Table 3.
CRC stool metabolite numbers within each of the assigned metabolic pathways
| Metabolic pathway | Number of metabolites |
|---|---|
| Amino acid | 102 |
| Alanine and aspartate | 5 |
| Glutamate | 4 |
| Glutathione | 1 |
| Glycine, serine, and threonine | 6 |
| Histidine | 5 |
| Leucine, isoleucine, and valine | 17 |
| Lysine | 8 |
| Methionine, cysteine, SAM, and taurine | 9 |
| Phenylalanine and tyrosine | 23 |
| Polyamine | 6 |
| Tryptophan | 10 |
| Urea cycle; arginine and proline | 8 |
| Carbohydrate | 27 |
| Aminosugar | 6 |
| Disaccharides and oligosaccharides | 2 |
| Fructose, mannose, and galactose | 4 |
| Glycogen | 1 |
| Glycolysis, gluconeogenesis, and pyruvate | 3 |
| Pentose | 11 |
| Cofactors and vitamins | 20 |
| Ascorbate and aldarate | 1 |
| Hemoglobin and porphyrin | 5 |
| Nicotinate and nicotinamide | 4 |
| Pantothenate and CoA | 1 |
| Riboflavin | 2 |
| Tetrahydrobiopterin | 1 |
| Thiamine | 2 |
| Tocopherol | 3 |
| Vitamin B6 | 1 |
| Energy | 7 |
| Oxidative phosphorylation | 1 |
| TCA cycle | 6 |
| Lipid | 142 |
| Carnitine metabolism | 3 |
| Endocannabinoid | 2 |
| Fatty acid | 56 |
| Fatty alcohol, long chain | 2 |
| Glycerolipid | 2 |
| Inositol | 2 |
| Ketone bodies | 1 |
| Lysolipid | 16 |
| Monoacylglycerol | 8 |
| Phospholipid | 1 |
| Primary bile acid | 6 |
| Secondary bile acid | 12 |
| Sphingolipid | 4 |
| Steroid | 9 |
| Sterol | 7 |
| Nucleotide | 25 |
| Purine and pyrimidine | 1 |
| Purine metabolism | 5 |
| (Hypo) xanthine/inosine containing | 2 |
| Purine metabolism, adenine containing | 4 |
| Purine metabolism, guanine containing | 1 |
| Pyrimidine metabolism, cytidine containing | 1 |
| Pyrimidine metabolism, orotate containing | 4 |
| Pyrimidine metabolism, thymine containing | 7 |
| Pyrimidine metabolism, uracil containing | |
| Peptide | 106 |
| Dipeptide | 99 |
| Gamma-glutamyl amino acid | 4 |
| Polypeptide | 3 |
| Xenobiotics | 71 |
| Benzoate | 4 |
| Chemical | 13 |
| Drug | 10 |
| Food component/plant | 33 |
| Xanthine | 11 |