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Biological Psychiatry

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https://www.readbyqxmd.com/read/28645967/the-bipolar-illness-onset-study-research-protocol-for-the-bio-cohort-study
#1
Lars Vedel Kessing, Klaus Munkholm, Maria Faurholt-Jepsen, Kamilla Woznica Miskowiak, Lars Bo Nielsen, Ruth Frikke-Schmidt, Claus Ekstrøm, Ole Winther, Bente Klarlund Pedersen, Henrik Enghusen Poulsen, Roger S McIntyre, Flavio Kapczinski, Wagner F Gattaz, Jakob Bardram, Mads Frost, Oscar Mayora, Gitte Moos Knudsen, Mary Phillips, Maj Vinberg
INTRODUCTION: Bipolar disorder is an often disabling mental illness with a lifetime prevalence of 1%-2%, a high risk of recurrence of manic and depressive episodes, a lifelong elevated risk of suicide and a substantial heritability. The course of illness is frequently characterised by progressive shortening of interepisode intervals with each recurrence and increasing cognitive dysfunction in a subset of individuals with this condition. Clinically, diagnostic boundaries between bipolar disorder and other psychiatric disorders such as unipolar depression are unclear although pharmacological and psychological treatment strategies differ substantially...
June 23, 2017: BMJ Open
https://www.readbyqxmd.com/read/28637048/use-of-light-therapy-by-office-based-physicians
#2
Edda Winkler-Pjrek, Marie Spies, Pia Baldinger-Melich, Lisa Perkmann, Siegfried Kasper, Dietmar Winkler
BACKGROUND: Light therapy (LT) is a non-pharmacological biological treatment that has been used in psychiatry since the 1980s. Previous research has investigated the usage of LT in hospitals. The aim of this study was to examine the pattern of use of LT by office-based physicians. METHODS: A questionnaire was sent by mail to 400 randomly selected doctors in Austria. We made sure that the sample was equally representative of general practitioners (GPs) and psychiatrists, public health service doctors and private doctors, physicians in cities and in the country as well as male and female doctors...
June 22, 2017: Neuropsychobiology
https://www.readbyqxmd.com/read/28635541/association-between-abnormal-brain-functional-connectivity-in-children-and-psychopathology-a-study-based-on-graph-theory-and-machine-learning
#3
João Ricardo Sato, Claudinei Eduardo Biazoli, Giovanni Abrahão Salum, Ary Gadelha, Nicolas Crossley, Gilson Vieira, André Zugman, Felipe Almeida Picon, Pedro Mario Pan, Marcelo Queiroz Hoexter, Edson Amaro, Mauricio Anés, Luciana Monteiro Moura, Marco Antonio Gomes Del'Aquilla, Philip Mcguire, Luis Augusto Rohde, Euripedes Constantino Miguel, Andrea Parolin Jackowski, Rodrigo Affonseca Bressan
OBJECTIVES: One of the major challenges facing psychiatry is how to incorporate biological measures in the classification of mental health disorders. Many of these disorders affect brain development and its connectivity. In this study, we propose a novel method for assessing brain networks based on the combination of a graph theory measure (eigenvector centrality) and a one-class support vector machine (OC-SVM). METHODS: We applied this approach to resting-state fMRI data from 622 children and adolescents...
February 8, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28630456/rare-disruptive-variants-in-the-disc1-interactome-and-regulome-association-with-cognitive-ability-and-schizophrenia
#4
S Teng, P A Thomson, S McCarthy, M Kramer, S Muller, J Lihm, S Morris, D C Soares, W Hennah, S Harris, L M Camargo, V Malkov, A M McIntosh, J K Millar, D H Blackwood, K L Evans, I J Deary, D J Porteous, W R McCombie
Schizophrenia (SCZ), bipolar disorder (BD) and recurrent major depressive disorder (rMDD) are common psychiatric illnesses. All have been associated with lower cognitive ability, and show evidence of genetic overlap and substantial evidence of pleiotropy with cognitive function and neuroticism. Disrupted in schizophrenia 1 (DISC1) protein directly interacts with a large set of proteins (DISC1 Interactome) that are involved in brain development and signaling. Modulation of DISC1 expression alters the expression of a circumscribed set of genes (DISC1 Regulome) that are also implicated in brain biology and disorder...
