AAVs	Adeno-associated viruses
AD	Alzheimer’s disease
ASO	Antisense oligonucleotide
BBB	Blood–brain barrier
BMSCs	Bone marrow-derived mesenchymal stem cells
BPD	Bronchopulmonary dysplasia
CSF	Cerebrospinal fluid
CNS	Central nervous system
DPSCs	Deciduous dental pulp stem cells
EVs	Extracellular vesicles
FUSIN	Focused ultrasound-mediated nasal drug delivery
GLP-1	Glucagon-like peptide-1
IGF-1	Insulin-like growth factor 1
hNSCs	Human neural stem cells
LIF	Leukemia inhibitory factor
MSC	Mesenchymal stem cell
NGF	Nerve growth factor
OMPCs	Olfactory mucosal progenitor cells
PD	Parkinson’s disease
PEG	Polyethylene glycol
PTD	Protein transduction domain
SAD	Social anxiety disorder
SCI	Spinal cord injury
TBI	Traumatic brain injury
ZO-1	Zonula occludens-1