Copper can both mediate and prevent oxidative damage.
Gutteridge
J M
JM
D000818:Animals; D003300:Copper / Q000097:blood*; D006801:Humans; D006878:Hydroxides / Q000097:blood; D017665:Hydroxyl Radical; D010084:Oxidation-Reduction; D013481:Superoxides / Q000097:blood
D006878:Hydroxides; D013481:Superoxides; D017665:Hydroxyl Radical; D003300:Copper