Fig. 5

A Representative fluorescence micrographs of immunostaining for CD68 (pan-macrophage marker) at 3 months, indicated by the yellow arrows (left column). CD68 was stained red, and nuclei were counterstained with DAPI (blue). Immunostaining of collagen I/III (right column). Collagen type I was stained green, collagen type III was stained red, and cell nuclei were counterstained with DAPI (blue). Images are representative of at least three independent samples. L = lumen. B Wall thickness differed between native vessels and PCL/PDO grafts at 3 months