| PD | Parkinson’s disease |
| iPD | idiopathic Parkinson’s disease |
| SNc | substantia nigra pars compacta |
| LP | Lewy pathology |
| -syn | -synuclein |
| LB | Lewy body |
| PB | pale body |
| mtDNA | mitochondrial DNA |
| MRC | mitochondrial respiratory chain |
| CI | complex I |
| ROS | reactive oxygen species |
| CIV | complex IV |
| PMI | post-mortem interval |
| IHC | Immunohistochemistry |
| MELAS | mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes |