CB was provided by the cytological indices of the BAWs.

Adolescent↗
PubMed1989

[Morphology and pathogenesis of chronic bronchitis].

Histologic and ultrastructural features of the chronic catarrhal bronchitis are presented and its pathogenetic mechanisms are discussed. An important role in the development of bronchitis of the mucociliary transport system damage, retention of the mucus and bacterial contamination of the respiratory tract is analysed. Current hypothesis of the chronic bronchitis development based on the disturbance of the protease-antiprotease and oxidative-antioxidative balance is presented. The data on the role of the specific and non-specific local immune mechanisms of the lung defence in the development of the exacerbations are given.

Bronchitis↗
PubMed1989

[Clinical and morphologic parallels in children with rheumatoid mono- and oligoarthritis].

Altogether 88 children with rheumatoid arthritis were examined. Of these, 36 patients were with an injury to one articulation and 52 with an injury to one to three articulations. The clinical features of the articulation syndrome, the data obtained as a result of studying synovial fluid and of the morphological picture of synovial biopsy specimens made it possible to denote rheumatoid mono- and oligoarthritis in children as benign varieties of the disease with primarily local (in articulations) inflammatory process. The difference found was only qualitative as regards the intensity of the clinico-laboratory signs (more pronounced in patients suffering from oligoarthritis). This fact provides basis for making the diagnosis of monoarticular or oligoarticular rheumatoid arthritis.

Adolescent↗
PubMed1988

[Clinical, cytological and immunological characteristics of the effect of ENKAD on the mouth mucosa in Sjögren's syndrome].

A study of the clinical efficacy and the immunomodulating and antiinflammatory effect of ENCAD was conducted in 20 patients with Sjogren's disease (SD) of various degrees of activity of oral mucosa involvement and in a group of 23 healthy controls, with a saline solution as placebo. ENCAD was shown to lessen the expression of the clinical symptoms of xerostomia in both groups of a low and a moderate and high degrees of local activity of an inflammatory process. A tendency to the normalization of regeneration and desquamation in the oral mucosa epithelium was observed against a background of the reduction of an inflammatory reaction. ENCAD produced an immuno modulating effect lowering the blood level of theophylline-resistant and raising the level of theophylline-sensitive T-lymphocytes.

Adult↗
PubMed1986

[The immune system of the lungs in healthy subjects and in chronic nonspecific diseases].

Resistance of lung to the action of damaging factors is determined by the mechanisms of non-specific defence and immunologic responseveness that is expressed by systemic and local immune reactions. Local immune response in bronchi is brought about by a lymphoid tissue associated with bronchi. Alveolar macrophages carry out a main protective function in the respiratory parts. Participation of an immune system in the pathogenesis of chronic non-specific diseases is expressed by a lymphoid tissue hyperplasia, increased synthesis of immunoglobulins, increased number of macrophages and neutrophils. The role of an immunocomplex mechanism and cell hypersensitivity factors in the focus of damage remains unclear. A promising hypothesis in the study of immunopathology of chronic non-specific lung diseases is that of the role of an immune imbalance is their etiology and pathogenesis.

Bronchi↗
PubMed1986

[Morphology of articular cartilage in osteoarthrosis].

A combined histological, histochemical, histoenzymochemical and morphometric study of 42 articular cartilage samples from patients with different degrees of osteoarthrosis (OA) was made. Ten cartilages without pathology taken at autopsy were used as controls. A characteristic feature in case of cartilage destruction by OA is a progressive loss of glycosaminoglycans (GAG) from the matrix with its defibrination and uzur formation. Decrease in GAG content is associated with partial destruction of chondrocytes and the emergence of cellular clones reflecting reparative regeneration of the cartilage. However, even at the early OA stage the reparation is not adequate, as the GAG content in the matrix at the sites of chondrocyte proliferation remains decreased compared to the control age group.

Adult↗