Fig. 2.

(a) Oxidized glutathione (GSSG) content, (b) GSSG/GSH ratio, (c) tumor necrosis factor (TNFα) levels in LPS-stimulated (1 μg/ml) culture supernatants, (d) catalase (CAT) activity and (e) malondialdehyde (MDA) levels in peritoneal leukocytes from adult female ICR (CD-1) mice supplemented for 5 weeks with cereal fractions (B, C, D or E) naturally rich in polyphenols. Bars show the mean ± SD of eight values, corresponding to the same number of experiments, being each value the mean of duplicate assays. *P < 0.05 **P < 0.01 and ***P < 0.001 versus the control group