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Immunohistochemical markers in the determination of lesion viability in decomposed bodies: A mini literature review 免疫组化标记在确定腐尸病变存活率中的作用:小型文献综述。
IF 2.2 3区 医学
Forensic science international Pub Date : 2024-11-05 DOI: 10.1016/j.forsciint.2024.112289
Cecilia Salzillo , Liliana Innamorato , Alessia Leggio , Andrea Marzullo
{"title":"Immunohistochemical markers in the determination of lesion viability in decomposed bodies: A mini literature review","authors":"Cecilia Salzillo ,&nbsp;Liliana Innamorato ,&nbsp;Alessia Leggio ,&nbsp;Andrea Marzullo","doi":"10.1016/j.forsciint.2024.112289","DOIUrl":"10.1016/j.forsciint.2024.112289","url":null,"abstract":"<div><div>The ability to distinguish between viable and post-mortem lesions is crucial in forensic medicine, especially in cases of advanced decomposition. Glycophorin A (GPA) is one of the most studied immunohistochemical markers for assessing lesion viability, with persistence in putrefied tissues up to 6 months. However, its sensitivity decreases beyond 15 days. Other markers such as tryptase, IL-15, CD15, CD45 and matrix metalloproteinases have been tested in decomposition contexts, but the results are inconclusive. This mini review article explores the main studies on immunohistochemical markers, discussing their utility and limitations in forensic investigations of decomposed bodies.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"365 ","pages":"Article 112289"},"PeriodicalIF":2.2,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142617198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Felid scavenging in forensic taphonomic research: An experimental approach 法证岩石学研究中的猫科动物食腐:实验方法
IF 2.2 3区 医学
Forensic science international Pub Date : 2024-11-04 DOI: 10.1016/j.forsciint.2024.112280
D. Errickson , L. Lawrence , L. Indra , T.J.U. Thompson
{"title":"Felid scavenging in forensic taphonomic research: An experimental approach","authors":"D. Errickson ,&nbsp;L. Lawrence ,&nbsp;L. Indra ,&nbsp;T.J.U. Thompson","doi":"10.1016/j.forsciint.2024.112280","DOIUrl":"10.1016/j.forsciint.2024.112280","url":null,"abstract":"<div><div>Animal scavenging on human remains presents a major challenge at a forensic scene. These lasting changes can influence the interpretation of a post-mortem interval, the overall state of the remains and any associated evidence, impacting the integrity of the scene. Therefore, identifying taphonomic related changes due to animal scavenging is important to understand the post-deposition sequence of events. However, knowing where to look is challenging and animal scavenging studies are difficult to create. Therefore, this study worked in collaboration with zoological institutes in the UK to capture the scavenging changes to horse bone, focussing on the locations of scavenging on bone and the characteristics left. This study focused on large felid (cheetah, lion, tiger, leopard) scavenging, which is less documented in comparison to canine scavenging. This research demonstrated the distribution patterns of tooth activity associated with large felid scavenging is consistent with those reported in the taphonomic literature on lions. Specifically, pits, punctures, scalloping and furrowing were found and characteristics were frequently noted at the borders and flat regions of bones. This study adds to the forensic discussion of scavenging. While focussing on large cats, the work demonstrates anatomical regions that may be affected by scavenging and the visual cues that may help identify animal interaction over human.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"365 ","pages":"Article 112280"},"PeriodicalIF":2.2,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142617197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Accuracy and reproducibility of bullet comparison decisions by forensic examiners 法医检验人员做出子弹对比决定的准确性和可重复性。
IF 2.2 3区 医学
Forensic science international Pub Date : 2024-11-04 DOI: 10.1016/j.forsciint.2024.112287
R. Austin Hicklin , Connie L. Parks , Kensley M. Dunagan , Brandi L. Emerick , Nicole Richetelli , William J. Chapman , Melissa Taylor , Robert M. Thompson
