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https://www.readbyqxmd.com/read/28230564/attention-deficit-hyperactivity-disorder-aggression-and-illicit-stimulant-use-is-this-self-medication
#1
Annie P Odell, Grace L Reynolds, Dennis G Fisher, Loucine M Huckabay, William C Pedersen, Pamela Xandre, Milica Miočević
This study compares adults with and without attention deficit hyperactivity disorder (ADHD) on measures of direct and displaced aggression and illicit drug use. Three hundred ninety-six adults were administered the Wender Utah Rating Scale, the Risk Behavior Assessment, the Aggression Questionnaire (AQ), and the Displaced Aggression Questionnaire (DAQ). Those with ADHD were higher on all scales of the AQ and DAQ, were younger at first use of amphetamines, and were more likely to have ever used crack and amphetamines...
February 22, 2017: Journal of Nervous and Mental Disease
https://www.readbyqxmd.com/read/28229938/participation-of-ghrelin-signalling-in-the-reciprocal-regulation-of-hypothalamic-npy-pomc-mediated-appetite-control-in-amphetamine-treated-rats
#2
Ching-Han Yu, Shu-Chen Chu, Pei-Ni Chen, Yih-Shou Hsieh, Dong-Yih Kuo
Hypothalamic neuropeptide Y (NPY) and proopiomelanocortin (POMC) have been documented to participate in amphetamine (AMPH)-induced appetite suppression. This study investigated whether ghrelin signalling is associated with changes in NPY/POMC-mediated appetite control. Rats were given AMPH daily for four days, and changes in food intake, body weight, plasma ghrelin, hypothalamic NPY, melanocortin 3 receptor (MC3R), ghrelin O-acyltransferase (GOAT), acyl ghrelin (AG) and ghrelin receptor (GHSR1a) were examined and compared...
February 13, 2017: Appetite
https://www.readbyqxmd.com/read/28224841/amphetamine-use-speeds-up-biological-ageing-of-the-heart
#3
(no author information available yet)
The recreational use of amphetamine can hasten the biological ageing of the heart, say researchers in Australia.
February 22, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28223211/sensitizing-exposure-to-amphetamine-increases-ampa-receptor-phosphorylation-without-increasing-cell-surface-expression-in-the-rat-nucleus-accumbens
#4
Qiang Wang, Dongdong Li, Nancy Bubula, Matthew R Campioni, Daniel S McGehee, Paul Vezina
Exposure to psychostimulants like cocaine or amphetamine leads to long-lasting sensitization of their behavioral and neurochemical effects. Here we characterized changes in AMPA receptor distribution and phosphorylation state in the rat nucleus accumbens (NAcc) weeks after amphetamine exposure to assess their potential contribution to sensitization by this drug. Using protein cross-linking, biochemical, subcellular fractionation, and slice electrophysiological approaches in the NAcc, we found that, unlike cocaine, previous exposure to amphetamine did not increase cell surface levels of either GluA1 or GluA2 AMPA receptor subunits, redistribution of these subunits to the synaptic or perisynaptic cellular membrane domains, protein-protein associations required to support the accumulation and retention of AMPA receptors in the PSD, or the peak amplitude of AMPA receptor mediated mEPSCs recorded in NAcc slices...
February 18, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28223210/a-novel-glp-1-gip-dual-receptor-agonist-protects-from-6-ohda-lesion-in-a-rat-model-of-parkinson-s-disease
#5
Jaishree Jalewa, Mohit Kumar Sharma, Simon Gengler, Christian Hölscher
The incretins glucagon-like peptide 1 (GLP-1) and glucose dependent insulinotropic polypeptide (GIP) are growth factors that have shown neuroprotective effects in animal models of Parkinson's and Alzheimer's disease. In addition, the GLP-1 mimetic exendin-4 has shown protective effects in a clinical trial in Parkinson's disease (PD) patients. GLP-1 analogues are currently on the market as treatments for type II diabetes. We previously showed that the novel dual agonist (DA-JC1) was effective in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of PD...
