| IBD | inflammatory bowel disease |
| UC | ulcerative colitis |
| CD | Crohn’s disease |
| IBD-U | unclassified IBD |
| GI | gastrointestinal |
| GWAS | genome-wide association studies |
| STAT3 | Signal Transducer and Activator of Transcription 3 |
| AIEC | Adherent-Invasive Escherichia coli |
| ELISA | enzyme-linked immunosorbent assay |
| CRP | C-reactive protein |
| ECCO | European Crohn’s and Colitis Organisation |
| 5-ASA | 5-Aminosalicylic acid |
| TNFα | tumor necrosis factor α |
| ADCC | antibody-dependent cell-mediated cytotoxicity |
| S1P | Sphingosine-1-phosphate |
| SIR | Standardized Incidence Ratio |
| CRC | colorectal cancer |
| SBC | small bowel cancer |
| SBA | small bowel adenocarcinoma |
| ALL | acute lymphocytic leukemia |
| 6-TGN | 6-thioguanine nucleotides |
| MMR | mismatch repair |
| MS | mass spectrometry |
| TOF | time-of-flight |
| ESI | electrospray ionization |
| MALDI | matrix-assisted laser desorption/ionization |
| SELDI | surface-enhanced laser desorption/ionization |
| MRM | multiple reaction monitoring |
| PSC | primary sclerosing cholangitis |
| CCA | cholangiocarcinoma |
| NMSC | non-melanoma skin cancer |
| BCC | basal cell carcinoma |
| EBV | Epstein–Barr virus |