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Dissociative Symptoms

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https://www.readbyqxmd.com/read/29792848/subthalamic-nucleus-deep-brain-stimulation-protects-neurons-by-activating-autophagy-via-pp2a-inactivation-in-a-rat-model-of-parkinson-s-disease
#1
Ting-Ting Du, Ying-Chuan Chen, Yong-Quan Lu, Fan-Gang Meng, Hui Yang, Jian-Guo Zhang
Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is an effective therapeutic strategy for alleviating disability in patients with moderate to severe Parkinson's disease (PD). Preclinical studies have shown that stimulation of the rat STN can protect against nigral dopaminergic neuron loss. However, the underlying mechanism is unclear. To investigate the molecular basis of the neuroprotective effects of STN stimulation, a rat model of PD was established by unilaterally injecting 6-hydroxydopamine (6-OHDA) into the striatum...
May 21, 2018: Experimental Neurology
https://www.readbyqxmd.com/read/29779059/youth-responses-to-school-shootings-a-review
#2
REVIEW
Áine Travers, Tracey McDonagh, Ask Elklit
PURPOSE OF REVIEW: This paper aims to synthesize research relating to youth responses to school shootings between 2014 and 2017. The main questions it addresses are how such events impact young people psychologically, and what risk or protective factors may contribute to different trajectories of recovery? RECENT FINDINGS: Recent research suggests that most young people exposed to school shootings demonstrate resilience, exhibiting no long-term dysfunction. However, a minority will experience severe and chronic symptoms...
May 19, 2018: Current Psychiatry Reports
https://www.readbyqxmd.com/read/29778052/self-reported-nonsuicidal-self-injury-nssi-and-sex-as-self-injury-sasi-relationship-to-abuse-risk-behaviors-trauma-symptoms-self-esteem-and-attachment
#3
Maria Zetterqvist, Carl Göran Svedin, Cecilia Fredlund, Gisela Priebe, Marie Wadsby, Linda S Jonsson
This study focuses on a conceptually unexplored behavior among adolescents who report deliberately using sex as a means of self-injury. In a large high school-based sample (n = 5743), adolescents who engaged in sex as self-injury (SASI, n = 43) were compared to adolescents who reported direct nonsuicidal self-injury (NSSI, n = 933) and those who reported both NSSI and SASI (n = 82). Results showed that significantly more adolescents with SASI had experience of penetrating sexual abuse, as well as more sexual partners compared to those with NSSI...
May 7, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29766664/tissue-engineered-nigrostriatal-pathway-for-treatment-of-parkinson-s-disease
#4
Laura A Struzyna, Kevin D Browne, Zachary D Brodnik, Justin C Burrell, James P Harris, H Isaac Chen, John A Wolf, Kate V Panzer, James Lim, John E Duda, Rodrigo A España, D Kacy Cullen
The classic motor deficits of Parkinson's disease are caused by degeneration of dopaminergic neurons in the substantia nigra pars compacta, resulting in the loss of their long-distance axonal projections that modulate the striatum. Current treatments only minimize the symptoms of this disconnection as there is no approach capable of replacing the nigrostriatal pathway. We are applying micro-tissue engineering techniques to create living, implantable constructs that mimic the architecture and function of the nigrostriatal pathway...
