Fig. 4

Combined therapy promoted the recovery of motor function and neurogenesis in SCI mice. A Mice with SCI and NPs transplantation exposed to ultrasound, namely, the US + NPs group. B Mouse motor functional recovery using BMS scores for statistical analysis. C Electrophysiological analysis of the mice with different treatments after SCI. D Amplitude of MEPs. E Representative immunofluorescence staining of spinal cord sections eight weeks after surgery. Cell nuclei were stained with DAPI (blue). Tuj1 (green) was used as a neuron marker. F Amplified images of the lesion site in each group. G Quantification of Tuj1 positive neural cells in lesion site