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https://www.readbyqxmd.com/read/29762685/urine-multi-drug-screening-with-gc-ms-or-lc-ms-ms-using-salle-hybrid-ppt-spe
#1
Junhui Lee, Jiwon Park, Ahra Go, Heesung Moon, Sujin Kim, Sohee Jung, Wonjoon Jeong, Heesun Chung
To intoxicated patients in the emergency room, toxicological analysis can be considerably helpful for identifying the involved toxicants. In order to develop a urine multi-drug screening (UmDS) method, gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-tandem mass spectrometry (LC-MS-MS) were used to determine targeted and unknown toxicants in urine. A GC-MS method in scan mode was validated for selectivity, limit of detection (LOD) and recovery. An LC-MS-MS multiple reaction monitoring (MRM) method was validated for lower LOD, recovery and matrix effect...
May 14, 2018: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29750249/zolpidem-and-zolpidem-carboxylic-acid-results-from-medication-monitoring
#2
Sheng Feng, Oneka T Cummings, Gregory McIntire
Zolpidem (Ambien®) is one of the "Z" drugs often used to improve sleep in older patients and those suffering from insomnia. Schwope, D.M., DePriest, A., Black, D.L., Caplan, Y.H., Cone, E.J., Heltsley, R. (2014) Determing zolpidem compliance: urinary metabolite detection and prevalence in chronic pain patients . Journal of Analytical Toxicology, 38, 513-518 reported that zolpidem in urine is not very prevalent being present <23% of the time in patient urine while the major metabolite, zolpidem 4-phenyl carboxylic acid (ZCA), is much more prevalent in urine with positive rates as high as 50% of the patient samples reviewed...
May 10, 2018: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29742741/zolpidem-induced-sneezing-a-case-report-of-positive-rechallenge-erratum
#3
(no author information available yet)
No abstract text is available yet for this article.
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29726630/trends-in-the-long-term-use-of-benzodiazepine-anxiolytics-and-hypnotics-a-national-register-study-for-2006-to-2014
#4
Terhi Kurko, Leena K Saastamoinen, Annamari Tuulio-Henriksson, Tero Taiminen, Jari Tiihonen, Marja Airaksinen, Jarmo Hietala
PURPOSE: Long-term benzodiazepine (BZD) treatment continues to be a debated topic. Because individual BZDs have different clinical profiles, we assessed the nationwide trends of long-term BZD use at active substance level during years 2006 to 2014. METHODS: This study covered all reimbursed BZD purchases (n = 408 572-521 823 annually) for adults recorded in the Finnish Prescription Register. We assessed long-term use (annual cumulative purchase of ≥180 defined daily doses) in general, and at active substance level with the most commonly used BZD anxiolytics (oxazepam, diazepam, alprazolam, and clonazepam for nonepilepsy indications) and hypnotics (zopiclone, zolpidem, and temazepam) included...
May 4, 2018: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29720564/evidence-that-sedative-effects-of-benzodiazepines-involve-unexpected-gaba-a-receptor-subtypes-quantitative-observation-studies-in-rhesus-monkeys
#5
Angela N Duke, Zhiqiang Meng, Donna M Platt, John R Atack, Gerard R Dawson, David S Reynolds, V V N Phani Babu Tiruveedhula, Guanguan Li, Michael Rajesh Stephen, Werner Sieghart, James M Cook, James K Rowlett
Using non-human primates, we introduced a new set of behavioral categories for observable sedative effects based on pediatric anesthesiology classifications. We examined the effects of alprazolam and diazepam (non-selective benzodiazepines), zolpidem (preferential binding to α1 subunit-containing GABAA receptors), HZ-166 (8-ethynyl-6-(2'-pyridine)-4H-2,5,10b-triaza-benzo[e]azulene-3-carboxylic acid ethyl ester; functionally selective for α2 and α3 subunit-containing GABAA receptors), MRK-696 (7-cyclobutyl-6-(2-methyl-2H-1,2,4-triazol-2-ylmethoxy)-3-(2-flurophenyl)-1,2,4-triazolo(4,3-b)pyridazine; no selectivity but partial intrinsic activity), and TPA023B (6,2'-difluro-5'-(3-(1-hydroxy-1-methylethyl)imidazo(1,2-b((1,2,4)triazin-7-yl)(1,1'-biphenyl)-2-carbonitrile; selectivity for α2, α3, α5 subunit-containing GABAA receptors) using quantitative behavioral observation techniques in rhesus monkeys...
