Figure 3. The microglial NADPH oxidase inhibitor apocynin protects against dopaminergic neurons against combined paraquat-iron neurotoxicity in vitro.
(A) Paraquat-stimulated release of superoxide in microglia. (B) TH-positive neuron counts in primary mesencephalic neuron-glia cultures. Mean ± S.E.M., n = 4-5. #, p < 0.01, significantly from control plus vehicle group;*, p < 0.05, significantly from paraquat plus vehicle group; @, p < 0.001, significantly from paraquat plus vehicle group; ˆ, p < 0.001, significantly from paraquat plus iron plus vehicle group.