Fig. 3

Cycle lengths before, during, and after exposure, obtained from the mixed model SAS analysis. The cycle during exposure was significantly longer than the cycles before exposure. The cycle immediately after exposure was significantly shorter than both the cycles before exposure and the exposed cycle. No effects were observed in the vehicle exposed animals. Values are given as mixed model estimate average ± SEM. (**: p = 0.001 compared to the cycle before to exposure; ##: p < 0.001 compared to the exposed cycle, n = 20–23)