February 20, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28222475/ecstasy-intoxikation-mit-disseminierter-intravasaler-gerinnung-und-multiorganversagen
#6
Martina Jochum, Joachim Oeding, Denise Lackner, Hannes Lienhart
This case presents the clinical treatment of a patient with severe MDMA intoxication. The history of stimulating psychotropic substances is presented as well as the modes of action of current party drugs. Data from the Austrian Drug Report indicate a tendency away from "hard drugs" towards the consumption of cannabis and amphetamine derivates. The lethal outcome in our case demonstrates the risk potential of these substances and underlines the necessity of aggressive resuscitation efforts.
February 2017: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/28219696/irisin-in-goldfish-carassius-auratus-effects-of-irisin-injections-on-feeding-behavior-and-expression-of-appetite-regulators-uncoupling-proteins-and-lipoprotein-lipase-and-fasting-induced-changes-in-fndc5-expression
#7
Zahndra Diann Butt, Jessica Dalton Hackett, Hélène Volkoff
Irisin is a peptide cleaved from the fibronectin type III domain containing protein 5 (FNDC5) gene that is secreted predominantly by muscle cells but also by other tissues including brain and intestine. In mammals, irisin has been shown to have thermogenic actions via the modulation of uncoupling proteins (UCPs) and to affect feeding and energy homeostasis via actions in brain, adipose tissue, liver, muscle and gastrointestinal tract. To examine the role of irisin on feeding and metabolism in fish, the effects of peripheral (intraperitoneal) injections of irisin on feeding behavior, glucose levels and the mRNA expressions of appetite regulators (cocaine and amphetamine regulated transcript CART, agouti related protein AgRP, orexin), UCPs and lipoprotein lipase LPL and brain factors (brain-derived neurotrophic factor , BDNF and tyrosine hydroxylase TH) were assessed in brain, white muscle and intestine...
February 17, 2017: Peptides
https://www.readbyqxmd.com/read/28214742/what-s-the-agreement-between-self-reported-and-biochemical-verification-of-drug-use-a-look-at-permanent-supportive-housing-residents
#8
Alexis Rendon, Melvin Livingston, Sumihiro Suzuki, Whitney Hill, Scott Walters
Self-reported substance use is commonly used as an outcome measure in treatment research. We evaluated the validity of self-reported drug use in a sample of 334 adults with mental health problems who were residing in supportive housing programs. The primary analysis was the calculation of the positive predictive values (PPVs) of self-report compared to an oral fluid test taken at the same time. A sensitivity analysis compared the positive predictive values of two self-reported drug use histories: biological testing window (ranging between the past 96h to 30days depending on drug type) or the full past 90-day comparison window (maximum length recorded during interview)...
February 10, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28212679/histopathological-study-of-cardiac-lesions-in-methamphetamine-poisoning-related-deaths
#9
Maryam Akhgari, Homeira Mobaraki, Afshar Etemadi-Aleagha
BACKGROUND: Methamphetamine abuse is a worldwide health concern. Methamphetamine causes health hazards in many vital organs. It can cause damage to cardiac tissue via catecholamines release. Methamphetamine related deaths are becoming one of the most important problems in Iran. The purpose of the present study was to determine cardiac pathology in methamphetamine poisoning-related deaths. METHODS: The study included 100 cases of methamphetamine poisoning-related deaths and 100 cases as control group...
February 17, 2017: Daru: Journal of Faculty of Pharmacy, Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28211669/3-aminomethyl-derivatives-of-2-phenylimidazo-1-2-a-pyridine-as-positive-allosteric-modulators-of-gabaa-receptor-with-potential-antipsychotic-activity
#10
Monika Marcinkowska, Marcin Kolaczkowski, Krzysztof Kamiński, Adam Bucki, Maciej Henryk Pawlowski, Agata Siwek, Tadeusz Karcz, Gabriela Starowicz, Karolina Sloczynska, Elżbieta Pękala, Anna Wesołowska, Jerzy Samochowiec, Paweł Mierzejewski, Przemyslaw Bienkowski
Schizophrenia is a mental illness characterized by behavioral changes as well as anatomical and neurochemical abnormalities. There has been a remarkable progress in the drug discovery for schizophrenia; however, antipsychotics that act through molecular targets, other than monoaminergic receptors, have not been developed. One of the hypotheses of schizophrenia states that GABAergic dysfunction might be implemented in the pathophysiology of this disease. Our recent findings and previous clinical observations have suggested that modulation of GABAergic system through α1-GABAA receptors would represent an original approach for the treatment of schizophrenia...
