Kefir treatment ameliorates dextran sulfate sodium-induced colitis in rats

Table 2 Microscopic colitis score

Mucosal epithelium
	Ulceration; none (0); mild surface (1); moderate (2); extensive-full thickness (3)
Crypts
	Mitotic activity; lower third (0); mild mid-third (1); moderate mid-third (2); upper third (3)
	Neutrophilic infiltrate
	Mucus depletion
Lamina propria
	Plasmacytoid infiltrate
	Neutrophilic infiltrate
	Vascularity
Fibrin deposition
	None (0); mucosal (1); submucosal (2); transmural (3)
Submucosal
	Neutrophilic infiltrate
	Edema

Scoring scale: 0, none; 1, mild; 2, moderate; 3, severe; maximum score = 30.