Research Paper Volume 11, Issue 21 pp 9424—9441

Neuroprotective effects of protocatechuic aldehyde through PLK2/p-GSK3β/Nrf2 signaling pathway in both in vivo and in vitro models of Parkinson's disease

Figure 7. PCA increased PLK2- and Nrf2-positive expression in MPP+-incubated SH-SY5Y cells. (A) Representative immunofluorescent staining for PLK2 (bright red) and DAPI (blue). (B) Representative immunofluorescent pictures for Nrf2 (bright red) and DAPI (blue). Scale bar, 20 μm.