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new psychoactive substances (NPS)

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https://www.readbyqxmd.com/read/28738608/a-fast-bioanalytical-method-based-on-microextraction-by-packed-sorbent-and-uplc-ms-ms-for-determining-new-psychoactive-substances-in-oral-fluid
#1
A M Ares, P Fernández, M Regenjo, A M Fernández, A M Carro, R A Lorenzo
The emergence in recent years of potentially dangerous new psychoactive substances (NPS) that are not under international control has led to the development of multi-analyte procedures for their unequivocal quantification. A fast ultra-performance liquid chromatography-tandem mass spectrometry method (UPLC-MS/MS), in combination with a sample pretreatment based on microextraction by packed sorbent (MEPS), was for the first time used in this work for the simultaneous determination of NPS in oral fluid. This matrix is an effective alternative to typical biological samples for drug control in substitution therapy programs, and also for the prevention and reduction of traffic accidents...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28710651/intoxication-caused-by-new-psychostimulants-analytical-methods-to-disclose-acute-and-chronic-use-of-benzofurans-and-ethylphenidate
#2
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/28708288/distinguishing-of-2-mapb-and-6-mapb-solution-of-the-problem
#3
Vadim Shevyrin, Yuri Shafran
Differentiation of new psychoactive substance (NPS), 6-(2-methylaminopropyl)benzofuran (6-MAPB), and its positional isomer, 2-(2-methylaminopropyl)benzofuran (2-MAPB), by means of gas chromatography/mass spectrometry (GC/MS) with quadrupole detection is ambiguous. Reliable distinguishing of the two isomers could be achieved by MS/MS spectra recorded after collision-induced dissociation (CID) of precursor ions. Both electron ionization (EI) and electrospray ionization (ESI) methods could be used for these purposes...
July 14, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28686986/illicit-drug-consumption-in-school-populations-measured-by-wastewater-analysis
#4
Ettore Zuccato, Emma Gracia-Lor, Nikolaos I Rousis, Alberto Parabiaghi, Ivan Senta, Francesco Riva, Sara Castiglioni
BACKGROUND: Analysis of student consumption of illicit drugs (ID) by school population surveys (SPS) provides information useful for prevention, but the results may be influenced by subjective factors. We explored wastewater (WW) analysis to improve the information. METHODS: We used WW analysis to measure ID consumption in eight secondary schools in Italy in 2010-13 (students aged 15-19). Samples were collected from the sewage pipes of the schools during lessons for one week each year...
June 24, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28677876/human-urinary-metabolic-patterns-of-the-designer-benzodiazepines-flubromazolam-and-pyrazolam-studied-by-liquid-chromatography-high-resolution-mass-spectrometry
#5
Madeleine Pettersson Bergstrand, Markus R Meyer, Olof Beck, Anders Helander
Over the past ~8 years, hundreds of unregulated new psychoactive substances (NPS) of various chemical categories have been introduced as recreational drugs through mainly open online trade. This study was performed to further investigate the human metabolic pattern of the NPS, or designer benzodiazepines flubromazolam and pyrazolam, and to propose analytical targets for urine drug testing of these substances. The urine samples originated from patient samples confirmed by liquid chromatography-high-resolution tandem mass spectrometry (LC-HRMS/MS) analysis to contain flubromazolam or pyrazolam...
July 5, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28677506/mephedrone-concentrations-in-cases-of-clinical-intoxication
#6
Esther Papaseit, Eulàlia Olesti, Rafael de la Torre, Marta Torrens, Magí Farré
Background Mephedrone (4-methylmethcathinone, 4-MMC), a ring-substituted synthetic cathinone derivative has become established as a permanent illicit drug in the dynamic new psychoactive substances (NPS) scene. Objective This review summarizes current knowledge on mephedrone concentrations in biological samples from cases of acute intoxications (fatal and non-fatal), pharmacokinetics studies, wastewater and anonymous pooled urine analysis in order to provide an overview of the reliable scientific knowledge on toxicokinetics of mephedrone in humans...
July 4, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28677501/prevalence-and-surveillance-of-synthetic-cathinones-use-by-hair-analysis-an-update-review
#7
J C Alvarez, N Fabresse, I A Larabi
New psychoactive substances (NPS) have emerged in a threatening way in the last decades. They are sold via the internet or head shops with several names (bath salts, Research chemical, RCs, Legal Highs) and forms (pills, tablets, powder...etc.), and are labelled ambiguously to escape governmental legislation. Designer drugs belong to different chemical classes, but cathinones derivatives presented the most prevalent group. In 2013, this group accounted for 30% of NPS seizures in Europe with more than 450 different compounds, including 101 new molecules reported for the first time in 2014...
