Figure 6

Immunohistochemical characterisation of vein grafts 7 days and 28 days after iNOS transfection. Immunostaining of vein graft samples (brown colour), (a) CD31 at 7 days; and (b) CD31 at 28 days after transfection with the iNOS gene. Bars=50 μm. E, endothelium; I, neointima; V, vasa vasorum.