Figure 3: Fraction of collagen deposition in left ventricle myocardium measured with picrosirius red staining and morphometric quantification. Samples were controls (controls), pathological samples with non-detectable MMP-3 mRNA expression (N-MMP3) and pathological samples with detectable MMP-3 mRNA expresssion (MMP3). *p < 0.05 versus controls, **p < 0.01 versus controls.