[The biomicroscopic evaluation of the blood microcirculatory bed in the mesentery of the small intestine during experimental perftoran infusion under normovolemia].

Dynamics of biomicroscopic state of hemomicrocirculatory bed (HMCB) of small intestinal mesentery was studied in go both sexes albino outbred rats in conditions of intravenous administration of 1.0 ml perfuoram (PF) with simultaneous control of the experiment by intravenous isotonic solution administration. Biomicroscopy was performed 30 minutes, 3, 6 and 24 hours later.

[Clinical effectiveness of bio-micro-ophthalmoscopy using aspherical high-diopter lenses].

The author presents an optimized method of bio-ophthalmoscopy using new Russian aspherical high-diopter lenses +60.0, +75.0, and +90.

[Ultrasonic ethmoidotomy combined with intracavitary magnetotherapy in chronic polypous ethmoiditis].

The efficacy of ultrasonic ethmoidectomy combined with magnetic therapy was investigated in 90 patients. Ultrasonic ethmoidectomy was applied with the help of a LORA system consisting of a generator and an acoustic unit connected to a waveguide with a spoon-shaped end (44 Hz frequency and 35-40 microns amplitude). Under visual control the ultrasonic spoon was inserted into the meatus nasi medius, and the injured medial, superior and some anterior cells of the ethmoidal bone were opened.

[Immunotropic activity of cyclophosphane].

The sensitivity of ram erythrocyte-specific B-cells to cyclophosphane was studied. An antigen and two polyclonal activators, lipopolysaccharide and dextran sulfate, were used as the clone activators. The immunodepressant effect of cyclophosphane was found to depend on the degree of the immunocompetent clone activation.

[Relative hypertrophy of the right ventricle in silver foxes selected for domestication behavior].

Silver foxes selected for domestication behavior were found to have relative hypertrophy of the right heart ventricle, which was 21% as enlarged in males and 18% as enlarged in females as compared with non-domesticated animals. It was established by stereological methods that hypertrophy occurs mainly at the expense of an increase in the absolute and relative content of myofibrils in cardiomyocytes, with the absolute total volume of the mitochondria being equal both in domesticated and non-domesticated animals. It was shown by means of dissociated cell counts that in both animal groups, the absolute number of cardiomyocytes and their nuclei in the right ventricles is approximately similar.

[Acetylation of sulfanilamide substances in toxic lesions of the liver].

In experimental toxic hepatitis induced by injection of CCl4 into rats, the rat blood and urine content of acetylated sulfamonomethoxine diminishes, the acetylation of sulfamonomethoxine and norsulfazole in an isolated stomach of the rat reduces, and acetylation of sulfamonomethoxine is inhibited by rat liver and small intestine homogenates. This confirms that different types of pathology (infectious and non-infectious) provoke the same line of changes, namely the reduction of acetylation of sulfanilamide substances in the body. CCl1 decreases sulfamonomethoxine acetylation by a mixture of the mitochondria and microsomes of the rat liver, i.

[Age-related changes in the cardiomyocyte population of the heart ventricles of white rats].

The total number of muscle cells and their nuclei in the rat ventricle walls at the age from 3 to 30 months was counted by means of alkaline dissociation of the prefixed myocardium. The total number of cardiomyocytes and their nuclei was shown to increase on the second year of life, this increase being much more pronounced and attaining the maximum much earlier in the right ventricle than in the left one. At the senile age (30 months) the number of cardiomyocytes in the ventricles decreases but the mean size of cells increases.

[Effect of the total flavonoids from red clover and chick-pea on the lipid content in the blood and liver of rats].

Total flavonoids from clover red and nut, containing isoflavones, decreased the content of cholesterol and triglycerides in intact rats, inhibited the development of hyperlipidemia, caused by Triton WR-1339, prevented accumulation of triglycerides in rat liver and blood caused by ethanol administration. The flavonoids from these plants inhibited lipolysis, stimulated by adrenaline.

[Modeling of myocardial pathology in mice with the surgical methods].

A description of three operations on the heart in mice is presented: a supravalvular narrowing of the ascending aorta, banding of the apex of the heart, and ligation of the coronaries. These surgical interventions permit to obtain in mice a functional overloading and hypertrophy of the myocardium, a cardiac aneurysm and occlusive myocardial infarction.

[Immunosuppressive properties of vinblastine and colchicine].

The action of vinblastine and colchicine on the populations of antibody-forming cells, their precursors and stem cells using a model of primary immune response and in the transplantation system was studied using techniques by Jerne and Nordin (1963), Kennedy et al. (1965), and Till and McCulloch (1961). It was discovered that vinblastine and colchicine, at single administration 48 hours after immunization, inhibited immune response completely.

[Quantitative characteristics of the multiplication of muscle cells in the course of postnatal cardiogenesis in mice].

Changes in the absolute number of muscle cells and nuclei in the ventricle during the 1st year of postnatal life were followed in males of the CC57BR mice. The counts were carried out in the cell suspension obtained from the fixed cardiac muscle by means of alkaline dissociation. The number of muscle cells and nuclei reliably increased during the 1st month of life and ceased to increase when the maturity was attained (2-3 months).

[Determination of the quantity of cells in different organs and tissues following alkaline dissociation].

A tissue following fixation for 10-15 days with formalin was treated with 50% KOH aqueous solution during 18 hours, which led to complete dissociation of the tissue into cells. Suspension of cells was placed into the counter of Fuchs-Rosenthal and numbers of nuclei in cells of definite tissues were counted. On preparations of the same suspension in 1000 cells distribution of the latter according to the number of nuclei was determined.

[Preparation of isolated cells by alkaline dissociation of formalin fixed tissue].

A procedure is described for preparation of isolated cells by treating formaldehyde fixed tissues with a 50%-solution of KOH. This results in complete yield of cells from a variety of organs (liver, kidney, heart, spleen, etc.).