AA	Amino Acids
ACE	Angiotensin-converting enzyme
ACE2	Angiotensin-converting enzyme 2
ADAM17	Disintegrin and metalloproteinase 17 (Alias: TACE)
AMPK	Adenosine monophosphate-activated protein kinase)
Ang II	Angiotensin II (Alias: Ang 1–8)
Ang (1–10)	Angiotensin I
AP1	Activator protein 1 transcription factor
AQP1	Aquaporin 1, a water channel protein
AT1R	Angiotensin II Type 1 Receptor
APJ	Apelin receptor
ARDS	Acute Respiratory Distress Syndrome
ASCT2	Alanine, serine, cysteine-preferring transporter 2 (gene SLC1A5)
AVP	Arginin vasopressin
B0AT1	B degrees amino acid transporter 1 (gene SLC6A19)
CALHM1/3	Calcium homeostasis modulator 1 and 3
CAM	Calmodulin
CAMKII	CaM-dependent kinase
CAP1	Channel-activating protease
CatA	Cathepsin A
CK2	Casein kinase 2
CNS	Central nervous system
COX2	Cyclooxygenase 2
COVID-19	Coronavirus Disease of 2019
CRP	C-reactive protein
CT	Chorda tympani
DAG	Diacylglycerol
ECM	Extracellular matrix
EDTA	Ethylenediaminetetraacetic acid
ENaC	Epithelial sodium channel
ER	Endoplasmic reticulum
Gαq/11	Guanine nucleotide binding protein (G protein), alpha 11 (Gq class)
GABA	Gamma-aminobutyric acid
GDP	Guanosine diphosphate
GI	Gastrointestinal tract
Glu	Glucose
GLUT1	Glucose transporter 1
GTP	Guanosine triphosphate
HAT	Transmembrane serine protease 11D (Alias: TMPRSS11D)
H1N1	Influenza A
HCoV-NL63	Human coronavirus NL63
HIF1	Hypoxia Induced Transcription Factor
HMOX1	Heme Oxygenase-1
HPA	Hypothalamic-pituitary-adrenal
iAA	Imino acids, e.g., proline
IP3	Inositol 3 phosphate
LDH	Lactate dehydrogenase (Alias: Lactic acid dehydrogenase)
LPS	Lipopolysaccharide
MAS	MAS1 proto-oncogene, G protein-coupled receptor
mTORC1	Mammalian target of rapamycin complex 1 (Alias: Mechanistic target of rapamycin complex 1)
nAA	Neutral amino acids
NFAT5	Nuclear Factor of Activated T cells (Alias: TonEBP, tonicity-responsive enhancer binding protein)
NHE3	Sodium–hydrogen exchanger 3
NO/iNOS	Nitric Oxide
ORF8	Envelope glycoprotein B (Gene: ORF8)
PAI-1	Plasminogen Activator Inhibitor-1
PKC	Protein kinase C
PLC	Phospholipase C
RAS	Renin-Angiotensin System
RBD	Receptor binding domain
ROS	Reactive Oxygen Species
sACE2	Soluble angiotensin-converting enzyme 2
SARS-CoV	Severe Acute Respiratory Syndrome Coronavirus
SARS-CoV-2	Severe Acute Respiratory Syndrome Coronavirus 2
SGK1.1	Glucocorticoid-induced kinase 1
SGLT1	Sodium-dependent Glucose Transporter 1
SIT1	Sodium/Imino-acid Transporter 1 (gene: SLC6A20)
SLC6A19	Solute Carrier Family 6 Member 19 (protein BoAT1)
TACE	Tumor Necrosis Factor-α Converting Enzyme (Alias: ADAM 17)
TAPI2	TNF Protease Inhibitor 2
TMEM27	Transmembrane protein 27 (Alias: Collectrin, Gene: CLTRN)
TMPRSS2	Transmembrane Serine Protease 2
VP	Vasopressin
vWF	von Willebrand factor
WT	Wild type