Sodium selenite ameliorates dextran sulfate sodium-induced chronic colitis in mice by decreasing Th1, Th17, and γδT and increasing CD4(+)CD25(+) regulatory T-cell responses

Table 1 Disease activity index score chart

Fecal property	Fecal occult blood	Body weight decrease (%)	Integral
Normal	Normal	0	0
		1-5	1
Relaxed	Positive fecal occult blood	> 5-10	2
		> 10-15	3
Loose stools	Naked eye fecal occult blood	> 15	4

Normal stool: shaped stool; Relaxed stool: pasty, unformed stools not attached to the anus; Loose stools: unshaped stools attached to the anus.

Table 2 Histology injury score chart

Grade	0	1	2	3	4
Inflammation	None	Mild	Moderate	Severe	-
Mucosal damage	None	Mucous layer	Submucosa	Muscularis and serosa	-
Crypt damage	None	1/3	2/3	100%	100% with epithelium loss
Pathological change range	None	0%-25%	26%-50%	51%-75%	76%-100%