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Cerrito P, Cherian BE, Hu B, Bromage TG. Population differences in dental cementum growth rates: Implications for using cementum thickness as a method for age estimation. AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY 2024:e24985. [PMID: 38864098 DOI: 10.1002/ajpa.24985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/24/2024] [Accepted: 06/02/2024] [Indexed: 06/13/2024]
Abstract
OBJECTIVES Age at death estimation is a key element to many research questions in biological anthropology, archeology, and forensic science. Dental cementum is a tissue of choice for the estimation of age at death in adult individuals as it continues deposition for the entirety of an individual's life. Previous works have devised regression formulas correlating cementum thickness to age at death. However, interpopulation variances are unknown, and it is therefore not clear whether regressions based on a single population are applicable to individuals with different ancestries. MATERIALS AND METHODS Here, we use a sample (n = 52) of teeth from individuals with known age at tooth extraction/death of European, African, and East Asian ancestry to assess whether there are interpopulations differences in cementum growth rate. We measured growth rate in four different areas (2nd and 5th decile of both the lingual and buccal aspect of the root) of each tooth and used nonparametric tests to evaluate population differences in growth rate between homologous regions of the teeth. RESULTS The results of the analyses show that, even after controlling for tooth size, individuals of European ancestry have significantly lower growth rates than those of both African and East Asian ancestry across all four tooth areas. DISCUSSION These results call into question the applicability of the regression formulas derived from European ancestry individuals to individuals of other ancestries.
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Affiliation(s)
- Paola Cerrito
- Department of Anthropology, New York University, New York, New York, USA
- New York Consortium in Evolutionary Primatology, New York, New York, USA
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
- Department of Evolutionary Anthropology, University of Zürich, Zürich, Switzerland
| | - Blessy E Cherian
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Bin Hu
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
| | - Timothy G Bromage
- New York Consortium in Evolutionary Primatology, New York, New York, USA
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, New York, USA
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Zazvonilová E, Brzobohatá H, Frolík J, Velemínský P, Brůžek J. Using cementochronology to assess the seasonality of catastrophic events in medieval mass graves (Kutná Hora-Sedlec, Czechia, 14th century): Preliminary results. PLoS One 2023; 18:e0295757. [PMID: 38091327 PMCID: PMC10718420 DOI: 10.1371/journal.pone.0295757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 11/28/2023] [Indexed: 12/18/2023] Open
Abstract
While season-of-death estimation using cementochronology is routine in archaeozoology, its use is much less frequent in bioarchaeology. Based on the character of the outermost increment (bright or dark), two seasons (spring/summer, autumn/winter) can be distinguished. Although many studies mention its potential and possible use in forensic anthropology or bioarchaeology, few exist with estimation results. This study aimed to apply cementochronology-a histological method based on counting and assessing regular circa-annual acellular cementum increments-to 42 individuals from medieval mass graves from Kutná Hora-Sedlec (Czechia, 14th century) to estimate the season-of-death. The mass graves belong to two stratigraphically distinct groups; written and archaeological sources relate them to two catastrophic events (the famine of 1318 and the plague epidemic of 1348-1350). Using cementochronology, we distinguished two distinct seasons corresponding to the two groups of graves, with individuals from the first group dying predominantly in spring/summer, while those from the second group died in autumn/winter. Taking into account the typical seasonal dynamics of epidemics, the results would be more in line with written sources. However, during the evaluation, we faced difficulties identifying the outermost increment and detecting the dark (thinner) increment; we recommend including only young and middle-aged adults in future studies, due to the difficulty of evaluation, and to consider the readability of the tissue (often affected by diagenesis). In conclusion, cementochronology has potential in the context of estimating the season-of-death, but the technical possibilities for enhancing the outermost increment need to be addressed, and the amount of data analysed expanded.
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Affiliation(s)
- Eliška Zazvonilová
- Institute of Archaeology of the Czech Academy of Sciences, Prague 1, Czech Republic
- Faculty of Science, Department of Anthropology and Human Genetics, Charles University, Prague 2, Czech Republic
| | - Hana Brzobohatá
- Institute of Archaeology of the Czech Academy of Sciences, Prague 1, Czech Republic
| | - Jan Frolík
- Institute of Archaeology of the Czech Academy of Sciences, Prague 1, Czech Republic
| | - Petr Velemínský
- Department of Anthropology, National Museum, Prague 1, Czech Republic
| | - Jaroslav Brůžek
- Faculty of Science, Department of Anthropology and Human Genetics, Charles University, Prague 2, Czech Republic
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Dean MC, Garrevoet J, Van Malderen SJM, Santos F, Mirazón Lahr M, Foley R, Le Cabec A. The Distribution and Biogenic Origins of Zinc in the Mineralised Tooth Tissues of Modern and Fossil Hominoids: Implications for Life History, Diet and Taphonomy. BIOLOGY 2023; 12:1455. [PMID: 38132281 PMCID: PMC10740576 DOI: 10.3390/biology12121455] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/01/2023] [Accepted: 11/12/2023] [Indexed: 12/23/2023]
Abstract
Zinc is incorporated into enamel, dentine and cementum during tooth growth. This work aimed to distinguish between the processes underlying Zn incorporation and Zn distribution. These include different mineralisation processes, the physiological events around birth, Zn ingestion with diet, exposure to the oral environment during life and diagenetic changes to fossil teeth post-mortem. Synchrotron X-ray Fluorescence (SXRF) was used to map zinc distribution across longitudinal polished ground sections of both deciduous and permanent modern human, great ape and fossil hominoid teeth. Higher resolution fluorescence intensity maps were used to image Zn in surface enamel, secondary dentine and cementum, and at the neonatal line (NNL) and enamel-dentine-junction (EDJ) in deciduous teeth. Secondary dentine was consistently Zn-rich, but the highest concentrations of Zn (range 197-1743 ppm) were found in cuspal, mid-lateral and cervical surface enamel and were similar in unerupted teeth never exposed to the oral environment. Zinc was identified at the NNL and EDJ in both modern and fossil deciduous teeth. In fossil specimens, diagenetic changes were identified in various trace element distributions but only demineralisation appeared to markedly alter Zn distribution. Zinc appears to be tenacious and stable in fossil tooth tissues, especially in enamel, over millions of years.