May 15, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29765311/altered-sense-of-body-ownership-and-agency-in-posttraumatic-stress-disorder-and-its-dissociative-subtype-a-rubber-hand-illusion-study
#5
Daniela Rabellino, Dalila Burin, Sherain Harricharan, Chantelle Lloyd, Paul A Frewen, Margaret C McKinnon, Ruth A Lanius
Traumatic experiences have been linked to the development of altered states of consciousness affecting bodily perception, including alterations in body ownership and in sense of agency, the conscious experience of the body as one's own and under voluntary control. Severe psychological trauma and prolonged distress may lead to posttraumatic stress disorder (PTSD). Together, symptoms of derealization and, related specifically to the sense of body ownership and agency, of depersonalization (where parts of the body or the entire body itself is perceived as detached and out of control), constitute the dissociative subtype (PTSD+DS)...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29761827/factors-related-to-dissociation-between-objective-and-subjective-masticatory-function-in-japanese-community-dwelling-elderly-adults
#6
Murakami Masaharu, Yutaka Watanabe, Edahiro Ayako, Yuki Ohara, Obuchi Shuichi, Kawai Hisashi, Hunkyung Kim, Yoshinori Fujiwara, Ihara Kazushige, Murakami Masato, Hirohiko Hirano
OBJECTIVE: Clinicians' evaluations of older adults sometimes reveal inconsistencies between objective and subjective dental status. This study investigated which factors contribute both to good objective masticatory function (OMF) and the poor subjective masticatory function (SMF) that often becomes a clinical issue. METHODS: Study participants included 635 elderly community-dwelling Japanese adults who underwent a comprehensive geriatric health examination in 2012...
May 15, 2018: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/29739129/evaluation-of-relationship-between-obsessive-compulsive-disorder-and-dissociative-experiences
#7
Mustafa Tatlı, Ozlem Cetinkaya, Fulya Maner
Objective: The aim of the study is to evaluate the relationship between obsessive-compulsive disorder (OCD) symptoms and dissociative experiences and the effect of childhood traumatic experiences on this relationship in OCD patients. Methods: Fifty consecutive OCD patients and 50 healthy controls are enrolled for this study. Sociodemographic and Clinical Data Form, Dissociative Experiences Scale (DES), Padua Inventory (PI) and Childhood Trauma Questionnaire (CTQ) are applied to participants...
May 31, 2018: Clinical Psychopharmacology and Neuroscience: the Official Scientific Journal of the Korean College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29735490/anterior-spinal-cord-infarct-a-rare-yet-disabling-stroke
#8
Nikunj Davda, Chinar Osman
We present a case which demonstrates the classical clinical symptoms and signs evident in an anterior spinal cord syndrome and explains the anatomical basis for the features seen with respect to the ascending and descending tracts in the spinal cord. It also demonstrates the clinical importance in conducting a detailed sensory examination to look for dissociated sensory loss and ascertaining the level of the pathology within the cord. The patient had made improvements following over a month of extensive rehabilitation on a specialist stroke unit...
May 7, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29734380/mitochondrial-modulation-induced-activation-of-vagal-sensory-neuronal-subsets-by-antimycin-a-but-not-cccp-or-rotenone-correlates-with-mitochondrial-superoxide-production
#9
Katherine R Stanford, Thomas E Taylor-Clark
Inflammation causes nociceptive sensory neuron activation, evoking debilitating symptoms and reflexes. Inflammatory signaling pathways are capable of modulating mitochondrial function, resulting in reactive oxygen species (ROS) production, mitochondrial depolarization and calcium release. Previously we showed that mitochondrial modulation with antimycin A, a complex III inhibitor, selectively stimulated nociceptive bronchopulmonary C-fibers via the activation of transient receptor potential (TRP) ankyrin 1 (A1) and vanilloid 1 (V1) cation channels...
2018: PloS One
https://www.readbyqxmd.com/read/29727073/efficacy-safety-and-durability-of-repeated-ketamine-infusions-for-comorbid-posttraumatic-stress-disorder-and-treatment-resistant-depression
#10
C Sophia Albott, Kelvin O Lim, Miriam K Forbes, Christopher Erbes, Susanna J Tye, John G Grabowski, Paul Thuras, Tegan M Batres-Y-Carr, Joseph Wels, Paulo R Shiroma
OBJECTIVE: The present study examined the efficacy, safety, and durability of repeated ketamine infusions for the treatment of comorbid posttraumatic stress disorder (PTSD) and treatment-resistant depression (TRD) in a sample of veterans. METHODS: Individuals with comorbid DSM-5-defined PTSD and DSM-IV-defined major depressive disorder (N = 15) received 6 intravenous ketamine infusions (0.5 mg/kg) on a Monday-Wednesday-Friday schedule over a 12-day period from May 2015 to June 2016...
