PubMed Health⌕ Search

Biomedical subjects

N S Shvydko

Publications and source records attributed to N S Shvydko.

At least 19 recordsLinked to original sources
PubMed1991

[Dosage of irradiation of the population in the Bryansk region with plutonium deposited in the soil after the Chernobyl AES accident].

Proceeding from the data on 238Pu, 239Pu, 240Pu concentrations in the soil in different areas of the Bryansk Region, exposed to radioactive contamination after the Chernobyl accident, radiation dose exposures of residents as well as agricultural workers were assessed. Criteria of the ecological and radiation-hygienic standardization were used for calculation of values of dose factors, binding the alimentary and inhalation components of an irradiation dose with characteristics of Pu deposition in the soil. Inhalation of soil particles accounted for approximately 90% of a total radiation dose of the "soil" Pu component, and the alimentary component-for approximately 10% (of this, 99% were attributed to plant products). The authors proposed prognostic assessment of an expected effective equivalent dose for a period of 70 years for people, residing in these areas (0.08-0.45 cSi for the population and 0.6-3.2 cSi for mechanics).

Accidents↗
PubMed1990

[239Pu metabolism after its intratracheal administration].

The paper is concerned with the results of distribution and kinetics of metabolism of 239Pu-citrate in the respiratory tracts. Time-periods of the accumulation and excretion of this radionuclide from various tissue systems were defined. Data on the time course of 239Pu resorption from the lungs to organs and tissues, first of all to the blood, especially at the early stage of metabolism (up to 1-3 days), are the basis for the optimization of a method of osseous tissue protection against the radionuclide by using competitive action of iron preparations.

Animals↗
PubMed1985

[Modification of 239Pu metabolism in the blood in various methods of iron preparation administration in the body].

A study was made of the intravenous, intraperitoneal and oral routes of iron administration. It was shown that the oral route of the entry of appropriate amounts of iron in the body made it possible to saturate the transferrin spare capacity and hence to influence 239Pu metabolism in the blood. The results obtained can be employed for improving indirect dosimetry methods of 239Pu in the body using chelates.

Administration, Oral↗