June 20, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28574009/potential-biomarkers-for-bipolar-disorder-where-do-we-stand
#5
REVIEW
Rajesh Sagar, Raman Deep Pattanayak
Bipolar disorder (BD) is a severe, recurrent mood disorder, associated with a significant morbidity and mortality, with high rates of suicides and medical comorbidities. There is a high risk of mood disorders among the first-degree relatives of patients with BD. In the current clinical practice, the diagnosis of BD is made by history taking, interview and behavioural observations, thereby lacking an objective, biological validation. This approach may result in underdiagnosis, misdiagnosis and eventually poorer outcomes...
January 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28571776/neurodevelopmental-theory-of-depression
#6
REVIEW
Piotr Gałecki, Monika Talarowska
The aim of research studies in the field of psychiatry conducted in recent years is to formulate a consistent theory that would exhaustively explain the aetiology of depression. So far, biochemical, genetic, anatomical and environmental factors, which may play a role in the occurrence of the first symptoms of depressive disorders, have been sought. The authors of this paper present a theory that combines the previously mentioned elements into one whole and links them to one another. We have called our theory "neurodevelopmental" to underline the importance and impact of earlier stages of human life, including the prenatal period, on the occurrence of depressive disorders...
May 29, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28566521/optical-and-chemical-discoveries-recognized-for-impact-on-biology-and-psychiatry
#7
Karl Deisseroth
No abstract text is available yet for this article.
June 2017: EMBO Reports
https://www.readbyqxmd.com/read/28559368/a-crisis-of-meaning-can-schizophrenia-survive-in-the-21st-century
#8
Jerry Tew
Both within clinical and wider societal discourses, the term 'schizophrenia' has achieved considerable potency as a signifier, privileging particular conceptual frames for understanding and responding to mental distress. However, its status has been subject to instability, as it has lacked indisputable biological correlates that would anchor its place within the canon of medical diagnosis. Informed by a semiotic perspective, this paper focuses on its recent history: how 'schizophrenia' has been claimed, appropriated and contested-and how this connects with its earlier history of signification...
June 2017: Medical Humanities
https://www.readbyqxmd.com/read/28555076/comparative-genomic-evidence-for-the-involvement-of-schizophrenia-risk-genes-in-antipsychotic-effects
#9
Y Kim, P Giusti-Rodriguez, J J Crowley, J Bryois, R J Nonneman, A K Ryan, C R Quackenbush, M D Iglesias-Ussel, P H Lee, W Sun, F P-M de Villena, P F Sullivan
Genome-wide association studies (GWAS) for schizophrenia have identified over 100 loci encoding >500 genes. It is unclear whether any of these genes, other than dopamine receptor D2, are immediately relevant to antipsychotic effects or represent novel antipsychotic targets. We applied an in vivo molecular approach to this question by performing RNA sequencing of brain tissue from mice chronically treated with the antipsychotic haloperidol or vehicle. We observed significant enrichments of haloperidol-regulated genes in schizophrenia GWAS loci and in schizophrenia-associated biological pathways...
May 30, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28539947/development-of-a-diverse-learning-experience-for-diverse-psychiatry-resident-needs-a-four-year-biological-psychiatry-curriculum-incorporating-principles-of-neurobiology-psychopharmacology-and-evidence-based-practice
#10
Andrew J Muzyk, Jane P Gagliardi, Gopalkumar Rakesh, Michael R Jiroutek, Rajiv Radhakrishnan, Chi-Un Pae, Prakash S Masand, Steven T Szabo
OBJECTIVE: A clinically relevant approach to patient care grounded in neurobiological constructs and evidence based practice which emphasizes a relevant psychopharmacology is needed to optimally train psychiatry residents. METHODS: We implemented a biological psychiatry course that now incorporates neurobiology, psychopharmacology, and evidence-based practice in conjunction with a Research Domain Criteria (RDoC) perspective. A survey launched prior to course implementation and following each class session, served as the outcome metric of residents' attitudes toward the new curriculum and followed a baseline attitudinal survey designed to evaluate the program...