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Affiliation(s)
- M. Christopher Dean
- Centre for Human Evolution Research, Natural History Museum, Cromwell Road, London SW7 5BD, UK
- Department of Cell and Developmental Biology, University College London, Gower Street, London WC1E 6BT, UK
| | - Jan Garrevoet
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany; (J.G.); (S.J.M.V.M.)
| | - Stijn J. M. Van Malderen
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany; (J.G.); (S.J.M.V.M.)
| | - Frédéric Santos
- Univ. Bordeaux, CNRS, Ministère de la Culture, PACEA, UMR 5199, F-33600 Pessac, France; (F.S.); (A.L.C.)
| | - Marta Mirazón Lahr
- Leverhulme Centre for Human Evolutionary Studies, Department of Archaeology, University of Cambridge, Fitzwilliam Street, Cambridge CB2 1QH, UK; (M.M.L.); (R.F.)
| | - Robert Foley
- Leverhulme Centre for Human Evolutionary Studies, Department of Archaeology, University of Cambridge, Fitzwilliam Street, Cambridge CB2 1QH, UK; (M.M.L.); (R.F.)
| | - Adeline Le Cabec
- Univ. Bordeaux, CNRS, Ministère de la Culture, PACEA, UMR 5199, F-33600 Pessac, France; (F.S.); (A.L.C.)
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Besnard C, Marie A, Sasidharan S, Harper RA, Shelton RM, Landini G, Korsunsky AM. Synchrotron X-ray Studies of the Structural and Functional Hierarchies in Mineralised Human Dental Enamel: A State-of-the-Art Review. Dent J (Basel) 2023; 11:98. [PMID: 37185477 PMCID: PMC10137518 DOI: 10.3390/dj11040098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/19/2023] [Accepted: 03/28/2023] [Indexed: 05/17/2023] Open
Abstract
Hard dental tissues possess a complex hierarchical structure that is particularly evident in enamel, the most mineralised substance in the human body. Its complex and interlinked organisation at the Ångstrom (crystal lattice), nano-, micro-, and macro-scales is the result of evolutionary optimisation for mechanical and functional performance: hardness and stiffness, fracture toughness, thermal, and chemical resistance. Understanding the physical-chemical-structural relationships at each scale requires the application of appropriately sensitive and resolving probes. Synchrotron X-ray techniques offer the possibility to progress significantly beyond the capabilities of conventional laboratory instruments, i.e., X-ray diffractometers, and electron and atomic force microscopes. The last few decades have witnessed the accumulation of results obtained from X-ray scattering (diffraction), spectroscopy (including polarisation analysis), and imaging (including ptychography and tomography). The current article presents a multi-disciplinary review of nearly 40 years of discoveries and advancements, primarily pertaining to the study of enamel and its demineralisation (caries), but also linked to the investigations of other mineralised tissues such as dentine, bone, etc. The modelling approaches informed by these observations are also overviewed. The strategic aim of the present review was to identify and evaluate prospective avenues for analysing dental tissues and developing treatments and prophylaxis for improved dental health.
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Affiliation(s)
- Cyril Besnard
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, Oxfordshire, UK
| | - Ali Marie
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, Oxfordshire, UK
| | - Sisini Sasidharan
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, Oxfordshire, UK
| | - Robert A. Harper
- School of Dentistry, University of Birmingham, 5 Mill Pool Way, Edgbaston, Birmingham B5 7EG, West Midlands, UK
| | - Richard M. Shelton
- School of Dentistry, University of Birmingham, 5 Mill Pool Way, Edgbaston, Birmingham B5 7EG, West Midlands, UK
| | - Gabriel Landini
- School of Dentistry, University of Birmingham, 5 Mill Pool Way, Edgbaston, Birmingham B5 7EG, West Midlands, UK
| | - Alexander M. Korsunsky
- MBLEM, Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, Oxfordshire, UK
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Insights into the aetiologies of hypercementosis: A systematic review and a scoring system. Arch Oral Biol 2023; 146:105599. [PMID: 36495812 DOI: 10.1016/j.archoralbio.2022.105599] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 12/11/2022]
Abstract
OBJECTIVES This paper aims to better define hypercementosis, investigate its described potential aetiologies, and determine whether there are different patterns of cementum apposition and if they are a function of their supposed aetiology. DESIGN A literature review was undertaken using the Medline, DOSS, Scopus and Cochrane Library electronic databases. Two co-authors selected the published works independently, extracted the data in accordance with the PRISMA statement. RESULTS Among 546 articles, 75 articles were finally selected. Eight different supposed aetiologies were identified: (1) intensive masticatory effort, (2) systemic disease, (3) carious lesion and apical periodontitis, (4) impaction, (5) periodontal disease, (6) concrescence, (7) super-eruption, and (8) drugs. Some of these aetiologies can be combined in the same tooth. Hypercementosis manifestations are various in nature and extent with different patterns that may be aetiology-specific. To improve the description and associated consistency in the characterisation of hypercementosis, in this review but also in future studies, we propose a new qualitative scoring system to quickly characterise hypercementosis and determine its most relevant aetiology. CONCLUSIONS This systematic review demonstrates that hypercementosis is a complex and not yet well-defined condition. Some forms of apposition are specific to a given aetiology. The hypercementosis characterisation may contribute to document the oral condition and/or the individuals masticatory activity.
