Biomedical subjects
Publications and source records attributed to L V Filev.
A study of 425 patients demonstrated that a pyodestructive process, located anywhere, affects platelet functional properties, resulting in the first place, in disorders of spontaneous cell disaggregation. Impaired platelet functional properties are conducive to the development of postoperative purulent and thromboembolic complications.
Clinico-laboratory and radionuclide (radio-hepatography with 131I-rose bengal and liver scanning with 198Au colloid solution) investigation of liver function was performed in 110 patients with polycythemia vera during exacerbation, in 16 patients with symptomatic erythrocytosis (10--chronic pulmonary disease, 3--polycystic kidney, 2--obesity, 1--peptic ulcer), and in 11 patients with a polycythemic form of myelofibrosis. The results of the radionuclide method showed disturbed liver function in 51 (46.3%) patients with polycythemia, in 4 patients with myelofibrosis and in 3 with erythrocytosis which were characterized by a decrease in hepatocytic absorptive-excretory function and a decrease in the activity of the reticulo-histiocytic stroma. Liver changes depended on a stage of disease and were detected earlier than with the use of biochemical methods. As distinct from erythrocytes, one-type disorders were noted in the patients with myelofibrosis. Correlation in the lever of RP accumulation in the spleen, its sizes and stage of disease was established. Liver function returned to normal after cytostatic therapy in the patients with stage IIA polycythemia, partially IIB stage, during remission.
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10 healthy men were examined, that underwent a 48 hours hypobaric (acute) hypoxia in the climate chamber "Tabaĭ", with conditions corresponding to those at an altitude of 4,000 m. The "ascent" and "descent" were performed correspondingly within 30 minutes. Increased share of dying lymphocytes and frequency of chromosomal aberrations in these were found in addition to an elevated activity of nucleolar organizers and to changed morphological patterns of argentophilic nucleoli. T- and B-lymphocyte contents remained unchanged. The role of the lymphopoietic alterations in autoimmune complications and of hemopoietic disorders in the mountains is discussed.
An examination of 49 patients with local and diffuse purulent peritonitis at different stages of surgical treatment has shown that the pyodestructive process in the abdominal cavity develops against the background of thrombocytosis, thrombocyte destruction, their decreased energy resources and tendency to retarded and irreversible aggregation. To correct the disturbed aggregation properties of thrombocytes the HBO and intraaortal infusions of antiaggregants and vasoactive drugs may be used.
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10 healthy men underwent a 48 hour acute hypobaric hypoxia in the "Tabaĭ" climate chamber imitating conditions of an altitude of 4.00 m. above s.l. The "ascent" and "descent" took 30 minutes each. Blood and bone marrow samples were taken before entering the chamber and immediately after leaving it. A decrease in colony-forming capacity of granulo- and monocyte and fibroblast precursors was shown, along with an increase in functional activity of circulating monocytes and monocyte precursors in bone marrow. A possible role of changes in granulo- and monocytopoiesis and in stromal cells is discussed in relation to the increased morbidity and decreased cicatricial and bone tissue reparation in the mountains.
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The influence of interlok, biotop and remantadine on the functional activity of monocytes was determined with the use of the NBT test permitting the quantitative evaluation of this characteristic. In this study interlok was found to give promising results in the treatment of acute viral hepatitis, due both to its antiviral action and to the stimulation of the functional activity of monocytes. biotop proved to render a sharply pronounced stimulating effect on the functional activity of monocytes, thus enhancing antiviral resistance. Remantadine suppressed the functional activity of monocytes and increased their lesion by the virus, thus creating favorable conditions for virus persistence in monocytes.
The functional activity of monocytes in acute viral hepatitis has been studied. As revealed by the NBT test, circulating monocytes are damaged by viruses and/or virus-containing complexes. Proceeding from this fact, the percentage of monocytes containing virus inclusions should be considered as the percentage of monocytes damaged by the virus, and the coefficient of the inclusion of viral particles should be considered as the quantitative characteristic of the viral damage of monocytes. The decrease of the percentage of functionally active monocytes creates suitable conditions for the persistence of the virus in monocytes and for the disease to become chronic.
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The claster- and colony-formation capacity of the offls--precursors of granulomonopoiesis in 29 normal subjects was studied in a bilayer agar system. Parallel cultures were used to investigate the effects of polypeptide factors of the hypothalamus and epiphysis. It was found that polypeptide factors of the hypothalamus and epiphysis have a regulatory influence on granulomonopoiesis at the level of precursor cells.
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