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Biomedical subjects

I M Iakovleva

Publications and source records attributed to I M Iakovleva.

24 records · Page 2Linked to original sources

[Evaluation of the reactogenicity and immunogenic potency of combined vaccine "Bubo-Kok" in the immunization of children against diphtheria, tetanus, pertussis and viral hepatitis B].

Combined vaccine "Bubo-Kok" is characterized by safety and high immunological activity. The number of postvaccinal reactions in children aged 1 and 2 years, immunized with vaccine "Bubo-Kok", was not statistically different from those in groups of children immunized with adsorbed DPT vaccine, as well with such vaccine in combination with vaccine against hepatitis B. After the completion of the primary course of immunization 100% of children had protective antibody titers against diphtheria, tetanus and hepatitis B. Antibody titers against pertussis, equal to or exceeding protective titers, were found in more than 70% of immunized children. The immunogenic potency of vaccine "Bubo-Kok" with respect to all its components was not inferior to that of adsorbed DPT vaccine and vaccine against hepatitis B, when introduced simultaneously in different areas of the body. Vaccine "Bubo-Kok" successfully passed state trials and was recommended for registration.

Antibodies, Bacterial↗

[Effect of native vitamin A metabolites and their 4-oxo derivatives on formation of specific cytolytic T lymphocytes].

Immunomodulating effect of some structural derivatives of retinoic acid (RA) on formation of specific cytolytic T lymphocytes (T killers) was studied in mixed cell culture of spleen lymphocytes from allogenic mice. Native vitamin A metabolites (RA, 13-cis-RA) and the structure-like substances (C15-C20-retinoids and others) at 10(-6) = 10(-7) M concentrations increased 2-2.5-fold the formation of T killers in vitro after stimulation of the lymphocytes by suboptimal doses of allogenic X-ray irradiated cells, the lymphocyte proliferation was inhibited in the mixed culture at 10(-5) M and higher concentrations of the substances. Optimal concentrations of retinoids did not increase the 3H-thymidine incorporation into DNA of lymphocytes stimulated by alloantigens or mutagens. The data obtained suggest that the previously found antitumoral efficiency of the compounds studied may be due to stimulation of specific cellular immunity.

Animals↗

[Russian recombinant vaccine against hepatitis B (results of controlled trials)].

Two yeast recombinant vaccines were compared: the Russian hepatitis B Combiotech vaccine in a dose of 20 mg and the Recombivax-HB vaccine in a dose of 10 mg manufactured in the USA (Merk, Sharp and Dohme Ltd.). Both agents were found safe and low reactogenic. After a course of 3 vaccinations with the Russian vaccine 92.5 to 97.5% subjects vaccinated after the 0-1-2 months and 0-1-6 months protocols had high levels of specific antibodies. In the group vaccinated with the American vaccine, antibodies to HBsAg were found in the sera of 95 to 100% subjects. These results demonstrate high immunological activity of both Russian and American vaccines.

Adult↗