Immunohistochemical co-localization of Ptx1 (brown) and pituitary hormones or S-100 protein (blue) in rat pituitary. Ptxl was detected in the nuclei of intermediate lobe (IL) and anterior lobe (AL)
(a), and it was expressed in the nuclei of cells containing POMC (b), ACTH (c), GH (d), PRL (e), TSHβ (f), α-SU (g), FSHβ (h), and S-100 protein (i). ×600(a-i)