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Journal of Psychopharmacology

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https://www.readbyqxmd.com/read/27899689/herbal-medicine-for-management-of-the-behavioural-and-psychological-symptoms-of-dementia-bpsd-a-systematic-review-and-meta-analysis
#1
REVIEW
Anna J Hyde, Brian H May, Lin Dong, Mei Feng, Shaonan Liu, Xinfeng Guo, Anthony Lin Zhang, Chuanjian Lu, Charlie Changli Xue
Management of the behavioural and psychological symptoms of dementia remains a challenge worldwide. Herbal medicines may play a role in the development of new interventions. To determine effects of herbal medicines for management of the behavioural and psychological symptoms of dementia, meta-analysis was conducted of 31 controlled trials (3613 participants). Frequently tested herbal medicines were the Ginkgo biloba leaf extract EGb 761 (seven studies) and the multi-ingredient formula Yokukansan (eight studies)...
November 29, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27856684/psychedelics-in-the-treatment-of-unipolar-mood-disorders-a-systematic-review
#2
REVIEW
James Jh Rucker, Luke A Jelen, Sarah Flynn, Kyle D Frowde, Allan H Young
Unipolar mood disorders, including major depressive disorder and persistent depressive disorder (dysthymia), confer high rates of disability and mortality and a very high socioeconomic burden. Current treatment is suboptimal in most cases and there is little of note in the pharmaceutical development pipeline. The psychedelic drugs, including lysergic acid diethylamide and psilocybin, were used extensively in the treatment of mood disorders, and other psychiatric conditions, before their prohibition in the late 1960s...
November 17, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27856683/the-challenging-experience-questionnaire-characterization-of-challenging-experiences-with-psilocybin-mushrooms
#3
Frederick S Barrett, Matthew P Bradstreet, Jeannie-Marie S Leoutsakos, Matthew W Johnson, Roland R Griffiths
Acute adverse psychological reactions to classic hallucinogens ("bad trips" or "challenging experiences"), while usually benign with proper screening, preparation, and support in controlled settings, remain a safety concern in uncontrolled settings (such as illicit use contexts). Anecdotal and case reports suggest potential adverse acute symptoms including affective (panic, depressed mood), cognitive (confusion, feelings of losing sanity), and somatic (nausea, heart palpitation) symptoms. Responses to items from several hallucinogen-sensitive questionnaires (Hallucinogen Rating Scale, the States of Consciousness Questionnaire, and the Five-Dimensional Altered States of Consciousness questionnaire) in an Internet survey of challenging experiences with the classic hallucinogen psilocybin were used to construct and validate a Challenging Experience Questionnaire...
November 17, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27852960/set-and-setting-psychedelics-and-the-placebo-response-an-extra-pharmacological-perspective-on-psychopharmacology
#4
REVIEW
Ido Hartogsohn
Placebo response theory and set and setting theory are two fields which examine how non-biological factors shape the response to therapy. Both consider factors such as expectancy, preparation and beliefs to be crucial for understanding the extra-pharmacological processes which shape the response to drugs. Yet there are also fundamental differences between the two theories. Set and setting concerns itself with response to psychoactive drugs only; placebo theory relates to all therapeutic interventions. Placebo theory is aimed at medical professionals; set and setting theory is aimed at professionals and drug users alike...
November 16, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27903793/the-serotonin-5-ht2c-receptor-and-the-non-addictive-nature-of-classic-hallucinogens
#5
REVIEW
Clinton E Canal, Kevin S Murnane
Classic hallucinogens share pharmacology as serotonin 5-HT2A, 5-HT2B, and 5-HT2C receptor agonists. Unique among most other Schedule 1 drugs, they are generally non-addictive and can be effective tools in the treatment of addiction. Mechanisms underlying these attributes are largely unknown. However, many preclinical studies show that 5-HT2C agonists counteract the addictive effects of drugs from several classes, suggesting this pharmacological property of classic hallucinogens may be significant. Drawing from a comprehensive analysis of preclinical behavior, neuroanatomy, and neurochemistry studies, this review builds rationale for this hypothesis, and also proposes a testable, neurobiological framework...
