Interaction of Salmonella enteritidis and Salmonella typhimurium in Microbial Association Formed by Them in In Vitro Experiment.

We studied the interaction of Salmonella enteritidis and Salmonella typhimurium in the microbial association formed by these microorganisms in vitro. It was found that S. typhimurium in microbial association in LB-broth inhibited reproduction of S. enteritidis, which attested to its higher competitiveness. The concentration of S. typhimurium in the medium in 6 h reached 92-93% of the total number of bacteria. Parallel growth of the populations of S. enteritidis and S. typhimurium was observed only during the first hour, but later, S. typhimurium always exceeded S. enteritidis by the growth dynamics. The competitive advantage of S. typhimurium was observed both in the absence and presence of 60-MDa virulence plasmid.

[FORMATION OF POPULATION MORBIDITY WITH SALMONELLOSIS CAUSED BY SALMONELLA ENTERITIDIS IN REGIONS WITH INCOMPLETE SUPPLY OF LOCAL POULTRY PRODUCTS].

AIM: Study plasmid characteristics of S. enteritidis strains in patients and features of epidemi- ology of the infection in regions with incomplete supply of population with local poultry produc- tion. MATERIALS AND METHODS: Plasmid analysis of microbe strains isolated from 382 patients and 8 samples of products was carried out, and significance of plasmid types in population morbidity was evaluated. Identification of salmonella was carried out by conventional methods, plasmid 41 specter - by Kado C.I. and Liu S.T (1981) method. RESULTS: 98.4% of strains contained virulence plasmid p38, and 80.1% of strains also had small plasmids. Sakhalin strains were divided into 16 plasmid types (D=0.794), and strains from Jewish AO - 10 (D=0.834). Uniformity of strains in patients during infection outbreaks and in transmission factors was detected. CONCLUSION: Features of salmonellosis in. the studied subjects of Russian Federation are determined by higher risk of import of products containing salmonella. Monitoring based on plasmid analysis is an effective base for epidemiologic control.

Defining the parameters of a cantilever tip AFM by reference structure.

A method of measurement and control of atomic force microscope (AFM) probe parameters is offered. The AFM real cantilever parameters are defined.

[The hemodynamic action of effective doses of sustak in patients with stenocardia of effort]. / Gemodinamicheskoe deistvie éffektivnykh doz sustaka u bol'nykh stenokardiei napriazheniia.

Forty patients with associated coronary disease and angina pectoris of effort were examined for the action on the central hemodynamics and circulation of the effective doses of sustac chosen by means of paired bicycle ergometries. Sustac produced a decrease of the cardiac index, systolic pressure in the pulmonary artery and in the aorta, reduction of the blood flow time along pulmonary circulation veins, aorta Sustac was discovered to have an antianginal effect under the conditions of pre- and afterload lowering.