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PTSD genetics

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https://www.readbyqxmd.com/read/29283198/a-classical-twin-study-of-ptsd-symptoms-and-resilience-evidence-for-a-single-spectrum-of-vulnerability-to-traumatic-stress
#1
Erika J Wolf, Mark W Miller, Danielle R Sullivan, Ananda B Amstadter, Karen S Mitchell, Jack Goldberg, Kathryn M Magruder
BACKGROUND: To examine shared genetic and environmental risk factors across PTSD symptoms and resilience. METHODS: Classical twin study of 2010-2012 survey data conducted among 3,318 male twin pairs in the Vietnam Era Twin Registry. Analyses included: (a) estimates of genetic and environmental influences on PTSD symptom severity (as measured by the PTSD Checklist) and resilience (assessed with the Connor-Davidson Resilience Scale-10); (b) development of a latent model of traumatic stress, spanning both PTSD and resilience; and (c) estimates of genetic and environmental influences on this spectrum...
December 28, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/29280387/serotonin-transporter-5-httlpr-genotype-is-associated-with-intrusion-and-avoidance-symptoms-of-dsm-5-posttraumatic-stress-disorder-ptsd-in-chinese-earthquake-survivors
#2
Luobing Liu, Li Wang, Chengqi Cao, Xing Cao, Ye Zhu, Ping Liu, Shu Luo, Jianxin Zhang
BACKGROUND AND OBJECTIVES: Prior studies have found that the serotonin transporter gene-linked polymorphic region (5-HTTLPR) interacts with trauma exposure to increase general risk for Posttraumatic Stress Disorder (PTSD). However, there is little knowledge about the effects of the interaction on distinct symptom clusters of PTSD. This study aimed to investigate the relation between the interaction of 5-HTTLPR and earthquake-related exposures and a contemporary phenotypic model of DSM-5 PTSD symptoms in a traumatised adult sample from China...
December 27, 2017: Anxiety, Stress, and Coping
https://www.readbyqxmd.com/read/29231765/imaging-corticotropin-releasing-factor-and-nociceptin-in-addiction-and-ptsd-models
#3
Savannah Tollefson, Michael Himes, Rajesh Narendran
Addiction is composed of three phases: intoxication, withdrawal, and craving. Negative reinforcement, strengthening a behaviour by removing an aversive stimulus, has been associated with the withdrawal phase. An imbalance of neurotransmitters within the brain's stress (nociceptin, neuropeptide Y) and anti-stress (CRF, norepinephrine, etc.) system is attributed to negatively reinforced compulsive behaviours associated with relapse. Similarly, post-traumatic stress disorder is characterized by an overactive stress system...
December 12, 2017: International Review of Psychiatry
https://www.readbyqxmd.com/read/29217296/smaller-hippocampal-volume-in-posttraumatic-stress-disorder-a-multisite-enigma-pgc-study-subcortical-volumetry-results-from-posttraumatic-stress-disorder-consortia
#4
Mark W Logue, Sanne J H van Rooij, Emily L Dennis, Sarah L Davis, Jasmeet P Hayes, Jennifer S Stevens, Maria Densmore, Courtney C Haswell, Jonathan Ipser, Saskia B J Koch, Mayuresh Korgaonkar, Lauren A M Lebois, Matthew Peverill, Justin T Baker, Premika S W Boedhoe, Jessie L Frijling, Staci A Gruber, Ilan Harpaz-Rotem, Neda Jahanshad, Sheri Koopowitz, Ifat Levy, Laura Nawijn, Lauren O'Connor, Miranda Olff, David H Salat, Margaret A Sheridan, Jeffrey M Spielberg, Mirjam van Zuiden, Sherry R Winternitz, Jonathan D Wolff, Erika J Wolf, Xin Wang, Kristen Wrocklage, Chadi G Abdallah, Richard A Bryant, Elbert Geuze, Tanja Jovanovic, Milissa L Kaufman, Anthony P King, John H Krystal, Jim Lagopoulos, Maxwell Bennett, Ruth Lanius, Israel Liberzon, Regina E McGlinchey, Katie A McLaughlin, William P Milberg, Mark W Miller, Kerry J Ressler, Dick J Veltman, Dan J Stein, Kathleen Thomaes, Paul M Thompson, Rajendra A Morey
BACKGROUND: Many studies report smaller hippocampal and amygdala volumes in posttraumatic stress disorder (PTSD), but findings have not always been consistent. Here, we present the results of a large-scale neuroimaging consortium study on PTSD conducted by the Psychiatric Genomics Consortium (PGC)-Enhancing Neuroimaging Genetics through Meta-Analysis (ENIGMA) PTSD Working Group. METHODS: We analyzed neuroimaging and clinical data from 1868 subjects (794 PTSD patients) contributed by 16 cohorts, representing the largest neuroimaging study of PTSD to date...
