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International Journal of Legal Medicine

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https://www.readbyqxmd.com/read/28647811/is-it-possible-to-detect-peth-16-0-18-1-and-peth-18-1-18-1-in-red-blood-cells-after-20%C3%A2-years-of-storage-in-liquid-nitrogen
#1
Robert Boll, Theron Johnson, Rudolf Kaaks, Tilman Kühn, Gisela Skopp
INTRODUCTION: Phosphatidylethanol (PEth), as measured in freshly drawn blood samples, could be a promising new biomarker for habitual alcohol consumption, but it is still unknown whether PEth can also be determined from blood samples having been stored frozen for a longer period. MATERIALS AND METHODS: PEth 16:0/18:1 and PEth 18:1/18:1 were determined by LC-MS/MS from red blood cells (RBC) derived from blood samples of (I) 20 healthy volunteers (after 1 month of storage at -80 °C) and (II) 232 participants of the population-based European Prospective Investigation into Cancer and Nutrition (EPIC)-Heidelberg study (after 20 years of storage at -196 °C)...
June 24, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28634680/stability-of-upper-face-sexual-dimorphism-in-central-european-populations-czech-republic-during-the-modern-age
#2
Šárka Bejdová, Ján Dupej, Václav Krajíček, Jana Velemínská, Petr Velemínský
One of the most fundamental issues in forensic anthropology is the determination of sex and population affinity based on various skeletal elements. Therefore, we compared the sexual dimorphism of the upper facial skeleton from a recent Czech population (twenty-first century) with that of a population from Early Modern Age Bohemia (sixteenth to eighteenth centuries). Methods of geometric morphometrics were applied. According to the results, sexual dimorphism in terms of size, shape, and form was statistically significant in both populations...
June 21, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28634679/establishment-of-two-forensic-medicine-osce-stations-on-the-subject-of-external-post-mortem-examination
#3
S Heide, R Lessig, V Hachmann, D Stiller, M Rönsch, D Stoevesandt, A Biolik, S Watzke, J Kellner
An improvement in quality of medical external post-mortem examinations among others can be achieved by more intensive training of medical students. Modern learning and teaching methods such as e-learning modules and SkillsLab stations should be used for this. The introduction of corresponding methods of assessment such as the OSCE procedure is necessary to test the success of learning. In Halle (Germany), two OSCE stations on the subject of external post-mortem examinations were introduced in 2016. The 'practical external post-mortem examination' station test skills and abilities students have learned during practical external post-mortem examination in small group classes on a simulation doll...
June 21, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28634678/the-iliac-crest-in-forensic-age-estimation-evaluation-of-three-methods-in-pelvis-x-rays
#4
Viola Bartolini, Vilma Pinchi, Barbara Gualco, Stefano Vanin, Giusto Chiaracane, Giovanni D'Elia, Gian-Aristide Norelli, Martina Focardi
Age assessment in children and young adults is a relevant forensic issue. It is requested not only in evaluating criminal responsibility in youths without proper identification documents, often in relation to age thresholds, but also for release of a residency permit, and asylum seekers of minors. The analysis of the Risser sign and the iliac crest ossification process has been proposed as a useful tool for forensic age estimation. We evaluated the applicability of three different age estimation methods on a sample of 497 pelvic radiographs of Italian individuals between 10 and 25 years of age...
June 20, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28634677/p5-medicine-and-justice-the-future-is-now
#5
EDITORIAL
Santo Davide Ferrara
No abstract text is available yet for this article.
June 20, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28624986/temperature-corrected-post-mortem-1-5%C3%A2-t-mri-quantification-of-non-pathologic-upper-abdominal-organs
#6
Nicole Schwendener, Christian Jackowski, Frederick Schuster, Anders Persson, Marcel J Warntjes, Wolf -Dieter Zech
OBJECTIVES: The present study aimed to evaluate if simultaneous temperature-corrected T1, T2, and proton density (PD) 1.5 T post-mortem MR quantification [quantitative post-mortem magnetic resonance imaging (QPMMRI)] is feasible for characterizing and discerning non-pathologic upper abdominal organs (liver, spleen, pancreas, kidney) with regard to varying body temperatures. METHODS: QPMMRI was performed on 80 corpses (25 females, 55 males; mean age 56.2 years, SD 17...
June 17, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28624985/dusp1-and-kcnj2-mrna-upregulation-can-serve-as-a-biomarker-of-mechanical-asphyxia-induced-death-in-cardiac-tissue
#7
Yan Zeng, Li Tao, Jianlong Ma, Liujun Han, Yehui Lv, Pan Hui, Heng Zhang, Kaijun Ma, Bi Xiao, Qun Shi, Hongmei Xu, Long Chen
The incidence of death by asphyxia is second to the incidence of death by mechanical injury; however, death by mechanical asphyxia may be difficult to prove in court, particularly in cases in which corpses do not exhibit obvious signs of asphyxia. To identify a credible biomarker of asphyxia, we first examined the expression levels of 47,000 mRNAs in human cardiac tissue specimens from individuals who died of mechanical asphyxia and compared the expression levels with the levels of the corresponding mRNAs in specimens from individuals who died of craniocerebral injury using microarray...
