Endocrine characterization of the menstrual cycle of the stumptailed monkey (Macaca arctoides)
- PMID: 403966
Endocrine characterization of the menstrual cycle of the stumptailed monkey (Macaca arctoides)
Abstract
PIP: The endocrine characterization of the menstrual cycle of the stumptailed monkey was determined and compared with that of the rhesus monkey. Serum concentrations of luteinizing hormone (LH), estradiol-17beta, and progesterone were determined on a daily basis from 5 monkeys. Differences included: 1) basal and peak concentrations of LH 40% of those in rhesus monkeys, 2) an estraidol peak occurring on the day proceding LH peak, 3) an estradiol peak on the 3rd day after LH surge and representing the highest mean estradiol value during the luteal phase, and 4) absence of the usual periovulatory decline in serum progesterone. Further experimentation is needed to understand the importance of these differences.
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