Paraquat and MPTP induce neurodegeneration and alteration in the expression profile of microRNAs: the role of transcription factor Nrf2

HE staining in the SN of Nrf2 (+/+) and Nrf2 (？/？) mice after treatment with PQ, MPTP and saline for neuropathological changes. Each microgram (100×) contains a view of SN from each group (n？=？3). Representative damaged cells were shown in bottom left corner of the panel (400×