The Cotransplantation of Olfactory Ensheathing Cells with Bone Marrow Mesenchymal Stem Cells Exerts Antiapoptotic Effects in Adult Rats after Spinal Cord Injury

Figure 4

H&E staining of spinal cord tissue in each group. (A) 14 days after transplantation; (B) 28 days after transplantation: (a₁, a₂) control group; (b₁, b₂) sham group; (c₁, c₂) OECs treated group; (d₁, d₂) BMSCs treated group; (e₁, e₂) cotransplant treated group.