Figure 2From: Effects of low-intensity pulsed ultrasound and hyperbaric oxygen on human osteoarthritic chondrocytesEffect of HBO and LIPUS on TIMP-1 production. TIMP-1 production in OA chondrocytes was significantly up-regulated by the HBO and LIPUS treatment. In addition, the HBO combined with LIPUS treatment resulted in an additive effect in the TIMP-1 production (*p < 0.05, **p < 0.01).Back to article page