Table 6.

Apoptotic levels for low-dose alpha particles, high-dose uranium exposure, and a combination of these

NILUH †	NIL †	NUH †
0.409 ± 0.081	−0.163 ± 0.047	0.240 ± 0.049
	P = 1.26×10−7*a	P = 0.0396*b

Mean normalized net numbers of apoptotic signals (N ± SE) for the C, I_LU_H, I_L and U_H groups in three sets of experiments in our previous study [34]. The total number of embryos was 117 in all groups. ^aP values obtained by comparing IU and I groups using Student's t-test. ^bP values obtained by comparing IU and U groups using Student's t-test. *Cases with P ≤ 0.05 were considered statistically significant.