Table 2 Mucosal damage evaluation after acetic acid ulcer in rats
Ulcer score | Macroscopic damage |
|---|---|
0 | No pathological change |
1 | Mucosa edema and petechial haemarrhages |
2 | 1–5 small ulcers (1–2 mm) |
3 | More than five small ulcers or one medium ulcer (3–4 mm) |
4 | Two medium ulcers or one large ulcer (more than 4Â mm) |
5 | Perforated ulcer |