Figure 4.

Levels of ROS in SH-SY5Y cells after being exposed to treatments with or without 2 mM FeCl₃. Cells were then treated with 1% DMSO, TC (0.46 μM), CM1 (10–40 μM), EGCG (10–40 μM), GTE (10, 20, and 40 mg/mL equivalent to 5.24, 10.48, and 20.96 μM EGCG, respectively), and combinations for 24 h. Data obtained from three independent duplicate experiments are expressed as mean ± SEM values. ^∗P < 0.05 when compared to the untreated cells without iron loading; ^#P < 0.05 when compared to the iron-loaded cells treated with 1% DMSO.