… our finding, since the estrogen and progesterone levels in the PP … Earlier studies in goat and
sheep suggested a possible … tissue remodeling enzymes could lead to the cervical ripening. …

… cervical ripening in pregnant and non-pregnant guinea pigs and rats independently of the
action of prostaglandins. The … In some species such as the rat, rabbit and sheep, progesterone …

… In addition, progesterone withdrawal in sheep is associated with the formation of gap
junctions … of prostaglandin F levels in uterus venous effluent in pregnant and puerperal sheep. …

… from pregnant ewes was similar to that in nonpregnant ewes at … luteolysis, when the uterus
is under the influence of progesterone. … estradiol-17ß on the release of prostaglandin F20 …

… oestrous cycle prepare the uterus to secrete luteolytic … prostaglandins E2, F2a and 6-ketoprostaglandin
F1a in the utero-ovarian venous plasma of nonpregnant and early pregnant ewes…

… formation of prostaglandins in the human uterus during labor … and prostaglandin
production apply also to the nonpregnant … sheep is the result of a change in the estrogen:progesterone …

… the release of these prostaglandins. PGE causes cervical softening in ewes (for references,
see … Mizrachi and Shemesh, 1999a) and, in both non-pregnant and pregnant cows, PGE2 …

… pregnant and nonpregnant animals [124]. Thus, it appears that the pregnant uterus secretes
a … Effects of intrafollicular injections of prostaglandins in non-pregnant and pregnant ewes. J …

… Enzymes involved in the synthesis of oestrogens have been … Also prostaglandins seem to
influence the myometrial gap … , 1979 b: Hormonal control of gap junction formation in sheep …

… than cyclic ewes due to continued expression of prostaglandin … of the ovine uterus to estrogen,
progesterone, IFNT, CSH1 … secretion) as occurs in nonpregnant gilts and sows (Figure 3). …