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Dental age estimation by cementum incremental lines counting: A systematic review and meta-analysis. Forensic Sci Int 2022; 341:111492. [PMID: 36240671 DOI: 10.1016/j.forsciint.2022.111492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/22/2022] [Accepted: 10/03/2022] [Indexed: 12/30/2022]
Abstract
The estimation of dental age by cementum incremental lines (CIL) is a widely investigated method; however, its reliability remains uncertain. The aim of this article was to assess whether CIL are a reliable biological indicator for estimating dental age. A search was performed in Embase, LILACS, PubMed/MEDLINE, SciELO, Scopus and Web of Science databases using a combination of terms related to the topic. Two independent reviewers used inclusion and exclusion criteria so that relevant articles were selected and evaluated. For the risk of bias analysis, a checklist from The Joanna Briggs Institute was applied. For the meta-analysis, Pearson's Correlation Coefficient between chronological age and estimated age was considered as an effect measure. The heterogeneity of studies was assessed using the Cochran's Q statistical test (p < 0.05), and the publication bias using the asymmetry of the Funnel plot and Egger's linear regression test (p < 0.05). Most selected articles had low risk of bias. Although not all studies were included in the meta-analysis, it demonstrated the presence of high heterogeneity among them. Despite this, the synthesized result indicated that the age estimated by CIL count has a high correlation with chronological age. Furthermore, the graphical analysis suggested the absence of publication bias, which was confirmed by the Egger's linear regression test. Therefore, there is scientific evidence that CIL are reliable in estimating dental age, but the method requires a standardized protocol to be followed, as well as the rigorous choice of the root area to be analyzed.
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Eliška Z, Petr V, Alena Č, Alžběta D, Jaroslav B. Protocol matters: A need for standardized procedure in cementochronology. Forensic Sci Int 2022; 340:111439. [DOI: 10.1016/j.forsciint.2022.111439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 08/11/2022] [Accepted: 08/18/2022] [Indexed: 11/26/2022]
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Migga A, Schulz G, Rodgers G, Osterwalder M, Tanner C, Blank H, Jerjen I, Salmon P, Twengström W, Scheel M, Weitkamp T, Schlepütz CM, Bolten JS, Huwyler J, Hotz G, Madduri S, Müller B. Comparative hard x-ray tomography for virtual histology of zebrafish larva, human tooth cementum, and porcine nerve. J Med Imaging (Bellingham) 2022; 9:031507. [PMID: 35372637 PMCID: PMC8968075 DOI: 10.1117/1.jmi.9.3.031507] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 03/08/2022] [Indexed: 07/26/2023] Open
Abstract
Purpose: Synchrotron radiation-based tomography yields microanatomical features in human and animal tissues without physical slicing. Recent advances in instrumentation have made laboratory-based phase tomography feasible. We compared the performance of three cutting-edge laboratory systems benchmarked by synchrotron radiation-based tomography for three specimens. As an additional criterion, the user-friendliness of the three microtomography systems was considered. Approach: The three tomography systems-SkyScan 2214 (Bruker-microCT, Kontich, Belgium), Exciscope prototype (Stockholm, Sweden), and Xradia 620 Versa (Zeiss, Oberkochen, Germany)-were given 36 h to measure three medically relevant specimens, namely, zebrafish larva, archaeological human tooth, and porcine nerve. The obtained datasets were registered to the benchmark synchrotron radiation-based tomography from the same specimens and selected ones to the SkyScan 1275 and phoenix nanotom m® laboratory systems to characterize development over the last decade. Results: Next-generation laboratory-based microtomography almost reached the quality achieved by synchrotron-radiation facilities with respect to spatial and density resolution, as indicated by the visualization of the medically relevant microanatomical features. The SkyScan 2214 system and the Exciscope prototype demonstrated the complementarity of phase information by imaging the eyes of the zebrafish larva. The 3 - μ m thin annual layers in the tooth cementum were identified using Xradia 620 Versa. Conclusions: SkyScan 2214 was the simplest system and was well-suited to visualizing the wealth of anatomical features in the zebrafish larva. Data from the Exciscope prototype with the high photon flux from the liquid metal source showed the spiral nature of the myelin sheaths in the porcine nerve. Xradia 620 Versa, with detector optics as typically installed for synchrotron tomography beamlines, enabled the three-dimensional visualization of the zebrafish larva with comparable quality to the synchrotron data and the annual layers in the tooth cementum.
