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https://www.readbyqxmd.com/read/28813328/editorial-overview-advances-in-science-and-practice-in-traumatic-stress
#1
EDITORIAL
Anka A Vujanovic, Paula P Schnurr
This issue provides an expansive overview of the field of posttraumatic stress disorder (PTSD). The featured articles highlight novel, creative, and innovative topics and methodologies, consolidate recent scientific advances, and delineate future directions. The content spans various topics in the field of traumatic stress, including assessment, biopsychosocial correlates, clinical considerations, including comorbidity, anger, self-directed violence, and dissociative manifestations, evidence-based interventions, and innovative delivery formats that maximize dissemination and implementation...
April 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28813316/perspectives-on-the-conceptualization-of-the-dissociative-subtype-of-ptsd-and-implications-for-treatment
#2
REVIEW
Sunny J Dutra, Erika J Wolf
A dissociative subtype of PTSD was added to the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) to denote a distinct presentation of PTSD marked by symptoms of derealization and depersonalization. The subtype has brought renewed interest in the conceptualization of dissociation in PTSD, and raised questions about its treatment. We review the evidence for two models of PTSD-related dissociative symptoms and the treatment approaches that align with each. We find support for the contributions of biologically-based trait-level factors to dissociation, and suggest that empirically supported treatments for PTSD demonstrate efficacy for patients with the subtype...
April 2017: Current Opinion in Psychology
https://www.readbyqxmd.com/read/28812237/pharmacological-effects-on-ceroid-lipofuscin-and-neuronal-structure-in-cln3-%C3%A2-ex7-8-mouse-brain-cultures
#3
Douglas E Brenneman, David A Pearce, Attila Kovacs, Shawn DeFrees
Juvenile Batten disease (JBD) is an inherited disorder that is characterized by the development of blindness, seizures, and progressive motor, psychiatric, and cognitive impairment. A model of JBD expressing the predominant human mutation (Cln3 (∆ex7/8) ) has been explored. Dissociated brain cultures from Cln3 (∆ex7/8) knock-in mice were compared to wild type (WT) for effects on granules of ceroid lipofuscin (CL) and neuronal structure. Utilizing high content image analysis of CL granules identified with antibodies to mitochondrial ATP synthase subunit c or tripeptidyl peptidase-1, significant increases in the areas for both immunoreactive granules were observed in Cln3 (∆ex7/8) cultures in comparison to WT...
August 15, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28808897/should-posttraumatic-stress-be-a-disorder-or-a-specifier-towards-improved-nosology-within-the-dsm-categorical-classification-system
#4
REVIEW
Jeffrey Guina, Matthew Baker, Kelly Stinson, Jon Maust, Joseph Coles, Pamela Broderick
PURPOSE OF REVIEW: Since 1980, posttraumatic stress (PTS) disorder has been controversial because of its origin as a social construct, its discriminating trauma definition, and the Procrustean array of symptoms/clusters chosen for inclusion/exclusion. This review summarizes the history of trauma-related nosology and proposed changes, within current categorical models (trauma definitions, symptoms/clusters, subtypes/specifiers, disorders) and new models. RECENT FINDINGS: Considering that trauma is a risk factor for virtually all mental disorders (particularly depressive, anxiety, dissociative, personality), the multi-finality of trauma (some survivors are resilient, and some develop PTS and/or non-PTS symptoms), and the various symptoms that trauma survivors express (mood, cognitive, perceptual, somatic), it is difficult to classify PTS...
August 15, 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28806607/dissociation-in-patients-with-borderline-personality-disorder-in-acute-inpatient-care-a-latent-profile-analysis
#5
Susanne Jaeger, Tilman Steinert, Carmen Uhlmann, Erich Flammer, Dana Bichescu-Burian, Stefan Tschöke
PURPOSE: Dissociation is a common symptom in Borderline Personality disorder (BPD) and its consideration is important for the therapeutic outcome. The aim of this cross-sectional study was to scrutinize the co-occurrence of BPD symptoms and dissociative experiences. In particular, we were interested in the occurrence of specific symptom clusters characterizing qualitatively different patient groups in a clinical sample of BPD patients. BASIC PROCEDURES: We analyzed the data of 103 patients in a specialized acute inpatient care crisis intervention unit...