July 4, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28676005/opioids-in-the-frame-of-new-psychoactive-substances-network-a-complex-pharmacological-and-toxicological-issue
#8
Ludovic Ventura, Félix Carvalho, Ricardo Jorge Dinis-Oliveira
New psychoactive substances (NPS), often referred to as "legal highs" or "designer drugs", are derivatives and analogues of existing psychoactive drugs that are introduced in the recreational market to circumvent existing legislation on drugs of abuse. Due to inefficient monitoring techniques, as well as limited knowledge concerning long-time effects of NPS, further studies regarding such compounds are constantly required. This systematic review aims to gather the state of the art regarding chemical, molecular pharmacology and toxicological information of opioid class of NPS...
July 4, 2017: Current Molecular Pharmacology
https://www.readbyqxmd.com/read/28672699/qualitative-screening-for-new-psychoactive-substances-in-wastewater-collected-during-a-city-festival-using-liquid-chromatography-coupled-to-high-resolution-mass-spectrometry
#9
Ana Causanilles, Juliet Kinyua, Christoph Ruttkies, Alexander L N van Nuijs, Erik Emke, Adrian Covaci, Pim de Voogt
The inclusion of new psychoactive substances (NPS) in the wastewater-based epidemiology approach presents challenges, such as the reduced number of users that translates into low concentrations of residues and the limited pharmacokinetics information available, which renders the choice of target biomarker difficult. The sampling during special social settings, the analysis with improved analytical techniques, and data processing with specific workflow to narrow the search, are required approaches for a successful monitoring...
October 2017: Chemosphere
https://www.readbyqxmd.com/read/28670781/structural-characterization-and-pharmacological-evaluation-of-the-new-synthetic-cannabinoid-cumyl-pegaclone
#10
Verena Angerer, Lukas Mogler, Jan-Patrick Steitz, Philippe Bisel, Cornelius Hess, Clara T Schoeder, Christa E Müller, Laura M Huppertz, Folker Westphal, Jan Schäper, Volker Auwärter
The number of new psychoactive substances (NPS) that have emerged on the European market has been rapidly growing in the last years, with a particularly high number of new compounds from the group of synthetic cannabinoid receptor agonists. There have been various political efforts to control the trade and the use of NPS worldwide. In Germany, the 'Act to control the distribution of new psychoactive substances' (NpSG) came into force in November 2016. In this new Act two groups of substances were defined, the group 'cannabimimetics/synthetic cannabinoids' covering indole, indazole and benzimidazole core structures, and a second group named 'compounds derived from 2-phenethylamine'...
July 3, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28668480/a-new-challenge-in-forensic-toxicology-exemplified-by-a-case-of-murder-under-the-influence-of-a-synthetic-cannabinoid-am-2201
#11
Sebastian Rojek, Małgorzata Kłys, Martyna Maciów-Głąb, Karol Kula
Among new psychoactive substances (NPS) available on the narcotic market, a significant number consists of synthetic cannabinoids commonly known as smokable herbal "spice" and "K2", and which are legally treated as a legal alternative to marijuana. The dearth of information on the pharmacology of these intoxicants as they are introduced into the market has created the urgent need among healthcare providers for case studies on the substances belonging to this group, both in terms of the consequences of using such intoxicants, and in methods of detection...
June 24, 2017: Legal Medicine
https://www.readbyqxmd.com/read/28659208/-intoxication-with-new-psychoactive-substances-drug-unknown-but-complications-are-still-treatable
#12
M N Boersma, J J Nugteren-van Lonkhuyzen, E M van Maarseveen, H A H Kaasjager, A J H P van Riel, D Dekker
Abuse of new psychoactive substances (NPS) and the number of patients presenting to the ER with intoxication are increasing. Treatment may at first sight seem complicated because of limited knowledge of the substance involved, but should be based on a general supportive approach recognising the relatively predictable spectrum of symptoms caused by adrenergic, serotonergic and dopaminergic stimulation. In this article, we discuss the vital elements of this approach and possible complications of NPS intoxication...
2017: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/28657191/intended-and-unintended-use-of-cathinone-mixtures
#13
Amira Guirguis, John Martin Corkery, Jacqueline Leslie Stair, Stewart Brian Kirton, Mire Zloh, Fabrizio Schifano
INTRODUCTION: Cathinones are one of the most popular categories of new psychoactive substances (NPS) consumed. Cathinones have different pharmacological activities and receptor selectivity for monoamine transporters based on their chemical structures. They are incorporated into NPS mixtures and used with other NPS or 'traditional' drugs. Cathinone use represents significant health risks to individuals and is a public health burden. METHODS: Evidence of poly-NPS use with cathinones, seizure information, and literature analyses results on NPS mixtures was systematically gathered from online database sources, including Google Scholar, Scopus, Bluelight, and Drugs-Forum...
May 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28657188/from-concept-ion-to-life-after-death-the-grave-the-natural-history-and-life-cycle-s-of-novel-psychoactive-substances-nps
#14
John Martin Corkery, Laura Orsolini, Duccio Papanti, Fabrizio Schifano
A range of information needs should be met in order to better understand and predict the longevity/existence of novel psychoactive substances (NPS). This conceptual paper argues that one way of assessing how long a molecule may be around is to document how the life cycles or natural histories of 'traditional' drugs and NPS evolve. The earliest indication of the possible appearance of a new substance might be evidenced on the DeepWeb. However, this means they are less visible, in line with the clandestine nature of drug use and supply...
