Skip to main navigation Skip to search Skip to main content

Newborn screening for Cerebrotendinous Xanthomatosis: A retrospective biomarker study using both flow-injection and UPLC-MS/MS analysis in 20,000 newborns

  • Amsterdam UMC, location University of Amsterdam, Department of Surgery, Amsterdam
  • The George Washington University School of Nursing, Washington, DC, USA.
  • Oregon Health and Science University
  • Radboud University Medical Center, Radboud Institute for Health Sciences
  • Canisius Wilhelmina Hospital
  • PerkinElmer / Wallac Oy
  • Amsterdam UMC
  • University of Amsterdam
  • United for Metabolic Diseases
  • University of Washington, Seattle
  • Radboud University Nijmegen
  • National Institute of Public Health and the Environment
  • Wallac Oy
  • Erasmus University Rotterdam

Research output: Contribution to journalArticleAcademicpeer-review

15 Downloads (Pure)

Abstract

Background and aims: Cerebrotendinous Xanthomatosis (CTX) is a treatable disorder of bile acid synthesis caused by deficiency of 27-sterol hydroxylase -encoded by CYP27A1- leading to gastrointestinal and progressive neuropsychiatric symptoms. Biochemically, CTX is characterized by accumulation of the bile alcohol cholestanetetrol glucuronide (GlcA-tetrol) and the deficiency of tauro-chenodeoxycholic acid (t-CDCA) and tauro-trihydroxycholestanoic acid (t-THCA). Materials and Methods: To ascertain the feasibility of CTX newborn screening (NBS) we performed a study with deidentified Dutch dried blood spots using reagents and equipment that is frequently used in NBS laboratories. 20,076 deidentified newborn blood spots were subjected to flow-injection (FIA)-MS/MS and UPLC-MS/MS analysis to determine the concentration of GlcA-tetrol and calculate the GlcA-tetrol/t-CDCA and t-THCA/GlcA-tetrol ratios. Results: Using UPLC-MS/MS analysis both GlcA-tetrol concentration and/or metabolite ratios GlcA-tetrol/t-CDCA proved to be informative biomarkers; newborn DBS results did not overlap with those of the CTX patients. For FIA-MS/MS, GlcA-tetrol also was an excellent marker but when using the combination of the GlcA-tetrol/t-CDCA and t-THCA/GlcA-tetrol ratios also did not yield any screen positives. Conclusion: Newborn screening for CTX using only metabolite ratios following the measurement of three CTX biomarkers is possible using either FIA-MS/MS or UPLC-MS/MS, which paves the way for introduction of CTX NBS.
Original languageEnglish
Pages (from-to)170-174
Number of pages5
JournalClinica Chimica Acta
Volume539
DOIs
Publication statusPublished - 15 Jan 2023

Keywords

  • Cerebrotendinous Xanthomatosis
  • Metabolite ratios
  • Newborn screening
  • Tandem mass spectrometry

Fingerprint

Dive into the research topics of 'Newborn screening for Cerebrotendinous Xanthomatosis: A retrospective biomarker study using both flow-injection and UPLC-MS/MS analysis in 20,000 newborns'. Together they form a unique fingerprint.

Cite this