Microbiota-nutrition sequential therapy for refractory radiation proctitis: A case report

Figure 3 Microbiome analysis of the patient before and after sequential fecal microbiota transplantation. A: α-diversity represented by the Shannon diversity index, showing changes in gut microbial richness across pre-fecal microbiota transplantation (FMT), FMT-1, FMT-2, and donor samples; B: β-diversity analyzed via principal coordinates analysis, illustrating dissimilarities in microbial community structure; C: Taxonomic classification of gut microbiota at the phylum level; D: Taxonomic classification of gut microbiota at the genus level. pre-FMT: Baseline before FMT; FMT-1: 1 month after the first FMT; FMT-2: 2 months after the second FMT; PCoA: Principal coordinates analysis; Donor1/Donor2: Fecal microbiota donors.