June 17, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28616692/a-minimally-invasive-method-for-profiling-volatile-organic-compounds-within-postmortem-internal-gas-reservoirs
#8
Katelynn A Perrault, Pierre-Hugues Stefanuto, Lena M Dubois, Vincent Varlet, Silke Grabherr, Jean-François Focant
In forensic casework, non-invasive and minimally-invasive methods for postmortem examinations are extremely valuable. Whole body postmortem computed tomography (PMCT) is often used to provide visualization of the internal characteristics of a body prior to more invasive procedures and has also been used to locate gas reservoirs inside the body to assist in determining cause of death. Preliminary studies have demonstrated that exploiting the volatile organic compounds (VOCs) located in these gas reservoirs by comprehensive two-dimensional gas chromatography-high-resolution time-of-flight mass spectrometry (GC×GC-HRTOF-MS) may assist in providing information regarding the postmortem interval...
June 15, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28616691/the-influence-of-the-counterfort-while-ballistic-testing-using-gelatine-blocks
#9
C Schyma, N Herr, J Brünig, E Brenčičová, R Müller
In wound ballistic research, gelatine blocks of various dimensions are used depending on the simulated anatomical region. When relatively small blocks are used as substitute for a head, problems with regard to the expansion of the gelatine block could arise. The study was conducted to analyse the influence of the material the gelatine block is placed upon. Thirty-six shots were performed on 12 cm gelatine cubes doped with thin foil bags containing acrylic paint. Eighteen blocks each were placed on a rigid table or on a synthetic sponge of 5 cm height...
June 14, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28612206/temperature-corrected-postmortem-3-t-mr-quantification-of-histopathological-early-acute-and-chronic-myocardial-infarction-a-feasibility-study
#10
Anders Persson, John Baeckmann, Johan Berge, Christian Jackowski, Marcel Warntjes, Wolf-Dieter Zech
The goal of the present study was to evaluate if quantitative postmortem cardiac 3-T magnetic resonance (QPMCMR) T1 and T2 relaxation times and proton density values of histopathological early acute and chronic myocardial infarction differ to the quantitative values of non-pathologic myocardium and other histopathological age stages of myocardial infarction with regard to varying corpse temperatures. In 60 forensic corpses (25 female, 35 male), a cardiac 3-T MR quantification sequence was performed prior to autopsy and cardiac dissection...
June 13, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28608146/comparison-of-imaging-planes-during-ct-based-evaluation-of-clavicular-ossification-a-multi-center-study
#11
Philipp Scharte, Volker Vieth, Ronald Schulz, Frank Ramsthaler, Klaus Püschel, Thomas Bajanowski, Heidi Pfeiffer, Andreas Schmeling, Sven Schmidt, Daniel Wittschieber
Determining the ossification stage of the medial clavicular epiphysis by computed tomography represents the currently recommended methodology for the question of whether a living individual has completed the 18th or 21st year of life. In the present study, thin-slice CT scans of 1078 sternoclavicular joints were reconstructed in axial and coronal image series and evaluated according to the two classification systems established for age diagnostics using the clavicle. Both image series (axial and coronal) were analyzed separately...
June 12, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28608145/laundry-in-a-washing-machine-as-a-mediator-of-secondary-and-tertiary-dna-transfer
#12
Lev Voskoboinik, Merav Amiel, Ayeleth Reshef, Ron Gafny, Mark Barash
The aim of this work was to investigate the possibility of secondary and tertiary DNA transfer during laundry. The modes of transfer tested were mixed and separate laundry of worn and unworn garments in household and public washing machines. In addition, the possibility of a background DNA carry-over from a washing machine's drum was investigated. In the mixed (worn and unworn garments washed together) laundry experiment, 22% of samples from new unworn socks with no traceable DNA prior to experiment produced DNA profiles post-laundry...
June 12, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28608144/a-comparison-between-decomposition-rates-of-buried-and-surface-remains-in-a-temperate-region-of-south-africa
#13
Anátulie Marais-Werner, J Myburgh, P J Becker, M Steyn
Several studies have been conducted on decomposition patterns and rates of surface remains; however, much less are known about this process for buried remains. Understanding the process of decomposition in buried remains is extremely important and aids in criminal investigations, especially when attempting to estimate the post mortem interval (PMI). The aim of this study was to compare the rates of decomposition between buried and surface remains. For this purpose, 25 pigs (Sus scrofa; 45-80 kg) were buried and excavated at different post mortem intervals (7, 14, 33, 92, and 183 days)...
