Fig 1. OXTR ligand binding in the primordial tooth of a P0 male mouse.

Pseudo-color composite (OXTR in red, cresyl violet counterstain in gray) (A), followed by cresyl violet counterstain (B), with black arrows indicating region of interest. OXTR ligand binding is indicated by white arrows in the 0 nM OXT competition (C), followed by 1000 nM OXT competing with OVTA radioligand to reduce the signal (D). OXTR ligand binding was not present in OXTR KO mice (E), followed by the post-processed cresyl violet tissue of the OXTR KO (F).