[Chromosome aberrations and sister chromatid exchanges in a human lymphocyte culture exposed to diethylstilbestrol dipropionate].

Frequency of chromosome aberrations and sister chromatid exchanges (SCE) was studied in human lymphocyte culture treated with the synthetic nonsteroidal estrogen diethylstilbestrol-dipropionate in doses of 1.3 . 10(-7) M, 1.3 . 10(-6) M and 1.3 . 10(-5) M. Doses of 1.3 . 10(-6) M and 1.3 . 10(-5) M are shown to induce a significant increase in the chromosome aberration level mostly due to a rise in the number of polyploid cells. The same doses increase the frequency of SCE.