Transcervical artificial insemination in sheep is limited by the inability to completely
penetrate the cervix with an inseminating pipette. Penetration is partially enhanced at estrus …

The differential production of prostaglandin (PG) F2α and PGE2 within the uterine
compartment may play a role in controlling myometrial contraction. We hypothesized that the …

Cyclooxygenase (COX), a rate-limiting enzyme that produces prostaglandins (PGs) from
arachidonic acid, exists in two isoforms, COX-1 and COX-2. PGE 2 synthase (PGES) is a …

Endometrial prostaglandins (PGs) and the PGE2/PGF2α ratio play an important role in
regulating the estrous cycle and establishment of pregnancy. The enzymes downstream of …

This study was designed to determine the regulatory effect of glucocorticoid and estradiol on
expression of ovine intrauterine membrane-associated prostaglandin E2 synthase 1 …

Uteroplacental prostaglandins (PGs) play pivotal roles in maintenance and/or termination of
pregnancy in mammals. Regulation of PG biosynthetic and signaling mechanisms in …

Background: We have recently described two distinct pathways of intrauterine prostaglandin
(PG) synthesis: a cortisol-dependent/estradiol-independent mechanism within trophoblast …

Prostaglandin E2 (PGE2) can cause softening of the bovine cervix at oestrus when receptors
for oxytocin (OT) are maximally present, indicating a relationship between OT and PGE2 …

Background In the non-pregnant dog, ovarian cyclicity is independent of a uterine luteolysin.
This is in contrast to pregnant animals where a prepartum increase of luteolytic PGF2α …

Past studies of uterine prostaglandin (PGs) and pig reproduction have focused on
endometrial rather than myometrial PGs. This study documents the synthesis and secretion …