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11-dehydrocorticosterone

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11-dehydrocorticosterone /11-de·hy·dro·cor·ti·cos·ter·one/ (-kor″tĭ-kos´ter-ōn) a steroid produced by the adrenal cortex.
11-dehydrocorticosterone [de-hi″dro-kor″tĭ-ko-stēr´ōn]
one of the least active of the glucocorticosteroids produced by the adrenal cortex; it affects water and salt metabolism.

11-dehydrocorticosterone
one of the least active of the glucocorticosteroids produced by the adrenal cortex.


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In the placenta the fetus is protected from the high maternal glucocorticoid concentration through the activity of 11[beta]-hydroxysteroid dehydrogenase type 2 (11[beta]-HSD2), which converts active 11[beta]-hydroxyglucocorticoids (cortisol in human, corticosterone in rodents) into inactive 11-ketoglucocorticoids (cortisone in human, 11-dehydrocorticosterone in rodents) (reviewed in Stewart and Krozowski 1999).
The enzyme 11[beta]-hydroxysteroid dehydrogenase type 2 (11[beta]-HSD2) converts corticosterone to 11-dehydrocorticosterone in the distal convoluted tubules and cortical collecting ducts in rats, and cortisol to cortisone in humans.
 
 
 
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