Fig. 5
From: Ovarian hormones modulate multidrug resistance transporters in the ovary
MDR-1 and BCRP immunolocalization is abundant in preovulatory follicles Here, immunolocalization was performed on sections of fixed paraffin embedded ovaries of untreated mice. Primary, preantral (secondary), and antral follicles were selected in particular because they reflect growing follicles that are undergoing proliferation and are under the control of Follicles Stimulation Hormone (FSH), which drives estrogen production in the granulosa cells