Prolactin Is a Strong Candidate for the Regulation of Luteal Steroidogenesis in Vizcachas (Lagostomus maximus)

Figure 5

Strongest colocalization of PRLR and LHR occurred in luteal cells of pregnant-ovulating vizcachas. Representative confocal photomicrographs of ovary sections of pregnant vizcachas stained for PRLR (red) and 3ß-HSD (green) using double-labeled immunofluorescence. Yellow stained represents coexpression of PRLR and LHR. Scale score: “+” = weak, “++” = moderate, and “+++” = strong. Scale bar: 50 μm. CL: corpus luteum; FL: follicle; O: nonovulated oocyte into a secondary corpus luteum. EP, MP, and TP stand for early pregnancy, midpregnancy, and term pregnancy, respectively.