ACE2	Angiotensin-converting enzyme 2
ADHD	Attention Deficit Hyperactivity Disorder
BBB	Blood–brain barrier
BDNF	Brain-derived neurotrophic factor
CNS	Central nervous system
CRH	Corticotropin-releasing hormone
DAMPs	Damage-associated molecular patterns
HPA	Hypothalamic–pituitary–adrenal
MCAS	Mast Cell Activation Syndrome
MCI	Mild cognitive impairment
mtDNA	Mitochondrial DNA
MIS	Multisystem Inflammatory Syndrome
NT	Neurotensin
PANS	Pediatric Acute Neuropsychiatric Syndrome
PAMPs	Pathogen-associated molecular patterns
PAF	Platelet-activating factor
SP	Substance P
TLR	Toll-like receptor