[Prevalence of DNA viruses in maxillofacial area of HIV-infected]. / Porazhennost' DNK-virusami cheliustno-litsevoi oblasti bol'nykh s VICh-infektsiei.

DNA viruses have high oncogenic risk viruses; they cause emergence of Kaposi sarcoma, Lymphoma, Squamous cell carcinoma. HIV immunodeficiency promotes increase in frequency of such tumors. Etiotropic therapy of HIV patients considerably reduces prevalence of DNA viruses and a viral malignization.

[STRUCTURE OF THE SPLEEN AT CHRONIC INTOXICATION OF THE ORGANISM BY SODIUM TETRABORATE AND AFTER INTOXICATION].

The structure of a spleen of 110 white not purebred rats - males (10 intact, 50 control, 50 experimental) at chronic intoxication by sodium tetraborate and the after intoxication period - the 7, 14, 30 and 60 days were studied. Chronic impact of sodium tetraborate on an organism resulted into increase in the relative weight of a spleen in comparison with body weight that led to increase in weight coefficient of a spleen. Increase in the relative area of all functional zones (periarterial zone, the germinal center, mantle and marginal zones) of lymphoid slug of a white pulp is established. Decrease of an index a red/white pulp, as a result of increase of the area of a white pulp in response to chronic intoxication of an organism is revealed. During the after intoxication period as a result of decrease in immune tension there occured decrease of body weight and decrease in the area of a white pulp. During this period there was a reliable decrease of the area of lymphoid slug and decrease in the area of its functional zones (a periarterial zone, the center of manifolding, mantle and marginal zones).

[Morphofunctional reorganization of the kidneys in lymphatic outflow disturbance]. / Morfofunktsional'nye preobrazovaniia v pochkakh pri narushenii limfoottoka.

In 115 Wistar male rats structures and rates of tissue blood flow have been studied in the cortical and medullary renal substance histologically, polarographically (estimation of the volumetric tissue blood flow by hydrogen clearance). Systemic arterial (peritoneal aorta), venous (caudal vena cava) and lymphatic (renal lymph nodes) pressures have been measured, normal and after ligation of the thoracic duct at early (1-3 days), middle (1 month) and late (2-3 months) periods. In 1-3 days edema and dystrophy of the renal parenchyma, decrease of the blood flow rate in the cortical and its increase in the renal medullary substance, as well as a sharp elevation of pressure in the lymph nodes are observed. In 1 month of the experiment together with dystrophy and edema moderate sclerosis, decreasing blood flow rate in the cortical and medullary substance are noted. Increase of the systemic arterial and venous pressure and decreasing pressure in the lymph nodes, as well as a sharp increase of the renal nodes mass are revealed. In 2-3 months of the experiment, together with sclerosis of the renal parenchyma, elevated blood flow rate is observed in the kidneys and decreasing pressure in the lymph nodes up to its initial value takes place.

[Roentgenologic investigation of collateral lymphatic pathways after ligation of the thoracic duct]. / Rentgenologicheskoe issledovanie kollateral'nykh limfaticheskikh putei posle pereviazki grudnogo protoka.

In 80 Wistar rats by means of electroroentgenolymphography lymphatic pathways and thoracic duct have been studied, normal and after ligation of the latter in 1-3 days, 1 and 2-3 months. Contrasting of the thoracic duct in the control animals reveals its additional ducts, that run in parallel to the main collector and they get into it after a certain distance, as well as different time phases of filling the duct are noted. When the thoracic duct is ligated, in 1-3 days dilatation of the ductal cistern, contrasting of lymphatic vessels and nodes in other regions are observed. In 1 month of the experiment the thoracic duct cistern is poorly expressed in comparison with the early time. The contrast substance continues to get into the group of the lymph nodes in other regions. A network of anastomoses of lymphatic vessels is formed in the area of ligation. In 2-3 months, when the contrast substance continues to get retrogradely into other groups and regions of the lymph nodes, final restoration of the lymph-flow takes place at the expense of formation of collateral pathways.