Fig. 3

Luxol fast blue staining for assessment of cavity size in control (a), sham (b), spinal cord injured (SCI) (c), vehicle-treated (d), human bone marrow-derived mesenchymal stem cell (BM-MSC) (e) and umbilical cord-derived mesenchymal stem cell (UC-MSC) (f) animals. Transplantation of human BM-MSCs and UC-MSCs resulted in significantly decreased cavity size (g). Original magnification in a–f, ×20. Data are expressed as means ± SEM (n = 3 in each group). *p < 0.001, versus SCI group