Figure 6From: Multiple injections of human umbilical cord-derived mesenchymal stromal cells through the tail vein improve microcirculation and the microenvironment in a rat model of radiation myelopathy UC-MSC administration increased the endothelial cell density (n = 30) and microvessel density (n = 30) in the spinal cord at 180 days post-irradiation (* P < 0.05, â–² P < 0.01). Error bars represent the S.E.M.Back to article page