Immunoblotting showing protein expression level with respect to MMP-2 and MMP-9.

<p>Western blot analysis showing the expression levels of MMP-2 and MMP-9 in control, CCI, and ipsilateral SCDH with intramuscular injection of Ad-MOCK or Ad-GDNF (A). The expression levels of MMP-2 and MMP-9 with respect to each tested group were shown as bar charts of relative ratio normalized with the expression level of β-actin (B–C). *P<0.05 compared with control group.