Potential applications of electrical impedance techniques in female mammalian reproduction

Theriogenology
P Rezác

Abstract

The measurement of electrical impedance is one of many methods that can be used for monitoring various reproductive events in female mammals. This paper summarizes the key findings in this research area that have been achieved during the past four decades. The electrical impedance in the vagina, vaginal vestibule and vulva during the estrous/menstrual cycle shows significant changes that vary among these reproductive organs, different locations in these organs and mammalian species. The changes of vaginal and vulvar impedance during periestrus are temporarily associated with the preovulatory luteinizing hormone (LH) peak and are significantly correlated with systemic levels of estradiol and progesterone. In humans, significant impedance changes during the menstrual cycle and their close association with the LH peak and ovulation have been found not only in the vagina, but also in the tongue. Findings of a number of studies suggest the possibility of using vaginal, vestibular and vulvar impedance to predict and confirm the fertile period of the estrous/menstrual cycle. There is some evidence that vulvar and cervical impedance may be a reliable indicator of impending parturition. Results in several studies also indicate the possi...Continue Reading

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Citations

Dec 16, 2011·Animal Reproduction Science·A Dal BoscoC Castellini
Sep 8, 2009·Trends in Biotechnology·Geertruida A Posthuma-TrumpieWillem J H van Berkel
Oct 1, 2016·Journal of Developmental Origins of Health and Disease·H DickinsonJ L Morrison
Jan 10, 2018·The Journal of Reproduction and Development·Kohta KikuchiMasashi Takahashi
Oct 18, 2018·Human Reproduction·Hitomi NakamuraTadashi Kimura

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