Polydeoxyribonucleotide Exerts Therapeutic Effect by Increasing VEGF and Inhibiting Inflammatory Cytokines in Ischemic Colitis Rats

Table 1

Wallace macroscopic and microscopic colonic damage score.

Score	Appearance
Macroscopic
0	Normal
1	Local hyperemia without ulceration
2	Ulceration without hyperemia
3	Ulceration with hyperemia at one site
4	Ulceration with hyperemia at two of more sites
5	Ulceration extending more than 2 cm at several sites
Microscopic
0	Normal
1	Damage limited to surface epithelium
2	Focal ulceration limited to mucosa
3	Focal, transmural inflammation and ulceration
4	Extensive transmural ulceration and inflammation bordered by normal mucosa
5	Extensive transmural ulceration and inflammation involving entire section