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Figure 2. γH2AX foci in control mammosphere cells (A); radiation-induced γH2AX foci in mammosphere cells 1 h after γ-irradiation at a dose of 2 Gy (B); and radiation-induced γH2AX foci in mammosphere cells 1 h after γ,n-irradiation at a dose of 1 Gy (C). Confocal microscopy data are shown. Nuclei were stained with DAPI (blue) and γH2AX foci (green) were detected. The number of γH2AX foci per cell nucleus is indicated. Experiments were repeated five times.
