Figure 4:

Immunohistochemical cross-sections at the margin of a porcine (A) and a bovine (B) pericardial patch at day 14 after implantation in the dorsal skinfold chambers of C57BL/6 mice. *: patches, note the higher micro-vessel density at the margin of the bovine compared (B) with the porcine (A) pericardial patch. (C) Micro-vessel density (mm⁻²) at the margin of porcine (white bar; n = 8) and bovine grafts (grey bar; n = 8) at day 14 after implantation. Mean ± standard deviation of the mean. *P = 0.001 versus porcine. Scale bars = 75 µm.