| CIM | Chemotherapy-induced intestinal mucositis |
| 5-FU | 5-Fluorouracil |
| BE | Betulin |
| DAI | Disease Activity Index |
| PCoA | Principal Coordinates Analysis |
| PCA | Principal Component Analysis |
| NMDS | Non-metric multidimensional scaling |
| LEfSe | Linear discriminant analysis effect size |
| H&E | Hematoxylin and eosin |
| Nos2 | Nitric oxide synthase 2 |
| Tnf | Gene encoding tumor necrosis factor alpha |
| iNOS | Inducible nitric oxide synthase |