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Ethyl glucuronide

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https://www.readbyqxmd.com/read/29161228/homelessness-predicts-attrition-but-not-alcohol-abstinence-in-outpatients-experiencing-co-occurring-alcohol-dependence-and-serious-mental-illness
#1
Emily Leickly, Jordan Skalisky, Oladunni Oluwoye, Sterling M McPherson, Debra Srebnik, John M Roll, Richard K Ries, Michael G McDonell
BACKGROUND: Adults experiencing homelessness and serious mental illnesses (SMI) are at an increased risk for poor mental health and treatment outcomes compared to stably housed adults with SMI. The additional problem of alcohol misuse further complicates the difficulties of those living with homelessness and SMI. In this secondary data analysis, we investigated the impact of homelessness on attrition and alcohol use in a contingency management (CM) intervention that rewarded alcohol abstinence in outpatients with SMI...
November 21, 2017: Substance Abuse
https://www.readbyqxmd.com/read/29127890/the-role-of-ethyl-glucuronide-in-supporting-medico-legal-investigations-analysis-of-this-biomarker-in-different-postmortem-specimens-from-21-selected-autopsy-cases
#2
Anna Laura Santunione, Patrizia Verri, Filippo Marchesi, Cecilia Rustichelli, Federica Palazzoli, Daniele Vandelli, Manuela Licata, Enrico Silingardi
Ethanol determination in postmortem blood is one of the most frequently requested analyses in legal medicine and forensic toxicology. Ethyl glucuronide is a non-oxidative ethanol metabolite. It is also a useful marker of ante-mortem alcohol ingestion when ethanol itself has been completely eliminated from the body and could be considered in autopsy cases to obtain more reliable indications. The aim of the present study was to investigate the ethyl glucuronide distribution in postmortem specimens from autopsy cases found to be positive for ethanol...
November 1, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29101909/lessons-learned-from-a-case-of-tert-butyl-glucuronide-excretion-in-urine-new-psychoactive-alcohols-knocking-on-the-back-door
#3
Torsten Arndt, Hubert C Buschmann, Katja Schulz, Karsten Stemmerich
BACKGROUND: Ethyl glucuronide (EtG) in urine is considered a marker of recent ethanol consumption or ethanol exposition. tert-Butanol is primarily used as a solvent and intermediate chemical. Like tert-amyl alcohol, tert-butanol is discussed in Internet forums as ethanol replacement. We discuss false-positive immunological EtG screenings by excretion of different alcohol glucuronides (EtG homologs), mainly tert-butyl glucuronide in urine of a polytoxikomanic in-patient. METHODS: Three consecutive urine samples from an in-patient with a long history of multiple substance abuse including solvents were analyzed by DRI EtG enzyme immunoassay (ThermoFisher Scientific Microgenics) on a Beckman Coulter AU680 analyzer, an in-house LC-MS/MS for EtG, 1-propyl, 2-propyl, 1-butyl, 2-butyl, and tert-butyl glucuronide, and an in-house headspace GC-FID of free congener substances methanol, 1-propanol, 2-butanone, 2-butanol, isobutanol, 1-butanol, 3-methyl-1-butanol, 2-methyl-1-butanol, and additionally for ethanol, acetone, 2-propanol, tert-butanol and 2-methyl-2-butanol...
October 18, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29042582/portable-biosensor-for-monitoring-cortisol-in-low-volume-perspired-human-sweat
#4
David Kinnamon, Ramesh Ghanta, Kai-Chun Lin, Sriram Muthukumar, Shalini Prasad
A non-faradaic label-free cortisol biosensor was demonstrated using MoS2 nanosheets integrated into a nanoporous flexible electrode system. Low volume (1-5 μL) sensing was achieved through use of a novel sensor stack design comprised of vertically aligned metal electrodes confining semi-conductive MoS2 nanosheets. The MoS2 nanosheets were surface functionalized with cortisol antibodies towards developing an affinity biosensor specific to the physiological relevant range of cortisol (8.16 to 141.7 ng/mL) in perspired human sweat...
October 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28992662/sample-preparation-method-for-the-combined-extraction-of-ethyl-glucuronide-and-drugs-of-abuse-in-hair
#5
Ulf Christian Juhl Meier, Thomas Briellmann, Eva Scheurer, Franz Dussy
In hair analysis often little hair sample is available while the analysis of a multitude of structurally diverse substances with different concentration ranges is demanded. Often, the analysis of the different substances requires different sample preparation methods, increasing the amount of required hair sample. When segmental hair analysis is necessary, the amount of needed hair sample is further increased. Therefore, the required sample amount for a full analysis can quickly exceed the available hair sample...
