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David Nutt

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https://www.readbyqxmd.com/read/29025134/cannabis-dampens-the-effects-of-music-in-brain-regions-sensitive-to-reward-and-emotion
#1
Tom P Freeman, Rebecca A Pope, Matthew B Wall, James A Bisby, Maartje Luijten, Chandni Hindocha, Claire Mokrysz, Will Lawn, Abigail Moss, Michael A P Bloomfield, Celia J A Morgan, David J Nutt, H Valerie Curran
Background: Despite the current shift towards permissive cannabis policies, few studies have investigated the pleasurable effects users seek. Here we investigate the effects of cannabis on listening to music - a rewarding activity that frequently occurs in the context of recreational cannabis use. We additionally tested how these effects are influenced by cannabidiol (CBD), which may offset cannabis-related harms. Methods: Across three sessions, sixteen cannabis users inhaled cannabis with CBD, cannabis without CBD, and placebo...
September 2, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29016847/a-point-mutation-in-the-ion-conduction-pore-of-ampa-receptor-gria3-causes-dramatically-perturbed-sleep-patterns-as-well-as-intellectual-disability
#2
Benjamin Davies, Laurence A Brown, Ondrej Cais, Jake Watson, Amber J Clayton, Veronica T Chang, Daniel Biggs, Christopher Preece, Polinka Hernandez-Pliego, Jon Krohn, Amarjit Bhomra, Stephen R F Twigg, Andrew Rimmer, Alexander Kanapin, Arjune Sen, Zenobia Zaiwalla, Gil McVean, Russell Foster, Peter Donnelly, Jenny C Taylor, Edward Blair, David Nutt, A Radu Aricescu, Ingo H Greger, Stuart N Peirson, Jonathan Flint, Hilary C Martin
The discovery of genetic variants influencing sleep patterns can shed light on the physiological processes underlying sleep. As part of a large clinical sequencing project, WGS500, we sequenced a family in which the two male children had severe developmental delay and a dramatically disturbed sleep-wake cycle, with very long wake and sleep durations, reaching up to 106-h awake and 48-h asleep. The most likely causal variant identified was a novel missense variant in the X-linked GRIA3 gene, which has been implicated in intellectual disability...
October 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28867939/biological-markers-of-generalized-anxiety-disorder
#3
Eduard Maron, David Nutt
Generalized anxiety disorder (GAD) is a prevalent and highly disabling mental health condition; however, there is still much to learn with regard to pertinent biomarkers, as well as diagnosis, made more difficult by the marked and common overlap of GAD with affective and anxiety disorders. Recently, intensive research efforts have focused on GAD, applying neuroimaging, genetic, and blood-based approaches toward discovery of pathogenetic and treatment-related biomarkers. In this paper, we review the large amount of available data, and we focus in particular on evidence from neuroimaging, genetic, and neurochemical measurements in GAD in order to better understand potential biomarkers involved in its etiology and treatment...
June 2017: Dialogues in Clinical Neuroscience
https://www.readbyqxmd.com/read/28803249/a-brief-outline-of-the-use-of-new-technologies-for-treating-substance-use-disorders-in-the-european-union
#4
GianLuca Quaglio, Arnt Schellekens, Matthijs Blankers, Eva Hoch, Theodoros Karapiperis, Giovanni Esposito, Helmut Brand, David Nutt, Falk Kiefer
BACKGROUND: Clinicians in the field of drug addiction have started to exploit the growth of Technology-Based Interventions (TBIs). However, there is little information on how health personnel evaluate them. METHODS: Semi-structured interviews were conducted among 20 European experts. RESULTS: All of the interviewees recognised TBIs as a valuable tool to improve the management of substance-use disorders (SUDs). Most interviewees indicated that combining both traditional face-to-face therapist-patient clinic appointment with TBIs is probably the most effective method...
2017: European Addiction Research
https://www.readbyqxmd.com/read/28701746/acute-d3-antagonist-gsk598809-selectively-enhances-neural-response-during-monetary-reward-anticipation-in-drug-and-alcohol-dependence
#5
Anna Murphy, Liam J Nestor, John McGonigle, Louise Paterson, Venkataramana Boyapati, Karen D Ersche, Remy Flechais, Shankar Kuchibatla, Antonio Metastasio, Csaba Orban, Filippo Passetti, Laurence Reed, Dana Smith, John Suckling, Eleanor Taylor, Trevor W Robbins, Anne Lingford-Hughes, David J Nutt, John F W Deakin, Rebecca Elliott
This corrects the article DOI: 10.1038/npp.2016.289.
