Fig. 8From: Collagen type II solution extracted from supercritical carbon dioxide decellularized porcine cartilage: regenerative efficacy on post-traumatic osteoarthritis modelEffects of Col II solution on cartilage SOX9 expression in MNX-induced rat OA. The immunostaining of SOX‐9 expression (a), the quantification optical density of SOX‐9 expression (b). Data are expressed as mean ± SD. *p < 0.05 compared with N group; #p < 0.05 compared with OA group; †p < 0.05 compared with HA group (n = 6)Back to article page