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forensic toxicology

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https://www.readbyqxmd.com/read/28714411/pharmacology-and-literature-review-based-on-related-death-and-non-fatal-case-reports-of-the-benzofurans-and-benzodifurans-designer-drugs
#1
Bernardino Barceló Martín, Isabel Gomila
BACKGROUND: Benzofurans and benzodifurans are two groups of psychoactive substances that had originally been synthesized for research purpose. Benzofurans' structure is quite similar to the known recreational drug 3,4-methylenedioxymethamphetamine together with its active metabolite 3,4-methylenedioxyamphetamine. Benzodifurans are closely related to phenethylamines, but have more hallucinogens effects and much longer duration of action. This study aims to review the accessible evidence-based literature on benzofurans and benzodifurans pharmacology and toxicology...
July 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28714407/update-of-standard-practices-for-new-method-validation-in-forensic-toxicology
#2
Sarah M R Wille, Wim Coucke, Thierry De Baere, Frank T Peters
: International agreement concerning validation guidelines is important as reporting reliable analytical data is the backbone of forensic bioanalytical research and applications. Guidelines such as those provided by the US Food and Drug Administration (FDA), the European Medicines Agency (EMA), the German speaking Gesellschaft für Toxikologie und Forensische Chemie (GTFCH) and the Scientific Working Group of Forensic Toxicology (SWGTOX) provide a standard for fundamental validation parameters such as selectivity, matrix effects, method limits, calibration, accuracy and stability, as well as other parameters such as carryover, dilution integrity and incurred sample reanalysis...
July 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28710688/death-by-food
#3
Roger W Byard
Although death from food is not an uncommon finding in forensic facilities worldwide, the range of underlying lethal mechanisms and associated conditions that should be sought at the time of autopsy is quite disparate. Deaths may occur from i) infectious agents including bacteria, viruses, protozoa, cestodes, nematodes and prions; ii) natural toxins including amanita toxins, tetrodotoxin, ciguatera and scombroid; iii) anaphylaxis; iv) poisoning; v) mechanical issues around airway and gut obstruction and/or perforation; and vi) miscellaneous causes...
July 15, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28704207/the-adult-male-rape-victim-forensic-description-of-a-series-of-57-cases
#4
Michelangelo Bruno Casali, Elisa Palazzo, Alberto Blandino, Alessio Battistini, Francesca Motta, Alessandra Kustermann, Cristina Cattaneo
A retrospective analysis on 57 adult male victims of sexual violence has been performed. Age, nationality and anamnesis of the victims, location of the assault, type of violence, number and identity of the assailants, presence of physical injuries, lapse of time between the assault and the request of medical assistance, and toxicological and semen detection tests were analyzed. Victims were mostly in the 31- to 40-year age group. Ten victims referred themselves as either active homosexuals or bisexuals. Forced oral and/or anal penetration was registered in 86...
July 13, 2017: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/28696835/urinary-cadmium-levels-in-active-and-retired-coal-miners
#5
Julia Isermann, Hans-Martin Prager, Rainer Ebbinghaus, Beata Janasik, Wojciech Wasowicz, Bertinus Dufaux, Hans-Friedrich Meyer, Agata Widera, Silvia Selinski, Jan G Hengstler, Klaus Golka
A meta-analysis, based upon 24 publications, showed a significantly elevated risk for urinary bladder cancer amongst miners. In European underground hard coal mining areas, an increased risk for urinary bladder cancer development was noted among hard coal miners, in particular in three investigations in the greater Dortmund area. However, the cause remains unclear. As cadmium (Cd), which was reported to be a bladder carcinogen in humans and is a constituent of coal, the aim of this study was to determine urinary Cd levels in active and retired hard coal miners and assess whether hard coal miners demonstrated elevated metal levels...
July 11, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28691766/detection-of-metabolites-of-the-new-synthetic-cannabinoid-cumyl-4cn-binaca-in-authentic-urine-samples-and-human-liver-microsomes-using-high-resolution-mass-spectrometry
#6
Yeter Erol Ozturk, Oya Yeter, Serkan Ozturk, Goksun Karakus, Ismail Ates, Yalçın Buyuk, Turkan Yurdun
CUMYL-4CN-BINACA(1-(4-cyanobutyl)-N-(2-phenylpropan-2-yl)-1H-indazole-3-carboxamide) is a recently introduced indazole-3-carboxamide type synthetic cannabinoid (SC) that was detected in herbal incense seized by of the Council of Forensic Medicine Istanbul Narcotics Department in May 2016 in Turkey. Recently introduced SCs are not detected in routine toxicological analysis; therefore, analytical methods to measure these compounds are in demand. The present study aims to identify urinary marker metabolites of CUMYL-4CN-BINACA by investigating its metabolism in human liver microsomes and to confirm the results in authentic urine samples (n=80)...
