α-syn	Alpha-synuclein
Aβ	Amyloid-beta
AAO	Age at onset
ANK	Ankyrin domain
ARM	Armadillo domain
BDNF	Brain-derived neurotrophic factor
BST1	Bone marrow stromal cell antigen 1
CBD	Corticobasal degeneration
CD	Crohn’s disease
COR	C-terminal of ROC domain
DLB	Dementia with Lewy bodies
DNM3	Dynamin-3
ET	Essential Tremor
GAK	Cyclin-G-associated kinase
GBA	Glucosidase, beta, acid, or glucocerebrosidase
GCI	Glia cytoplasmic inclusions
GTP	Guanosine triphosphate
GWAS	Genome-wide association study
HRV	Heart-rate variability
IBD	Inflammatory bowel disease
iPD	Idiopathic Parkinson’s disease
iPSC	Induced pluripotent stem cells
LB	Lewy body
LBD	Lewy body disorder
LRR	Leucine-rich repeat domain
LRRK2	Leucine-rich repeat kinase 2
MAPT	Microtubule-associated protein tau
MRI	Magnetic resonance imaging
MSA	Multiple system atrophy
PD	Parkinson’s disease
PDD	Parkinson’s disease dementia
PSP	Progressive supranuclear palsy
PSP-P	Progressive supranuclear palsy parkinsonism
PRS	Polygenic risk score
REM	Rapid eye movement
Roc	Ras of complex proteins
SND	Substantia nigra degeneration
SNP	Single nucleotide polymorphism
TDP-43	Transactive response DNA-binding protein 43
VAMP4	Vesicle-associated membrane protein 4
VaP	Vascular parkinsonism