May 2, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29695101/triphlorethol-a-a-dietary-polyphenol-from-seaweed-decreases-sleep-latency-and-increases-non-rapid-eye-movement-sleep-in-mice
#6
Minseok Yoon, Suengmok Cho
In our previous studies, we have demonstrated that marine polyphenol phlorotannins promote sleep through the benzodiazepine site of the gamma-aminobutyric acid type A (GABAA ) receptors. In this follow-up study, the sleep-promoting effects of triphlorethol A, one of the major phlorotannin constituents, were investigated. The effect of triphlorethol A on sleep-wake architecture and profiles was evaluated based on electroencephalogram and electromyogram data from C57BL/6N mice and compared with the well-known hypnotic drug zolpidem...
April 24, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29667471/cost-effectiveness-analysis-of-suvorexant-for-the-treatment-of-japanese-elderly-patients-with-chronic-insnomnia-in-a-virtual-cohort
#7
Shinichi Nishimura, Mutsuhiro Nakao
AIMS: We assessed the cost effectiveness of the orexin receptor antagonist suvorexant against zolpidem, the most widely used hypnotic benzodiazepine receptor agonist in Japan. To this end, a model was used that factored in insomnia and the risk for hip fractures, which have devastating effects on the elderly. METHODS: Data were derived from published papers. The target population was a virtual cohort of elderly patients (≥65 years) with insomnia residing in Japan...
April 18, 2018: Journal of Medical Economics
https://www.readbyqxmd.com/read/29649764/sleep-after-intranasal-progesterone-vs-zolpidem-and-placebo-in-postmenopausal-women-a-randomized-double-blind-cross-over-study
#8
P Schüssler, M Kluge, M Adamczyk, M E Beitinger, P Beitinger, A Bleifuss, S Cordeiro, C Mattern, M Uhr, T C Wetter, A Yassouridis, R Rupprecht, E Friess, A Steiger
CONTEXT: The loss of progesterone during menopause is linked to sleep complaints of the affected women. Previously we demonstrated sleep promoting effects of oral progesterone replacement in postmenopausal women. The oral administration of progesterone, however, is compromised by individual differences in bioavailability and metabolism of the steroid. OBJECTIVE: We compared the sleep-endocrine effects after intranasal progesterone (MPP22), zolpidem and placebo in healthy postmenopausal women...
April 4, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29649695/doctor-shopping-of-opioid-analgesics-relative-to-benzodiazepines-a-pharmacoepidemiological-study-among-11-7-million-inhabitants-in-the-french-countries
#9
Camille Ponté, Marion Lepelley, Quentin Boucherie, Michel Mallaret, Maryse Lapeyre Mestre, Vincent Pradel, Joëlle Micallef
BACKGROUND: The abuse of prescription opioids and its subsequent consequences is an important public concern particularly in the USA. The literature on opioid analgesic abuse is scarce. OBJECTIVE: We assess the extent and risk of opioid analgesics abuse relative to benzodiazepines (BZD) using the doctor shopping method, taken into account the pharmacological characteristics (dosage, route of administration, extended or immediate release). METHODS: We used SNIIRAM database covering 11...
April 4, 2018: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/29619753/translating-benzodiazepine-utilization-data-into-meaningful-population-exposure-integration-of-two-metrics-for-improved-reporting
#10
Jaden Brandt, Wajd Alkabanni, Silvia Alessi-Severini, Christine Leong
Drug utilization research on benzodiazepines remains important for measuring trends in consumption within and across borders over time for the sake of monitoring prescribing patterns and identifying potential population safety concerns. The defined daily dose (DDD) system by the World Health Organization (WHO) remains the internationally accepted standard for measuring drug consumption; however, beyond consumption, DDD-based results are difficult to interpret when individual agents are compared with one another or are pooled into a total class-based estimate...
