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https://www.readbyqxmd.com/read/28749089/cognitive-deficits-in-patients-with-neuropsychiatric-symptoms-a-comparative-study-between-behavioral-variant-frontotemporal-dementia-and-primary-psychiatric-disorders
#1
Everard G B Vijverberg, Sigfried Schouws, Paul David Meesters, Esmée Verwijk, Hannie Comijs, Ted Koene, Charlotte Schreuder, Aartjan Beekman, Philip Scheltens, Max Stek, Yolande Pijnenburg, Annemieke Dols
OBJECTIVE: To compare neuropsychological profiles in behavioral variant frontotemporal dementia (bvFTD) with its most common primary psychiatric differential diagnoses, major depressive disorder (MDD), bipolar disorder (BD), and schizophrenia, in older patients with active symptoms. METHODS: We included patients from different cohorts with MDD (DSM-IV-TR: 296.20-296.23, 296.30-296.33; n = 42; mean ± SD age, 72.0 ± 8.0 years; female = 57.1%) included from 2002 to 2007, noneuthymic BD (DSM-IV-TR: 296...
July 25, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28729943/relationship-between-cerebellar-structure-and-emotional-memory-in-depression
#2
Li-Yan Xu, Fang-Cheng Xu, Can Liu, Yi-Fu Ji, Jin-Min Wu, Ying Wang, Hai-Bao Wang, Yong-Qiang Yu
BACKGROUND: A few studies have been conducted on the relationship between cerebellar volume and emotional memory or clinical severity in major depressive disorder (MDD). In this study, we aimed to compare the volume and density of the cerebellar gray matter (GM) in patients with MDD and in healthy controls (HCs) and explore the association between these cerebellar parameters and measurements of emotional memory and clinical severity. METHOD: Voxel-based morphometry (VBM) and Individual Brain Atlases using Statistical Parametric Mapping (IBASPM) were used to assess GM density and volume in the cerebellum, respectively, in patients with MDD and the HCs...
July 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28728096/early-life-stress-explains-reduced-positive-memory-biases-in-remitted-depression
#3
J A Gethin, K E Lythe, C I Workman, A Mayes, J Moll, R Zahn
BACKGROUND: There is contradictory evidence regarding negative memory biases in major depressive disorder (MDD) and whether these persist into remission, which would suggest their role as vulnerability traits rather than correlates of mood state. Early life stress (ELS), common in patients with psychiatric disorders, has independently been associated with memory biases, and confounds MDD versus control group comparisons. Furthermore, in most studies negative biases could have resulted from executive impairments rather than memory difficulties per se...
July 10, 2017: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/28718181/erythropoietin-for-cognitive-deficits-associated-with-schizophrenia-bipolar-disorder-and-major-depression-a-systematic-review
#4
Xian-Bin Li, Wei Zheng, Yu-Ping Ning, Dong-Bin Cai, Xin-Hu Yang, Gabor S Ungvari, Chee H Ng, Chuan-Yue Wang, Yu-Tao Xiang
Introduction The purpose of this study is to systematically review the efficacy and safety of adjunctive erythropoietin (EPO) in treating cognitive deficits associated with schizophrenia, bipolar disorder, and major depression based on randomized controlled trials (RCTs). Methods Two evaluators independently and systematically searched and selected studies, extracted data, and conducted quality assessment. Results Four RCTs with 144 patients (71 in the EPO group and 73 in the placebo group) met the study entry criteria...
July 17, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28714580/differential-failure-to-deactivate-the-default-mode-network-in-unipolar-and-bipolar-depression
#5
Elena Rodríguez-Cano, Silvia Alonso-Lana, Salvador Sarró, Paloma Fernández-Corcuera, José M Goikolea, Eduard Vieta, Teresa Maristany, Raymond Salvador, Peter J McKenna, Edith Pomarol-Clotet
OBJECTIVES: Neuroimaging studies have revealed evidence of brain functional abnormalities in bipolar depressive disorder (BDD) and major depressive disorder (MDD). However, few studies to date have compared these two mood disorders directly. METHODS: Matched groups of 26 BDD type I patients, 26 MDD patients and 26 healthy controls underwent functional magnetic resonance imaging (fMRI) while performing the n-back working memory task. A whole-brain ANOVA was used to compare the three groups and clusters of significant difference were examined further using region-of-interest (ROI) analysis...
