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Biological Markers for Anxiety Disorders, OCD and PTSD – a Consensus Statement

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The World Journal of Biological Psychiatry ISSN: 1562-2975 (Print) 1814-1412 (Online) Journal homepage: http://www.tandfonline.com/loi/iwbp20 Biological markers for anxiety disorders, OCD and PTSD – a consensus statement. Part I: Neuroimaging and genetics Borwin Bandelow, David Baldwin, Marianna Abelli, Carlo Altamura, Bernardo Dell’Osso, Katharina Domschke, Naomi A. Fineberg, Edna Grünblatt, Marek Jarema, Eduard Maron, David Nutt, Stefano Pini, Matilde M. Vaghi, Adam Wichniak, Gwyneth Zai & Peter Riederer To cite this article: Borwin Bandelow, David Baldwin, Marianna Abelli, Carlo Altamura, Bernardo Dell’Osso, Katharina Domschke, Naomi A. Fineberg, Edna Grünblatt, Marek Jarema, Eduard Maron, David Nutt, Stefano Pini, Matilde M. Vaghi, Adam Wichniak, Gwyneth Zai & Peter Riederer (2016): Biological markers for anxiety disorders, OCD and PTSD – a consensus statement. Part I: Neuroimaging and genetics, The World Journal of Biological Psychiatry, DOI: 10.1080/15622975.2016.1181783 To link to this article: http://dx.doi.org/10.1080/15622975.2016.1181783 Published online: 12 Jul 2016. Submit your article to this journal View related articles View Crossmark data Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=iwbp20 Download by: [Georg-August-Universitaet Goettingen] Date: 13 July 2016, At: 05:35 THE WORLD JOURNAL OF BIOLOGICAL PSYCHIATRY, 2016 http://dx.doi.org/10.1080/15622975.2016.1181783 WFSBP CONSENSUS PAPER Biological markers for anxiety disorders, OCD and PTSD – a consensus statement. Part I: Neuroimaging and genetics Borwin Bandelowa, David Baldwinb, Marianna Abellic, Carlo Altamurad, Bernardo Dell’Ossod, Katharina Domschkee, Naomi A. Finebergf, Edna Grunblatt€ e,g,h,i, Marek Jaremaj, Eduard Maronk,l,m, David Nuttm, Stefano Pinic, Matilde M. Vaghin, Adam Wichniakj, Gwyneth Zain,o,p,q and Peter Riederere,g,h aDepartment of Psychiatry and Psychotherapy, University of G€ottingen, Germany; bFaculty of Medicine, University of Southampton, Southampton, UK; cDepartment of Clinical and Experimental Medicine, Section of Psychiatry, University of Pisa, Italy; dDepartment of Psychiatry, University of Milan; Fondazione IRCCS Ca Granda, Ospedale Maggiore Policlinico, Milan, Italy; eDepartment of Psychiatry, Psychosomatics and Psychotherapy, University of Wuerzburg, Germany; fHertfordshire Partnership University NHS Foundation Trust and University of Hertfordshire, Rosanne House, Parkway, Welwyn Garden City, UK; gNeuroscience Center Zurich, University of Zurich and the ETH Zurich, Zurich,€ Switzerland; hDepartment of Child and Adolescent Psychiatry and Psychotherapy, Psychiatric Hospital, University of Zurich, Zurich,€ Switzerland; iZurich Center for Integrative Human Physiology, University of Zurich, Switzerland; jThird Department of Psychiatry, Institute of Psychiatry and Neurology, Warszawa, Poland; kNorth Estonia Medical Centre, Department of Psychiatry, Tallinn, Estonia; lDepartment of Psychiatry, University of Tartu, Estonia; mFaculty of Medicine, Department of Medicine, Centre for Neuropsychopharmacology, Division of Brain Sciences, Imperial College London, UK; nDepartment of Psychology and Behavioural and Clinical Neuroscience Institute, University of Cambridge, UK; oNeurogenetics Section, Centre for Addiction & Mental Health, Toronto, Canada; pFrederick W. Thompson Anxiety Disorders Centre, Department of Psychiatry, Sunnybrook Health Sciences Centre, Toronto, Canada; qInstitute of Medical Science and Department of Psychiatry, University of Toronto, Toronto, Canada ABSTRACT ARTICLE HISTORY Objectives: Biomarkers are defined as anatomical, biochemical or physiological traits that are spe- Received 14 April 2016 cific to certain disorders or syndromes. The objective of this paper is to summarise the current Accepted 19 April 2016 knowledge of biomarkers for anxiety disorders, obsessive–compulsive disorder (OCD) and post- traumatic stress disorder (PTSD). Methods: Findings in biomarker research were reviewed by a task force of international experts KEYWORDS Anxiety disorders; in the field, consisting of members of the World Federation of Societies for Biological Psychiatry obsessive–compulsive dis- Task Force on Biological Markers and of the European College of Neuropsychopharmacology order; post-traumatic stress Anxiety Disorders Research Network. disorder; neuroimaging; Results: The present article (Part I) summarises findings on potential biomarkers in neuroimaging genetic; neurobiology; studies, including structural brain morphology, functional magnetic resonance imaging and tech- review niques for measuring metabolic changes, including positron emission tomography and others. Furthermore, this review