July 20, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28805432/strain-dependent-sex-differences-in-a-long-term-forced-swim-paradigm
#6
José Colom-Lapetina, Sabrina L Begley, Megan E Johnson, Kristina J Bean, Whitney N Kuwamoto, Rebecca M Shansky
Women are twice as likely as men to suffer from trauma- and stressor-related disorders. The development of improved therapeutic interventions is contingent upon a more complete grasp of both the neural and behavioral dynamics of the stress response in females. The rodent forced swim test (FST) is a valuable animal model for exploring the neurobiological mechanisms responsible for selection of active and passive responses to inescapable stressors, but it is often neglected in 2-day FST studies is the dissociation of innate (Day 1) versus learned (Day 2) coping responses...
August 14, 2017: Behavioral Neuroscience
https://www.readbyqxmd.com/read/28803140/a-competent-catalytic-active-site-is-necessary-for-substrate-induced-dimer-assembly-in-triosephosphate-isomerase
#7
Pedro Jimenez-Sandoval, Jose Luis Vique-Sanchez, Marisol López Hidalgo, Gilberto Velazquez-Juarez, Corina Diaz-Quezada, Luis Fernando Arroyo-Navarro, Gabriela Montero Moran, Juliana Fattori, A Jessica Diaz-Salazar, Enrique Rudiño-Pinera, Rogerio Sotelo-Mundo, Ana Carolina Migliorini Figueira, Samuel Lara-Gonzalez, Claudia G Benítez-Cardoza, Luis G Brieba
The protozoan parasite Trichomonas vaginalis contains two nearly identical triosephosphate isomerases (TvTIMs) that dissociate into stable monomers and dimerize upon substrate binding. Herein, we compare the role of the "ball and socket" and loop 3 interactions in substrate assisted dimer assembly in both TvTIMs. We found that point mutants at the "ball" are only 39 and 29-fold less catalytically active than their corresponding wild-type counterparts, whereas loop 3 deletions are 1502 and 9400-fold less active...
August 9, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28802915/neurological-evaluation-of-the-selection-stage-of-metaphor-comprehension-in-individuals-with-and-without-autism-spectrum-disorder
#8
Brea Chouinard, Joanne Volden, Ivor Cribben, Jacqueline Cummine
Because of their difficulties with figurative language in conversation, it is commonly thought that individuals with autism spectrum disorder (ASD) do not understand figurative meaning. However, recent research indicates that individuals with and without ASD are similar in the first two stages of metaphor comprehension, up to and including successful generation of the figurative meaning. In the current study, we used a sentence decision task to evaluate the subsequent stage of metaphor comprehension, the selection stage, which requires suppression/inhibition of the unintended meaning as part of selecting the intended meaning...
August 9, 2017: Neuroscience
https://www.readbyqxmd.com/read/28797561/self-reported-psychosis-like-experiences-in-patients-with-mood-disorders
#9
I Baryshnikov, J Suvisaari, K Aaltonen, M Koivisto, T Melartin, P Näätänen, K Suominen, B Karpov, M Heikkinen, J Oksanen, T Paunio, G Joffe, E Isometsä
BACKGROUND: Self-reported psychosis-like experiences (PEs) may be common in patients with mood disorders, but their clinical correlates are not well known. We investigated their prevalence and relationships with self-reported symptoms of depression, mania, anxiety, borderline (BPD) and schizotypal (SPD) personality disorders among psychiatric patients with mood disorders. METHODS: The Community Assessment of Psychic Experiences (CAPE-42), Mood Disorder Questionnaire (MDQ), McLean Screening Instrument (MSI), The Beck Depressive Inventory (BDI), Overall Anxiety Severity and Impairment Scale (OASIS) and Schizotypal Personality Questionnaire-Brief form (SPQ-B) were filled in by patients with mood disorders (n=282) from specialized care...
February 3, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28796557/revisiting-the-concept-of-severe-mental-illness-severity-indicators-and-healthcare-spending-in-psychotic-depressive-and-dissociative-disorders
#10
Ana Isabel Gonzalez Vazquez, Natalia Seijo Ameneiros, Juan Carlos Díaz Del Valle, Ester Lopez Fernandez, Miguel Angel Santed Germán
BACKGROUND: The concept of severe mental illness (SMI) has been related to bipolar or psychotic diagnosis, or to some cases of depressive disorders. Other mental health problems such as personality disorders or posttraumatic dissociative conditions, which can sometimes lead to relevant functional impairments, remain separate from the SMI construct. AIMS: This study aimed to evaluate the clinical severity as well as healthcare spending on dissociative disorders (DDs)...