{"title":"Accuracy and reproducibility of bullet comparison decisions by forensic examiners","authors":"R. Austin Hicklin ,&nbsp;Connie L. Parks ,&nbsp;Kensley M. Dunagan ,&nbsp;Brandi L. Emerick ,&nbsp;Nicole Richetelli ,&nbsp;William J. Chapman ,&nbsp;Melissa Taylor ,&nbsp;Robert M. Thompson","doi":"10.1016/j.forsciint.2024.112287","DOIUrl":"10.1016/j.forsciint.2024.112287","url":null,"abstract":"<div><div>Few previous studies have assessed the accuracy and reproducibility of bullet comparison decisions by firearms examiners, and none have evaluated accuracy of examiners’ decisions when comparing damaged bullets, comparisons of questioned bullets, or the effects on decision rates of using jacketed hollow-point vs. full metal jacket bullets. In this study, 49 practicing forensic firearms examiners conducted 3156 comparisons of bullets, including bullets ranging in quality, bullets from different types of ammunition, and bullets fired from various makes/models of firearms. The study evaluated two scenarios commonly used in casework: questioned-questioned (QQ) comparisons of two bullets from unknown sources, and known-questioned (KQ) comparisons in which a bullet from an unknown source is compared to three known exemplars from a single firearm. Key findings: after controlling for other factors, QQ vs. KQ comparisons had relatively limited effects on decision rates; rates of inconclusive responses were inversely related to bullet quality; bullets fired from polygonally-rifled pistols resulted in more inconclusive or unsuitable responses than conventional rifling; on nonmated comparison sets, the rate of (true) exclusions was particularly high when comparing different caliber bullets, and was higher on comparisons of different makes/models of firearms vs. the same model of firearm; comparisons in which different types of ammunition were fired from the same firearm had a high rate of erroneous exclusions; decision rates differed notably by firearm model; decision rates varied notably among the participants. Because the measured rates vary dramatically due to these various factors, we recommend against using overall decision rates to summarize the results of this study.</div></div><div><h3>Significance statement</h3><div>Comparisons of bullets by forensic firearms examiners are a critical part of the criminal justice system, seeking to determine whether recovered bullets from crime scenes can be attributed to specific firearms. This paper reports the results of a research study designed to assess the accuracy and reliability of forensic bullet comparison decisions, which is important to assess scientific validity for admissibility in court. Few studies have been conducted assessing the accuracy of forensic bullet comparison decisions, and no previous studies have evaluated the accuracy and reproducibility of decisions made by practicing forensic firearms examiners when comparing bullets of varying quality or bullets of different types, or when making comparisons of questioned bullets.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"365 ","pages":"Article 112287"},"PeriodicalIF":2.2,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142638579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of the health conditions of migrants and asylum seekers in reception centers: From scene investigation to the evaluation of signs of torture 分析接待中心移民和寻求庇护者的健康状况:从现场调查到酷刑迹象评估。
IF 2.2 3区 医学
Forensic science international Pub Date : 2024-11-04 DOI: 10.1016/j.forsciint.2024.112288
Massimiliano Esposito , Monica Salerno , Mario Giuseppe Chisari , Francesco Sessa , Venerando Rapisarda , Cristoforo Pomara
{"title":"Analysis of the health conditions of migrants and asylum seekers in reception centers: From scene investigation to the evaluation of signs of torture","authors":"Massimiliano Esposito ,&nbsp;Monica Salerno ,&nbsp;Mario Giuseppe Chisari ,&nbsp;Francesco Sessa ,&nbsp;Venerando Rapisarda ,&nbsp;Cristoforo Pomara","doi":"10.1016/j.forsciint.2024.112288","DOIUrl":"10.1016/j.forsciint.2024.112288","url":null,"abstract":"<div><div>The phenomenon of migration is an international issue that mainly concerns Europe. In Italy, because of its close proximity to Africa, there are many migrant landings, especially on the islands of Lampedusa and Sicily. Migrants and asylum seekers suffer torture on their journey to their destination country, however, most of the time the signs are not always recognizable. In the present study, a scene investigation was carried out in a reception