Gas embolism as a potential cause of death by helium poisoning - postmortem computed tomography changes in two cases of suicidal helium inhalation.
Helium-induced death has been described as rapid and painless, among others in the publication based on filmed cases of assisted suicide by oxygen deprivation using helium [1]. Hence the observed dramatic rise in helium inhalation suicides worldwide [2 –7]. Helium inhalation has been also more and more widely advocated as a means of assisted suicide in terminal patients [1,2,8,9]. The reported mechanism of death in the case of helium inhalation is rapid asphyxiation due to oxygen deprivation. The lack of dyspnea before death has been associated with the fact that people who inhale helium can freely exhale carbon dioxide,...
Source: Legal Medicine - January 9, 2018 Category: Forensic Medicine Authors: Aleksandra Borowska-Solonynko, Agnieszka D ąbkowska Tags: Case Report Source Type: research
The genetic diversity and applicability assessment of autosomal STRs among Chinese populations by a novel Fixation Index and Nei ’s index
China is a heterogeneous country with 56 nationalities. Approximately 92% of the total population is the Han nationality and the rest derives from different minorities, and the top three minorities with less population are Zhuang (0.12%), Hui (0.07%) and Manchu (0.07%) (http://www.stats.gov.cn/tjsj/pcsj/rkpc/6rp/indexch.htm). Previous studies find the significant difference between northern and southern populations of China with means of archaeological analysis [1] and genetic evidences on microsatellites [2], Y-SNP [3] and autosomal SNP [4]. (Source: Legal Medicine)
Source: Legal Medicine - January 3, 2018 Category: Forensic Medicine Authors: Caiyong Yin, Chuwei Deng, Xiaoqin Qian, Huijie Huang, Yanfang Yu, Li Hu, Peng Chen, Feng Chen Source Type: research
The genetic diversity and applicability assessment of autosomal STRs among Chinese populations by a novel fixation index and Nei's index
China is a heterogeneous country with 56 nationalities. Approximately 92% of the total population is the Han nationality and the rest derives from different minorities, and the top three minorities with less population are Zhuang (0.12%), Hui (0.07%) and Manchu (0.07%) (http://www.stats.gov.cn/tjsj/pcsj/rkpc/6rp/indexch.htm). Previous studies find the significant difference between northern and southern populations of China with means of archaeological analysis[1] and genetic evidences on microsatellites [2], Y-SNP [3]and autosomal SNP [4]. (Source: Legal Medicine)
Source: Legal Medicine - January 3, 2018 Category: Forensic Medicine Authors: Caiyong Yin, Chuwei Deng, Xiaoqin Qian, Huijie Huang, Yanfang Yu, Li Hu, Peng Chen, Feng Chen Source Type: research
Editorial Board (Issue 1)
(Source: Legal Medicine)
Source: Legal Medicine - January 1, 2018 Category: Forensic Medicine Source Type: research
Estimation of early postmortem interval in rats by GC –MS-based metabolomics
Postmortem interval (PMI), an important index in forensics, plays a central role in determining the time point at which an incident occurred, determining whether a suspect had the time to commit a crime, and delimiting the scope of an investigation. Currently, several methods are used to estimate PMI. Early postmortem phenomena, such as, corpse[1], rigor mortis [2], livor mortis [3], and corneal opacity [4]can be used to estimate PMI; however, these studies rely on strong empirical and subjective. (Source: Legal Medicine)
Source: Legal Medicine - December 30, 2017 Category: Forensic Medicine Authors: Zhigui Wu, Xiang Lu, Fan Chen, Xinhua Dai, Yi Ye, Youyi Yan, Linchuan Liao Source Type: research
Estimation of early postmortem interval in rats by GC-MS-based metabolomics
Postmortem interval (PMI), an important index in forensics, plays a central role in determining the time point at which an incident occurred, determining whether a suspect had the time to commit a crime, and delimiting the scope of an investigation. Currently, several methods are used to estimate PMI. Early postmortem phenomena, such as, corpse[1], rigor mortis [2], livor mortis [3], and corneal opacity [4]can be used to estimate PMI; however, these studies rely on strong empirical and subjective. (Source: Legal Medicine)
Source: Legal Medicine - December 30, 2017 Category: Forensic Medicine Authors: Zhigui Wu, Xiang Lu, Fan Chen, Xinhua Dai, Yi Ye, Youyi Yan, Linchuan Liao Source Type: research
Forensic parameters of the X-STR Decaplex system in Mexican populations
Short Tandem Repeats of the X-chromosome (X-STRs) have demonstrated to be informative in forensic casework [1,2]. However, few X-STR systems have been studied in the Mexican population [3], which is characterized by different levels of admixture originated after the European contact. (Source: Legal Medicine)
