Table 3. Percentage of MDA-MB 231 Cells and HS-5 Cells with Lipid Peroxidation after Treatment for 2 and 4 h with Complexes C1–C4 at Concentrations of 0.1, 0.5, and 1 μM, Respectively^a.

cells with lipid peroxidation (%)
		MDA-MB 231		HS-5
complex	concentration (μM)	2 h	4 h	2 h	4 h
C1	0.1	0.4 ± 0.1*	0.2 ± 0.0	0.5 ± 0.3	0.4 ± 0.2
	0.5	0.9 ± 0.4*	0.9 ± 0.5*	1.1 ± 0.5*	0.5 ± 0.2
	1	1.4 ± 0.9*	1.1 ± 0.4*	0.6 ± 0.2	0.6 ± 0.2
C2	0.1	0.2 ± 0.0	0.3 ± 0.1	0.5 ± 0.3	0.5 ± 0.3
	0.5	1.0 ± 0.5*	0.7 ± 0.2*	0.7 ± 0.5**	0.9 ± 0.5*
	1	1.1 ± 0.6*	1.3 ± 0.7*	1.3 ± 0.6	0.5 ± 0.1*
C3	0.1	0.4 ± 0.2	0.3 ± 0.1	0.5 ± 0.2*	0.5 ± 0.3
	0.5	0.6 ± 0.0*	0.9 ± 0.2*	0.5 ± 0.3*	0.3 ± 0.1
	1	1.2 ± 0.3*	1.8 ± 1.0*	0.7 ± 0.3	0.4 ± 0.1*
C4	0.1	0.5 ± 0.3	0.3 ± 0.2	0.5 ± 0.1**	0.5 ± 0.3
	0.5	1.3 ± 0.6*	2.2 ± 1.0*	0.6 ± 0.2**	0.6 ± 0.2*
	1	1.3 ± 0.1*	3.5 ± 1.9*	0.9 ± 0.4	0.5 ± 0.1
untreated control		0.1 ± 0.0	0.1 ± 0.1	0.1 ± 0.0	0.1 ± 0.0

^aData are expressed as mean ± SE of at least four independent experiments. The asterisks (*p < 0.05 and **p < 0.005 against untreated control) represent statistical significance.