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Bipolar Disorders

Amedeo Minichino, Roberto Delle Chiaie, Giorgio Cruccu, Serena Piroso, Di Stefano Giulia, Marta Francesconi, Francesco Saverio Bersani, Massimo Biondi, Andrea Truini
OBJECTIVES: Overlapping neural system dysfunctions, mainly involving the secondary somatosensory cortex (S2), the anterior cingulate cortex (ACC) and the anterior insular cortex (AIC), seem to be related to both pain-perception abnormalities and psychotic symptoms in schizophrenia (SCZ) and bipolar disorder (BD). Laser-evoked potentials (LEPs) were used to investigate pain-perception and central pain-processing abnormalities in SCZ, bipolar I disorder (BD-I), and bipolar II disorder (BD-II), and to evaluate their relationship with history of psychosis, and social-cognitive and functional impairments...
October 26, 2016: Bipolar Disorders
Eléonore Beurel, Steven F Grieco, Celeste Amadei, Kimberlee Downey, Richard S Jope
OBJECTIVES: Sub-anesthetic doses of ketamine have been found to provide rapid antidepressant actions, indicating that the cellular signaling systems targeted by ketamine are potential sites for therapeutic intervention. Ketamine acts as an antagonist of N-methyl-D-aspartate (NMDA) receptors, and animal studies indicate that subsequent augmentation of signaling by α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) receptors is critical for the antidepressant outcome. METHODS: In this study, we tested if the inhibitory effect of ketamine on glycogen synthase kinase-3 (GSK3) affected hippocampal cell-surface AMPA receptors using immunoblotting of membrane and synaptosomal extracts from wild-type and GSK3 knockin mice...
September 30, 2016: Bipolar Disorders
Mark S Bauer, Christopher J Miller, Mingfei Li, Laura A Bajor, Austin Lee
OBJECTIVES: Numerous antimanic treatments have been introduced over the past two decades, particularly second-generation antipsychotics (SGAs). However, it is not clear whether such newer agents provide any advantage over older treatments. METHODS: A historical cohort design investigated the nationwide population of outpatients with bipolar disorder treated in the Department of Veterans Affairs who were newly initiated on an antimanic agent between 2003 and 2010 (N=27 727)...
September 21, 2016: Bipolar Disorders
Luz H Ospina, Manuela Russo, George M Nitzburg, Armando Cuesta-Diaz, Megan Shanahan, Mercedes M Perez-Rodriguez, Meaghan Mcgrath, Hannah Levine, Sandra Mulaimovic, Katherine E Burdick
OBJECTIVES: Several studies have documented the prevalence and effects of cigarette smoking on cognition in psychotic disorders; fewer have focused on bipolar disorder (BD). Cognitive and social dysfunction are common in BD, and the severity of these deficits may be related both to illness features (e.g., current symptoms, psychosis history) and health-related behaviors (e.g., smoking, alcohol use). The current study assessed the influence of cigarette smoking on general and social cognition in a BD cohort, accounting for illness features with a focus on psychosis history...
September 21, 2016: Bipolar Disorders
Stephen M Strakowski, David E Fleck, Jeffrey Welge, James C Eliassen, Matthew Norris, Michelle Durling, Richard A Komoroski, Wen-Jang Chu, Wade Weber, Jonathan A Dudley, Thomas J Blom, Amanda Stover, Christina Klein, Jeffrey R Strawn, Melissa P DelBello, Jing-Huei Lee, Caleb M Adler
OBJECTIVES: We tested the hypothesis that, with treatment, functional magnetic resonance imaging (fMRI) regional brain activation in first-episode mania would normalize - i.e., that differences from healthy subjects would diminish over time, and would be associated with clinical remission status, potentially identifying neuroanatomic treatment response markers. METHODS: Forty-two participants with bipolar I disorder were recruited during their first manic episode, pseudo-randomized to open-label lithium or quetiapine, and followed for 8 weeks...
September 19, 2016: Bipolar Disorders
Steven M Miller
No abstract text is available yet for this article.
