“…Cadmium exposure markedly decreased the activities of superoxide dismutase and catalase. This is consistent with the most recent finding of others [ [64] , [65] , [66] , [67] ]. Cadmium being a Fenton metal [ 7 , 8 ], may have bound to these enzymes, interacted with the covalent bonds of their amino acids residues and thus abruptly inhibited their activities.…”