Fig 4. (A-H): Representative coronary section of LDLR-KO pig at four weeks after balloon injury.
Intimal hyperplasia consists of accumulated lipid and dense macrophage infiltration. A and B, hematoxylin-eosin; C and D, Elastica van Gieson; D and E, Azan; G and H, cathepsin S immunohistochemical staining. Scale bar, 500 μm on the left panel and 50 μm on the right panel.