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PTSD genetics

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https://www.readbyqxmd.com/read/29760667/a-drd2-annk1-comt-interaction-consisting-of-functional-variants-confers-risk-of-post-traumatic-stress-disorder-in-traumatized-chinese
#1
Kunlin Zhang, Li Wang, Chengqi Cao, Gen Li, Ruojiao Fang, Ping Liu, Shu Luo, Xiangyang Zhang, Israel Liberzon
Objective: Post-traumatic stress disorder (PTSD) is a trauma- and stress-related psychiatric syndrome that occurs after exposure to extraordinary stressors. The neurotransmitter dopamine (DA) plays important roles in neurobiological processes like reward and stress, and a link between PTSD and the dopaminergic system has been reported. Thus, the investigation of an association between PTSD and gene-gene interaction (epistasis) within dopaminergic genes could uncover the genetic basis of dopamine-related PTSD symptomatology and contribute to precision medicine...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29754704/genetic-advances-in-post-traumatic-stress-disorder
#2
Hernan Felipe Guillén-Burgos, Karol Gutiérrez-Ruiz
Post-traumatic stress disorder, or PTSD, is a condition that affects a subgroup of individuals that have suffered a previous traumatic event capable of generating changes at a psychological and behavioural level. These changes affect the personal, family, and social environment of those who suffer from this condition. Different genes have been identified as risk markers for development of this disorder. The population heterogeneity and individual differences (genetic and environmental) of each subject have made it difficult to identify valid markers in previous studies...
April 2018: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/29745889/potentially-traumatic-events-ptsd-and-post-traumatic-stress-spectrum-in-patients-with-fibromyalgia
#3
Ciro Conversano, Claudia Carmassi, Carlo A Bertelloni, Laura Marchi, Tommaso Micheloni, Manuel G Carbone, Giovanni Pagni, Claudia Tagliarini, Gabriele Massimetti, Laura M Bazzichi, Liliana Dell'Osso
OBJECTIVES: Fibromyalgia (FM) is defined as a severe, chronic, non-articular rheumatic condition characterised by widespread musculoskeletal pain, hyperalgesia and generalised tender points, in the absence of inflammatory or structural musculoskeletal abnormalities. Pain is the predominant symptom, allodynia and hyperalgesia are common signs. Extreme fatigue, impaired cognition and non-restorative sleeping difficulties coexist in addition to other somatic symptoms. Several studies suggest there is a meaningful relationship between FM and the psychological symptoms of depression and post-traumatic stress disorder (PTSD)...
April 24, 2018: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29689343/leveraging-genetics-to-enhance-the-efficacy-of-ptsd-pharmacotherapies
#4
REVIEW
Mark W Miller
Progress in PTSD pharmacotherapy has lagged far behind that of other major mental illnesses. Unfortunately, due to the enormous costs and lengthy process involved in bringing drugs to market, delivering new treatments to patients with PTSD in the near future will remain a challenge. However, by capitalizing on recent advances in the pharmacogenetics of antidepressants, precision psychiatry approaches can be leveraged to optimize the delivery of currently-available medications in a fraction of the time and cost required to develop novel therapeutics...
April 21, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29659106/individual-treatment-selection-for-patients-with-posttraumatic-stress-disorder
#5
Anne-Katharina Deisenhofer, Jaime Delgadillo, Julian A Rubel, Jan R Böhnke, Dirk Zimmermann, Brian Schwartz, Wolfgang Lutz
BACKGROUND: Trauma-focused cognitive behavioral therapy (Tf-CBT) and eye movement desensitization and reprocessing (EMDR) are two highly effective treatment options for posttraumatic stress disorder (PTSD). Yet, on an individual level, PTSD patients vary substantially in treatment response. The aim of the paper is to test the application of a treatment selection method based on a personalized advantage index (PAI). METHOD: The study used clinical data for patients accessing treatment for PTSD in a primary care mental health service in the north of England...
April 16, 2018: Depression and Anxiety
https://www.readbyqxmd.com/read/29627597/genetic-pathways-to-posttraumatic-stress-disorder-and-depression-in-children-investigation-of-catechol-o-methyltransferase-comt-val158met-using-different-ptsd-diagnostic-models
#6
BreAnne A Danzi, Annette M La Greca
The catechol-O-methyltransferase (COMT) Val158Met polymorphism has been linked to PTSD, although findings have been inconsistent. Recently, different diagnostic criteria for PTSD have been introduced by ICD-11 and DSM-5, including separate criteria for adults and for young children (i.e., the preschool criteria). The preschool criteria may be applicable to older children as well. This study is the first to examine COMT associations with depression and PTSD, using new diagnostic models, in school-age children (7-11 years) exposed to a natural disaster...
