Department of Radiobiology and Radioecology, Institute for Nuclear Physics of NAS of Ukraine, 47 Nayky prospect, Kyiv, 03680, Ukraine.
J Environ Radioact. 2020 Jan;211:105758. doi: 10.1016/j.jenvrad.2018.06.023. Epub 2018 Jul 20.
Radiobiological investigations of natural populations of Myodes glareolus (bank vole) from the Chornobyl Exclusion Zone, namely within a highly radioactive site of the Red Forest were carried out. The complex of hematological and cytogenetic parameters of the bank voles inhabiting the contaminated site was studied before the site was flooded, in 2012, and after it drained, in 2015. A significant increase in micronucleated polychromatic erythrocytes, alterations in bone marrow and peripheral blood cell counts were observed in the population of 2015 in comparison with the group of 2012 and animals from the reference site. It is supposed that prolonged flooding has affected the features of radionuclide contamination of the experimental site as well as population characteristics and resulted in the increase of the genotoxic effects observed in the renewed population of bank voles exposed to chronic radiation.
对切尔诺贝利隔离区(即红森林的高辐射区)天然田鼠种群的放射生物学研究进行了调查。2012 年该地区被洪水淹没之前和 2015 年洪水退去之后,研究了居住在受污染地区的田鼠的血液学和细胞遗传学参数的综合变化。与 2012 年组和参考地点的动物相比,2015 年种群中出现了明显的多染性红细胞微核增加,骨髓和外周血细胞计数发生改变。据推测,长期洪水影响了实验地点的放射性核素污染特征以及种群特征,并导致在暴露于慢性辐射的更新田鼠种群中观察到的遗传毒性作用增加。