Lipid Peroxidation and Antioxidant Activities of the Aqueous Rhizome Extract of Rheum officinale Baillon

Figure 3

Effects of Rheum rhizome extract on production of intracellular reactive oxygen species (a) and superoxide anion (b) in 0.5 mM tert-butyl hydroperoxide- (t-BHP-) induced RAW264.7 macrophages. The value of each bar represents the mean ± standard deviation (SD) (). Means sharing the same letter are not significantly different at the 5% level.

(a)

(b)