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Urine Drug screen

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https://www.readbyqxmd.com/read/28735050/antimicrobial-resistance-profiles-and-genotypes-of-extended-spectrum-%C3%AE-lactamase-and-ampc-%C3%AE-lactamase-producing-klebsiella-pneumoniae-isolated-from-dogs-in-beijing-china
#1
Yanhan Liu, Yonghui Yang, Yanyun Chen, Zhaofei Xia
OBJECTIVES: Klebsiella pneumoniae, which exists in the intestinal and respiratory tracts of humans and animals, is an important conditional pathogen in many animals. The aim of the current study was to investigate the antimicrobial resistance profiles and genotypes of extended-spectrum β-lactamase (ESBL) - and AmpC β-lactamase-producing K. pneumoniae isolated from dogs. METHODS: A total of 285 isolates, collected from fecal and urine samples of diseased dogs in a Veterinary Teaching Hospital in Beijing, were characterized by antimicrobial susceptibility testing and screened for ESBL and AmpC β-lactamase phenotypes...
July 19, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28734350/dried-urine-spots-a-novel-sampling-technique-for-comprehensive-lc-ms-n-drug-screening
#2
Julian A Michely, Markus R Meyer, Hans H Maurer
Dried matrix spot (DMS) technique as alternative sampling strategy, especially dried urine spots (DUS), might be an alternative for drug screening. So far only particular drugs or drug classes were covered in DMS screenings. Therefore, workup of DUS for a broad comprehensive library-based LC-MS(n) screening was developed. It consisted of enzymatic on-spot deconjugation followed by liquid extraction and LC-MS(n) analysis. This workup was compared to established urine precipitation (UP) and validated according to international guidelines for qualitative approaches, using exemplary compounds of several drug classes (antidepressants, benzodiazepines, cardiovascular drugs, neuroleptics, opioids, stimulants, etc...
August 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28733101/patterns-of-physician-prescribing-for-opioid-maintenance-treatment-in-ontario-canada-in-2014
#3
Qi Guan, Wayne Khuu, Sheryl Spithoff, Tara Kiran, Meldon Kahan, Mina Tadrous, Diana Martins, Pamela Leece, Tara Gomes
BACKGROUND: Despite concerns surrounding high patient volumes in methadone clinics, little is known about the practice patterns of opioid maintenance therapy (OMT) providers in Ontario. We examined the distribution of these services and how physician characteristics differ based on prescribing volume. METHODS: We conducted a cross-sectional study among prescribers of methadone or buprenorphine to Ontario public drug beneficiaries in 2014 by stratifying physicians into low- (lower 50%), moderate- (51-89%) and high-volume (top 10%) prescribers...
July 10, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28723256/quantitative-testing-of-buprenorphine-and-norbuprenorphine-to-identify-urine-sample-spiking-during-office-based-opioid-treatment
#4
Joji Suzuki, Jennifer Zinser, Mohammed Issa, Claudia Rodriguez
BACKGROUND: Patients may spike urine samples with buprenorphine during office-based opioid treatment to simulate adherence to prescribed buprenorphine, potentially to conceal diversion of medications. However, routine immunoassay screens do not detect instances of spiking, as these would simply result in a positive result. We report on our clinic's experience using quantitative urine testing for buprenorphine and norbuprenorphine to facilitate the identification of urine spiking. METHODS: This is a retrospective chart review of 168 consecutive patients enrolled in outpatient buprenorphine treatment at an urban academic medical setting between May 2013 and August 2014...
