NFE2L2 and lung disorder: For the present study we a priori selected the following markers, on the basis of experimental evidence in lung diseases, as biomarkers of oxidative stress: TBARS, GSH, PSH, Nrf2, Hcy, Cys, and ADMA; or inflammation: kynurenine (Kyn), tryptophan (Trp) and Kyn/Trp ratio.