Fig. 9From: Joint hemorrhage accelerates cartilage degeneration in a rat immobilized knee modelInterleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) expression in the cartilage in the non-contact area. There was no significant difference in IL-1β expression. TNF-α expression in the femur at 8 weeks and tibia at 4- and 8- weeks was significantly increased in the Im-B group compared with that in the Im-NS groupBack to article page