Fig. 2From: Hypoxia-inducible factor expression is related to apoptosis and cartilage degradation in temporomandibular joint osteoarthritisThe expression of matrix proteins in condylar cartilage. Immunohistochemical analysis of Acan, Col II in mandibular condylar cartilage (A). Positive cells is indicted by an “ → ”.Scale bars 50 μm. Acan- (B), Col II- (C) positive (D) cells were counted in the cartilage layer. *P < 0.05, **P < 0.01. ***P < 0.005. N = 6Back to article page