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Urine drug testing

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https://www.readbyqxmd.com/read/28822347/screening-and-confirmation-of-steroids-and-nitroimidazoles-in-urine-blood-and-food-matrices-sample-preparation-methods-and-liquid-chromatography-tandem-mass-spectrometric-separations
#1
Ádám Tölgyesi, Enikő Barta, Andrea Simon, Thomas J McDonald, Virender K Sharma
Veterinary drugs containing synthetic anabolic steroid and nitroimidazole active agents are not allowed for their applications in livestock of the European Union (EU). This paper presents analyses of twelve selected steroids and six nitroimidazole antibiotics at low levels (1.56μg/L-4.95μg/L and 0.17μg/kg-2.14μg/kg, respectively) in body fluids and egg incurred samples. Analyses involved clean-up procedures, high performance liquid chromatography (HPLC) separation, and tandem mass spectrometric screening and confirmatory methods...
August 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28815938/optimization-of-recombinant-%C3%AE-glucuronidase-hydrolysis-and-quantification-of-eight-urinary-cannabinoids-and-metabolites-by-liquid-chromatography-tandem-mass-spectrometry
#2
Cristina Sempio, Karl B Scheidweiler, Allan J Barnes, Marilyn A Huestis
Prolonged urinary cannabinoid excretion in chronic frequent cannabis users confounds identification of recent cannabis intake that may be important in treatment, workplace, clinical, and forensic testing programs. In addition, differentiation of synthetic Δ9-tetrahydrocannabinol (THC) intake from cannabis plant products might be an important interpretive issue. THC, 11-hydroxy-THC (11-OH-THC) and 11-nor-9-carboxy-THC (THCCOOH) urine concentrations were evaluated during previous controlled cannabis administration studies following tandem alkaline/E...
June 14, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28815876/a-treatment-development-study-of-a-cognitive-and-mindfulness-based-therapy-for-adolescents-with-co-occurring-post-traumatic-stress-and-substance-use-disorder
#3
Lisa R Fortuna, Michelle V Porche, Auralyd Padilla
OBJECTIVE: Substance use is common among adolescents with post-traumatic stress disorder (PTSD). We aimed to develop and study an integrated treatment for adolescents with co-occurring disorders. DESIGN: This is a therapy development and open pilot trial study of a manualized therapy for adolescents with post-traumatic stress, depression, and substance use that uses a combination of cognitive therapy (CT) and mindfulness. METHODS: Descriptive statistics and paired sample t-tests were calculated to assess for changes in PTSD symptoms, depression, and substance use frequency from baseline to end of treatment using standardized measures and validated by urine drug screens...
August 16, 2017: Psychology and Psychotherapy
https://www.readbyqxmd.com/read/28815274/a-new-metabolomics-based-strategy-for-identification-of-endogenous-markers-of-urine-adulteration-attempts-exemplified-for-potassium-nitrite
#4
Andrea E Steuer, Kim Arnold, Tom D Schneider, Michael Poetzsch, Thomas Kraemer
Urine adulteration to circumvent positive drug testing represents a problem for toxicological laboratories. While creatinine is a suitable marker for dilution, detection of chemicals is often performed by dipstick tests associated with high rates of false positives. Several methods would be necessary to check for all possible adulterants. Untargeted mass spectrometry (MS) methods used in metabolomics should theoretically allow detecting concentration changes of any endogenous urinary metabolite or presence of new biomarkers produced by chemical adulteration...
August 16, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28814125/recreational-drug-use-at-a-major-music-festival-trend-analysis-of-anonymised-pooled-urine
#5
Lotte Christine Groth Hoegberg, Cecilie Christiansen, Jesper Soe, Rasmus Telving, Mette Findal Andreasen, Dan Staerk, Lona Louring Christrup, Kenneth Thermann Kongstad
OBJECTIVE: The spread of new psychoactive substances (NPS) has expanded rapidly in the last decade. The complexity of the pharmacological effects of NPS challenges the traditional treatment guidelines, and information of the emergence of new arrivals is valuable. Our knowledge on the actual range of recreational drugs used and NPS available in Denmark is limited as identification is possible only when consumers become patients in the healthcare system or through drug seizures. We aimed to detect classical recreational drugs and NPS in the urine of music festival attendees and evaluate if the use of NPS could have been predicted by comparing study data with drug seizure data from the previous year published by European and Danish health authorities...
