Figure 7.

Protandim promotes differentiation of primary rat OPCs under oxidative stress. After 2 day de-differentiation of OLs with growth factors bFGF-2 and PDGF-AA, primary rat OPCs were incubated with 30 µg/mL Protandim or vehicle control (EtOH) for 24 h. After removal of medium, cells were subsequently exposed to either control medium or medium with 10 µM tert-butyl hydrogen peroxide (tbH₂O₂) for 5 days. MBP and Olig2 expression were assayed by immunocytochemistry. Data are presented as percentage of control and expressed as the mean ± SEM of 3 independent experiments. Statistics reflect student’s t-test, one-tailed; * p < 0.05.