These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Plasma steroid hormone concentrations and their relationships in Suffolk ewes during gestation and parturition.
    Author: Miura H, Yamazaki T, Kikuchi M, Sakaguchi M.
    Journal: Anim Sci J; 2019 Nov; 90(11):1426-1431. PubMed ID: 31486265.
    Abstract:
    In this study, we measured plasma concentrations of progesterone, pregnenolone, estradiol, estrone, estrone sulfate, and cortisol and analyzed the correlations between these hormones during gestation in 13 Suffolk ewes, the main breed in Japan. Progesterone increased during gestation and decreased a few days before parturition; however, this pattern was different in samples with high progesterone concentrations (P4 spike samples). This P4 spike was associated with a high pregnenolone concentration. Apart from the P4 spike, the progesterone change was similar to that in other sheep breeds. Pregnenolone increased during gestation and decreased after parturition. A significant correlation between progesterone and pregnenolone was observed a few days before parturition. Estrone sulfate and estradiol concentrations increased during gestation, but estrone did not. They increased shortly before parturition, and then decreased immediately after parturition. At parturition, the correlation between estrone and estrone sulfate was significantly stronger. Moreover, a strong correlation between estrone sulfate and estradiol was observed after parturition. Cortisol did not change during gestation and increased shortly before parturition. The results showed steroid hormone dynamics in normal pregnant Suffolk ewes, which were mostly in line with those of other sheep breeds. It should be noted that high progesterone concentrations altered the typical patterns.
    [Abstract] [Full Text] [Related] [New Search]