July 17, 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28705297/the-diagnosis-and-treatment-of-behavioral-disorders-in-dementia
#6
Torsten Kratz
BACKGROUND: Behavioral disorders such as aggressiveness, agitation, delusions, disinhibition, affect lability, and apathy arise in more than 90% of patients with dementia. Behavioral disorders are a major challenge and the greatest stress factor in everyday life for nursing personnel and for family members caring for the patient. METHODS: This review is based on relevant publications retrieved by a selective literature search in the PubMed, Cochrane Library, and German S3 guideline databases with the search terms "behavioral disorders," "non-cognitive disorders," and "challenging behavior," in conjunction with "dementia" and "behavioral and psychological symptoms of dementia...
June 30, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28697998/neural-and-behavioural-correlates-of-autobiographical-memory-retrieval-in-patients-with-major-depressive-disorder-and-a-history-of-trauma-exposure
#7
Melissa Parlar, Maria Densmore, Geoffrey B C Hall, Ruth Lanius, Margaret C McKinnon
Alterations in autobiographical memory (AM) performance have been identified in major depressive disorder (MDD) and in trauma-related disorders, however, the neural and behavioural correlates of AM retrieval in patients with MDD and a co-morbid history of trauma remain unexplored. Here, we used behavioural and neuroimaging techniques to investigate AM in this patient group and in matched healthy comparison subjects (HCs). Twenty patients with MDD and trauma exposure and 20 HCs underwent fMRI scanning while recalling positive, negative, and neutral events...
July 8, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28682878/the-involvement-of-potassium-channel-ork1-in-short-term-memory-and-sleep-in-drosophila
#8
Xiaoyan Zhang, Yabin Zheng, Qingguo Ren, Hong Zhou
BACKGROUND: The sleep and cognitive dysfunction are common in major depressive disorders (MDDs). Recently, the 2-pore domain potassium channel twik-related K(+) channel 1 (TREK-1) has been identified to be closely related to the etiology of MDD. However, whether TREK-1 is involved in the regulation of sleep and cognition is still unknown. METHODS: The present study tried to dissect the role of outwardly rectifying K+ channel-1 (ORK1) (TREK-1 homolog in Drosophila) in sleep and cognition in Drosophila...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28676016/resilience-dysregulation-in-major-depressive-disorder-focus-on-glutamatergic-imbalance-and-microglial-activation
#9
Gislaine Z Réus, Airam B de Moura, Ritele H Silva, Wilson R Resende, João Quevedo
Many studies have been shown an important role of glutamatergic system as well microglial activation in the pathophysiology of major depressive disorder (MDD). Experimental and clinical data suggest that attenuation of N-methyl-D-aspartate (NMDA) receptor function exerts antidepressant effects. Glutamatergic system is involved with memory establishment and function, and it regulates plasticity in the brain. Microglial cells play pivotal role to the brain functions; however, under chronic inflammation status microglial could be turn activated and increase the pro-inflammatory cytokines...
July 3, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28676011/resilience-dysregulation-in-major-depressive-disorder-focus-on-glutamatergic-imbalance-and-microglial-activation
#10
Gislaine Z Réus, Airam B de Moura, Ritele H Silva, Wilson R Resende, João Quevedo
Many studies have been shown an important role of glutamatergic system as well microglial activation in the pathophysiology of major depressive disorder (MDD). Experimental and clinical data suggest that attenuation of N-methyl-D-aspartate (NMDA) receptor function exerts antidepressant effects. Glutamatergic system is involved with memory establishment and function, and it regulates plasticity in the brain. Microglial cells play pivotal role to the brain functions; however, under chronic inflammation status microglial could be turn activated and increase the pro-inflammatory cytokines...
