Fig. 1

a and b Representative immunoblotting results and (c) semi-quantitative analysis of CB2R protein level at different posttraumatic intervals. + P < 0.05, ++ P < 0.01, JWH133 versus vehicle; * P < 0.05, ** P < 0.01, GP1a versus vehicle; # P < 0.05, ## P < 0.01, AM630 versus vehicle