August 17, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28813207/examination-of-synthetic-cannabinoid-and-cathinone-use-among-a-drug-using-offender-sample-2013-2015
#6
Kirsten Elin Smith, Amanda M Bunting, Michele Staton, Robert Walker, Sara Shalash, Erin Winston, Kevin Pangburn
Use of novel psychoactive substances (NPS) such as synthetic cannabinoids (e.g., "Spice," "Serenity") and cathinones (e.g., "bath salts") has proliferated in recent years; however, there is a gap in research examining prevalence among offender samples. This study examined demographics, drug use, mental health characteristics, and criminal histories of NPS users compared to non-NPS users within an offender sample entering drug treatment. Using logistic regression analysis, combined 2013-2015 assessment data were examined (N = 8,791)...
August 16, 2017: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/28810899/chronic-pain-and-opioid-misuse-a-review-of-reviews
#7
REVIEW
Pauline Voon, Mohammad Karamouzian, Thomas Kerr
OBJECTIVE: The crisis of prescription opioid (PO) related harms has focused attention toward identifying and treating high-risk populations. This review aims to synthesize systematic reviews on the epidemiology and clinical management of comorbid chronic pain and PO or other substance misuse. METHODS: A systematic database search was conducted to identify systematic reviews published between 2000 and 2016. Eligible studies were systematic reviews related to chronic non-cancer pain and PO or other substance misuse...
August 15, 2017: Substance Abuse Treatment, Prevention, and Policy
https://www.readbyqxmd.com/read/28807541/urinary-rna-based-biomarkers-for-prostate-cancer-detection
#8
REVIEW
Filippo Martignano, Lorena Rossi, Antonio Maugeri, Valentina Gallà, Vincenza Conteduca, Ugo De Giorgi, Valentina Casadio, Giuseppe Schepisi
Prostate cancer (PCa) is the commonest malignancy in the male population worldwide. Serum prostate specific antigen (PSA) test is the most important biomarker for the detection, follow-up and therapeutic monitoring of PCa. Defects in PSA specificity have elicited research for new biomarkers to improve early diagnosis and avoid false-positive results. This review evaluates urinary RNA-based biomarkers. Urine is a versatile body fluid for non-invasive biomarker detection in case of urological malignancies. The importance of RNA-based biomarkers has been demonstrated by the current use of PCA3, a long non coding RNA biomarker already approved by the Food and Drugs Administration...
August 11, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28806822/-multiple-myeloma-current-status-in-diagnostic-testing-and-therapy
#9
Michael Kehrer, Sebastian Koob, Andreas Strauss, Dieter Christian Wirtz, Jan Schmolders
Background Multiple myeloma is a haematological blood cancer of the bone marrow and is classified by the World Health Organisation (WHO) as a plasma cell neoplasm. In multiple myeloma, normal plasma cells transform into malignant myeloma cells and produce large quantities of an abnormal immunoglobulin called monoclonal protein or M protein. This ultimately causes multiple myeloma symptoms such as bone damage or kidney problems. The annual worldwide incidence of multiple myeloma is estimated to be 6 - 7/100,000 and accounts for 1% of all cancer...
August 14, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28803722/advantages-of-analyzing-postmortem-brain-samples-in-routine-forensic-drug-screening-case-series-of-three-non-natural-deaths-tested-positive-for-lysergic-acid-diethylamide-lsd
#10
Marie Mardal, Sys Stybe Johansen, Ragnar Thomsen, Kristian Linnet
Three case reports are presented, including autopsy findings and toxicological screening results, which were tested positive for the potent hallucinogenic drug lysergic acid diethylamide (LSD). LSD and its main metabolites were quantified in brain tissue and femoral blood, and furthermore hematoma and urine when available. LSD, its main metabolite 2-oxo-3-hydroxy-LSD (oxo-HO-LSD), and iso-LSD were quantified in biological samples according to a previously published procedure involving liquid-liquid extraction and ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS)...