November 15, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27852961/effect-of-antipsychotic-pharmacotherapy-on-clinical-outcomes-of-intermittent-theta-burst-stimulation-for-refractory-depression
#6
Laura Schulze, Gary Remington, Peter Giacobbe, Sidney H Kennedy, Daniel M Blumberger, Zafiris J Daskalakis, Jonathan Downar
Theta-burst stimulation is an emerging protocol for repetitive transcranial magnetic stimulation that takes 1-3 min to administer, yet offers equal/superior potency to conventional protocols lasting 30-60 min. However, preclinical evidence suggests that D2 receptor blockade may abolish the acute effects of theta-burst stimulation on synaptic facilitation or inhibition. As many patients presenting for repetitive transcranial magnetic stimulation are taking antipsychotic medications as augmentation for treatment-resistant depression, this finding is potentially concerning for the implementation of theta-burst stimulation in clinical settings...
November 9, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27856682/capturing-schizophrenia-like-prodromal-symptoms-in-a-spinocerebellar-ataxia-17-transgenic-rat
#7
Davide Amato, Fabio Canneva, Huu Phuc Nguyen, Peter Bauer, Olaf Riess, Stephan von Hörsten, Christian P Müller
RATIONALE: The polyglutamine disease spinocerebellar ataxia type 17 (SCA17) is a neurodegenerative disease leading to severe neurological symptoms during development. Additionally, patients affected by SCA17 display psychosis earlier than their motor disorders. OBJECTIVE: Here the putative psychotic phenotype and endophenotype of transgenic SCA17 rats was examined. METHODS: The expression of schizophrenia-like symptoms was evaluated over a longitudinal period before and after the onset of neurological symptoms in SCA17...
November 8, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27756833/the-frontal-cortex-as-a-network-hub-controlling-mood-and-cognition-probing-its-neurochemical-substrates-for-improved-therapy-of-psychiatric-and-neurological-disorders
#8
Mark J Millan, Jean-Michel Rivet, Alain Gobert
The highly-interconnected and neurochemically-rich frontal cortex plays a crucial role in the regulation of mood and cognition, domains disrupted in depression and other central nervous system disorders, and it is an important site of action for their therapeutic control. For improving our understanding of the function and dysfunction of the frontal cortex, and for identifying improved treatments, quantification of extracellular pools of neuromodulators by microdialysis in freely-moving rodents has proven indispensable...
October 17, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27729563/swertisin-ameliorates-pre-pulse-inhibition-deficits-and-cognitive-impairment-induced-by-mk-801-in-mice
#9
Hee Kyong Oh, Se Jin Jeon, Sunhee Lee, Hyung Eun Lee, Eunji Kim, Se Jin Park, Ha Neul Kim, Won Yong Jung, Jae Hoon Cheong, Dae Sik Jang, Jong Hoon Ryu
Swertisin, a plant-derived C-glucosylflavone, is known to have antidiabetic, anti-inflammatory and antioxidant effects. In the present study, we investigated in mice the effects of swertisin on glutamatergic dysfunction induced by dizocilpine (MK-801), a non-competitive N-methyl-D-aspartate receptor antagonist. In the Acoustic Startle Response test, their MK-801-induced (given 0.2 mg/kg i.p.) pre-pulse inhibition deficit was significantly attenuated by the administration of swertisin (30 mg/kg p.o.). In the Novel Object Recognition Test, the recognition memory impairments that were induced by MK-801 (0...
October 11, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27703043/low-anxiety-rats-are-more-sensitive-to-amphetamine-in-comparison-to-high-anxiety-rats
#10
Małgorzata H Lehner, Ewa Taracha, Ewelina Kaniuga, Aleksandra Wisłowska-Stanek, Marek Gryz, Alicja Sobolewska, Danuta Turzyńska, Anna Skórzewska, Adam Płaźnik
This study utilised the two injection protocol of sensitisation (TIPS) and the conditioned place preference test to validate and extend previous findings on the effects of amphetamine on positive reinforcement-related 50 kHz ultrasonic vocalisation (USV) in rats. We also examined changes in the expression of c-Fos and the NMDA receptor 2B (GluN2B) subunit, markers of neuronal activity and plasticity, in brain regions of rats in response to TIPS. We used low anxiety-responsive (LR) and high anxiety-responsive (HR) rats, which are known to exhibit different fear-conditioned response strengths, different susceptibilities to amphetamine in the TIPS procedure and different amphetamine-dependent 50 kHz USV responses...
October 4, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27703042/the-iccam-platform-study-an-experimental-medicine-platform-for-evaluating-new-drugs-for-relapse-prevention-in-addiction-part-b-fmri-description
#11
John McGonigle, Anna Murphy, Louise M Paterson, Laurence J Reed, Liam Nestor, Jonathan Nash, Rebecca Elliott, Karen D Ersche, Remy Sa Flechais, Rexford Newbould, Csaba Orban, Dana G Smith, Eleanor M Taylor, Adam D Waldman, Trevor W Robbins, Jf William Deakin, David J Nutt, Anne R Lingford-Hughes, John Suckling
OBJECTIVES: We aimed to set up a robust multi-centre clinical fMRI and neuropsychological platform to investigate the neuropharmacology of brain processes relevant to addiction - reward, impulsivity and emotional reactivity. Here we provide an overview of the fMRI battery, carried out across three centres, characterizing neuronal response to the tasks, along with exploring inter-centre differences in healthy participants. EXPERIMENTAL DESIGN: Three fMRI tasks were used: monetary incentive delay to probe reward sensitivity, go/no-go to probe impulsivity and an evocative images task to probe emotional reactivity...
October 4, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27678089/the-effects-of-medication-and-current-mood-upon-facial-emotion-recognition-findings-from-a-large-bipolar-disorder-cohort-study
#12
Amy C Bilderbeck, Lauren Z Atkinson, John R Geddes, Guy M Goodwin, Catherine J Harmer
OBJECTIVES: Emotional processing abnormalities have been implicated in bipolar disorder (BD) but studies are typically small and uncontrolled. Here, facial expression recognition was explored in a large and naturalistically recruited cohort of BD patients. METHODS: 271 patients with BD completed the facial expression recognition task. The effects of current medication together with the influence of current mood state and diagnostic subtype were assessed whilst controlling for the effects of demographic variables...
September 26, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27678087/in-vivo-and-in-vitro-effects-of-vortioxetine-on-molecules-associated-with-neuroplasticity
#13
Pirathiv Kugathasan, Jessica Waller, Ligia Westrich, Aicha Abdourahman, Joseph A Tamm, Alan L Pehrson, Elena Dale, Maria Gulinello, Connie Sanchez, Yan Li
Neuroplasticity is fundamental for brain functions, abnormal changes of which are associated with mood disorders and cognitive impairment. Neuroplasticity can be affected by neuroactive medications and by aging. Vortioxetine, a multimodal antidepressant, has shown positive effects on cognitive functions in both pre-clinical and clinical studies. In rodent studies, vortioxetine increases glutamate neurotransmission, promotes dendritic branching and spine maturation, and elevates hippocampal expression of the activity-regulated cytoskeleton-associated protein (Arc/Arg3...
September 26, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27649779/beyond-associations-do-implicit-beliefs-play-a-role-in-smoking-addiction
#14
Helen Tibboel, Jan De Houwer, Nicolas Dirix, Adriaan Spruyt
BACKGROUND AND OBJECTIVES: Influential dual-system models of addiction suggest that an automatic system that is associative and habitual promotes drug use, whereas a controlled system that is propositional and rational inhibits drug use. It is assumed that effects on the Implicit Association Test (IAT) reflect the automatic processes that guide drug seeking. However, results have been inconsistent, challenging: (1) the validity of addiction IATs; and (2) the assumption that the automatic system contains only simple associative information...
September 20, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27649778/effects-of-a-single-oral-60-mg-caffeine-dose-on-attention-in-healthy-adult-subjects
#15
Micha Mm Wilhelmus, Justin L Hay, Rob Gja Zuiker, Pieter Okkerse, Christelle Perdrieu, Julien Sauser, Maurice Beaumont, Jeroen Schmitt, Joop Ma van Gerven, Beata Y Silber
Caffeine induces positive effects on sustained attention, although studies assessing the acute effects of low caffeine dose (<75 mg) on sustained attention are limited and use short-term tests. Therefore, we investigated the acute effects of a 60 mg dose of caffeine on sustained attention in tests lasting up to 45 minutes using 82 low or non-caffeine-consuming healthy male (n=41) and female (n=41) adults aged between 40 and 60 years. Vigilance was measured using Mackworth Clock test, Rapid Visual Information Processing Test, adaptive tracking test, saccadic eye movement and attention switch test...
