Table 2.

Effect of probiotic treatment on colitis severity in the 1% dextran sulphate sodium (DSS) mild colitis model.

Treatment	Macroscopic score	Histological score	Colon length (cm)	Weight gain/loss (g)*	Survival rate
PBS (control) (n = 10)	7·5 ± 0·4	11·5 ± 0·5	7·1 ± 0·2	3·2 ± 0·4	10/10
LGG wild-type (n = 10)	6·7 ± 0·4	11·1 ± 0·5	6·8 ± 0·1	2·8 ± 0·4	10/10
dltD mutant (n = 5)	5·6 ± 0·6†	12·6 ± 0·9	7·0 ± 0·1	2·8 ± 0·5	5/5

All data represent mean ± standard error of the mean.

^*Weight gain/loss was determined by calculating the difference in weight between day 28 (end of the experiment) and day 0 (start of the experiment). Comparison between all groups has been calculated; only significant differences are marked.

^†P < 0·05 between dltD mutant and phosphate-buffered saline (PBS)-treated group. LGG: Lactobacillus rhamnosus GG.