RESULTS OF CYTOGENETIC INVESTIGATION OF C HERNOBYL ACCIDENT LIQUIDATION PARTICIPANTS AFTER 5 YEARS

Results of the cytogenetic investigation on the Chernobyl accident dec ontamination participants, 5 years after the accident, have been discl osed. Cytogenetic analysis was performed on circulating blood lymphocy tes, using a standard cultivation technique. Differences were detected between control group and decontamination participants on frequency o f aberrant cells and aberrations of chromosome type in peripheral bloo d lymphocytes. Maximal cytogenetic effect on this data was defected in persons, who had worked between May and August 1986. On the base of c ytogenetic investigation data, the authors proposed to form high-risk groups, including oncologic risk groups, which need a profound dynamic investigation.