Figure 5From: Continuous and low-energy 125I seed irradiation changes DNA methyltransferases expression patterns and inhibits pancreatic cancer tumor growth125I irradiation induced apoptosis in pancreatic cancer. The dark brown or brownish yellow spots represented the apoptotic cells detected by TUNEL staining in the 0 Gy (A), 2 Gy (B), and 4 Gy (C) groups. The average number of apoptotic cells per 200 objective fields were plotted (D). *P < 0.05 compared with the 0 Gy (Control) group. #P < 0.05 compared with the 2 Gy group.Back to article page