| 64Cu | Copper-64 |
| 18F | Fluorine-18 |
| 89Zr | Zirconium-89 |
| 99mTc | Technetium-99m |
| 111In | Indium-111 |
| CD | Crohn’s disease |
| CD4 | Cluster of differentiation 4 |
| CD11b | Cluster of differentiation 11b |
| CFA | Complete Freund’s adjuvant |
| CT | Computed tomography |
| CXCL8 | C-X-C motif chemokine ligand 8; interleukin 8 |
| DSS | Dextran sodium sulfate |
| GAP | Goblet cell-associated passage |
| GI | Gastrointestinal |
| GIT | Gastrointestinal tract |
| Fab | Fragment antigen-binding |
| HMPAO | Hexamethylpropyleneamine oxime |
| HYNIC | Hydrazinonicotinic acid |
| IBD | Inflammatory bowel disease |
| IgG | Immunoglobulin G |
| IFN | Interferon |
| IL | Interleukin |
| JAK | Janus kinase |
| MAdCAM-1 | Mucosal vascular addressin cell adhesion molecule 1 |
| MHCII | Major histocompatibility complex II |
| MMP | Matrix metalloproteinase |
| MRI | Magnetic resonance imaging |
| mSv | Milliseiverts |
| OTU | Operational taxonomic unit |
| PET | Positron emission tomography |
| rRNA | Ribosomal ribonucleic acid |
| SERS | Surface enhanced Raman spectroscopy |
| SPECT | Single photon emission computed tomography |
| TNBS | Trinitro benzene sulfonic acid |
| TNF-α | Tumor necrosis factor alpha |
| UC | Ulcerative colitis |
| VHH | Variable domain of heavy-chain antibodies |
| WBC | White blood cell |