September 20, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29203717/hsp90-and-fkbp51-complex-regulators-of-psychiatric-diseases
#5
REVIEW
Marangelie Criado-Marrero, Theo Rein, Elisabeth B Binder, James T Porter, John Koren, Laura J Blair
Mood disorders affect nearly a quarter of the world's population. Therefore, understanding the molecular mechanisms underlying these conditions is of great importance. FK-506 binding protein 5 (FKBP5) encodes the FKBP51 protein, a heat shock protein 90 kDa (Hsp90) co-chaperone, and is a risk factor for several affective disorders. FKBP51, in coordination with Hsp90, regulates glucocorticoid receptor (GR) activity via a short negative feedback loop. This signalling pathway rapidly restores homeostasis in the hypothalamic-pituitary-adrenal (HPA) axis following stress...
January 19, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29199929/healing-a-sick-world-psychiatric-medicine-and-the-atomic-age
#6
Ran Zwigenberg
The onset of nuclear warfare in Hiroshima and Nagasaki had far-reaching implications for the world of medicine. The study of the A-bomb and its implications led to the launching of new fields and avenues of research, most notably in genetics and radiation studies. Far less understood and under-studied was the impact of nuclear research on psychiatric medicine. Psychological research, however, was a major focus of post-war military and civilian research into the bomb. This research and the perceived revolutionary impact of atomic energy and warfare on society, this paper argues, played an important role in the global development of post-war psychiatry...
January 2018: Medical History
https://www.readbyqxmd.com/read/29187748/genome-wide-association-study-of-subcortical-brain-volume-in-ptsd-cases-and-trauma-exposed-controls
#7
Rajendra A Morey, Sarah L Davis, Melanie E Garrett, Courtney C Haswell, Christine E Marx, Jean C Beckham, Gregory McCarthy, Michael A Hauser, Allison E Ashley-Koch
Depending on the traumatic event, a significant fraction of trauma survivors subsequently develop PTSD. The additional variability in PTSD risk is expected to arise from genetic susceptibility. Unfortunately, several genome-wide association studies (GWAS) have failed to identify a consistent genetic marker for PTSD. The heritability of intermediate phenotypes such as regional brain volumes is often 80% or higher. We conducted a GWAS of subcortical brain volumes in a sample of recent military veteran trauma survivors (n = 157), grouped into PTSD (n = 66) and non-PTSD controls (n = 91)...
November 30, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/29187730/genome-wide-analysis-in-uk-biobank-identifies-four-loci-associated-with-mood-instability-and-genetic-correlation-with-major-depressive-disorder-anxiety-disorder-and-schizophrenia
#8
Joey Ward, Rona J Strawbridge, Mark E S Bailey, Nicholas Graham, Amy Ferguson, Donald M Lyall, Breda Cullen, Laura M Pidgeon, Jonathan Cavanagh, Daniel F Mackay, Jill P Pell, Michael O'Donovan, Valentina Escott-Price, Daniel J Smith
Mood instability is a core clinical feature of affective and psychotic disorders. In keeping with the Research Domain Criteria approach, it may be a useful construct for identifying biology that cuts across psychiatric categories. We aimed to investigate the biological validity of a simple measure of mood instability and evaluate its genetic relationship with several psychiatric disorders, including major depressive disorder (MDD), bipolar disorder (BD), schizophrenia, attention deficit hyperactivity disorder (ADHD), anxiety disorder and post-traumatic stress disorder (PTSD)...
November 30, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/29178946/a-putative-causal-relationship-between-genetically-determined-female-body-shape-and-posttraumatic-stress-disorder
#9
Renato Polimanti, Ananda B Amstadter, Murray B Stein, Lynn M Almli, Dewleen G Baker, Laura J Bierut, Bekh Bradley, Lindsay A Farrer, Eric O Johnson, Anthony King, Henry R Kranzler, Adam X Maihofer, John P Rice, Andrea L Roberts, Nancy L Saccone, Hongyu Zhao, Israel Liberzon, Kerry J Ressler, Caroline M Nievergelt, Karestan C Koenen, Joel Gelernter
BACKGROUND: The nature and underlying mechanisms of the observed increased vulnerability to posttraumatic stress disorder (PTSD) in women are unclear. METHODS: We investigated the genetic overlap of PTSD with anthropometric traits and reproductive behaviors and functions in women. The analysis was conducted using female-specific summary statistics from large genome-wide association studies (GWAS) and a cohort of 3577 European American women (966 PTSD cases and 2611 trauma-exposed controls)...
