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use of patterns of amphetamine

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https://www.readbyqxmd.com/read/27816502/dysregulated-corticostriatal-activity-in-open-field-behavior-and-the-head-twitch-response-induced-by-the-hallucinogen-2-5-dimethoxy-4-iodoamphetamine
#1
Claudia Rangel-Barajas, Ana María Estrada-Sánchez, Scott J Barton, Robert R Luedtke, George V Rebec
The substituted amphetamine, 2,5-dimethoxy-4-iodoamphetamine (DOI), is a hallucinogen that has been used to model a variety of psychiatric conditions. Here, we studied the effect of DOI on neural activity recorded simultaneously in the primary motor cortex (M1) and dorsal striatum of freely behaving FvB/N mice. DOI significantly decreased the firing rate of individually isolated neurons in M1 and dorsal striatum relative to pre-drug baseline. It also induced a bursting pattern of activity by increasing both the number of spikes within a burst and burst duration...
February 2017: Neuropharmacology
https://www.readbyqxmd.com/read/27784226/evidence-of-2-populations-of-mephedrone-abusers-by-hair-testing-application-to-4-forensic-expertises
#2
Pascal Kintz
New psychoactive substances are conquering the drug scene. Among these substances, cathinone derivatives have been observed since late in the year 2000. At that time, an increasing use of the synthetic cathinone mephedrone (4-methylmethcathinone) started to be observed, particularly among night clubbers. Although these new psychoactive drugs showed an appearance of safety, a growing amount of experiences on their secondary effects has been reported. Mephedrone for example is known to induce psychosis. Given the potential negative effects of mephedrone, the laboratory was asked to test for the drug in hair, a cumulative matrix that can document single, occasional or repetitive abuse of xenobiotics...
October 26, 2016: Current Neuropharmacology
https://www.readbyqxmd.com/read/27751959/function-of-brain-%C3%AE-2b-adrenergic-receptor-characterized-with-subtype-selective-%C3%AE-2b-antagonist-and-ko-mice
#3
Lauren Luhrs, Cynthia Manlapaz, Karen Kedzie, Sandhya Rao, Sara Cabrera-Ghayouri, John Donello, Daniel Gil
Noradrenergic signaling, through the α2A and α2C adrenergic receptors modulates the cognitive and behavioral symptoms of disorders such as schizophrenia, attention deficit hyperactivity disorder (ADHD), and addiction. However, it is unknown whether the α2B receptor has any significant role in CNS function. The present study elucidates the potential role of the α2B receptor in CNS function via the discovery and use of the first subtype-selective α2B antagonist (AGN-209419), and behavioral analyses of α-receptor knockout (KO) mice...
December 17, 2016: Neuroscience
https://www.readbyqxmd.com/read/27716139/comparison-of-pharmaceutical-illicit-drug-alcohol-nicotine-and-caffeine-levels-in-wastewater-with-sale-seizure-and-consumption-data-for-8-european-cities
#4
Jose Antonio Baz-Lomba, Stefania Salvatore, Emma Gracia-Lor, Richard Bade, Sara Castiglioni, Erika Castrignanò, Ana Causanilles, Felix Hernandez, Barbara Kasprzyk-Hordern, Juliet Kinyua, Ann-Kathrin McCall, Alexander van Nuijs, Christoph Ort, Benedek G Plósz, Pedram Ramin, Malcolm Reid, Nikolaos I Rousis, Yeonsuk Ryu, Pim de Voogt, Jorgen Bramness, Kevin Thomas
BACKGROUND: Monitoring the scale of pharmaceuticals, illicit and licit drugs consumption is important to assess the needs of law enforcement and public health, and provides more information about the different trends within different countries. Community drug use patterns are usually described by national surveys, sales and seizure data. Wastewater-based epidemiology (WBE) has been shown to be a reliable approach complementing such surveys. METHOD: This study aims to compare and correlate the consumption estimates of pharmaceuticals, illicit drugs, alcohol, nicotine and caffeine from wastewater analysis and other sources of information...
