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https://www.readbyqxmd.com/read/28636089/geographic-substructure-in-craniometric-estimates-of-admixture-for-contemporary-american-populations
#1
Bridget F B Algee-Hewitt
OBJECTIVES: This study investigates heterogeneity in craniometrically-derived estimates of admixture in order to reveal population substructure in a sample of Black, White, Hispanic, and Native American individuals from the FDB. It reports evidence of spatial trends in population-specific patterns of admixture and contextualizes its results in terms of demographic diversity in the United States. MATERIALS AND METHODS: The FDB was sampled to capture the population variation within forensic casework, skeletal collections, and the U...
June 21, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28631109/increasing-the-reach-of-forensic-genetics-with-massively-parallel-sequencing
#2
REVIEW
Bruce Budowle, Sarah E Schmedes, Frank R Wendt
The field of forensic genetics has made great strides in the analysis of biological evidence related to criminal and civil matters. More so, the discipline has set a standard of performance and quality in the forensic sciences. The advent of massively parallel sequencing will allow the field to expand its capabilities substantially. This review describes the salient features of massively parallel sequencing and how it can impact forensic genetics. The features of this technology offer increased number and types of genetic markers that can be analyzed, higher throughput of samples, and the capability of targeting different organisms, all by one unifying methodology...
June 19, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28629236/advances-in-new-psychoactive-substances-identification-the-u-r-i-to-n-consortium
#3
Elisabetta Bertol, Fabio Vaiano, Francesco Mari, Maria Grazia Di Milia, Silvia Bua, Claudiu T Supuran, Fabrizio Carta
Identification of new psychoactive substances (NPS) in biological and non-biological samples represents a hard challenge for forensic toxicologists. Their great chemical variety and the speed with which new NPS are synthesised and spread make stringent the need of advanced tools for their detection based on multidisciplinary approaches. For this reason, in August 2016, the "Unit of Research and Innovation in Forensic Toxicology and Neuroscience of Addiction" (U.R.I.To.N.) was founded by the Forensic Toxicology Division of the University of Florence...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28628900/evaluation-of-the-innotyper-%C3%A2-21-genotyping-kit-in-multi-ethnic-populations
#4
Peter Gustav Ristow, Nicole Barnes, Gina Pineda Murphy, Hiromi Brown, Kevin Wesley Cloete, Maria Eugenia D'Amato
We report the findings of the evaluation of the InnoTyper(®) 21 genotyping kit for the use of human identification (HID) and paternity testing in South Africa. This novel forensic kit evaluates 20 retrotransposable elements (AC4027, MLS26, ALU79712, NBC216, NBC106, RG148, NBC13, AC2265, MLS09, AC1141, TARBP, AC2305, HS4.69, NBC51, ACA1766, NBC120, NBC10, NBC102, SB19.12 and NBC148) and the Amelogenin locus for sex determination. The evaluation of the genotyping performance showed no significant spectral pull-up for peak heights between 100 and 30,000 RFUs...
June 7, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28608145/laundry-in-a-washing-machine-as-a-mediator-of-secondary-and-tertiary-dna-transfer
#5
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/28605650/body-fluid-prediction-from-microbial-patterns-for-forensic-application
#6
Eirik Nataas Hanssen, Ekaterina Avershina, Knut Rudi, Peter Gill, Lars Snipen
The association of a DNA profile with a certain body fluid can be of essential importance in the evaluation of biological evidence. Several alternative methods for body fluid prediction have been proposed to improve the currently used presumptive tests. Most of them measure gene expression. Here we present a novel approach based on microbial taxonomic profiles obtained by standard 16S rRNA gene sequencing. We used saliva deposited on skin as a forensically relevant study model, but the same principle can be applied for predicting other bacteria rich body fluids...
June 1, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28605649/direct-str-typing-from-presumptively-tested-and-untreated-body-fluids
#7
Phuvadol Thanakiatkrai, Krittika Raham, Jintana Pradutkanchana, Sujettana Sotthibandhu, Thitika Kitpipit
Body fluids provide key pieces of information for a forensic investigation. However, sometimes only a small amount of body fluids is found and/or DNA are also degraded by environmental factors at the crime scene. In extreme cases, a forensic analyst may have to decide whether to perform a presumptive test on the stains or proceed straightaway to DNA profiling, which could be wasteful for non-biological stains. Additionally, due to the inefficient DNA extraction process, the amount of DNA may not be enough for STR typing, especially if parts of the evidence had been subjected to presumptive testing...
June 6, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28601979/young-people-s-awareness-on-biobanking-and-dna-profiling-results-of-a-questionnaire-administered-to-italian-university-students
#8
Pamela Tozzo, Antonio Fassina, Luciana Caenazzo
Current policy approaches to social and ethical issues surrounding biobanks manifest lack of public information given by researchers and government, despite the evidence that Italian citizens are well informed about technical and other public perspectives of biotechnologies. For this reason, the focus of our survey was to interview our University's students on these aspects. The sample consisted of Padua University students (N = 959), who were administered a questionnaire comprising eight questions covering their knowledge about biobanks, their perception of the related benefits and risks, their willingness to donate samples to a biobank for research purposes, their attitude to having their own DNA profile included in a forensic DNA database, and the reasons behind their answers...
