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Effect of Ionizing Radiation on the Distribution of Selenium in Rats

Investigations were carried out on 350 Wistar rats irradiated with doses of 52, 103, 155 and 205 mC. One or five days after irradiation the rats were given intragastrically dose of Na2 75SeO3 (0.2 cm3, 3.34 kBq). The radioactivity of organs and tissues at 3, 6 h and 1, 2, 4, 8, 14 days after isotope administration indicated that irradiated rats did not differ significantly from not irradiated rats in distribution of radioselenium. Moreover the differences were transient and did not correlate with the exposure doses.