期刊
CLINICAL BIOCHEMISTRY
卷 43, 期 6, 页码 615-620出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.clinbiochem.2009.12.008
关键词
NGAL; Immunoassay; Acute Kidney Injury; Architect
Objectives: NGAL (Neutrophil Gelatinase-Associated Lipocalin) has emerged as a new biomarker for the identification of acute kidney injury. Reliable clinical evaluations require a simple, robust test method for NGAL, and knowledge of specimen handling and specimen stability characteristics. We evaluated the performance of a new urine NGAL assay on the ARCHITECT analyzer. Methods: Assay performance characteristics were evaluated using standard protocols. Urine specimen storage requirements were determined and biological variability was assessed in a self-declared apparently healthy population. Results: Assay performance data showed good precision, sensitivity and lot-to-lot reproducibility. There was good short term 2-8 degrees C sample stability, however, long term storage samples must be kept at -70 degrees C or colder. The largest variance component in a biological variance study was within-day. Conclusions: The ARCHITECT NGAL assay proved to be a precise and reproducible assay for the determination of urine NGAL (C) 2009 The Canadian Society of Clinical Chemists. Published by Elsevier Inc. All rights reserved.
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