Dictionary of Human Evolution and Biology

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Placental Lactogen

Polypeptide hormone secreted by the placenta that enters the maternal circulation and disappears from the circulation immediately after delivery. Placental lactogen has growth-promoting activity, is immunologically similar to growth hormone, and inhibits maternal insulin activity during pregnancy. By inhibiting glucose oxidation, it can increase the glucose supply to a fetus developing in a malnourished mother. Aka choriomammotropin, chorionic somatommatropin, placental growth hormone.

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