Fig. 5

Effects of lipopolysaccharide (LPS), hydrogen peroxide (H2O2) and the combination effect of LPS and H2O2 on the production of NO by the RAW 264.7 macrophage cells. Untreated cells were used as the control. Data expressed as mean ± S.D (n = 3). The different alphabets denote significant difference (p < 0.05) from the corresponding value for control