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Liquid chromatography-mass spectrometry behavior of Girard's reagent T derivatives of oxosteroid intact phase II metabolites for doping control purposes.

Drug testing and analysis

Kiousi P, Fragkaki AG, Kioukia-Fougia N, Angelis YS.
PMID: 33942526
Drug Test Anal. 2021 May 03; doi: 10.1002/dta.3056. Epub 2021 May 03.

Intact phase II steroid metabolites have poor product ion mass spectra under collision-induced dissociation (CID) conditions. Therefore, we present herein the liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/(MS)) behavior of intact phase II metabolites of oxosteroids after derivatization. Based on...

ADT-G as a promising biomarker for peripheral hyperandrogenism in adult female acne.

Dermato-endocrinology

Rocha M, Cardozo KHM, Carvalho VM, Bagatin E.
PMID: 29497466
Dermatoendocrinol. 2017 Oct 13;9(1):e1361571. doi: 10.1080/19381980.2017.1361571. eCollection 2017.

Acne vulgaris is a chronic inflammatory disease that affects the pilosebaceous unit. Recent studies have shown an increasing number of cases of acne in adult women. These cases are predominantly normoandrogenic and present some clinical differences compared to adolescent...

Liquid chromatography-mass spectrometry behavior of Girard's reagent T derivatives of oxosteroid intact phase II metabolites for doping control purposes.

Drug testing and analysis

Kiousi P, Fragkaki AG, Kioukia-Fougia N, Angelis YS.
PMID: 33942526
Drug Test Anal. 2021 Nov;13(11):1822-1834. doi: 10.1002/dta.3056. Epub 2021 May 16.

Intact phase II steroid metabolites have poor product ion mass spectra under collision-induced dissociation (CID) conditions. Therefore, we present herein the liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/(MS)) behavior of intact phase II metabolites of oxosteroids after derivatization. Based on...

Showing 1 to 3 of 3 entries