October 9, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28982313/biomarkers-of-alcohol-consumption-in-body-fluids-possibilities-and-limitations-of-application-in-toxicological-analysis
#6
Mateusz K Woźniak, Marek Wiergowski, Jacek Namieśnik, Marek Biziuk
Ethyl alcohol is the most popular legal drug, but its excessive consumption causes social problems. Despite many public campaigns against alcohol use, car accidents, instances of aggressive behaviour, sexual assaults and deterioration in labor productivity caused by inebriated people is still commonplace. Fast and easy diagnosis of alcohol consumption is required in order to introduce proper and effective therapy, and is crucial in forensic toxicology analysis. The easiest method to prove alcohol intake is determination of ethanol in body fluids or in breath...
October 5, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28954578/portable-chronic-alcohol-consumption-monitor-in-human-sweat-through-square-wave-voltammetry
#7
David Kinnamon, Sriram Muthukumar, Anjan Panneer Selvam, Shalini Prasad
Chronic alcohol consumption is a significant financial and physical burden in the United States each year. Alcohol consumption monitors focus on establishing a state of intoxication, not assessing a user's health risks as a function of consumed alcohol. This work demonstrates a biosensor for a chronic alcohol consumption monitor through the electrochemical detection of ethyl glucuronide (EtG) in human sweat using square-wave voltammetry (SWV). A novel affinity assay was demonstrated in which monoclonal antibodies were chemically coabsorbed onto a gold electrode surface in parallel with thiolated charge transfer molecule...
September 1, 2017: SLAS Technology
https://www.readbyqxmd.com/read/28938866/the-interpretation-of-hair-analysis-for-drugs-and-drug-metabolites
#8
Eva Cuypers, Robert J Flanagan
INTRODUCTION: Head hair analysis for drugs and drug metabolites has been used widely with the aim of detecting exposure in the weeks or months prior to sample collection. However, inappropriate interpretation of results has likely led to serious miscarriages of justice, especially in child custody cases. OBJECTIVE: The aim of this review is to assess critically what can, and perhaps more importantly, what cannot be claimed as regards the interpretation of hair test results in a given set of circumstances in order to inform future testing...
September 22, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28892761/ethyl-glucuronide-in-keratinous-matrices-as-biomarker-of-alcohol-use-a-correlation-study-between-hair-and-nails
#9
Delphine Cappelle, Hugo Neels, Steven De Keukeleire, Erik Fransen, Geert Dom, Annemie Vermassen, Adrian Covaci, Cleo L Crunelle, Alexander L N van Nuijs
To quantify alcohol use, objective, specific and sensitive long-term alcohol markers are necessary. Ethyl glucuronide (EtG), a direct metabolite of alcohol, accumulates in keratinous matrices such as hair and nails, and is a specific and sensitive long-term biomarker for the detection of chronic alcohol consumption. So far, research has primarily focused on the detection of EtG in hair, and studies on its measurement in nails are scarce. In this article, we assessed EtG concentrations in hair, finger- and toenails from the same individuals in order to evaluate the direct correlation between the matrices...
October 2017: Forensic Science International
https://www.readbyqxmd.com/read/28892122/effects-of-prenatal-alcohol-consumption-on-cognitive-development-and-adhd-related-behaviour-in-primary-school-age-a-multilevel-study-based-on-meconium-ethyl-glucuronide
#10
Anna Eichler, Linda Hudler, Juliane Grunitz, Jennifer Grimm, Eva Raabe, Tamme W Goecke, Peter A Fasching, Matthias W Beckmann, Oliver Kratz, Gunther H Moll, Johannes Kornhuber, Hartmut Heinrich
BACKGROUND: Alcohol intake during pregnancy is considered to be a risk factor for child development. Child biomarkers of intrauterine alcohol exposure have been rarely studied. We investigated whether a meconium alcohol metabolite (ethyl glucuronide, EtG) was associated with cognitive development, ADHD-related behaviour and neurophysiological markers of attention and executive control of children at primary-school age. METHODS: Mothers provided self-report on prenatal alcohol consumption during their 3rd trimester...
September 11, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28856820/decrease-of-ethyl-glucuronide-concentrations-in-hair-after-exposure-to-chlorinated-swimming-pool-water
#11
Marc Luginbühl, Susanne Nussbaumer, Wolfgang Weinmann
The direct alcohol marker ethyl glucuronide (EtG) is widely used for the assessment of alcohol consumption behavior and abstinence monitoring by hair analysis. We investigated the influence of chlorinated swimming pool water on EtG concentrations in hair in comparison to deionized water (Milli-Q) containing no chlorine. EtG concentrations were measured with a validated online-SPE-LC-MS/MS method. EtG positive hair samples were obtained from three regular drinkers and incubated for 0, 2, 4, 6, 8, and 10 hours at room temperature...
