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Table 1 Mucosal damage evaluation after pylorus ligation in rats (Small < 2 mm; marked ≥ 2 mm)

From: Folic acid protects and heals gastric mucosa: role of acid output, inflammatory cytokines, angiogenic and growth factors

Ulcer score Macroscopic damage
0.0 No lesions
0.5 Diffuse hyperemia
1.0 1–2 small erosions
1.5 3–6 small erosions
2.0 7–10 small erosions
2.5 More than 10 small erosions
3.0 1 marked erosion plus 0–4 small erosions
3.5 1 marked erosion plus 5 or more small erosions
4.0 2 marked erosions plus 0–4 small erosions
4.5 2 marked erosions plus 5 or more small erosions
5.0 3 or more marked erosions