AD	Alzheimer’s disease
α-Syn	alpha-synuclein
CSF	cerebrospinal fluid
DLB	dementia with LB
ECLIA	electro-chemiluminescence
ELISA	enzyme-linked immunosorbent assay
ENS	enteric nervous system
f-α-Syn	filamentous α-Syn
FLIM	Fluorescent Lifetime Imaging
GI	Gastrointestinal
GIT	GI tract
Hsp70	heat shock protein 70
IHC	immunohistochemical analysis
Lamp2a	lysosomal-associated membrane protein 2a
LB	Lewy bodies
LCO	luminescent conjugated oligothiophenes
L-DOPA	l-3,4-dihydroxyphenylalanine
LN	Lewy neurites
miRNAs	microRNAs
MPTP	1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine
MSA	multiple system atrophy
NAC	non-amyloid-β component
o-α-Syn	oligomeric α-Syn
PMCA	cyclic amplification of misfolding proteins
p-α-Syn	phosphorylated α-Syn
PD	Parkinson’s disease
PDD	PD with dementia
PET	paraffin-embedded tissue blot
PK	Proteinase K
PLA	proximity ligation assay
PSP	progressive supranuclear palsy
PTM	posttranslational modifications
RT-QuIC	Quaking-Induced Conversion
SNpc	substantia nigra pars compacta
t-a-Syn	total α-Syn
TFEB	transcription factor EB
ThT	Thioflavin T
UTR	3′-untranslated region