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Journal of Analytical Toxicology

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https://www.readbyqxmd.com/read/28096302/postmortem-and-toxicological-findings-in-a-series-of-furanylfentanyl-related-deaths
#1
Davide Guerrieri, Emma Rapp, Markus Roman, Henrik Druid, Robert Kronstrand
Over the course of 4 months in 2015 and 2016, a cluster of seven fatal intoxications involving the opioid-analogue furanylfentanyl occurred in Sweden; toxicological analysis showed presence of furanylfentanyl either as the only drug or in combination with other illicit substances. Previous publications have only reported non-lethal furanylfentanyl intoxications. In the cases presented here, furanylfentanyl intoxication-alone or in combination with other drugs-was determined to be the cause of death by the responsible pathologist...
January 17, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28069869/determination-of-%C3%A2-9-tetrahydrocannabinol-thc-11-hydroxy-thc-11-nor-9-carboxy-thc-and-cannabidiol-in-human-plasma-using-gas-chromatography-tandem-mass-spectrometry
#2
David M Andrenyak, David E Moody, Matthew H Slawson, Daniel S O'Leary, Margaret Haney
Two marijuana compounds of particular medical interest are delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD). A gas chromatography-tandem mass spectrometry (GC-MS-MS) method was developed to test for CBD, THC, hydroxy-THC (OH-THC) and carboxy-THC (COOH-THC) in human plasma. Calibrators (THC and OH-THC, 0.1 to 100; CBD, 0.25 to 100; COOH-THC, 0.5-500 ng/mL) and controls (0.3, 5 and 80 ng/mL, except COOH-THC at 1.5, 25 and 400 ng/mL) were prepared in blank matrix. Deuterated (d3) internal standards were added to 1-mL samples...
January 8, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28069868/liquid-chromatography-tandem-mass-spectrometric-analysis-of-octaethylene-glycol-monodecyl-ether-in-rat-plasma-and-its-application-to-pharmacokinetic-studies
#3
Hyeon Kim, Hyeong Jun Kim, Min Sun Choi, In Sook Kim, Myung Chan Gye, Hye Hyun Yoo
Alcohol ethoxylates (AEs) are a major class of non-ionic surfactants, which are widely used in household, institutional and industrial cleaners, and they are considered as an alternative of nonylphenol. In this study, a rapid, sensitive and reliable bioanalytical method was developed for the determination of octaethylene glycol monodecyl ether (C10E8, an AE) in rat plasma using liquid chromatography-tandem mass spectrometry (LC-MS-MS). Chromatographic separation was performed on a reversed-phase C18 column (2...
January 8, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28035035/analysis-of-u-47700-a-novel-synthetic-opioid-in-human-urine-by-lc-ms-ms-and-lc-qtof
#4
Steven W Fleming, Justin C Cooley, Leonard Johnson, C Clinton Frazee, Kristina Domanski, Kurt Kleinschmidt, Uttam Garg
The illicit drug market has rapidly evolved from synthetic cannabinoids to cathinone derivatives and now a new emerging threat of synthetic opioids. These compounds were mostly developed by pharmaceutical companies during drug discovery. The new psychoactive substances are not routinely covered in drug screening and may go undetected. Recently fentanyl analogous, AH-7921, MT-45 and now U-47700 have been encountered in clinical and forensic casework. U-47700 is gaining popularity on drug user forms as a legal alternative to heroin...
December 29, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28035034/identification-of-suvorexant-in-urine-using-liquid-chromatography-quadrupole-time-of-flight-mass-spectrometry-lc-q-tof-ms
#5
Sydney Sullinger, Kelsie Bryand, Sarah Kerrigan
Suvorexant (Belsomra(®)) is a new hypnotic drug with a novel mechanism of action. In prescribed doses of 10 mg before bedtime, the drug produces rapid onset of sleep by inhibiting the orexin neurons of the arousal system, promoting decreased wakefulness. Suvorexant is a potent and highly selective dual orexin receptor antagonist. Sedative hypnotics are of forensic importance due to their widespread use, potential for additive effects with other central nervous system depressants, impairing effects and potential for misuse...
December 29, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28035033/cross-validation-of-hs-gc-ms-to-quantify-total-carbon-dioxide-in-horse-plasma
#6
Brendan Heffron, Jennifer Bash, A Karl Larsen
The use of alkinizing agents by trainers to counteract the accumulation of lactic acid in racehorses has been well documented. A by-product of this administration is elevated total carbon dioxide (tCO2) concentrations. Most regulatory authorities have set the threshold for tCO2 in plasma at 37 mM. The quantification of tCO2 often presents a challenge to laboratories due to the instrumentation required, which can be expensive to use and maintain. The Beckman DxC 600 (Brea, CA) is currently used in our laboratory for tCO2 quantification...
December 29, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28013286/positive-predictive-value-of-pcp-immunoassay-at-uc-san-diego-health
#7
LETTER
Imir G Metushi, Robert Fitzgerald, Amadeo Pesce
No abstract text is available yet for this article.