May 1, 2018: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/29709541/the-physiological-orienting-response-in-female-adolescents-with-borderline-personality-disorder
#11
Julian Koenig, Romuald Brunner, Peter Parzer, Franz Resch, Michael Kaess
BACKGROUND: The reflexive startle- and orienting-response have been widely studied in psychiatric disorders. Existing evidence in patients with borderline personality disorder (BPD) is mixed, and limited to adults. The present study addressed clinical correlates of the psychophysiological orienting response in adolescents with BPD. METHODS: Female adolescents (13-19 years) with BPD (n = 30), healthy controls (HC; n = 34), and psychiatric clinical controls (CC; n = 53) participated in the trial...
April 27, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29707166/pre-deployment-dissociation-and-personality-as-risk-factors-for-post-deployment-post-traumatic-stress-disorder-in-danish-soldiers-deployed-to-afghanistan
#12
Beatriz Ponce de León, Søren Andersen, Karen-Inge Karstoft, Ask Elklit
Objective : This study investigated whether pre-deployment dissociation was associated with previously identified post-traumatic stress disorder (PTSD) symptom trajectories from before to 2.5 years after military deployment. Furthermore, it examined whether the tendency to dissociate, pre-deployment personality factors, conceptualized by the Big Five model, and previous trauma represented independent risk factors for post-deployment PTSD symptoms. Method : This prospective study included the entire team of 743 soldiers from the Danish Contingent of the International Security Assistance Force 7 deployed to Afghanistan in 2009...
2018: European Journal of Psychotraumatology
https://www.readbyqxmd.com/read/29702410/scared-or-scarred-could-dissociogenic-lesions-predispose-to-nonepileptic-seizures-after-head-trauma
#13
REVIEW
Stoyan Popkirov, Alan J Carson, Jon Stone
A history of head injury is common in patients with psychogenic nonepileptic seizures (PNES). This association has so far been interpreted as either spurious or psychologically mediated. Biased recall and misattribution could foster illness beliefs about brain damage that promote symptom production. Furthermore, the emotional impact of head injury could induce long-term changes in stress responsivity. Lastly, maladaptive cognitive-behavioural processes involving symptom modelling and aversive conditioning, known to play a role in functional neurological disorders, could contribute to the development of PNES after head trauma...
April 14, 2018: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29696602/translational-shifts-in-preclinical-models-of-depression-implications-for-biomarkers-for-improved-treatments
#14
Chloe Slaney, Justyna K Hinchcliffe, Emma S J Robinson
Understanding the neurobiology of major depressive disorder (MDD) remains one of the major challenges in neuroscience. The disease is heterogeneous in nature, and patients present with a varied symptom profile. Studies seeking to identify biomarkers for MDD diagnosis and treatment have not yet found any one candidate which achieves sufficient sensitivity and specificity. In this article, we consider whether neuropsychological impairments, specifically affective biases, could provide a behavioural biomarker...
April 26, 2018: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/29694935/does-dissociation-mediate-the-relationship-between-childhood-trauma-and-hallucinations-delusions-in-first-episode-psychosis
#15
Pamela Sun, Mario Alvarez-Jimenez, Katrina Simpson, Katherine Lawrence, Natalie Peach, Sarah Bendall
BACKGROUND: Childhood trauma has been linked to the presence of delusions and hallucinations in psychosis, although the mechanisms underlying this relationship require elucidation. Dissociation, characterized by disruptions to the integrative functioning of several core mental domains, has emerged as a potential mechanism. There is a paucity of research using a clinician-rated measure of dissociation to test the indirect effect of dissociation on the relationship between childhood trauma and psychotic symptoms...