July 19, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28718268/oxymorphone-induced-thrombotic-microangiopathy-mimicking-atypical-haemolytic-uremic-syndrome
#5
Amibhen Gandhi, Saad Ullah, Shani Kotadia, Samer Nasser
Atypical Haemolytic Uremic Syndrome (aHUS) is a rare life threatening entity characterized by thrombocytopenia, haemolytic anaemia and renal dysfunction. It is a thrombotic microangiopathy related to genetic mutations in the alternate complement pathway and has a distinct pathophysiology which makes it harder to distinguish from other microangiopathies. We present a case of a 25-year-old male patient with history of polysubstance abuse who presented with chest pain and dyspnoea. He admitted to using injectable oxymorphone (Opana) two weeks before presentation...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28715206/high-throughput-screening-and-quantitation-of-target-compounds-in-biofluids-by-coated-blade-spray-mass-spectrometry
#6
Marcos Tascon, German Augusto Gómez-Ríos, Nathaly Reyes-Garcés, Justen J Poole, Ezel Boyaci, Janusz Pawliszyn
Most contemporary methods of screening and quantitating controlled substances and therapeutic drugs in biofluids typically require laborious, time-consuming, and expensive analytical workflows. In recent years, our group has worked towards developing microextraction (µe)-mass spectrometry (MS) technologies that merge all of the tedious steps of the classical methods into a simple, efficient, and low-cost methodology. Unquestionably, the automation of these technologies allows for faster sample throughput, greater reproducibility, and radically reduced analysis times...
July 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28715154/the-role-of-oxidative-stress-in-acute-renal-injury-of-newborn-rats-exposed-to-hypoxia-and-endotoxin
#7
Egor Y Plotnikov, Tatiana A Pavlenko, Irina B Pevzner, Ljubava D Zorova, Vasily N Manskikh, Denis N Silachev, Gennady T Sukhikh, Dmitry B Zorov
Neonatal kidney injury is a frequent pathology, especially among premature infants. The search for effective nephroprotection requires the creation of adequate experimental models of nephropathy in newborns. In this study, we explored the development of acute kidney injury (AKI) in neonatal rats during hypoxia or administration of endotoxin. We found that 2-h hypoxia (8% O2 ) and the intraperitoneal injection of 4 mg/kg lipopolysaccharide (LPS) causes the appearance of AKI markers, such as КIM-1 and NGAL in the rat urine after 24 and 72 h of exposure...
July 17, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28713441/analysis-of-raw-biofluids-by-mass-spectrometry-using-microfluidic-diffusion-based-separation
#8
Joshua Heinemann, Brigit Noon, Daniel Willems, Katherine Budeski, Brian Bothner
Elucidation and monitoring of biomarkers continues to expand because of their medical value and potential to reduce healthcare costs. For example, biomarkers are used extensively to track physiology associated with drug addiction, disease progression, aging, and industrial processes. While longitudinal analyses are of great value from a biological or healthcare perspective, the cost associated with replicate analyses is preventing the expansion of frequent routine testing. Frequent testing could deepen our understanding of disease emergence and aid adoption of personalized healthcare...
January 21, 2017: Analytical Methods: Advancing Methods and Applications
https://www.readbyqxmd.com/read/28710651/intoxication-caused-by-new-psychostimulants-analytical-methods-to-disclose-acute-and-chronic-use-of-benzofurans-and-ethylphenidate
#9
Bernardino Barceló, Isabel Gomila, Maria Concetta Rotolo, Emilia Marchei, Chrystalla Kyriakou, Simona Pichini, Carolina Roset, Miguel Ángel Elorza, Francesco Paolo Busardò
The acute and chronic toxicity of several new psychoactive substances (NPS) is unknown, and only little information is available on the pharmacology and toxicology, toxicokinetics, and detectability in body samples of such new compounds. We here propose analytical methods to disclose acute and chronic use of two types of new psychostimulants: benzofurans and ethylphenidate and we applied them to a real case of a subject attending Emergency Department with signs of acute intoxication due to psychotropic drug(s)...
July 15, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28706384/antimicrobial-susceptibility-risk-factors-and-prevalence-of-bla-cefotaximase-temoneira-and-sulfhydryl-variable-genes-among-escherichia-coli-in-community-acquired-pediatric-urinary-tract-infection
#10
Kallyadan V Nisha, Shetty A Veena, Shenoy D Rathika, Shenoy M Vijaya, Shetty K Avinash
INTRODUCTION: The emergence of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli has become an important challenge among pediatric patients with community-acquired urinary tract infection (UTI). OBJECTIVES: The aim of this study was to assess the antimicrobial susceptibility patterns, associated risk factors and to survey the frequency of bla cefotaximase (CTX-M), bla temoneira (TEM), and bla sulfhydryl variable (SHV) genotypes in ESBL-producing E...