August 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28654421/correction-traf2-regulates-tnf-and-nf-%C3%AE%C2%BAb-signalling-to-suppress-apoptosis-and-skin-inflammation-independently-of-sphingosine-kinase-1
#6
Nima Etemadi, Michael Chopin, Holly Anderton, Maria C Tanzer, James A Rickard, Waruni Abeysekera, Cathrine Hall, Sukhdeep K Spall, Bing Wang, Yuquan Xiong, Timothy Hla, Stuart M Pitson, Claudine S Bonder, Wendy Wei-Lynn Wong, Matthias Ernst, Gordon K Smyth, David L Vaux, Stephen L Nutt, Ueli Nachbur, John Silke
No abstract text is available yet for this article.
June 27, 2017: ELife
https://www.readbyqxmd.com/read/28631527/buprenorphine-naloxone-versus-methadone-and-lofexidine-in-community-stabilisation-and-detoxification-a-randomised-controlled-trial-of-low-dose-short-term-opiate-dependent-individuals
#7
Fergus D Law, Alison M Diaper, Jan K Melichar, Simon Coulton, David J Nutt, Judy S Myles
Buprenorphine/naloxone, methadone and lofexidine are medications with utility in the treatment of opiate withdrawal. We report the first randomised controlled trial to compare the effects of these two medications on withdrawal symptoms and outcome during opiate induction/stabilisation and detoxification. A double-blind randomised controlled trial was conducted in an outpatient satellite clinic of a specialist drug service. Eighty opiate dependent individuals meeting DSM-IV criteria for opiate dependence, using ⩽ ½ g heroin smoked/chased or ¼ g heroin injected or ⩽ 30mg methadone, with ⩽ 3 years of opioid dependency, underwent a short-term opiate treatment programme involving induction/stabilisation on methadone 30mg or buprenorphine/naloxone 4mg/1mg, followed by detoxification (where the methadone group was assisted by lofexidine)...
June 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28531767/the-standard-joint-unit
#8
Cristina Casajuana Kögel, María Mercedes Balcells-Olivero, Hugo López-Pelayo, Laia Miquel, Lídia Teixidó, Joan Colom, David John Nutt, Jürgen Rehm, Antoni Gual
OBJECTIVE: Reliable data on cannabis quantities is required to improve assessment of cannabis consumption for epidemiological analysis and clinical assessment, consequently a Standard Joint Unit (SJU) based on quantity of 9-Tetrahydrocannabinol (9-THC) has been established. METHODOLOGY: Naturalistic study of a convenience sample recruited from February 2015-June 2016 in universities, leisure spaces, mental health services and cannabis clubs in Barcelona. Adults, reporting cannabis use in the last 60 days, without cognitive impairment or language barriers, answered a questionnaire on cannabis use and were asked to donate a joint to further determine their 9-THC and Cannabidiol (CBD) content...
May 16, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28496172/acute-d3-antagonist-gsk598809-selectively-enhances-neural-response-during-monetary-reward-anticipation-in-drug-and-alcohol-dependence
#9
Anna Murphy, Liam J Nestor, John McGonigle, Louise Paterson, Venkataramana Boyapati, Karen D Ersche, Remy Flechais, Shankar Kuchibatla, Antonio Metastasio, Csaba Orban, Filippo Passetti, Laurence Reed, Dana Smith, John Suckling, Eleanor Taylor, Trevor Wr Obbins, Anne Lingford-Hughes, David J Nutt, John Fw Deakin, Rebecca Elliott
No abstract text is available yet for this article.
June 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28395988/ketamine-treatment-for-depression-opportunities-for-clinical-innovation-and-ethical-foresight
#10
REVIEW
Ilina Singh, Celia Morgan, Valerie Curran, David Nutt, Anne Schlag, Rupert McShane
We present a review and analysis of the ethical considerations in off-label ketamine use for severe, treatment-resistant depression. The analysis of ethical considerations is contextualised in an overview of the evidence for ketamine use in depression, and a review of the drug's safety profile. We find that, based on current evidence, ketamine use for severe, treatment-resistant depression does not violate ethical principles; however, clinicians and professional bodies must take steps to ensure that guidelines for good practice are enacted, that all experimental and trial data are made available through national registries, and that the risk potential of ketamine treatment continues to be monitored and modelled...
