Prostaglandins, produced from membrane phospholipids by the action of phospholipase A2,
cyclooxygenase, and specific prostaglandin synthases, are important regulators of ovulation …

In recent years, considerable progress has been made in our understanding of the
endocrine mechanisms that control the pattern and timing of uterine secretion of …

Prostaglandin F 2α (PGF 2α), an arachidonic acid metabolism product of the prostaglandin
synthetase pathway, is synthesized and released from the endometrium during luteolysis in …

It is assumed that exposure of endometrium to spontaneously secreted luteal hormones
stimulates PGF2α secretion and modifies oxytocin (OT) influence on the bovine uterus. At …

Oestradiol acting on a progesterone-primed uterus stimulates prostaglandin (PG) F2α
synthesis by the endometrium. In some species (notably the sheep, cow and goat) oxytocin …

To examine possible mechanisms involved in resistance of the ovine corpus luteum to the
luteolytic activity of prostaglandin (PG) F2α, the enzymatic activity of 15 …

The objective of the present study was to investigate the influence of progesterone on
prostaglandin synthesis by the corpus luteum (CL). Corpora lutea were obtained from dairy …

Prostaglandin F2α (PGF2α) release from the uterus causes luteolysis in ruminants, and
oxytocin is thought to be a regulator of this release. In the present study, we have examined …

The involvement of progesterone in the regulation of uterine PGF2α secretion is well
documented. Most studies have indicated that the episodic secretion of PGF2α, which …

Prostaglandin (PG) F2α that is released from the uterus is essential for spontaneous
luteolysis in cattle. Although PGF2α and its analogues are extensively used to synchronize …