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https://www.readbyqxmd.com/read/28431036/effects-of-delay-duration-on-the-wms-logical-memory-performance-of-older-adults-with-probable-alzheimer-s-disease-probable-vascular-dementia-and-normal-cognition
#1
Valencia Montgomery, Katie Harris, Anthony Stabler, Lisa H Lu
Objective: To examine how the duration of time delay between Wechsler Memory Scale (WMS) Logical Memory I and Logical Memory II (LM) affected participants' recall performance. Method: There are 46,146 total Logical Memory administrations to participants diagnosed with either Alzheimer's disease (AD), vascular dementia (VaD), or normal cognition in the National Alzheimer's Disease Coordinating Center's Uniform Data Set. Results: Only 50% of the sample was administered the standard 20-35 min of delay as specified by WMS-R and WMS-III...
May 1, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28431034/effects-of-sleep-loss-on-subjective-complaints-and-objective-neurocognitive-performance-as-measured-by-the-immediate-post-concussion-assessment-and-cognitive-testing
#2
Ryan P J Stocker, Hassen Khan, Luke Henry, Anne Germain
Objective: This study examined the effects of total and partial sleep deprivation on subjective symptoms and objective neurocognitive performance, as measured by the Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) in a sample of healthy adults. Method: One-hundred and two, right-handed, healthy participants (between ages 18 and 30 years old) completed three consecutive nights in the sleep laboratory with concurrent continuous polysomnography monitoring...
May 1, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28431029/the-chinese-version-of-the-brief-assessment-of-cognition-in-schizophrenia-data-of-a-large-scale-mandarin-speaking-population
#3
Liang-Jen Wang, Yu-Chi Huang, Chi-Fa Hung, Chih-Ken Chen, Yi-Chih Chen, Pei-Yi Lee, Si-Ming Wang, Ming-Hsiung Liu, Chia-Ju Lin, Su-Ting Hsu
Objective: The Brief Assessment of Cognition in Schizophrenia (BACS) is a cognitive assessment tool used to measure the broad aspects of cognition that are most frequently impaired in patients with schizophrenia. This study aims to develop the normative data of the Chinese version of the BACS among the Mandarin-speaking population. Method: This cross-sectional study included 382 healthy participants (age range: 19-79 years; mean age: 48.0 ± 16.7 years, 47.6% men) in Taiwan, who were evaluated with the BACS...
May 1, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28430857/repurposed-drugs-targeting-eif2%C3%AE-p-mediated-translational-repression-prevent-neurodegeneration-in-mice
#4
Mark Halliday, Helois Radford, Karlijn A M Zents, Collin Molloy, Julie A Moreno, Nicholas C Verity, Ewan Smith, Catharine A Ortori, David A Barrett, Martin Bushell, Giovanna R Mallucci
Signalling through the PERK/eIF2α-P branch of the unfolded protein response plays a critical role in controlling protein synthesis rates in cells. This pathway is overactivated in brains of patients with Alzheimer's disease and related disorders and has recently emerged as a promising therapeutic target for these currently untreatable conditions. Thus, in mouse models of neurodegenerative disease, prolonged overactivation of PERK/eIF2α-P signalling causes sustained attenuation of protein synthesis, leading to memory impairment and neuronal loss...
April 19, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28430849/performance-and-symptom-validity-testing-as-a-function-of-medical-board-evaluation-in-u-s-military-service-members-with-a-history-of-mild-traumatic-brain-injury
#5
Patrick Armistead-Jehle, Wesley R Cole, Robert L Stegman
Objective: The study was designed to replicate and extend pervious findings demonstrating the high rates of invalid neuropsychological testing in military service members (SMs) with a history of mild traumatic brain injury (mTBI) assessed in the context of a medical evaluation board (MEB). Method: Two hundred thirty-one active duty SMs (61 of which were undergoing an MEB) underwent neuropsychological assessment. Performance validity (Word Memory Test) and symptom validity (MMPI-2-RF) test data were compared across those evaluated within disability (MEB) and clinical contexts...
