1800 MHz RF-EMF induces cell type-dependent DSBs as evaluated by the γH2AX foci formation assay.

<p>(A) Representative images of γH2AX immunofluorescent staining of CHL, astrocytes, FL, HUVEC, HLEC, and HSF exposed to radiation at 3.0 W/kg for either 1 h or 24 h. Red dots indicate γH2AX foci; nuclei are stained blue with DAPI. Scale bar, 10 µm. (B) Histograms showing the average numbers of γH2AX foci per cell by scoring ∼200 cells per sample. Values are mean ± SEM of at least 4 independent experiments. *<i>p</i><0.05 compared with the sham-exposed sample.