February 17, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28207572/cross-reactivity-of-chloroquine-and-hydroxychloroquine-with-dri-amphetamine-immunoassay
#11
Isabel Gomila, Loreto Quesada, Victoria López-Corominas, Julia Fernández, Miguel Ángel Servera, Laura Sahuquillo, Macarena Dastis, Albert Torrents, Bernardino Barceló
BACKGROUND: Chloroquine and hydroxychloroquine are medical drugs used to treat the chemoprophylaxis of malaria as well as a second-line anti-inflammatory drug. METHODS: We performed a study of cross-reactivity of chloroquine and hydroxychloroquine in the DRI Amphetamine Assay inspired by a case report of a self-ingestion of chloroquine following a family dispute, that involved the following: (a) an in vitro study with control samples of healthy subjects, (b) an in vivo study with samples of patients with rheumatoid arthritis, and (c) an evaluation of the cross-reactivity of chloroquine and hydroxychloroquine in three additional immunoassays...
February 14, 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/28196426/development-of-a-functional-observational-battery-in-the-minipig-for-regulatory-neurotoxicity-assessments
#12
Miao Zhong, Catherine Shoemake, Amber Fuller, David White, Chris Hanks, Derek Brocksmith, Jason Liu, Shayne Gad, Guy Bouchard, Alain Stricker-Krongrad
A functional observational battery (FOB) is recommended as the first-tier neurotoxicity screening in the preclinical safety pharmacology testing guidelines. Minipigs have increasingly been used in regulatory toxicology studies; however, no current FOB protocol is available for neurotoxicity testing in these species. Hence, a minipig FOB instrument was developed. A complete crossover study with Sinclair minipigs was performed to evaluate physiologic, neurologic, and behavioral effects of amphetamine, ketamine, and diazepam...
January 1, 2017: International Journal of Toxicology
https://www.readbyqxmd.com/read/28191490/dietary-triglycerides-as-signaling-molecules-that-influence-reward-and-motivation
#13
Chloé Berland, Céline Cansell, Thomas S Hnasko, Christophe Magnan, Serge Luquet
The reinforcing and motivational aspects of food are tied to the release of the dopamine in the mesolimbic system (ML). Free fatty acids from triglyceride (TG)-rich particles are released upon action of TG-lipases found at high levels in peripheral oxidative tissue (muscle, heart), but also in the ML. This suggests that local TG-hydrolysis in the ML might regulate food seeking and reward. Indeed, evidence now suggests that dietary TG directly target the ML to regulate amphetamine-induced locomotion and reward seeking behavior...
June 2016: Current Opinion in Behavioral Sciences
https://www.readbyqxmd.com/read/28189103/ultrasound-assisted-dispersive-liquid-liquid-microextraction-for-the-determination-of-seven-recreational-drugs-in-human-whole-blood-using-gas-chromatography-mass-spectrometry
#14
Zebin Lin, Jiaolun Li, Xinyu Zhang, Meihong Qiu, Zhibin Huang, Yulan Rao
Recreational drugs have large impact on public health and security, and to monitor them is of urgent demand. In the present study, ultrasound-assisted dispersive liquid-liquid microextraction combined with the detection of gas chromatography-mass spectrometry was applied to the determination of seven common recreational drugs, including amphetamine, methamphetamine, 3,4-methylenedioxyamphetamine, 3,4-methylenedioxymethamphetamine, meperidine, methadone and ketamine in 200μL of human whole blood. A series of factors which would affect the extraction efficiency were systematically investigated, including the nature and the volume of extraction and dispersing solvents, ultrasonication time, salting-out effect and pH value...
January 22, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28187857/adaptive-and-behavioral-changes-in-kynurenine-3-monooxygenase-knockout-mice-relevance-to-psychotic-disorders
#15
Sophie Erhardt, Ana Pocivavsek, Mariaelena Repici, Xi-Cong Liu, Sophie Imbeault, Daniel C Maddison, Marian A R Thomas, Joshua L Smalley, Markus K Larsson, Paul J Muchowski, Flaviano Giorgini, Robert Schwarcz
BACKGROUND: Kynurenine 3-monooxygenase converts kynurenine to 3-hydroxykynurenine, and its inhibition shunts the kynurenine pathway-which is implicated as dysfunctional in various psychiatric disorders-toward enhanced synthesis of kynurenic acid, an antagonist of both α7 nicotinic acetylcholine and N-methyl-D-aspartate receptors. Possibly as a result of reduced kynurenine 3-monooxygenase activity, elevated central nervous system levels of kynurenic acid have been found in patients with psychotic disorders, including schizophrenia...
