Fig. 2From: Tanshinone IIA promotes the differentiation of bone marrow mesenchymal stem cells into neuronal-like cells in a spinal cord injury modelElectron microscopy of neurons and the myelin sheath at the epicenter of healthy and injured spinal cord (HSC and SCI). A, C The normal (A) and injured (C) neurons in the spinal cord; there was perineuronal edema (arrow). B, D The normal (B) and injured (D) myelin sheath, there was edema (arrows). Scale bar, 2 μmBack to article page