Contribution of small and large Leydig cell aggregates to the total Leydig cell aggregate area per testis in e21.5 rat testes after <i>in utero</i> exposure to vehicle (control) or dibutyl phthalate (DBP-500 or 750 mg/kg), dexamethasone (Dex 100 µg/kg) or DBP-500+Dex from e13.5–e20.5 (full treatment window), e15.5–e18.5 (MPW window) or e19.5–e20.5 (late window).

<p>Values are Means ± SEM for 8–15 animals from 3–5 litters per treatment group. ***p<0.001, in comparison with controls; ^ap<0.001 in comparison with Dex group (except p<0.05 when Dex is compared with DBP-500 late window treatment); ^bp<0.05 in comparison with DBP-500 late window group; ^cp<0.001 in comparison with DBP-750 late window group; ^dp<0.01 in comparison with DBP-750 MPW window group; ^ep<0.05 in comparison with DBP-750 full treatment window group.