April 20, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28430846/a-case-of-bariatric-surgery-related-wernicke-korsakoff-syndrome-with-persisting-anterograde-amnesia
#6
Philip Gerard Gasquoine
Objective: To describe the theoretical and clinical implications of the neuropsychological evaluation of a case of bariatric surgery-related Wernicke-Korsakoff syndrome. Method: The patient was a 37-year old, female, bilingual, bachelor's degree educated, Mexican American public relations consultant without preexisting psychiatric, neurological, or substance abuse history. Recovery from laparoscopic sleeve gastrectomy surgery for morbid obesity was complicated by intraabdominal abscess, multibacterial infection, and prolonged nausea and vomiting...
April 20, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28430628/critical-role-of-matrix-metallopeptidase-9-in-postoperative-cognitive-dysfunction-and-age-dependent-cognitive-decline
#7
Jiangjiang Bi, Weiran Shan, Ailin Luo, Zhiyi Zuo
BACKGROUND: Postoperative cognitive dysfunction (POCD) is a significant clinical syndrome. Neuroinflammation is an important pathological process for POCD. However, it is not clear how systemic inflammation induced by surgery on peripheral tissues or organs is transmitted into the brain. We determined whether matrix metallopeptidase 9 (MMP9), a protein that can increase blood-brain barrier permeability, is critical in this transmission. The role of MMP9 in age-dependent cognitive decline was also determined...
February 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429909/association-between-maternal-vitamin-d-status-during-pregnancy-and-offspring-cognitive-function-during-childhood-and-adolescence
#8
Sargoor R Veena, Ghattu V Krishnaveni, Krishnamachari Srinivasan, Kotrangada P Thajna, Bhavya G Hegde, Catharine R Gale, Caroline Hd Fall
BACKGROUND AND OBJECTIVES: Animal studies have demonstrated poor cognitive outcomes in offspring in relation to maternal vitamin D deficiency before and/or during pregnancy. Human studies linking maternal vitamin D status during pregnancy with offspring cognitive function are limited. We aimed to test the hypothesis that lower maternal vitamin D status during pregnancy is associated with poor offspring cognitive ability in an Indian population. METHODS AND STUDY DESIGN: Cognitive function was assessed in children from the Mysore Parthenon birth cohort during childhood (age 9-10 years; n=468) and adolescence (age 13-14 years; n=472) using 3 core tests from the Kaufman Assessment Battery for children and additional tests measuring learning, long-term retrieval/ storage, short-term memory, reasoning, verbal fluency, visuo-spatial ability, and attention and concentration...
May 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28429887/effects-of-aluminium-on-long-term-memory-in-rats-and-on-sirt1-mediating-the-transcription-of-creb-dependent-gene-in-hippocampus
#9
Dongying Yan, Cuihong Jin, Yang Cao, Lulu Wang, Xiaobo Lu, Jinghua Yang, Shengwen Wu, Yuan Cai
Epidemiological investigations have shown that aluminium (Al) is an important neurotoxicant which can be absorbed by organisms via various routes. Previous studies have confirmed that exposure to Al could cause neurodegenerative diseases, decline CREB phosphorylation and then down-regulate the transcription and protein expression of its target genes including BDNF. However, recent studies revealed that CREB activation alone was far from enough to activate the expression of long-term memory (LTM) related genes; there might be other regulatory factors involved in this process...
April 21, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28429801/the-dizzy-patient-don-t-forget-disorders-of-the-central-vestibular-system
#10
REVIEW
Thomas Brandt, Marianne Dieterich
Vertigo and dizziness are among the most common complaints in neurology clinics, and they account for about 13% of the patients entering emergency units. In this Review, we focus on central vestibular disorders, which are mostly attributable to acute unilateral lesions of the bilateral vestibular circuitry in the brain. In a tertiary interdisciplinary outpatient dizziness unit, central vestibular disorders, including vestibular migraine, comprise about 25% of the established diagnoses. The signs and symptoms of these disorders can mimic those of peripheral vestibular disorders with sustained rotational vertigo...
April 21, 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/28429640/spinal-alterations-of-reil-insula-in-alzheimer-s-disease
#11
Foivos E Petrides, Ioannis A Mavroudis, Martha Spilioti, Fotios G Chatzinikolaou, Vasiliki G Costa, Stavros J Baloyannis
Alzheimer's disease (AD) is a progressive neurodegenerative disease that involves numerous cellular and biochemical mechanisms resulting in synaptic alterations and extensive neuronal loss. It is primarily characterized by impairment of memory, associated frequently with mood disorders. Continuous studies have shown that insula may be an important target of AD, but neuropathological alterations have not been described extensively. In the present study, we attempted to describe the morphometric and morphological changes of the spines of Reil insula in AD in comparison with normal aging using a silver impregnation technique...
