Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Reproductive serum hormone profiles of representative pre-menopausal and post-menopausal rhesus macaques. Plasma oestradiol, progesterone, LH, and FSH values were determined every two days for ~70 consecutive days. Shaded vertical bars represent days of menstruation. Note the marked attenuation of circulating oestradiol and progesterone levels after menopause, with a compensatory increase in LH and FSH levels. Figure adapted from Downs and Urbanski (13).
