It suggests that quercetin might decrease the active oxygen generation of leukocyte,reduce the superoxide anion radical formation by inhibiting the xanthine oxidase and / or scavenge the active oxygen directly in the same time in both systems.

• 提示槲皮素既可抑制白细胞吞噬产生的活性氧，又可减少黄嘌呤－黄嘌呤氧化酶系的O－2形成，或兼有直接清除活性氧的作用