March 27, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29623448/recent-genetics-and-epigenetics-approaches-to-ptsd
#7
REVIEW
Nikolaos P Daskalakis, Chuda M Rijal, Christopher King, Laura M Huckins, Kerry J Ressler
PURPOSE OF REVIEW: Following a life-threatening traumatic exposure, about 10% of those exposed are at considerable risk for developing posttraumatic stress disorder (PTSD), a severe and disabling syndrome characterized by uncontrollable intrusive memories, nightmares, avoidance behaviors, and hyperarousal in addition to impaired cognition and negative emotion symptoms. This review will explore recent genetic and epigenetic approaches to PTSD that explain some of the differential risk following trauma exposure...
April 5, 2018: Current Psychiatry Reports
https://www.readbyqxmd.com/read/29594645/the-role-of-suboptimal-mitochondrial-function-in-vulnerability-to-post-traumatic-stress-disorder
#8
REVIEW
Graeme Preston, Faisal Kirdar, Tamas Kozicz
Post-traumatic stress disorder remains the most significant psychiatric condition associated with exposure to a traumatic event, though rates of traumatic event exposure far outstrip incidence of PTSD. Mitochondrial dysfunction and suboptimal mitochondrial function have been increasingly implicated in several psychopathologies, and recent genetic studies have similarly suggested a pathogenic role of mitochondria in PTSD. Mitochondria play a central role in several physiologic processes underlying PTSD symptomatology, including abnormal fear learning, brain network activation, synaptic plasticity, steroidogenesis, and inflammation...
March 28, 2018: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29555185/genomic-approaches-to-posttraumatic-stress-disorder-the-psychiatric-genomic-consortium-initiative
#9
REVIEW
Caroline M Nievergelt, Allison E Ashley-Koch, Shareefa Dalvie, Michael A Hauser, Rajendra A Morey, Alicia K Smith, Monica Uddin
Posttraumatic stress disorder (PTSD) after exposure to a traumatic event is a highly prevalent psychiatric disorder. Heritability estimates from twin studies as well as from recent molecular data (single nucleotide polymorphism-based heritability) indicate moderate to high heritability, yet robust genetic variants for PTSD have not yet been identified and the genetic architecture of this polygenic disorder remains largely unknown. To date, fewer than 10 large-scale genome-wide association studies of PTSD have been published, with findings that highlight the unique challenges for PTSD genomics, including a complex diagnostic entity with contingency of PTSD diagnosis on trauma exposure and the large genetic diversity of the study populations...
February 2, 2018: Biological Psychiatry
https://www.readbyqxmd.com/read/29551049/correlations-of-four-genetic-single-nucleotide-polymorphisms-in-brain-derived-neurotrophic-factor-with-posttraumatic-stress-disorder
#10
Jun-Cheng Guo, Yi-Jun Yang, Min Guo, Xiao-Dan Wang, Yang Juan, Yun-Suo Gao, Lin-Qiu Fu, Xiang-Ling Jiang, Lin-Mei Fu, Tao Huang
Objective: To investigate the correlations of four genetic single nucleotide polymorphisms (SNPs) of brain-derived neurotrophic factor (BDNF) with posttraumatic stress disorder (PTSD). Methods: A total of 300 patients with sporadic PTSD and 150 healthy subjects (the control group) were selected according to the diagnostic criteria of PTSD (DSM-IV), and the genotypes of the BDNF SNPs G-712A, C270T, rs6265, and rs7103411 were detected by polymerase chain reaction and direct DNA sequencing to determine intergroup differences in the genotypes and allele frequencies; the p values were corrected with the permutation test...
March 19, 2018: Psychiatry Investigation
https://www.readbyqxmd.com/read/29490380/-attention-deficit-hyperactivity-disorder-adhd-in-adult-psychiatry-data-on-12-month-prevalence-risk-factors-and-comorbidity
#11
Matthias Miesch, Arno Deister
AIMS AND METHODS: To examine the 12-month prevalence, risk factors, and comorbidity of ADHD in a collective of adult psychiatric patients admitted to an open general ward in a psychiatric hospital in Schleswig-Holstein (Germany) over a period of one year (n = 166). RESULTS: The 12 months prevalence of ADHD was 59.0 % (severe symptomatology: 33.1 %), high rates of comorbid disorders (92.9 % depression, 5.1 % bipolar disorder, 28.6 % anxiety disorder, 30...
