Table 5. Effects of DMP Exposure on Cell Apoptosis of Ovarian Cells in Female C57 Mice^a.

Treatment	Apoptosis, %
	20 Days	40 Days
Control	1.43 ± 0.05	14.45 ± 0.89
DMP, g/kg
0.5	0.88 ± 0.07b	12.67 ± 1.06b
1	1.57 ± 0.05b,c	17.31 ± 1.61b,c
2	1.60 ± 0.17b,c	16.18 ± 0.81b,c

^a Data presented as mean ± SD; N = 5 for each group. The effect of DMP was analyzed by one-way analysis of variance (ANOVA) and post hoc testing by the Games-Howell test (for heterogeneous group variances). Cell apoptosis was measured with PI nuclear staining and flow cytometry.

^b Significantly different from control (P < 0.05).

^c Significantly different from 0.5 g/kg/d (P <0.05).