Figure 5.
Oxidative stress contributes to rotenone-induced dopamine neuron death. (A) 5 nM rotenone for 12 h increases ROS production in TH+ neurons, which is prevented by cotreatment with 10 nM taxol. (B) Cotreatment with 0.5 mM N-acetylcysteine (NAC), an antioxidant, reduces 24-h 5-nM rotenone–induced TH+ neuron death. Data are means ± SEM. n = 3; *, P < 0.05; **, P < 0.01; ***, P < 0.001.