Fig. 4.

Effects of Lycium barbarum polysaccharides (LBP) and/or C-phycocyanin (CPC) on relative abundance of a major phyla and b Bifidobacterium genus in gastric microbiota. N, standard powder diet; ASP, aspirin; LBP, aspirin + Lycium barbarum polysaccharides (LBP); CPC, aspirin + C-phycocyanin (CPC); MIX, aspirin + LBP + CPC. The horizontal lines in a boxplot from the bottom to the top represent the 25th percentile, median, and the 75th percentile of diversity values in each group (n = 5 per group). Relative abundance (%) of major phyla is percentage distribution of bacteria in the classification to all microbiota. Differences between the groups were determined by Kruskal–Wallis one-way ANOVA followed by Wilcoxon-Mann–Whitney test. *p < 0.05 compared with the N group; ^#p < 0.05 compared with the ASP group