February 28, 2018: Fortschritte der Neurologie-Psychiatrie
https://www.readbyqxmd.com/read/29483346/the-functional-highly-sensitive-brain-a-review-of-the-brain-circuits-underlying-sensory-processing-sensitivity-and-seemingly-related-disorders
#12
REVIEW
Bianca Acevedo, Elaine Aron, Sarah Pospos, Dana Jessen
During the past decade, research on the biological basis of sensory processing sensitivity (SPS)-a genetically based trait associated with greater sensitivity and responsivity to environmental and social stimuli-has burgeoned. As researchers try to characterize this trait, it is still unclear how SPS is distinct from seemingly related clinical disorders that have overlapping symptoms, such as sensitivity to the environment and hyper-responsiveness to incoming stimuli. Thus, in this review, we compare the neural regions implicated in SPS with those found in fMRI studies of-Autism Spectrum Disorder (ASD), Schizophrenia (SZ) and Post-Traumatic Stress Disorder (PTSD) to elucidate the neural markers and cardinal features of SPS versus these seemingly related clinical disorders...
April 19, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29463164/apolipoprotein-e-apoe-%C3%AE%C2%B54-genotype-is-associated-with-elevated-psychiatric-distress-in-veterans-with-a-history-of-mild-to-moderate-traumatic-brain-injury
#13
Victoria C Merritt, Alexandra L Clark, Scott F Sorg, Nicole D Evangelista, Madeleine Werhane, Mark W Bondi, Dawn M Schiehser, Lisa Delano-Wood
Since few studies have examined the relationship between the APOE gene and clinical outcomes following military-related traumatic brain injury (TBI), we aimed to determine whether the ε4 allele of the APOE gene influences neuropsychiatric symptoms in Veterans with a history of mild to moderate TBI. Participants included 133 Veterans (TBI=79, military controls [MC]=54) who underwent APOE genotyping and were divided into ε4+ (TBI=18, MC=15) and ε4- (TBI=61, MC=39) groups. All participants underwent evaluation of psychological distress using the Beck Depression Inventory-II (BDI-II), Beck Anxiety Inventory (BAI), and PTSD Checklist-Military Version (PCL-M)...
February 20, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29415604/long-term-programing-of-psychopathology-like-behaviors-in-male-rats-by-peripubertal-stress-depends-on-individual-s-glucocorticoid-responsiveness-to-stress
#14
Sophie E Walker, Carmen Sandi
Experience of adversity early in life and dysregulation of hypothalamus-pituitary-adrenocortical (HPA) axis activity are risk factors often independently associated with the development of psychopathological disorders, including depression, PTSD and pathological aggression. Additional evidence suggests that in combination these factors may interact to shape the development and expression of psychopathology differentially, though little is known about underlying mechanisms. Here, we studied the long-term consequences of early life stress exposure on individuals with differential constitutive glucocorticoid responsiveness to repeated stressor exposure, assessing both socio-affective behaviors and brain activity in regions sensitive to pathological alterations following stress...
February 7, 2018: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/29362489/genetic-variant-in-cacna1c-is-associated-with-ptsd-in-traumatized-police-officers
#15
Izabela M Krzyzewska, Judith B M Ensink, Laura Nawijn, Adri N Mul, Saskia B Koch, Andrea Venema, Vinod Shankar, Jessie L Frijling, Dirk J Veltman, Ramon J L Lindauer, Miranda Olff, Marcel M A M Mannens, Mirjam van Zuiden, Peter Henneman
Posttraumatic stress disorder (PTSD) is a debilitating psychiatric disorder that may develop after a traumatic event. Here we aimed to identify epigenetic and genetic loci associated with PTSD. We included 73 traumatized police officers with extreme phenotypes regarding symptom severity despite similar trauma history: n = 34 had PTSD and n = 39 had minimal PTSD symptoms. Epigenetic and genetic profiles were based on the Illumina HumanMethylation450 BeadChip. We searched for differentially methylated probes (DMPs) and differentially methylated regions (DMRs)...
February 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29353055/pituitary-adenylate-cyclase-activating-polypeptide-pacap-signaling-in-the-prefrontal-cortex-modulates-cued-fear-learning-but-not-spatial-working-memory-in-female-rats
#16
Adam J Kirry, Matthew R Herbst, Sarah E Poirier, Michelle M Maskeri, Amy C Rothwell, Robert C Twining, Marieke R Gilmartin
A genetic polymorphism within the gene encoding the pituitary adenylate cyclase- activating polypeptide (PACAP) receptor type I (PAC1R) has recently been associated with hyper-reactivity to threat-related cues in women, but not men, with post-traumatic stress disorder (PTSD). PACAP is a highly conserved peptide, whose role in mediating adaptive physiological stress responses is well established. Far less is understood about the contribution of PACAP signaling in emotional learning and memory, particularly the encoding of fear to discrete cues...
May 1, 2018: Neuropharmacology
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
#17
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...
February 2018: 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
#18
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...
May 2018: Anxiety, Stress, and Coping
https://www.readbyqxmd.com/read/29231765/imaging-corticotropin-releasing-factor-and-nociceptin-in-addiction-and-ptsd-models
#19
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 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
#20
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...
February 1, 2018: Biological Psychiatry
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