N. B. Pushkareva

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After intraperitoneal injection of 100 or 198 mg/kg of human serum apotransferrin (apo TF) to mice 1 day before acute exposure to 6 Gy of gamma-radiation, the number of endogenous CFU in spleen (CFUs) increased 2.5 or 2.6 times respectively. At a dose fo 10 mg/kg of the protein only an increasing tendency was found, whereas a dose of 1 mg/kg was(More)
It was shown that introduction of cadmium chloride (0.75 mg/kg Cd2+) in combination with gamma irradiation (8.5 Gy) of mice increases the level of metallothioneines (MTs) in the bone marrow and liver of mice. The maximum effect was observed in 24-30 h after the performance. Similarly, irradiation with the doses of 3 to 10 Gy resulted in an increase in the(More)
It was shown, that rat hepatic Zn-metallothionein (Zn-MT) depressed in vitro Fe3+/ADP-induced lipid peroxidation (LP) in rat bone marrow cells and increased its viability after pro-oxidant's influences. ZnCl2 and its combination with cysteine also decreased LP products level, but less and did not alter viability. On 9-th day after gamma-irradiation (6 Gy)(More)
Ionizing radiation, glucocorticosteroids and chemical inducers of differentiation (CID) are cytotoxic to thymocytes, and induce internucleosomal DNA fragmentation. Tissue cAMP levels in thymi of irradiated mice were significantly elevated as early as 30 min post-irradiation. In contrast, cAMP content in the liver was not changed significantly up to 1 h(More)
It is shown that zinc-metallothionein from rat liver increases 1.5-fold thein vitro incorporation of3H-thymidine in murine bone marrow cells. The same concentrations of zinc chloride and a mixture imitating zinc-metallothionein (zinc, cysteine, and albumin) inhibit DNA synthesis. In mice receiving an intraperitoneal injection of zinc-metallothionein 10–15(More)
It has been shown that chalone-containing substance obtained from the rat spleen decreased the mitotic activity of mouse thymocytes upon its intraperitoneal administration to animals. The maximum inhibition was observed 45 min after the injection. Thus, the substance examined has the property of G2 chalone.
Zn-MT and less apo MT (4-100 mkg/ml) in vitro stimulated the [3H]-thymidine incorporation in mice bone marrow cells, but ZnCl2, its combination with cysteine and mixture (ZnCl2 + cystine + albumin) inhibited DNA synthesis. In protected with Zn-MT (1-4 mg/kg) 10-15 min before irradiation (6 Gy) mice on 9th day after influencing the increasing of DNA(More)
A study was made of seven radioprotective agents of different chemical classes (sulfur-containing, indolylalkylamines, and imidazol, urea and pyridasine derivatives) and also of their six structural analogs without radioprotective properties on the content of cyclic nucleotides in blood plasma and on the postirradiation survival of mice. There was a(More)
A comparative study of single-stranded DNA-binding proteins (SSB-proteins) isolated from chromatin and the extrachromatin fraction of Ehrlich ascites tumour cells was carried out. No differences were found either in SDS-gel electrophoretic mobility or in the single-stranded DNA-binding capacity and stimulation of the replicative synthesis of DNA. However,(More)