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Low hemoglobin density potential marker of iron availability.
MedLine Citation:
PMID:  21722324     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Introduction:  Low hemoglobin density (LHD%) is a new parameter provided by Beckman-Coulter derived from the mean cell hemoglobin concentration, using the mathematical sigmoid transformation [Formula: see text] This study investigated the reliability of LHD% for the assessment of iron status in the presence of inflammation. Methods:  Healthy subjects (n = 90) and patients with iron deficiency (IDA, n = 110), chronic kidney disease (CKD, n = 65) and anemia of chronic disease (ACD, n = 85; 24 were iron deficient and 61 were iron sufficient) were analyzed on a LH 780 analyzer (Beckman Coulter Inc., Miami, FL, USA). Independent samples U test and receiver operating characteristic (ROC) curve analysis were applied. To determine the concordance between LHD% and soluble transferrin receptor (sTrR) Cohen's κ index was calculated. Results:  LHD % values showed no statistical difference in patients with IDA and patients with ACD accompanied with IDA (P = 0.6427); LHD% values in these patients were significantly different (P < 0.0001) compared with the iron-sufficient patients with ACD. ROC analysis for LHD% in the detection of iron deficiency showed the following: area under curve 0.903; cut off 5.5%, sensitivity 88.6%, specificity 76.9%; κ index, 0.65. Conclusion:  LHD% is a reliable parameter for the detection of iron deficiency in patients with anemia in the presence of inflammation.
Authors:
E Urrechaga; M Unceta; L Borque; J F Escanero
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-7-4
Journal Detail:
Title:  International journal of laboratory hematology     Volume:  -     ISSN:  1751-553X     ISO Abbreviation:  -     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-7-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101300213     Medline TA:  Int J Lab Hematol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 Blackwell Publishing Ltd.
Affiliation:
Hematology Laboratory, Hospital Galdakao - Usansolo, Galdakao, Spain Biochemistry Laboratory, Hospital Galdakao - Usansolo, Galdakao, Spain Department of Pharmacology and Physiology, Faculty of Medicine, University of Zaragoza, Zaragoza, Spain.
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