April 4, 2018: Clinical Drug Investigation
https://www.readbyqxmd.com/read/29606630/functional-characterization-of-native-high-affinity-gaba-a-receptors-in-human-pancreatic-%C3%AE-cells
#11
Sergiy V Korol, Zhe Jin, Yang Jin, Amol K Bhandage, Anders Tengholm, Nikhil R Gandasi, Sebastian Barg, Daniel Espes, Per-Ola Carlsson, Derek Laver, Bryndis Birnir
In human pancreatic islets, the neurotransmitter γ-aminobutyric acid (GABA) is an extracellular signaling molecule synthesized by and released from the insulin-secreting β cells. The effective, physiological GABA concentration range within human islets is unknown. Here we use native GABAA receptors in human islet β cells as biological sensors and reveal that 100-1000nM GABA elicit the maximal opening frequency of the single-channels. In saturating GABA, the channels desensitized and stopped working. GABA modulated insulin exocytosis and glucose-stimulated insulin secretion...
April 2018: EBioMedicine
https://www.readbyqxmd.com/read/29594968/profiles-of-patients-who-use-marijuana-for-inflammatory-bowel-disease
#12
Ann Marie Kerlin, Millie Long, Michael Kappelman, Christopher Martin, Robert S Sandler
BACKGROUND: Marijuana is legal in a number of states for indications that include inflammatory bowel diseases (IBD), and patients are interested in its potential benefits. AIMS: We aimed to describe the legal use of marijuana in individuals with IBD in the USA who participate within the CCFA Partners internet-based cohort. METHODS: A total of 2357 participants who lived in states where prescription or recreational marijuana was legal, were offered the opportunity to complete a survey on marijuana use and IBD symptoms including perceived benefits of therapy...
March 29, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29582450/tamper-resistant-prescription-forms-for-narcotics-in-france-should-we-generalise-them
#13
Amélie Daveluy, Lucie Sauvaget, Angela Bastien, Maryse Lapeyre-Mestre, Cédric Collin, Nathalie Richard, Françoise Haramburu
In France, prescription of narcotics must be written on a tamper-resistant prescription form with specific technical particularities. Dosage and daily dose of medicines shall be written out entirely in letters. These prescription forms are also mandatory for buprenorphine, clorazepate, clonazepam, tianeptine, buccal midazolam and zolpidem owing to traffic, abuse or diversion. In 2012, to assess the use of standard and tamper-resistant prescription forms and the acceptability of the generalization of the latter to all medicines, a national opinion survey was performed, with a postal questionnaire, within 3 randomized samples of 1,500 prescribers (physicians, dentists and midwives)...
March 27, 2018: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/29562972/zolpidem-as-a-sleep-aid-for-military-aviators
#14
Guan Sen Kew, Brian See
INTRODUCTION: Zolpidem is a short-acting nonbenzodiazepine hypnotic that has been approved by the Republic of Singapore Air Force (RSAF) for aircrew sleep management since 2005. Prior to consuming zolpidem for operational reasons, each RSAF aircrew member is required to undergo a ground test to exclude operationally relevant adverse drug effects. This study describes the RSAF's zolpidem ground testing outcomes over a 12.5-yr period. METHODS: This is a retrospective case series of 578 RSAF aircrew members who underwent zolpidem test dosing from 1 January 2005 to 30 June 2017...
April 1, 2018: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29520058/histone-deacetylases-mediate-gaba-a-receptor-expression-physiology-and-behavioral-maladaptations-in-rat-models-of-alcohol-dependence
#15
John Peyton Bohnsack, Benjamin A Hughes, Todd K O'Buckley, Kamyra Edokpolor, Joyce Besheer, A Leslie Morrow
Alcohol use disorders are chronic debilitating diseases characterized by severe withdrawal symptoms that contribute to morbidity and relapse. GABAA receptor (GABAA R) adaptations have long been implicated in the chronic effects of alcohol and contribute to many withdrawal symptoms associated with alcohol dependence. In rodents, GABAA R hypofunction results from decreases in Gabra1 expression, although the underlying mechanism controlling Gabra1 expression after chronic ethanol exposure is still unknown. We found that chronic ethanol exposure using either ethanol gavage or two-bottle choice voluntary access paradigms decreased Gabra1 expression and increased Hdac2 and Hdac3 expression...
