| 5-HT | 5-hydroxytryptamine |
| SCFA | Short-chain fatty acid |
| GAS | Gastrin |
| MTL | Motilin |
| VIP | Vasoactive intestinal peptide |
| ZO-1 | Zonula Occludens-1 |
| MUC2 | Mucin 2 |
| AhR | Aryl hydrocarbon receptor |
| AQP4 | Aquaporin 4 |
| GABA | γ-aminobutyric acid |
| GAPDH | Glyceraldehyde-3-phosphate dehydrogenase |
| PCoA | Principal Coordinates Analysis |