September 14, 2016: Bipolar Disorders
Jan-Marie Kozicky, Alexander McGirr, David J Bond, Marjorie Gonzalez, Leonardo E Silveira, Kamyar Keramatian, Ivan J Torres, Raymond W Lam, Lakshmi N Yatham
OBJECTIVES: Bipolar I disorder (BD-I) is associated with gray matter volume (GMV) alterations in neural regions important for emotional regulation. Reductions found in patients with multiple episodes are not seen at illness onset, suggesting that changes occur with illness progression, although no prospective studies to date have examined this. In the present study, we assessed GMV at baseline and one year following a first manic episode, examining the impact of episode recurrence on the trajectory of change...
September 2016: Bipolar Disorders
Dirk Alexander Wittekind, Janek Spada, Alexander Gross, Tilman Hensch, Philippe Jawinski, Christine Ulke, Christian Sander, Ulrich Hegerl
OBJECTIVES: The arousal regulation model of affective disorders attributes an important role in the pathophysiology of affective disorders to dysregulation of brain arousal regulation. According to this model, sensation avoidance and withdrawal in depression and sensation seeking and hyperactivity in mania can be explained as auto-regulatory attempts to counteract a tonically high (depression) or unstable (mania) arousal. The aim of this study was to compare brain arousal regulation between manic and depressive bipolar patients and healthy controls...
September 2016: Bipolar Disorders
Suzanne Gonzalez, Jayanta Gupta, Erika Villa, Indika Mallawaarachchi, Marco Rodriguez, Mercedes Ramirez, Juan Zavala, Regina Armas, Albana Dassori, Javier Contreras, Deborah Flores, Alvaro Jerez, Alfonso Ontiveros, Humberto Nicolini, Michael Escamilla
OBJECTIVES: Recent genome-wide association studies (GWASs) have identified numerous putative genetic polymorphisms associated with bipolar disorder (BD) and/or schizophrenia (SC). We hypothesized that a portion of these polymorphisms would also be associated with BD in the Latino American population. To identify such regions, we tested previously identified genetic variants associated with BD and/or SC and ancestral haploblocks containing these single nucleotide polymorphisms (SNPs) in a sample of Latino subjects with BD...
September 2016: Bipolar Disorders
Alize J Ferrari, Emily Stockings, Jon-Paul Khoo, Holly E Erskine, Louisa Degenhardt, Theo Vos, Harvey A Whiteford
OBJECTIVES: We present the global burden of bipolar disorder based on findings from the Global Burden of Disease Study 2013 (GBD 2013). METHODS: Data on the epidemiology of bipolar disorder were obtained from a systematic literature review and assembled using Bayesian meta-regression modelling to produce prevalence by country, age, sex and year. Years lived with disability (YLDs) were estimated by multiplying prevalence by disability weights quantifying the severity of the health loss associated with bipolar disorder...
August 2016: Bipolar Disorders
Kyle J Burghardt, Jacyln M Goodrich, Dana C Dolinoy, Vicki L Ellingrod
OBJECTIVES: Atypical antipsychotics (AAPs) carry a significant risk of cardiometabolic side effects, including insulin resistance. It is thought that the insulin resistance resulting from the use of AAPs may be associated with changes in DNA methylation. We aimed to identify and validate a candidate gene associated with AAP-induced insulin resistance by using a multi-step approach that included an epigenome-wide association study (EWAS) and validation with site-specific methylation and metabolomics data...
August 2016: Bipolar Disorders
Gin S Malhi, Tim Outhred
No abstract text is available yet for this article.
August 2016: Bipolar Disorders
Cassandra Joslyn, David J Hawes, Caroline Hunt, Philip B Mitchell
OBJECTIVES: To identify clinical characteristics and adverse outcomes associated with an earlier age of onset of bipolar disorder. METHODS: A comprehensive search yielded 15 empirical papers comparing clinical presentation and outcomes in individuals with bipolar disorder grouped according to age of onset (total N=7370). The following variables were examined to determine odds ratios (ORs) and 95% confidence intervals (CIs): presence of Axis I comorbidity, rapid cycling, psychotic symptoms, mixed episodes (DSM-IV), lifetime suicide attempts, lifetime alcohol and substance abuse, symptom severity, and treatment delay...