June 12, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28589260/allele-frequencies-of-17-autosomal-str-loci-in-the-va-ethnic-minority-from-yunnan-province-southwest-china
#14
Fei Guo
Allele frequencies and forensic parameters for 17 autosomal short tandem repeat (STR) loci were investigated from 1542 individuals of Va ethnic minority in Yunnan Province in the southwest of China. Also, genetic distances between Va and 13 published populations were compared, and a neighbor-joining (NJ) phylogenetic tree was developed and visualized using averaged F ST matrix. Results demonstrate that these loci are highly polymorphic in the Va population and can be applied in forensic, population genetic, and linguistic fields...
June 7, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28589259/molecular-identification-of-victim-species-and-its-sex-from-the-ash-a-case-of-burning-alive-leopard-panthera-pardus
#15
Vipin, Vinita Sharma, Sandeep Kumar Gupta
In a case of negative human-leopard (Panthera pardus) interaction, an animal was burnt alive in South Rajasthan, India. We identified the species and sex of the victim animal from the ash using forensic DNA analysis. We recovered three objects (half burnt clot, stone, and shrub twig) from the ash having suspected blood stains. We extracted DNA from these items and amplified a partial fragment of mitochondrial DNA cytochrome b and 12S RNA genes. The sequence generated from these amplicons suggested that the victim animal was a leopard...
June 6, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28573556/the-influence-of-bone-loss-on-the-three-adult-age-markers-of-the-innominate
#16
Carme Rissech, Jo Appleby, Alessandra Cosso, Francisco Reina, Anna Carrera, Richard Thomas
To evaluate the influence of bone loss on the three adult age markers of the innominate, 30 males and 30 females aged between 16 and 80 years coming from the British Coventry collection were analyzed. The pubic symphysis, auricular surface, and acetabulum age variables were evaluated following the descriptions of Schmitt, Buckberry-Chamberlain, and Rissech, respectively. The second metacarpal cortical index was used to evaluate bone loss. Possible sexual differences in metrical variables were explored by a Student t-test taking into account the entire sample...
June 1, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28567525/forensic-entomotoxicology-revisited-towards-professional-standardisation-of-study-designs
#17
REVIEW
Erica I T da Silva, Brendan Wilhelmi, Martin H Villet
Forensic entomotoxicology is the use of insects as evidence of whether a toxicant is present in an environment such as a corpse, river or landscape. The earliest overtly forensic study was published in 1977, and since then, at least 63 papers have been published, most of them focused on the detection of toxicants in insects or on effects of toxicants on diverse insect indicator taxa. A comprehensive review of the published literature revealed various inconsistencies between studies that could be addressed by introducing standard protocols for such studies...
May 31, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28560543/bone-and-soft-tissue-histology-a-new-approach-to-determine-characteristics-of-offending-instrument-in-sharp-force-injuries
#18
Tania Delabarde, Catherine Cannet, Jean Sébastien Raul, Annie Géraut, Marc Taccoen, Bertrand Ludes
This paper describes a new approach to determine characteristics of the implement used to inflict trauma which involves the histological analysis of exogenous particles. Based on Locard's principle "every contact leaves a trace," we decided to assess whether histological examination of bone and soft tissue around a penetrating injury (sharp force trauma) could provide evidence of the offending implement. Case reports and experimental studies have demonstrated the potential of cut mark features in bone to identify the causative implement and potentially assist in identifying the perpetrator...
May 30, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28547136/curiosities-of-x-chromosomal-markers-and-haplotypes
#19
Daniel Kling
Recent progress in forensic genetics has introduced a number of closely located short tandem repeat (STR) markers on the X chromosome. Inevitably, dependencies arise that have to be accounted for. This paper will in detail explore the complex statistical interpretation of X-chromosomal STR markers, focusing on likelihood calculations. Specifically, we will investigate how the phase uncertainty of haplotypes comes into play in the statistical evaluations and what curious effects this phenomenon can have. The starting point is the different real cases where the weight of evidence has provided unexpected results that require further investigation in order to be fully understood...
May 26, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28536882/penetrating-chest-trauma-caused-by-a-blank-cartridge-actuated-rubber-ball-projectile-case-presentation-and-ballistic-investigation-of-an-uncommon-weapon-type
#20
Matthias Frank, Dieter Peters, Wolfram Klemm, Rico Grossjohann, Axel Ekkernkamp, Britta Bockholdt, Julia Seifert
Recently, an increasing number of an uncommon weapon type based on a caliber 6-mm Flobert blank cartridge actuated revolver which discharges 10-mm-diameter rubber ball projectiles has been confiscated by police authorities following criminal offenses. A recent trauma case presenting with a penetrating chest injury occasioned an investigation into the basic ballistic parameters of this type of weapon. Kinetic energy E of the test projectiles was calculated between 5.8 and 12.5 J. Energy density ED of the test projectiles was close to or higher than the threshold energy density of human skin...
May 23, 2017: International Journal of Legal Medicine
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