Figure 5.
Effects of biochanin A on protein expression of MMP-1,-3, −13, and TIMP-1 in interleukin-1β (IL-1β)–induced chondrocytes. Ratios obtained by normalizing the expressions of MMPs, TIMP-1 IkBa and NFkB to that of beta-actin bands. *P < 0.05, compared with cells stimulated with IL-1β alone; #P < 0.05, compared with normal chondrocytes.