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 4. PCA raised the expression levels of PLK2, p-GSK3β and nuclear Nrf2 in midbrain. (A) Representative western blot bands of PLK2, p-GSK3β, GSK3β, Nrf2, tubulin and Histone H3 in each group. (BD) Quantification of PLK2, p-GSK3β/GSK3β and nuclear Nrf2 levels in midbrain tissues. Data were expressed as mean ± S.D., n = 6; *P< 0.01 vs. control group, #P< 0.05 vs. MPTP group.