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Effects of perivascular honokiol application on the expression of MMPs and TIMP-1. (A) Reverse transcription-quantitative polymerase chain reaction analysis of (A) MMP-1, (B) MMP-2, (C) MMP-9 and (D) TIMP-1 mRNA expression, GAPDH was used as an internal standard (n=8). *P<0.05, **P<0.01, ***P<0.001. MMP-1,-2,-9, matrix metalloproteinase-1,-2,-9; TIMP-1, tissue inhibitor of metalloproteinase-1.
