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  • Title: A comparison of three glucocorticoid suppressive regimes in adults with congenital adrenal hyperplasia.
    Author: Horrocks PM, London DR.
    Journal: Clin Endocrinol (Oxf); 1982 Dec; 17(6):547-56. PubMed ID: 6299623.
    Abstract:
    We have compared three glucocorticoids, hydrocortisone (HC) (20 mg mane & 10 mg nocte), cortisone acetate (CA) (25 mg mane & 12.5 mg nocte), dexamethasone (DXM) (0.5 mg mane & 0.25 mg nocte), for their effect on the biochemical control of adult patients with congenital adrenal hyperplasia (CAH). Twenty-four-hour profiles of plasma concentrations of ACTH, 17-hydroxyprogesterone (170HP) and androstenedione (delta 4A), and 09.00 h dehydroepiandrosterone sulphate (DHAS) plasma concentrations were used to assess control. The patients were studied after 2 weeks on each glucocorticoid. The areas under the curves, the heights of the morning peaks of each hormone, the midnight concentrations, and the concentrations of hormones just before the evening dose were analysed. The results show that all the indices, except the midnight concentrations which were uniformly low, were significantly lower on DXM than on either HC or CA. There were no significant differences between HC and CA for any of the indices. The DHAS concentrations were low on all three glucocorticoids but again significantly lower on DXM. DXM (0.5 mg mane & 0.25 mg nocte) is therefore, in the short term, a better suppressor of the pituitary-adrenal axis in adults with CAH than either HC or CA, and in the dose used did not suppress ACTH to undetectable levels, nor the steroids to below levels found in normal subjects.
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