July 10, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28690283/postmortem-computed-tomographic-analysis-of-death-caused-by-oral-drug-intoxication
#7
Akihito Usui, Yusuke Kawasumi, Kiyotaka Usui, Yuya Ishizuka, Kaito Takahashi, Masato Funayama, Haruo Saito
Traditional autopsy has changed little in the past century. In Japan, the rate of forensic autopsy in cases of unusual death is very low. Therefore, multi-slice computed tomography (CT) has been used to obtain imaging data instead of or in addition to autopsy in suspicious forensic cases. In our institute, postmortem multi-slice CT has been performed since 2009, and by 2014 there were over 1,000 cases. Our extensive experience with postmortem CT shows that in many cases of death by drug overdose, stomach contents exhibit high X-ray absorption...
2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28689029/course-constructions-a-case-base-of-forensic-toxicology
#8
Nan Zhou, Yeda Wu, Terry Su, Liyong Zhang, Kun Yin, Da Zheng, Jingjing Zheng, Lei Huang, Qiuping Wu, Jianding Cheng
Forensic toxicology education in China is limited by insufficient teaching methods and resources, resulting in students with adequate theoretical principles but lacking practice experience. Typical cases used as teaching materials vividly represent intoxication and provide students with an opportunity to practice and hone resolving skills. In 2013, the Department of Forensic Pathology at Zhongshan School of Medicine began to construct top-quality courses in forensic toxicology, with its first step, creating a base containing typical cases of intoxication...
June 28, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/28686962/forensic-aspects-of-homicides-by-insulin-overdose
#9
Fang Tong, Rongqi Wu, Wen Huang, Yi Yang, Lin Zhang, Biao Zhang, Xin Chen, Xiaohui Tang, Yiwu Zhou
Analysis of homicidal insulin overdose is a challenging task in forensic practice because of the difficulties in toxicological analysis as well as the elusive pathologic changes. We performed a detailed histopathologic examination on four autopsy cases involving insulin homicide, using H&E, immunohistochemistry (IHC) and immunofluorescence assays. Severe reactive astrocyte proliferation was obvious in the white matter of the cerebrum, corpus callosum, cerebellum and brain stem, especially in subcortical regions...
June 20, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28682757/-forensic-examination-of-sexual-assault-victims-medical-aspects-and-associations-with-the-legal-outcomes
#10
M Kolopp, E Delbaere-Crespo, C Lecossec, F Guillet-May, H Coudane, L Martrille
OBJECTIVES: To describe the medical and legal characteristics of sexual assault victims and to highlight which aspects of the medical examination may be associated with a conviction of the alleged offender. METHODS: This study included all women who consulted to the center for the victims of sexual assault in Nancy between 2008 and 2012 and who filed a complaint. Associations were evaluated with a logistic regression trying to explain the presence of a conviction at the end of the legal proceeding...
March 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/28681613/the-toxicological-significance-of-post-mortem-drug-concentrations-in-bile
#11
Robin E Ferner, Jeffrey K Aronson
CONTEXT: Some authors have proposed that post-mortem drug concentrations in bile are useful in estimating concentrations in blood. Both The International Association of Forensic Toxicologists (TIAFT) and the US Federal Aviation Administration recommend that samples of bile should be obtained in some circumstances. Furthermore, standard toxicological texts compare blood and bile concentrations, implying that concentrations in bile are of forensic value. AIM: To review the evidence on simultaneous measurements of blood and bile drug concentrations reported in the medical literature...
July 6, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28677506/mephedrone-concentrations-in-cases-of-clinical-intoxication
#12
Esther Papaseit, Eulàlia Olesti, Rafael de la Torre, Marta Torrens, Magí Farré
Background Mephedrone (4-methylmethcathinone, 4-MMC), a ring-substituted synthetic cathinone derivative has become established as a permanent illicit drug in the dynamic new psychoactive substances (NPS) scene. Objective This review summarizes current knowledge on mephedrone concentrations in biological samples from cases of acute intoxications (fatal and non-fatal), pharmacokinetics studies, wastewater and anonymous pooled urine analysis in order to provide an overview of the reliable scientific knowledge on toxicokinetics of mephedrone in humans...
July 4, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28677500/good-practices-in-forensic-toxicology
#13
Olaf H Drummer
This manuscript provides an overview for analysts, medical and scientific investigators, and laboratory administrators, the range of factors that should be considered to implement best practice forensic toxicology. These include laboratory influence over the collection of specimens, their proper transport and chain-of-custody before arrival in the laboratory. In addition, the laboratory needs to ensure properly trained staff use suitably validated and documented analytical procedures that meet the intended purpose and type of case in an accredited or suitably quality oriented management system...
