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Figure 2: The cavernous endothelial cell and pericyte numbers are improved by combination therapy with SVF and Ad-COMP-Ang1 gene in STZ-induced diabetic mice. (a) CD31 (green) and PDGFR-β (red) staining in cavernous tissue from age-matched control mice (C) group and STZ-induced diabetic mice stimulated at 4 weeks after intracavernous injection of PBS (P, 20 μl), ad-LacZ (L, 2 × 108 particles per 20 μl), SVF (S, 1 × 105 cells per 20 μl), Ad-COMP-Ang1 (CA, 2 × 108 particles per 20 μl), or combination (S + CA). Nuclei were labeled with DAPI (blue). Scale bars = 100 μm. Quantification of (b) cavernous endothelial cell and (c) pericyte numbers by ImageJ. Each bar depicts the mean values ± standard deviations from n = 5 animals per group. *P < 0.001, P or L versus C group. #P < 0.05, S or CA versus P or L groups. †P < 0.05, S + CA versus S or CA groups. The P values were determined by one-way ANOVA. Ad-COMP-Ang1: adenovirus-mediated cartilage oligomeric matrix angiopoietin-1; DAPI: 4',6-diamidino-2-phenylindole; DM: diabetes mellitus; PBS: phosphate-buffered saline; STZ: streptozotocin; SVF: stromal vascular fraction; PDGFR-β: platelet-derived growth factor receptor-beta. |
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