center for level II immigrants in Sicily, in order to evaluate the hygiene conditions of the migrants and asylum seekers inside this center. Subsequently 26 migrants and asylum seekers, all minors and males, were examined in a clinic of the Department of Forensic Medicine of the University of Catania, with the help of a native speaker interpreter and applying the Istanbul Protocol. The scene investigation demonstrated the poor clinical conditions of the reception center and the failure to comply with emergency regulations. The physical examination of the migrants and asylum seekers demonstrated that all the torture reported had taken place in Libya. However, only 4 migrants and asylum seekers showed signs of violence consistent with torture, compatible with the Istanbul Protocol. Nine migrants and asylum seekers (34.6 %) reported having pathologies and asked to undergo a medical examination in a hospital but were not listened to by the reception center staff. Two migrants and asylum seekers reported having worn the same clothes for several weeks to the reception center staff. In particular, all the migrants and asylum seekers reported having suffered torture using blunt instruments, especially beatings with truncheons. One migrant and asylum seeker reported being detained for days without food, instead 1 migrants and asylum seekers reported being kidnapped-blindfolded-stripped naked for days, and 1 migrants and asylum seekers reported having contracted infections, including scabies, with electrical and thermal trauma. Despite the international commitment to the phenomenon of migration, migrants and asylum seekers continue to receive abuse and torture. Furthermore, most migrants and asylum seekers studies primarily involve surveys, and few have applied the Istanbul Protocol to a sizable sample. An original aim of the study is the use of forensic tools to assess the sanitary and hygienic conditions of a migrant reception center, with the secondary aim of assessing alleged cases of torture.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"365 ","pages":"Article 112288"},"PeriodicalIF":2.2,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142590222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determination of endogenous GHB in ante-mortem whole blood, urine, and oral fluid by LC–MS/MS: The effect of different additives and storage conditions on the stability of GHB in blood 利用LC-MS/MS测定死前全血、尿液和口服液中的内源性伽马--羟丁酸:不同添加剂和储存条件对血液中伽马--羟丁酸稳定性的影响
IF 2.2 3区 医学
Forensic science international Pub Date : 2024-11-01 DOI: 10.1016/j.forsciint.2024.112286
Lambert K. Sørensen, Kathrine B. Faldborg, Charlotte U. Andersen, Jørgen B. Hasselstrøm
{"title":"Determination of endogenous GHB in ante-mortem whole blood, urine, and oral fluid by LC–MS/MS: The effect of different additives and storage conditions on the stability of GHB in blood","authors":"Lambert K. Sørensen,&nbsp;Kathrine B. Faldborg,&nbsp;Charlotte U. Andersen,&nbsp;Jørgen B. Hasselstrøm","doi":"10.1016/j.forsciint.2024.112286","DOIUrl":"10.1016/j.forsciint.2024.112286","url":null,"abstract":"<div><div>Two challenges in detecting γ-hydroxybutyric acid (GHB) intake are its endogenous presence and <em>in vitro</em> production after sampling. This study developed an LC–MS/MS method for selective GHB determination in human antemortem blood, urine, and oral fluid at endogenous concentrations. Furthermore, the stability of GHB in blood samples and its endogenous concentrations in samples taken under controlled circumstances were investigated. Samples were extracted in methanol/acetonitrile and processed by anion exchange solid-phase extraction. GHB was separated from structural isomers using a reversed–phase LC column with anion properties. The validated limit of quantification was 0.005 µg/mL in blood and 0.010 µg/mL in urine and oral fluid, at which the relative reproducibility standard deviation and bias were &lt;15 %. The mean extraction recovery was ≥90 %. The average GHB concentration increased by 1.2 µg/mL in fluoride/citrate- preserved blood after 28 days of storage at 4°C; however, in fluoride/oxalate (FX)-preserved blood, the mean concentration increased by only 0.055 µg/mL. No change was observed at −20°C. In 105 randomly selected samples of FX-preserved blood collected for forensic antemortem toxicological analysis, all concentrations were &lt;0.066 µg/mL, even after long-term storage at −20°C. In blood, urine, and oral fluid samples from a clinical study of GHB intake, endogenous baseline levels from 30 participants ranged from 0.0069–0.050, 0.024–0.38, and 0.034–0.93 µg/mL, respectively. These results demonstrate that the current cut-off level of 5 µg/mL for discriminating between endogenous and exogenous GHB in antemortem blood could be considerably lower for FX-preserved blood stored at −20°C.