Figure 5.
Expressions levels of (A) LOX, (B) MMP-2 and (C) MMP-9 in rats of the synovial membrane of the control group (C), model group (M) and intervention group (I), as determined by immunohistochemical staining. Following establishment of the CIA model, the expressions levels of LOX, MMP-2 and MMP-9 in the synovial membranes were increased compared with those in the control group. However, following inhibition of LOX with BAPN, the expression levels of MMP-2 and MMP-9 were decreased significantly compared with those in (D) the model group. Data are presented as the mean ± standard deviation. LOX, lysyl oxidase; MMP, matrix metalloproteinase; CIA, collagen-induced arthritis; BAPN, β-aminopropionitrile.