[MORPHOLOGICAL CHANGES IN THE LIVER OF MICE WITH ANTIPHOSPHOLIPID SYNDROME AND ADMINISTRATION OF NITRIC OXIDE SYNTHESIS MODULATORS].

The aim of the research is to study the effect of L-arginine, the precursor of nitric oxide, and aminoguanidine, the inhibitor of inducible nitric oxide synthase, on morpho-functional changes in the liver of BALB/c mice with antiphospholipid syndrome. The study was carried out on 50 female BALB/c mice modelled with antiphospholipid syndrome. L-arginine (25 mg/kg) and aminoguanidine (10 mg/kg) were used for its correction. The material for microscopic study was taken by the method of Horalsky. The liver tissue samples were stained with hematoxylin and eosin. Significant hemodynamic disorders with manifestations of thrombosis in the liver in cases of antiphospholipid syndrome followed by destructive-degenerative changes of the stoma and parenchyma have been established. Administration of L-arginine in antiphospholipid syndrome caused restoration of the lobular and beam organization of the liver. The maximum effect on the morphological state of the liver was observed in using a combination of L-arginine and aminoguanidine. The protective effect of L-arginine and aminoguanidine on the microcirculation has been proved that evidences liver function restoration in mice with antiphospholipid syndrome.

[NEUROPROTECTIVE EFFECT OF AMINOGUANIDINE IN EXPERIMENTAL OBSTETRIC ANTIPHOSPHOLIPID SYNDROME].

The aim of the research was to investigate the effect of aminoguanidine on the content of autoantibodies in the serum, nitric oxide synthesis (NO), glial fibrillary acidic protein (GFAP) content and indicators of free radical oxidation in the cerebral hemispheres of BALB/c mice with antiphospholipid syndrome (APS) on the 18th day of pregnancy. An increase in the content of autoantibodies to brain proteins (120 kDa, 150 kDa, and >170 kDa) was detected in the serum of BALB/c mice with APS on the 18th day of pregnancy. An increase in the content of GFAP (total), GFAP (49-37 kDa), NO2¯, NO3¯ and prooxidant-antioxidant system imbalance in the cerebral hemispheres of pregnant mice with APS was established. With administration of aminoguanidine into the pregnant mice with APS, a decrease in the content of autoantibodies to brain proteins (120 kDa and 150 kDa) in serum was proved. With the introduction of aminoguanidine, a selective inhibitor of inducible NO synthase on the 18th day of pregnancy the increase in GFAP (49-37 kDa) in the cerebral hemispheres of APS mice was established, and the GFAP (total), NO2¯ and NO3¯ content did not change significantly, relative to the indicators of pregnant animals with APS. With introduction of aminoguanidine in cases of APS on the 18th day of pregnancy lesser manifestations of oxidative stress in the cerebral hemispheres, a decrease in the activity of lipid peroxidation processes, an increase in the activity and content of the antioxidant system components was evidenced. Thus, aminoguanidine has a neuroprotective effect in obstetric antiphospholipid syndrome in the BALB/c mice.

[PRODUCTION OF REACTIVE OXYGEN SPECIES AND DEVELOPMENT OF APOPTOSIS IN BLOOD LEUKOCYTES IN EXPERIMENTAL ANTIPHOSPHOLIPID SYNDROME].

The aim of the study is to investigate the processes of apoptosis and the level of formation of reactive oxygen species (ROS) in blood cells of BALB/c female mice in experimental antiphospholipid syndrome (APS). The content of living, apoptotic and necrotic cells in blood leukocytes was evaluated. Apoptosis in cells was detected using Annexin V conjugated to GFP and propidium iodide. ROS in blood leukocytes were detected using 2',7'-dichlorofluorescein diacetate. The redistribution between the leukocytes populations was assessed by the magnitude of direct (FS) and lateral (SS) light scattering on the flow cytofluorimeter. It was established that the APS reduced the viability of blood leukocytes compare to the control. It is likely that their death is due partly to the activation of apoptosis. In the animals with APS a redistribution between the two main types of leukocytes (granulocytes and agranulocytes) was found out. An increase in the number of granulocytes in the blood was evidenced in cases of APS. It was established that the basal level of ROS production in granulocytes reduced by 27% and in agranulocytes - by 19% compare to the control. Thus, taking into account the attained results it can be argued that in the pathobiochemical mechanisms of APS development the enhanced activation of apoptosis and deficient formation of ROS is significant.

