Table 2.

Effects of TCE exposure on apoptosis in the cardiac cushions.^a

	Cushion apoptosis (% TUNEL-positive cells)
TCE/egg (nmol)	OFT	AVC
0	0.529 ± 0.29	0.326 ± 0.15
0.2	1.721 ± 0.61	0.192 ± 0.19
4	1.211 ± 0.39	0.214 ± 0.10
200	2.130 ± 0.55*	0.392 ± 0.21

Values shown are mean ± SE.

^aExperiments were performed in duplicate; n = 5–10 embryos per dose.

^*p < 0.01 versus 0 nmol TCE/egg (Mann-Whitney U-test).