Fig. 3From: Hypoxia-inducible factor expression is related to apoptosis and cartilage degradation in temporomandibular joint osteoarthritisThe expression of matrix degeneration-related proteins in the OD rat model. Immunohistochemical analysis of ADAMTS5 and MMP13 in mandibular condylar cartilage (A). Positive cells is indicted by an “ → ”. Scale bars: 50 μm. ADAMTS5- (B) and MMP13-positive (C) cells were counted in the cartilage layer. *P < 0.05, **P < 0.01, ***P < 0.005. N = 8Back to article page