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Biomedical subjects

M A Danilov

Publications and source records attributed to M A Danilov.

15 recordsLinked to original sources
PubMed1995

[The enhancement of treatment efficacy in chronic liver failure by using hemoperfusion across donor hepatocytes and spleen fragments].

Hemoperfusion via donor hepatocytes and splenic fragments is an effective adjuvant method of treatment of hepatic insufficiency, especially in patients with autoimmune disease. Hemoperfusion effect occurs due to normalization of mesenchymoinflammatory and immunological indices as a result of positive action of hepatotropic and immunotropic factors of the spleen. The highest effectiveness of the above hemoperfusion is reached in its early use, that is before the disease becoming chronic.

Autoimmune Diseases↗
PubMed1991

[Experience in using preserved xenogeneic hepatocytes in the combined treatment of jaundice patients].

The authors give brief characteristics of the apparatus "subsidiary liver" and describe the mechanism of its work. The method of taking the liver of piglets and isolation of hepatocytes are described. The characteristics of patients are given in who the apparatus "subsidiary liver" was used. Certain parameters of blood were shown to be reduced after using the apparatus "subsidiary liver".

Acute Disease↗
PubMed1990

[Treatment of severe hepatic insufficiency by perfusion of patients' blood through a suspension of cryopreserved hepatocytes].

The results of hemoperfusion through a suspension of cryoconserved hepatocytes in 21 patients with severe hepatic insufficiency are analysed. It is shown that the manipulation had a beneficial effect on the clinical and biochemical indices, which was manifested by diminished jaundice and skin pruritus, increased physical activity, improved appetite; reduced levels of bilirubin, transaminase, alkaline phosphatase, bile acids, and cholesterol. The information gained is evidence that the method can be included in the complex treatment of patients with severe hepatic insufficiency.

Adult↗
PubMed1988

[Dynamic activity of the splenic lymphocytes during the modelling of chronic denervation-delymphatization of the kidneys in mice].

In experiments on mice CBA the activity of spleen lymphocytes was investigated in sham-operated mice and in mice with denervation-delymphatization of the both kidneys. The activity of lymphocytes was determined by registration of amounts of colony-formed elements by the method of Till and McCulloch. Periodic increase of the lymphocytes activity has been observed in mice with denervation-delymphatization kidneys. It is supposed that the periodic activation of lymphoid system, induced by denervation-delymphatization, may be one of triggering mechanisms of transplant rejection.

Animals↗
PubMed1983

[Intrasplenic xenotransplantation of human fetal pancreatic islet cell cultures in rats with experimental diabetes mellitus].

Islet cell cultures obtained from the pancreas of human embryos were transplanted to the spleen pulp of rats with alloxan diabetes mellitus. During 1-2 weeks after transplantation, 6 of the 8 recipients manifested a decrease in glycemia to normal or almost normal. The antidiabetic effect of xenotransplantation of islet cell cultures was well preserved throughout the entire observation period (up to 4 months). Two recipient rats with stable normoglycemia were subjected to splenectomy. One week after operation the animals manifested the recurrent grave diabetic status. Histological study of the removed spleen has shown the red pulp to contain the accumulations of implanted islet cells.

Animals↗
PubMed1976

[Excretion of catecholamines and their precursors after heterotopic heart allotransplantation in rats].

The urine content of catecholamines and their precursors was studied in lineal rats subjected to heterotopic heart allotransplantation, the dynamics being traced from 3 days preoperatively and throughout the period of transplant function (6.8 +/- 0.8 days, on the average). Heterotopic heart allotransplantation was shown to activate the sympathetic link of the sympathoadrenal system.

Animals↗
PubMedDate not supplied

[Preparation of a suspension of isolated hepatocytes using the Soviet drug collalitin].

Isolation of individual hepatocytes suspension from rats was carried out using trypsin, collagenase and collalytine; maximal yield of the viable hepatocytes was obtained when 0.05% solution of collagenase was used. Trypsin was ineffective in production of viable cells, while collalytine from pig pancreas exhibited the satisfactory results at concentration of 0.15-0.20%.

Animals↗
PubMedDate not supplied

[Effect of vitamin E on the energy allowance of functional and plastic processes in the myocardium during ischemia and reoxygenation].

It was found that preliminary (before ischemia) administration of vitamin E in a dose of 200 mg/kg to albino rats causes the changes in energy support of the ischemic myocardium leading to prolonged maintenance of synthesis processes: energy production, cGMP concentration, unsaturation of cell membrane lipids increase. The combination of all these factors probably determines the anti-ischemic effect of vitamin E providing adequate restoration of the myocardial function in the postischemic period.

Animals↗
PubMedDate not supplied

[Action of vitamin E on the normal myocardial energy balance and in ischemia and reoxygenation].

The energy mechanisms of formation of anti-ischemic myocardial resistance have been studied by means of vitamin E, administered to rats 24 hours before modelling ischemia in a dose of 200 mg/kg, in which the antioxidant activity of the preparation is pronounced. At the stage of ischemia, myocardial energy was studied by the differential calorimetry method, in the pre- and postischemic periods on a functioning heart in a stand according to Neely. It is shown, that vitamin E in ischemic and postischemic periods enhances the power and efficiency of myocardial energy consumptions: decreases irrational energy consumptions in the initial period of ischemia (the first 15 minutes) and supports a higher level of energy production further on, increasing thus the admissible periods of myocardial ischemia from 20-25 to 30-35 minutes, maintains in the postischemic period a higher level of total useful energy consumptions and coefficients of the oxygen utilization efficiency as compared with the experiments without preliminary administration of vitamin E. It is shown, that the anti-ischemic defence of the myocardium by vitamin E is formed already in the preischemic period and conditioned by redistribution of energy consumptions and growth of the share of energy consumptions aimed at the maintenance of the initial structural-functional homeostasis of myocardial cells.

Animals↗