Fig. 6From: Collagen type II solution extracted from supercritical carbon dioxide decellularized porcine cartilage: regenerative efficacy on post-traumatic osteoarthritis modelEffect of Col II solution on cartilage collagen II expressions in MNX-induced rat OA. Immunostaining of collagen II expression (a), the quantification optical density of collagen II 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