Figure 5: Representative images of immunoperoxidase localization of AQP3 in 2 μm semithin paraffin sections of skin from embryonic day 18 rat pups exposed to antenatal corticosteroids (ANSs; , ) and from unexposed controls (Control; , ). Anti-AQP3 labels the plasma membrane of epidermal keratinocytes. The AQP3 labeling intensity is higher in ANSs-exposed rat pups than in controls. Bar = 10 μm.