FIGURE 2.
Effect of inducible nitric oxide synthase (iNOS) inhibitors on systemic nitrate + nitrite (NOx) levels and oxidant stress in MRL/lpr mice. Either a specific iNOS inhibitor (l-N6-iminoethyl-lysine [l-NIL], n = 4), a nonspecific iNOS inhibitor (NG-monomethyl l-arginine [l-NMMA], n = 6), or distilled water (n = 6) was administered for 2 weeks to MRL/lpr mice with active disease. Urine NOx and 8-isoprostane F2α (8-iso-PGF2α) levels were significantly lower in the combined treatment groups when compared with the control group. *p < .05.