Effect of melatonin on in vitro gonadotropins and prolactin release from pituitary LHRH stimulated, and median eminence and on ovarian response to hCG in middle-aged female rats.
: The possible influence of exogenous melatonin upon the reproductive axis of middle-aged (15-19-month-old) female rats showing irregular estrous cycle length was analyzed. In vitro pituitary and median eminence (ME) luteinizing hormone (LH), follicle stimulating hormone (FSH) and prolactin release and responsiveness to luteinizing horm.....