Fig. 5From: Icariin improves cardiac function and remodeling via the TGF-β1/Smad signaling pathway in rats following myocardial infarctionIcariin reduced the levels of collagen I, collagen III, MMP2 and MMP9. Immunohistochemical staining of collagen I (A), collagen III (B), MMP2 (C) and MMP9 (D) in heart sections. (magnification, × 40; scale bar, 250 μm)Back to article page