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https://www.readbyqxmd.com/read/29793154/juvenile-treatment-with-mglur2-3-agonist-prevents-schizophrenia-like-phenotypes-in-adult-by-acting-through-gsk3%C3%AE
#1
Bo Xing, Genie Han, Min-Juan Wang, Melissa A Snyder, Wen-Jun Gao
Prodromal memory deficits represent an important marker for the development of schizophrenia (SZ), in which glutamatergic hypofunction occurs in the prefrontal cortex (PFC). The mGluR2/3 agonist LY379268 (LY37) attenuates excitatory N-methyl-D-aspartate receptor (NMDAR)-induced neurotoxicity, a central pathological characteristic of glutamatergic hypofunction. We therefore hypothesized that early treatment with LY37 would rescue cognitive deficits and confer benefits for SZ-like behaviors in adults. To test this, we assessed whether early intervention with LY37 would improve learning outcomes in the Morris Water Maze for rats prenatally exposed to methylazoxymethanol acetate (MAM), a neurodevelopmental SZ model...
May 14, 2018: Neuropharmacology
https://www.readbyqxmd.com/read/29793130/anxiety-memories-and-coping-in-patients-undergoing-intracranial-tumor-surgery
#2
Tom J van Ark, Markus Klimek, Peter de Smalen, Arnaud J P E Vincent, Robert Jan Stolker
OBJECTIVES: The diagnosis and the surgical removal of a brain tumor can have serious impact on the quality of life of a patient. The question rises, whether having more or just less memories of the procedure is better for coping with such an event. Furthermore, for preoperative information of future patients it is important to know how patients process their emotions and memories. The primary objective of this study was to investigate the link between preoperative anxiety, the perioperative experience and the quantity and quality of postoperative memories in patients who underwent intracranial tumor surgery...
May 17, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29792878/deoxyelephantopin-ameliorates-lipopolysaccharides-lps-induced-memory-impairments-in-rats-evidence-for-its-anti-neuroinflammatory-properties
#3
Shathiswaran N Andy, Vijayapandi Pandy, Zazali Alias, Habsah Abdul Kadir
AIM: Neuroinflammation is a critical pathogenic mechanism of most neurodegenerative disorders especially, Alzheimer's disease (AD). Lipopolysaccharides (LPS) are known to induce neuroinflammation which is evident from significant upsurge of pro-inflammatory mediators in in vitro BV-2 microglial cells and in vivo animal models. In present study, we investigated anti-neuroinflammatory properties of deoxyelephantopin (DET) isolated from Elephantopus scaber in LPS-induced neuroinflammatory rat model...
May 21, 2018: Life Sciences
https://www.readbyqxmd.com/read/29792873/effect-of-alzheimer-s-disease-risk-and-protective-factors-on-cognitive-trajectories-in-subjective-memory-complainers
#4
Stefan J Teipel, Enrica Cavedo, Simone Lista, Marie-Odile Habert, Marie-Claude Potier, Michel J Grothe, Stephane Epelbaum, Luisa Sambati, Geoffroy Gagliardi, Nicola Toschi, Michael Greicius, Bruno Dubois, Harald Hampel
INTRODUCTION: Cognitive change in people at risk of Alzheimer's disease (AD) such as subjective memory complainers is highly variable across individuals. METHODS: We used latent class growth modeling to identify distinct classes of nonlinear trajectories of cognitive change over 2 years follow-up from 265 subjective memory complainers individuals (age 70 years and older) of the INSIGHT-preAD cohort. We determined the effect of cortical amyloid load, hippocampus and basal forebrain volumes, and education on the cognitive trajectory classes...
May 21, 2018: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29792707/nano-scale-conductive-filament-with-alternating-rectification-as-an-artificial-synapse-building-block
#5
Dan Berco, Yu Zhou, Sankara Rao Gollu, Pranav Sairam Kalaga, Abhisek Kole, Mohamed Hassan, Diing Shenp Ang
A popular approach for resistive memory (RRAM) based hardware implementation of neural networks utilizes one (or two) device that functions as an analog synapse in a crossbar structure of perpendicular pre- and post-synaptic neurons. An ideal fully automated, large scale artificial neural network, that matches a biologic counterpart (in terms of density and energy consumption), thus requires nano sized, extremely low power devices with a wide dynamic range and multi level functionality. Unfortunately the tradeoff between these traits proves to be a serious obstacle in the realization of brain inspired computing platforms yet to be overcome...
