Figure 3. Thyroid morphology and differentiation in Dicer cKO E15.5 embroys and newborn mice.

(A) Hematoxylin and eosin (H&E) staining and immunohistochemistry for Pax8, Nkx2.1 and Tg of Ctr, Het and cKO mice embryos at E15.5 (100× magnification). (B) The same analysis as in A was performed on thyroids of newborn mice (200× and 400× magnification for H&E staining and immunohistochemistry, respectively). In both panels Ctr denotes Pax8^Cre/+ mice, used as controls.