September 20, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27649777/modafinil-alters-decision-making-based-on-feedback-history-a-randomized-placebo-controlled-double-blind-study-in-humans
#16
Christian Bellebaum, Lars Kuchinke, Patrik Roser
Modafinil is becoming increasingly popular as a cognitive enhancer. Research on the effects of modafinil on cognitive function have yielded mixed results, with negative findings for simple memory and attention tasks and enhancing effects for more complex tasks. In the present study we examined whether modafinil, due to its known effect on the dopamine level in the striatum, alters feedback-related choice behaviour. We applied a task that separately tests the choice of previously rewarded behaviours (approach) and avoidance of previously punished behaviours...
September 20, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27649776/pharmacological-interactions-between-brivaracetam-and-ethanol-in-healthy-males
#17
Annelieke C Kruithof, Shikiko Watanabe, Pierre Am Peeters, Marieke L de Kam, Rob Gja Zuiker, Jasper Stevens, Joop Ma van Gerven, Armel Stockis
This double-blind, randomized, three-way crossover study explored the potential pharmacokinetic and pharmacodynamic interactions between ethanol and brivaracetam in 18 healthy males, as required for the development of CNS-active drugs. Subjects received (A) ethanol+brivaracetam, (B) ethanol placebo+brivaracetam and (C) ethanol+brivaracetam placebo. Ethanol was infused as a 5.5-hour intravenous clamp with the first 0.5-hour as loading phase to a target level of 0.6 g/L, and brivaracetam was orally administered as a single 200 mg dose...
September 20, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27649775/altered-reward-expectancy-in-individuals-with-recent-methamphetamine-dependence
#18
Amanda Bischoff-Grethe, Colm G Connolly, Stephan J Jordan, Gregory G Brown, Martin P Paulus, Susan F Tapert, Robert K Heaton, Steven P Woods, Igor Grant
BACKGROUND: Chronic methamphetamine use may lead to changes in reward-related function of the ventral striatum and caudate nucleus. Whether methamphetamine-dependent individuals show heightened reactivity to positively valenced stimuli (i.e. positive reinforcement mechanisms), or an exaggerated response to negatively valenced stimuli (i.e. driven by negative reinforcement mechanisms) remains unclear. This study investigated neural functioning of expectancy and receipt for gains and losses in adults with (METH+) and without (METH-) histories of methamphetamine dependence...
September 20, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27649774/a-case-control-field-study-on-the-relationships-among-type-2-diabetes-sleepiness-and-habitual-caffeine-intake
#19
Emily Urry, Alexander Jetter, Sebastian C Holst, Wolfgang Berger, Giatgen A Spinas, Wolfgang Langhans, Hans-Peter Landolt
OBJECTIVES: The purpose of this study was to examine the possible links between type 2 diabetes, daytime sleepiness, sleep quality and caffeine consumption. METHODS: In this case-control field study, comparing type 2 diabetic (n=134) and non-type 2 diabetic (n=230) participants, subjects completed detailed and validated questionnaires to assess demographic status, health, daytime sleepiness, sleep quality and timing, diurnal preference, mistimed circadian rhythms and habitual caffeine intake...
September 20, 2016: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/27649773/subanesthetic-ketamine-decreases-the-incentive-motivational-value-of-reward-related-cues
#20
Christopher J Fitzpatrick, Jonathan D Morrow
The attribution of incentive-motivational value to reward-related cues contributes to cue-induced craving and relapse in addicted patients. Recently, it was demonstrated that subanesthetic ketamine increases motivation to quit and decreases cue-induced craving in cocaine-dependent individuals. Although the underlying mechanism of this effect is currently unknown, one possibility is that subanesthetic ketamine decreases the incentive-motivational value of reward-related cues. In the present study, we used a Pavlovian conditioned approach procedure to identify sign-trackers, rats that attribute incentive-motivational value to reward-related cues, and goal-trackers, rats that assign only predictive value to reward-related cues...
September 20, 2016: Journal of Psychopharmacology
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