17-Hydroxyprogesterone (17-Ohp) est endogenous progestogen tum chemical medium in biosynthesisof othersteroid hormones, inter corticosteroids et androgens et estrogens. Est ex progesterone via XVII-hydroxylase, A P450C17 enzyme, aut ex XVII-hydroxypregnenolone via III-hydroxysteroid dehydrogenase isomerase. 17-OHP augetur in tertio graviditatis trimester imprimis ob productionem adrenalis foetus. Hic steroides imprimis producitur …