Effects of various progestational preparations on gonadotropin secretion in ovariectomized immature female rats.


26-day old female rats were ovariectomized and treated with 1 of 4 progestational steroids twice daily for 5 days. Follicle stimulating ho rmone (FSH) and luteinizing hormone (LH) levels were determined by radioimmunoassay to study the effect of these progesterones on FSH and LH. Progesterone and megestrol acetate did not significantly alter LH, FSH… (More)