Vehicle or 8 or 16 mg PGF 2α/58 kg/body weight (BW) was given intramuscularly to intact,
hysterectomized and ovariectomized 90 to 100 day pregnant ewes in three separate …

Contents Sex steroids in synergy with prostaglandins (PG) are involved in the regulation of
cyclic ovarian function. In this study, we investigated the mRNA expression of three genes …

Parturition in the ewe is preceded by an increase in the synthesis of prostaglandins (PGs) by
gestational tissues. To establish the uterine source of these PGs, placental cotyledons, fetal …

Six non-pregnant ewes at day 12 of the estrous cycle each had a day-12 embryo transferred
into the uterine horn ipsilateral to the corpus luteum, and 4 non-pregnant ewes at day 13 …

Concentrations of prostaglandin E (PGE), PGF, and 6-oxo-PG1α (the hydrolysis product of
PGI2) were measured by RIA in different areas of myometrium, endometrium, cotyledons …

Prostaglandin E2 (PGE2) may regulate uterine activation and cervical ripening for labor
through specific contractile and relaxatory receptors (EP1-4). The aim of this study was to …

Abstract PG endoperoxide H synthase-2 (PGHS-2) messenger RNA (mRNA) and protein
levels are increased dramatically in ovine myometrium and endometrium during both …

Two experiments were conducted to determine whether administration of progesterone
during early pregnancy affects fetal growth in sheep and if any effect is specific to the days of …

In sheep, fetal cortisol stimulates the conversion of progesterone to estradiol in late gestation
initiating labor. It is unclear whether an intact fetal hypothalamic-pituitary-adrenal (HPA) axis …

Cervical softening was induced in late pregnant sheep by infusion of PGE-2 into a cervical
artery. The effect of this treatment was assessed by measurement of the extensibility in vitro …