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Lozano-Peral D, Rubio L, Santos I, Gaitán MJ, Viguera E, Martín-de-Las-Heras S. DNA degradation in human teeth exposed to thermal stress. Sci Rep 2021; 11:12118. [PMID: 34108558 PMCID: PMC8190102 DOI: 10.1038/s41598-021-91505-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 05/26/2021] [Indexed: 11/09/2022] Open
Abstract
Human identification from burned remains poses a challenge to forensic laboratories, and DNA profiling is widely used for this purpose. Our aim was to evaluate the effect of temperature on DNA degradation in human teeth. Thirty teeth were exposed to temperatures of 100, 200, or 400 °C for 60 min. DNA was quantified by Real-Time qPCR (Quantifiler Human DNA Quantification Kit) and fluorescence spectroscopy (Qubit 3.0 Fluorometer). DNA degradation was evaluated by using STR markers (AmpFLSTR Identifiler Plus PCR Amplification Kit) to determine the allele and locus dropout, inter-locus balance, and degradation slope (observed (Oa) to expected (Ea) locus peak height ratio against the molecular weight). Most of the genomic DNA was degraded between 100 °C and 200 °C. At 100 °C, locus dropout ratios showed significant differences between the largest loci (FGA, D7S820, D18S51, D16S539, D2S1338 and CSF1PO) and amelogenin. Inter-locus balance values significantly differed between all dye channels except between NED and PET. The dropout ratio between D18S51 (NED) and amelogenin (PET) can be recommended for the evaluation of DNA degradation. The Oa/Ea regression model can predict locus peak heights in DNA degradation (R2 = 0.7881). These findings may be useful to assess the reliability of DNA typing for human identification in teeth subjected to prolonged incineration.
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Affiliation(s)
- Diego Lozano-Peral
- Department of Forensic Dentistry and Medicine, Instituto de Investigación Biomédica de Málaga-IBIMA (CE-18), School of Medicine, University of Malaga, 29071, Malaga, Spain
- Supercomputing and Bioinnovation Center, Servicios Centrales de Apoyo a la Investigación, University of Malaga, 29590, Malaga, Spain
| | - Leticia Rubio
- Department of Forensic Dentistry and Medicine, Instituto de Investigación Biomédica de Málaga-IBIMA (CE-18), School of Medicine, University of Malaga, 29071, Malaga, Spain.
| | - Ignacio Santos
- Department of Forensic Dentistry and Medicine, Instituto de Investigación Biomédica de Málaga-IBIMA (CE-18), School of Medicine, University of Malaga, 29071, Malaga, Spain
| | - María Jesús Gaitán
- Department of Forensic Dentistry and Medicine, Instituto de Investigación Biomédica de Málaga-IBIMA (CE-18), School of Medicine, University of Malaga, 29071, Malaga, Spain
| | - Enrique Viguera
- Department of Cellular Biology, Genetics and Physiology, University of Malaga, 29071, Malaga, Spain
| | - Stella Martín-de-Las-Heras
- Department of Forensic Dentistry and Medicine, Instituto de Investigación Biomédica de Málaga-IBIMA (CE-18), School of Medicine, University of Malaga, 29071, Malaga, Spain
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Cavanaugh SE, Bathrick AS. Direct PCR amplification of forensic touch and other challenging DNA samples: A review. Forensic Sci Int Genet 2018; 32:40-49. [DOI: 10.1016/j.fsigen.2017.10.005] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 10/11/2017] [Accepted: 10/16/2017] [Indexed: 01/08/2023]
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Zupanič Pajnič I, Zupanc T, Balažic J, Geršak ŽM, Stojković O, Skadrić I, Črešnar M. Prediction of autosomal STR typing success in ancient and Second World War bone samples. Forensic Sci Int Genet 2017; 27:17-26. [DOI: 10.1016/j.fsigen.2016.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 10/08/2016] [Accepted: 11/18/2016] [Indexed: 01/31/2023]
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Salahuddin Z, Yasir Zahoor M, Kalsoom S, Rakha A. You can’t hide encoded evidence: DNA recovery from different fabrics after washing. AUST J FORENSIC SCI 2016. [DOI: 10.1080/00450618.2016.1237545] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Zeenat Salahuddin
- Forensic Sciences Section, Centre for Research in Molecular Medicine, The University of Lahore, Lahore, Pakistan
| | - Muhammad Yasir Zahoor
- Institute of Biochemistry and Biotechnology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Saeeda Kalsoom
- Institute of Molecular Biology and Biochemistry, The University of Lahore, Lahore, Pakistan
| | - Allah Rakha
- Department of Forensic Sciences, University of Health Sciences, Lahore, Pakistan
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Calafell F, Anglada R, Bonet N, González-Ruiz M, Prats-Muñoz G, Rasal R, Lalueza-Fox C, Bertranpetit J, Malgosa A, Casals F. An assessment of a massively parallel sequencing approach for the identification of individuals from mass graves of the Spanish Civil War (1936-1939). Electrophoresis 2016; 37:2841-2847. [DOI: 10.1002/elps.201600180] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 07/21/2016] [Accepted: 07/30/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Francesc Calafell
- Institut de Biologia Evolutiva (UPF-CSIC), Departament de Ciències Experimentals i de la Salut; Universitat Pompeu Fabra; 08003 Barcelona Catalonia Spain
| | - Roger Anglada
- Genomics Core Facility, Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra; Parc de Recerca Biomèdica de Barcelona; Barcelona Catalonia Spain
| | - Núria Bonet
- Genomics Core Facility, Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra; Parc de Recerca Biomèdica de Barcelona; Barcelona Catalonia Spain
| | - Mercedes González-Ruiz
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia; Universitat Autònoma de Barcelona, 08193 Bellaterra; Barcelona Catalonia Spain
| | - Gemma Prats-Muñoz
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia; Universitat Autònoma de Barcelona, 08193 Bellaterra; Barcelona Catalonia Spain
| | - Raquel Rasal
- Genomics Core Facility, Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra; Parc de Recerca Biomèdica de Barcelona; Barcelona Catalonia Spain
| | - Carles Lalueza-Fox
- Institut de Biologia Evolutiva (UPF-CSIC), Departament de Ciències Experimentals i de la Salut; Universitat Pompeu Fabra; 08003 Barcelona Catalonia Spain
| | - Jaume Bertranpetit
- Institut de Biologia Evolutiva (UPF-CSIC), Departament de Ciències Experimentals i de la Salut; Universitat Pompeu Fabra; 08003 Barcelona Catalonia Spain
| | - Assumpció Malgosa
- Unitat d'Antropologia Biològica, Departament de Biologia Animal, Biologia Vegetal i Ecologia; Universitat Autònoma de Barcelona, 08193 Bellaterra; Barcelona Catalonia Spain
| | - Ferran Casals
- Genomics Core Facility, Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra; Parc de Recerca Biomèdica de Barcelona; Barcelona Catalonia Spain
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Liu JY. Direct qPCR quantification of unprocessed forensic casework samples. Forensic Sci Int Genet 2014; 11:96-104. [DOI: 10.1016/j.fsigen.2014.03.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Revised: 02/16/2014] [Accepted: 03/02/2014] [Indexed: 11/16/2022]
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