ActRIIA	activin type IIA receptor
ActRIB	activin type IIB receptors
AD	Alzheimer’s disease
ALK	activin-like kinase
ARE	antioxidant responsive element
BBB	blood–brain barrier
BMP	Bone Morphogenetic Protein
BMPER	BMP-binding endothelial cell precursor-derived regulator
C/EBPα	CCAAT/enhancer-binding protein α
C/EBPδ	CCAAT/enhancer-binding protein delta
C/EBP-BS	C/EBP binding site
CX3CR1	fractalkine receptor
Cp	ceruloplasmin
DMT-1	divalent metal transporter-1
EGF	epidermal growth factor
EGFR	epidermal growth factor receptor
EPO	erythropoietin
ERE	estrogen response element
ERFE	Erythroferrone
ERK	extracellular signal–related kinase
FtH	ferritin heavy chain
FtL	ferritin light chain
FPN1	ferroportin
GISIS	glucose-stimulated insulin secretion
GPR30	G-coupled protein 30
GPx	glutathione peroxidase
HAMP	hepcidin antimicrobial peptide
Hb	hemoglobin
HFE	hemochromatosis protein
HGF	Hepatocyte growth factor
HIF-1	hypoxia-inducible factor 1
HIF-2	hypoxia-inducible factor 2
HISs	Hepcidin-inducing steroids
HJV	hemojuvelin
HO-1	heme oxygenase-1
ID	iron deficiency
IDA	iron deficiency anemia
IL	interleukin
IREG1	iron-regulated transporter 1
IRPs	Iron regulatory proteins
JAK	Janus Kinase
MAPK	mitogen-activated protein kinase
MetS	metabolic syndrome
miRNA	MicroRNA
NAFLD	non-alcoholic fatty liver disease
NFκB	Nuclear Factor kappa-light-chain-enhancer of activated B cells
Nrf2	nuclear factor erythroid 2-related factor 2
NTBI	non-transferrin bound iron
PD	Parkinson’s disease
PGRMC1	membrane-bound progesterone receptor
PHD	prolyl-hydroxylase
PI3-K	phosphatidylinositol 3-kinase
PKA	Protein Kinase A
PKC	Protein Kinase C
pVHL	von Hippel-Lindau protein
ROS	reactive oxygen species
R-SMADs	receptor-associated SMAD proteins
SFK	Src Family Kinase
SMAD	Sma and Mad Homologs
STAT	Signal Transducer and Activator of Transcription
T2D	Type 2 diabetes
Tf	transferrin
Tf-Fe	transferrin-bound iron
TFR1	transferrin receptor-1
TGF-β	transforming growth factor-β
TMPRSS6	transmembrane serine protease
TNF-α	tumor necrosis factor alpha