N. P. Borodina

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Extract from the brain of young mice produced weak cytoproliferative effect on cultured glial cells, while brain extract from old mice 3–4- and 30–60-fold stimulated glial proliferation in primary and passaged cell cultures, respectively.
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Virus reproduction and activation were studied in human cells transformed with human polyoma virus. At the stage of spontaneous viral production, such methods of activation as somatic hybridization and DNA transfection were successful. Special methods of viral activation (treatment with mitomycin C and DEAE--dextran, and subsequent homologous DNA(More)
The experiments with AKR mice, that are carriers of the T-cell leukemia virus showed their higher radiosensitivity as compared to (CBA x C57Bl)F1 mice in respect of survival and hemopoietic status. The regular patterns observed are presumed to result from lower ability of AKR mice to repair radiation damage and provide resistance to infections.
Human papovavirus isolated from human malignant paraganglioma was found to have pathologic relevance to golden hamsters of varying age inducing sarcomas in adults, when given intracerebrally, and lesions of central nervous system in newborns inoculated subcutaneously. T-antigen, immunologically related to that of SV40 was detected in tumor cells. Infectious(More)
The influence of microorganisms on the course of tumor processes in laboratory animals was studied. The study revealed that the inoculation of Bordetella pertussis decreased survival time both in mice with implanted mastocytoma cells P-815 and in Syrian golden hamsters with implanted transformed hamster fibroblastomas. The smallpox vaccine virus was found(More)