Fig. 3

The mRNA and protein expression of PDGF-BB and ERK1/2 in vitro. A Western blotting results of PDGF-BB and phosphorylated ERK1/2 (p-ERK1/2) in the Normal, Injury, and PDGF-BBi groups. B Comparison of the relative protein expression levels of PDGF-BB and p-ERK1/2 in the Normal, Injury, and PDGF-BBi groups. C Comparison of the relative mRNA expression levels 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