Figure 9. the effect of oMWCNTs (20 mg/kg.bw) on the progesterone (A)/or estradiol (B) in the mice at GD 7 days, 14days, and 18 days.

(A), *p < 0.05 compared with the control groups; ^&p < 0.05, compared with the control group of GD seven days. (B), *p < 0.05 compared with the control groups, ^&p < 0.05 compared with the control group of GD seven days and the control group of parturition (n = 5–6, all data represent means + s.e.m, all data were statistical analysis by ANOVA).