[Level of spontaneous and radiation-induced cytogenetic damage in blood lymphocytes of children depending on age and life style].

On blood lymphocytes the frequency of cell with micronucleus was examined in different population of children. The groups with different lifestyle living in different ecological situation, and their reaction to the radiation exposure was investigated. It was shown that when the increased level of spontaneous cells with micronucleus was observed the increased radiosensitivity of the cells was found. The connection between the increased spontaneous level of the damaged cells with the enhanced sensitivity to irradiation in adaptive doses are discussed.