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  • Title: [Frequency of mutagen-induced sister chromatid exchanges in the course of 3 cell cycles].
    Author: Chebotarev AN, Selezneva TG.
    Journal: Tsitol Genet; 1982; 16(4):21-5. PubMed ID: 6814026.
    Abstract:
    The induction of SCE by fotrine (0.125 and 0.250 microgram/ml) and thiophosphamide (5 micrograms/ml) during the first three cell cycles was studied in the Chinese hamster cells. No increase in the SCE number was observed after treatment with thiophosphamide and fotrine at the G2 stage (the first stage from the moment of fixation) as compared with the control variants. The maximal sensitivity of the cells to the SCE induction by the mutagens is marked at the G1 stage of the first cell cycle before the moment of fixation. The level of SCE remains approximately the same in the second cell cycle before the moment of fixation (20-32 h) and decreased down to the control level at the G1 stage of the third cell cycle (48-52 h).
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