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"365 ","pages":"Article 112286"},"PeriodicalIF":2.2,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research progress and application of bacterial traceability technology 细菌溯源技术的研究进展与应用。
IF 2.2 3区 医学
Forensic science international Pub Date : 2024-10-31 DOI: 10.1016/j.forsciint.2024.112275
Wei Wang , Bichun Zhao , Hanyu Zhang , Zhaowei Jie , Can Hu , Hongling Guo , Ping Wang , Yajun Li , Jun Zhu , Hongcheng Mei , Jian Ye
{"title":"Research progress and application of bacterial traceability technology","authors":"Wei Wang ,&nbsp;Bichun Zhao ,&nbsp;Hanyu Zhang ,&nbsp;Zhaowei Jie ,&nbsp;Can Hu ,&nbsp;Hongling Guo ,&nbsp;Ping Wang ,&nbsp;Yajun Li ,&nbsp;Jun Zhu ,&nbsp;Hongcheng Mei ,&nbsp;Jian Ye","doi":"10.1016/j.forsciint.2024.112275","DOIUrl":"10.1016/j.forsciint.2024.112275","url":null,"abstract":"<div><div>Bacterial traceability refers to the use of a range of techniques to trace the origins and transmission pathways of bacteria. It is crucial in controlling the spread of diseases, analyzing bioterrorism incidents, and advancing microbial forensics. In recent years, the frequency and scope of bacterial outbreaks have continued to escalate, exerting significant impacts on global biosecurity, public health, and other areas. Consequently, it is required to process traceability of bacteria timely and accurately around the globe. The rapid development of biological and physicochemical traceability techniques provides convenience for tracing bacteria. These techniques not only surpass traditional methods in terms of sensitivity, traceability and throughput, but also find more extensive applications in elucidating bacterial growth mechanisms, transmission routes, and geographical origins. This paper systematically reviews the latest research progress and applications of technologies of bacterial traceability, highlighting key advancements and projecting future trends, with the intent of providing a valuable reference for researchers, facilitating further studies and innovations in this field.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"365 ","pages":"Article 112275"},"PeriodicalIF":2.2,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142567374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A first step towards a machine learning-based framework for bloodstain classification in forensic science 基于机器学习的法医学血迹分类框架的第一步
IF 2.2 3区 医学
Forensic science international Pub Date : 2024-10-31 DOI: 10.1016/j.forsciint.2024.112278
Hyeonah Jung , Yeon-Soo Jo , Yoseop (Joseph) Ahn , Jaehoon (Paul) Jeong , Si-Keun Lim
{"title":"A first step towards a machine learning-based framework for bloodstain classification in forensic science","authors":"Hyeonah Jung ,&nbsp;Yeon-Soo Jo ,&nbsp;Yoseop (Joseph) Ahn ,&nbsp;Jaehoon (Paul) Jeong ,&nbsp;Si-Keun Lim","doi":"10.1016/j.forsciint.2024.112278","DOIUrl":"10.1016/j.forsciint.2024.112278","url":null,"abstract":"<div><div>Bloodstains found at a crime scene can help estimate the events that occurred during the crime. Reconstructing the crime scene by analyzing the bloodstain pattern contributes to understanding the bloody event. Therefore, it is essential to classify bloodstains through bloodstain pattern analysis (BPA) and accurately estimate the actions that took place at that time. In this study, we investigate the potential of using machine learning and deep learning to determine an action related to bloodstain data through the accessment of the corresponding bloodstain type by creating a prototype classification model. There are 14 types of bloodstain according to the classification system based on appearance. In this study, we test the classification potential of each bloodstain data for three bloodstain patterns such as Swing, Cessation, and Impact. Through experiments, it is shown that our prototype classification model for the selected bloodstains is developed and the accuracy of the resulting model is evaluated to be 80 %.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"365 ","pages":"Article 112278"},"PeriodicalIF":2.2,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Forensic investigation into head trauma in combat sports, blunt force homicides, and traditional martial arts 对格斗运动、钝器杀人和传统武术中头部创伤的法医调查
