[Chromosome aberrations in different tissues of the murine rodents and amphibians from radionuclide-contaminated regions of Belarus].

Cytogenetic investigations of amphibian and rodent populations from the contaminated by radionuclides regions of Belarus was conducted. A significant increase in the levels of cytogenetic anomalies in bone marrow cells and intestinal epithelium of amphibians and rodents, the levels of alveolar macrophages of rodents, and micronuclei in peripheral blood erythrocytes of amphibians was revealed. Presence of chromosome type aberrations indicates that radiation as a mutagenic factor was involved. No strict relationship between the levels of contamination of the area and levels of cytogenetic anomalies was found.