Fig. 7From: Early patellofemoral articular cartilage degeneration in a rat model of patellar instability is associated with activation of the NF-κB signaling pathwayThe areal density of immunoistochemical analyses (a-d) and target gene expression of qRT-PCR evaluation ( A′-D′) in the two groups: showed higher expression of MMP-13, Collagen X, TNF-ɑ, and NF-κB in the PI Group at 4, 8, and 12 weeks after surgery. *p < 0.05 (PI Group, patellar instability group)Back to article page