July 30, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28780309/clinical-and-microbiological-characteristics-of-pantoea-agglomerans-infection-in-children
#11
Ayşe Büyükcam, Özlem Tuncer, Deniz Gür, Banu Sancak, Mehmet Ceyhan, Ali Bülent Cengiz, Ateş Kara
Pantoea agglomerans is an environmental Gram-negative bacterium that rarely is responsible for the infections in humans but it is often a causative factor of a number of occupational diseases. This study evaluated the clinical and microbiological characteristics and pathogenicity of P. agglomerans in children. We retrospectively reviewed microbiological test results for all children (1 month old to 18 years old) who were admitted to our pediatric hospital between January 2000 to June 2015 and had positive clinical specimen cultures for P...
August 2, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28777732/body-image-and-eating-disorders-are-common-among-professional-and-amateur-athletes-using-performance-and-image-enhancing-drugs-a-cross-sectional-study
#12
Daria Piacentino, Georgios D Kotzalidis, Livia Longo, Antonio Pavan, Luciano Stivali, Guido Stivali, Stefano Ferracuti, Roberto Brugnoli, Paola Frati, Vittorio Fineschi, Paolo Girardi, Gabriele Sani
The use of performance and image enhancing drugs (PIEDs) is not uncommon in athletes and appears to be associated with several psychopathological disorders of unclear prevalence. In this multicenter, cross-sectional study, we aimed to evaluate the prevalence of body image disorders (BIDs) and eating disorders (EDs) in PIED-using athletes vs. PIED nonusers. We enrolled 84 consecutive professional and amateur athletes training in sport centers in Italy, who underwent semi-structured interviews (SCID-I, SCID-II) and completed the Body Image Concern Inventory (BICI) and the Sick, Control, One, Fat, Food Eating Disorder Screening Test (SCOFF)...
August 4, 2017: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/28771321/activity-based-detection-of-consumption-of-synthetic-cannabinoids-in-authentic-urine-samples-using-a-stable-cannabinoid-reporter-system
#13
Annelies Cannaert, Florian Franz, Volker Auwärter, Christophe P Stove
Synthetic cannabinoids (SCs) continue to be the largest group of new psychoactive substances (NPS) monitored by the European Monitoring Center of Drugs and Drugs of Abuse (EMCDDA). The identification and subsequent prohibition of single SCs has driven clandestine chemists to produce analogues of increasing structural diversity, intended to evade legislation. That structural diversity, combined with the mostly unknown metabolic profiles of these new SCs, poses a big challenge for the conventional targeted analytical assays, as it is difficult to screen for 'unknown' compounds...
August 3, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28770534/antidepressant-induced-acute-liver-injury-a-case-control-study-in-an-italian-inpatient-population
#14
Carmen Ferrajolo, Cristina Scavone, Monia Donati, Oscar Bortolami, Giovanna Stoppa, Domenico Motola, Alfredo Vannacci, Alessandro Mugelli, Roberto Leone, Annalisa Capuano
INTRODUCTION: Pre-marketing clinical trials show that antidepressant-induced liver injury seems to be a rare adverse event. Because of short follow-up trial duration, the incidence of liver injury due to antidepressant use could be underestimated. OBJECTIVES: We aimed to quantify the risk of acute liver injury associated with antidepressant use through a case-control analysis among an inpatient population. METHODS: A multicenter study was carried out in nine Italian hospitals from October 2010 to January 2014, within the DILI-IT (Drug-Induced Liver Injury in Italy) study project...
