Fig. 5.

pATM foci in fibroblasts after single- and double-helical CT scan exposure. a Kinetics of pATM foci in fibroblasts after a single-helical head CT scan, or (b) a double-helical head CT scan at the indicated times after exposure (t0 = non-irradiated). Each data represents the mean ± SEM of 3 independent experiments. The asterisks shown at 10 min post-irradiation times correspond to a statistically significant difference between the cell line and the radioresistant 200CLB controls. CT Computed tomography, γH2AX Phosphorylated forms of the H2AX histone variant, pATM Phosphorylated forms of the ATM protein, SEM Standard error of the mean