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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Radiat Res. 2012 Dec 13;179(2):115–124. doi: 10.1667/RR3126.2

FIG. 1.

FIG. 1

The effects of very low doses of ionizing radiation on the induction of an adaptive response following an exposure to a 2 Gy challenge dose as evidenced by an elevation in cell survival compared to cells irradiated with only 2 Gy. Panel A: The adaptive response in RKO36 human colon carcinoma cells. Panel B: The adaptive response in wild-type transformed mouse embryo fibroblasts (MEF WT). P values above the bar compare treatment groups with the corresponding 2 Gy only control. Each experiment was performed two times and error bars represent the standard error of the mean (SEM).