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dc.contributor.authorCanterbury, J. A.
dc.contributor.authorBeck, Chase W.
dc.contributor.authorDozier, Crystal A.
dc.contributor.authorHoffmeister, K.
dc.contributor.authorMagaro, J.
dc.contributor.authorPerrotti, Angelina G.
dc.contributor.authorWright, Lori E.
dc.identifier.citationCanterbury, J. A.; Beck, Chase W.; Dozier, Crystal A.; Hoffmeister, K.; Magaro, J.; Perrotti, Angelina G.; Wright, Lori E. 2020. Bariatric surgery as a proxy for nutritional stress in stable isotope investigations of archaeological populations. Journal of Archaeological Science: Reports, vol. 30:art. no. 102196en_US
dc.descriptionClick on the DOI link to access the article (may not be free).en_US
dc.description.abstractPathophysiological fractionation of stable nitrogen and carbon isotopes during periods of nutritional stress has the potential to bias investigations of ancient diets using such methods, particularly when no corroborating evidence of stress is apparent. More stable isotope analyses of human proxies for nutritional stress are therefore necessary to resolve this issue of diet vs. stress. We show here that individuals undergoing bariatric surgery are an ideal proxy for studying pathophysiological fractionation among humans. Using sequential samples of hair from two individuals, we construct an isotopic timeline demonstrating a 1‰ enrichment in δ15N values immediately following bariatric surgery, reflecting the catabolism of body tissues. Stable carbon isotopes show little systematic change with tissue catabolism.en_US
dc.description.sponsorshipCornerstone Faculty Fellowship awarded to Dr. Lori E. Wright by the College of Liberal Arts, Texas A&M University. IRB2014-0274D.en_US
dc.relation.ispartofseriesJournal of Archaeological Science: Reports;v.30:art. no.102196
dc.subjectBariatric surgeryen_US
dc.subjectStable isotope analysisen_US
dc.subjectNutritional stressen_US
dc.titleBariatric surgery as a proxy for nutritional stress in stable isotope investigations of archaeological populationsen_US
dc.rights.holder© 2020 Elsevier Ltd. All rights reserveden_US

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