Figure 11: Effect of fisetin and MCN-fisetin on the production of nitric oxide in lung tissue. 0.1 ml of sample was added to 0.1 ml of Griess reagent, incubated and absorbance measured at 540 nm in a microplate reader (Thermo Fisher). Concentration of NO was determined from a standard curve. (*P<0.05 versus Control; *P<0.05 versus Ova).