June 30, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28652752/cognitive-dysfunction-in-major-depression-and-alzheimer-s-disease-is-associated-with-hippocampal-prefrontal-cortex-dysconnectivity
#11
REVIEW
Dayalan Sampath, Monica Sathyanesan, Samuel S Newton
Cognitive dysfunction is prevalent in psychiatric disorders. Deficits are observed in multiple domains, including working memory, executive function, attention, and information processing. Disability caused by cognitive dysfunction is frequently as debilitating as the prominent emotional disturbances. Interactions between the hippocampus and the prefrontal cortex are increasingly appreciated as an important link between cognition and emotion. Recent developments in optogenetics, imaging, and connectomics can enable the investigation of this circuit in a manner that is relevant to disease pathophysiology...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28651909/convergence-and-divergence-of-neurocognitive-patterns-in-schizophrenia-and-depression
#12
Sugai Liang, Matthew R G Brown, Wei Deng, Qiang Wang, Xiaohong Ma, Mingli Li, Xun Hu, Michal Juhas, Xinmin Li, Russell Greiner, Andrew J Greenshaw, Tao Li
BACKGROUND: Neurocognitive impairments are frequently observed in schizophrenia and major depressive disorder (MDD). However, it remains unclear whether reported neurocognitive abnormalities could objectively identify an individual as having schizophrenia or MDD. METHODS: The current study included 220 first-episode patients with schizophrenia, 110 patients with MDD and 240 demographically matched healthy controls (HC). All participants performed the short version of the Wechsler Adult Intelligence Scale-Revised in China; the immediate and delayed logical memory of the Wechsler Memory Scale-Revised in China; and seven tests from the computerized Cambridge Neurocognitive Test Automated Battery to evaluate neurocognitive performance...
June 23, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28648684/hbk-15-protects-mice-from-stress-induced-behavioral-disturbances-and-changes-in-corticosterone-bdnf-and-ngf-levels
#13
Karolina Pytka, Monika Głuch-Lutwin, Magdalena Kotańska, Elżbieta Żmudzka, Magdalena Jakubczyk, Anna Waszkielewicz, Paulina Janiszewska, Maria Walczak
Unlike majority of current antidepressants, HBK-15-a 5-HT1A and 5-HT7 receptor antagonist - showed memory-enhancing properties. In this study, we aimed to further characterize pharmacological profile of HBK-15 and investigate its antidepressant- and anxiolytic-like activity in the mouse model of unpredictable chronic mild stress. We used sucrose consumption test, forced swim test and elevated plus maze test as behavioral endpoints. We also evaluated the influence of HBK-15 on brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) levels in the hippocampus and prefrontal cortex, as well as body weight, relative adrenal glands weight and plasma corticosterone level in the stressed mice...
June 23, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28645775/altered-populations-of-natural-killer-cells-cytotoxic-t-lymphocytes-and-regulatory-t-cells-in-major-depressive-disorder-association-with-sleep-disturbance
#14
Hideo Suzuki, Jonathan Savitz, T Kent Teague, Siva K Gandhapudi, Chibing Tan, Masaya Misaki, Brett A McKinney, Michael R Irwin, Wayne C Drevets, Jerzy Bodurka
A subset of individuals with major depressive disorder (MDD) have impaired adaptive immunity characterized by a greater vulnerability to viral infection and a deficient response to vaccination along with a decrease in the number and/or activity of T cells and natural killer cells (NKC). Nevertheless, it remains unclear which specific subsets of lymphocytes are altered in MDD, a shortcoming we address here by utilizing an advanced fluorescence-activated cell sorting (FACS) method that allows for the differentiation of important functionally-distinct lymphocyte sub-populations...
June 20, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28634383/discrepancy-between-objective-and-subjective-cognition-in-adults-with-major-depressive-disorder
#15
Manit Srisurapanont, Sirijit Suttajit, Kanokkwan Eurviriyanukul, Prirada Varnado
This study aimed to determine: i) the correlation between objective and subjective cognition, ii) the correlates of objective and subjective cognition and iii) the predictors of discrepancy between objective and subjective cognition. Participants were non-elderly patients with major depressive disorder (MDD). We assessed subjective cognition using the Perceived Deficit Questionnaire for Depression (PDQ-D) and objective cognition using Face I and Face II tests of the Wechsler Memory Scale, 3rd edition and Digit Span and Matrix Reasoning tests of the Wechsler Intelligence Scale for Adults, 3rd edition...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629225/cortical-plasticity-in-depression
#16
Mariagiovanna Cantone, Alessia Bramanti, Giuseppe Lanza, Manuela Pennisi, Placido Bramanti, Giovanni Pennisi, Rita Bella
Neural plasticity is considered the neurophysiological correlate of learning and memory, although several studies have also noted that it plays crucial roles in a number of neurological and psychiatric diseases. Indeed, impaired brain plasticity may be one of the pathophysiological mechanisms that underlies both cognitive decline and major depression. Moreover, a degree of cognitive impairment is frequently observed throughout the clinical spectrum of mood disorders, and the relationship between depression and cognition is often bidirectional...
