Short term changes in melatonin and cortisol serum levels after a single administration of estrogen to menopausal women.
OBJECTIVES: It has been well-documented that serum melatonin levels are insensitive to estrous or menstrual ovarian steroid variations in the female rat or the human. However, a negative coupling has been already demonstrated between the nocturnal serum melatonin peak and serum E2 concentration during the late premenopausal period in th.....