Figure 6.

Metabolism alterations in the tongue coating microbiome at the early stage. Predicted functional profiling of microbial communities by PICRUSt, which collapsed into level 3 in the KEGG database pathways. (A) Comparison of the cysteine and methionine metabolism pathway between the HB and CB groups; P = 10.028. (B) Comparison of the sulfur metabolism pathway between the HF and CF groups; P = 10.039. (C) Comparison of the sulfur relay system in the folding, sorting and degradation pathway between the HF and CF groups; P = 10.012.