June 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29489694/zolpidem-induced-sneezing-a-case-report-of-positive-rechallenge
#16
Razie Amraei, Abdolhamid Parsa, Mohammad Babaeian
INTRODUCTION: Zolpidem, as an imidazopyridine, is a widely prescribed drug in clinical practice for short-term treatment of insomnia. Nevertheless, there have been a number of cases associated with the adverse effects of the stated drug recently. Further to the existing reports of adverse reactions to zolpidem, the current script is going to report a case in which zolpidem has induced acute repetitive sneezes. CONCLUSIONS: A high dose of zolpidem may contribute to interruption to the neurons function involved in the sneezing pathway...
March 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29487083/drugs-for-insomnia-beyond-benzodiazepines-pharmacology-clinical-applications-and-discovery
#17
REVIEW
Tobias Atkin, Stefano Comai, Gabriella Gobbi
Although the GABAergic benzodiazepines (BZDs) and Z-drugs (zolpidem, zopiclone, and zaleplon) are FDA-approved for insomnia disorders with a strong evidence base, they have many side effects, including cognitive impairment, tolerance, rebound insomnia upon discontinuation, car accidents/falls, abuse, and dependence liability. Consequently, the clinical use of off-label drugs and novel drugs that do not target the GABAergic system is increasing. The purpose of this review is to analyze the neurobiological and clinical evidence of pharmacological treatments of insomnia, excluding the BZDs and Z-drugs...
April 2018: Pharmacological Reviews
https://www.readbyqxmd.com/read/29484607/treatment-of-tardive-dyskinesia-a-general-overview-with-focus-on-the-vesicular-monoamine-transporter-2-inhibitors
#18
Nicki Niemann, Joseph Jankovic
Tardive dyskinesia (TD) encompasses the spectrum of iatrogenic hyperkinetic movement disorders following exposure to dopamine receptor-blocking agents (DRBAs). Despite the advent of atypical or second- and third-generation antipsychotics with a presumably lower risk of complications, TD remains a persistent and challenging problem. Prevention is the first step in mitigating the risk of TD, but early recognition, gradual withdrawal of offending medications, and appropriate treatment are also critical. As TD is often a persistent and troublesome disorder, specific antidyskinetic therapies are often needed for symptomatic relief...
April 2018: Drugs
https://www.readbyqxmd.com/read/29442611/relative-toxicity-of-benzodiazepines-and-hypnotics-commonly-used-for-self-poisoning-an-epidemiological-study-of-fatal-toxicity-and-case-fatality
#19
Galit Geulayov, Anne Ferrey, Deborah Casey, Claudia Wells, Alice Fuller, Clare Bankhead, David Gunnell, Caroline Clements, Navneet Kapur, Jennifer Ness, Keith Waters, Keith Hawton
The relative toxicity of anxiolytic and hypnotic drugs commonly used for self-poisoning was assessed using data on suicides, prescriptions and non-fatal self-poisonings in England, 2005-2012. Data on suicide by self-poisoning were obtained from the Office for National Statistics, information on intentional non-fatal self-poisoning was derived from the Multicentre Study of Self-harm in England and data on prescriptions in general practice from the Clinical Practice Research Datalink. We used two indices of relative toxicity: fatal toxicity (the number of fatal self-poisonings relative to the number of individuals prescribed each drug) and case fatality (the number of fatal relative to non-fatal self-poisonings)...
February 1, 2018: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/29436015/medical-prescriptions-falsified-by-the-patients-a-12-year-national-monitoring-to-assess-prescription-drug-diversion
#20
Emilie Jouanjus, Grégory Guernec, Maryse Lapeyre-Mestre
Diversion of prescription drugs is difficult to assess in quality and quantity. This study aimed to characterize diversion of prescription drugs in France through a comparative analysis of falsified prescriptions collected during three periods from 2001 to 2012. The data recorded in a national program which records all falsified prescriptions presented to community pharmacies were studied. Included data regarded: subjects, prescription forms, and drugs. Description of the dataset in three periods (2001-2004, 2005-2008, and 2009-2012) was completed with clustering analyses to characterize profiles of prescriptions and subjects associated with the most reported drugs...
February 13, 2018: Fundamental & Clinical Pharmacology
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