July 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28705744/the-relationship-between-ocular-trauma-and-substance-abuse-in-emergency-department-patients
#11
Sylvia L Chang, Vaama Patel, John Giltner, Richard Lee, Catherine A Marco
INTRODUCTION: Eye injury is the second most common cause of visual impairment and a leading cause of monocular blindness in the United States. There are approximately 6 million ED visits related to drug use annually, including misuse or abuse of pharmaceuticals and illicit drug use. The purpose of this study was to assess the relationship between ocular trauma and substance abuse among emergency department patients and to assess that relationship with demographic factors, including age and gender...
July 8, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28700524/challenges-for-detecting-valproic-acid-in-a-nontargeted-urine-drug-screening-method
#12
Jeffrey D Pope, Marion J Black, Olaf H Drummer, Hans G Schneider
BACKGROUND: Valproic acid (VPA) is a widely prescribed medicine, and acute toxicity is possible. As such, it should be included in any nontargeted urine drug screening method. In many published liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS/MS) methods, VPA is usually measured using a pseudo-multiple reaction monitoring (MRM) transition. We investigate a simple ultra-high-performance liquid chromatography-quadrupole time-of-flight (QTof) approach to detect the presence of VPA with more confidence...
August 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28699773/variability-amongst-urine-toxicology-amphetamine-readings-with-concurrent-administration-of-fenofibrate
#13
Navin Dadlani, Anna Farrar, Graham Jones
OBJECTIVE: The aim of this study was to highlight that concurrent administration of the common lipid-lowering agent fenofibrate may lead to false-positive amphetamine results in often-used immunoassay-based urine drug screens. It also aimed to show that there are significant moral and clinical challenges associated with the interpretation of such results amongst psychiatric inpatients. CONCLUSIONS: It is evident that different pathology laboratories may utilise different commercial urine drug-screen immunoassays in their toxicology analysis, with variability in the test specificities...
July 1, 2017: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/28681615/self-identification-of-nonpharmaceutical-fentanyl-exposure-following-heroin-overdose
#14
Matthew K Griswold, Peter R Chai, Alex J Krotulski, Melissa Friscia, Brittany Chapman, Edward W Boyer, Barry K Logan, Kavita M Babu
OBJECTIVE: To compare user self-identification of nonpharmaceutical fentanyl exposure with confirmatory urine drug testing in emergency department (ED) patients presenting after heroin overdose. METHODS: This was a cross-sectional study of adult ED patients who presented after a heroin overdose requiring naloxone administration. Participants provided verbal consent after which they were asked a series of questions regarding their knowledge, attitudes and beliefs toward heroin and nonpharmaceutical fentanyl...
July 6, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28677880/study-of-the-in-vitro-and-in-vivo-metabolism-of-the-tryptamine-5-meo-mipt-using-human-liver-microsomes-and-real-case-samples
#15
Katharina Elisabeth Grafinger, Marianne Hädener, Stefan König, Wolfgang Weinmann
The synthetic tryptamine 5-methoxy-N-methyl-N-isopropyltryptamine (5-MeO-MiPT) has recently been abused as a hallucinogenic drug in Germany and Switzerland. This study presents a case of 5-MeO-MiPT intoxication and the structural elucidation of metabolites in pooled human liver microsomes (pHLM), blood, and urine. Microsomal incubation experiments were performed using pHLM to detect and identify in vitro metabolites. In August 2016, the police encountered a naked man, agitated and with aggressive behavior on the street...
July 5, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28666669/medical-treatment-of-nocturia-in-men-with-lower-urinary-tract-symptoms-systematic-review-by-the-european-association-of-urology-guidelines-panel-for-male-lower-urinary-tract-symptoms
#16
REVIEW
Vasileios I Sakalis, Markos Karavitakis, Dina Bedretdinova, Thorsten Bach, J L H Ruud Bosch, Mauro Gacci, Christian Gratzke, Thomas R Herrmann, Stephan Madersbacher, Charalampos Mamoulakis, Kari A O Tikkinen, Stavros Gravas, Marcus J Drake
CONTEXT: The treatment of nocturia is a key challenge due to the multi-factorial pathophysiology of the symptom and the disparate outcome measures used in research. OBJECTIVE: To assess and compare available therapy options for nocturia, in terms of symptom severity and quality of life. EVIDENCE ACQUISITION: Medical databases (Embase, Medline, Cochrane Systematic Reviews, Cochrane Central) were searched with no date restriction. Comparative studies were included which studied adult men with nocturia as the primary presentation and lower urinary tract symptoms including nocturia or nocturnal polyuria...
