“Exposure of Nrf2(+/+) fibroblasts, … chemopreventive agent sulforaphane Sul) … isothiocyanate , caused an induction of between 2- and 10-fold in the levels of mRNA for glutamate-cysteine ligase catalytic (Gclc) … oxidoreductase-1 (Nqo1); this was accompanied by an increase in total glutathione of between 1.5- and 1.9-fold.”