December 16, 2016: Biological Psychiatry
https://www.readbyqxmd.com/read/28182965/simultaneous-use-of-alcohol-with-methamphetamine-but-not-ecstasy-linked-with-aggression-among-young-adult-stimulant-users
#16
Ellen M Leslie, Andrew Smirnov, Adrian Cherney, Helene Wells, Margot Legosz, Robert Kemp, Jake M Najman
INTRODUCTION: Illicit stimulants are often combined with alcohol in nightlife entertainment districts, an environment where aggressive behaviour commonly occurs. While alcohol and methamphetamine use are each associated with aggressive behaviour, relatively little is known about the impact of the combined use of alcohol and amphetamine-type stimulants (i.e., ecstasy [MDMA] and methamphetamine) on aggression. METHOD: Analysis of longitudinal data from a population-based sample of Australian young adult amphetamine-type stimulant users (n=248) to examine: (a) prevalence and timing of simultaneous alcohol and amphetamine-type stimulant use and (b) predictors of ecstasy- and methamphetamine-related aggression and hostility...
February 2, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28181385/hemodynamic-profile-and-behavioral-characteristics-during-induction-of-anesthesia-in-pediatric-patients-with-attention-deficit-hyperactivity-disorder
#17
Richard S Cartabuke, Joseph D Tobias, Julie Rice, Dmitry Tumin
AIM: There is no consensus regarding the administration of stimulant drugs preoperatively, particularly in pediatric patients diagnosed with ADHD. The primary objective of the current study was to assess differences in blood pressure and heart rate before and after induction of anesthesia between patients on chronic amphetamine or methylphenidate therapy who receive their normal dose preoperatively compared to patients in whom the prescribed medication was withheld. Secondary objectives were to assess the anxiety level during the induction of anesthesia and the effect of premedication with midazolam...
February 8, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28170051/factors-associated-with-substance-use-among-spanish-military-personnel-involved-in-bosnia-herzegovina
#18
Cristina Vargas Pecino, Enrique Castellano, Humberto Trujillo
The use of both legal and illegal drugs has rarely been investigated among the Spanish military population involved in multinational military operations. The aim of the current study was to examine the consumption of drugs by Spanish military personnel in Bosnia-Herzegovina, and the variables associated with such substance use. A total of 605 military personnel participated in the cross-sectional study. The participants' mean age was 25.9 years (SD = 5.9), and 93.9% of the sample was male. The majority of the participants were enlisted personnel (83...
January 12, 2017: Adicciones
https://www.readbyqxmd.com/read/28167616/towards-trans-diagnostic-mechanisms-in-psychiatry-neurobehavioral-profile-of-rats-with-a-loss-of-function-point-mutation-in-the-dopamine-transporter-gene
#19
Valentina Vengeliene, Anton Bespalov, Martin Roßmanith, Sandra Horschitz, Stefan Berger, Ana L Relo, Hamid R Noori, Peggy Schneider, Thomas Enkel, Dusan Bartsch, Miriam Schneider, Berthold Behl, Anita C Hansson, Patrick Schloss, Rainer Spanagel
The Research Domain Criteria (RDoC) matrix has been developed to reorient psychiatric research towards measurable behavioral dimensions and underlying mechanisms. Here we used a new genetic rat model with a loss of function point mutation in the dopamine transporter (DAT) gene (Slc6a3_N157K) to systematically study the RDoC matrix (www.nimh.nih.gov/research-priorities/rdoc/constructs/rdoc-matrix.shtml). First, we examined the impact of the Slc6a3_N157K mutation on monoaminergic signaling. We then performed behavioral tests representing each of the five RDoC domains - negative and positive valence systems, cognitive, social, and in arousal/regulatory systems...
February 6, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28164142/importance-of-substrate-coupled-proton-antiport-by-the-vesicular-monoamine-transporter-in-the-actions-of-amphetamines-in-drosophila-brain
#20
Takato Hiranita, Zachary Freyberg
No abstract text is available yet for this article.
December 2016: Journal of Alcoholism and Drug Dependence
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