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European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology

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https://www.readbyqxmd.com/read/28342679/pharmacogenomic-aspects-of-bipolar-disorder-an-update
#1
M Budde, D Degner, J Brockmöller, T G Schulze
The hopes for readily implementable precision medicine are high. For many complex disorders, such as bipolar disorder, these hopes critically hinge on tangible successes in pharmacogenetics of treatment response or susceptibility to adverse events. In this article, we review the current state of pharmacogenomics of bipolar disorder including latest results from candidate genes and genome-wide association studies. The majority of studies focus on response to lithium treatment. Although a host of genes has been studied, hardly any replicated findings have emerged so far...
March 22, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28336088/trends-in-adhd-medication-use-in-children-and-adolescents-in-five-western-countries-2005-2012
#2
Christian J Bachmann, Linda P Wijlaars, Luuk J Kalverdijk, Mehmet Burcu, Gerd Glaeske, Catharina C M Schuiling-Veninga, Falk Hoffmann, Lise Aagaard, Julie M Zito
Over the last two decades, the use of ADHD medication in US youth has markedly increased. However, less is known about ADHD medication use among European children and adolescents. A repeated cross-sectional design was applied to national or regional data extracts from Denmark, Germany, the Netherlands, the United Kingdom (UK) and the United States (US) for calendar years 2005/2006-2012. The prevalence of ADHD medication use was assessed, stratified by age and sex. Furthermore, the most commonly prescribed ADHD medications were assessed...
March 20, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28318897/efficacy-of-off-label-augmentation-in-unipolar-depression-a-systematic-review-of-the-evidence
#3
REVIEW
Julia Kleeblatt, Felix Betzler, Laura L Kilarski, Tom Bschor, Stephan Köhler
Treatment of unipolar depression with currently available antidepressants is still unsatisfactory. Augmentation with lithium or second generation antipsychotics is an established practice in non-responders to antidepressant monotherapy, but is also associated with a substantial non-response rate and with non-tolerance. Based on a systematic review of the literature, including meta-analyses, randomized controlled trials (RCTs), non-randomized comparative studies and case studies, off-label augmentation agents (administered in addition to an antidepressant, without FDA approval for treatment of MDD) were identified and evaluated regarding their efficacy using levels of evidence...
March 16, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28318898/distribution-and-levels-of-5-ht1b-receptors-in-anterior-cingulate-cortex-of-patients-with-bipolar-disorder-major-depressive-disorder-and-schizophrenia-an-autoradiography-study
#4
Emma R Veldman, Marie M Svedberg, Per Svenningsson, Johan Lundberg
The serotonin 1B receptor has recently received more interest as a possible new target for pharmacological treatment of psychiatric disorders. However, the exact mechanisms of action remain unclear. This study aimed to examine the binding distribution and levels of the serotonin 1B receptor in-depth in the anterior cingulate cortex (ACC) and provide more insight in its functional role in bipolar disorder (BD), major depressive disorder (MDD) and schizophrenia (SZ). Serotonin 1B receptor binding distribution was visualized with high resolution autoradiography (ARG), using the radioligand [(3)H]AZ10419369, in postmortem ACC tissue from patients diagnosed with BD (n=14), MDD (n=12), SZ (n=13) and healthy subjects (n=13)...
March 15, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28298261/efficacy-and-safety-of-agomelatine-10-or-25-mg-day-in-non-depressed-out-patients-with-generalized-anxiety-disorder-a-12-week-double-blind-placebo-controlled-study
#5
Dan J Stein, Antti Ahokas, Marek Jarema, Alla S Avedisova, Livia Vavrusova, Oleg Chaban, Céline Gruget, Valérie Olivier, Françoise Picarel-Blanchot, Christian de Bodinat
Agomelatine is efficacious in reducing symptoms and preventing relapse in placebo-controlled trials in generalised anxiety disorder (GAD). Nevertheless, fixed dose studies of agomelatine in GAD have not been undertaken. To determine the minimally effective optimal dose of agomelatine in GAD, the efficacy of two doses of agomelatine (10 and 25mg/day) was investigated in a 12-week, placebo-controlled, double-blind, international study in patients with a primary diagnosis of GAD. The primary outcome measure was the Hamilton Anxiety scale (HAM-A)...
