PMID- 20065672 OWN - NLM STAT- MEDLINE DCOM- 20100202 LR - 20211020 IS - 1538-5159 (Electronic) IS - 0017-9078 (Print) IS - 0017-9078 (Linking) VI - 98 IP - 2 DP - 2010 Feb TI - Current use and future needs of biodosimetry in studies of long-term health risk following radiation exposure. PG - 109-17 LID - 10.1097/HP.0b013e3181a86628 [doi] AB - Biodosimetry measurements can potentially be an important and integral part of the dosimetric methods used in long-term studies of health risk following radiation exposure. Such studies rely on accurate estimation of doses to the whole body or to specific organs of individuals in order to derive reliable estimates of cancer risk. However, dose estimates based on analytical dose reconstruction (i.e., models) or personnel monitoring measurements (i.e., film badges) can have substantial uncertainty. Biodosimetry can potentially reduce uncertainty in health risk studies by corroboration of model-based dose estimates or by using them to assess bias in dose models. While biodosimetry has begun to play a more significant role in long-term health risk studies, its use is still generally limited in that context due to one or more factors including inadequate limits of detection, large inter-individual variability of the signal measured, high per-sample cost, and invasiveness. Presently, the most suitable biodosimetry methods for epidemiologic studies are chromosome aberration frequencies from fluorescence in situ hybridization (FISH) of peripheral blood lymphocytes and electron paramagnetic resonance (EPR) measurements made on tooth enamel. Both types of measurements, however, are usually invasive and require biological samples that can be difficult to obtain. Moreover, doses derived from these methods are not always directly relevant to the tissues of interest. To increase the value of biodosimetry to epidemiologic studies, a number of issues need to be considered, including limits of detection, effects of inhomogenous exposure of the body, how to extrapolate from the tissue sampled to the tissues of interest, and how to adjust dosimetry models applied to large populations based on sparse biodosimetry measurements. The requirements of health risk studies suggest a set of characteristics that, if satisfied by new biodosimetry methods, would increase the overall usefulness of biodosimetry in determining radiation health risks. FAU - Simon, Steven L AU - Simon SL AD - Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA. ssimon@mail.nih.gov FAU - Bouville, Andre AU - Bouville A FAU - Kleinerman, Ruth AU - Kleinerman R LA - eng GR - Y03 CO5117/CO/NCI NIH HHS/United States GR - Y3-CO-5117/CO/NCI NIH HHS/United States GR - ImNIH/Intramural NIH HHS/United States GR - Y2-A1-5077/PHS HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, N.I.H., Intramural PL - United States TA - Health Phys JT - Health physics JID - 2985093R SB - IM MH - Biological Assay/*methods/*trends MH - *Body Burden MH - Environmental Exposure/*analysis MH - *Forecasting MH - Humans MH - Needs Assessment MH - Risk Assessment/methods MH - Sensitivity and Specificity MH - Technology Assessment, Biomedical MH - Whole-Body Counting/*methods/*trends PMC - PMC2806653 MID - NIHMS126843 EDAT- 2010/01/13 06:00 MHDA- 2010/02/03 06:00 PMCR- 2011/02/01 CRDT- 2010/01/13 06:00 PHST- 2010/01/13 06:00 [entrez] PHST- 2010/01/13 06:00 [pubmed] PHST- 2010/02/03 06:00 [medline] PHST- 2011/02/01 00:00 [pmc-release] AID - 00004032-201002000-00003 [pii] AID - 10.1097/HP.0b013e3181a86628 [doi] PST - ppublish SO - Health Phys. 2010 Feb;98(2):109-17. doi: 10.1097/HP.0b013e3181a86628.