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Clinical Chemistry 40: 2296-2305, 1994;
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Clinical Chemistry, Vol 40, 2296-2305, Copyright © 1994 by American Association for Clinical Chemistry

Hirsutism and acne in women: coordinated radioimmunoassays for eight relevant plasma steroids

J Fiet, JP Gosling, H Soliman, H Galons, P Boudou, P Aubin, A Belanger, JM Villette, R Julien and JL Brerault
Laboratoire de Biologie Hormonale, Hopital Saint-Louis, Paris, France.

We developed and validated a coordinated set of RIAs for the following eight steroids in single small aliquots (< or = 1 mL) of plasma: androstenedione, dehydroepiandrosterone, 11-deoxycortisol, 21- deoxycortisol (21-DF), 11 beta-hydroxyandrostenedione, 17 alpha- hydroxypregnenolone (17-Hpreg), 17 alpha-hydroxyprogesterone, and testosterone. Samples were extracted and then chromatographed on celite microcolumns. Radioiodinated tracers were used for two of the assays (17-Hpreg and 21-DF). Tritiated tracers and scintillation proximity assay counting were used to give separation-free procedures for the other six assays, which considerably improved their practicability and reproducibility. The basal and postadrenocorticotropic hormone plasma values for these steroids in normal women sampled in the follicular phase are presented. Finally, the measurement of the eight steroids as a diagnostic method is evaluated with reference to data from 203 patients with hirsutism and (or) acne.


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