May 24, 2018: ACS Nano
https://www.readbyqxmd.com/read/29792576/using-a-deep-learning-network-to-recognize-low-back-pain-in-static-standing
#6
Boyi Hu, Chong Kim, Xiaopeng Ning, Xu Xu
Low back pain remains one of the most prevalent musculoskeletal disorders, while algorithms that able to recognize low back pain patients from healthy population using balance performance data are rarely seen. In this study, human balance and body sway performance during standing trials were utilized to recognize chronic low back pain populations using deep neural networks. To be specific, forty-four chronic LBP and healthy individuals performed static standing tasks while their spine kinematics and center of pressure were recorded...
May 24, 2018: Ergonomics
https://www.readbyqxmd.com/read/29792505/a-new-test-for-the-assessment-of-working-memory-in-clinical-settings-validation-and-norming-of-a-month-ordering-task
#7
Imke Buekenhout, José Leitão, Ana A Gomes
Month ordering tasks have been used in experimental settings to obtain measures of working memory (WM) capacity in older/clinical groups based solely on their face validity. We sought to assess the appropriateness of using a month ordering task in other contexts, including clinical settings, as a psychometrically sound WM assessment. To this end, we constructed a month ordering task (ucMOT), studied its reliability (internal consistency and temporal stability), and gathered construct-related and criterion-related validity evidence for its use as a WM assessment...
May 24, 2018: Psychological Assessment
https://www.readbyqxmd.com/read/29792493/does-increased-effort-compensate-for-performance-debilitating-test-anxiety
#8
David W Putwain, Wendy Symes
It is well established that test anxiety is negatively related to examination performance. Based on attentional control theory, the aim of this study was to examine whether increased effort can protect against performance debilitating test anxiety. Four hundred and sixty-six participants (male = 228; 48.9%; White = 346, 74.3%; mean age = 15.7 years) completed self-report measures of test anxiety and effort that were matched to performance on a high-stakes secondary school examination. The worry and bodily symptoms components of test anxiety were negatively, and effort, positively related to examination performance...
May 24, 2018: School Psychology Quarterly
https://www.readbyqxmd.com/read/29792473/cognitive-and-affective-associations-with-an-ecologically-valid-test-of-theory-of-mind-across-the-lifespan
#9
Emilie Johansson Nolaker, Kim Murray, Francesca Happé, Rebecca A Charlton
OBJECTIVES: Many studies have demonstrated that theory of mind (ToM) ability declines with increasing age. Research has found that ToM-age associations are often mediated by other cognitive abilities particularly executive function. However, older adults rarely complain about real-world ToM difficulties. It has been suggested that older adults may perform better in real-world situations compared with experimental settings. METHOD: We examined performance on the Strange Stories Film Task (SSFT) which has been designed to assess ToM using naturalistic, video scenarios...
May 24, 2018: Neuropsychology
https://www.readbyqxmd.com/read/29792448/the-experimental-evidence-for-parapsychological-phenomena-a-review
#10
Etzel Cardeña
This article presents a comprehensive integration of current experimental evidence and theories about so-called parapsychological (psi) phenomena. Throughout history, people have reported events that seem to violate the common sense view of space and time. Some psychologists have been at the forefront of investigating these phenomena with sophisticated research protocols and theory, while others have devoted much of their careers to criticizing the field. Both stances can be explained by psychologists' expertise on relevant processes such as perception, memory, belief, and conscious and nonconscious processes...
