| aSyn | Alpha-synuclein |
| AUC | Area under the ROC Curve |
| B3galt4 | Beta-1,3-Galatosyl transferase 4; GM1 Synthase |
| B4galnt1 | Beta-1,4-N-Acetyl-Galactosaminyltransferase 1; GM2 Synthase |
| BDNF | Brain-derived neurotrophic factor |
| CNS | Central nervous system |
| CSF | Cerebrospinal Fluid |
| CtxB | Cholera toxin B |
| DA | Dopamine; Dopaminergic neurons |
| GBA | Glucocerebrosidase |
| GDNF | Glial cell line derived neurotrophic factor |
| HPTLC | High performance thin-layer chromatography |
| HRP | Horseradish peroxidase |
| HSD | Honestly significant difference |
| N’ase | Neuraminidase |
| NEU3 | Neuraminidase 3 |
| NGF | Nerve growth factor |
| PBMC | Peripheral blood mononuclear cells |
| PBS | Phosphate-buffered saline |
| PD | Parkinson’s disease |
| PNS | Peripheral nervous system |
| REM | Rapid eye movement |
| ROC | Receiver operating characteristic |
| RPM | Revolutions per minute |
| sPD | Sporadic Parkinson’s disease |
| ST3gal2 | Beta-galactoside alpha-2,3-sialyltransferase 2; GD1a Synthase |
| TrkA | Tropomyosin receptor kinase A |
| TrkB | Tropomyosin receptor kinase B |
| UPDRS | Unified Parkinson’s disease rating scale |