IF 2.2 3区 医学
Forensic science international Pub Date : 2024-10-31 DOI: 10.1016/j.forsciint.2024.112269
Andreas Bourantanis , Konstantinos Katsos , Alexandros Samolis , Dimitrios Vlachodimitropoulos , George Troupis , Emmanouil I. Sakelliadis , Weijie W. Wang
{"title":"Forensic investigation into head trauma in combat sports, blunt force homicides, and traditional martial arts","authors":"Andreas Bourantanis ,&nbsp;Konstantinos Katsos ,&nbsp;Alexandros Samolis ,&nbsp;Dimitrios Vlachodimitropoulos ,&nbsp;George Troupis ,&nbsp;Emmanouil I. Sakelliadis ,&nbsp;Weijie W. Wang","doi":"10.1016/j.forsciint.2024.112269","DOIUrl":"10.1016/j.forsciint.2024.112269","url":null,"abstract":"<div><h3>Background</h3><div>The analysis of circumstantial elements in post-mortem examinations is crucial for identifying perpetrators in unarmed close-range homicides. This study explores the forensic analysis of head trauma fatalities related to combat sports, blunt force trauma homicides, and traditional martial arts (TMA), aiming to bridge the gap between historical martial arts documentation and modern forensic pathology.</div></div><div><h3>Materials and methods</h3><div>Following PRISMA guidelines, we conducted a systematic literature review and interdisciplinary analysis combining traditional forensic methods with the study of TMA manuscripts and consultations with martial arts experts.</div></div><div><h3>Results</h3><div>The research uncovered a high incidence of head injuries in combat sports and identified distinct injury patterns in blunt-force trauma homicides. In martial arts, lethal techniques targeting the cranial region were pinpointed. An algorithm was developed to differentiate between injuries from various sources effectively.</div></div><div><h3>Conclusion</h3><div>This study offers a framework to distinguish injuries from combat sports, homicides, and martial arts, improving diagnostic accuracy in forensic pathology. It advocates for a detailed protocol that considers the technical aspects of TMA and their forensic implications, enhancing the evaluation of head trauma cases in forensic investigations.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"365 ","pages":"Article 112269"},"PeriodicalIF":2.2,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142578384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Baclofen-related deaths in Australia 2000–2022 2000-2022 年澳大利亚与巴氯芬相关的死亡人数
IF 2.2 3区 医学
Forensic science international Pub Date : 2024-10-30 DOI: 10.1016/j.forsciint.2024.112281
Emma Zahra , Shane Darke , Julia Lappin , Johan Duflou , Michael Farrell
{"title":"Baclofen-related deaths in Australia 2000–2022","authors":"Emma Zahra ,&nbsp;Shane Darke ,&nbsp;Julia Lappin ,&nbsp;Johan Duflou ,&nbsp;Michael Farrell","doi":"10.1016/j.forsciint.2024.112281","DOIUrl":"10.1016/j.forsciint.2024.112281","url":null,"abstract":"<div><div>In Australia, the therapeutic indication of baclofen (oral tablets) is for the treatment of muscle spasm. Deaths related to baclofen have been reported, as well as misuse, dependence and self-poisoning. This national retrospective study aimed to investigate the number, characteristics, circumstances, and toxicology of baclofen-related deaths in Australia, 2000–2022. We identified 102 baclofen-related deaths, with a mean age of 45.6 years and 51 % being male. Circumstances of death were: intentional toxicity (54.9 %), unintentional toxicity (30.4 %), unintentional toxicity/disease (9.8 %), and accidental injury (4.9 %). Multiple sclerosis or spinal injury was documented in 15.7 % of cases, substance use problems in 43.1 % and specifically alcohol use problems in 38.2 %. Mental health problems were documented in 73.5 %, a previous self-harm or suicide attempt in 30.4 %, and chronic pain in 37.3 %. The median baclofen blood concentration for all cases was 3.10 mg/L (25th 0.70, 75th 8.10, range 0.04–110.00), unintentional toxicity 1.95 mg/L (25th 0.70, 75th 4.35, range 0.04–24.0), intentional toxicity 6.00 mg/L (25th 1.10, 75th 13.0, range 0.05–110.0). Concomitant substance use was seen in 93.8 %, with antidepressants (69.8 %) and benzodiazepines (64.6 %) most frequently detected. In conclusion, the ‘typical’ case was middle-aged, most dying due to intentional toxicity, and likely to have a history of mental health and substance use problems. We suggest caution is needed in prescribing baclofen given its potential to be used in intentional and non-intentional overdose.