Monocolonization of Germ-Free Mice with Bacteroides fragilis Protects against Dextran Sulfate Sodium-Induced Acute Colitis

Table 2

Effect of DSS on body weight, spleen weight, ratio of spleen to body weight, and colon length in each group.

	GF-WA	BF-WA	GF-DSS	BF-DSS
Body weight (g)	28.07±0.82	25.87±0.89	26.69±0.73^#	25.12±0.73
Spleen weight (g)	0.064±0.009	0.062±0.012	0.098±0.023^#	0.070±0.009^∗
Spleen/body weight (%)	0.22±0.03	0.23±0.06	0.37±0.06^#	0.28±0.09^∗
Colon length (cm)	8.4±0.3	7.6±0.4	6.3±0.4^#	6.8±0.4^∗
Occult index	0±0	0±0	3.8±0.5^#	1.3±0.5^∗

WA: water.
^#𝑃<0.05 compared with GF-WA; ^∗𝑃<0.05 compared with GF-DSS.