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dc.contributor.authorChidimuro, Blessing
dc.contributor.authorMundorff, Amy
dc.contributor.authorSpeller, Camilla
dc.contributor.authorRadini, Anita
dc.contributor.authorBoudreault, Noémie
dc.contributor.authorLucas, Mary
dc.contributor.authorHolst, Malin
dc.contributor.authorLamb, Angela
dc.contributor.authorCollins, Matthew
dc.contributor.authorAlexander, Michelle
dc.date.accessioned2022-03-31T18:00:53Z
dc.date.available2022-03-31T18:00:53Z
dc.date.issued2022-06-15
dc.date.submitted2021-12-03
dc.identifier.issn0951-4198
dc.identifier.otherrcm9286
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/335603
dc.descriptionFunder: University of Leicester; Id: http://dx.doi.org/10.13039/501100000738
dc.descriptionFunder: University of Tennessee; Id: http://dx.doi.org/10.13039/100007135
dc.description.abstractRATIONALE: Dental calculus (mineralised dental plaque) is composed primarily of hydroxyapatite. We hypothesise that the carbonate component of dental calculus will reflect the isotopic composition of ingested simple carbohydrates. Therefore, dental calculus carbonates may be an indicator for sugar consumption, and an alternative to bone carbonate in isotopic palaeodiet studies. METHODS: We utilised Fourier transform infrared attenuated total reflectance analysis to characterise the composition and crystallisation of bone and dental calculus before isotope analysis of carbonate. Using a Sercon 20-22 mass spectrometer coupled with a Sercon GSL sample preparation system and an IsoPrime 100 dual inlet mass spectrometer plus Multiprep device to measure carbon, we tested the potential of dental calculus carbonate to identify C4 resources in diet through analysis of δ13 C values in paired bone, calculus and teeth mineral samples. RESULTS: The modern population shows higher δ13 C values in all three tissue carbonates compared to both archaeological populations. Clear differences in dental calculus δ13 C values are observed between the modern and archaeological individuals suggesting potential for utilising dental calculus in isotope palaeodiet studies. The offset between dental calculus and either bone or enamel carbonate δ13 C values is large and consistent in direction, with no consistent offset between the δ13 C values for the three tissues per individual. CONCLUSIONS: Our results support dental calculus carbonate as a new biomaterial to identify C4 sugar through isotope analysis. Greater carbon fractionation in the mouth is likely due to the complex formation of dental calculus as a mineralized biofilm, which results in consistently high δ13 C values compared to bone and enamel.
dc.languageen
dc.publisherWiley
dc.subjectRESEARCH ARTICLE
dc.subjectRESEARCH ARTICLES
dc.titleIsotope analysis of human dental calculus δ13 CO3 2- : Investigating a potential new proxy for sugar consumption.
dc.typeArticle
dc.date.updated2022-03-31T18:00:53Z
prism.issueIdentifier11
prism.publicationNameRapid Commun Mass Spectrom
prism.volume36
dc.identifier.doi10.17863/CAM.83034
dcterms.dateAccepted2022-03-01
rioxxterms.versionofrecord10.1002/rcm.9286
rioxxterms.versionAO
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidChidimuro, Blessing [0000-0002-3513-715X]
dc.contributor.orcidMundorff, Amy [0000-0003-4008-4969]
dc.contributor.orcidSpeller, Camilla [0000-0001-7128-9903]
dc.contributor.orcidRadini, Anita [0000-0002-2099-2639]
dc.contributor.orcidHolst, Malin [0000-0002-4183-7574]
dc.contributor.orcidLamb, Angela [0000-0003-1809-4327]
dc.contributor.orcidCollins, Matthew [0000-0003-4226-5501]
dc.contributor.orcidAlexander, Michelle [0000-0001-8000-3639]
dc.identifier.eissn1097-0231
pubs.funder-project-idArts and Humanities Research Council (AH/L503848/1)
pubs.funder-project-idNERC Isotope Geoscience Facilities Steering Committee (IP‐1801‐0618)
pubs.funder-project-idUniversity of York (L503848)
cam.issuedOnline2022-03-25


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