August 10, 2017: Journal of Mental Health
https://www.readbyqxmd.com/read/28794158/intracellular-rebinding-of-transition-state-analogues-provides-extended-in-vivo-inhibition-lifetimes-on-human-purine-nucleoside-phosphorylase
#11
Sara T Gebre, Scott A Cameron, Lei Li, Y S Babu, Vern L Schramm
Purine nucleoside phosphorylase (PNP) is part of the human purine salvage pathway. Its deficiency triggers apoptosis of activated T-cells, making it a target for T-cell proliferative disorders. Transition-state analogues of PNP bind with picomolar (pM) dissociation constants. Tight-binding PNP inhibitors show exceptionally long lifetimes on the target enzyme. We solve the mechanism of the target residence time by comparing functional off-rates in vitro and in vivo. We report in vitro PNP-inhibitor dissociation rates (t1/2) from 3 to 31 min for seven Immucillins with dissociation constants of 115 to 6 pM...
August 9, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28791757/differential-stimulus-control-of-drug-seeking-multimodal-reinstatement
#12
Seth R Batten, Joshua S Beckmann
In animal models of substance-use disorder, individuals that repeatedly self-administer drugs of abuse have long-lasting neuronal adaptations that do not occur ostensibly in control animals only exposed to natural reinforcers (e.g. food). Because any treatment for substance-use disorder will be given to individuals with drug-taking histories, adequate dissociation of the specific neurobehavioral mechanisms underlying drug reinforcement, natural reinforcement and their associated cue effects requires an experimental model that exposes individuals to both reinforcer conditions, along with their associated stimuli...
August 9, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28790825/rapid-infusion-of-esketamine-for-unipolar-and-bipolar-depression-a-retrospective-chart-review
#13
Fernanda S Correia-Melo, Felipe C Argolo, Lucas Araújo-de-Freitas, Gustavo Carneiro Leal, Flávio Kapczinski, Acioly Luiz Lacerda, Lucas C Quarantini
BACKGROUND: This study evaluated efficacy and safety of intravenous subanesthetic doses of esketamine using an administration time of 10 minutes in patients with treatment-resistant depression and bipolar depression. METHODS: A retrospective chart review was conducted to identify patients who met the inclusion criteria for treatment-resistant depression and bipolar depression according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision criteria, and these patients received rapid infusion of esketamine between June 2012 and December 2015...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28780430/hippocampal-activation-and-memory-in-schizophrenia-depend-on-spatial-strategy-use-in-a-virtual-maze
#14
Leanne K Wilkins, Todd A Girard, Katherine A Herdman, Bruce K Christensen, Jelena King, Michael Kiang, Veronique D Bohbot
Different strategies may be spontaneously adopted to solve most navigation tasks. These strategies are associated with dissociable brain systems. Here, we use brain-imaging and cognitive tasks to test the hypothesis that individuals living with Schizophrenia Spectrum Disorders (SSD) have selective impairment using a hippocampal-dependent spatial navigation strategy. Brain activation and memory performance were examined using functional magnetic resonance imaging (fMRI) during the 4-on-8 virtual maze (4/8VM) task, a human analog of the rodent radial-arm maze that is amenable to both response-based (egocentric or landmark-based) and spatial (allocentric, cognitive mapping) strategies to remember and navigate to target objects...
July 31, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28780279/personality-disorders-and-somatization-in-functional-and-organic-movement-disorders
#15
Giovanni Defazio, Adriana Pastore, Roberta Pellicciari, Grazia Pierri, Angelo F Gigante, Giada Fabio, Maria Superbo, Francesco Margari
Psychiatric disturbances and somatizations are both criteria which support the diagnosis of functional movement disorders. It is unclear, however, whether these factors are helpful in differentiating functional and organic movement disorders. To address this issue, the Structured Clinical Interview for DSM-IV Axis I and II psychiatric disorders, the State-Trait Anxiety Inventory, the Beck Depression Inventory and the "somatization section" of the Dissociative Disorders Interview Schedule were administered to 31 functional movement disorder patients diagnosed, according to Fahn and Williams criteria and 31 sex- and age-matched control outpatients, with adult-onset dystonia...