March 12, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28291572/noradrenaline-transporter-blockade-increases-fronto-parietal-functional-connectivity-relevant-for-working-memory
#6
Dennis Hernaus, Marta Ma Casales Santa, Jan Stefan Offermann, Thérèse Van Amelsvoort
Experimental animal work has demonstrated that dopamine and noradrenaline play an essential role in modulating prefrontal cortex-mediated networks underlying working memory performance. Studies of functional connectivity have been instrumental in extending such notions to humans but, so far, have almost exclusively focussed on pharmacological agents with a predominant dopaminergic mechanism of action. Here, we investigate the effect of a single dose of atomoxetine 60mg, a noradrenaline transporter inhibitor, on working memory performance and associated functional connectivity during an n-back task in 19 healthy male volunteers...
March 10, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28284777/social-cognition-in-first-degree-relatives-of-patients-with-bipolar-disorder-a-meta-analysis
#7
REVIEW
Emre Bora, Ayşegül Özerdem
Cognitive impairment is evident euthymic patients with bipolar disorder (BP) and in their first-degree relatives (BP-Rel). Increasing evidence suggests that BP is also associated with social cognitive impairment. It is important to establish whether social cognitive impairment is also evident in BP-Rel. A novel meta-analysis of theory of mind (ToM) and facial emotion recognition in BP-Rel including 16 studies (728 first-degree relatives of patients with BP and 865 healthy controls) was conducted. ToM (d=0.34, CI=0...
March 8, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28284776/neural-underpinnings-of-prosexual-effects-induced-by-gamma-hydroxybutyrate-in-healthy-male-humans
#8
Oliver G Bosch, Michael M Havranek, Andrea Baumberger, Katrin H Preller, Robin von Rotz, Marcus Herdener, Rainer Kraehenmann, Philipp Staempfli, Milan Scheidegger, Tim Klucken, Erich Seifritz, Boris B Quednow
Gamma-hydroxybutyrate (GHB) is a GHB-/GABAB-receptor agonist currently used as treatment for narcolepsy but also as a drug of abuse. Non-medical GHB users have repeatedly reported prosexual effects including libido-enhancement and lowering of attractiveness standards for partner selection. Here, we examined the putative prosexual effects of oral GHB in healthy males in two experiments both employing randomized, placebo-controlled, double-blind, balanced, and cross-over study designs. In experiment I, subjective effects of 20 and 35mg/kg GHB vs...
March 8, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28283227/clozapine-as-the-most-efficacious-antipsychotic-for-activating-erk-1-2-kinases-role-of-5-ht2a-receptor-agonism
#9
Stefano Aringhieri, Shivakumar Kolachalam, Claudio Gerace, Marco Carli, Valeria Verdesca, Maria Giulia Brunacci, Chiara Rossi, Chiara Ippolito, Anna Solini, Giovanni U Corsini, Marco Scarselli
Antipsychotics (APDs) are divided into first-generation antipsychotics (FGAs) and second-generation antipsychotics (SGAs) based on the concept that SGAs have reduced motor side effects. With this premise, this study examined in HeLa and other cell lines the effects of different APDs on the activation of ERK1/2 (Extracellular signal-regulated kinases) and AKT (Protein Kinase B) kinases, which may be affected in schizophrenia and bipolar disorder. Among the SGAs, Clozapine clearly resulted as the most effective drug inducing ERK1/2 phosphorylation with potency in the low micromolar range...
March 7, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28279623/cortical-thickness-reduction-in-combat-exposed-u-s-veterans-with-and-without-ptsd
#10
Kristen M Wrocklage, Lynnette A Averill, J Cobb Scott, Christopher L Averill, Brian Schweinsburg, Marcia Trejo, Alicia Roy, Valerie Weisser, Christopher Kelly, Brenda Martini, Ilan Harpaz-Rotem, Steven M Southwick, John H Krystal, Chadi G Abdallah
We investigated the extent of cortical thinning in U.S. Veterans exposed to combat who varied in the severity of their posttraumatic stress disorder (PTSD) symptoms. In addition, we explored the neural correlates of PTSD symptom dimensions and the interactive effects of combat exposure and PTSD upon cortical thickness. Sixty-nine combat exposed Veterans completed high-resolution magnetic resonance imaging (MRI) scans to estimate cortical thickness. The Clinician Administered PTSD Scale (CAPS) and Combat Exposure Scale (CES) assessments were completed to measure current PTSD and historical combat severity, respectively...
