Angiopoietin and vascular endothelial growth factor expression in colorectal disease models

Figure 1 Hematoxylin and eosin staining of colons obtained from rats in each group. A: Normal colonic histology (× 20); B: Colonic histology from a rat with ulcerative colitis (× 20); C: Dysplastic lesion in a rate with colorectal cancer (× 200); D: Cancer lesion in a rat with colorectal cancer (× 200).

Figure 2 Protein expression in colorectum. Representative Western blots and quantitation of angiopoietin (Ang)-1, Ang-2, tyrosine kinase with immunoglobulin-like and EGF-like domains-2 (Tie-2), and vascular endothelial growth factor (VEGF) (normalized to β-actin). Lane 1: Group A (colorectal cancer); Lane 2: Group B (ulcerative colitis); Lane 3: Group C (control). Error bars represent standard deviation.