October 1, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27595649/tentative-identification-of-in-vitro-metabolites-of-5-apdb-a-synthetic-benzofuran-by-lc-q-tof-ms
#5
Jong Suk Park, Shaheed Ur Rehman, In Sook Kim, Min Sun Choi, Jae Sin Lee, Sanghwan In, Hye Hyun Yoo
5-(2-Aminopropyl)-2,3-dihydrobenzofuran (5-APDB) is a designer drug of phenethylamine and amphetamine class. In this study, the in vitro metabolism of 5-APDB was investigated in rat and human liver microsomes and human hepatocytes to characterize its metabolites. 5-APDB was incubated with microsomes or hepatocytes, and the reaction mixture was analyzed using liquid chromatography-quadrupole time-of-flight with tandem mass spectrometry (LC-Q/TOF-MS). 5-APDB was metabolized to yield three metabolites (M1, M2 and M3)...
October 15, 2016: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/27586539/the-discriminative-stimulus-properties-of-hallucinogenic-and-dissociative-anesthetic-drugs
#6
Tomohisa Mori, Tsutomu Suzuki
The subjective effects of drugs are related to the kinds of feelings they produce, such as euphoria or dysphoria. One of the methods that can be used to study these effects is the drug discrimination procedure. Many researchers have been trying to elucidate the mechanisms that underlie the discriminative stimulus properties of abused drugs (e.g., alcohol, psychostimulants, and opioids). Over the past two decades, patterns of drug abuse have changed, so that club/recreational drugs such as phencyclidine (PCP), 3,4-methylenedioxymethamphetamine (MDMA), ketamine, and cannabinoid, which induce perceptual distortions, like hallucinations, are now more commonly abused, especially in younger generations...
September 2, 2016: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/27538886/psychosis-associated-with-acute-recreational-drug-toxicity-a-european-case-series
#7
Odd Martin Vallersnes, Alison M Dines, David M Wood, Christopher Yates, Fridtjof Heyerdahl, Knut Erik Hovda, Isabelle Giraudon, Paul I Dargan
BACKGROUND: Psychosis can be associated with acute recreational drug and novel psychoactive substance (NPS) toxicity. However, there is limited data available on how common this is and which drugs are most frequently implicated. We describe a European case series of psychosis associated with acute recreational drug toxicity, and estimate the frequency of psychosis for different recreational drugs. METHODS: The European Drug Emergencies Network (Euro-DEN) collects data on presentations to Emergency Departments (EDs) with acute recreational drug and NPS toxicity at 16 centres in ten countries...
August 18, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27485987/substance-use-among-a-sample-of-healthcare-workers-in-kenya-a-cross-sectional-study
#8
Aggrey G Mokaya, Victoria Mutiso, Abednego Musau, Albert Tele, Yeri Kombe, Zipporah Ng'ang'a, Erica Frank, David M Ndetei, Veronic Clair
This study describes reported substance use among Kenyan healthcare workers (HCWs), as it has implications for HCWs' health, productivity, and their ability and likelihood to intervene on substance use. The Alcohol Smoking and Substance Involvement Screening Test (ASSIST) was administered to a convenience sample of HCWs (n = 206) in 15 health facilities. Reported lifetime use was 35.8% for alcohol, 23.5% for tobacco, 9.3% for cannabis, 9.3% for sedatives, 8.8% for cocaine, 6.4% for amphetamine-like stimulants, 5...
September 2016: Journal of Psychoactive Drugs
https://www.readbyqxmd.com/read/27478387/amphetamine-withdrawal-differentially-increases-the-expression-of-organic-cation-transporter-3-and-serotonin-transporter-in-limbic-brain-regions
#9
Rajeshwari R Solanki, Jamie L Scholl, Michael J Watt, Kenneth J Renner, Gina L Forster
Amphetamine withdrawal increases anxiety and stress sensitivity related to blunted ventral hippocampus (vHipp) and enhances the central nucleus of the amygdala (CeA) serotonin responses. Extracellular serotonin levels are regulated by the serotonin transporter (SERT) and organic cation transporter 3 (OCT3), and vHipp OCT3 expression is enhanced during 24 hours of amphetamine withdrawal, while SERT expression is unaltered. Here, we tested whether OCT3 and SERT expression in the CeA is also affected during acute withdrawal to explain opposing regional alterations in limbic serotonergic neurotransmission and if respective changes continued with two weeks of withdrawal...
