| AAALAC | Association for Assessment and Accreditation of Laboratory Animal Care International |
| CKD | chronic kidney disease |
| CMC | carboxymethylcellulose |
| Da | Dalton |
| ESI | electrospray ionisation |
| FGF | fibroblast growth factor |
| FXR | farnesoid X receptor |
| GC | gas chromatography |
| GCDCA | glycochenodeoxycholic acid |
| HA | hippuric acid |
| HCA | hierarchical clustering analysis |
| i.p. | intraperitoneal |
| IAA | indole-3-acetic acid |
| IS | 3-indoxylsulfate |
| ID | inner diameter |
| LC | liquid chromatography |
| MS | mass spectrometry |
| MRM | multiple reaction monitoring |
| MTBE | 2-Methoxy-2-methylpropan |
| OECD | Organisation for Economic Co-operation and Development |
| O-PLS-DA | orthogonal projection of latent structures |
| p.o. | per os, by mouth |
| PCA | principal component analysis |
| PCoA | principal coordinate analysis |
| PCR | Polymerase chain reaction |
| s.c. | subcutaneous |
| SPE | solid phase extraction |
| TCA | taurocholic acid |
| TCDCA | taurochenodeoxycholic acid |
| TGR5 | trans-membrane-bound G-protein-coupled receptor |
| UHPLC-ESI | ultra-high-performance liquid chromatography-electrospray ionization |
| VDR | vitamin D receptor |
| QIIME | Quantitative Insights Into Microbial Ecology |
| α-MCA | alpha-muricholic acid |