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(A, B, C) The western blot assay of TGF-β1 and p-Smad2 in injured spinal cord at 1d after BMSCs transplantation. (D, E, F, G) The western blot assay of TGF-β1 and p-Smad2 in injured spinal cord at 3 days after BMSCs transplantation. (H, I, J, K) The western blot assay of TGF-β1 and p-Smad2 in injured spinal cord at 7days after BMSCs transplantation. **P<0.01, *P<0.05.
