ROS	Reactive oxygen species
DHE	Dihyroethidium
DCFH-DA	2′-7′-dichlorofluorescin diacetate
Nox4	NADPH (nicotinamide adenine dinucleotide phosphate) oxidase 4
NF-κB	Nuclear factor-kappa B
IκBα	NF-κB inhibitor
Nrf2	Nuclear factor erythroid 2-related factor 2
DMEM	Dulbecco`s modified Eagle`s medium
MDI	Methyl-isobuthylxanthine, dexamethasone, and insulin
HBSS	Hank`s balanced salt solution
PMSF	Phenylmethanesulfonyl fluoride
DMSO	Dimethylsulfoxide
RIPA	Radio-immunoprecipitation assay
BAY	Bay11-7082
DPAI	4′,6-diamidine-2-phenylindole
HO-1	Heme oxygenase-1
γ-GCSc	γ–Glutamylcysteine synthetase
GST	Glutathione S-transferase
SPSS	Statistical Package for Social Science