December 23, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27999095/a-case-report-of-fatal-desmethyl-carbodenafil-toxicity
#8
Erica L Bakota, Anna T Kelly, Jeffrey P Walterscheid, Darshan R Phatak
We present the case report of a 34-year-old Hispanic male who was found unresponsive in the carport of his residence. Surveillance video footage from a security camera showed that he collapsed as he was walking to his vehicle. The decedent had no medical history and no history of illicit drug use. Initial toxicology testing revealed no alcohol or illicit drugs. Autopsy findings indicated a need for additional toxicological analysis due to a lack of trauma and the paucity of pathophysiologically significant natural disease...
December 19, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27979929/comparative-evaluation-of-drug-deposition-in-hair-samples-collected-from-different-anatomical-body-sites
#9
Manolis N Tzatzarakis, Athanasios K Alegakis, Matthaios P Kavvalakis, Elena Vakonaki, Polychronis D Stivaktakis, Katerina Kanaki, Alexander I Vardavas, Emmanouil G Barbounis, Aristidis M Tsatsakis
In this study, we focused on the validation of a method for the simultaneous detection and quantification of cannabinoids, cocaine and opiates in hair as well as on the distribution of the drugs deposition in hair collected from different anatomical body sites. The proposed analytical procedure was validated for various parameters such as selectivity, linearity, limit of quantification, precision, accuracy, matrix effect and recovery. Four hundred and eighty-one samples were collected during 2010-2015 from 231 drug abusers...
December 15, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27979928/lc-ms-ms-method-for-analysis-of-benzodiazepines-in-wastewater-during-football-games-iv
#10
Brandon Stamper, Waseem Gul, Murrell Godfrey, Shahbaz W Gul, Mahmoud A ElSohly
Continuing our studies for the analyses of drugs of abuse in municipal wastewater, a method was developed for the analysis of benzodiazepines in wastewater samples using liquid chromatography coupled with tandem mass spectrometry (LC-MS-MS). Ten benzodiazepines and metabolites were analyzed (structures were found), including alprazolam, α-OH-alprazolam (the primary urinary metabolite of alprazolam), chlordiazepoxide, flurazepam, 2-OH-ethylflurazepam (the primary urinary metabolite of flurazepam), 7-NH2-flunitrazepam, nordiazepam, oxazepam, temazepam and α-OH-triazolam (the primary urinary metabolite of triazolam) (representative chromatograms were found)...
December 15, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27979927/determination-of-aflatoxin-b1-lysine-in-pig-serum-and-plasma-by-liquid-chromatography-tandem-mass-spectrometry
#11
Mayra C Di Gregorio, Alessandra V Jager, Aline A Costa, Keliani Bordin, George E Rottinhghaus, Tânia Petta, Pollyana C M C Souto, Fabio E L Budiño, Carlos A F Oliveira
Aflatoxin B1 (AFB1) is a hepatocarcinogen produced by certain Aspergillus species growing on crops. After biotransformation in the liver, AFB1 generates several metabolites, one of which is AFB1 bound to lysine on serum albumin. AFB1-lysine (AFB1-lys) is a digest product of AFB1-albumin and is considered a biomarker of exposure to AFB1 in humans and animals. The objectives of this paper were to evaluate the performance characteristics of a new analytical method for determination of AFB1-lys levels in pig serum, heparinized and ethylenediaminetetraacetic acid (EDTA) plasma and to evaluate the interference of these anticoagulants in AFB1-lys quantification...
December 15, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27881622/stability-of-21-cocaine-opioid-and-benzodiazepine-drug-analytes-in-spiked-meconium-at-three-temperatures
#12
Fang Wu, Stephanie J Marin, Gwendolyn A McMillin
In this study, the stability of 21 cocaine, opioid and benzodiazepine analytes in spiked meconium was investigated at three storage temperatures: 4°C, room temperature (RT), and 37°C (body temperature). The drugs/metabolites included were hydrocodone, hydromorphone, codeine, morphine, 6-acetylmorphine (6-AM), oxycodone, oxymorphone, cocaine, cocaethylene, benzoylecgonine, m-hydroxybenzoylecgonine, diazepam, oxazepam, temazepam, nordiazepam, chlordiazepoxide, lorazepam, alprazolam, alpha-hydroxyalprazolam, clonazepam, 7-aminoclonazepam, midazolam, alpha-hydroxymidazolam and zolpidem...
November 22, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27881621/unusual-case-of-drug-facilitated-sexual-assault-using-chloroform
#13
Camille Richeval, Delphine Allorge, Vincent Lopez, Baptiste Boyer, Jean-Michel Gaulier
Despite its well-known sedative properties, chloroform is rarely used for drug-facilitated sexual assault (DFSA) as its administration cannot be achieved without the victim's knowledge: we report an unusual case of DFSA using this solvent. A 26-year-old woman declared that her partner get her to sleep using chloroform the previous night. When she waked up at 3 am, her hands were tied. She immediately suspected violence and sexual penetration. Toxicological blood screening using a liquid chromatography-electrospray coupled tandem mass spectrometry method highlighted the presence of bamifylline and theophylline, two therapeutics of asthma...
