Reconstructing infant mortality in Iberian Iron Age populations from tooth histology

The Neonatal Line (NNL) of the tooth serves as a unique identifier, allowing us to distinguish whether a child survived birth. This line is essential for assessing the age at death of infants from skeletal remains found in archaeological contexts. Our primary objective is to accurately determine the...

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Autores: Martirosyan, Ani|||0000-0001-6948-8487, Sandoval-Ávila, Carolina|||0000-0001-7678-1390, Irurita Olivares, Javier|||0000-0003-1676-9773, Juanhuix, Judith|||0000-0003-3728-8215, Molist, Núria|||0000-0003-2048-6987, Mestres Santacreu, Imma|||0000-0003-4527-2678, Durán, Montserrat|||0000-0002-8098-8156, Alonso Martínez, Natàlia|||0000-0003-4081-0262, Santos, Cristina|||0000-0002-7014-8014, Malgosa Morera, Assumpció|||0000-0003-1723-3671, Molera, Judith|||0000-0003-3116-0456, Jordana Comín, Xavier|||0000-0002-6016-6630
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:304473
Acceso en línea:https://ddd.uab.cat/record/304473
https://dx.doi.org/urn:doi:10.1016/j.jas.2024.106088
Access Level:acceso abierto
Palabra clave:Crown formation time
Deciduous teeth
Iberian culture
Neonatal line
Synchrotron X-ray fluorescence
SDG 3 - Good Health and Well-being
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spelling Reconstructing infant mortality in Iberian Iron Age populations from tooth histologyMartirosyan, Ani|||0000-0001-6948-8487Sandoval-Ávila, Carolina|||0000-0001-7678-1390Irurita Olivares, Javier|||0000-0003-1676-9773Juanhuix, Judith|||0000-0003-3728-8215Molist, Núria|||0000-0003-2048-6987Mestres Santacreu, Imma|||0000-0003-4527-2678Durán, Montserrat|||0000-0002-8098-8156Alonso Martínez, Natàlia|||0000-0003-4081-0262Santos, Cristina|||0000-0002-7014-8014Malgosa Morera, Assumpció|||0000-0003-1723-3671Molera, Judith|||0000-0003-3116-0456Jordana Comín, Xavier|||0000-0002-6016-6630Crown formation timeDeciduous teethIberian cultureNeonatal lineSynchrotron X-ray fluorescenceSDG 3 - Good Health and Well-beingThe Neonatal Line (NNL) of the tooth serves as a unique identifier, allowing us to distinguish whether a child survived birth. This line is essential for assessing the age at death of infants from skeletal remains found in archaeological contexts. Our primary objective is to accurately determine the age of infant intramural inhumations from the Iberian Iron Age (8th-1st centuries BC) by analyzing histological sections of tooth germs. Due to their fragility and high susceptibility to taphonomic factors, these samples are challenging to handle. By accurately assessing their age, we aim to classify individuals into various stages of infant mortality, which will help reconstruct infant mortality patterns in these populations. We analyze unerupted and still-forming crown deciduous teeth from 45 infant burials. By calculating Crown Formation Time (CFT) and identifying the NNL, we determine both gestational and chronological ages. We further validate the reliability of NNL identification through Synchrotron X-ray Fluorescence (SXRF) elemental analysis (Ca, Zn, Cu) on two contemporary and two archaeological samples. Our histological study reveals the chronological age of 38 infants from Iberian settlements, ranging from the 30th week of gestation to the 2nd postnatal month. The age distribution shows an attritional mortality pattern, with nearly half experiencing perinatal mortality, including preterm births. These findings support the hypothesis that mortality was primarily attributed to natural causes. Our research enhances the understanding of infant life history events in prehistory by combining histological analysis of tooth NNL and CFT, highlighting the technique's potential and limitations. 22024-01-0120242024-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/304473https://dx.doi.org/urn:doi:10.1016/j.jas.2024.106088reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengAgencia Estatal de Investigación https://doi.org/10.13039/501100011033 PGC2018-096666-B-I00Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2021/SGR-00186open accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original.https://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:3044732026-06-06T12:50:31Z
dc.title.none.fl_str_mv Reconstructing infant mortality in Iberian Iron Age populations from tooth histology
title Reconstructing infant mortality in Iberian Iron Age populations from tooth histology
spellingShingle Reconstructing infant mortality in Iberian Iron Age populations from tooth histology
Martirosyan, Ani|||0000-0001-6948-8487
Crown formation time
Deciduous teeth
Iberian culture
Neonatal line
Synchrotron X-ray fluorescence
