Fig. 4

Taxonomy composition of the gut microbiota at the class level. a A heatmap analysis of the class levels for the three experimental groups. Genomic DNA was extracted from the fecal samples obtained 19 d after the start of DSS treatment. The samples were analyzed for their bacterial composition based on pyrosequencing of 16S rRNA. The data are represented by red and green colors and the cut-off value was set at 5% (b, c) Relative abundance of the major gut microbiota at the class levels. Data shown are the means ± SEM and were analyzed by one-way ANOVA and Newman-Keuls’s post hoc test (p < 0.05); n = 6 mice per group