mRNA expression of the Nrf2 targets Hmox1 and Nqo1 normalized to G6pdx expression. BMDCs were treated for 60 min with 500 nM cEC or DPPC followed by R837 stimulation (5 μg/ml) for 3 h. Data (mean ± SD) are representative of three independent experiments. *P < 0.05; **P < 0.01; unpaired two-tailed t-test. 