2016: Journal of Experimental Neuroscience
https://www.readbyqxmd.com/read/27450550/the-stigmatisation-of-ice-and-under-reporting-of-meth-amphetamine-use-in-general-population-surveys-a-case-study-from-australia
#10
Jenny Chalmers, Kari Lancaster, Caitlin Hughes
BACKGROUND AND AIMS: Stigmatisation of illicit drug use is known to discourage people from reporting their use of illicit drugs. In the context of Australia's two recent "ice-epidemics" this study examines whether rapid increases in community concern about meth/amphetamine concurrent with increased stigmatising media reporting about meth/amphetamine "epidemics" are associated with increased under-reporting of its use in population surveys. METHODS: We examined the relationship between general population trends in self-reported lifetime use of and attitudes towards meth/amphetamine between 2001 and 2013, contextualised against related stimulants and heroin, using five waves of Australia's National Drug Strategy Household Survey (NDSHS), alongside trends in print media reporting on meth/amphetamine from 2001 to 2014...
October 2016: International Journal on Drug Policy
https://www.readbyqxmd.com/read/27450319/a-comparison-between-wastewater-based-drug-data-and-an-illicit-drug-use-survey-in-a-selected-community
#11
J H P van Wel, J Kinyua, A L N van Nuijs, S Salvatore, J G Bramness, A Covaci, G Van Hal
BACKGROUND: Estimations of drug use are mostly based on population surveys that can suffer from response biases. The current study evaluates using wastewater-based epidemiology (WBE) for assessing illicit drug use by comparing wastewater data with that from a population survey. METHODS: Introductory letters (29,083) were sent to inhabitants of Lier, Belgium, asking them to participate in an online survey study. Participants were asked to indicate their drug use in the past week for a 12-week period (September-November 2014)...
August 2016: International Journal on Drug Policy
https://www.readbyqxmd.com/read/27439499/improved-drug-use-patterns-at-6%C3%A2-months-post-discharge-from-inpatient-substance-use-disorder-treatment-results-from-compulsorily-and-voluntarily-admitted-patients
#12
Adrian R Pasareanu, John-Kåre Vederhus, Anne Opsal, Øistein Kristensen, Thomas Clausen
BACKGROUND: Treatment services to patients with substance use disorders (SUDs), including those mandated to treatment, needs to be evaluated and evidence based. The Norwegian Municipal Health Care Act calls for mandated treatment for persons with "severe and life-threatening substance use disorder" if these individuals are not otherwise willing to be voluntarily treated and consequently risk their lives over drug use. This study aims to examine substance use-related outcomes at 6 months following inpatient treatment and to analyse factors associated with improved outcomes and abstinence...
2016: BMC Health Services Research
https://www.readbyqxmd.com/read/27418071/locomotor-profiling-from-rodents-to-the-clinic-and-back-again
#13
Jared W Young, Arpi Minassian, Mark A Geyer
The quantification of unconditioned motoric activity is one of the oldest and most commonly utilized tools in behavioral studies. Although typically measured in reference to psychiatric disorders, e.g., amphetamine-induced hyperactivity used as a model of schizophrenia, bipolar disorder (BD), and Tourette's syndrome, the motoric behavior of psychiatric patients had not been quantified similarly to rodents until recently. The rodent behavioral pattern monitor (BPM) was reverse-translated for use in humans, providing the quantification of not only motoric activity but also the locomotor exploratory profile of various psychiatric populations...
2016: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/27383263/differentiation-of-ring-substituted-regioisomers-of-amphetamine-and-methamphetamine-by-supercritical-fluid-chromatography
#14
Hiroki Segawa, Yuko T Iwata, Tadashi Yamamuro, Kenji Kuwayama, Kenji Tsujikawa, Tatsuyuki Kanamori, Hiroyuki Inoue
Chromatographic differentiation of the ring-substituted regioisomers of amphetamine (AMP) and methamphetamine (MA) was performed by supercritical fluid chromatography (SFC). The behavior of the retention against the changes of column temperature and co-solvent proportion was studied. The obtained information facilitated the optimization of the each regioisomer. As a result, 2-, 3-, and 4-ring-substituted analogs of AMP and MA with methyl, methoxy, fluoro, chloro, and bromo groups were separated, generally within 6 min...
July 6, 2016: Drug Testing and Analysis
https://www.readbyqxmd.com/read/27315427/discordant-reporting-of-nonmedical-opioid-use-in-a-nationally-representative-sample-of-us-high-school-seniors
#15
Joseph J Palamar, Jenni A Shearston, Charles M Cleland
BACKGROUND: Nonmedical opioid use has become a major public health concern due to increases in treatment admissions, overdoses, and deaths. Use has also been linked to heroin initiation. Reliable data on nonmedical opioid use are needed to continue to inform prevention. OBJECTIVE: To determine the prevalence and correlates of discordant self-report of nonmedical use of opioids in a national sample. METHODS: Utilizing a nationally representative sample of 31,149 American high school seniors in the Monitoring the Future study (2009-2013), discordant responses between self-reported 12-month nonmedical opioid use and self-reported 12-month nonmedical Vicodin and OxyContin use (reporting Vicodin/OxyContin use, but not reporting "opioid" use) were assessed...