July 31, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28778106/-treatment-of-eating-disorders-by-emotion-regulation
#16
Valerija Sipos, Ulrich Schweiger, Kamila Jauch-Chara, Eva Faßbinder
Patients with an eating disorder have difficulties perceiving emotions. They have skills deficits in the acceptance, modification and opposite action to emotion driven behavior. They use disturbed eating behavior (restrained eating, binge eating and purging), but also situational avoidance, dissociation and substance use as an instrument for emotional avoidance. This constitutes an innovative starting point for therapy.
August 4, 2017: Psychotherapie, Psychosomatik, Medizinische Psychologie
https://www.readbyqxmd.com/read/28777175/non-rapid-eye-movement-sleep-and-overlap-parasomnias
#17
Muna Irfan, Carlos H Schenck, Michael J Howell
PURPOSE OF REVIEW: This article reviews the spectrum of non-rapid eye movement (non-REM) sleep parasomnias, including sleepwalking, confusional arousals, and sleep terrors, which represent the range of phenotypic disorders of arousal from non-REM sleep that occurs in children and adults. RECENT FINDINGS: The International Classification of Sleep Disorders, Third Edition (ICSD-3) classifies parasomnias according to the sleep stage they emerge from: REM, non-REM, or other...
August 2017: Continuum: Lifelong Learning in Neurology
https://www.readbyqxmd.com/read/28766469/the-forsaking-of-the-clinical-eeg-by-psychiatry-how-justified
#18
Nash N Boutros
Despite decades of publications attesting to the role of the clinical EEG in diagnosing and managing psychiatric disorders, the procedure remains highly underutilized in the practice of psychiatry. The visually inspected EEG (vEEG) can detect various forms of abnormalities, each with its own clinical significance. Abnormalities can be paroxysmal (i.e., suggestive of an epileptic-like process) or stationary. The most important unanswered question remains the value of detecting epileptiform activity in a nonepileptic psychiatric patient in predicting favorable responses to anticonvulsant treatment...
August 2, 2017: CNS Spectrums
https://www.readbyqxmd.com/read/28760960/oligomerization-of-the-tetramerization-domain-of-p53-probed-by-two-and-three-color-single-molecule-fret
#19
Hoi Sung Chung, Fanjie Meng, Jae-Yeol Kim, Kevin McHale, Irina V Gopich, John M Louis
We describe a method that combines two- and three-color single-molecule FRET spectroscopy with 2D FRET efficiency-lifetime analysis to probe the oligomerization process of intrinsically disordered proteins. This method is applied to the oligomerization of the tetramerization domain (TD) of the tumor suppressor protein p53. TD exists as a monomer at subnanomolar concentrations and forms a dimer and a tetramer at higher concentrations. Because the dissociation constants of the dimer and tetramer are very close, as we determine in this paper, it is not possible to characterize different oligomeric species by ensemble methods, especially the dimer that cannot be readily separated...
August 15, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28760539/dissociable-auditory-mismatch-response-and-connectivity-patterns-in-adolescents-with-schizophrenia-and-adolescents-with-bipolar-disorder-with-psychosis-a-magnetoencephalography-study
#20
Sven Braeutigam, Danai Dima, Sophia Frangou, Anthony James
BACKGROUND: There is overlap between schizophrenia and bipolar disorder regarding genetic risk as well as neuropsychological and structural brain deficits. Finding common and distinct event-response potential (ERP) responses and connectivity patterns may offer potential biomarkers to distinguish the disorders. OBJECTIVE: To examine the neuronal auditory response elicited by a roving mismatch negativity (MMN) paradigm using magnetoencephalography (MEG). PARTICIPANTS: 15 Adolescents with schizophrenia (ASZ), 16 adolescents with bipolar disorder with psychosis (ABP), and 14 typically developing individuals (TD) METHODS: The data were analysed using time-series techniques and dynamic causal modelling (DCM)...
July 28, 2017: Schizophrenia Research
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