reactive oxygen species	(ROS)
heme oxygenase-1	(HO-1)
electromagnetic fields	(EMFs)
extremely low frequencies	(ELFs)
matrix metalloprotease	(MMP)9
mammalian target of rapamycin	(mTOR)
phosphoinositide 3-kinases/protein kinase B	(PI3K/Akt)
extracellular signal-regulated kinases	(ERK)
nitric oxide synthetase	(NOS)
catalase	(CAT)
cytochrome	(CYP) 450
lipopolysaccharides	(LPS)
nuclear factor erythroid 2-related factor 2	(Nrf2)
NAD-dependent deacetylase sirtuin-1	(SIRT1)
intracellular reduced glutathione	(GSH)
oxidized glutathione	(GSSG)
glutathione peroxidase	(GPx)
glutathione reductase	(GR)