[Cytogenetic characteristics of H3 oxide induced myeloid leukemia in Wistar rats].

Frequency and spectrum of chromosomal aberrations were studied in hemopoietic cells of Wistar rats myeloid leukaemia induced by the prolonged exposure to tritium oxide. Differences in quantitative and structural damages of chromosomes were revealed by the cytogenetic assessment of eighteen rats with acute myeloid leukaemia (AML) and six rats with chronic myeloid leukaemia (CML). The most characteristic chromosomal aberrations for AML appeared to be rearrangements in chromosomes 1-3. In CML translocations by one of chromosomes 15-20 coupled with defects in the groups of chromosomes 5-10 seemed to be nonrandom.