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Rothkamm, K.* ; Beinke, C.* ; Romm, H.* ; Badie, C.* ; Balagurunathan, Y.* ; Barnard, S.* ; Bernard, N.* ; Boulay-Greene, H.* ; Brengues, M.* ; de Amicis, A.* ; de Sanctis, S.* ; Greither, R.* ; Herodin, F.* ; Jones, A.* ; Kabacik, S.* ; Knie, T.* ; Kulka, U.* ; Lista, F.* ; Martigne, P.* ; Missel, A.* ; Moquet, J.* ; Oestreicher, U.* ; Peinnequin, A.* ; Poyot, T.* ; Roessler, U.* ; Scherthan, H.* ; Terbrueggen, B.* ; Thierens, H.* ; Valente, M.* ; Vral, A.* ; Zenhausern, F.* ; Meineke, V.* ; Braselmann, H. ; Abend, M.*

Comparison of established and emerging biodosimetry assays.

Radiat. Res. 180, 111-119 (2013)
Verlagsversion DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Rapid biodosimetry tools are required to assist with triage in the case of a large-scale radiation incident. Here, we aimed to determine the dose-assessment accuracy of the well-established dicentric chromosome assay (DCA) and cytokinesis-block micronucleus assay (CBMN) in comparison to the emerging γ-H2AX foci and gene expression assays for triage mode biodosimetry and radiation injury assessment. Coded blood samples exposed to 10 X-ray doses (240 kVp, 1 Gy/min) of up to 6.4 Gy were sent to participants for dose estimation. Report times were documented for each laboratory and assay. The mean absolute difference (MAD) of estimated doses relative to the true doses was calculated. We also merged doses into binary dose categories of clinical relevance and examined accuracy, sensitivity and specificity of the assays. Dose estimates were reported by the first laboratories within 0.3-0.4 days of receipt of samples for the γ-H2AX and gene expression assays compared to 2.4 and 4 days for the DCA and CBMN assays, respectively. Irrespective of the assay we found a 2.5-4-fold variation of interlaboratory accuracy per assay and lowest MAD values for the DCA assay (0.16 Gy) followed by CBMN (0.34 Gy), gene expression (0.34 Gy) and γ-H2AX (0.45 Gy) foci assay. Binary categories of dose estimates could be discriminated with equal efficiency for all assays, but at doses ≥1.5 Gy a 10% decrease in efficiency was observed for the foci assay, which was still comparable to the CBMN assay. In conclusion, the DCA has been confirmed as the gold standard biodosimetry method, but in situations where speed and throughput are more important than ultimate accuracy, the emerging rapid molecular assays have the potential to become useful triage tools.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Biological Dosimetry; Radiation-exposure; Triage; Network; Emergency; Dna; Casualties; Accidents; Biomarker; Damage
Sprache englisch
Veröffentlichungsjahr 2013
HGF-Berichtsjahr 2013
ISSN (print) / ISBN 0033-7587
e-ISSN 1938-5404
Zeitschrift Radiation Research
Quellenangaben Band: 180, Heft: 2, Seiten: 111-119 Artikelnummer: , Supplement: ,
Verlag Radiation Research Society
Verlagsort Lawrence
Begutachtungsstatus Peer reviewed
Institut(e) Translational Metabolic Oncology (IDC-TMO)
POF Topic(s) 30203 - Molecular Targets and Therapies
Forschungsfeld(er) Radiation Sciences
PSP-Element(e) G-501000-001
PubMed ID 23862692
DOI 10.1667/RR3231.1
WOS ID WOS:000330990700001
Scopus ID 84882253955
Erfassungsdatum 2013-09-23
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