T. A. Chulok

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The results of the correction of disturbances in intestinal microflora in elderly patients with the use of bifidumbacterin in the form of powder or suppositories are presented. The effectiveness of the rectal administration of bifidumbacterin (by microinjections through an enema or in suppositories) is shown in comparison with the oral administration of the(More)
A method for measuring urease activity in biopsy specimens and Helicobacter pylori cultures from these specimens is proposed. The method is based on measurement (with a portable pH-meter) of the rate of pH changes in a reaction mixture consisting of buffer, substrate (urea), and biopsy specimen or bacterial cells. This method revealed that urease activity(More)
The method for the determination of bacterial antibodies to group B meningococci was worked out. The method was used for the determination of antibodies to group B meningococcal vaccine produced in the USSR. The dynamic study of antibodies to protein, polysaccharide and lipopolysaccharide antigens of group B meningococci was made by the method of the enzyme(More)
The anti-Escherichia activity of 188 serum samples obtained from nonimmunized blood donors and 157 batches of the preparation of commercial normal human immunoglobulin were evaluated in the passive hemagglutination test with diagnostica containing E. coli antigens (serovars O2, O14, O26) and Kunin antigen, as well as Re-glycolipid Salmonella minnesota(More)
The toxicity, immunogenic properties and protective activity of the live culture of E. coli M17 and antigenic preparations obtained from cell suspensions of this strain have been studied under experimental conditions. As revealed in experiments on mice, E. coli M17 live culture has low virulence, moderate toxicity and provides the protection of immunized(More)
The antigen-binding activity of commercial preparations of immunoglobulin with different molecular composition was studied in the enzyme immunoassay with Escherichia coli lipopolysaccharide and serogroup B Neisseria meningitidis protein antigen. Immunoglobulin preparations for intramuscular injection were found to possess higher specific antigen-binding(More)
To evaluate the specific activity of house-dust allergen, the passive hemagglutination inhibition test was used. Nine commercial batches of house-dust allergen were studied by means of this test. The results of the determination of the activity of house-dust allergen in the passive hemagglutination inhibition test, the skin tests and the indirect mast-cell(More)