Ações biológicas das prostaglandinas na reprodução de fêmeas bovinas

Abstract

Prostaglandins are members of a large family of endogenous compounds, known as eicosanoids, derived from oxygenated fatty acids, unsaturated and synthesized in most mammalian tissues. The fact that concentrations increase during childbirth or abortion confirms the participation of this hormone in these processes. PGF associated with oxytocin causes myometrial contraction and PGE due to its spasmodic action on the anterior portion of the uterus, has a relaxing effect on the cervix. They are likely to participate in addition to uterine contraction, with events such as the occlusion of the umbilical vessels and the closure of the venous arterial duct.