| PD | Parkinsons disease |
| AD | Alzheimer’s disease |
| HD | Huntington’s disease |
| ROS | Reactive oxygen species |
| MAO-B | Monoamine oxidase B |
| BBB | Blood brain barrier |
| EGCG | Epigallocatechin-3-gallate |
| SNpc | Substantia Nigra pars compacta |
| MPTP | 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine |
| 6-OHDA | 6-hydroxydopamine |
| TH | Tyrosine hydroxylase |
| SOD | Superoxide dismutase |
| L-DOPA | L-dihydroxyphenylalanine |
| PKC-α | Protein kinase C-α |
| DAT | Dopamine transporters |
| COMT | Catecholamine-O-methyltransferase |
| 4-HNE | 4-hydroxyl-2-nonenal |
| MDA | Malondialdehyde |
| GSH | Glutathione |
| 3-NT | 3-Nitrotyrosine |
| mPTP | Mitochondrial membrane permeability transition pore |
| MMP | Mitochondrial membrane potential |
| PGC-1α | Peroxisome proliferator-activated receptor γ coactivator-1 α |
| TrkB | Tyrosine receptor kinase B |
| CNS | Central nervous system |
| TRAIL | TNF-related apoptosis-inducing ligand |