May 2017: Lancet Psychiatry
https://www.readbyqxmd.com/read/28382966/the-pu-1-target-gene-zbtb11-regulates-neutrophil-development-through-its-integrase-like-hhcc-zinc-finger
#11
Maria-Cristina Keightley, Duncan P Carradice, Judith E Layton, Luke Pase, Julien Y Bertrand, Johannes G Wittig, Aleksandar Dakic, Andrew P Badrock, Nicholas J Cole, David Traver, Stephen L Nutt, Julia McCoey, Ashley M Buckle, Joan K Heath, Graham J Lieschke
In response to infection and injury, the neutrophil population rapidly expands and then quickly re-establishes the basal state when inflammation resolves. The exact pathways governing neutrophil/macrophage lineage outputs from a common granulocyte-macrophage progenitor are still not completely understood. From a forward genetic screen in zebrafish, we identify the transcriptional repressor, ZBTB11, as critical for basal and emergency granulopoiesis. ZBTB11 sits in a pathway directly downstream of master myeloid regulators including PU...
April 6, 2017: Nature Communications
https://www.readbyqxmd.com/read/28247526/naltrexone-ameliorates-functional-network-abnormalities-in-alcohol-dependent-individuals
#12
Laurel S Morris, Kwangyeol Baek, Roger Tait, Rebecca Elliott, Karen D Ersche, Remy Flechais, John McGonigle, Anna Murphy, Liam J Nestor, Csaba Orban, Filippo Passetti, Louise M Paterson, Ilan Rabiner, Laurence Reed, Dana Smith, John Suckling, Eleanor M Taylor, Edward T Bullmore, Anne R Lingford-Hughes, Bill Deakin, David J Nutt, Barbara J Sahakian, Trevor W Robbins, Valerie Voon
Naltrexone, an opioid receptor antagonist, is commonly used as a relapse prevention medication in alcohol and opiate addiction, but its efficacy and the mechanisms underpinning its clinical usefulness are not well characterized. In the current study, we examined the effects of 50-mg naltrexone compared with placebo on neural network changes associated with substance dependence in 21 alcohol and 36 poly-drug-dependent individuals compared with 36 healthy volunteers. Graph theoretic and network-based statistical analysis of resting-state functional magnetic resonance imaging (MRI) data revealed that alcohol-dependent subjects had reduced functional connectivity of a dispersed network compared with both poly-drug-dependent and healthy subjects...
February 28, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28224686/addiction-research-and-theory-a-commentary-on-the-surgeon-general-s-report-on-alcohol-drugs-and-health
#13
Aldo Badiani, Kent C Berridge, Markus Heilig, David J Nutt, Terry E Robinson
The Office of the Surgeon General recently produced its first Report on the consequences of alcohol and drug abuse on health, making several very laudable policy recommendations. The Report also emphasizes the importance of adequate funding for biomedical research, which is good news for both researchers and patients. However, the Report is marred by a biased viewpoint on the psychology and neurobiology of drug addiction. We highlight here four controversial issues that were depicted as facts in the Report, thereby potentially misleading non-expert readers about the current state-of-the-art understanding of the psychology and neurobiology of drug addiction...
February 21, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28216062/nalmefene-reduces-reward-anticipation-in-alcohol-dependence-an-experimental-functional-magnetic-resonance-imaging-study
#14
Darren R Quelch, Inge Mick, John McGonigle, Anna C Ramos, Remy S A Flechais, Mark Bolstridge, Eugenii Rabiner, Matthew B Wall, Rexford D Newbould, Björn Steiniger-Brach, Franz van den Berg, Malcolm Boyce, Dorrit Østergaard Nilausen, Lasse Breuning Sluth, Didier Meulien, Christoph von der Goltz, David Nutt, Anne Lingford-Hughes
BACKGROUND: Nalmefene is a µ and δ opioid receptor antagonist, κ opioid receptor partial agonist that has recently been approved in Europe for treating alcohol dependence. It offers a treatment approach for alcohol-dependent individuals with "high-risk drinking levels" to reduce their alcohol consumption. However, the neurobiological mechanism underpinning its effects on alcohol consumption remains to be determined. Using a randomized, double-blind, placebo-controlled, within-subject crossover design we aimed to determine the effect of a single dose of nalmefene on striatal blood oxygen level-dependent (BOLD) signal change during anticipation of monetary reward using the monetary incentive delay task following alcohol challenge...
