Research Paper Volume 14, Issue 19 pp 7877—7889

Figure 5. The collagen deposition of myocardial tissue in each group rats on the 7th day after AMI. To characterize myocardial tissue damage, the formalin-fixed and paraffin-embedded myocardial tissue sections were stained using a masson’s trichrome stain kit; by which collagen is stained blue, nucleus is dyed black; cytoplasma and muscle fibers is red. Stained sections were observed under optical microscopy, and were photographed by digital camera. (A–D) Photos of myocardial sections stained by masson G in rats of the Ctrl, HL, AMI, and HL-AMI group, respectively (×100).