Since PDTC has both antioxidant and metal-ion chelating activities , we tested the effects of N-acetyl-L-cysteine ( NAC ) ( antioxidant ) or o-phenanthroline ( OP ) ( metal-ion chelator ) on the induction of apoptosis .
since pdtc has both antioxidant and metal-ion chelating activities , we tested the effects of n-acetyl-l-cysteine ( nac ) ( antioxidant ) or o-phenanthroline ( op ) ( metal-ion chelator ) on the induction of apoptosis .
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