Table 1.

Disease activity index (DAI) score used to evaluate the DSS-induced colitis. DAI index was calculated as total score (body weight decrease + stool consistency + rectal bleeding) divided by 3.

Score	Body weight decrease (%)	Stool consistency	Rectal bleeding
0	< 1	Normal	Normal
1	1–5
2	5–10	Loose stools
3	10–20
4	>20	Diarrhea	Gross bleeding

The humane end-point was established at DAI = 3.