November 22, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27881620/catching-fakes-new-markers-of-urine-sample-validity-and-invalidity
#14
Melissa M Goggin, Cheng-Min Tann, Anna Miller, An Nguyen, Gregory C Janis
Urine drug testing is common for workplace drug testing, prescription management, emergency medicine and the criminal justice system. Unsurprisingly, with the significant consequences based upon the results of urine drug testing, a donor in need of concealing the contents of their sample is highly motivated to cheat the process. Procedures and safeguards ensuring sample validity are well known, and include measuring sample temperature at the time of collection, and laboratory measurements of creatinine, specific gravity and pH...
November 22, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27881619/accumulation-and-determination-of-phenylethanolamine-a-residue-in-hair-of-swine-and-sheep
#15
Suo Decheng, Wang Ruiguo, Wang Peilong, Zhao Genlong, Fan Yufei, Fan Xia, Li Yang, Su Xiaoou
The present study proposed the use of liquid chromatography-tandem mass spectrometry to detect the novel β-agonist phenylethanolamine A (PEA) in incurred hair samples of swine and sheep and to assess its accumulation for residue monitoring. The method showed good percent recoveries ranging from 93.2% to 102% and good coefficient of variation at <15%. The experiment was conducted in swine (24 treated and 4 controls) and sheep (3 treated and 1 control). PEA concentration was determined in hair during the treatment...
November 22, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27881618/simultaneous-screening-and-quantification-of-basic-neutral-and-acidic-drugs-in-blood-using-uplc-qtof-ms
#16
Sergei Bidny, Kim Gago, Phuong Chung, Desdemona Albertyn, Daniel Pasin
An analytical method using ultra performance liquid chromatography (UPLC) quadrupole time-of-flight mass spectrometry (QTOF-MS) was developed and validated for the targeted toxicological screening and quantification of commonly used pharmaceuticals and drugs of abuse in postmortem blood using 100 µL sample. It screens for more than 185 drugs and metabolites and quantifies more than 90 drugs. The selected compounds include classes of pharmaceuticals and drugs of abuse such as: antidepressants, antipsychotics, analgesics (including narcotic analgesics), anti-inflammatory drugs, benzodiazepines, beta-blockers, amphetamines, new psychoactive substances (NPS), cocaine and metabolites...
November 22, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27650310/an-acute-ocfentanil-fatality-a-case-report-with-postmortem-concentrations
#17
F E Dussy, S Hangartner, C Hamberg, C Berchtold, U Scherer, G Schlotterbeck, D Wyler, T A Briellmann
A 24-year-old man known to consume illegal drugs was found dead in his apartment. A reclosable plastic zipper bag containing several hundred milligrams of a brown powder was found close to the dead body and the first assumption of the investigators was death due to heroin intoxication. Therefore, a legal autopsy was ordered. The following toxicological analysis revealed ocfentanil in urine and in the brown powder. Four different approaches for the determination of the ocfentanil concentrations in peripheral whole blood are described...
November 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27624696/evaluating-oral-fluid-as-a-screening-tool-for-lead-poisoning
#18
Sher Lynn Gardner, Robert J Geller, Robyn Hannigan, Yu Sun, Anil Mangla
CONTEXT: Screening for lead poisoning is necessary in young children, but obtaining the needed blood sample is unpleasant and sometimes very difficult. Use of an alternative screening method that is less unpleasant and less difficult would likely help to increase the percent of children receiving screening. OBJECTIVES: To evaluate the correlation of oral fluid and blood lead in a clinical setting, and to ascertain the acceptability and feasibility of obtaining oral fluid from a young child in the clinical setting...
November 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27624695/letter-to-the-editor-concerning-the-letter-gerostamoulos-d-elliott-s-walls-h-c-peters-f-t-lynch-m-drummer-o-h-2016-to-measure-or-not-to-measure-that-is-the-nps-question-journal-of-analytical-toxicology-40-318-320
#19
LETTER
https://www.readbyqxmd.com/read/27590036/analysis-of-novel-synthetic-opioids-u-47700-u-50488-and-furanyl-fentanyl-by-lc-ms-ms-in-postmortem-casework
#20
Amanda L A Mohr, Melissa Friscia, Donna Papsun, Sherri L Kacinko, David Buzby, Barry K Logan
Following series of synthetic cannabinoid and synthetic cathinone derivatives, the illicit drug market has begun to see increased incidence of synthetic opioids including fentanyl and its derivatives, and other chemically unrelated opioid agonists including AH-7921 and MT-45. Among the most frequently encountered compounds in postmortem casework have been furanyl fentanyl (N-(1-(2-phenylethyl)-4-piperidinyl)-N-phenylfuran-2-carboxamide, Fu-F) and U-47700 (trans-3,4-dichloro-N-(2-(dimethylamino)cyclohexyl)-N-methylbenzamide)...
November 2016: Journal of Analytical Toxicology
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