August 2, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28764160/revisiting-nitrofurantoin-for-vancomycin-resistant-enterococci
#15
Suneeta Meena, Sarita Mohapatra, Seema Sood, Benu Dhawan, Bimal Ku Das, Arti Kapil
INTRODUCTION: Enterococcal infection has emerged as a major therapeutic challenge. Emergence of High Level Aminoglycoside Resistance (HLAR) and Vancomycin-Resistant Enterococcus (VRE) has further limited the drug therapy in enterococcal infections. However, nitrofuratoin being an old drug reported to have less resistance in comparison to the other classes of antimicrobial agents. AIM: To detect susceptibility of nitrofurantoin against VRE isolates from Urinary Tract Infection (UTI) of outdoor and indoor patient departments...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28762672/safety-efficacy-and-persistence-of-long-term-mirabegron-treatment-for-overactive-bladder-in-the-daily-clinical-setting-interim-1-year-report-from-a-japanese-post-marketing-surveillance-study
#16
Daisuke Kato, Hiromi Tabuchi, Satoshi Uno
OBJECTIVES: To report interim 1-year results from a 3-year surveillance study evaluating safety, efficacy, and persistence of long-term mirabegron for overactive bladder (OAB). METHODS: Patients starting treatment with mirabegron for urinary urgency, daytime frequency, and urgency incontinence associated with OAB were registered and followed up for 3 years. Data were collected on adverse drug reactions (ADR), changes in OAB symptoms, changes in Overactive Bladder Symptom Score (OABSS), and treatment discontinuations...
August 1, 2017: Lower Urinary Tract Symptoms
https://www.readbyqxmd.com/read/28762471/clinical-presentation-of-terbinafine-induced-severe-liver-injury-and-the-value-of-laboratory-monitoring-a-critically-appraised-topic
#17
REVIEW
O N Kramer, J Albrecht
CONTEXT: Many physicians monitor liver function tests during terbinafine therapy. OBJECTIVE: Evaluate the symptoms of published cases of terbinafine associated severe DILI (Drug Induced Liver Injury) to assess the utility of laboratory monitoring. DATA SOURCES: We based our search on the Liver Tox database of the National Institute of Health, but searched PUBMED as well as EMBASE. In addition, we hand-searched the references of the papers we found...
August 1, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28756170/confirmation-of-metabolites-of-the-neuroleptic-drug-prothipendyl-using-human-liver-microsomes-specific-cyp-enzymes-and-authentic-forensic-samples-benefit-for-routine-drug-testing
#18
M Krämer, S Broecker, B Madea, C Hess
Metabolism of the tricyclic azaphenothiazine neuroleptic drug prothipendyl was investigated with in vitro studies using human liver microsomes but also specific isoforms of cytochrome P450 (CYP) enzymes. Identification and analysis of metabolites was done by liquid chromatography (LC) coupled with quadrupole time of flight mass spectrometry (LC-QTOF-MS) as well as triple quadrupole mass spectrometry (LC-QQQ-MS). Results of the herein presented study revealed the proof of various demethylated and oxidized metabolites (-CH2, -C2H4, four derivatives of prothipendyl +O and three derivatives of prothipendyl -CH2+O)...
July 12, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28755555/determination-of-endogenous-and-exogenous-corticosteroids-in-bovine-urine-and-effect-of-fighting-stress-during-the-batailles-des-reines-on-their-biosynthesis
#19
Marta Leporati, Maria Nobile, Pierluigi Capra, Eugenio Alladio, Marco Vincenti
Natural corticosteroids include two families of substances: mineralocorticoids and glucocorticoids. Several drugs of similar structure and biological activity have been synthesized and are currently used in the clinical practice. Beside legal pharmacological treatments, these drugs have been consistently misused in animal breeding. One of the most abused corticosteroids is prednisolone. For many years, prednisolone has been considered of exclusive synthetic origin, but nowadays a debate about its possible endogenous production is under way...
July 4, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28755512/power-of-orbitrap-based-lc-high-resolution-ms-ms-for-comprehensive-drug-testing-in-urine-with-or-without-conjugate-cleavage-or-using-dried-urine-spots-after-on-spot-cleavage-in-comparison-to-established-lc-ms-n-or-gc-ms-procedures
#20
Julian A Michely, Markus R Meyer, Hans H Maurer
Reliable, sensitive, and comprehensive urine screening procedures by GC-MS or LC-MS with low or high resolution (HR) are of high importance for drug testing, adherence monitoring, or detection of toxic compounds. Besides conventional urine sampling, dried urine spots are of increasing interest. In the present study, the power of LC-HR-MS/MS was investigated for comprehensive drug testing in urine with or without conjugate cleavage or using dried urine spots after on-spot cleavage in comparison to established LC-MS(n) or GC-MS procedures...
July 29, 2017: Drug Testing and Analysis
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