Source: Legal Medicine - December 28, 2017 Category: Forensic Medicine Authors: C. Mariscal Ramos, G Mart ínez-Cortes, B Ramos-González, H Rangel-Villalobos Source Type: research
Forensic Parameters of the X-STR Decaplex System in Mexican populations
Short Tandem Repeats of the X-chromosome (X-STRs) have demonstrated to be informative in forensic casework [1,2]. However, few X-STR systems have been studied in the Mexican population [3], which is characterized by different levels of admixture originated after the European contact. (Source: Legal Medicine)
Source: Legal Medicine - December 28, 2017 Category: Forensic Medicine Authors: C. Mariscal Ramos, G Mart ínez-Cortes, B Ramos-González, H Rangel-Villalobos Source Type: research
3D-3D facial superimposition between monozygotic twins: A novel morphological approach to the assessment of differences due to environmental factors
This study aims at exposing an innovative method for the facial assessment in monozygotic twins for personal identification, based on the registration and comparison of 3D models of faces.Ten couples of monozygotic twins aged between 25 and 69 years were acquired twice by a stereophotogrammetric system (VECTRA-3D® M3: Canfield Scientific, Inc., Fairfield, NJ); the 3D reconstruction of each person was then registered and superimposed onto the model belonging to the same person (self-matches), the corresponding sibling (twin-matches) an d to unrelated participants from the other couples (miss-matches); RMS (root mean squ...
Source: Legal Medicine - December 27, 2017 Category: Forensic Medicine Authors: Daniele Gibelli, Valentina Pucciarelli, Pasquale Poppa, Danilo De Angelis, Marco Cummaudo, Luca Pisoni, Marina Codari, Cristina Cattaneo, Chiarella Sforza Source Type: research
3D-3D facial superimposition between monozygotic twins: a novel morphological approach to the assessment of differences due to environmental factors
This study aims at exposing an innovative method for the facial assessment in monozygotic twins for personal identification, based on the registration and comparison of 3D models of faces.Ten couples of monozygotic twins aged between 25 and 69 years were acquired twice by a stereophotogrammetric system (VECTRA-3D ® M3: Canfield Scientific, Inc., Fairfield, NJ); the 3D reconstruction of each person was then registered and superimposed onto the model belonging to the same person (self-matches), the corresponding sibling (twin-matches) and to unrelated participants from the other couples (miss-matches); RMS (r oot mean squar...
Source: Legal Medicine - December 27, 2017 Category: Forensic Medicine Authors: Daniele Gibelli, Valentina Pucciarelli, Pasquale Poppa, Danilo De Angelis, Marco Cummaudo, Luca Pisoni, Marina Codari, Cristina Cattaneo, Chiarella Sforza Source Type: research
Postmortem interval estimation using the animal model of postmortem gas volume changes
Estimation of the postmortem interval is one of the most important evaluation items in forensic autopsy and postmortem examination. However, it remains difficult to estimate the postmortem interval in forensic pathology. Many methods to estimate the postmortem interval have been investigated and reported. One such method is evaluation of the decrease in rectal temperature. In this method, the postmortem interval is calculated using a downward curve of rectal temperature [1]. Other methods, such as biochemical examination, bacteriological examination, degree of digestion, and rigor mortis, were also reported [2]. (Source: Legal Medicine)
Source: Legal Medicine - December 20, 2017 Category: Forensic Medicine Authors: Chika Iwamoto, Kenoki Ohuchida, Miki Okumura, Yosuke Usumoto, Junji Kishimoto, Masaharu Murata, Noriaki Ikeda, Makoto Hashizume Source Type: research
Allele frequencies of 15 STR loci (Identifiler ™ kit) in Basque-Americans
The Basque are a linguistic isolate and ethnic group, inhabiting the Basque Country (Euskal Herria) of northern Spain and southwestern France; they have been the subjects of numerous genetic studies [1 –8]. Once considered genetic isolates, they are now known to be more closely related to neighboring European populations than other world populations [1], although they can be differentiated from other Europeans with high-density SNP genotyping [2]. Basque migrants settled in the region of the Int ermountain West in the late 1800’s, especially the regions of Southwestern Idaho, Southeastern Oregon, and Northern Nevada. (...
Source: Legal Medicine - December 12, 2017 Category: Forensic Medicine Authors: Jason Besecker, Gianluca Peri, Michael Davis, Josu Zubizarreta, Greg Hampikian Tags: Announcement of Population Data Source Type: research