May 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28539053/atomic-psychiatry-an-essay
#11
Ian Patrick Paddy Burges Watson
OBJECTIVE: This article aims to address the need to rethink the classification of mental illness and to draw attention to the current use of quantum biology and its likely future use in understanding the nature of mental illness. CONCLUSION: It is desirable to separate out neuroscience and clinical research and to become better acquainted with the concepts of quantum mechanical/quantum biological theory and its contribution to medicine.
May 1, 2017: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/28508656/-prevention-in-psychiatry
#12
Jiří Raboch
Mental disorders affect annually about one-fifth of the population and represent one of the biggest health burdens of the mankind in the 21st century. Despite great achievements of drug therapy, biological therapy and psychotherapeutic methods psychological problems in the present society are rather increasing. Therefore, attention also focuses on primary prevention of mental disorders, which is possible and effective.
2017: Casopís Lékar̆ů C̆eských
https://www.readbyqxmd.com/read/28507316/autism-spectrum-disorders-and-autistic-traits-share-genetics-and-biology
#13
J Bralten, K J van Hulzen, M B Martens, T E Galesloot, A Arias Vasquez, L A Kiemeney, J K Buitelaar, J W Muntjewerff, B Franke, G Poelmans
Autism spectrum disorders (ASDs) and autistic traits in the general population may share genetic susceptibility factors. In this study, we investigated such potential overlap based on common genetic variants. We developed and validated a self-report questionnaire of autistic traits in adults. We then conducted genome-wide association studies (GWASs) of six trait scores derived from the questionnaire through exploratory factor analysis in 1981 adults from the general population. Using the results from the Psychiatric Genomics Consortium GWAS of ASDs, we observed genetic sharing between ASDs and the autistic traits 'childhood behavior', 'rigidity' and 'attention to detail'...
May 16, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28498090/world-federation-of-societies-of-biological-psychiatry-wfsbp-guidelines-for-biological-treatment-of-schizophrenia-a-short-version-for-primary-care
#14
Alkomiet Hasan, Peter Falkai, Thomas Wobrock, Jeffrey Lieberman, Birte Glenthøj, Wagner F Gattaz, Florence Thibaut, Hans-Jürgen Möller
OBJECTIVE: Schizophrenia is a severe mental disorder and many patients are treated in primary care settings. Apart from the pharmacological management of disease-associated symptoms, the detection and treatment of side effects is of the utmost importance in clinical practice. The purpose of this publication is to offer relevant evidence-based recommendations for the biological treatment of schizophrenia in primary care. METHODS: This publication is a short and practice-oriented summary of Parts I-III of the World Federation of Societies of Biological Psychiatry (WFSBP) Guidelines for Biological Treatment of Schizophrenia...
June 2017: International Journal of Psychiatry in Clinical Practice
https://www.readbyqxmd.com/read/28492213/psychiatry-outside-the-framework-of-empiricism
#15
Celestine Okorome Mume
Science is interested in whatever that is empirical and objective. Any claim that cannot be objectively demonstrated has no place in science, because the subject does not deviate from the role, which it has set out to play in the life of mankind. Psychiatry, as a scientific discipline, plays along these basic principles. In the etiology, symptomatology, and management of psychiatric disorders, the biopsychosocial model recognizes the role of biological, psychological, and social factors. This essay views psychiatry from the biopsychosocial perspective and asserts that certain elements, which may not be readily and empirically verifiable, are important in the practice of psychiatry...