August 30, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28852244/value-of-ethyl-glucuronide-and-ethyl-sulfate-in-serum-as-biomarkers-of-alcohol-consumption
#12
Lekhansh Shukla, Priyamvada Sharma, Suhas Ganesha, Deepak Ghadigaonkar, Evan Thomas, Arun Kandasamy, Pratima Murthy, Vivek Benegal
BACKGROUND: Urinary Ethyl glucuronide (EtG) and Ethyl sulfate (EtS) are established markers of alcohol conumption. Measurement of these markers in serum offers certain advantages. This outpatient department based study evaluated performance of serum Ethyl glucuronide (EtG) and Ethyl sulphate (EtS) as biomarkers of recent alcohol consumption in alcohol dependent subjects. It also evaluated effect of alcohol dose and time since consumption on serum EtG and EtS concentration. METHODS: Information regarding alcohol intake was collected using Time line follow back calendar method from 152 subjects...
July 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/28833832/pretreatment-ethyl-glucuronide-levels-predict-response-to-a-contingency-management-intervention-for-alcohol-use-disorders-among-adults-with-serious-mental-illness
#13
Michael Gerard McDonell, Emily Leickly, Sterling McPherson, Jordan Skalisky, Katherine Hirchak, Oladunni Oluwoye, Debra Srebnik, John Michael Roll, Richard Kirkland Ries
BACKGROUND AND OBJECTIVES: This study investigated if pretreatment ethyl glucuronide (EtG) levels corresponding to light (100 ng/mL), heavy (500 ng/mL), and very heavy (1,000 ng/mL) drinking predicted longest duration of alcohol abstinence (LDA) and proportion of EtG-negative urine tests in outpatients receiving a 12-week EtG-based contingency management (CM) intervention for alcohol dependence. METHODS: Participants were 40 adults diagnosed with alcohol use disorders and serious mental illness who submitted up to 12 urine samples for EtG analysis during a 4-week observation period and were then randomized to 12-weeks of CM for alcohol abstinence and addiction treatment attendance...
October 2017: American Journal on Addictions
https://www.readbyqxmd.com/read/28832233/bioactivity-guided-isolation-and-identification-of-anti-adipogenic-compounds-from-sanguisorba-officinalis
#14
Sun Hyuk Im, Zhiqiang Wang, Soon Sung Lim, Ok-Hwan Lee, Il-Jun Kang
CONTEXT: Sanguisorba officinalis Linne (Rosaceae) is a medicinal plant used traditionally for the treatment of inflammatory and metabolic diseases in Korea, China, and Japan. In our previous study, a 50% ethanol extract inhibited fat accumulation in 3T3-L1 adipocytes. OBJECTIVE: This study investigates bioassay-guided fractionation, isolation, and identification of anti-adipogenic bioactive compounds in S. officinalis. MATERIALS AND METHODS: The bioassay-guided fractionation was conducted using effective differentiation of 3T3-L1 cells into adipocytes (with 50 μg/mL test material for 8 days) to isolate the inhibitory compounds from ethyl acetate fraction of S...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28830836/ethyl-glucuronide-in-hair-is-an-accurate-biomarker-of-chronic-excessive-alcohol-use-in-patients-with-alcoholic-cirrhosis
#15
Jef Verbeek, Cleo L Crunelle, Gil Leurquin-Sterk, Peter P Michielsen, Mireille De Doncker, Diethard Monbaliu, Jacques Pirenne, Tania Roskams, Schalk van der Merwe, David Cassiman, Hugo Neels, Frederik Nevens
No abstract text is available yet for this article.
August 19, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28802209/commentary-on-current-changes-of-the-soht-2016-consensus-on-alcohol-markers-in-hair-and-further-background-information
#16
Fritz Pragst, Silke Suesse, Alberto Salomone, Marco Vincenti, Vincent Cirimele, Jayne Hazon, Lolita Tsanaclis, Robert Kingston, Frank Sporkert, Markus R Baumgartner
The consensus on alcohol markers in hair was revised for the fourth time by an expert group of the Society of Hair Testing based on current state of research. This revision was adopted by the members of the Society during the business meeting in Brisbane on August 29th 2016. For both markers, ethyl glucuronide (EtG) and fatty acid ethyl esters (FAEEs), two cut-off values for discrimination between teetotalers or occasional low amount consumption and moderate alcohol drinking (low cut-off), and between non-excessive (abstinence up to moderate alcohol intake) and chronic excessive drinking (high cut-off value) were critically examined...
