A UHPLC–MS/MS method for the quantification of 7α-hydroxy-4-cholesten-3-one to assist in diagnosis of bile acid malabsorption

Prost, Jean-Christophe; Brunner, Felix; Bovet, Cédric; Grob, Christian; Berchtold, Christian; Schlotterbeck, Götz; Kröll, Dino; Largiadèr, Carlo Rodolfo; Fiedler, Georg Martin; Juillerat, Pascal (2017). A UHPLC–MS/MS method for the quantification of 7α-hydroxy-4-cholesten-3-one to assist in diagnosis of bile acid malabsorption. Clinical mass spectrometry, 3, pp. 1-6. Elsevier 10.1016/j.clinms.2017.02.001

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Bile acids malabsorption (BAM) is encountered in numerous gastrointestinal pathologies and is a good example of a treatable cause of watery diarrhea after ileal resection. The gold standard for diagnosing BAM is the selenium homocholic acid taurine test (SeHCAT), an expensive and complex analysis. An alternative method is the quantification of 7a-hydroxy-4-cholesten-3-one (C4). Here, we present a simple, ultra high-performance liquid chromatography–tandem mass spectrometry method to measure C4 in human serum. To avoid time consuming sample preparation (e.g., derivatization, solid phase extraction), we used absorption chemistry-based extraction plates. This method demonstrates a lower limit of quantification of 5 ng/mL and is linear over a concentration range from 5 to 300 ng/mL (R2 = 0.9977). Inaccuracy and imprecision were less than 15%. The validated method is currently used for routine measurement of C4 from serum in patients to confirm BAM diagnosis.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Haematology, Oncology, Infectious Diseases, Laboratory Medicine and Hospital Pharmacy (DOLS) > Institute of Clinical Chemistry
04 Faculty of Medicine > Department of Gastro-intestinal, Liver and Lung Disorders (DMLL) > Clinic of Visceral Surgery and Medicine > Gastroenterology
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR)
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Gastroenterologie / Mukosale Immunologie
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > DBMR Forschung Mu35 > Forschungsgruppe Gastroenterologie / Mukosale Immunologie

04 Faculty of Medicine > Department of Gastro-intestinal, Liver and Lung Disorders (DMLL) > Clinic of Visceral Surgery and Medicine > Visceral Surgery

UniBE Contributor:

Prost, Jean-Christophe; Brunner, Felix; Bovet, Cédric; Kröll, Dino; Largiadèr, Carlo Rodolfo; Fiedler, Georg Martin and Juillerat, Pascal

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2376-9998

Publisher:

Elsevier

Language:

English

Submitter:

Lilian Karin Smith-Wirth

Date Deposited:

09 Feb 2018 13:29

Last Modified:

09 Feb 2018 13:38

Publisher DOI:

10.1016/j.clinms.2017.02.001

BORIS DOI:

10.7892/boris.109075

URI:

https://boris.unibe.ch/id/eprint/109075

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