Our results showed in Fig. 3 that heart valve tissue from patients with dilated cardiomyopathy was positive for Fibronectin, MMP-2, MMP-9, MAP-LC3, TGF-β R I, and TGF-β R II, except for sparse cytoplasmic staining in a few glia and neurons. The gene discussed is MMP2; the disease is dilated cardiomyopathy.