[Dimatif modification of the cytogenetic effect in the peripheral blood lymphocytes of children subjected to a constant low-intensity radiation exposure].

Primary results of cytogenetic monitoring of children living in regions of Ukraine contaminated after Chernobyl accident permit suggesting existence of radiation-induced modification of sensitivity of somatic cell chromosomes to mutagens. It may be supposed that interindividual and group difference in sensitivity of in vivo irradiated cells to additional induction of in vitro mutagen effect is explained not only by inherited properties, but also by preliminary irradiation.