January 1, 2017: American Journal of Alzheimer's Disease and Other Dementias
https://www.readbyqxmd.com/read/28429381/the-structural-connectome-of-children-with-traumatic-brain-injury
#12
Marsh Königs, L W Ernest van Heurn, Roel Bakx, R Jeroen Vermeulen, J Carel Goslings, Bwee Tien Poll-The, Marleen van der Wees, Coriene E Catsman-Berrevoets, Jaap Oosterlaan, Petra J W Pouwels
This study aimed to investigate the impact of mild to severe pediatric TBI on the structural connectome. Children aged 8-14 years with trauma control (TC) injury (n = 27) were compared to children with mild TBI and risk factors for complicated TBI (mild(RF+) , n = 20) or moderate/severe TBI (n = 16) at 2.8 years post-injury. Probabilistic tractography on diffusion tensor imaging data was used in combination with graph theory to study structural connectivity. Functional outcome was measured using neurocognitive tests and parent and teacher questionnaires for behavioral functioning...
April 21, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28428166/vascular-cognitive-impairment-in-a-memory-clinic-population-rationale-and-design-of-the-utrecht-amsterdam-clinical-features-and-prognosis-in-vascular-cognitive-impairment-trace-vci-study
#13
EDITORIAL
Jooske Marije Funke Boomsma, Lieza Geertje Exalto, Frederik Barkhof, Esther van den Berg, Jeroen de Bresser, Rutger Heinen, Huiberdina Lena Koek, Niels Daniël Prins, Philip Scheltens, Henry Chanoch Weinstein, Wiesje Maria van der Flier, Geert Jan Biessels
BACKGROUND: Vascular Cognitive Impairment (VCI) refers to cognitive dysfunction due to vascular brain injury, as a single cause or in combination with other, often neurodegenerative, etiologies. VCI is a broad construct that captures a heterogeneous patient population both in terms of cognitive and noncognitive symptoms and in terms of etiology and prognosis. This provides a challenge when applying this construct in clinical practice. OBJECTIVE: This paper presents the rationale and design of the TRACE-VCI study, which investigates the clinical features and prognosis of VCI in a memory clinic setting...
April 19, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28428145/prior-treadmill-exercise-promotes-resilience-to-vicarious-trauma-in-rats
#14
Camila Kochi, Hesong Liu, Safiyya Zaidi, Fatin Atrooz, Phoebe Dantoin, Samina Salim
BACKGROUND: Post-traumatic stress disorder (PTSD) is a serious psychological condition, which can develop both from physically experiencing and also from witnessing traumatic events. There is evidence that physical exercise can have a positive impact on the symptoms of PTSD. Relevant to this, in our previous pre-clinical work, beneficial effects of treadmill exercise were reported on PTSD-like behaviors in a social defeat paradigm, a rat model of direct physical trauma. However, the role of exercise on vicariously acquired PTSD-like phenotype was not examined...
April 17, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28427989/egocentric-and-allocentric-visuospatial-working-memory-in-premotor-huntington-s-disease-a-double-dissociation-with-caudate-and-hippocampal-volumes
#15
Katherine L Possin, Hosung Kim, Michael D Geschwind, Tacie Moskowitz, Erica T Johnson, Sharon J Sha, Alexandra Apple, Duan Xu, Bruce L Miller, Steven Finkbeiner, Christopher P Hess, Joel H Kramer
Our brains represent spatial information in egocentric (self-based) or allocentric (landmark-based) coordinates. Rodent studies have demonstrated a critical role for the caudate in egocentric navigation and the hippocampus in allocentric navigation. We administered tests of egocentric and allocentric working memory to individuals with premotor Huntington's disease (pmHD), which is associated with early caudate nucleus atrophy, and controls. Each test had 80 trials during which subjects were asked to remember 2 locations over 1-sec delays...
