Figure 4 shows that the increase of ROS levels was significantly reduced by overnight preincubation with RSV (10 μM), CRC (10 μM), OLP (10 μg/mL), QRC (10 μM), GTE (12.5 μg/mL), LYC (5 μM), NAC (300 μM), ALA (10 μM), ALCAR (10 μM), CoQ (100 nM), or Sel (50 nM) (Figures 4(a)-4(b)), before NGF withdrawal. The effect of antioxidants on intracellular ROS levels was also evident by fluorescence microscopy analysis, as shown in Figures 4(c)-4(d). The gene discussed is NGF; the disease is colorectal carcinoma.