| CA | Cholic acid |
| CaP | Calcium phosphate |
| CDCA | Chenodeoxycholic acid |
| CKD | Chronic kidney disease |
| DCA | Deoxycholic acid |
| DOR | δ-opioid receptor |
| GABA | Gamma-aminobutyric acid |
| KOR | κ-opioid receptor |
| LPA | Lysophosphatidic acid |
| LPC | Lysophosphatidylcholilne |
| MOR | μ-opioid receptor |
| MRGPRX4 | Mas-Related G Protein-coupled Receptor member X4 |
| SP | Substance P |
| TGR5 | Takeda G protein-coupled receptor 5 |
| TRP | Transient receptor potential |
| UV | Ultraviolet |