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The expression of NF-κB, MMP-2, MMP-9 and TGFβ-1 was analyzed by Western blotting (A,B). Distributions of MMP-9, NF-κB, TNF-α, IL-6 and IL-1β (arrow) expressions based on immunohistochemistry results (C). Brown represents positive staining for MMP-9 in NDM, DM and DMR cytoplasms (magnification, ×100). * p < 0.05 DM compared with the NDM group, § p < 0.05 DMR compared with the NDM group, # p < 0.05 DMR compared with the DM group.