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Affiliation(s)
- Alexandra Migga
- University of Basel, Biomaterials Science Center, Department of Biomedical Engineering, Allschwil, Switzerland
- University of Basel, Biomaterials Science Center, Department of Clinical Research, Basel, Switzerland
| | - Georg Schulz
- University of Basel, Biomaterials Science Center, Department of Biomedical Engineering, Allschwil, Switzerland
- University of Basel, Core Facility Micro- and Nanotomography, Department of Biomedical Engineering, Allschwil, Switzerland
| | - Griffin Rodgers
- University of Basel, Biomaterials Science Center, Department of Biomedical Engineering, Allschwil, Switzerland
- University of Basel, Biomaterials Science Center, Department of Clinical Research, Basel, Switzerland
| | - Melissa Osterwalder
- University of Basel, Biomaterials Science Center, Department of Biomedical Engineering, Allschwil, Switzerland
- University of Basel, Biomaterials Science Center, Department of Clinical Research, Basel, Switzerland
| | - Christine Tanner
- University of Basel, Biomaterials Science Center, Department of Biomedical Engineering, Allschwil, Switzerland
- University of Basel, Biomaterials Science Center, Department of Clinical Research, Basel, Switzerland
| | | | | | | | | | | | | | | | - Jan S. Bolten
- University of Basel, Pharmaceutical Technology, Department of Pharmaceutical Sciences, Basel, Switzerland
| | - Jörg Huwyler
- University of Basel, Pharmaceutical Technology, Department of Pharmaceutical Sciences, Basel, Switzerland
| | - Gerhard Hotz
- Natural History Museum of Basel, Anthropological Collection, Basel, Switzerland
- University of Basel, Integrative Prehistory and Archaeological Science, Basel, Switzerland
| | - Srinivas Madduri
- University of Basel, Biomaterials Science Center, Department of Biomedical Engineering, Allschwil, Switzerland
- University of Geneva, Department of Surgery, Geneva, Switzerland
- University Hospital Basel, Department of Plastic, Reconstructive, Aesthetic and Hand Surgery, Basel, Switzerland
| | - Bert Müller
- University of Basel, Biomaterials Science Center, Department of Biomedical Engineering, Allschwil, Switzerland
- University of Basel, Biomaterials Science Center, Department of Clinical Research, Basel, Switzerland
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Hinrichs C, Nicklisch N, Mardare CC, Orechovski B, Hassel AW, Kleber C, Alt KW. Incremental lines in human acellular tooth cementum - new insights by SEM analysis. Ann Anat 2022; 243:151933. [PMID: 35307556 DOI: 10.1016/j.aanat.2022.151933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 02/05/2022] [Accepted: 03/07/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Tooth cementum covers the surface of the root dentine and is produced and laid down in thin layers continuously throughout life. Functionally, different types of tooth cementum can be distinguished, which can be roughly divided into acellular (primary cementum) and cellular (secondary cementum) forms. One main type is acellular extrinsic fibre cementum (AEFC), which covers the cervical and middle third of the root. Light microscopic examinations of transverse sections of AEFC show lamellar patterns of alternating light and dark lines called growth or incremental lines. Following mammalian research, a seasonal rhythm of incremental line formation is also assumed in humans. Previous attempts at visualising incremental lines in the AEFC by scanning electron microscopy (SEM) were not particularly successful. The aim of the present study was to detect incremental lines in the AEFC and to analyse their underlying structure by SEM. METHODS For this purpose, non-embedded and resin-embedded transverse and longitudinal sections of three single-rooted teeth obtained from different patients were investigated. The thin sections were not pre-treated (e.g. by etching, grinding or coating). RESULTS Lamellar structures, which could be identified as incremental lines, were detectable in both transverse and longitudinal sections, with transverse orientation in the cross-section and longitudinal orientation in the longitudinal section. The lamellar pattern was created by broad fibre-rich layers alternating with narrow fibre-poor layers. The orientation of the collagen fibres changed from layer to layer from transverse to radial direction. The visibility of the layered structure discovered varied significantly. CONCLUSIONS The study demonstrate that it is possible, in principle, to detect incremental lines in AEFC and to identify their basic structure using SEM. Our results suggest that the density and orientation of the fibres play an essential role in the formation of incremental lines. Functional aspects seem to be of particular importance.
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Affiliation(s)
| | - Nicole Nicklisch
- Danube Private University, Steiner Landstrasse 124, 3500 Krems-Stein, Austria.
| | - Cezarina C Mardare
- Danube Private University, Steiner Landstrasse 124, 3500 Krems-Stein, Austria; Institute of Chemical Technology of Inorganic Materials, Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria.
| | - Bernhard Orechovski
- Danube Private University, Steiner Landstrasse 124, 3500 Krems-Stein, Austria.
| | - Achim W Hassel
- Danube Private University, Steiner Landstrasse 124, 3500 Krems-Stein, Austria; Institute of Chemical Technology of Inorganic Materials, Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria.
| | - Christoph Kleber
- Danube Private University, Steiner Landstrasse 124, 3500 Krems-Stein, Austria; Institute of Chemical Technology of Inorganic Materials, Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria.
| | - Kurt W Alt
- Danube Private University, Steiner Landstrasse 124, 3500 Krems-Stein, Austria; Institute of Prehistory and Archaeological Science, University of Basel, Spalenring 145, 4055 Basel; Switzerland.
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Cerrito P, Nava A, Radovčić D, Borić D, Cerrito L, Basdeo T, Ruggiero G, Frayer DW, Kao AP, Bondioli L, Mancini L, Bromage TG. Dental cementum virtual histology of Neanderthal teeth from Krapina (Croatia, 130-120 kyr): an informed estimate of age, sex and adult stressors. J R Soc Interface 2022; 19:20210820. [PMID: 35193386 PMCID: PMC8864341 DOI: 10.1098/rsif.2021.0820] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/27/2022] [Indexed: 11/12/2022] Open
Abstract
The evolution of modern human reproductive scheduling is an aspect of our life history that remains vastly uncomprehended. The present work aims to address this gap by validating a non-destructive cutting-edge methodology to infer adult life-history events on modern teeth with known life history and then applying it to fossil specimens. We use phase-contrast synchrotron X-ray microtomography to visualize the dental cementum of 21 specimens: nine contemporary humans; 10 Neanderthals from Krapina (Croatia, 130-120 kyr); one Neolithic Homo sapiens from Ajmana (Serbia); and one Mesolithic H. sapiens from Vlasac (Serbia). We were able to correctly detect and time (root mean square error = 2.1 years; R2 = 0.98) all reproductive (menarche, parturition, menopause) and other physiologically impactful events in the modern sample. Nonetheless, we could not distinguish between the causes of the events detected. For the fossil specimens, we estimated age at death and age at occurrence of biologically significant events. Finally, we performed an exploratory analysis regarding possible sexual dimorphism in dental cementum microstructure, which allowed us to correctly infer the sex of the Neolithic specimen, for which the true value was known via DNA analysis.