March 6, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28274506/shorter-leukocyte-telomere-length-in-patients-at-ultra-high-risk-for-psychosis
#11
Pawan Kumar Maurya, Lucas Bortolotto Rizzo, Gabriela Xavier, Priscila Farias Tempaku, Maiara Zeni-Graiff, Marcos L Santoro, Diego Robles Mazzotti, André Zugman, Pedro Pan, Cristiano Noto, Michael Maes, Elson Asevedo, Rodrigo B Mansur, Graccielle R Cunha, Ary Gadelha, Rodrigo A Bressan, Sintia Iole Belangero, Elisa Brietzke
Telomere length attrition has been demonstrated in schizophrenia but not in individuals in ultra high risk (UHR) for psychosis. The present study aimed to compare the leukocyte telomere length (TL) between patients at UHR for psychosis and healthy controls (HC). Twenty-two participants with UHR and 88 HC were enrolled in this study. Telomere lengths were determined using a multiplex qPCR assay. After adjustment for age, sex, ethnicity, and education, patients in UHR, compared with HC groups, had shorter telomere length (RR: 0...
March 5, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28237505/stressful-life-events-increase-aggression-and-alcohol-use-in-young-carriers-of-the-gabra2-rs279826-rs279858-a-allele
#12
Evelyn Kiive, Kariina Laas, Mariliis Vaht, Toomas Veidebaum, Jaanus Harro
Research of GABRA2 gene in alcohol use and impulse control suggests its role in aggressive behaviour. The purpose of the present study was to examine the effects of GABRA2 genotype and stressful life events on aggressive behaviour, alcohol use frequency and occurrence of alcohol use disorder in a population representative sample of adolescents followed up from third grade to 25 years of age. The sample consisted of the younger cohort of the longitudinal Estonian Children Personality, Behaviour and Health Study...
February 23, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28237506/eeg-connectivity-between-the-subgenual-anterior-cingulate-and-prefrontal-cortices-in-response-to-antidepressant-medication
#13
Tabitha A Iseger, Mayuresh S Korgaonkar, J Leon Kenemans, Stuart M Grieve, Chris Baeken, Paul B Fitzgerald, Martijn Arns
Antidepressant medication is the most common treatment for major depressive disorder (MDD), however, the precise working mechanism underlying these treatments remains unclear. Recent neuromodulation treatments demonstrate that direct stimulation of the dorsolateral prefrontal cortex (DLPFC), dorsomedial prefrontal cortex (DMPFC), and subgenual anterior cingulate (sgACC) relate to clinical improvement, suggesting connectivity alterations of the DLPFC-DMPFC-sgACC network to mediate antidepressant response. The international Study to Predict Optimized Treatment in Depression (iSPOT-D) is an international multicentre study that collected EEG data for 1008 MDD patients, randomized to 3 different antidepressant medications (N=447 MDD with complete pre- and post-treatment data and N=336 non-MDD)...
February 22, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28233670/crhr1-promoter-hypomethylation-an-epigenetic-readout-of-panic-disorder
#14
Christoph Schartner, Christiane Ziegler, Miriam A Schiele, Leonie Kollert, Heike Weber, Peter Zwanzger, Volker Arolt, Paul Pauli, Jürgen Deckert, Andreas Reif, Katharina Domschke
The corticotropin releasing hormone receptor 1 (CRHR1) is crucially involved in the hypothalamic-pituitary-adrenal axis and thus a major regulator of the stress response. CRHR1 gene variation is associated with several mental disorders including anxiety disorders. Studies in rodents have demonstrated epigenetic regulation of CRHR1 gene expression to moderate response to stressful environment. In the present study, we investigated CRHR1 promoter methylation for the first time regarding its role in panic disorder applying a case-control approach (N=131 patients, N=131 controls)...
February 20, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28190661/the-novel-antipsychotic-drug-brexpiprazole-alone-and-in-combination-with-escitalopram-facilitates-prefrontal-glutamatergic-transmission-via-a-dopamine-d1-receptor-dependent-mechanism
#15
Carl Björkholm, Monica M Marcus, Åsa Konradsson-Geuken, Kent Jardemark, Torgny H Svensson
Brexpiprazole (Rexulti(®)), a novel D2/3 receptor (R) partial agonist, was recently approved as monotherapy for schizophrenia, demonstrating effectiveness against both positive and negative symptoms, and also approved as add-on treatment to antidepressant drugs, inducing a potent antidepressant effect with a faster onset compared to an antidepressant given alone. Moreover, brexpiprazole has demonstrated pro-cognitive effects in preclinical studies. To explore whether the observed effects may be mediated via modulation of prefrontal glutamatergic transmission, we investigated the effect of brexpiprazole, alone and in combination with the SSRI escitalopram, on prefrontal glutamatergic transmission using in vitro electrophysiological intracellular recordings of deep layer pyramidal cells of the rat medial prefrontal cortex (mPFC)...
