Oleanolic Acid Enhances the Beneficial Effects of Preconditioning on PC12 Cells

Figure 1

Effects of 6-OHDA on (a) cell viability of PC12 cells as shown by the MTT assay and (b) apoptotic ratio of PC12 cells as shown by the Annexin V apoptosis test 24 hours after cell treatment. Four concentrations of 6-OHDA were used: 50 μM, 150 μM, 300 μM, and 600 μM. 0 μM versus 150, 300, and 600 μM, .

(a)

(b)