- Mucin 2 (MUC2)
- Endomorphin 2 (EM2)
- Trefoil Factor 2 (TFF2)
- Tumor Necrosis Factor Receptor Superfamily, Member 17 (TNFRSF17)
- Neuromedin B (NMB)
- 5-Hydroxytryptamine (5-HT)
- Alpha-1-Acid Glycoprotein (a1AGP)
- Neuromedin S (NMS)
- Apelin 12 (AP12)
- Gastric Inhibitory Polypeptide (GIP)
- Ghrelin (GHRL)
- Neuromedin U (NMU)
- Cholecystokinin 8 (CCK8)
- Galanin (GAL)
- Alkaline Phosphatase, Intestinal (ALPI)