[Assessment of changes in the parameters of the quality of life of children aged 14-15 years with chronic catarrhal gingivitis after a complex of therapeutic and preventive measures].

The Purpose Of The Study: To assess changes in the parameters of the quality of life of children aged 14-15 years with chronic catarrhal gingivitis after the implementation of a complex of therapeutic and preventive measures.

Materials And Methods: The study involved 2 groups of children aged 14-15 years: group 1 - 60 children with chronic catarrhal gingivitis, group 2 - 60 children without signs of periodontal tissue damage. In 1 group of children, a complex of therapeutic and preventive measures was carried out for a month.

[Ways of solving the problem of dentin hypersensitivity in children after professional oral hygiene].

Aim: To design an algorithm of decreasing dentin hypersensitivity in children after professional oral hygiene.

Methods And Materials: Intact teeth extracted for orthodontic reasons in children and adults were involved in the pilot study. The enamel surface was cleaned by manual instruments and then polished with polishing pastes containing sodium bicarbonate, fluoride, calcium and phosphates.

[Diversity and Physiological and Biochemical Properties of Heterotrophic Bacteria. Isolated from Lake Baikal Neuston.].

For heterotrophic microorganisms (44 strains) isolated-from the surface film of Lake Baikal, iden- tification was carried out and their. physiological and biochemical characteristics were determined. Com- pared to the water column, diversity of cultured heterotrophs was low, indicating formation of stable micro- bial communities at the air-water interphase interface.

[Resistance to Dehydratation of Extremophilic Bacteria from Antarctic Region and Hypersaline Reservoirs].

Purpose: To determine resistance to dehydratation of bacteria resistant to UV irradiation.

Methods: Objects of research - extremophilic bacteria (from Antarctic islands and hypersaline reservoirs of Israel and Crimea). Dehydratation of bacteria was carried out in sealed desiccator; the exposure without access of moisture was 5 weeks, temperature - 22 - 25 °C, humidity - 1 - 4 %.

PHYLOGENETIC ANALYSIS AND AUTECOLOGY OF SPORE-FORMING BACTERIA FROM HYPERSALINE ENVIRONMENTS.

Multi-resistant to extreme factors spore-forming bacteria of Bacillus genus are isolated from hypersaline environments of the Crimea (Ukraine) and the Dead Sea (Israel). Phylogenetic analysis showed distinction of dominating extremophilic culturable species in studied regions. In Crimean environments they are B.

Autecology of microorganisms of typical Ecuador biotopes.

34 strains of aerobic chemoorganotrophic microorganisms were isolated from 23 soil and plant samples selected from highland biotopes of Ecuador-Andes massif (Papallacta, 4020 m), ash at the foot of the volcano Tungurahua, mountainous jungle (La Favorita, 1600 m), as well as in humid tropic botanical garden (state Puyo, 950 m). In mountain jungle samples the high number of bacteria--10(5)-10(7) CFU/g of sample were represented by 2-5 morphotypes. In highland (4020 m) samples the bacterial counts made from 10(2) to 10(7) CFU/g of sample.

Ecophysiological properties of cultivable heterotrophic bacteria and yeasts dominating in phytocenoses of Galindez Island, maritime Antarctica.

Antarctic plants are stable specific microenvironments for microbial colonization that are still less explored. In this study, we investigated cultivable heterotrophic bacteria and yeasts dominating in plant samples collected from different terrestrial biotopes near Ukrainian Antarctic Base on Galindez Island, maritime Antarctica. Phylogenetic analysis revealed affiliation of the bacterial isolates to genera Pseudomonas, Stenotrophomonas, Brevundimonas, Sporosarcina, Dermacoccus, Microbacterium, Rothia and Frondihabitans, and the yeast isolates to genera Rhodosporidium, Cryptococcus, Leucosporidiella, Candida and Exophiala.

Hemostatic system in Wistar rats in different types of oxidative stress.

We studied parameters of hemostatic homeostasis in isolated and combined exposure to low-intensity γ-irradiation in a low dose, hyperbaric oxygenation, and antiorthostatic hypokinesia. Complex effects of the above stress factors are accompanied by a pronounced hypercoagulable shift with signs of thrombinemia against the background of depressed fibrinolysis, which indicates the risk of intravascular blood coagulation.

[Resistance of Antarctic microorganisms to UV radiation].

The paper deals with the samples of microorganisms isolated from biofilms of encrustation of 11 stationary points of monitoring on the vertical rock of biogeographical testing ground (island Galindez, Antarctic Region). They are presented by morphologically various forms of bacteria (n x 10(7) cells in 1g of sample), yeast (n x 10(5)) and fungi (n x 10(4)-10(6)). Threshold and lethal UV dozes for isolated monocultures of the Antarctic microorganisms are determined.

Modification of hemostatic status improves antitumor efficiency of photodynamic therapy.

Complex treatment with acetylsalicylic acid, heparin, and dexamethasone improves the efficiency of photodynamic therapy in rats with myosarcoma-I.

Effect of natural antiphospholipid antibodies on antithrombotic activity of vascular wall.

Natural latent human antibodies cross-reacting with DNA and cardiolipin, interact with human endothelial cells, decrease antiaggregation activity of rat aortic wall, and increase fibrinolytic activity of the wall of the inferior vena cava. It is assumed that natural antiphospholipid antibodies present in immunoglobulin preparations in a latent state modify antithrombogenic activity of the vascular wall and are a potential cause of antiphospholipid syndrome.

Screening for restriction endonucleases in methane-oxidizing bacteria.

51 methane-oxidizing bacteria strains such as Methylomonas methanica, M. rubra, Methylococcus capsulatus, M. thermophilus, M.