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Biological Psychiatry

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https://www.readbyqxmd.com/read/29236813/psychoanalysis-and-neurosciences-fuzzy-outlines-notes-on-the-notion-of-cerebral-plasticity
#1
Maria Jimena Mantilla
"Psychoanalysis versus psychiatry" and "unconscious versus brain" are classic oppositions between different perspectives on the human being and mental suffering. This article draws on certain elements of this discussion and reflects on how new ideas about the brain and biology favor closer interaction between psychoanalysis and the neurosciences. These questions are redefined through the notion of cerebral plasticity, by which the brain is open to interaction with the social environment and the influence of psychoanalytical therapy...
November 2017: História, Ciências, Saúde—Manguinhos
https://www.readbyqxmd.com/read/29188348/-big-data-approaches-in-psychiatry-examples-in-depression-research
#2
REVIEW
D Bzdok, T M Karrer, U Habel, F Schneider
BACKGROUND: The exploration and therapy of depression is aggravated by heterogeneous etiological mechanisms and various comorbidities. With the growing trend towards big data in psychiatry, research and therapy can increasingly target the individual patient. This novel objective requires special methods of analysis. OBJECTIVE: The possibilities and challenges of the application of big data approaches in depression are examined in closer detail. MATERIAL AND METHODS: Examples are given to illustrate the possibilities of big data approaches in depression research...
November 29, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/29180674/why-is-there-selective-subcortical-vulnerability-in-adhd-clues-from-postmortem-brain-gene-expression-data
#3
J L Hess, G C Akutagava-Martins, J D Patak, S J Glatt, S V Faraone
Sub-cortical volumetric differences were associated with attention-deficit/hyperactivity disorder (ADHD) in a recent multi-site, mega-analysis of 1713 ADHD persons and 1529 controls. As there was a wide range of effect sizes among the sub-cortical volumes, it is possible that selective neuronal vulnerability has a role in these volumetric losses. To address this possibility, we used data from Allen Brain Atlas to investigate variability in gene expression profiles between subcortical regions of typically developing brains...
November 28, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29179742/neuroimaging-genomics-in-psychiatry-a-translational-approach
#4
REVIEW
Mary S Mufford, Dan J Stein, Shareefa Dalvie, Nynke A Groenewold, Paul M Thompson, Neda Jahanshad
Neuroimaging genomics is a relatively new field focused on integrating genomic and imaging data in order to investigate the mechanisms underlying brain phenotypes and neuropsychiatric disorders. While early work in neuroimaging genomics focused on mapping the associations of candidate gene variants with neuroimaging measures in small cohorts, the lack of reproducible results inspired better-powered and unbiased large-scale approaches. Notably, genome-wide association studies (GWAS) of brain imaging in thousands of individuals around the world have led to a range of promising findings...
November 27, 2017: Genome Medicine
https://www.readbyqxmd.com/read/29169634/the-emerging-neurobiology-of-bipolar-disorder
#5
REVIEW
Paul J Harrison, John R Geddes, Elizabeth M Tunbridge
Bipolar disorder (BD) is a leading cause of global disability. Its biological basis is unknown, and its treatment unsatisfactory. Here, we review two recent areas of progress. First, the discovery of risk genes and their implications, with a focus on voltage-gated calcium channels as part of the disease process and as a drug target. Second, facilitated by new technologies, it is increasingly apparent that the bipolar phenotype is more complex and nuanced than simply one of recurring manic and depressive episodes...
November 20, 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/29167538/a-deep-dream-virtual-reality-platform-for-studying-altered-perceptual-phenomenology
#6
Keisuke Suzuki, Warrick Roseboom, David J Schwartzman, Anil K Seth
Altered states of consciousness, such as psychotic or pharmacologically-induced hallucinations, provide a unique opportunity to examine the mechanisms underlying conscious perception. However, the phenomenological properties of these states are difficult to isolate experimentally from other, more general physiological and cognitive effects of psychoactive substances or psychopathological conditions. Thus, simulating phenomenological aspects of altered states in the absence of these other more general effects provides an important experimental tool for consciousness science and psychiatry...