February 9, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28187919/dopamine-d3-and-acetylcholine-nicotinic-receptor-heteromerization-in-midbrain-dopamine-neurons-relevance-for-neuroplasticity
#16
Leonardo Bontempi, Paola Savoia, Federica Bono, Chiara Fiorentini, Cristina Missale
Activation of nicotinic acetylcholine receptors (nAChR) promotes the morphological remodeling of cultured dopamine (DA) neurons, an effect requiring functional DA D3 receptors (D3R). The aim of this study was to investigate the mechanisms mediating D3R-nAChR cross-talk in the modulation of DA neuron structural plasticity. By using bioluminescence resonance energy transfer(2) (BRET(2)) and proximity ligation assay (PLA), evidence for the existence of D3R-nAChR heteromers has been obtained. In particular, BRET(2) showed that the D3R directly and specifically interacts with the β2 subunit of the nAChR...
February 7, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28161247/evidence-based-national-suicide-prevention-taskforce-in-europe-a-consensus-position-paper
#17
Gil Zalsman, Keith Hawton, Danuta Wasserman, Kees van Heeringen, Ella Arensman, Marco Sarchiapone, Vladimir Carli, Cyril Höschl, Petr Winkler, Judit Balazs, György Purebl, Jean Pierre Kahn, Pilar Alejandra Sáiz, Julio Bobes, Doina Cozman, Ulrich Hegerl, Elmārs Rancāns, Gergö Hadlaczky, Chantal Van Audenhove, Haggy Hermesh, Merike Sisask, Armen Melik Peschayan, Nestor Kapusta, Virginja Adomaitiene, Vesta Steibliene, Iwowa Kosiewska, Vsevolod Rozanov, Philp Courtet, Joseph Zohar
No abstract text is available yet for this article.
February 1, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28161246/partial-agonism-at-the-%C3%AE-7-nicotinic-acetylcholine-receptor-improves-attention-impulsive-action-and-vigilance-in-low-attentive-rats
#18
Andrew Hayward, Lisa Adamson, Joanna C Neill
Inattention is a disabling symptom in conditions such as schizophrenia and attention deficit/hyperactivity disorder. Nicotine can improve attention and vigilance, but is unsuitable for clinical use due to abuse liability. Genetic knockout of the α7 nicotinic acetylcholine receptor (nAChR) induces attention deficits therefore selective agonism may improve attention, without the abuse liability associated with nicotine. The α7 nAChR partial agonist encenicline (formerly EVP-6124) enhances memory in rodents and humans...
February 1, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28131675/the-involvement-of-cannabinoids-and-mtor-in-the-reconsolidation-of-an-emotional-memory-in-the-hippocampal-amygdala-insular-circuit
#19
Salman Zubedat, Irit Akirav
Memory reconsolidation is the process in which reactivated long-term memory becomes transiently sensitive to amnesic agents. We evaluated the ability of post reactivation administration of the mTOR inhibitor rapamycin, separately and in combination with the cannabinoid CB1/2 receptor agonist WIN55,212-2 (WIN), given systemically or specifically into the hippocampal CA1 area, basolateral amygdala (BLA) or insular cortex (IC), to reduce inhibitory avoidance fear in rats. Systemic administration of rapamycin after reactivation of fear memory impaired reconsolidation and facilitated extinction...
January 25, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28130001/dried-blood-spot-sampling-in-psychiatry-perspectives-for-improving-therapeutic-drug-monitoring
#20
REVIEW
Lisa C Martial, Rob E Aarnoutse, Martina Mulder, Arnt Schellekens, Roger J M Brüggemann, David M Burger, Aart H Schene, Albert Batalla
Assessment of drug concentrations is indicated to guide dosing of a selected number of drugs used in psychiatry. Conventionally this is done by vena puncture. Novel sampling strategies such as dried blood spot (DBS) sampling have been developed for various drugs, including antipsychotics, antidepressants and mood-stabilizers. DBS sampling is typically performed by means of a finger prick. This method allows for remote sampling, which means that patients are not required to travel to a health care facility. The number of DBS assays for drugs used in psychiatry has increased over the last decade and includes antidepressants (tricyclic and serotonin and/or norepinephrine reuptake inhibitors), mood stabilizers and first- and second-generation antipsychotics...
January 24, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
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