[The tragedy of starving population of the central regions of Russia in 1920-1922].

On the basis of archival documents and literary sources the importance of nutrition factors determining the importance of its influence on the level of demographic indicators and morbidity during the famine of the 1920s in the Samara Gubernia is demonstrated. The contribution of foreign public organizations in saving people from starvation is presented.

[The Personnel Potential of Civilian Health Care in the Rsfsr During the First Period of the Great Patriotic War].

The article, presents, on the basis of archive materials for official use, the analysis of the state of civil health care in RSFSR in the first period of the great Patriotic war. The staffing of institutions with physicians and nursing medical personnel, the load of medical personnel in absolute terms and in comparison, with pre-war period are studied. The absence of fundamental differences in the personnel rotation in Moscow and Leningrad, despite different military and economic conditions is demonstrated. The article describes the status of staff in nursery establishments of the system of motherhood and infancy protection in the Kuibyshev Oblast.

[MIELIN BASIC PROTEIN IN THE BRAIN TISSUE OF THE BALB/C MICE WITH EXPERIMENTAL ANTIPHOSPHOLIPID SYNDROME AND AFFECTION WITH NITRIC OXIDE SYNTHESIS MODULATORS].

The aim of the research was to study the content of myelin basic protein (MBP) in the cerebellum and cerebral hemispheres of the BALB/c mice with experimental antiphospholipid syndrome as well as in cases of introduction of L-arginine and aminoguanidine. The research was performed using 50 female BALB/c mice, in which APS was simulated. L-arginine (25 mg/kg) and aminoguanidine (10 mg/kg) were used for correction. A Western blot analysis of the main myelin protein (antibodies against MBP) as well as a densitometric analysis of immunoreactive zones was carried out using the samples of the cerebellum and cerebral hemispheres of the control and experimental BALB/c mice. The increased content of MBP (18.4 kDa) in 256 times (p<0.001) in the tissue of the cerebral hemispheres of the BALB/c mice with antiphospholipid syndrome was evidenced compare to the control. It was found out that in the samples of the cerebral hemispheres, the content of MBP (18.4 kDa) increased in 4.8 times (p<0.001) with the use of L-arginine, in 10 times (p<0.001) - with aminoguanidine, in 13 times (p<0.001) - in cases of the combined use of L-arginine and aminoguanidine compare to the indices of the mice with antiphospholipid syndrome. It was proved that the content of MBP (95-110 kDa) in the samples of the cerebral hemispheres of the experimental animals did not significantly change compare to the control. In the cerebellum of the animals with antiphospholipid syndrome, it was established that the level of MBP (95-110 kDa) increased in more than 5 times (p<0.001), while the MBP (18.4 kDa) was found in very small amounts compare to the control. In cases of lone and combined use of nitric oxide synthesis modulators (L-arginine and aminoguanidine), there were no significant changes in the level of MBP (95-110 kDa) in the cerebellum of BALB/c mice with antiphospholipid syndrome compare to the indices of the BALB/c mice with antiphospholipid syndrome only.

Comparison of chemotherapy and X-ray therapy with Ukrain monotherapy for colorectal cancer.

Ninety six colorectal carcinoma patients were included in a randomised study, 48 were treated with Ukrain monotherapy (15 with metastatic and 33 with nonmetastatic colorectal carcinoma) and 48 with 5-fluorouracil (5-FU) and X-ray therapy (the same randomised groups). The results of therapy including clinical, haematological, immunological and biochemical parameters show that Ukrain has favourable properties in the treatment of colon and rectal cancer as a monotherapy because of its malignotoxic and immunomodulating action. Objective response rate in the group of metastatic colorectal cancer treated by Ukrain was 40%. There was no registered tumour regression in the group treated by 5-FU. Operability is strongly facilitated by pretreatment with Ukrain. The survival rate (up to 21 months) in the Ukrain-treated patients with nonmetastatic colorectal cancer was 78.6% and 33.3% in a corresponding control group. Ukrain is a new effective drug in the therapy of colorectal cancer. It can be useful both for the therapy of metastatic colorectal cancer and for neoadjuvant therapy of nonmetastatic colorectal cancer.