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. 2002 Oct 15;8(5):797–803. doi: 10.3748/wjg.v8.i5.797

Figure 2.

Figure 2

DNA-PKcs activity of HepG2 cells. A: Cells were heated at 45.5 °C for 20 min and then received 40 Gy of X-rays (closed circles) or irradiated with 40 Gy of X-rays only (open circles). At various periods, DNA-PKcs activity in heated cells was inhibited, and kept at low level about 30%. The DNA-PKcs activity in both groups showed slight increase; B: After heated at 45.5 °C for 20 min, DNA-PKcs activity was still inhibited at various periods; C: DNA-PKcs activity was inhibited after exposure to heat at 45.5 °C for 5 min, even though the heat time was prolonged, DNA-PKcs activity levels still remained unchanged.