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Myocardial matrix metalloproteinase (MMP)-2 and MMP-9 levels in I/R (n = 8) and I/R + 10 days epicatechin hearts (n = 7) as determined by gelatin zymography. A: representative gelatin zymograms of myocardial MMP-2 and MMP-9 levels in I/R and I/R + 10 days epicatechin. B: densitometric analysis of 92-kDa MMP-9 zymographic activity. Values are means ± SE. Std, human MMP-2/-9 standard.
