| 3-HAA | 3-hydroxyanthranilic acid |
| 3-HAAO | 3-hydroxyanthranilate 3,4-dioxygenase |
| 3-HK | 3-hydroxykynurenine |
| 5-HT | 5-hydroxytryptamine |
| 5-HTP | 5-hydroxytryptophan |
| AA | Anthranilic acid |
| ACMS | 2-amino-3-carboxymuconic semialdehyde |
| ACMSD | 2-amino-3-carboxymuconate semialdehyde decarboxylase |
| AhR | Aryl hydrocarbon receptor |
| AMPA | α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid |
| ATP | Adenosine triphosphate |
| BaP | Benzo[a]pyrene |
| CAT | Catalase |
| CO2 | Carbon dioxide |
| CRH | Corticotropin releasing hormone |
| CYP | Cytochrome P450 |
| DDT | Dichlorodiphenyltrichloroethane |
| FICZ | 6-formylindolo[3,2-b]carbazole |
| GC | Glucocorticoid |
| GPx | Glutathione peroxide |
| GR | Glucocorticoid receptor |
| HPA | Hypothalamic-pituitary-adrenocortical |
| IAA | Indole-3-acetic Acid |
| IDO | Indoleamine 2,3-dioxygenase |
| IFN-γ | Proinflammatory interferon-gamma |
| IL | Interleukin |
| IPA | Indole-3-pyruvic acid |
| ITE | 2-(1′H-indole-3′-carbonyl)-thiazole-4-carboxylic acid methyl ester |
| KAT | Kynurenine aminotransferase |
| KMO | Kynurenine monooxygenase |
| KYN | Kynurenine |
| KYNA | Kynurenic acid |
| KYNU | Kynureninase |
| MAOA | Monoamine oxidase A |
| NAD+ | Nicotinamide adenine dinucleotide |
| NIC | Nicotinic acid |
| NMDA | N-methyl-D-aspartate |
| OS | Oxidative stress |
| PAC | Polycyclic aromatic compound |
| PAH | Polycyclic aromatic hydrocarbon |
| PIC | Picolinic acid |
| PCB | Polychlorinated biphenyl |
| PCDD | Polychlorinated dibenzo-p-dioxin |
| PCDF | Polychlorinated dibenzofuran |
| PGE3 | Prostaglandin |
| QPRT | Quinolinate phosphoribosyltransferase |
| QUIN | Quinolinic acid |
| ROS | Reactive oxygen species |
| SOD | Superoxide dismutase |
| TCDD | 2,3,7,8-tetrachlorodibenzo-p-dioxin |
| TDO | Tryptophan 2,3-dioxygenase |
| TGF-b | Tumor growth factor-beta |
| Th | T-helper |
| TNFa | Tumor necrosis factor-alpha |
| TRP | Tryptophan |
| TRP-KYN | Tryptophan-kynurenine |
| UV | Ultraviolet |
| XA | Xanthurenic acid |