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Potential Influence of Diet on Bomb-Pulse Dating of Human Plaque Samples

Georgiadou, Elisavet LU ; Goncalves, Isabel LU ; Bertacchi Uvo, Cintia LU ; Nilsson, Jan LU ; Skog, Göran LU ; Mattsson, Sören LU ; Pedro, Luis M.; Fernandes e Fernandes, Jose and Stenström, Kristina LU (2013) 21st International Radiocarbon Conference, 2012 In Radiocarbon 55(2-3). p.874-884
Abstract
The radiocarbon concentration of different atherosclerotic plaque fragments obtained from 20 patients in Portugal, operated in 2000-2001, has been measured in order to define the year of plaque formation. A difference of 1.8-15 yr was observed, with the mean and median both 9 yr, between the bomb-pulse date estimated with the CALIBomb software and the operation date. Stable isotope (delta C-13 and delta N-15) analysis was also performed and provides insight to the diet of the subjects. The wide range of measured stable isotope values could indicate that the subjects' diet varied, including an abundance of marine foodstuffs. It could also mean a different isotope fractionation process for the different plaque fragments (cap, core, interface... (More)
The radiocarbon concentration of different atherosclerotic plaque fragments obtained from 20 patients in Portugal, operated in 2000-2001, has been measured in order to define the year of plaque formation. A difference of 1.8-15 yr was observed, with the mean and median both 9 yr, between the bomb-pulse date estimated with the CALIBomb software and the operation date. Stable isotope (delta C-13 and delta N-15) analysis was also performed and provides insight to the diet of the subjects. The wide range of measured stable isotope values could indicate that the subjects' diet varied, including an abundance of marine foodstuffs. It could also mean a different isotope fractionation process for the different plaque fragments (cap, core, interface to media) and a possible difference in tissues in which the various fragments are formed. Analysis of delta C-13 and delta N-15 values of each patient separately revealed subjects considered more influenced by marine foodstuffs consumption. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
bomb-pulse daitng, human plaque samples, stable isotopes
in
Radiocarbon
volume
55
issue
2-3
pages
874 - 884
publisher
Arizona Board of Regents (University of Arizona)
conference name
21st International Radiocarbon Conference, 2012
external identifiers
  • WOS:000325752100075
  • Scopus:84884362825
ISSN
0033-8222
DOI
10.2458/azu_js_rc.55.16259
project
MERGE
language
English
LU publication?
yes
id
865176cf-0973-42fb-ad45-b8a5fa92e1ce (old id 3460555)
date added to LUP
2013-11-29 11:04:18
date last changed
2016-10-13 05:11:20
@misc{865176cf-0973-42fb-ad45-b8a5fa92e1ce,
  abstract     = {The radiocarbon concentration of different atherosclerotic plaque fragments obtained from 20 patients in Portugal, operated in 2000-2001, has been measured in order to define the year of plaque formation. A difference of 1.8-15 yr was observed, with the mean and median both 9 yr, between the bomb-pulse date estimated with the CALIBomb software and the operation date. Stable isotope (delta C-13 and delta N-15) analysis was also performed and provides insight to the diet of the subjects. The wide range of measured stable isotope values could indicate that the subjects' diet varied, including an abundance of marine foodstuffs. It could also mean a different isotope fractionation process for the different plaque fragments (cap, core, interface to media) and a possible difference in tissues in which the various fragments are formed. Analysis of delta C-13 and delta N-15 values of each patient separately revealed subjects considered more influenced by marine foodstuffs consumption.},
  author       = {Georgiadou, Elisavet and Goncalves, Isabel and Bertacchi Uvo, Cintia and Nilsson, Jan and Skog, Göran and Mattsson, Sören and Pedro, Luis M. and Fernandes e Fernandes, Jose and Stenström, Kristina},
  issn         = {0033-8222},
  keyword      = {bomb-pulse daitng,human plaque samples,stable isotopes},
  language     = {eng},
  number       = {2-3},
  pages        = {874--884},
  publisher    = {ARRAY(0x87a9fd8)},
  series       = {Radiocarbon},
  title        = {Potential Influence of Diet on Bomb-Pulse Dating of Human Plaque Samples},
  url          = {http://dx.doi.org/10.2458/azu_js_rc.55.16259},
  volume       = {55},
  year         = {2013},
}