hrcak mascot   Srce   HID

Izvorni znanstveni članak
https://doi.org/10.11613/BM.2015.020

Method evaluation study of a new generation of vitamin D assays

Dietmar Enko ; Institute of Laboratory Medicine, General Hospital Steyr, Steyr, Austria
Gernot Kriegshäuser ; Institute of Laboratory Medicine, General Hospital Steyr, Steyr, Austria
Robert Stolba ; Institute of Laboratory Medicine, General Hospital Steyr, Steyr, Austria
Elfriede Worf ; Institute of Laboratory Medicine, General Hospital Steyr, Steyr, Austria
Gabriele Halwachs-Baumann ; Institute of Laboratory Medicine, General Hospital Steyr, Steyr, Austria

Puni tekst: engleski, pdf (314 KB) str. 203-212 preuzimanja: 414* citiraj
APA 6th Edition
Enko, D., Kriegshäuser, G., Stolba, R., Worf, E. i Halwachs-Baumann, G. (2015). Method evaluation study of a new generation of vitamin D assays. Biochemia Medica, 25 (2), 203-212. https://doi.org/10.11613/BM.2015.020
MLA 8th Edition
Enko, Dietmar, et al. "Method evaluation study of a new generation of vitamin D assays." Biochemia Medica, vol. 25, br. 2, 2015, str. 203-212. https://doi.org/10.11613/BM.2015.020. Citirano 22.01.2021.
Chicago 17th Edition
Enko, Dietmar, Gernot Kriegshäuser, Robert Stolba, Elfriede Worf i Gabriele Halwachs-Baumann. "Method evaluation study of a new generation of vitamin D assays." Biochemia Medica 25, br. 2 (2015): 203-212. https://doi.org/10.11613/BM.2015.020
Harvard
Enko, D., et al. (2015). 'Method evaluation study of a new generation of vitamin D assays', Biochemia Medica, 25(2), str. 203-212. https://doi.org/10.11613/BM.2015.020
Vancouver
Enko D, Kriegshäuser G, Stolba R, Worf E, Halwachs-Baumann G. Method evaluation study of a new generation of vitamin D assays. Biochemia Medica [Internet]. 2015 [pristupljeno 22.01.2021.];25(2):203-212. https://doi.org/10.11613/BM.2015.020
IEEE
D. Enko, G. Kriegshäuser, R. Stolba, E. Worf i G. Halwachs-Baumann, "Method evaluation study of a new generation of vitamin D assays", Biochemia Medica, vol.25, br. 2, str. 203-212, 2015. [Online]. https://doi.org/10.11613/BM.2015.020

Sažetak
Introduction: Recently several diagnostic manufacturers have launched new 25-hydroxy-vitamin D (25[OH]D) assays, which are aligned to the National Institute of Standards and Technology (NIST) Standard Reference Materials (SRM) (NIST, Gaithersburg, Maryland). The aim of this study was to compare the performance of one liquid chromatography-tandem mass spectrometry (LC-MS/MS) method, one enzyme linked immunosorbent assay (ELISA), and one recalibrated and previous version of a chemiluminescence immunoassay (CLIA).
Material and methods: Serum-aliquots of 198 patient samples from routine 25(OH)D analysis were measured by the ClinMass® LC-MS/MS Complete Kit (RECIPE Chemicals + Instruments GmbH, Munich, Germany), the ORGENTEC 25(OH)D3/D2 ELISA (ORGENTEC Diagnostika GmbH, Mainz, Germany), the recalibrated Immunodiagnostic Systems (IDS)-iSYS 25(OH)DS and the previous used IDS-iSYS 25(OH)D CLIA (Immunodiagnostic Systems Ltd, Boldon, United Kingdom). Bland-Altman and Deming regression analyses were calculated for methods comparison of all tested 25(OH)D assays. The LC-MS/MS method was defined as the reference method. Within-run and between-run precision measurements were performed for all methods with three different concentration levels.
Results: Compared to the LC-MS/MS method, the new IDS-iSYS 25(OH)DS and ORGENTEC 25(OH)D3/D2 assay demonstrated mean relative biases of 16.3% and 17.8%. The IDS-iSYS 25(OH)D assay showed the lowest mean bias of 1.5%. Deming regression analyses of the recalibrated IDS-iSYS 25(OH)DS and the ORGENTEC 25(OH)D3/D2 assay showed proportional differences, when compared to the reference method. All assays showed a within-run and between-run imprecision of ≤ 20% at each of the evaluated concentration levels.
Conclusions: The evaluated standardized immunoassays and LC-MS/MS are useful methods for measuring 25(OH)D serum-levels in clinical laboratories.

Ključne riječi
vitamin D; immunoassays; liquid chromatography-tandem mass spectrometry; reference standards; quality improvement

Hrčak ID: 139803

URI
https://hrcak.srce.hr/139803

Posjeta: 767 *