Fig. 6From: Human acellular amniotic membrane incorporating exosomes from adipose-derived mesenchymal stem cells promotes diabetic wound healingImmunohistochemical analysis of angiogenesis. The hAAM-Exos group showed the highest vessel numbers and densities. a Representative images of immunohistochemical staining of CD31 in each group at day 7 and day 14. Scale bar = 50 μm. b Quantitative analysis of the number of vessels per field in each group at day 7 and day 14. **P < 0.01, *P < 0.05Back to article page