April 11, 2018: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/29694599/-circumstances-and-consequences-of-care-characterization-of-the-family-caregiver-in-palliative-care
#16
Mayra Delalibera, António Barbosa, Isabel Leal
Family caregivers play an important role in advanced disease patient care. The goal of this study was to characterize the family caregiver in palliative care, evaluating the circumstances and consequences of care and preparation for the loss of the loved one. This is a quantitative, prospective and longitudinal study. The sample consisted of 60 family caregivers, mostly women, married with an average age of 44.53 years. Most caregivers cohabit with the patient, and they spend the greater part of their day caring for the patient and a significant part quit their jobs or reduce working hours to be with the patient...
April 2018: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/29686490/autonomic-instability-in-a-dehydrated-child-on-guanfacine-case-report-and-literature-review
#17
Elizabeth Roach-Fox, Eva Welisch, Amrita Sarpal
An 8-year-old girl on guanfacine extended-release (GXR) for attention-deficit/hyperactivity disorder presented with somnolence, bradycardia and hypotension during a heat wave. No overdose was suspected. She was admitted to the intensive care unit for monitoring and ongoing fluid resuscitation for hypotension. Electrocardiogram showed intermittent atrioventricular dissociation. Upon restarting the drug post-discharge, blood pressures were normal, and follow-up electrocardiograms documented asymptomatic bradycardia but no dissociation...
April 2018: Paediatrics & Child Health
https://www.readbyqxmd.com/read/29683701/exploring-evidence-of-a-dissociative-subtype-in-ptsd-baseline-symptom-structure-etiology-and-treatment-efficacy-for-those-who-dissociate
#18
Mark S Burton, Norah C Feeny, Arin M Connell, Lori A Zoellner
OBJECTIVE: With the inclusion of a dissociative subtype, recent changes to the DSM-5 diagnosis of posttraumatic stress disorder (PTSD) have emphasized the role of dissociation in the experience and treatment of the disorder. However, there is a lack of research exploring the clinical impact for highly dissociative groups receiving treatment for PTSD. The current study examined the presence and clinical impact of a dissociative subtype in a sample of individuals receiving treatment for chronic PTSD...
May 2018: Journal of Consulting and Clinical Psychology
https://www.readbyqxmd.com/read/29672308/modulation-of-pacemaker-potentials-in-murine-small-intestinal-interstitial-cells-of-cajal-by-gamisoyo-san-a-traditional-chinese-herbal-medicine
#19
Doeun Kim, Jung Nam Kim, Joo Hyun Nam, Jong Rok Lee, Sang Chan Kim, Byung Joo Kim
BACKGROUND: The Gamisoyo-san (GSS) has been used for -improving the gastrointestinal (GI) symptoms. The purpose of this study was to investigate the effects of GSS, a traditional Chinese herbal medicine, on the pacemaker potentials of mouse small intestinal interstitial cells of Cajal (ICCs). METHODS: ICCs from the small intestines were dissociated and cultured. Whole-cell patch-clamp configuration was used to record pacemaker potentials and membrane currents. RESULTS: GSS depolarized ICC pacemaker potentials in a dose-dependent manner...
April 19, 2018: Digestion
https://www.readbyqxmd.com/read/29670562/a-non-linear-predictive-model-of-borderline-personality-disorder-based-on-multilayer-perceptron
#20
Nelson M Maldonato, Raffaele Sperandeo, Enrico Moretto, Silvia Dell'Orco
Borderline Personality Disorder is a serious mental disease, classified in Cluster B of DSM IV-TR personality disorders. People with this syndrome presents an anamnesis of traumatic experiences and shows dissociative symptoms. Since not all subjects who have been victims of trauma develop a Borderline Personality Disorder, the emergence of this serious disease seems to have the fragility of character as a predisposing condition. Infect, numerous studies show that subjects positive for diagnosis of Borderline Personality Disorder had scores extremely high or extremely low to some temperamental dimensions (harm Avoidance and reward dependence) and character dimensions (cooperativeness and self directedness)...
2018: Frontiers in Psychology
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