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 use of transcervical artificial insemination in sheep is limited because of the anatomy of
the cervix, which restricts the passage of an inseminating pipette into the uterine lumen …

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 …

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 …

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 …

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 …

OBJECTIVE: Prostaglandins play an important role in the regulation of parturition and
cervical ripening. Prostaglandin E2 (PGE2)–induced tissue remodeling is mediated through …

The ovine cervix relaxes at estrus allowing easier entry of spermatozoa into the uterus. The
mechanism responsible for this relaxation is not fully elucidated and we hypothesized that …

During the periovulatory period, the cervix of the ewe relaxes and this mechanism is thought
to be mediated by oxytocin and prostaglandin E 2 (PGE 2) in response to increased …

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 …