SDG 3 - Good Health and Well-being
title_short Reconstructing infant mortality in Iberian Iron Age populations from tooth histology
title_full Reconstructing infant mortality in Iberian Iron Age populations from tooth histology
title_fullStr Reconstructing infant mortality in Iberian Iron Age populations from tooth histology
title_full_unstemmed Reconstructing infant mortality in Iberian Iron Age populations from tooth histology
title_sort Reconstructing infant mortality in Iberian Iron Age populations from tooth histology
dc.creator.none.fl_str_mv Martirosyan, Ani|||0000-0001-6948-8487
Sandoval-Ávila, Carolina|||0000-0001-7678-1390
Irurita Olivares, Javier|||0000-0003-1676-9773
Juanhuix, Judith|||0000-0003-3728-8215
Molist, Núria|||0000-0003-2048-6987
Mestres Santacreu, Imma|||0000-0003-4527-2678
Durán, Montserrat|||0000-0002-8098-8156
Alonso Martínez, Natàlia|||0000-0003-4081-0262
Santos, Cristina|||0000-0002-7014-8014
Malgosa Morera, Assumpció|||0000-0003-1723-3671
Molera, Judith|||0000-0003-3116-0456
Jordana Comín, Xavier|||0000-0002-6016-6630
author Martirosyan, Ani|||0000-0001-6948-8487
author_facet Martirosyan, Ani|||0000-0001-6948-8487
Sandoval-Ávila, Carolina|||0000-0001-7678-1390
Irurita Olivares, Javier|||0000-0003-1676-9773
Juanhuix, Judith|||0000-0003-3728-8215
Molist, Núria|||0000-0003-2048-6987
Mestres Santacreu, Imma|||0000-0003-4527-2678
Durán, Montserrat|||0000-0002-8098-8156
Alonso Martínez, Natàlia|||0000-0003-4081-0262
Santos, Cristina|||0000-0002-7014-8014
Malgosa Morera, Assumpció|||0000-0003-1723-3671
Molera, Judith|||0000-0003-3116-0456
Jordana Comín, Xavier|||0000-0002-6016-6630
author_role author
author2 Sandoval-Ávila, Carolina|||0000-0001-7678-1390
Irurita Olivares, Javier|||0000-0003-1676-9773
Juanhuix, Judith|||0000-0003-3728-8215
Molist, Núria|||0000-0003-2048-6987
Mestres Santacreu, Imma|||0000-0003-4527-2678
Durán, Montserrat|||0000-0002-8098-8156
Alonso Martínez, Natàlia|||0000-0003-4081-0262
Santos, Cristina|||0000-0002-7014-8014
Malgosa Morera, Assumpció|||0000-0003-1723-3671
Molera, Judith|||0000-0003-3116-0456
Jordana Comín, Xavier|||0000-0002-6016-6630
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Crown formation time
Deciduous teeth
Iberian culture
Neonatal line
Synchrotron X-ray fluorescence
SDG 3 - Good Health and Well-being
topic Crown formation time
Deciduous teeth
Iberian culture
Neonatal line
Synchrotron X-ray fluorescence
SDG 3 - Good Health and Well-being
description The Neonatal Line (NNL) of the tooth serves as a unique identifier, allowing us to distinguish whether a child survived birth. This line is essential for assessing the age at death of infants from skeletal remains found in archaeological contexts. Our primary objective is to accurately determine the age of infant intramural inhumations from the Iberian Iron Age (8th-1st centuries BC) by analyzing histological sections of tooth germs. Due to their fragility and high susceptibility to taphonomic factors, these samples are challenging to handle. By accurately assessing their age, we aim to classify individuals into various stages of infant mortality, which will help reconstruct infant mortality patterns in these populations. We analyze unerupted and still-forming crown deciduous teeth from 45 infant burials. By calculating Crown Formation Time (CFT) and identifying the NNL, we determine both gestational and chronological ages. We further validate the reliability of NNL identification through Synchrotron X-ray Fluorescence (SXRF) elemental analysis (Ca, Zn, Cu) on two contemporary and two archaeological samples. Our histological study reveals the chronological age of 38 infants from Iberian settlements, ranging from the 30th week of gestation to the 2nd postnatal month. The age distribution shows an attritional mortality pattern, with nearly half experiencing perinatal mortality, including preterm births. These findings support the hypothesis that mortality was primarily attributed to natural causes. Our research enhances the understanding of infant life history events in prehistory by combining histological analysis of tooth NNL and CFT, highlighting the technique's potential and limitations.
publishDate 2024
dc.date.none.fl_str_mv 2
2024-01-01
2024
2024-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/304473
https://dx.doi.org/urn:doi:10.1016/j.jas.2024.106088
url https://ddd.uab.cat/record/304473
https://dx.doi.org/urn:doi:10.1016/j.jas.2024.106088
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 PGC2018-096666-B-I00
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2021/SGR-00186
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-nc/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
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