Project description:Changes in gene expression in the infundibulum after a prolonged prolactin treatment (3 μg/h/mouse, 7 days, subcutaneous Alzet osmotic minipump) showed prolactin down regulation of genes necessary for cilium development and function. Collectively, these results suggest that prolactin regulates cyclic changes in ciliated cell function in the infundibulum. They also suggest an additional mechanism whereby prolonged prolactin elevation would negatively impact fertility.