Figure 7. Effect of TSG on 6-OHDA-induced elevation of protein-bound 3-NT in PC12 cells.

PC12 cells were exposed to TSG (10, 20 or 50 µM) for 24 h before 75 µM 6-OHDA was added to the medium for an additional 24 h, and then 3-NT was measured. Data are expressed as percentage of untreated control cells ± standard deviation (n = 5). **P<0.01 versus untreated control cells; # P<0.05, # #P<0.01 versus 6-OHDA-treated cells.