SOD	Superoxide dismutase
1,25(OH)2D3	1,25-dihydroxyvitamin D3
11c-RAL	11-cis-retinal; ADHs, alcohol dehydrogenases
ADHs	Alcohol dehydrogenases
ALDHs	Aldehyde dehydrogenases
APCs	Antigen-presenting cells
ATRA	All-trans retinoic acid
BCO1	β,β-carotene-15,15-dioxygenase
CRABPs	Cellular retinoic acid-binding proteins
CRALBP	Cellular retinaldehyde-binding protein
CRBP	Intracellular retinol-binding protein
CRBP1	Cellular retinol-binding protein 1
CRBP2	Cellular retinol-binding protein 2
DBP	Vitamin D-binding protein
DNA	Deoxyribonucleic acid
E2	Estradiol
ER	Endoplasmic reticulum
GSH	Glutathione
Ig	Immunoglobulin
ILCs	Innate lymphoid cells
IRFs	Interferon Regulatory Factors
LDL	Low-density lipoprotein
LRAT	Lecithin:retinol acyltransferase
NADPH	Nicotinamide adenine dinucleotide phosphate
Pitx2 i	RA/RAR-regulated transcription factor
RA	All-trans-retinoic acid
RAL	All-trans-retinaldehyde
RALDHs	Retinaldehyde dehydrogenases
RAR	Retinoic acid receptors
RBP	Serum retinol-binding protein
REHs	Retinyl ester hydrolases
REs	Retinyl esters
RESs	Retinyl esterases
ROL	All-trans-retinol
RPE	Retinal pigment epithelium
RPE65	Retinoid isomerase
RXR	Retinoid X receptors
SCARB1	Scavenger receptor class B, type I
SDRs	Short-chain dehydrogenases/reductases
STRA6	Retinoic acid 6
Th	T helper cells
Treg	regulatory T cells
TTR	Transthyretin
VDR	Vitamin D receptor
VDRE	Vitamin D response element
VLDL	Very low-density lipoprotein
βC	β,β-carotene