| 5-HT | 5-Hydroxy tryptophan |
| MDD | Major depression disorder |
| MAO | Monoamino oxidase |
| D1 | Dopamine 1 |
| D2 | Dopamine 2 |
| COX | Cyclooxygenase |
| XO | Xanthine oxidase |
| NOS | Nitric oxide synthase |
| LOX | Lipooxygenase |
| IP3 | Inositol triphosphate |
| PKC | Phosphokinase C |
| BDNF | Brain derived neurotrophic factor |
| CREB | cAMP-response element binding protein |
| NO | Nitric oxidase |
| SOD | Superoxide dismutase |
| BCL-2 | B-cell lymphoma 2 |
| TrkB | Tropomyosin receptor kinase B |