OVINE PLACENTAL LACTOGEN: ACUTE EFFECTS ON INTERMEDIARY METABOLISM IN PREGNANT AND NON-PREGNANT SHEEP

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Abstract
SUMMARY The intravenous administration of ovine placental lactogen to pregnant and non-pregnant sheep produced significant acute decreases in plasma free fatty acid, glucose and amino nitrogen concentrations. Plasma insulin concentrations decreased 1 h after administration of ovine placental lactogen and then increased significantly above baseline concentrations. The results suggest that, like human placental lactogen, ovine placental lactogen is important in the modulation of intermediary metabolism during pregnancy. The sheep is an excellent animal model for the investigation of the physiology of placental lactogen.