Associate Editors
Ferruccio Ceriotti
Davide Giavarina
Bruna Lo Sasso
Giampaolo Merlini
Martina Montagnana
Andrea Mosca
Paola Pezzati
Rossella Tomaiuolo
Matteo Vidali
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Marcello Ciaccio Italy
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Giuseppe Lippi Italy
☩Howard Morris Australia
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Ana-Maria Simundic Croatia
☩Jill Tate Australia
Tommaso Trenti Italy
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BC: Articoli scritti da Gruppo di Studio SIBioC - Medicina di Laboratorio Biomarcatori di Rischio Cardiovascolare
Stato dell’arte dell’immunodosaggio dei peptidi natriuretici di tipo B
State of the art of B-type natriuretic peptide (BNP) immunoassays
<p>Recent studies have demonstrated that the precursor of BNP (proBNP) constitutes the major part of BNP-related peptides detectable in plasma of patients with heart failure by the commercially available immunoassays considered specific for the BNP hormone. Since proBNP significantly cross-reacts with commercial immunoassays for BNP, manufacturers should test and clearly declare the cross-reaction with proBNP in their BNP methods. Owing to the differences in cross-reaction with proBNP as well as in specificity, respectively, for the NH2- or COOH-terminal part of the peptide hormone chain, BNP immunoassays show significant between-method differences. Immunoassays for NT-proBNP, which all use standard materials and antibodies provided by the same company, show lower differences (generally minore del 20%). Clinicians should take into account these differences among methods when they compare results obtained from different laboratories, which use different BNP immunoassays. Accordingly, the use of a common decisional limit for all BNP immunoassay methods, as suggested by the most recent international guidelines, may be unreliable.</p>
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