November 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29144157/the-influence-of-sunlight-exposure-on-hospitalization-in-emergency-psychiatry
#7
Andrea Aguglia, Antonio Borsotti, Francesco Cuniberti, Gianluca Serafini, Mario Amore, Giuseppe Maina
OBJECTIVE: Environmental conditions during early life may affect individual vulnerability to both physiological changes as well as psychiatric conditions, especially in those with a genetic susceptibility. Among all factors, sunlight exposure intensity has a crucial effect on affecting circadian functions high-risk individuals. A potential explanation of this relation is that excessive sunlight exposure is able to impair biological mechanisms, possibly through the dysregulation of serotonin and/or melatonin production/metabolism...
November 16, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29133949/a-total-population-multigenerational-family-clustering-study-of-autoimmune-diseases-in-obsessive-compulsive-disorder-and-tourette-s-chronic-tic-disorders
#8
D Mataix-Cols, E Frans, A Pérez-Vigil, R Kuja-Halkola, C Gromark, K Isomura, L Fernández de la Cruz, E Serlachius, J F Leckman, J J Crowley, C Rück, C Almqvist, P Lichtenstein, H Larsson
The association between obsessive-compulsive disorder (OCD) and Tourette's/chronic tic disorders (TD/CTD) with autoimmune diseases (ADs) is uncertain. In this nationwide study, we sought to clarify the patterns of comorbidity and familial clustering of a broad range of ADs in individuals with OCD, individuals with TD/CTD and their biological relatives. From a birth cohort of 7 465 455 individuals born in Sweden between 1940 and 2007, we identified 30 082 OCD and 7279 TD/CTD cases in the National Patient Register and followed them up to 31 December 2013...
November 14, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29112194/genome-wide-association-study-identifies-a-novel-locus-for-cannabis-dependence
#9
A Agrawal, Y-L Chou, C E Carey, D A A Baranger, B Zhang, R Sherva, L Wetherill, M Kapoor, J-C Wang, S Bertelsen, A P Anokhin, V Hesselbrock, J Kramer, M T Lynskey, J L Meyers, J I Nurnberger, J P Rice, J Tischfield, L J Bierut, L Degenhardt, L A Farrer, J Gelernter, A R Hariri, A C Heath, H R Kranzler, P A F Madden, N G Martin, G W Montgomery, B Porjesz, T Wang, J B Whitfield, H J Edenberg, T Foroud, A M Goate, R Bogdan, E C Nelson
Despite moderate heritability, only one study has identified genome-wide significant loci for cannabis-related phenotypes. We conducted meta-analyses of genome-wide association study data on 2080 cannabis-dependent cases and 6435 cannabis-exposed controls of European descent. A cluster of correlated single-nucleotide polymorphisms (SNPs) in a novel region on chromosome 10 was genome-wide significant (lowest P=1.3E-8). Among the SNPs, rs1409568 showed enrichment for H3K4me1 and H3K427ac marks, suggesting its role as an enhancer in addiction-relevant brain regions, such as the dorsolateral prefrontal cortex and the angular and cingulate gyri...
November 7, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29098925/the-world-federation-of-societies-of-biological-psychiatry-wfsbp-guidelines-for-the-biological-treatment-of-bipolar-disorders-acute-and-long-term-treatment-of-mixed-states-in-bipolar-disorder
#10
Heinz Grunze, Eduard Vieta, Guy M Goodwin, Charles Bowden, Rasmus W Licht, Jean-Michel Azorin, Lakshmi Yatham, Sergey Mosolov, Hans-Jürgen Möller, Siegfried Kasper
OBJECTIVES: Although clinically highly relevant, the recognition and treatment of bipolar mixed states has played only an underpart in recent guidelines. This WFSBP guideline has been developed to supply a systematic overview of all scientific evidence pertaining to the acute and long-term treatment of bipolar mixed states in adults. METHODS: Material used for these guidelines is based on a systematic literature search using various data bases. Their scientific rigour was categorised into six levels of evidence (A-F), and different grades of recommendation to ensure practicability were assigned...
