Aβ	Amyloid β
AD	Alzheimer’s disease
AF	Amyloid fibrils
α-syn	α-synuclein
AO	Amyloid oligomer
AP	Amyloid plaque
APC	Antigen presenting cell
APP23	Amyloid precursor protein 23
BBB	Blood-brain barrier
CSF	Cerebrospinal fluid
CNS	Central nervous system
DA	Dopamine
DSP-4	N-(2-chloroethyl)-N-ethyl-2-bromobenzylamine
HSP-70	Heat shock protein 70
LB	Lewy body
LC	Locus Coeruleus
LPS	Lipopolysaccharide
MCI	Mild cognitive impairment
MTPT	1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine
NA	Noradrenaline
NDD	Neurodegenerative disorders
NFT	Neurofibrillary tangle
NM	Neuromelanin
PAMP	Pathogen-associated molecular pattern
PD	Parkinson’s disease
PET	Positron emission tomography
PPARγ	Peroxisome proliferator-activated receptor-γ
PRR	Pattern recognition receptor
p-Tau	Hyperphosphorylated tau
ROS	Reactive oxygen species
SNpc	Substantia nigra pars compacta
TJ	Tight junction
TLR	Toll-like receptor
TSPO	Translocation protein
VNS	Vagus nerve stimulation.