Figure 7: The level of PO analyzed in the plasma samples from the normal and arthritic groups. The arthritic control rats showed a significant increase in the levels of peroxide (* ) compared to the normal control group. The indomethacin- and NHAG-treated arthritic rats showed a significant reduction in the levels of peroxide (δ and ) compared to the arthritic control group, respectively. Within the treatment groups, no significant difference was found.