Contractions in the Isolated Uterus of a Rat Model of Polycystic Ovary Syndrome Compared to Controls in Adulthood

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AuthorMaryam Sajadien
AuthorMahsa Noroozzadehen
AuthorFatemeh Bagheripouren
AuthorFahimeh Ramezani Tehranien
Issued Date2018-04-30en
AbstractBackground: Polycystic ovary syndrome (PCOS) is one of the most common endocrine disorders in women during the reproductive age. Considering disorders reported in women with PCOS, e.g. infertility, pregnancy complications (premature delivery, caesarean section and spontaneous miscarriages), and hormonal disorders, we hypothesized that uterine contractions in PCOS rats may be different from controls. We aimed to compare uterine contractions in PCOS rats with controls. Methods: Rats in the experimental group were subcutaneously injected with 5 mg of free testosterone on gestational day 20, while controls received solvent. The contractions of isolated uterus in offspring of both groups were recorded by the power lab system, after exposure to carbachol and oxytocin. Two-way analysis of variance was used to compare results between 2 groups. Results: PCOS rats showed more irregular uterine contractions compared to controls. After exposure to carbachol, frequency, and resting tone in the PCOS rats were significantly increased compared to controls (P = 0.004, P = 0.02, respectively). After exposure to oxytocin, the frequency, resting tone and amplitude of rhythmic contractions did not differ between the 2 groups. Conclusions: Our study indicates irregular uterine contractions and different mechanical responses of isolated uterus in PCOS rats compared to controls.en
DOIhttps://doi.org/10.5812/ijem.63135en
KeywordPolycystic Ovary Syndromeen
KeywordRat Modelen
KeywordUterine Contractionsen
PublisherBrieflandsen
TitleContractions in the Isolated Uterus of a Rat Model of Polycystic Ovary Syndrome Compared to Controls in Adulthooden
TypeResearch Articleen

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International Journal of Endocrinology and Metabolism