Table 1.

Cell Counts for Immunofluorescence Assays

Transcription Factor	Number of Positive Somatotropes (% of All Somatotropes)	Number of Positive Lactotropes (% of All Lactotropes)
Nup1	176 (88)	18 (9)
Rxrg	183 (91.5)	11 (5.5)
Pparg	148 (74)	96 (48)
Nr4a2	4 (2)	186 (93)
Pou4f1	9 (4.5)	193 (96.5)
Tbx19	174 (87)	188 (94)

Cell counts for immunofluorescence microscopy analysis of selected transcription factors. Columns list the number of GH⁺ or PRL⁺ cells examined (200 GH⁺ and 200 PRL⁺ cells counted per study) expressing the given transcription factor, as well as the percentage of total somatotropes/lactotropes observed expressing the protein in parentheses.