December 2017: Life Sciences, Society and Policy
https://www.readbyqxmd.com/read/28600961/uplc-ms-ms-assay-for-identification-and-quantification-of-brivaracetam-in-plasma-sample-application-to-pharmacokinetic-study-in-rats
#9
Muzaffar Iqbal, Essam Ezzeldin, Khalid A Al-Rashood
Brivaracetam (BVR) is a novel antiepileptic drug (AED), approved clinically for the treatment of partial onset seizures in adults and adolescents. It has some abuse potential and assigned to Schedule V category under the Controlled Substance Act by the Drug Enforcement Administration. Being an AED and drug of abuse, a sensitive and robust assay is necessary for determination of BVR in biological fluids. Herein, we report a sensitive and validated UPLC-MS/MS assay for identification and quantification of BVR in plasma samples...
June 4, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28594054/personality-patterns-predict-the-risk-of-antisocial-behavior-in-spanish-speaking-adolescents
#10
Miguel A Alcázar-Córcoles, Antonio Verdejo-García, José C Bouso-Sáiz, Javier Revuelta-Menéndez, Ezequiel Ramírez-Lira
INTRODUCTION: There is a renewed interest in incorporating personality variables in criminology theories in order to build models able to integrate personality variables and biological factors with psychosocial and sociocultural factors. The aim of this article is the assessment of personality dimensions that contribute to the prediction of antisocial behavior in adolescents. METHODS: For this purpose, a sample of adolescents from El Salvador, Mexico, and Spain was obtained...
May 2017: Actas Españolas de Psiquiatría
https://www.readbyqxmd.com/read/28591763/non-linear-formation-of-etg-and-faees-after-controlled-administration-of-low-to-moderate-doses-of-ethanol
#11
Clara Pérez-Mañá, Magí Farré, Antoni Pastor, Francina Fonseca, Marta Torrens, Esther Menoyo, Mitona Pujadas, Silvia Frias, Klaus Langohr, Rafael de la Torre
Aims: Ethyl glucuronide (EtG) and fatty acid ethyl esters (FAEEs) are non-oxidative metabolites of alcohol that can be detected in conventional and non-conventional biological matrices for longer periods than alcohol. The aim was to describe the time courses of both biomarkers after ingestion of acute low-moderate doses of ethanol. Methods: The study design was double-blind, randomized, crossover and controlled with placebo. Participants were distributed in three different cohorts: (a) Cohort-1: two doses of 18 and 30 g of ethanol and placebo were administered to 12 subjects; (b) Cohort-2: two doses of 6 and 12 g of ethanol and placebo were administered to six subjects and (c) Cohort-3: two doses of 24 and 42 g of ethanol and placebo were administered to six subjects...
June 7, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28587639/unravelling-mummies-cryptic-diversity-host-specificity-trophic-and-coevolutionary-interactions-in-psyllid-parasitoid-food-webs
#12
Aidan A G Hall, Martin J Steinbauer, Gary S Taylor, Scott N Johnson, James M Cook, Markus Riegler
BACKGROUND: Parasitoids are hyperdiverse and can contain morphologically and functionally cryptic species, making them challenging to study. Parasitoid speciation can arise from specialisation on niches or diverging hosts. However, which process dominates is unclear because cospeciation across multiple parasitoid and host species has rarely been tested. Host specificity and trophic interactions of the parasitoids of psyllids (Hemiptera) remain mostly unknown, but these factors are fundamentally important for understanding of species diversity, and have important applied implications for biological control...
June 6, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28585764/evaluation-of-commercial-off-the-shelf-materials-for-the-preservation-of-bacillus-anthracis-vegetative-cells-for-forensic-analysis
#13
Daniel J Angelini, Jacquelyn V Harris, Laura L Burton, Pooja R Rastogi, Lisa S Smith, Vipin K Rastogi
Environmental surface sampling is crucial in determining the zones of contamination and overall threat assessment. Viability retention of sampled material is central to such assessments. A systematic study was completed to determine viability of vegetative cells under nonpermissive storage conditions. Despite major gains in nucleic acid sequencing technologies, initial positive identification of threats must be made through direct culture of the sampled material using classical microbiological methods. Solutions have been developed to preserve the viability of pathogens contained within clinical samples, but many have not been examined for their ability to preserve biological agents...