reports on the clinical and molecular genetic findings of family, twin, linkage, association and genome-wide association studies. Part II of the review focuses on neuro- chemistry, neurophysiology and neurocognition. Conclusions: Although at present, none of the putative biomarkers is sufficient and specific as a diagnostic tool, an abundance of high-quality research has accumulated that will improve our understanding of the neurobiological causes of anxiety disorders, OCD and PTSD. Abbreviations: 5-HT: Serotonin; 5-HTP: Hydroxytryptophan; 5-HTT: Serotonin transporter; 5- HTTLPR: Serotonin-transporter-linked polymorphic region; A-SepAD: Adult Separation Anxiety Disorder; ACC: Anterior cingulate cortex; ADORA2A: Adenosine A2A receptor; ADRN: Anxiety Disorders Research Network; ASIC/ACCN: Acid sensing ion channel; BA: Brodmann area; BDD: Body Dysmorphic Disorder; Beta-CIT: 2b-Carbomethoxy-3b-(4-iodophenyl)tropane; BDNF: Brain- derived neurotrophic factor; BOLD: Blood oxygenation level dependent; C-SepAD: Childhood Separation Anxiety Disorder; CBT: Cognitive-behavioural therapy; CCK: Cholecystokinin; CCK-4: Cholecystokinin tetrapeptide; CLOCK: Circadian locomotor output cycles kaput; CO2: Carbon diox- ide; COMT: Catechol-O-methyltransferase; CRH: Corticotropin-releasing hormone; CRHR1: Downloaded by [Georg-August-Universitaet Goettingen], [${individualUser.displayName}] at 05:35 13 July 2016 Corticotropin releasing hormone type 1 receptor; CSF: Cerebrospinal fluid; CYP2D6: Cytochrome P450 2D6; DAT (SLC6A3): Dopamine transporter; DISP1: Dispatched homolog 1 (drosophila); DLGAP1: Discs large (drosophila) homolog-associated protein 1; dlPFC: Dorsolateral prefrontal cor- tex; DRD2/3/4: Dopamine D2/D3/D4 receptor; DSM: Diagnostic and Statistical Manual of Mental Disorders; DTI: Diffusion tensor imaging; ECNP: European College of Neuropsychopharmacology; ECNP-NI: European College of Neuropsychopharmcology Network Initiative; FDG: Fludeoxyglucose; fMRI: Functional magnetic resonance imaging; GABA: Gamma-aminobutyric acid; GABHS: Group A b-hemolytic streptococci; GAD: Generalized Anxiety Disorder; GAD1: Glutamate CONTACT Prof. Dr. Borwin Bandelow [email protected] Department of Psychiatry and Psychotherapy, University Medical Centre Gottingen,€ von-Siebold-Str. 5, D-37075 G€ottingen, Germany ß 2016 Informa UK Limited, trading as Taylor & Francis Group 2 B. BANDELOW ET AL. decarboxylase 1; GPC6: Glypican 6; GRIK2: Glutamate receptor, ionotropic, kainate 2; GRIN2B: Glutamate receptor, ionotropic, N-methyl D-aspartate 2B; GWAS: Genome-wide association study; HMPAO: Hexamethylpropylene amine oxime; HPA axis: Hypothalamic-pituitary-adrenal axis; HTR1A/2A/3A/3B/6: Serotonin 1A/2A/3A/3B/6 receptor gene; IL: Interleukin; LOD: Logarithm of the odds; MAO: Monoamine oxidase; MAOA: Monoamine oxidase A; MRS: Magnetic resonance spec- troscopy; NAA: N-acetyl aspartate; NET (SLC6A2): Norepinephrine transporter; NPS: Neuropeptide S; NPSR1: Neuropeptide S receptor 1; NR3C1: Nuclear receptor subfamily group C, member 1; OCD: Obsessive–Compulsive Disorder; OCRDs: Obsessive–Compulsive and Related Disorders; OFC: Orbitofrontal cortex; OXTR: Oxytocin receptor; PANDAS: Paediatric autoimmune neuropsychiatric disorders associated with streptococcal infections; PCDH10: Protocadherin 10; PDA: Panic Disorder with or without Agoraphobia; PDE1A: Phosphodiesterase 1A; PEPSI: Proton echo planar spectro- scopic imaging; PET: Positron emission tomography; PTPRD: Protein-tyrosine phosphatase, recep- tor-type, delta; PTSD: Posttraumatic Stress Disorder; rCBF: Regional cerebral blood flow; RGS2: Regulator of G-protein signaling 2; ROIs: Regions of interest; SAD: Social Anxiety Disorder; SAPAP3: SAP90/PSD95-associated protein 3; SLC1A1: Glutamate transporter; SLC6A4 (5-HTT): Serotonin transporter; SLITRK1: SLIT- and NTRK-like family, member 1; SNP: Single nucleotide poly- morphism; SNRI: Serotonin norepinephrine reuptake inhibitor; SPECT: Single-photon emission computed tomography; SSRI: Selective serotonin reuptake inhibitor; TBSS: Tract-based spatial sta- tistics; TPH: Tryptophan hydroxylase; TPH2: Tryptophan hydroxylase 2; UTR: Untranslated region; uVNTR: Upstream variable number of tandem repeats; WFSBP: World Federation of Societies for Biological Psychiatry Introduction accompanied by agoraphobia. The majority of studies Biological markers for mental disorders have been on the neurobiology of anxiety disorders have been addressed by the World Federation of Societies for conducted with patients with PDA, perhaps because Biological Psychiatry (WFSBP) Task Force on Biological recruiting patients with this disorder is easy due to a Markers in a series of consensus initiatives on depres- high rate of PDA patients in clinical research settings. sion (Mossner et al. 2007), schizophrenia
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