Fig. 4
Representative micrographs of SH-SY5Y cultures treated with a nothing (cell culture medium only), b vehicle (DMSO), c DRC (1 μM), d PM (5 μM), or e DPM (1 μM). f Histogram of intracellular ROS levels after exposure to the various formulations. Scale bar 100 µm **P < 0.01 (n = 3)