Premium
Changes in Electrical Impedance of the Vaginal Medium During the Menstrual Cycle of Female Rhesus Monkeys (Macaca mulatto)
Author(s) -
Fischer L.,
Germain G.,
Florence G.,
Milhaud C.
Publication year - 1990
Publication title -
journal of medical primatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 42
eISSN - 1600-0684
pISSN - 0047-2565
DOI - 10.1111/j.1600-0684.1990.tb00464.x
Subject(s) - luteal phase , menstrual cycle , follicular phase , menstruation , endocrinology , medicine , estrous cycle , physiology , biology , chemistry , hormone
Changes in electrical impedance of the vaginal medium during the menstrual cycle were recorded in female Rhesus monkeys using electrical probe and were correlated with estradiol–17β and progesterone plasma concentrations. A gradual decrease in impedance was observed during the follicular phase, the lowest values being observed between days 12–17 of the cycle. Impedance increased again during the first third of the luteal phase until day 21. The reversal of the impedance gradient's sign was nearly concomitant with the appearance of a detectable plasma progesterone concentration. These results support the use of vaginal impedance measurements as a help for the diagnosis of the periovulatory time in the female Rhesus monkey.