Although prostaglandin E 2 (PGE 2) has been identified as a central mediator of the cervical
ripening process, the mechanisms responsible for PGE 2 ripening are still poorly …

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 …

There is a degree of cervical relaxation in the ewe at estrus that is regulated by changes in
prostaglandin synthesis, prostaglandin receptor expression, and changes in the cervical …

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 …

The purposes of this study were to determine the separate and interactive functions of
progesterone and estradiol in regulating the cervical prostaglandin (PG) system in pregnant …

The mechanisms of cervical ripening and dilation in mammals remain obscure. Information
is lacking about the localization of prostaglandin E2 (PGE2)-producing cells and PGE2 …

In the present study, we examined the in vivo effects of estradiol (E 2) and progesterone on
cyclooxygenase (COX) 2, prostaglandin F synthase (PTGFS, also known as PGFS), and …

Prostaglandins (PGs) play important functions in the reproductive system, and PGE2
appears necessary for recognition of pregnancy. We have found that PGE2 is able to …

Gamete and embryo transport is an important function of the oviduct. This transport involves
both smooth muscle contraction and epithelial cell secretions, the former of which is …

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 …