Effects of probiotic cocktail on the composition of bacterial communities in rats with OM caused by radiotherapy and chemotherapy. (A) Shannon index of intestinal bacterial communities among C, M, and T groups at days 7, 14, and 21. (B) Simpson index of intestinal bacterial communities among C, M, and T groups on the 7th, 14th, and 21st days. (C) Principle coordinate analysis (PCoA) of intestinal bacterial communities among C, M, and T groups on the 7th, 14th, and 21st days. (D) Relative abundance of Bacteroidetes of intestinal bacterial communities at the phylum level among C, M, and T groups on the 7th, 14th, and 21st days. (E) Relative abundance of Firmicutes of intestinal bacterial communities at the phylum level among C, M, and T groups on the 7th, 14th, and 21st days. (F) Relative abundance of Bacteroidetes of intestinal bacterial communities at the genus level among C, M, and T groups on the 7th, 14th, and 21st days. (G) Relative abundance of Lachnospiraceae of intestinal bacterial communities at the genus level among C, M, and T groups on the 7th, 14th, and 21st days. (H) Relative abundance of Ruminococcus of intestinal bacterial communities at the genus level among the C, M, and T groups on the 7th, 14th, and 21st days.