TABLE 1.

Antagonist and Concentration	EROD Activity (Percentage of 10 nM TCDD)
	HaCaT	HepG2	T84
	%	%	%
CH223191
1 μM	33 ± 6	58 ± 16	30 ± 8
CHD-5
1 μM	27 ± 6	58 ± 13	29 ± 8
10 μM	21 ± 11	28 ± 9	28 ± 9
CHD-7
1 μM	104 ± 10*†	82 ± 9‡	94 ± 9*†
10 μM	96 ± 4	98 ± 16‡	68 ± 3
CHD-8
1 μM	113 ± 4*†	68 ± 7	103 + 9*†
10 μM	109 ± 9	79 ± 7	87 ± 2*†
CHD-11
1 μM	36 ± 10	33 ± 10	32 ± 7
10 μM	23 ± 3	29 ± 9	28 ± 9
CHD-12
1 μM	29 ± 7	34 + 8	31 ± 8
10 μM	21 ± 2	29 + 9	24 ± 10

^* Statistically different (P < 0.05) from CH223191.

^† Statistically different (P < 0.05) from CHD-5, CHD-11, and CHD-12 at the corresponding concentrations.

^‡ Statistically different (P < 0.05) from CHD-11 and CHD-12 at the corresponding concentrations.