November 27, 2017: Genome Medicine
https://www.readbyqxmd.com/read/29166674/unpredictable-chronic-mild-stress-differentially-impairs-social-and-contextual-discrimination-learning-in-two-inbred-mouse-strains
#10
Michiel van Boxelaere, Jason Clements, Patrick Callaerts, Rudi D'Hooge, Zsuzsanna Callaerts-Vegh
Alterations in the social and cognitive domain are considered important indicators for increased disability in many stress-related disorders. Similar impairments have been observed in rodents chronically exposed to stress, mimicking potential endophenotypes of stress-related psychopathologies such as major depression disorder (MDD), anxiety, conduct disorder, and posttraumatic stress disorder (PTSD). Data from numerous studies suggest that deficient plasticity mechanisms in hippocampus (HC) and prefrontal cortex (PFC) might underlie these social and cognitive deficits...
2017: PloS One
https://www.readbyqxmd.com/read/29161523/does-acute-propranolol-treatment-prevent-posttraumatic-stress-disorder-anxiety-and-depression-in-children-with-burns
#11
Laura Rosenberg, Marta Rosenberg, Sherri Sharp, Christopher R Thomas, Helen F Humphries, Charles E Holzer, David N Herndon, Walter J Meyer
OBJECTIVE: This study examined whether acute propranolol treatment prevented posttraumatic stress disorder (PTSD), anxiety, and depression in children hospitalized in the pediatric intensive care unit for large burns. We hypothesized that the prevalence of PTSD, anxiety, and depression would be significantly less in the propranolol than nonpropranolol groups. METHODS: Children who had previously participated in a randomized controlled clinical trial of acute propranolol and nonpropranolol controls were invited to participate in long-term follow-up interviews...
November 21, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/29150144/atypical-depression-and-non-atypical-depression-is-hpa-axis-function-a-biomarker-a-systematic-review
#12
REVIEW
Mario F Juruena, Mariia Bocharova, Bruno Agustini, Allan H Young
BACKGROUND: The link between the abnormalities of the Hypothalamic-pituitary-adrenal (HPA) axis and depression has been one of the most consistently reported findings in psychiatry. At the same time, multiple studies have demonstrated a stronger association between the increased activation of HPA-axis and melancholic, or endogenous depression subtype. This association has not been confirmed for the atypical subtype, and some researchers have suggested that as an antinomic depressive subtype, it may be associated with the opposite type, i...
October 6, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29082582/problematic-alcohol-use-associates-with-sodium-channel-and-clathrin-linker-1-sclt1-in-trauma-exposed-populations
#13
Lynn M Almli, Adriana Lori, Jacquelyn L Meyers, Jaemin Shin, Negar Fani, Adam X Maihofer, Caroline M Nievergelt, Alicia K Smith, Kristina B Mercer, Kimberly Kerley, Jennifer M Leveille, Hao Feng, Duna Abu-Amara, Janine D Flory, Rachel Yehuda, Charles R Marmar, Dewleen G Baker, Bekh Bradley, Karestan C Koenen, Karen N Conneely, Kerry J Ressler
Excessive alcohol use is extremely prevalent in the United States, particularly among trauma-exposed individuals. While several studies have examined genetic influences on alcohol use and related problems, this has not been studied in the context of trauma-exposed populations. We report results from a genome-wide association study of alcohol consumption and associated problems as measured by the alcohol use disorders identification test (AUDIT) in a trauma-exposed cohort. Results indicate a genome-wide significant association between total AUDIT score and rs1433375 [N = 1036, P = 2...
October 30, 2017: Addiction Biology
https://www.readbyqxmd.com/read/29081351/integrating-biological-treatment-mechanisms-into-randomized-clinical-trials-design-of-progress-prolonged-exposure-and-sertraline-trial
#14
Sheila A M Rauch, Naomi M Simon, H Myra Kim, Ron Acierno, Anthony P King, Sonya B Norman, Margaret R Venners, Katherine Porter, K Luan Phan, Peter W Tuerk, Carolyn Allard, Israel Liberzon, Barbara O Rothbaum, Brian Martis, Murray B Stein, Charles W Hoge
Increased emphasis on mechanisms of treatment effectiveness, biomarker predictors, and objective indicators of treatment response has sparked interest in integrated, translational treatment outcomes trials. The PROlonGed ExpoSure and Sertraline Trial (PROGrESS) is one such randomized controlled trial (RCT) focused on a key question in clinical management of posttraumatic stress disorder (PTSD) - the comparative and combined effectiveness of medication and psychotherapy. PROGrESS employs a state of the art trial design to examine psychotherapy and medication effects across three conditions: 1) Prolonged Exposure (PE) plus pill placebo, 2) Sertraline (SERT) plus Enhanced Medication Management (EMM), and 3) Combined treatment (PE/SERT)...
