Fig. 1

Staining of rat placental cells for GnRH and kisspeptin. Cultures of placental cells from rats at 18 weeks of gestation were immunostained using anti-kisspeptin (Kp-10) (b) and anti-GnRH (c) antibodies. The negative control is shown in (a) (control). The colors were developed by streptavidin-biotinylated horseradish peroxidase. Magnification, ×20