Table 1.

Specific activities of TrxR, GPx, and Cat enzymes in the given period, after incubation of A549 and K562 cells, with IC₅₀ values of metal complexes.

A549			K562
		U/mg protein			U/mg protein
TrxR	Control C1 C2 C3	0.5080ax  ± (0.00458)y  0.4740a  ± (0.00529) 0.2600b  ± (0.01114) 0.2960b  ± (0.00557)	TrxR	Control C1 C2 C3	1.0640a  ± (0.00529) 0.5867d  ± (0.01155) 0.7200b  ± (0.05568) 0.6070c  ± (0.02000)
GPx	Control C1 C2 C3	0.1520a  ± (0.00265) 0.0680c  ± (0.00854)  0.1067b  ± (0.00351) 0.0460d  ± (0.00361)	GPx	Control C1 C2 C3	0.2367a  ± (0.00577) 0.0200b  ± (0.00000) 0.0000b  ± (0.00000) 0.0000b  ± (0.00000)
Cat	Control C1 C2 C3	854.73a  ± (0.00008) 281.68c  ± (0.00005) 530.41b  ± (0.00002) 252.36d  ± (0.00002)	Cat	Control C1 C2 C3	354.9300a  ± (3.27432) 131.8900b  ± (1.47401) 121.9100c  ± (1.80602) 108.8163d  ± (2.78970)

Among groups ^xmean value (n = 3), ^ystandard deviation, ^a–dSignificant differences (1: P ≤ 0.05; 2: P ≤ 0.01; 3: P ≤ 0.001) in a row.