Expression levels of P38AMPK/Smad2 pathway proteins in spinal cord during treatment of spinal injury. A: RT-qPCR to assay apoptosis-related gene and P38AMPK/Smad2 pathway gene. B-C: Western blot to assay apoptosis-related and P38AMPK/Smad2 pathway proteins. For Abbreviations, see Fig. 1. * P < 0.05, ** P < 0.01 vs. the control, # P < 0.05, ## P < 0.01 vs. the model.