Fig. 4.
Nitrite and nitrate levels after nitrite therapy. Male mice were exposed to Cl2 600 ppm, 45 min and then brought back to room air and 30 min thereafter received saline or nitrite 10 mg/kg by IM injection. Plasma nitrite (A) and nitrate (B), lung nitrite (C) and nitrate (D), and BALF nitrite (E) and nitrate (F) were measured after 6 h. Data shown are means ± SE, n = 5–9. *P < 0.05 relative to air by for A and *P < 0.05 or **P < 0.01 relative to air and Cl2 alone for E and F by 1-way ANOVA with Tukey's posttest.