4-HNE	4-hydroxy-2-nonenal.
8-OHdG	8-hydroxy-2’-deoxyguanosine.
8-iso-PGF2a	8-iso-prostaglandin F2a.
Ado	adenosine
AGE	advanced glycated end product.
AOPP	advanced oxidation protein products.
ATP	adenosine triphosphate.
BPD	bronchopulmonary dysplasia.
CAT	catalase.
FR	free radicals.
GSH/GSSG	glutathione/glutathione disulfide.
GPX	glutathione peroxidase.
H2O2	hydrogen peroxide.
Hx	hypoxanthine.
IsoPs	isoprostanes.
IUGR	intrauterine growth restriction.
IVH	intraventricular hemorrhage.
MDA	malondialdehyde.
MPO	myeloperoxidase.
NEC	necrotizing enterocolitis.
NeuroPr	neuroprostanes.
NPBI	non-protein-bound iron.
OS	oxidative stress.
OSI	oxidative stress index.
PDA	patent ductus arteriosus.
PROM	premature rupture of membranes.
RDS	respiratory distress syndrome.
ROP	retinopathy of prematurity.
SGA	small for gestational age.
SOD	superoxide dismutase.
TAC	total antioxidant capacity.
TOS	total antioxidant status.
TH	total hydroperoxide.
UA	uric acid.
Xa	xanthine.
XO	xanthine oxidase.