Figure 4.

FA promoted collagen metabolism. (A-B) The expression of MMP-1 and TIMP-1 mRNA. (C-D) The expression of MMP-1 and TIMP-1 proteins. (E-G) The content of MMP-1 and TIMP-1 in medium supernatant. (H) The content of hydroxyproline. Data of three independent experiments were represented by mean ± S.D. ∗∗∗p <0.001 TGF-β1 vs control; ∗∗p <0.01 TGF-β1 vs control. ###p <0.001 TGF-β1 + FA vs TGF-β1;##p <0.01 TGF-β1 + FA vs TGF-β1; #p <0.05 TGF-β1 + FA vs TGF-β1.