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- Bergmaier, C., et al. Show all 7 Authors
- Theriogenology 2012 v.78 no.4 pp. 759-767
- blood; cortisol; electrocardiography; fetus; foaling; foals; heart rate; mares; neonates; placenta; pregnancy; pregnenolone; progesterone; saliva
- ... The mechanisms leading to parturition in the horse in many aspects differ from those in other species. Pregnancy is maintained not by progesterone but by 5α-pregnanes and the progestin precursor pregnenolone originates from the fetus. As parturition approaches, the fetal adrenal switches from pregnenolone to cortisol synthesis but it is not known whether cortisol crosses the placenta. We hypothesi ...