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BBB scores at different time points. Data are presented as the mean ± standard deviation and P<0.05 was considered statistically significant. *P<0.05 BMSC-Sna + NRG group, vs. all other groups. BBB, Basso, Beattie, and Bresnahan; BMSC, bone marrow mesenchymal stem cells; Sna, Snail overexpression plasmid; NRG, neuregulin-1; NC, negative control.
