Figure 1.

Effect of single treatment with AuNPs or X-ray irradiation on HSC-3 cell number. (A) The total number of HSC-3 cells was not affected by addition of 5-nm AuNPs at any concentration; (B) but was significantly decreased following 4 and 8 Gy X-ray irradiation, relative to control cells. The cell number was counted in five randomly selected independent microscopy images. The data are representative of three independent experiments and presented as the means ± standard deviation. Y-axis values indicate percentage with the control as 100%. ***P<0.001 vs. Control; ^##P<0.01 and ^###P<0.001 vs. 2 Gy; ^$$$P<0.001 vs. 4 Gy. AuNPs, gold nanoparticles.