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Affiliation(s)
- Paola Cerrito
- Department of Anthropology, New York University, New York, NY, USA
- New York Consortium in Evolutionary Primatology, New York, NY, USA
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, USA
| | - Alessia Nava
- Skeletal Biology Research Centre, School of Anthropology and Conservation, University of Kent, Canterbury, UK
| | - Davorka Radovčić
- Department of Geology and Paleontology, Croatian Natural History Museum, Zagreb, Croatia
| | - Dušan Borić
- Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Rome, Italy
| | | | - Tricia Basdeo
- Department of Anthropology, Adelphi University, New York, NY, USA
| | - Guido Ruggiero
- Ruggiero-Piscopo Dental Practice, Naples, Italy
- Molise Regional Health Authority, Venafro, Italy
| | - David W. Frayer
- Department of Anthropology, University of Kansas, Lawrence, KS, USA
| | - Alexander P. Kao
- Elettra-Sincrotrone Trieste S.C.p.A., 34149 Basovizza, Trieste, Italy
| | - Luca Bondioli
- Department of Cultural Heritage, University of Padua, Padua, Italy
| | - Lucia Mancini
- Elettra-Sincrotrone Trieste S.C.p.A., 34149 Basovizza, Trieste, Italy
| | - Timothy G. Bromage
- Department of Anthropology, New York University, New York, NY, USA
- New York Consortium in Evolutionary Primatology, New York, NY, USA
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, USA
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Suciyanie IM, Gultom FP, Hidayat AN, Suhartono AW, Yuniastuti M, Auerkari EI. Accuracy of forensic age estimation using cementum annulation and dentin translucency in adult: a systematic review and meta-analysis. Int J Legal Med 2022; 136:1443-1455. [PMID: 35088151 DOI: 10.1007/s00414-022-02777-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 01/15/2022] [Indexed: 10/19/2022]
Abstract
Identification of the living and the dead individual is essential in routine forensic dental examinations. Age determination can be of great value in forensic odontology, not only in identifying bodies but also in relation to crime. When subjects have extensive changes that external features provide no information, teeth are often the only means of identification. Several procedures for age-at-death estimation in adults have been introduced. Two of them, cementum annulation and dentin translucency, are frequently used as a single dental indicator. Cementum annulation refers to an alternating dark and light band; each pair of it represents 1 year. Meanwhile, dentin translucency is the other dental physiological process that begins in the second or third decade of life and progresses with age. There are still few studies that compared both methods and their accuracy in estimating adult age at death. Therefore, this study aims to test and compare cementum annulation and dentin translucency accuracy by performing a systematic search on five online databases (Pubmed, Scopus, Ebsco, ScienceDirect, and Wiley). All the research articles must be published in the last 10 years, and the full paper must be available in English. Out of the total 1178 literature, 28 studies were recruited for qualitative analysis and 23 studies for meta-analysis. The results show that dentin translucency age estimation is more accurate than the cementum annulation method in the entire population. It is recommended to use the cementum annulation method for younger adults (15-44 years) and the dentin translucency method for the older ones (≥ 45 years).
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Affiliation(s)
- Indah Melati Suciyanie
- Department of Oral Biology, Division of Forensic Odontology, Faculty of Dentistry, University of Indonesia, Jl. Salemba Raya No. 4, Central Jakarta, 10430, , DKI Jakarta, Indonesia
| | - Ferry Pergamus Gultom
- Department of Oral Biology, Division of Forensic Odontology, Faculty of Dentistry, University of Indonesia, Jl. Salemba Raya No. 4, Central Jakarta, 10430, , DKI Jakarta, Indonesia.
| | - Angel Natania Hidayat
- Department of Oral Biology, Division of Forensic Odontology, Faculty of Dentistry, University of Indonesia, Jl. Salemba Raya No. 4, Central Jakarta, 10430, , DKI Jakarta, Indonesia
| | - Antonius Winoto Suhartono
- Department of Oral Biology, Division of Forensic Odontology, Faculty of Dentistry, University of Indonesia, Jl. Salemba Raya No. 4, Central Jakarta, 10430, , DKI Jakarta, Indonesia
| | - Mindya Yuniastuti
- Department of Oral Biology, Division of Forensic Odontology, Faculty of Dentistry, University of Indonesia, Jl. Salemba Raya No. 4, Central Jakarta, 10430, , DKI Jakarta, Indonesia
| | - Elza Ibrahim Auerkari
- Department of Oral Biology, Division of Forensic Odontology, Faculty of Dentistry, University of Indonesia, Jl. Salemba Raya No. 4, Central Jakarta, 10430, , DKI Jakarta, Indonesia.
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12
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Newham E, Gill PG, Robson Brown K, Gostling NJ, Corfe IJ, Schneider P. A robust, semi-automated approach for counting cementum increments imaged with synchrotron X-ray computed tomography. PLoS One 2021; 16:e0249743. [PMID: 34735460 PMCID: PMC8568193 DOI: 10.1371/journal.pone.0249743] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 09/21/2021] [Indexed: 11/29/2022] Open
Abstract
Cementum, the tissue attaching mammal tooth roots to the periodontal ligament, grows appositionally throughout life, displaying a series of circum-annual incremental features. These have been studied for decades as a direct record of chronological lifespan. The majority of previous studies on cementum have used traditional thin-section histological methods to image and analyse increments. However, several caveats have been raised in terms of studying cementum increments in thin-sections. Firstly, the limited number of thin-sections and the two-dimensional perspective they impart provide an incomplete interpretation of cementum structure, and studies often struggle or fail to overcome complications in increment patterns that complicate or inhibit increment counting. Increments have been repeatedly shown to both split and coalesce, creating accessory increments that can bias increment counts. Secondly, identification and counting of cementum increments using human vision is subjective, and it has led to inaccurate readings in several experiments studying individuals of known age. Here, we have attempted to optimise a recently introduced imaging modality for cementum imaging; X-ray propagation-based phase-contrast imaging (PPCI). X-ray PPCI was performed for a sample of rhesus macaque (Macaca mulatta) lower first molars (n = 10) from a laboratory population of known age. PPCI allowed the qualitative identification of primary/annual versus intermittent secondary increments formed by splitting/coalescence. A new method for semi-automatic increment counting was then integrated into a purpose-built software package for studying cementum increments, to count increments in regions with minimal complications. Qualitative comparison with data from conventional cementochronology, based on histological examination of tissue thin-sections, confirmed that X-ray PPCI reliably and non-destructively records cementum increments (given the appropriate preparation of specimens prior to X-ray imaging). Validation of the increment counting algorithm suggests that it is robust and provides accurate estimates of increment counts. In summary, we show that our new increment counting method has the potential to overcome caveats of conventional cementochronology approaches, when used to analyse three-dimensional images provided by X-ray PPCI.
