The effects of estrogen and progesterone on the content and concentration of
prostaglandins F (PGF) in uterine tissue and venous plasma were investigated in ewes …

Oxytocin receptors play an important role in the establishment of pregnancy and parturition
in ruminants. Previous studies in cyclic and early pregnant ewes have indicated that …

Progesterone is unequivocally required for maternal support of conceptus (embryo/fetus and
associated extraembryonic membranes) survival and development. In cyclic sheep …

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 …

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

Luteolysis in domestic species is mediated by the release of luteolytic pulses of
prostaglandin (PG) F2α by the uterus at the end of diestrus, which must be suppressed by …

Concentrations of prostaglandins E and F (PGE and PGF) were measured in the embryo or
fetus, extra embryonic or fetal membranes (membranes), intercaruncular and caruncular …

Prostaglandins (PGs) are synthesized from arachidonic acid by prostaglandin synthase 2
(PTGS2) and specific terminal PG synthases such as PGES and PGFS. The role of PGs in …

Evidence that the pattern of secretion of prostaglandin E 2 (PGE 2) by the uterus: conceptus
unit is consistent with that compound playing a role in the local antiluteolytic effect of the …

The present study tested the hypothesis that ovarian oestradiol increases the rate of uterine
involution after parturition in sheep. The day after parturition, ewes were randomly assigned …