Fig. 2

PDGF-BB and ERK1/2 promoted the proliferation of injured astrocytes in vitro. A Immunohistochemical staining of PDGF-BB and ERK1/2 at 24 h and 48 h after wound-healing assay (100× , Scale bars = 100 µm). B Proliferative ability of injured astrocytes tested by MTT assay. C, D Comparison of the mean OD values of PDGF-BB and ERK1/2 in the Normal, Injury, and PDGF-BBi groups. ^*P < 0.05, vs. Normal group; ^#P < 0.05, vs. Injury group