To determine if the synthesis and/or secretion of prostaglandins PGF2α and PGE2 differed
during the late luteal phase of the cycle and early pregnancy, a combination of in vivo and in …

Abstract Treatment with prostaglandin (PG)-E 2 is clinically efficient for cervical priming. The
aim of this study was to evaluate the impact of PG-E 2 on the expression of the progesterone …

Two experiments were conducted to examine the temporal aspects of luteal resistance to the
luteolytic effect of prostaglandin (PG) F2α during early pregnancy. In Exp. 1, 14 pregnant …

Mature ewes (12 per group) were given prostaglandin F2α (PG; 10 mg intramuscularly) on
day 10 of an estrous cycle, to regress corpora lutea, or on day 16, after natural corpus …

Prostaglandins (PGs) play a pivotal role in the initiation and progression of term and preterm
labor. Uterine activity is stimulated primarily by PGE2 and PGF2α acting on prostaglandin E …

Prostaglandins (PGs) are produced by a variety of uteroplacental tissues during pregnancy
and are released into the fetal fluid sacs and both the uterine and umbilical circulations …

Pregnant (N= 10) and non-pregnant (N= 10) ewes were bled every 2 h from Days 12 to 17
after oestrus (oestrus= Day 0). Plasma concentrations of progesterone, 15-keto-13, 14 …

This review considers the use of prostaglandin F2α and its synthetic analogues (PG) for
controlling the estrous cycle of the ewe. Aspects such as phase of the estrus cycle, PG …

The temporal relationship between changes in cervical dilatation, uterine electromyographic
(EMG) activity, and maternal plasma concentrations of estradiol 17β (E2), progesterone (P4) …

Luteolysis in domestic species is mediated by the release of luteolytic pulses of
prostaglandin (PG) F2α by the uterus at the end of diestrus, which must be suppressed by …