June 27, 2017: European Urology
https://www.readbyqxmd.com/read/28650900/a-high-throughput-hplc-ms-ms-assay-for-the-detection-quantification-and-simultaneous-structural-confirmation-of-136-drugs-and-metabolites-in-human-urine
#17
Jacek Klepacki, Baharak Davari, Marion Boulet, Ryan Lizarraga, Uwe Christians
BACKGROUND: Due to its superior sensitivity and specificity, multi-analyte high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC-MS/MS) has become the gold standard in clinical toxicology. Although several qualitative and quantitative LC-MS/MS assays on various mass spectrometry platforms have been described in the literature, the majority of these methods either analyze only a limited number of compounds, and/or require tedious and time-consuming sample preparation...
June 22, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28649510/targeted-screening-of-succinic-semialdehyde-dehydrogenase-deficiency-ssadhd-employing-an-enzymatic-assay-for-%C3%AE-hydroxybutyric-acid-ghb-in-biofluids
#18
C Wernli, S Finochiaro, C Volken, H Andresen-Streichert, A Buettler, D Gygax, G S Salomons, E E Jansen, G R Ainslie, K R Vogel, K M Gibson
HYPOTHESIS: An enzymatic assay for quantification of γ-hydroxybutyric acid (GHB) in biofluids can be employed for targeted screening of succinic semialdehyde dehydrogenase deficiency (SSADHD) in selected populations. RATIONALE: We used a two-tiered study approach, in which the first study (proof of concept) examined 7 urine samples derived from patients with SSADHD and 5 controls, and the second study (feasibility study) examined a broader sample population of patients and controls, including plasma...
June 2017: Molecular Genetics and Metabolism Reports
https://www.readbyqxmd.com/read/28648787/online-turbulent-flow-extraction-coupled-with-liquid-chromatography-tandem-mass-spectrometry-for-high-throughput-screening-of-anabolic-steroids-in-horse-urine
#19
Hyun Du Shin, Joon Hyuk Suh, Junghyun Kim, Hyun-Deok Cho, Su Duk Lee, Kwan Seok Han, Yu Wang, Sang Beom Han
A high throughput method for simultaneous screening of anabolic steroids and their metabolites (4-esterendione, trenbolone, boldenone, oxandrolone, nandrolone, methandrostenolone, testosterone, 1-androstendione, ethisterone, normethandrolone, methyltestosterone, 16β-Hydroxystanozolol, epitestosterone, bolasterone, norethandrolone, danazol, stanozolol and androstadienone) in equine urine by online turbulent flow extraction coupled with liquid chromatography-tandem mass spectrometry was developed. The use of turbulent flow chromatography could simplify pretreatment of horse urine, which has complex matrices as well as high viscosity...
June 19, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28646926/high-burden-of-schistosoma-mansoni-infection-in-school-aged-children-in-marolambo-district-madagascar
#20
Stephen A Spencer, James M St John Penney, Hannah J Russell, Anthony P Howe, Cortland Linder, Andriamahitsisambatra L D Rakotomampianina, Anjara M Nandimbiniaina, S Bertel Squire, J Russell Stothard, Amaya L Bustinduy, Alain M Rahetilahy
BACKGROUND: A school-based survey was undertaken to assess prevalence and infection intensity of schistosomiasis in school-aged children in the Marolambo District of Madagascar. METHODS: School-aged children from six purposively selected schools were tested for Schistosoma haematobium by urine filtration and Schistosoma mansoni using circulating cathodic antigen (CCA) and Kato-Katz stool analysis. The investigators did not address soil-transmitted helminths (STH) in this study...
June 24, 2017: Parasites & Vectors
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