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Table 1 ROS scavenging ability of xanthones III and V

From: Antioxidant properties of xanthones from Calophyllum brasiliense: prevention of oxidative damage induced by FeSO4

  O2 •— OH ONOO
Xanthone III 336.5 ± 8.9 1.82 ± 0.06 63.6 ± 11.6
Xanthone V 262.4 ± 7.7 0.07 ± 0.003 29.6 ± 6.8
  1. Values are expressed as IC50 (μM).
  2. Data are mean ± S.E.M. of six experiments per group. OH: hydroxyl radicals, O2 : superoxide anion, ONOO : peroxynitrite anion.