Effects of pre-, co- and post-treatment of lysine on the gene expression of SOD, CAT, GPx, GST, GR, Nrf2 and Keap1b of fish primary enterocytes cells.

<p>The data represent the means±S.E. of four replicates. # indicated significant difference compared with control values, and *<i>P</i><0.05, **<i>P</i><0.01, and ***<i>P</i><0.001 indicated significant difference from the 6 mg L^-1 Cu alone group, with Student’s t-test. SOD, copper/zinc superoxide dismutase; CAT, catalase; GPx, glutathione peroxidase; GST, glutathione-S-transferase; GR, glutathione reducase enzymes; Nrf2, NF-E2-related factor-2; Keap1b, Kelch-like ECH-associated protein 1b.