September 2016: American Journal of Drug and Alcohol Abuse
https://www.readbyqxmd.com/read/27275403/survey-on-hypothermia-and-hyperthermia-in-poisoned-patients-in-a-unique-referral-hospital-tehran-iran
#16
Naser Mozafari, Haleh Talaie, Simin Dokht Shoaei, Morteza Hashemian, Arezou Mahdavinejad
BACKGROUND: Body temperature is a critical criterion of health. Drugs and a variety of poisons can affect body temperature in poisoned patients, causing hyperthermia and hyperpyrexia. OBJECTIVES: Our previous study's findings in patients poisoned with organophosphate led us to the goal of this study: obtaining the initial tympanic temperature in patients poisoned by a variety of toxins. MATERIALS AND METHODS: A cross-sectional study reviewed the records of poisoned patients who were admitted to the toxicological intensive care unit (TICU) at Loghman Hakim hospital poison center (LHHPC) from February 2014 to February 2015...
April 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/27267686/high-fat-diet-augments-amphetamine-sensitization-in-mice-role-of-feeding-pattern-obesity-and-dopamine-terminal-changes
#17
Steve C Fordahl, Jason L Locke, Sara R Jones
High fat (HF) diet-induced obesity has been shown to augment behavioral responses to psychostimulants that target the dopamine system. The purpose of this study was to characterize dopamine terminal changes induced by a HF diet that correspond with enhanced locomotor sensitization to amphetamine. C57BL/6J mice had limited (2hr 3 d/week) or extended (24 h 7 d/week) access to a HF diet or standard chow for six weeks. Mice were then repeatedly exposed to amphetamine (AMPH), and their locomotor responses to an amphetamine challenge were measured...
October 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27219643/changes-in-drug-use-among-belgian-higher-education-students-a-comparison-between-2005-2009-and-2013
#18
Janelle H P van Wel, Johan F Rosiers, Guido Van Hal
BACKGROUND: Most drug users initiate illicit drug use during adolescence and young adulthood. Although in the general population a trend towards a decrease in drug use can be seen, patterns of drug use among students are unclear. OBJECTIVES: The objective of the study was to look at drug use patterns among students in higher education in Belgium. METHODS: A survey study in Antwerp (Belgium) was conducted on three occasions (2005, 2009, and 2013) at several institutes for higher education...
July 28, 2016: Substance Use & Misuse
https://www.readbyqxmd.com/read/27179320/temporal-trends-in-drug-use-in-adelaide-south-australia-by-wastewater-analysis
#19
Benjamin J Tscharke, Chang Chen, Jacobus P Gerber, Jason M White
Analysis of municipal wastewater for drug metabolites can reveal the scale of drug use within communities. An Australian city with a population of 1.2million inhabitants was assessed for 4 stimulants: cocaine, methamphetamine, 3.4-methylenedioxymethamphetamine (MDMA) and amphetamine; 6 opioids: codeine, morphine, heroin, fentanyl, oxycodone and methadone; 11 new psychoactive substances (NPS); benzylpiperazine (BZP), trifluoromethylphenylpiperazine (TFMPP), methcathinone, methylone, mephedrone, methylenedioxypyrovalerone (MDPV), alpha pyrrolidinopentiophenone (alpha-PVP), paramethoxyamphetamine (PMA), 25C-NBOMe, 25B-NBOMe, 25I-NBOMe; and cannabis, for up to four years between December 2011 and December 2015...
September 15, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27175554/psychosis-induced-by-amphetamines
#20
Jrgen G Bramness, Eline B Rognli
PURPOSE OF REVIEW: The study reviews publications on the use of methamphetamine and amphetamine in relation to psychotic symptoms, substance-induced psychosis, and primary psychosis published between July 2014 and December 2015. The databases MEDLINE, Embase, and PsycINFO were searched using the terms 'amphetamine psychosis' and 'methamphetamine psychosis' for the time period 1 July 2014 to 31 December 2015. RECENT FINDINGS: There were 37 studies published on the subject during this time period...
July 2016: Current Opinion in Psychiatry
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