April 17, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28427569/chronic-low-level-exposure-to-the-common-seafood-toxin-domoic-acid-causes-cognitive-deficits-in-mice
#16
Kathi A Lefebvre, Preston S Kendrick, Warren Ladiges, Emma M Hiolski, Bridget E Ferriss, Donald R Smith, David J Marcinek
The consumption of one meal of seafood containing domoic acid (DA) at levels high enough to induce seizures can cause gross histopathological lesions in hippocampal regions of the brain and permanent memory loss in humans and marine mammals. Seafood regulatory limits have been set at 20mgDA/kg shellfish to protect human consumers from symptomatic acute exposure, but the effects of repetitive low-level asymptomatic exposure remain a critical knowledge gap. Recreational and Tribal-subsistence shellfish harvesters are known to regularly consume low levels of DA...
April 2017: Harmful Algae
https://www.readbyqxmd.com/read/28427320/the-role-of-inelastic-deformations-in-the-mechanical-response-of-endovascular-shape-memory-alloy-devices
#17
Lorenza Petrini, Alessandro Bertini, Francesca Berti, Giancarlo Pennati, Francesco Migliavacca
Nickel-titanium alloys are commonly adopted for producing cardiovascular minimally invasive devices such as self-expandable stents, aortic valves and stent-grafts. These devices are subjected to cyclic loads (due to blood pulsatility, leg or heart movements), that can induce fatigue fracture, and may also be subjected to very large deformations (due to crimping procedure, a tortuous physiological path or overloads), that can induce material yield. Recently, the authors developed a new constitutive model that considers inelastic strains due to not-completed reverse phase transformation (not all the stress-induced martensite turns back to austenite) or/and plasticity and their accumulation during cyclic loads...
May 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28427300/object-decision-test-borb-normative-data-for-the-adult-quebec-population-and-performance-in-alzheimer-s-disease-and-the-semantic-variant-of-primary-progressive-aphasia
#18
Alexandre St-Hilaire, Marie-Claude Blackburn, Maximiliano A Wilson, Robert Jr Laforce, Carol Hudon, Joël Macoir
Object decision (OD) test is one subtest of the Birmingham Object Recognition Battery (BORB). It is useful for differential diagnosis among several neurodegenerative diseases. However, normative data provided with this battery count on very few subjects and do not control for the effect of age, which limits interpretability. The purpose of Study 1 was to provide normative data for the OD test of the BORB (version A-hard). The objectives of Study 2 were to establish the diagnostic validity of this task and predictive validity of the normative data in the case of the semantic variant of primary progressive aphasia (svPPA) and Alzheimer's disease (AD)...
April 21, 2017: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
https://www.readbyqxmd.com/read/28426969/chemogenetic-interrogation-of-a-brain-wide-fear-memory-network-in-mice
#19
Gisella Vetere, Justin W Kenney, Lina M Tran, Frances Xia, Patrick E Steadman, John Parkinson, Sheena A Josselyn, Paul W Frankland
Behavior depends on coordinated activity across multiple brain regions. Within such networks, highly connected hub regions are assumed to disproportionately influence behavioral output, although this hypothesis has not been systematically evaluated. Previously, by mapping brain-wide expression of the activity-regulated gene c-fos, we identified a network of brain regions co-activated by fear memory. To test the hypothesis that hub regions are more important for network function, here, we simulated node deletion in silico in this behaviorally defined functional network...
April 19, 2017: Neuron
https://www.readbyqxmd.com/read/28426648/pregnancy-swimming-causes-short-and-long-term-neuroprotection-against-hypoxia-ischemia-in-very-immature-rats
#20
Eduardo Farias Sanches, Luz Elena Duran Carabali, Andrea Tosta, Fabrício Nicola, Felipe Schmitz, André Rodrigues, Cassiana Siebert, Angela Wyse, Carlos Alexandre Netto
BACKGROUND: Hypoxia-ischemia (HI) is a major cause of neurological damage in preterm. Pregnancy swimming alters the pup's brain development. We tested the effects of swimming during pregnancy in the very immature rat brain. METHODS: Female Wistar rats (n=12) were assigned to sedentary (SE, n=6) or swimming groups (SW, n=6). From the gestational day 0 (DG0) to GD21 they performed 20 min/daily swimming sessions. HI on postnatal day 3 rat cause sensorimotor and cognitive impairments...
April 20, 2017: Pediatric Research
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