<p>Dispersed anterior pituitary cells from rats euthanized at diestrus I or proestrus were immunostained for both mERα and PRL or GH and analyzed by flow cytometry. Each column represents the mean ± SE of anterior pituitary cells (A), lactotropes (B) or somatotropes (C) expressing mERα (n = 3–4 animals per group). *p<0.05, **p<0.01 vs diestrus I, Student’s <i>t</i> test.</p