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Affiliation(s)
- Elis Newham
- Bioengineering Science Research Group, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, United Kingdom
- School of Engineering and Materials Science, Queen Mary University of London, London, United Kingdom
| | - Pamela G. Gill
- School of Earth Sciences, University of Bristol, Bristol, United Kingdom
- Department of Earth Sciences, Natural History Museum, London, United Kingdom
| | - Kate Robson Brown
- Department of Mechanical Engineering, University of Bristol, Bristol, United Kingdom
- Department of Anthropology and Archaeology, University of Bristol, Bristol, United Kingdom
| | - Neil J. Gostling
- School of Biological Sciences, Faculty of Environmental and Life Sciences, University of Southampton, Southampton, United Kingdom
| | - Ian J. Corfe
- Developmental Biology Program, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
- Geological Survey of Finland, Espoo, Finland
| | - Philipp Schneider
- Bioengineering Science Research Group, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, United Kingdom
- High-Performance Vision Systems, Center for Vision, Automation & Control, AIT Austrian Institute of Technology, Vienna, Austria
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13
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Newham E, Corfe IJ, Brown KR, Gostling NJ, Gill PG, Schneider P. Synchrotron radiation-based X-ray tomography reveals life history in primate cementum incrementation. J R Soc Interface 2020; 17:20200538. [PMID: 33234064 DOI: 10.1098/rsif.2020.0538] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Cementum is a mineralized dental tissue common to mammals that grows throughout life, following a seasonally appositional rhythm. Each year, one thick translucent increment and one thin opaque increment is deposited, offering a near-complete record of an animal's life history. Male and female mammals exhibit significant differences in oral health, due to the contrasting effects of female versus male sex hormones. Oestrogen and progesterone have a range of negative effects on oral health that extends to the periodontium and cementum growth interface. Here, we use synchrotron radiation-based X-ray tomography to image the cementum of a sample of rhesus macaque (Macaca mulatta) teeth from individuals of known life history. We found that increased breeding history in females corresponds with increased increment tortuosity and less organized cementum structure, when compared to male and juvenile cementum. We quantified structural differences by measuring the greyscale 'texture' of cementum and comparing results using principal components analysis. Adult females and males occupy discrete regions of texture space with no overlap. Females with known pregnancy records also have significantly different cementum when compared with non-breeding and juvenile females. We conclude that several aspects of cementum structure and texture may reflect differences in sexual life history in primates.
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Affiliation(s)
- Elis Newham
- Department of Anthropology and Archaeology, University of Bristol, Bristol, UK.,Bioengineering Science Research Group, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
| | - Ian J Corfe
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland.,Geological Survey of Finland, Espoo, Finland
| | - Kate Robson Brown
- Department of Anthropology and Archaeology, University of Bristol, Bristol, UK.,Department of Mechanical Engineering, University of Bristol, Bristol, UK
| | - Neil J Gostling
- Faculty of Environmental and Life Sciences, University of Southampton, Southampton, UK
| | - Pamela G Gill
- School of Earth Sciences, University of Bristol, Bristol, UK.,Earth Science Department, The Natural History Museum, London, UK
| | - Philipp Schneider
- Bioengineering Science Research Group, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
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14
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Bemmann M, Schulz-Kornas E, Hammel JU, Hipp A, Moosmann J, Herrel A, Rack A, Radespiel U, Zimmermann E, Kaiser TM, Kupczik K. Movement analysis of primate molar teeth under load using synchrotron X-ray microtomography. J Struct Biol 2020; 213:107658. [PMID: 33207268 DOI: 10.1016/j.jsb.2020.107658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 10/23/2022]
Abstract
Mammalian teeth have to sustain repetitive and high chewing loads without failure. Key to this capability is the periodontal ligament (PDL), a connective tissue containing a collagenous fibre network which connects the tooth roots to the alveolar bone socket and which allows the teeth to move when loaded. It has been suggested that rodent molars under load experience a screw-like downward motion but it remains unclear whether this movement also occurs in primates. Here we use synchroton micro-computed tomography paired with an axial loading setup to investigate the form-function relationship between tooth movement and the morphology of the PDL space in a non-human primate, the mouse lemur (Microcebus murinus). The loading behavior of both mandibular and maxillary molars showed a three-dimensional movement with translational and rotational components, which pushes the tooth into the alveolar socket. Moreover, we found a non-uniform PDL thickness distribution and a gradual increase in volumetric proportion of the periodontal vasculature from cervical to apical. Our results suggest that the PDL morphology may optimize the three-dimensional tooth movement to avoid high stresses under loading.
