[Cytogenetic effects of alpha-irradiation due to incorporated 239Pu].

Intravenous injection of plutonium dioxide with 1-2 microns particle sizes in amount of 92.5, 46.3 and 23.

[A comparative evaluation of the efficacy of different methods for the decorporation of plutonium from the respiratory organs].

The behavior of plutonium in the organism and the mechanism of formation of absorbed doses in rats of different age were studied in a comparative aspect. The efficiency of CaDTPA depending on the animal's age and the usage was estimated. Under similar conditions, the efficiency of early single injections of CaDTPA to rat cubs was 2.

[Comparative study of hazards of energy plutonium and standard Pu-239 using non stochastic effects].

In experiment with rats it was found that the "energy" Pu is more toxic than standard 239Pu when entered endotracheally. The comparison was made by the non-stochastic effects. The toxicity in respiratory system and blood system was 1.

[State of cellular immunity effectors of the lung in inhalation exposure to low-transportable Pu-239].

The reduction of populations of lung cell immunity effectors as well as changes in their cytotoxic and phagocytic activity was observed in rats after inhalation exposure to polymeric 239Pu. Dose-response curves described as a function of absorbed dose of alpha-irradiation in lung.

[Effects of pentacin on subcellular distribution of Pu-239 nitrate in the lungs of rats].

The method of differential centrifugation has shown that 26% of 239Pu-nitrate injected intratracheally, is detected in cells in 3 h (24.4% of Pu is bound with subcellular organellae). In 24 h the nuclear fraction acquires a paramount importance in Pu binding.