PMID- 25591854 OWN - NLM STAT- MEDLINE DCOM- 20151230 LR - 20221207 IS - 1932-2968 (Electronic) IS - 1932-2968 (Linking) VI - 9 IP - 2 DP - 2015 Mar TI - Analytical evaluation of the Diazyme glycated serum protein assay on the siemens ADVIA 1800: comparison of results against HbA1c for diagnosis and management of diabetes. PG - 192-9 LID - 10.1177/1932296814567894 [doi] AB - Hemoglobin A1c (HbA1c) is considered the gold standard for assessment of glycemic control in diabetic patients. HbA1c is inadequate in individuals homozygous or compound heterozygous for hemoglobin variants or in conditions with an altered red blood cell turnover. In these cases glycated albumin (GA) is proposed as an alternative assay. We aimed to evaluate the analytical performance of the Diazyme glycated serum protein (GSP) assay on an automated analyzer, to establish a reference interval (RI), and to compare from a clinical perspective, GSP/GA with glycated Hb (glyHb) results. Validation studies followed the CLSI guidelines and included precision, linearity, interferences, concordance of results with glyHb, and RI calculation. GSP was analyzed on representative samples with previously ordered HbA1c and albumin from the Dyna LIFE : DX laboratory. Samples from patients with bisalbuminemia, hemoglobinopathies, and multiple myeloma were also included. Within-run and total imprecision was <3.0% at both levels of control, analytical sensitivity was 5.31 mumol/L, and linearity was verified from 10 to 1150 mumol/L (total allowable error of 5%). Clinical concordance between %GA and glyHb was substantial (n = 175, R2 = .91, kappa = .78, P = .167). GSP RI was 160 to 340 mumol/L or if expressed as %GA 10.5 to 17.5%. Analytical performance of the Diazyme GSP assay on the Siemens ADVIA 1800 is acceptable for clinical use. The RI obtained was higher than that suggested by the manufacturer. CI - (c) 2015 Diabetes Technology Society. FAU - Rodriguez-Capote, Karina AU - Rodriguez-Capote K AD - Dyna LIFE DX Diagnostic Laboratory Services, Edmonton, AB, Canada Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada karina.capote@dynalifedx.com. FAU - Tovell, Kayla AU - Tovell K AD - Dyna LIFE DX Diagnostic Laboratory Services, Edmonton, AB, Canada. FAU - Holmes, Deborah AU - Holmes D AD - Dyna LIFE DX Diagnostic Laboratory Services, Edmonton, AB, Canada. FAU - Dayton, Janice AU - Dayton J AD - Dyna LIFE DX Diagnostic Laboratory Services, Edmonton, AB, Canada. FAU - Higgins, Trefor N AU - Higgins TN AD - Dyna LIFE DX Diagnostic Laboratory Services, Edmonton, AB, Canada Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada. LA - eng PT - Comparative Study PT - Journal Article DEP - 20150114 PL - United States TA - J Diabetes Sci Technol JT - Journal of diabetes science and technology JID - 101306166 RN - 0 (Blood Glucose) RN - 0 (Glycated Hemoglobin A) RN - 0 (Glycation End Products, Advanced) RN - 0 (Serum Albumin) RN - 0 (Glycated Serum Albumin) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Blood Chemical Analysis/*instrumentation/methods MH - Blood Glucose/*analysis MH - Diabetes Mellitus/*blood/diagnosis MH - Female MH - Glycated Hemoglobin/analysis MH - Glycation End Products, Advanced MH - Humans MH - Male MH - Middle Aged MH - Reference Values MH - Sensitivity and Specificity MH - Serum Albumin/*analysis MH - Young Adult MH - Glycated Serum Albumin PMC - PMC4604597 OTO - NOTNLM OT - diabetes mellitus OT - glycated albumin OT - glycated hemoglobin OT - glycated protein OT - glycemic markers OT - hemoglobin A1c COIS- Declaration of Conflicting Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. EDAT- 2015/01/17 06:00 MHDA- 2015/12/31 06:00 PMCR- 2016/01/14 CRDT- 2015/01/17 06:00 PHST- 2015/01/17 06:00 [entrez] PHST- 2015/01/17 06:00 [pubmed] PHST- 2015/12/31 06:00 [medline] PHST- 2016/01/14 00:00 [pmc-release] AID - 1932296814567894 [pii] AID - 10.1177_1932296814567894 [pii] AID - 10.1177/1932296814567894 [doi] PST - ppublish SO - J Diabetes Sci Technol. 2015 Mar;9(2):192-9. doi: 10.1177/1932296814567894. Epub 2015 Jan 14.