June 1, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28195139/altered-insula-connectivity-under-mdma
#15
Ishan C Walpola, Timothy Nest, Leor Roseman, David Erritzoe, Amanda Feilding, David J Nutt, Robin L Carhart-Harris
Recent work with noninvasive human brain imaging has started to investigate the effects of 3,4-methylenedioxymethamphetamine (MDMA) on large-scale patterns of brain activity. MDMA, a potent monoamine-releaser with particularly pronounced serotonin- releasing properties, has unique subjective effects that include: marked positive mood, pleasant/unusual bodily sensations and pro-social, empathic feelings. However, the neurobiological basis for these effects is not properly understood, and the present analysis sought to address this knowledge gap...
October 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28167221/toxicological-evaluation-of-5-methoxy-2-aminoindane-meai-binge-mitigating-agent-in-development
#16
Jakob A Shimshoni, Ilan Winkler, Nir Edery, Ezekiel Golan, René van Wettum, David Nutt
5-Methoxy-2-aminoindane (MEAI) is a psychoactive compound of the aminoindane class, which in recent years has been recreationally used by many people, who reported of a mild euphoric, alcohol-like tipsy experience and reduced desire to consume alcoholic beverages. In the light of these observations it was decided to progress MEAI through a preliminary drug development route and evaluate the acute and subacute toxicity of MEAI administrated orally to Sprague Dawley rats, as well as to determine potential in-vitro cytotoxic and mutagenic effects using state-of-the-art protocols...
March 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28092199/book-reviewsreviews
#17
Márta Virág, Kollár Tamás
Michael S. Gazzaniga, Richard B. Ivry and George R. Mangun Cognitive neuroscience: The biology of the mind (International student edition) (4th ed.) Trevor W. Robbins, Barry J. Everitt and David J. Nutt The neurobiology of addiction Oxford, UK: Oxford University Press, 2010, 318 pp. ISBN: 978-0-1995-6215-2.
March 2016: Journal of Behavioral Addictions
https://www.readbyqxmd.com/read/28042871/acute-d3-antagonist-gsk598809-selectively-enhances-neural-response-during-monetary-reward-anticipation-in-drug-and-alcohol-dependence
#18
Anna Murphy, Liam J Nestor, John McGonigle, Louise Paterson, Venkataramana Boyapati, Karen D Ersche, Remy Flechais, Shankar Kuchibatla, Antonio Metastasio, Csaba Orban, Filippo Passetti, Laurence Reed, Dana Smith, John Suckling, Eleanor Taylor, Trevor W Robbins, Anne Lingford-Hughes, David J Nutt, John Fw Deakin, Rebecca Elliott
Evidence suggests that disturbances in neurobiological mechanisms of reward and inhibitory control maintain addiction and provoke relapse during abstinence. Abnormalities within the dopamine system may contribute to these disturbances and pharmacologically targeting the D3 dopamine receptor (DRD3) is therefore of significant clinical interest. We used functional magnetic resonance imaging to investigate the acute effects of the DRD3 antagonist GSK598809 on anticipatory reward processing, using the monetary incentive delay task (MIDT), and response inhibition using the Go/No-Go task (GNGT)...
April 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27955830/inverse-agonists-what-do-they-mean-for-psychiatry
#19
David Nutt, Stephen Stahl, Pierre Blier, Filippo Drago, Joseph Zohar, Sue Wilson
The nomenclature of drugs is a critical aspect of science, since it can direct research and optimize treatment choices. Traditionally drugs acting on CNS receptors have been classified as either agonists or antagonists. Recently a new class of ligand, the inverse agonist, has been identified in some receptor systems. Inverse agonists have opposite actions to those of agonists but the effects of both of these can be blocked by antagonists. Pimavanserin is a new 5-HT2A receptor acting drug that has been given market authorization for psychosis in Parkinson׳s disease...
January 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27909163/psilocybin-for-anxiety-and-depression-in-cancer-care-lessons-from-the-past-and-prospects-for-the-future
#20
EDITORIAL
David Nutt
No abstract text is available yet for this article.
December 2016: Journal of Psychopharmacology
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