Fig. 6From: Dendrimer-modified gelatin methacrylate hydrogels carrying adipose-derived stromal/stem cells promote cartilage regenerationA Immunohistochemical staining of Col-II in the four experimental groups. Scare bars: 100 μm. B Immunohistochemical staining of SOX9 in the four experimental groups. Scare bars: above, 100 μm; below, 20 μm. C Quantification of Col-II expression in the four experimental groups. D Quantification of SOX9 expression in the four experimental groups. Error bar: Mean ± SD, * represents p < 0.05Back to article page