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"365 ","pages":"Article 112281"},"PeriodicalIF":2.2,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142560871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analyzing 3D facial morphology: Insights from a comparative European and South African study on population affinity, sex, age, and allometry 分析三维面部形态:欧洲和南非人口亲缘关系、性别、年龄和异体测量比较研究的启示
IF 2.2 3区 医学
Forensic science international Pub Date : 2024-10-30 DOI: 10.1016/j.forsciint.2024.112282
Thandolwethu Mbali Mbonani, Ericka Noelle L’Abbé, Alison Fany Ridel
{"title":"Analyzing 3D facial morphology: Insights from a comparative European and South African study on population affinity, sex, age, and allometry","authors":"Thandolwethu Mbali Mbonani,&nbsp;Ericka Noelle L’Abbé,&nbsp;Alison Fany Ridel","doi":"10.1016/j.forsciint.2024.112282","DOIUrl":"10.1016/j.forsciint.2024.112282","url":null,"abstract":"<div><div>Variable growth patterns and multifactorial mechanisms cause variation in facial shape. These differences in facial morphology pose challenges for craniofacial reconstruction. Three-dimensional (3D) imaging modalities are a valuable resource for examining these variations. In this study, we used geometric morphometric methods to evaluate the effects of population affinity, sex, age, and allometry on the variation and covariation of hard and soft tissue facial morphology matrices in a sample of French and white South African individuals. Seventy-six and 108 cone-beam computed tomography scans of white South African and French nationals, respectively, were retrospectively acquired. Three-dimensional anatomical structures (hard and soft tissue matrices) were extracted using MeVisLab© v. 2.7.1 software for dense landmarking of 43 craniometric, 50 capulometric, and 559 sliding landmarks. Geometric morphometric analyses were used to quantify shape differences attributed to population affinity, sex, age, and allometry and assess the covariation between hard tissue structures and soft facial tissues. Hard and soft tissue facial matrices were influenced by population differences, sexual dimorphism, and aging. Compared to sex and age, population affinity had the strongest influence on variation. In French individuals, all hard and soft tissue matrices were sexually dimorphic, except for the eyes and left external auditory meatus (EAM). In white South Africans, sexual dimorphism was observed for the mouth, midface, and left EAM. Significant shape differences were also observed for specific age groups. The underlying skull and overlying soft tissues were strongly associated with the nose and anterior nasal aperture (correlation, r<sup>2</sup>-PLS = 0.976), followed by the right ear and right EAM (r<sup>2</sup>-PLS = 0.875) and the left ear and left EAM (r<sup>2</sup>-PLS = 0.871) in white South Africans. For French individuals, relatively weak to moderate correlations were observed, and the covariation between matrices was nonsignificant, except for the association between the right ear and right EAM (r<sup>2</sup>-PLS = 0.499). The smallest covariation was observed between the mouth and midfacial matrix in both populations (South African: r<sup>2</sup>-PLS = 0.464; French: r<sup>2</sup>-PLS = 0.367), which was also nonsignificant. This study revealed that 3D imaging technology and geometric morphometric methods can accurately quantify and visualize facial morphology differences. These methods can also evaluate the association between skull structure and soft facial features.</div></div>","PeriodicalId":12341,"journal":{"name":"Forensic science international","volume":"365 ","pages":"Article 112282"},"PeriodicalIF":2.2,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142593616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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