November 3, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/29076399/cerebrospinal-fluid-and-blood-biomarkers-for-neurodegenerative-dementias-an-update-of-the-consensus-of-the-task-force-on-biological-markers-in-psychiatry-of-the-world-federation-of-societies-of-biological-psychiatry
#11
Piotr Lewczuk, Peter Riederer, Sid E O'Bryant, Marcel M Verbeek, Bruno Dubois, Pieter Jelle Visser, Kurt A Jellinger, Sebastiaan Engelborghs, Alfredo Ramirez, Lucilla Parnetti, Clifford R Jack, Charlotte E Teunissen, Harald Hampel, Alberto Lleó, Frank Jessen, Lidia Glodzik, Mony J de Leon, Anne M Fagan, José Luis Molinuevo, Willemijn J Jansen, Bengt Winblad, Leslie M Shaw, Ulf Andreasson, Markus Otto, Brit Mollenhauer, Jens Wiltfang, Martin R Turner, Inga Zerr, Ron Handels, Alexander G Thompson, Gunilla Johansson, Natalia Ermann, John Q Trojanowski, Ilker Karaca, Holger Wagner, Patrick Oeckl, Linda van Waalwijk van Doorn, Maria Bjerke, Dimitrios Kapogiannis, H Bea Kuiperij, Lucia Farotti, Yi Li, Brian A Gordon, Stéphane Epelbaum, Stephanie J B Vos, Catharina J M Klijn, William E Van Nostrand, Carolina Minguillon, Matthias Schmitz, Carla Gallo, Andrea Lopez Mato, Florence Thibaut, Simone Lista, Daniel Alcolea, Henrik Zetterberg, Kaj Blennow, Johannes Kornhuber
In the 12 years since the publication of the first Consensus Paper of the WFSBP on biomarkers of neurodegenerative dementias, enormous advancement has taken place in the field, and the Task Force takes now the opportunity to extend and update the original paper. New concepts of Alzheimer's disease (AD) and the conceptual interactions between AD and dementia due to AD were developed, resulting in two sets for diagnostic/research criteria. Procedures for pre-analytical sample handling, biobanking, analyses and post-analytical interpretation of the results were intensively studied and optimised...
October 27, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/29072182/social-challenges-of-contemporary-psychiatry
#12
N Bouras
Psychiatry and society are interrelated and the biopsychosocial model continues to dominate the clinical psychiatric practice. Some doubts have been expressed in recent years about the value and the wide acceptance of the biopsychosocial model. Ghaemi (2009)1 considers it to be anti-humanistic and advocates the use of less eclectic, less generic, and less vague alternatives. The fundamental changes that have been witnessed in our times across the spectrum of biology, psychology and sociology have made necessary that a conceptual clarity should prevail...
July 2017: Psychiatrikē, Psychiatriki
https://www.readbyqxmd.com/read/29072179/the-role-of-chronobiology-as-transdisciplinary-field-of-research-application-to-psychiatry
#13
Okan Çalıyurt
Chronobiology is a field that studies the effects of time on biological systems. Periodicity is of particular interest. The master biological clock in the suprachiasmatic nucleus controls daily rhythms of core body temperature, rest-activity cycle, physiological and behavioral functions, psychomotor functions and mood in humans. The clock genes are involved in the generation of the circadian rhythms and the biological clock is synchronized to solar day by direct photic inputs. Various circadian rhythm abnormalities have been demonstrated in mood disorders such as unipolar depression, bipolar depression and seasonal affective disorder...
October 26, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/29038767/evaluation-of-plasma-cytokines-in-patients-with-cocaine-use-disorders-in-abstinence-identifies-transforming-growth-factor-alpha-tgf%C3%AE-as-a-potential-biomarker-of-consumption-and-dual-diagnosis
#14
Rosa Maza-Quiroga, Nuria García-Marchena, Pablo Romero-Sanchiz, Vicente Barrios, María Pedraz, Antonia Serrano, Raquel Nogueira-Arjona, Juan Jesus Ruiz, Maribel Soria, Rafael Campos, Julie Ann Chowen, Jesus Argente, Marta Torrens, Meritxell López-Gallardo, Eva María Marco, Fernando Rodríguez de Fonseca, Francisco Javier Pavón, Pedro Araos
BACKGROUND: Cocaine use disorder (CUD) is a complex health condition, especially when it is accompanied by comorbid psychiatric disorders (dual diagnosis). Dual diagnosis is associated with difficulties in the stratification and treatment of patients. One of the major challenges in clinical practice of addiction psychiatry is the lack of objective biological markers that indicate the degree of consumption, severity of addiction, level of toxicity and response to treatment in patients with CUD...
2017: PeerJ
https://www.readbyqxmd.com/read/29031921/disconnectionism-in-biological-psychiatry
#15
Aaron F Alexander-Bloch
No abstract text is available yet for this article.