June 6, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28577456/dna-decontamination-of-fingerprint-brushes
#14
Bianca Szkuta, Roland A H van Oorschot, Kaye N Ballantyne
Genetic profiling of DNA collected from fingerprints that have been exposed to various enhancement techniques is routine in many forensic laboratories. As a result of direct contact with fingermark residues during treatment, there is concern around the DNA contamination risk of dusting fingermarks with fingerprint brushes. Previous studies have demonstrated the potential for cross-contamination between evidentiary items through various mechanisms, highlighting the risk of using the same fingerprint brush to powder multiple surfaces within and between crime-scenes...
May 22, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28555942/a-review-of-chromatographic-methods-for-ketamine-and-its-metabolites-norketamine-and-dehydronorketamine
#15
REVIEW
Eylem Funda Göktaş, Filiz Ariöz
Ketamine has a synthetic, sedative, non-barbiturate and fast-acting anesthetic properties and it is commonly used in both humans and veterinary surgery. There are many analytical methods available for the qualitative and quantitative determination of Ketamine and its metabolites. This review gives information for the implementation of methods to support ketamine and its metabolites studies in researchs and it could be useful in forensic sciences in addition to doping control, human and animal clinical surgery...
May 27, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28549543/paternity-testing-at-the-department-of-forensic-medicine-of-wroclaw-medical-university-poland
#16
Anna Karpiewska, Elżbieta Kowalczyk, Tadeusz Dobosz
Evidentiary materials in court cases comprise the testimony of all relevant parties and witnesses, physical and biological evidence, and the stage of child's development at the moment of birth. In this study, an analysis was made of results obtained between 1966 and 2014 from paternity testing capable of providing biological evidence for court cases. During this time, 16,508 opinions were released, with exclusion of paternity in 4182 cases. The analysis of the total percentage of exclusions in individual years over the entire period of 49years turned out to be very interesting...
May 2017: Legal Medicine
https://www.readbyqxmd.com/read/28544956/dna-commission-of-the-international-society-for-forensic-genetics-isfg-guidelines-on-the-use-of-x-strs-in-kinship-analysis
#17
Andreas O Tillmar, Daniel Kling, John M Butler, Walther Parson, Mechthild Prinz, Peter M Schneider, Thore Egeland, Leonor Gusmão
Forensic genetic laboratories perform an increasing amount of genetic analyses of the X chromosome, in particular to solve complex cases of kinship analysis. For some biological relationships X-chromosomal markers can be more informative than autosomal markers, and there are a large number of markers, methods and databases that have been described for forensic use. Due to their particular mode of inheritance, and their physical location on a single chromosome, some specific considerations are required when estimating the weight of evidence for X-chromosomal marker DNA data...
May 13, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28535443/independent-validation-of-body-fluid-specific-cpg-markers-and-construction-of-a-robust-multiplex-assay
#18
Hannah Holtkötter, Vanessa Beyer, Kristina Schwender, Alina Glaub, Kristina Schulze Johann, Marianne Schürenkamp, Ursula Sibbing, Sabrina Banken, Peter Wiegand, Heidi Pfeiffer, Lynn Dennany, Marielle Vennemann, Marielle Vennemann
Potential forensic use of tissue-specific DNA methylation markers has recently been discussed for the identification of the biological source of a stain. In this study 13 promising markers were evaluated to identify suitable candidate markers for the development of a robust and reliable multiplex assay. The results of this study suggest that a combination of only four highly informative markers will be enough for clear body fluid identification. A multiplex assay was developed for the identification of menstrual blood, saliva, semen, and venous blood...
May 9, 2017: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28520764/rib-biomechanical-properties-exhibit-diagnostic-potential-for-accurate-ageing-in-forensic-investigations
#19
Andrea Bonicelli, Bledar Xhemali, Elena F Kranioti, Peter Zioupos
Age estimation remains one of the most challenging tasks in forensic practice when establishing a biological profile of unknown skeletonised remains. Morphological methods based on developmental markers of bones can provide accurate age estimates at a young age, but become highly unreliable for ages over 35 when all developmental markers disappear. This study explores the changes in the biomechanical properties of bone tissue and matrix, which continue to change with age even after skeletal maturity, and their potential value for age estimation...
2017: PloS One
https://www.readbyqxmd.com/read/28511094/isolation-and-genetic-analysis-of-pure-cells-from-forensic-biological-mixtures-the-precision-of-a-digital-approach
#20
F Fontana, C Rapone, G Bregola, R Aversa, A de Meo, G Signorini, M Sergio, A Ferrarini, R Lanzellotto, G Medoro, G Giorgini, N Manaresi, A Berti
Latest genotyping technologies allow to achieve a reliable genetic profile for the offender identification even from extremely minute biological evidence. The ultimate challenge occurs when genetic profiles need to be retrieved from a mixture, which is composed of biological material from two or more individuals. In this case, DNA profiling will often result in a complex genetic profile, which is then subject matter for statistical analysis. In principle, when more individuals contribute to a mixture with different biological fluids, their single genetic profiles can be obtained by separating the distinct cell types (e...
May 1, 2017: Forensic Science International. Genetics
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