Beneficial Effect of Shikonin on Experimental Colitis Induced by Dextran Sulfate Sodium in Balb/C Mice

Table 1

Scoring system to calculate the disease activity index.

Scoring of disease activity index (DAI**)
Score	Weight loss	Stool consistency	Visible blood in feces
0	None	Normal	None
1	1–5%
2	6–10%	Loose	Slight bleeding
3	11–20%
4	>20%	Diarrhea	Gross bleeding

**The DAI value is calculated as the sum of scores of weight loss, stool consistency, and blood in feces.