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Affiliation(s)
- Maximilian Bemmann
- Max Planck Weizmann Center for Integrative Archaeology and Anthropology, Max-Planck-Institute for Evolutionary Anthropology, 04103 Leipzig, Germany; Department of Cariology, Endodontics and Periodontology, University of Leipzig, Liebigstrasse 12, 04103 Leipzig, Germany
| | - Ellen Schulz-Kornas
- Max Planck Weizmann Center for Integrative Archaeology and Anthropology, Max-Planck-Institute for Evolutionary Anthropology, 04103 Leipzig, Germany; Department of Cariology, Endodontics and Periodontology, University of Leipzig, Liebigstrasse 12, 04103 Leipzig, Germany; Center of Natural History (CeNak), University of Hamburg, Hamburg, Germany
| | - Jörg U Hammel
- Institute of Materials Research, Helmholtz-Zentrum Geesthacht, 21502 Geesthacht, Germany
| | - Alexander Hipp
- Institute of Materials Research, Helmholtz-Zentrum Geesthacht, 21502 Geesthacht, Germany
| | - Julian Moosmann
- Institute of Materials Research, Helmholtz-Zentrum Geesthacht, 21502 Geesthacht, Germany
| | - Anthony Herrel
- UMR 7179 C.N.R.S/M.N.H.N., Département Adaptations du Vivant, Bâtiment d'Anatomie Comparée, 55 rue Buffon, 75005 Paris, France
| | - Alexander Rack
- ESRF The European Synchrotron, 71 Rue des Martyrs, 38000 Grenoble, France
| | - Ute Radespiel
- Institute of Zoology, University of Veterinary Medicine Hannover, Buenteweg 17, 30559 Hannover, Germany
| | - Elke Zimmermann
- Institute of Zoology, University of Veterinary Medicine Hannover, Buenteweg 17, 30559 Hannover, Germany
| | - Thomas M Kaiser
- Center of Natural History (CeNak), University of Hamburg, Hamburg, Germany
| | - Kornelius Kupczik
- Max Planck Weizmann Center for Integrative Archaeology and Anthropology, Max-Planck-Institute for Evolutionary Anthropology, 04103 Leipzig, Germany.
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15
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Newham E, Gill PG, Brewer P, Benton MJ, Fernandez V, Gostling NJ, Haberthür D, Jernvall J, Kankaanpää T, Kallonen A, Navarro C, Pacureanu A, Richards K, Brown KR, Schneider P, Suhonen H, Tafforeau P, Williams KA, Zeller-Plumhoff B, Corfe IJ. Reptile-like physiology in Early Jurassic stem-mammals. Nat Commun 2020; 11:5121. [PMID: 33046697 PMCID: PMC7550344 DOI: 10.1038/s41467-020-18898-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 09/11/2020] [Indexed: 12/12/2022] Open
Abstract
Despite considerable advances in knowledge of the anatomy, ecology and evolution of early mammals, far less is known about their physiology. Evidence is contradictory concerning the timing and fossil groups in which mammalian endothermy arose. To determine the state of metabolic evolution in two of the earliest stem-mammals, the Early Jurassic Morganucodon and Kuehneotherium, we use separate proxies for basal and maximum metabolic rate. Here we report, using synchrotron X-ray tomographic imaging of incremental tooth cementum, that they had maximum lifespans considerably longer than comparably sized living mammals, but similar to those of reptiles, and so they likely had reptilian-level basal metabolic rates. Measurements of femoral nutrient foramina show Morganucodon had blood flow rates intermediate between living mammals and reptiles, suggesting maximum metabolic rates increased evolutionarily before basal metabolic rates. Stem mammals lacked the elevated endothermic metabolism of living mammals, highlighting the mosaic nature of mammalian physiological evolution.
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Affiliation(s)
- Elis Newham
- School of Physiology, Pharmacology & Neuroscience, University of Bristol, Bristol, UK. .,Bioengineering Science Research Group, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK.
| | - Pamela G Gill
- School of Earth Sciences, University of Bristol, Bristol, UK. .,Earth Sciences Department, The Natural History Museum, London, UK.
| | - Philippa Brewer
- Earth Sciences Department, The Natural History Museum, London, UK
| | | | - Vincent Fernandez
- Core Research Laboratories, The Natural History Museum, London, UK.,ESRF, The European Synchrotron, Grenoble, France
| | - Neil J Gostling
- School of Biological Sciences, University of Southampton, Southampton, UK
| | - David Haberthür
- Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland.,Institute of Anatomy, University of Bern, Bern, Switzerland
| | - Jukka Jernvall
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Tuomas Kankaanpää
- Department of Agricultural Sciences, University of Helsinki, Helsinki, Finland
| | - Aki Kallonen
- Department of Physics, University of Helsinki, Helsinki, Finland
| | - Charles Navarro
- School of Earth Sciences, University of Bristol, Bristol, UK
| | | | | | - Kate Robson Brown
- Department of Anthropology and Archaeology, University of Bristol, Bristol, UK
| | - Philipp Schneider
- Bioengineering Science Research Group, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
| | - Heikki Suhonen
- Department of Physics, University of Helsinki, Helsinki, Finland
| | | | - Katherine A Williams
- Bioengineering Science Research Group, Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
| | - Berit Zeller-Plumhoff
- Institute for Materials Research, Division of Metallic Biomaterials, Helmholtz Zentrum Geesthacht, Geesthacht, Germany
| | - Ian J Corfe
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland. .,Geomaterials and Applied Mineralogy group, Geological Survey of Finland, Espoo, Finland.
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16
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Lleras-Forero L, Newham E, Teufel S, Kawakami K, Hartmann C, Hammond CL, Knight RD, Schulte-Merker S. Muscle defects due to perturbed somite segmentation contribute to late adult scoliosis. Aging (Albany NY) 2020; 12:18603-18621. [PMID: 32979261 PMCID: PMC7585121 DOI: 10.18632/aging.103856] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 07/14/2020] [Indexed: 01/24/2023]
Abstract
Scoliosis is an abnormal bending of the body axis. Truncated vertebrae or a debilitated ability to control the musculature in the back can cause this condition, but in most cases the causative reason for scoliosis is unknown (idiopathic). Using mutants for somite clock genes with mild defects in the vertebral column, we here show that early defects in somitogenesis are not overcome during development and have long lasting and profound consequences for muscle fiber organization, structure and whole muscle volume. These mutants present only mild alterations in the vertebral column, and muscle shortcomings are uncoupled from skeletal defects. None of the mutants presents an overt musculoskeletal phenotype at larval or early adult stages, presumably due to compensatory growth mechanisms. Scoliosis becomes only apparent during aging. We conclude that adult degenerative scoliosis is due to disturbed crosstalk between vertebrae and muscles during early development, resulting in subsequent adult muscle weakness and bending of the body axis.
