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MMP-2,9 activity in coronary artery bypass graft (CABG) smooth muscle cell (SMC) and donor SMC. Latent and active form of MMP-2 and MMP-9 activity was measured by zymography in the supernatants from corresponding cell cultures. The cells derived from CABG patient ( n = 7) have similar MMP activity levels to the cells derived from the aortic tissue of the donors (n = 6). The groups are compared using Mann–Whitney nonparametric test. The lines represent the median.