August 2016: Bipolar Disorders
Rodrigo B Mansur, Camila M Santos, Lucas B Rizzo, Graccielle R Cunha, Elson Asevedo, Mariane N Noto, Mariana Pedrini, Maiara Zeni, Quirino Cordeiro, Roger S McIntyre, Elisa Brietzke
OBJECTIVES: Accumulating evidence indicates that oxidative stress and neurotrophins have a bidirectional relationship. In this post hoc, exploratory analysis, we investigated the association between plasma brain-derived neurotrophic factor (BDNF) levels and activities of the antioxidant enzymes glutathione peroxidase (GPx) and superoxide dismutase (SOD) in individuals with bipolar disorder (BD) and healthy controls. METHODS: We measured plasma levels of BDNF and activities of GPx and SOD in individuals with BD (n=59) and healthy controls (n=26)...
August 2016: Bipolar Disorders
Rosie May Walker, Jessika Elizabeth Sussmann, Heather Clare Whalley, Niamh Margaret Ryan, David John Porteous, Andrew Mark McIntosh, Kathryn Louise Evans
OBJECTIVES: Accumulating evidence implicates altered DNA methylation in psychiatric disorders, including bipolar disorder (BD) and major depressive disorder (MDD). It is not clear, however, whether these changes are causative or result from illness progression or treatment. To disentangle these possibilities we profiled genome-wide DNA methylation in well, unrelated individuals at high familial risk of mood disorder. DNA methylation was compared between individuals who subsequently developed BD or MDD [ill later (IL)] and those who remained well [well later (WL)]...
August 2016: Bipolar Disorders
Galila Agam, Abed N Azab
No abstract text is available yet for this article.
August 2016: Bipolar Disorders
Robert Yolken, Maria Adamos, Emily Katsafanas, Sunil Khushalani, Andrea Origoni, Christina Savage, Lucy Schweinfurth, Cassie Stallings, Kevin Sweeney, Faith Dickerson
OBJECTIVES: We have preciously documented that many individuals with acute mania have immune activation. However, the sources of immune activation have not been identified. We investigated whether individuals hospitalized with acute mania have evidence of bacterial infections as determined by the prescription of systemic antimicrobial agents. METHODS: We assessed the recent prescription of systemic antimicrobial medications and the site of presumed bacterial infection in 234 individuals hospitalized for acute mania in either an inpatient unit or a day hospital...
August 2016: Bipolar Disorders
Anastasia Hodes, Haim Rosen, Joseph Deutsch, Tzuri Lifschytz, Haim Einat, David Lichtstein
OBJECTIVES: Bipolar disorder (BD) is a complex psychiatric disorder characterized by mania and depression. Alterations in brain Na(+) , K(+) -ATPase and cardiac steroids (CSs) have been detected in BD, raising the hypothesis of their involvement in this pathology. The present study investigated the behavioral and biochemical consequences of a reduction in endogenous brain CS activity in animal models of mania. METHODS: Amphetamine (AMPH)-induced hyperactivity in BALB/c and black Swiss mice served as a model of mania...
August 2016: Bipolar Disorders
Lars Vedel Kessing
No abstract text is available yet for this article.
August 2016: Bipolar Disorders
(no author information available yet) The above article from Bipolar Disorders - An International Journal of Psychiatry and Neurosciences, published online on 16 October 2014 in Wiley Online Library (, has been retracted by agreement among the authors, the journal Editors-in-Chief, K.N. Roy Chengappa and Samuel Gershon, and John Wiley & Sons, Ltd. The retraction has been agreed due to overlap between this article and the following article published in the Journal of Affective Disorders, 'Are ICAM, VCAM and E-selectin levels different in first manic episode and subsequent remission?' by Çetin Turan, Sermin Kesebir, and Özgür Süner, Volume 163, 2014, pages 76-80...
August 2016: Bipolar Disorders
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