October 29, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/29054677/expression-of-the-ppm1f-gene-is-regulated-by-stress-and-associated-with-anxiety-and-depression
#15
Aliza P Wingo, Eric R Velasco, Antonio Florido, Adriana Lori, Dennis C Choi, Tanja Jovanovic, Kerry J Ressler, Raül Andero
BACKGROUND: Molecular mechanisms underlying psychological sequelae of exposure to stressful experiences, such as posttraumatic stress disorder (PTSD) and depression, are not well understood. METHODS: Using convergent evidence from animal and human transcriptomic and genomic studies, we aimed to identify genetic mechanisms underlying depression and anxiety after traumatic experiences. RESULTS: From a transcriptome-wide analysis in mice, we found the Ppm1f gene to be differentially expressed in the amygdala and medial prefrontal cortex (mPFC) a week after immobilization stress...
August 30, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28965303/impact-of-gender-on-child-and-adolescent-ptsd
#16
REVIEW
Kristie Garza, Tanja Jovanovic
PURPOSE OF REVIEW: This review examines the recent literature on biological factors that influence sex differences in posttraumatic stress disorder (PTSD) during childhood and adolescence, focusing on neurobiological, hormonal, and genetic factors that may increase risk in girls. RECENT FINDINGS: More than 60% of children and adolescents are exposed to traumatic events, and many develop PTSD. There is increasing recognition of gender differences in PTSD, with women having double the rates of the disorder compared to men...
September 30, 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28942195/short-overview-on-metabolomic-approach-and-redox-changes-in-psychiatric-disorders
#17
REVIEW
Gordana Nedic Erjavec, Marcela Konjevod, Matea Nikolac Perkovic, Dubravka Svob Strac, Lucija Tudor, Coral Barbas, Tilman Grune, Neven Zarkovic, Nela Pivac
Schizophrenia, depression and posttraumatic stress disorder (PTSD) are severe mental disorders and complicated diagnostic entities, due to their phenotypic, biological and genetic heterogeneity, unknown etiology, and poorly understood alterations in biological pathways and biological mechanisms. Disturbed homeostasis between overproduction of oxidant species, overcoming redox regulation and a lack of cellular antioxidant defenses, resulting in free radical-mediated pathology and subsequent neurotoxicity contributes to development of depression, schizophrenia and PTSD, their heterogeneous clinical presentation and resistance to treatment...
September 6, 2017: Redox Biology
https://www.readbyqxmd.com/read/28888533/an-overview-of-posttraumatic-stress-disorder-genetic-studies-by-analyzing-and-integrating-genetic-data-into-genetic-database-ptsdgene
#18
REVIEW
Kunlin Zhang, Susu Qu, Suhua Chang, Gen Li, Chengqi Cao, Kechi Fang, Miranda Olff, Li Wang, Jing Wang
Posttraumatic stress disorder (PTSD) is a debilitating psychiatric syndrome with complex etiology. Studies aiming to explore genetic susceptibility and environmental triggers of PTSD have been increasing. However, the results are limited and highly heterogeneous. To understand the genetic study status of PTSD and explore more reliable candidates, we obtained 105 PTSD related genetic studies by comprehensively literature searching and filtering 1762 studies. Detailed phenotype and sample information for each study and association results for each genetic marker were extracted...
September 6, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28867284/crp-polymorphisms-and-dna-methylation-of-the-aim2-gene-influence-associations-between-trauma-exposure-ptsd-and-c-reactive-protein
#19
M W Miller, H Maniates, E J Wolf, M W Logue, S A Schichman, A Stone, W Milberg, R McGlinchey
BACKGROUND: Recent studies have implicated inflammatory processes in the pathophysiology of posttraumatic stress disorder (PTSD). C-reactive protein (CRP) is a widely-used measure of peripheral inflammation, but little is known about the genetic and epigenetic factors that influence blood levels of C-reactive protein (CRP) in individuals with PTSD. METHODS: Participants were 286 U.S. military veterans of post-9/11 conflicts (57% with current PTSD). Analyses focused on single nucleotide polymorphisms (SNPs) in the CRP gene and DNA methylation at cg10636246 in AIM2-a locus recently linked to CRP levels through results from a large-scale epigenome-wide association study...
January 2018: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28813320/the-genetics-and-epigenetics-of-ptsd-overview-recent-advances-and-future-directions
#20
REVIEW
Christina M Sheerin, Mackenzie J Lind, Kaitlin E Bountress, Nicole R Nugent, Ananda B Amstadter
This paper provides a brief summary and commentary on the growing literature and current developments related to the genetic underpinnings of posttraumatic stress disorder (PTSD). We first briefly provide an overview of the behavioral genetic literature on PTSD, followed by a short synopsis of the substantial candidate gene literature with a focus on genes that have been meta-analyzed. We then discuss the genome-wide association studies (GWAS) that have been conducted, followed by an introduction to other molecular platforms used in PTSD genomic studies, such as epigenetic and expression approaches...
April 2017: Current Opinion in Psychology
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