November 15, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29021832/pharmacogenomics-in-the-treatment-of-mood-disorders-strategies-and-opportunities-for-personalized-psychiatry
#16
REVIEW
Azmeraw T Amare, Klaus Oliver Schubert, Bernhard T Baune
Personalized medicine (personalized psychiatry in a specific setting) is a new model towards individualized care, in which knowledge from genomics and other omic pillars (microbiome, epigenomes, proteome, and metabolome) will be combined with clinical data to guide efforts to new drug development and targeted prescription of the existing treatment options. In this review, we summarize pharmacogenomic studies in mood disorders that may lay the foundation towards personalized psychiatry. In addition, we have discussed the possible strategies to integrate data from omic pillars as a future path to personalized psychiatry...
September 2017: EPMA Journal
https://www.readbyqxmd.com/read/28991256/genome-wide-association-analysis-identifies-30-new-susceptibility-loci-for-schizophrenia
#17
Zhiqiang Li, Jianhua Chen, Hao Yu, Lin He, Yifeng Xu, Dai Zhang, Qizhong Yi, Changgui Li, Xingwang Li, Jiawei Shen, Zhijian Song, Weidong Ji, Meng Wang, Juan Zhou, Boyu Chen, Yahui Liu, Jiqiang Wang, Peng Wang, Ping Yang, Qingzhong Wang, Guoyin Feng, Benxiu Liu, Wensheng Sun, Baojie Li, Guang He, Weidong Li, Chunling Wan, Qi Xu, Wenjin Li, Zujia Wen, Ke Liu, Fang Huang, Jue Ji, Stephan Ripke, Weihua Yue, Patrick F Sullivan, Michael C O'Donovan, Yongyong Shi
We conducted a genome-wide association study (GWAS) with replication in 36,180 Chinese individuals and performed further transancestry meta-analyses with data from the Psychiatry Genomics Consortium (PGC2). Approximately 95% of the genome-wide significant (GWS) index alleles (or their proxies) from the PGC2 study were overrepresented in Chinese schizophrenia cases, including ∼50% that achieved nominal significance and ∼75% that continued to be GWS in the transancestry analysis. The Chinese-only analysis identified seven GWS loci; three of these also were GWS in the transancestry analyses, which identified 109 GWS loci, thus yielding a total of 113 GWS loci (30 novel) in at least one of these analyses...
November 2017: Nature Genetics
https://www.readbyqxmd.com/read/28986182/on-the-transdiagnostic-nature-of-peripheral-biomarkers-in-major-psychiatric-disorders-a-systematic-review
#18
REVIEW
Jairo Vinícius Pinto, Thiago C Moulin, Olavo B Amaral
The search for biomarkers has been a leading endeavor in biological psychiatry. To analyze its evolution over the years, we performed a systematic review to evaluate (a) the most studied peripheral molecular markers in major psychiatric disorders, (b) the main features of studies proposing them as biomarkers and (c) whether their patterns of variation are similar across disorders. Of the six molecules most commonly studied as plasmatic markers of schizophrenia, major depressive disorder or bipolar disorder, five (BDNF, TNF-alpha, IL-6, C-reactive protein and cortisol) were the same across diagnoses...
October 3, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28977440/advancing-psychiatric-genetics-through-dissecting-heterogeneity
#19
Karen Hodgson, Peter McGuffin, Cathryn M Lewis
There has been substantial progress in psychiatric genetics in recent years, through collaborative efforts to build large samples sizes for case/control analyses for a number of psychiatric disorders. The identification of replicated trait-associated genomic loci represents a large stride forward in a field where little is known about the biological processes involved in disorder. As researchers build on this early foundation, they are beginning to advance the field towards more fine-grained approaches that interrogate the many sources of heterogeneity within psychiatric genetics that can obscure the identification of genotypic influences on disorder...
October 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28969442/psychiatric-genomics-an-update-and-an-agenda
#20
Patrick F Sullivan, Arpana Agrawal, Cynthia M Bulik, Ole A Andreassen, Anders D Børglum, Gerome Breen, Sven Cichon, Howard J Edenberg, Stephen V Faraone, Joel Gelernter, Carol A Mathews, Caroline M Nievergelt, Jordan W Smoller, Michael C O'Donovan
The Psychiatric Genomics Consortium (PGC) is the largest consortium in the history of psychiatry. This global effort is dedicated to rapid progress and open science, and in the past decade it has delivered an increasing flow of new knowledge about the fundamental basis of common psychiatric disorders. The PGC has recently commenced a program of research designed to deliver "actionable" findings-genomic results that 1) reveal fundamental biology, 2) inform clinical practice, and 3) deliver new therapeutic targets...
October 3, 2017: American Journal of Psychiatry
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