FIG. 6.

Analysis of the biopolymer patches explanted after 6 weeks. All biopolymers are evenly lined with endothelial cells (b, g, l). The number of SMA-positive cells is higher on PDO and PHBVV patches in comparison with the PU patches (c, h, m). PU patches are insulated by macrophages (i, j), whereas inflammatory cells infiltrate both PDO (d, e) and PHBVV patches (n, o). Hematoxylin/eosin and DAPI staining shows a greater cellularization of the PDO and PHBVV patches compared with PU (a, b, c, f, g, h, k, l, m). Scale bar: 50 μm. SMA, smooth muscle actin. Color images available online at www.liebertpub.com/tea