July 4, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28677498/nails-in-forensic-toxicology-an-update
#14
Renata Solimini, Adele Minutillo, Chrystalla Kyriakou, Simona Pichini, Roberta Pacifici, Francesco Paolo Busardò
BACKGROUND: The analysis of nails as a keratinized matrix to detect drugs or illicit substances has been increasingly used in forensic and clinical toxicology as a complementary test, especially for the specific characteristics of stably accumulating substances for long periods of time. This allows a retrospective investigation of chronic drug abuse, monitoring continuous drug or pharmaceutical use, reveal in utero drug exposure or environmental exposures. METHODS: We herein review the recent literature investigating drug incorporation mechanisms and drug detection in nails for forensic toxicological purposes...
July 4, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28668480/a-new-challenge-in-forensic-toxicology-exemplified-by-a-case-of-murder-under-the-influence-of-a-synthetic-cannabinoid-am-2201
#15
Sebastian Rojek, Małgorzata Kłys, Martyna Maciów-Głąb, Karol Kula
Among new psychoactive substances (NPS) available on the narcotic market, a significant number consists of synthetic cannabinoids commonly known as smokable herbal "spice" and "K2", and which are legally treated as a legal alternative to marijuana. The dearth of information on the pharmacology of these intoxicants as they are introduced into the market has created the urgent need among healthcare providers for case studies on the substances belonging to this group, both in terms of the consequences of using such intoxicants, and in methods of detection...
June 24, 2017: Legal Medicine
https://www.readbyqxmd.com/read/28667187/impact-of-novel-psychoactive-substances-on-clinical-and-forensic-toxicology-and-global-public-health
#16
Marilyn A Huestis, Simon D Brandt, Suman Rana, Volker Auwärter, Michael H Baumann
No abstract text is available yet for this article.
June 30, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28656957/-the-contribution-of-e-o-mukhin-to-the-development-of-forensic-medicine-in-russia-during-the-first-half-of-the-xixth-century-on-the-occasion-of-his-250th-birthday-anniversary
#17
Yu I Pigolkin, Yu V Lomakin
Efrem Osipovich Mukhin, actual state councilor, was a known surgeon, anatomist, physiologist, toxicologist, and hygienist. He is honoured as one of the founders of the Russian school of forensic medical expertise and traumatology. During 22 years, E.O. Mukhin headed the Department of Anatomy, Physiology and Forensic Medicine at the Moscow Imperial University where he taught forensic medicine, anatomy, physiology, toxicology, and medical police. He was the first Russian scientist to develop the fundamentals of reflexology and most comprehensively present the problem of integration of the organism and its environment...
2017: Sudebno-meditsinskaia Ekspertiza
https://www.readbyqxmd.com/read/28641536/overview-of-forensic-toxicology-yesterday-today-and-in-the-future
#18
Heesun Chung, Sanggil Choe
BACKGROUND: The scope of forensic toxicology has been tremendously expanded over the past 50 years. From two general sections forensic toxicology can be further classified into 8-9 sections. METHODS: The most outstanding improvement in forensic toxicology is the changes brought by instrumental development. The field of forensic toxicology was revolutionized by the development of immunoassay and bench-top GC-MS in the 1980's and LC-MS-MS in 2000's. Detection of trace amounts of analytes has allowed the use of new specimens such as hair and oral fluids, along with blood and urine...
June 22, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28641530/method-development-in-forensic-toxicology
#19
Frank T Peters, Dirk K Wissenbach, Francesco Paolo Busardò, Emilia Marchei, Simona Pichini
BACKGROUND: In the field of forensic toxicology, the quality of analytical methods is of great importance to ensure the reliability of results and to avoid unjustified legal consequences. A key to high quality analytical methods is a thorough method development. METHODS: The presented article will provide an overview on the process of developing methods for forensic applications. RESULTS: This includes the definition of the method's purpose (e...
June 22, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28637216/qualitative-analysis-and-detection-of-the-pyrolytic-products-of-jwh-018-and-11-additional-synthetic-cannabinoids-in-the-presence-of-common-herbal-smoking-substrates
#20
Stephen Raso, Suzanne Bell
Synthetic cannabinoids have become a ubiquitous challenge in forensic toxicology and seized drug analysis. Thermal degradation products have yet to be identified and evaluated for toxicity in comparison to parent and metabolic compounds. An investigation into these pyrolytic products, as the major route of ingestion is inhalation, may produce additional insight to understand the toxicity of synthetic cannabinoids. The pyrolysis of JWH-018 and 11 additional synthetic cannabinoids and six herbal plant substrates were conducted using an in-house constructed smoking simulator...
June 20, 2017: Journal of Analytical Toxicology
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