Lactogen

Placental lactogen, also referred to as chorionic somatomammotropin, is a polypeptide hormone, produced by the placenta during pregnancy. It influences the metabolic processes of both the mother and fetus, aiding in the growth and development of the fetus. Classified within the somatotropin family, placental lactogen shares both structural and functional similarities to growth hormone and pituitary prolactin. It has been identified in various mammals, including humans, monkeys, mice, cows, hamster, and sheep. However, it has not been found in dogs and rabbits.

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