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Effect of ginsenoside CK on the expression of MMP-2 and MMP-9. A549 cells were treated with TGF-β, with or without 1.5 μg·mL−1 or 3 μg·mL−1 ginsenoside CK for 24 h, and (a) the protein expression of MMP-2 and MMP-9 was determined by Western blotting. (b) The expressions of MMP-2 and MMP-9 were quantified by Gray analysis. Error bar, SD of three independent experiments. ∗P < 0.05.
