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Toward standardization of carbohydrate-deficient transferrin (CDT) measurements: I. Analyte definition and proposal of a candidate reference method.

På svenska

Author

  • Jan-Olof Jeppsson
  • Torsten Arndt
  • François Schellenberg
  • Jos P M Wielders
  • Raymond F Anton
  • John B Whitfield
  • Anders Helander

Summary, in English

An alcohol-associated change in the serum transferrin glycoform pattern, carbohydrate-deficient transferrin (CDT), is used as a biomarker of chronic moderate to heavy alcohol consumption. A current limitation in CDT analysis is the lack of standardization, which hampers clinical and analytical comparison between studies. This situation prompted initiation of a Working Group (WG) on CDT Standardization under the auspices of the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC). The standardization work aims to define and validate the analyte, select a reference method, work out procedures for the production of reference materials, and make suggestions for the clinical usage of CDT. The first recommendation of the WG is that disialotransferrin should be the primary target molecule for CDT measurement and the single analyte on which CDT standardization is based. It is further recommended that HPLC should be the analytical principle considered as the basis of an interim reference method until a suitable mass spectrometric reference method is established. In clinical use, CDT should be expressed in a relative amount (% CDT), to compensate for variations in the total transferrin concentration.

Publishing year

2007

Language

English

Pages

558-562

Publication/Series

Clinical Chemistry and Laboratory Medicine

Volume

45

Issue

4

Document type

Journal article

Publisher

De Gruyter

Topic

  • Clinical Laboratory Medicine

Keywords

  • alcohol biomarker
  • HPLC
  • standardization
  • carbohydrate-deficient transferrin (CDT)
  • disialotransferrin

Status

Published

Research group

  • Clinical Chemistry, Malmö

ISBN/ISSN/Other

  • ISSN: 1434-6621