May 24, 2018: American Psychologist
https://www.readbyqxmd.com/read/29792442/the-case-against-specialized-visual-spatial-short-term-memory
#11
Candice C Morey
The dominant paradigm for understanding working memory, or the combination of the perceptual, attentional, and mnemonic processes needed for thinking, subdivides short-term memory (STM) according to whether memoranda are encoded in aural-verbal or visual formats. This traditional dissociation has been supported by examples of neuropsychological patients who seem to selectively lack STM for either aural-verbal, visual, or spatial memoranda, and by experimental research using dual-task methods. Though this evidence is the foundation of assumptions of modular STM systems, the case it makes for a specialized visual STM system is surprisingly weak...
May 24, 2018: Psychological Bulletin
https://www.readbyqxmd.com/read/29792441/human-memory-reconsolidation-a-guiding-framework-and-critical-review-of-the-evidence
#12
James W B Elsey, Vanessa A Van Ast, Merel Kindt
Research in nonhuman animals suggests that reactivation can induce a transient, unstable state in a previously consolidated memory, during which the memory can be disrupted or modified, necessitating a process of restabilization in order to persist. Such findings have sparked a wave of interest into whether this phenomenon, known as reconsolidation, occurs in humans. Translating research from animal models to human experiments and even to clinical interventions is an exciting prospect, but amid this excitement, relatively little work has critically evaluated and synthesized existing research regarding human memory reconsolidation...
May 24, 2018: Psychological Bulletin
https://www.readbyqxmd.com/read/29792387/resveratrol-prevents-high-calorie-diet-induced-learning-and-memory-dysfunction-in-juvenile-c57bl-6j-mice
#13
Bao-Lei Xu, Hui Zhang, Li-Na Ma, Wen Dong, Zhi-Wei Zhao, Jing-Shuang Zhang, Yu-Lan Wang, Xu Zhang, Rong Wang
OBJECTIVE: Because resveratrol (RSV) has been shown to improve learning and memory, so we investigated the potential benefit of RSV on learning and memory deficits in juvenile mice fed with a HC diet and explored the molecular mechanisms underlying this process. METHODS: Six-week-old C57BL/6J mice were divided into three different diet groups: control, HC diet, and HC + RSV diet. Serum insulin and insulin-like growth factor 1 (IGF-1) levels were measured using enzyme-linked immunosorbent assays...
May 24, 2018: Neurological Research
https://www.readbyqxmd.com/read/29792294/training-working-memory-in-adolescents-using-serious-game-elements-pilot-randomized-controlled-trial
#14
Wouter J Boendermaker, Thomas E Gladwin, Margot Peeters, Pier J M Prins, Reinout W Wiers
BACKGROUND: Working memory capacity has been found to be impaired in adolescents with various psychological problems, such as addictive behaviors. Training of working memory capacity can lead to significant behavioral improvements, but it is usually long and tedious, taxing participants' motivation to train. OBJECTIVE: This study aimed to evaluate whether adding game elements to the training could help improve adolescents' motivation to train while improving cognition...
May 23, 2018: JMIR Serious Games
https://www.readbyqxmd.com/read/29792238/mapping-the-neuroanatomic-substrates-of-cognition-in-familial-attention-deficit-hyperactivity-disorder
#15
Rachel Muster, Saadia Choudhury, Wendy Sharp, Steven Kasparek, Gustavo Sudre, Philip Shaw
BACKGROUND: While the neuroanatomic substrates of symptoms of attention deficit hyperactivity disorder (ADHD) have been investigated, less is known about the neuroanatomic correlates of cognitive abilities pertinent to the disorder, particularly in adults. Here we define the neuroanatomic correlates of key cognitive abilities and determine if there are associations with histories of psychostimulant medication. METHODS: We acquired neuroanatomic magnetic resonance imaging data from 264 members of 60 families (mean age 29...
May 24, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29791929/documenting-routinely-what-matters-to-people-standardized-headings-for-health-records-of-patients-with-chronic-health-conditions
#16
Birgit Prodinger, Paul Rastall, Dipak Kalra, Darren Wooldridge, Iain Carpenter
OBJECTIVE:  Specifying the content in electronic health records (EHRs) through standardized headings based on international reference classifications will facilitate their semantic interoperability. The objective of this study was to specify potential chapter headings for EHRs aligned with the World Health Organization's (WHO) International Classification of Functioning, Disability, and Health (ICF) based on the perspectives of people living with chronic health conditions, carers, and professionals...