May 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28640970/prevalence-of-new-psychoactive-substances-and-prescription-drugs-in-the-belgian-driving-under-the-influence-of-drugs-population
#15
S M R Wille, C Richeval, M Nachon-Phanithavong, J M Gaulier, V Di Fazio, L Humbert, N Samyn, D Allorge
Driving under the influence of drugs (DUID) is a worldwide problem. Several countries adopted DUID legislations which prove their deterrent effect and impact on road safety. However, use of new psychoactive substances (NPS) and prescription drugs is not known as the applied roadside screening tests are not yet adapted for these compounds. In this study, 558 blood samples obtained during roadside controls in Belgium (January to August 2015) after a positive Drugwipe 5S® test and 199 oral fluid (OF) samples obtained from negatively screened test pads were analyzed...
June 22, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28634759/current-applications-of-high-resolution-mass-spectrometry-for-the-analysis-of-new-psychoactive-substances-a-critical-review
#16
REVIEW
Daniel Pasin, Adam Cawley, Sergei Bidny, Shanlin Fu
The proliferation of new psychoactive substances (NPS) in recent years has resulted in the development of numerous analytical methods for the detection and identification of known and unknown NPS derivatives. High-resolution mass spectrometry (HRMS) has been identified as the method of choice for broad screening of NPS in a wide range of analytical contexts because of its ability to measure accurate masses using data-independent acquisition (DIA) techniques. Additionally, it has shown promise for non-targeted screening strategies that have been developed in order to detect and identify novel analogues without the need for certified reference materials (CRMs) or comprehensive mass spectral libraries...
June 20, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28629236/advances-in-new-psychoactive-substances-identification-the-u-r-i-to-n-consortium
#17
Elisabetta Bertol, Fabio Vaiano, Francesco Mari, Maria Grazia Di Milia, Silvia Bua, Claudiu T Supuran, Fabrizio Carta
Identification of new psychoactive substances (NPS) in biological and non-biological samples represents a hard challenge for forensic toxicologists. Their great chemical variety and the speed with which new NPS are synthesised and spread make stringent the need of advanced tools for their detection based on multidisciplinary approaches. For this reason, in August 2016, the "Unit of Research and Innovation in Forensic Toxicology and Neuroscience of Addiction" (U.R.I.To.N.) was founded by the Forensic Toxicology Division of the University of Florence...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28617997/a-market-on-both-sides-of-the-law-the-use-of-the-hidden-web-for-the-sale-of-new-psychoactive-substances
#18
Elle Wadsworth, Colin Drummond, Andreas Kimergård, Paolo Deluca
OBJECTIVE: The hidden Web is used for the anonymous sale of drugs, and with the UK Psychoactive Substances Act, 2016, implemented on May 26th 2016; it could increase as a platform for obtaining new psychoactive substances (NPS). This study aims to describe the NPS market on the visible and hidden Web preban, and assess whether the hidden Web is a likely place for the sale of NPS postban. METHODS: Data collection of 113 online shops took place in October 2015. Data collection of 22 cryptomarkets took place every 2 months from October 2015 to 2016 as part of the CASSANDRA project...
June 15, 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28602505/proposal-of-5-methoxy-n-methyl-n-isopropyltryptamine-consumption-biomarkers-through-identification-of-in-vivo-metabolites-from-mice
#19
D Fabregat-Safont, M Barneo-Muñoz, F Martinez-Garcia, J V Sancho, F Hernández, M Ibáñez
New psychoactive substances (NPS) are a new breed of synthetically produced substances designed to mimic the effects of traditional illegal drugs. Synthetic cannabinoids and synthetic cathinones are the two most common groups, which try to mimic the effects of the natural compounds (9)Δ-tetrahydrocannabinol and cathinone, respectively. Similarly, synthetic tryptamines are designer compounds which are based on the compounds psilocin, N,N-dimethyltryptamine and 5-methoxy-N,N-dimethyltryptamine found in some mushrooms...
June 5, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28601767/pooled-human-liver-preparations-heparg-or-hepg2-cell-lines-for-metabolism-studies-of-new-psychoactive-substances-a-study-using-mdma-mdbd-butylone-mdppp-mdpv-mdpb-5-mapb-and-5-api-as-examples
#20
Lilian H J Richter, Veit Flockerzi, Hans H Maurer, Markus R Meyer
Metabolism studies play an important role in clinical and forensic toxicology. Because of potential species differences in metabolism, human samples are best suitable for elucidating metabolism. However, in the case of new psychoactive substances (NPS), human samples of controlled studies are not available. Primary human hepatocytes have been described as gold standard for in vitro metabolism studies, but there are some disadvantages such as high costs, limited availability, and variability of metabolic enzymes...
September 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
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