Zhou Pingkun, Sun Wenzhong, Liu Xueying, et al. THE ADAPTIVE RESPONSE OF MUTAGENESIS INDUCED BY LOW DOSE RADIATION IN MAMMALIAN CELLS[J]. Journal of Radiation Research and Radiation Processing, 1993,11(4):237-239,247.
Zhou Pingkun, Sun Wenzhong, Liu Xueying, et al. THE ADAPTIVE RESPONSE OF MUTAGENESIS INDUCED BY LOW DOSE RADIATION IN MAMMALIAN CELLS[J]. Journal of Radiation Research and Radiation Processing, 1993,11(4):237-239,247.DOI:
The effect of low dose γ-ray pre-exposure on the induction of hprt locus mutations by subsequent high dose challenge in mouse mammary carcinoma SR-1 cells was studied. Pre-exposure of SR-1 cells with 0.01 Gy low dose at 18 h or 24 h before high dose challenging, could significantly decrease the frequency of hprt mutation induced by 3 Gy irradiation. Pre-exposure of cells with 0.01 Gy per day, could result in the above effect at as early as 6 h after the accumulating dose attained 0.1 Gy, the effect lasted at least for 48 h, and the yield of mutations induced by 3 Gy was reduced by 30% to 40%.