Figure 1: Formation of linear γ-H2AX foci tracks and γ-H2AX foci in rat PBLs and BMLs induced by radon exposure in vitro.

(A) Representative image showing linear γ-H2AX foci tracks and γ-H2AX foci in PBLs and BMLs induced by radon exposure in vitro. (B) The dose-response relationship for linear γ-H2AX foci tracks in PBLs and BMLs induced by in vitro radon exposure for 1–3 h. (C) The dose-response relationship for γ-H2AX foci in PBLs and BMLs induced by in vitro radon exposure for 1–3 h. Three thousand to eight thousand lymphocytes from each sample were used for linear γ-H2AX foci track and γ-H2AX foci quantitation. The data are presented as averages ± standard deviations of four-six rats. Green, γ-H2AX; blue, DNA stained with DAPI. 1000 × magnification; scale bar, 5 μm.