Figure 5

The effects of NAC on intracellular ROS production and HpD accumulation. (a) The ESR signal indicated intracellular ROS production. (b) After hyperthermia treatment with or without NAC, cells were exposed to culture medium containing 20 μM of HpD for 6 h. Intracellular fluorescence intensity was measured on a microplate reader. Data are expressed as means ± SD (n = 4). *p < 0.05, **p < 0.01.