September 2017: Forensic Science International
https://www.readbyqxmd.com/read/28762065/lc-high-resolution-ms-ms-for-identification-of-69-metabolites-of-the-new-psychoactive-substance-1-4-ethylphenyl-n-2-methoxyphenyl-methyl-propane-2-amine-4-ea-nbome-in-rat-urine-and-human-liver-s9-incubates-and-comparison-of-its-screening-power-with-further
#17
Achim T Caspar, Folker Westphal, Markus R Meyer, Hans H Maurer
4-EA-NBOMe (N-(2-methoxybenzyl)-4-ethylamphetamine, 1-(4-ethylphenyl-)-N-[(2-methoxyphenyl)methyl]propane-2-amine) is an amphetamine-derived new psychoactive substance (NPS) of the N-methoxybenzyl (NBOMe) group first seized by German custom authorities. In contrast to the phenethylamine NBOMes, studies on the pharmacological, toxicological, or metabolic properties are not yet published. The aims of the presented work were the use of LC-HR-MS/MS for identification of the phase I and II metabolites of 4-EA-NBOMe in rat urine and pooled human S9 fraction (pS9) incubations, to compare metabolite formation in both models, to identify involved monooxygenases, and to elucidate its detectability in standard urine screening approaches (SUSAs) using GC-MS, LC-MS(n), and LC-HR-MS/MS...
July 31, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28728424/annals-express-false-negative-results-in-the-immunoassay-analysis-of-drugs-of-abuse-can-adulterants-be-detected-by-sample-check-test
#18
Barbara Matriciani, Bernd Huppertz, Ruprecht Keller, Ralf Weiskirchen
BACKGROUND: The dilution or adulteration of urine is a serious problem in drugs of abuse (DOA) testing. Tests to identify adulteration are currently available. This study investigated the ability of the CEDIA® sample check to detect adulteration. METHODS: Eight different DOAs were added to a urine sample obtained from a healthy, drug free subject: 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine, 3,4-methylenedioxyamphetamine, benzoylecgonine, D-amphetaminesulfate, ethyl-D-glucuronide, morphine sulfate, oxazepam, (-)-11-nor-9-carboxy-∆(9)-tetrahydrocannabinol...
January 1, 2017: Annals of Clinical Biochemistry
https://www.readbyqxmd.com/read/28719105/screening-for-hazardous-drinking-in-nursing-home-residents-evaluating-the-validity-of-the-current-cutoffs-of-the-alcohol-use-disorder-identification-test-consumption-questions-by-using-ethyl-glucuronide-in-hair
#19
Monika Dreher-Weber, Anton-Rupert Laireiter, Anton Kühberger, Isabella Kunz, Michel Yegles, Tina Binz, Hans-Jürgen Rumpf, Rainer Hoffmann, Verena Praxenthaler, Siegfried Lang, Friedrich M Wurst
BACKGROUND: Because of physiological changes, elderly people are much more exposed to the adverse effects of alcohol. Therefore, hazardous drinking is defined at lower levels as compared to younger adults. This work aimed to evaluate the validity of the current cutoff levels of the Alcohol Use Disorder Identification Test-Consumption (AUDIT-C) questions to detect hazardous drinking in the elderly by using ethyl glucuronide in hair (HEtG). METHODS: In a border region between Austria and Germany, 344 nursing home residents were included from 33 of the 107 nursing homes...
July 18, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28714726/pilot-investigation-of-a-phosphatidylethanol-based-contingency-management-intervention-targeting-alcohol-use
#20
Michael G McDonell, Jordan Skalisky, Emily Leickly, Michael F Orr, Sterling McPherson, John Roll, Nathalie Hill-Kapturczak, Martin Javors
Phosphatidylethanol (PEth) can be detected in blood from 14 to as many as 28 days after alcohol consumption, depending on the amount and frequency of alcohol consumed. PEth may have utility for verifying abstinence in a contingency management (CM) intervention for alcohol use, particularly in settings where frequent verification of abstinence is impossible or impractical. Five nontreatment-seeking heavy drinkers (40% men) participated in an 11-week, ABA-phased within-subject experiment for which they submitted blood spots for PEth measurement, urine samples for ethyl glucuronide (EtG) testing, and self-report drinking data weekly...
August 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
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