activin

Pronunciation: ak′ti-vin

Definition: Placental hormone that reaches maximum levels in maternal serum during labor; helps to regulate production of gonadotropin-releasing hormones, human chorionic gonadotropin, and steroids by the placenta.

[active + -in]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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