Release of prostaglandin F-2alpha during foaling in mares.
The concentrations of PGF-2alpha in the peripheral blood of five foaling mares were measured by radioimmunoassay. Low levels of PGF-2alpha were detected as early as 1 week before foaling in two of the mares. These levels increased steadily, reaching a peak (1-74 +/- 0-44 ng/ml) during fetal expulsion. A relatively high PGF-2alpha level was found in samples collected 60 min after foaling.
D000818:Animals; D005260:Female; D006736:Horses / Q000502:physiology*; D007743:Labor, Obstetric; D011247:Pregnancy; D011460:Prostaglandins F / Q000378:metabolism*; D012636:Secretory Rate; D013997:Time Factors; D014590:Uterine Contraction
D011460:Prostaglandins F