Figure 2.

Changes in gastrointestinal taxa after anti-Helicobacter pylori treatment. To identify differential microbial taxa after treatment, paired t-tests were performed after arcsine transformation of relative abundance data and Q values were used for multiple testing adjustment with a significance threshold of 0.05. Significantly changed taxa after successful eradication were shown (A) in gastric biopsies at phylum and genus levels with mean relative abundance >1%; (B) in stool samples at all levels with mean relative abundance >1%. Only eight taxa with low baseline abundances (<1%) were changed significantly in stool samples after failed treatment (C).