Fig. 3From: Human umbilical cord mesenchymal stem cell-derived exosomes promote microcirculation in aged diabetic mice by TGF-β1 signaling pathwayExosome therapy reduced the microvascular permeability of lower limb muscles in diabetic mice. A Typical fluorescence images of Evans blue dye in the PBS group after 28 days of treatment. B Typical flurescent images of Evans Blue dye in the exosme group after 28 days treatment. C Quantitative analysis of fluorescence intensity after 28 days of treatment. *p < 0.05 compared with PBS groupBack to article page