April 2018: Applied Clinical Informatics
https://www.readbyqxmd.com/read/29791900/re-operative-pancreaticoduodenectomy-challenges-and-outcomes
#17
Manish S Bhandare, Nikhil Mehta, Vikram Chaudhari, Naveena An Kumar, Esha Pai, Mahesh Goel, Shailesh V Shrikhande
BACKGROUND: Tata Memorial Centre (TMC) is a high-volume centre for pancreatic tumour resections. We found a continually increasing referral of pancreatic tumours for re-evaluation for surgery, after an initial unsuccessful attempt at resection. AIM: To evaluate reasons of initial in-operability, the feasibility of re-operative pancreatico-duodenectomy (R-PD) and short- and long-term outcomes after R-PD. METHODS: Data was collected from a prospective database of GI and hepato-pancreato-biliary service, TMC, Mumbai from January 2008 to December 2016...
May 23, 2018: Digestive Surgery
https://www.readbyqxmd.com/read/29791867/longitudinal-assessment-of-chemotherapy-induced-changes-in-brain-and-cognitive-functioning-a-systematic-review
#18
REVIEW
Mingmei Li, Karen Caeyenberghs
In addition to the burden of a life-threatening diagnosis, cancer patients are struggling with adverse side-effects from cancer treatment. Chemotherapy has been linked to an array of cognitive impairments and alterations in brain structure and function ("chemobrain"). In this review, we summarized the existing evidence that evaluate the changes in cognitive functioning and brain with chemotherapy, as assessed using structural and functional MRI-based techniques in a longitudinal design. This review followed the latest PRISMA guidelines using Embase, Medline, PsychINFO, Scopus, and Web of Science databases with date restrictions from 2012-2017...
May 20, 2018: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/29791850/the-memory-of-environmental-chemical-exposure-in-c-elegans-is-dependent-on-the-jumonji-demethylases-jmjd-2-and-jmjd-3-utx-1
#19
Jessica Camacho, Lisa Truong, Zeyneb Kurt, Yen-Wei Chen, Marco Morselli, Gerardo Gutierrez, Matteo Pellegrini, Xia Yang, Patrick Allard
How artificial environmental cues are biologically integrated and transgenerationally inherited is still poorly understood. Here, we investigate the mechanisms of inheritance of reproductive outcomes elicited by the model environmental chemical Bisphenol A in C. elegans. We show that Bisphenol A (BPA) exposure causes the derepression of an epigenomically silenced transgene in the germline for 5 generations, regardless of ancestral response. Chromatin immunoprecipitation sequencing (ChIP-seq), histone modification quantitation, and immunofluorescence assays revealed that this effect is associated with a reduction of the repressive marks H3K9me3 and H3K27me3 in whole worms and in germline nuclei in the F3, as well as with reproductive dysfunctions, including germline apoptosis and embryonic lethality...
May 22, 2018: Cell Reports
https://www.readbyqxmd.com/read/29791849/activation-of-entorhinal-cortical-projections-to-the-dentate-gyrus-underlies-social-memory-retrieval
#20
Celeste Leung, Feng Cao, Robin Nguyen, Krutika Joshi, Afif J Aqrabawi, Shuting Xia, Miguel A Cortez, O Carter Snead, Jun Chul Kim, Zhengping Jia
Social interactions are essential to our mental health, and a deficit in social interactions is a hallmark characteristic of numerous brain disorders. Various subregions within the medial temporal lobe have been implicated in social memory, but the underlying mechanisms that tune these neural circuits remain unclear. Here, we demonstrate that optical activation of excitatory entorhinal cortical perforant projections to the dentate gyrus (EC-DG) is necessary and sufficient for social memory retrieval. We further show that inducible disruption of p21-activated kinase (PAK) signaling, a key pathway important for cytoskeletal reorganization, in the EC-DG circuit leads to impairments in synaptic function and social recognition memory, and, importantly, optogenetic activation of the EC-DG terminals reverses the social memory deficits in the transgenic mice...
May 22, 2018: Cell Reports
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