January 2017: Nigerian Postgraduate Medical Journal
https://www.readbyqxmd.com/read/28461698/genetic-risk-for-schizophrenia-and-psychosis-in-alzheimer-disease
#16
M A A DeMichele-Sweet, E A Weamer, L Klei, D T Vrana, D J Hollingshead, H J Seltman, R Sims, T Foroud, I Hernandez, S Moreno-Grau, L Tárraga, M Boada, A Ruiz, J Williams, R Mayeux, O L Lopez, E L Sibille, M I Kamboh, B Devlin, R A Sweet
Psychotic symptoms, defined as the occurrence of delusions or hallucinations, are frequent in Alzheimer disease (AD), affecting ~40 to 60% of individuals with AD (AD with psychosis (AD+P)). In comparison with AD subjects without psychosis, AD+P subjects have more rapid cognitive decline and poor outcomes. Prior studies have estimated the heritability of psychosis in AD at 61%, but the underlying genetic sources of this risk are not known. We evaluated a Discovery Cohort of 2876 AD subjects with (N=1761) or without psychosis (N=1115)...
May 2, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28458034/emotional-learning-stress-and-development-an-ever-changing-landscape-shaped-by-early-life-experience
#17
Siobhan S Pattwell, Kevin G Bath
The capacity to learn to associate cues with negative outcomes is a highly adaptive process that appears to be conserved across species. However, when the cue is no longer a valid predictor of danger, but the emotional response persists, this can result in maladaptive behaviors, and in humans contribute to debilitating emotional disorders. Over the past several decades, work in neuroscience, psychiatry, psychology, and biology have uncovered key processes underlying, and structures governing, emotional responding and learning, as well as identified disruptions in the structural and functional integrity of these brain regions in models of pathology...
April 27, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28445399/advances-in-psychiatric-diagnosis-past-present-and-future
#18
EDITORIAL
Carol S North, Alina M Surís
This editorial examines controversies identified by the articles in this special issue, which explore psychopathology in the broad history of the classification of selected psychiatric disorders and syndromes over time through current American criteria. Psychiatric diagnosis has a long history of scientific investigation and application, with periods of rapid change, instability, and heated controversy associated with it. The articles in this issue examine the history of psychiatric nomenclature and explore current and future directions in psychiatric diagnosis through the various versions of accepted diagnostic criteria and accompanying research literature addressing the criteria...
April 26, 2017: Behavioral Sciences
https://www.readbyqxmd.com/read/28439103/brain-age-predicts-mortality
#19
J H Cole, S J Ritchie, M E Bastin, M C Valdés Hernández, S Muñoz Maniega, N Royle, J Corley, A Pattie, S E Harris, Q Zhang, N R Wray, P Redmond, R E Marioni, J M Starr, S R Cox, J M Wardlaw, D J Sharp, I J Deary
Age-associated disease and disability are placing a growing burden on society. However, ageing does not affect people uniformly. Hence, markers of the underlying biological ageing process are needed to help identify people at increased risk of age-associated physical and cognitive impairments and ultimately, death. Here, we present such a biomarker, 'brain-predicted age', derived using structural neuroimaging. Brain-predicted age was calculated using machine-learning analysis, trained on neuroimaging data from a large healthy reference sample (N=2001), then tested in the Lothian Birth Cohort 1936 (N=669), to determine relationships with age-associated functional measures and mortality...
April 25, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28433458/linking-the-biological-underpinnings-of-depression-role-of-mitochondria-interactions-with-melatonin-inflammation-sirtuins-tryptophan-catabolites-dna-repair-and-oxidative-and-nitrosative-stress-with-consequences-for-classification-and-cognition
#20
REVIEW
George Anderson
The pathophysiological underpinnings of neuroprogressive processes in recurrent major depressive disorder (rMDD) are reviewed. A wide array of biochemical processes underlie MDD presentations and their shift to a recurrent, neuroprogressive course, including: increased immune-inflammation, tryptophan catabolites (TRYCATs), mitochondrial dysfunction, aryl hydrocarbonn receptor activation, and oxidative and nitrosative stress (O&NS), as well as decreased sirtuins and melatonergic pathway activity. These biochemical changes may have their roots in central, systemic and/or peripheral sites, including in the gut, as well as in developmental processes, such as prenatal stressors and breastfeeding consequences...
April 19, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
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