May 2017: ASN Neuro
https://www.readbyqxmd.com/read/28628764/psychiatric-disorders-moderate-the-relationship-between-insomnia-and-cognitive-problems-in-military-soldiers
#17
Janeese A Brownlow, Elizabeth A Klingaman, Elaine M Boland, Glenna S Brewster, Philip R Gehrman
BACKGROUND: There has been a great deal of research on the comorbidity of insomnia and psychiatric disorders, but much of the existing data is based on small samples and does not assess the full diagnostic criteria for each disorder. Further, the exact nature of the relationship between these conditions and their impact on cognitive problems are under-researched in military samples. METHOD: Data were collected from the All Army Study of the Army Study to Assess Risk and Resilience in Service members (unweighted N = 21, 449; weighted N = 674,335; 18-61 years; 13...
October 15, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28628388/coordination-of-ampa-receptor-trafficking-by-rab-gtpases
#18
Angelika Hausser, Katalin Schlett
Synaptic connections in the brain are continuously weakened or strengthened in response to changes in neuronal activity. This process, known as synaptic plasticity, is the cellular basis for learning and memory, and is thought to be altered in several neuronal disorders. An important aspect of synaptic plasticity is the tightly controlled trafficking and synaptic targeting of the AMPA-type glutamate receptors, which are the major mediators of fast excitatory transmission in the brain. This review addresses the role of Rab GTPases in AMPA receptor trafficking in neurons under basal conditions and during activity-induced synaptic plasticity, especially during long-term potentiation (LTP) and long-term depression (LTD)...
June 19, 2017: Small GTPases
https://www.readbyqxmd.com/read/28625940/prodromal-stage-of-disease-dementia-with-lewy-bodies-how-to-diagnose-in-practice
#19
Frédéric Blanc, Marc Verny
Disease with Lewy bodies or dementia with Lewy bodies (DLB), particularly at the prodromal stage, is a complex disease to diagnose because of different clinical beginnings and variable paths in terms of clinical expression. Thus DLB can be entcountered in different input modes: mild cognitive impairment, depression, acute behavioral disorders, confusion and delirium, or sleep disorders. In the aim to better diagnose the disease, should be sought obviously to search for the key symptoms: fluctuations, hallucinations, extra-pyramidal syndrome, and REM sleep behavior disorder...
June 1, 2017: Gériatrie et Psychologie Neuropsychiatrie du Vieillissement
https://www.readbyqxmd.com/read/28625590/intranasal-cotinine-improves-memory-and-reduces-depressive-like-behavior-and-gfap-cells-loss-induced-by-restraint-stress-in-mice
#20
Nelson Perez-Urrutia, Cristhian Mendoza, Nathalie Alvarez-Ricartes, Patricia Oliveros-Matus, Florencia Echeverria, J Alex Grizzell, George E Barreto, Alexandre Iarkov, Valentina Echeverria
Posttraumatic stress disorder (PTSD), chronic psychological stress, and major depressive disorder have been found to be associated with a significant decrease in glial fibrillary acidic protein (GFAP) immunoreactivity in the hippocampus of rodents. Cotinine is an alkaloid that prevents memory impairment, depressive-like behavior and synaptic loss when co-administered during restraint stress, a model of PTSD and stress-induced depression, in mice. Here, we investigated the effects of post-treatment with intranasal cotinine on depressive- and anxiety-like behaviors, visual recognition memory as well as the number and morphology of GFAP+ immunoreactive cells, in the hippocampus and frontal cortex of mice subjected to prolonged restraint stress...
September 2017: Experimental Neurology
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