Abstract
Congenital adrenal hyperplasia (CAH) is a group of autosomal recessive disorders due to enzymatic defects in the biosynthetic pathway of cortisol and/or aldosterone. The analysis of cortisol, 17-hydroxyprogesterone (OHPG), dehydroepiandrosterone (DHEA), 11-deoxycortisol, and testosterone is generally performed in the diagnosis and/or follow-up of CAH. Cortisol is generally analyzed by immunoassays whereas other hormones are preferably assayed by liquid chromatography-tandem mass spectrometry (LC/MS/MS). A multiple reaction monitoring, positive mode atmospheric pressure chemical ionization, LC/MS/MS method is described for the simultaneous quantification of 17-hydroxyprogesterone, DHEA, 11-deoxycortisol, and testosterone. Stable-isotope labeled internal standards are added to serum samples and steroids are extracted by liquid-liquid extraction using methyl tert-butyl ether. The extract is evaporated under stream of nitrogen and the residue is reconstituted in methanol and analyzed by LC/MS/MS.
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Munar, A., Frazee, C., Garg, U. (2016). Quantification of Dehydroepiandrosterone, 11-Deoxycortisol, 17-Hydroxyprogesterone, and Testosterone by Liquid Chromatography-Tandem Mass Spectrometry (LC/MS/MS). In: Garg, U. (eds) Clinical Applications of Mass Spectrometry in Biomolecular Analysis. Methods in Molecular Biology, vol 1378. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-3182-8_29
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DOI: https://doi.org/10.1007/978-1-4939-3182-8_29
Publisher Name: Humana Press, New York, NY
Print ISBN: 978-1-4939-3181-1
Online ISBN: 978-1-4939-3182-8
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