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Comparison of serum inflammation markers between the two groups before and after treatment. A: Comparison of TNF-α levels between the two groups before and after treatment; B: Comparison of IL-1β levels between the two groups before and after treatment; C: Comparison of MMP-13 levels between the two groups before and after treatment. Note: *P<0.05; **P<0.01. TNF-α, tumor necrosis factor (TNF)-α; IL-1β, interleukin (IL)-1β; MMP-13, matrix metalloproteinase (MMP)-13.