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Affiliation(s)
- Laura Lleras-Forero
- Institute for Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, WWU, Münster, Germany,Hubrecht Institute-KNAW and University Medical Center Utrecht, CT, Utrecht, The Netherlands
| | - Elis Newham
- The School of Physiology, Pharmacology and Neuroscience, Biomedical Sciences, University of Bristol, Bristol, UK
| | - Stefan Teufel
- Institut für Muskuloskelettale Medizin (IMM), Abteilung Knochen- und Skelettforschung, Universitätsklinikum Münster, Germany
| | - Koichi Kawakami
- Laboratory of Molecular and Developmental Biology, National Institute of Genetics, Mishima, Shizuoka, Japan
| | - Christine Hartmann
- Institut für Muskuloskelettale Medizin (IMM), Abteilung Knochen- und Skelettforschung, Universitätsklinikum Münster, Germany
| | - Chrissy L. Hammond
- The School of Physiology, Pharmacology and Neuroscience, Biomedical Sciences, University of Bristol, Bristol, UK
| | - Robert D. Knight
- Centre for Craniofacial and Regenerative Biology, King´s College London, London, UK
| | - Stefan Schulte-Merker
- Institute for Cardiovascular Organogenesis and Regeneration, Faculty of Medicine, WWU, Münster, Germany,Hubrecht Institute-KNAW and University Medical Center Utrecht, CT, Utrecht, The Netherlands
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17
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Cerrito P, Bailey SE, Hu B, Bromage TG. Parturitions, menopause and other physiological stressors are recorded in dental cementum microstructure. Sci Rep 2020; 10:5381. [PMID: 32214148 PMCID: PMC7096390 DOI: 10.1038/s41598-020-62177-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 03/05/2020] [Indexed: 01/22/2023] Open
Abstract
The life history pattern of recent humans is uniquely derived in many of its aspects including an extended post-reproductive lifespan combined with short interbirth intervals. A number of theories have been proposed to explain the evolution of this unusual pattern. However most have been difficult to test due to the fragmentary nature of the hominin fossil record and the lack of methods capable of inferring such later life history events. In search of a method we tested the hypothesis that the physiologically impactful events of parturition and menopause are recorded in dental cementum microstructure. We performed histomorphological analyses of 47 teeth from 15 individuals with known life history events and were able to detect reproductive events and menopause in all females. Furthermore, we found that other stressful events such as systemic illnesses and incarceration are also detectable. Finally, through the development of a novel analytical method we were able to time all such events with high accuracy (R-squared = 0.92).
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Affiliation(s)
- Paola Cerrito
- Department of Anthropology, New York University, New York, USA. .,New York Consortium in Evolutionary Primatology, New York, USA. .,Department of Molecular Pathobiology, New York University College of Dentistry, New York, USA.
| | - Shara E Bailey
- Department of Anthropology, New York University, New York, USA.,New York Consortium in Evolutionary Primatology, New York, USA
| | - Bin Hu
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, USA
| | - Timothy G Bromage
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, USA.,Department of Biomaterials, New York University College of Dentistry, New York, USA
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18
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Fan F, Tu M, Li R, Dai X, Zhang K, Chen H, Huang F, Deng Z. Age estimation by multidetector computed tomography of cranial sutures in Chinese male adults. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2019; 171:550-558. [PMID: 31891181 DOI: 10.1002/ajpa.23998] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 09/21/2019] [Accepted: 12/17/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Fei Fan
- West China School of Basic Medical Sciences & Forensic MedicineSichuan University Chengdu China
| | - Meng Tu
- West China School of Basic Medical Sciences & Forensic MedicineSichuan University Chengdu China
| | - Rui Li
- College of Computer ScienceSichuan University Chengdu China
| | - Xinhua Dai
- West China School of Basic Medical Sciences & Forensic MedicineSichuan University Chengdu China
| | - Kui Zhang
- West China School of Basic Medical Sciences & Forensic MedicineSichuan University Chengdu China
| | - Hu Chen
- College of Computer ScienceSichuan University Chengdu China
| | - Feijun Huang
- West China School of Basic Medical Sciences & Forensic MedicineSichuan University Chengdu China
| | - Zhenhua Deng
- West China School of Basic Medical Sciences & Forensic MedicineSichuan University Chengdu China
- Key Laboratory of Evidence Science (China University of Political Science and Law)Ministry of Education
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19
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Bertrand B, Cunha E, Bécart A, Gosset D, Hédouin V. Age at death estimation by cementochronology: Too precise to be true or too precise to be accurate? AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2019; 169:464-481. [DOI: 10.1002/ajpa.23849] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/14/2019] [Accepted: 04/19/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Benoit Bertrand
- Univ. Lille, CHU Lille, EA 7367 ‐ UTML ‐ Unité de Taphonomie Médico‐Légale F‐59000 Lille France
- Muséum national d'Histoire naturelle, Département Homme et EnvironnementUMR 7194 ‐ HNHP, Institut de Paléontologie Humaine F‐75013 Paris France
| | - Eugenia Cunha
- Laboratory of Forensic AnthropologyCentre for Functional Ecology, Department of Life Sciences, University of Coimbra Coimbra Portugal
- National Institute of Legal Medicine and forensic SciencesLargo da Sé Nova Coimbra Portugal
| | - Anne Bécart
- Univ. Lille, CHU Lille, EA 7367 ‐ UTML ‐ Unité de Taphonomie Médico‐Légale F‐59000 Lille France
| | - Didier Gosset
- Univ. Lille, CHU Lille, EA 7367 ‐ UTML ‐ Unité de Taphonomie Médico‐Légale F‐59000 Lille France
| | - Valery Hédouin
- Univ. Lille, CHU Lille, EA 7367 ‐ UTML ‐ Unité de Taphonomie Médico‐Légale F‐59000 Lille France
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