[Esophageal cyst of the mediastinum in combination with congenital defect of the pericardium].
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Biomedical subjects
Publications and source records attributed to I A Kiseleva.
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On a model of intraperitoneal infection of albino mice the authors demonstrated a protective action of the fraction enriched with IgM and of gamma-globulin isolated from the normal human blood serum, against E. coli O111. The intensity of the protective action depended on the method, duration of administration of the preparation and also on the infective dose. Protective properties of the fraction enriched with IgM were more pronounced in comparison with the gamma-globulin preparation.
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Ferrovir (trivalent iron in complex with native sturgeon milt DNA) is nontoxic, its 50% inhibiting concentration (IC50) is at least 4000 micrograms/ml, 90% effective concentration (EC90) towards HIV-1 is 800 micrograms/ml. These effects do not depend on the cell culture or individual biological characteristics and subtypes of 7 strains of HIV-1 used in our study. The chemotherapeutic index of the drug is more than 20. Combined therapy with ferrovir and retrovir had an additive antiviral effect. Ferrovir reduced the titer of human CMV in fibroblast culture by 1-2 Ig TCD50. Ferrovir protected mice after intracerebral inoculation with lethal herpes simplex virus (type 1) (survival 33.7%, protection 27.1%, which is close to the reference group treated with zovirax). These facts evidence antiviral activity of ferrovir towards RNA and DNA viruses and prompt further study of this drug with the aim of its clinical application.
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Cell systems infected with 63 strains of types 1 and 2 HIV virus (HIV-1 and HIV-2) were examined under electron microscope. HIV virions were most frequently detected near the cell membrane or budding from it. In the cytoplasm HIV occurred only in vacuole-like formations. Accumulations of mature virions were seen in the cell-to-cell space. Mature particles of HIV-1 and HIV-2 differed by their morphology from oncoviral C particles and were similar rater to the Visna/Medi type Lentiviruses. Morphological analysis of HIV strains isolated in Russia demonstrated their similarity to be foreign HIV strains.