keyword
MENU ▼
Read by QxMD icon Read
search

Memory function

keyword
https://www.readbyqxmd.com/read/28743159/chronic-hepatitis-c-virus-infection-and-neurocognitive-function-in-adult-survivors-of-childhood-cancer
#1
Adrienne Studaway, Rohit P Ojha, Tara M Brinkman, Nan Zhang, Malek Baassiri, Pia Banerjee, Matthew J Ehrhardt, Deokumar Srivastava, Leslie L Robison, Melissa M Hudson, Kevin R Krull
BACKGROUND: Cancer survivors transfused with blood products before reliable screening for hepatitis C virus (HCV) are at risk for infection. This study examined the impact of HCV on neurocognitive function and health-related quality of life (HRQOL) among adult survivors of childhood cancer. METHODS: Neurocognitive testing was conducted for 836 adult survivors of childhood cancer (mean age, 35 years [standard deviation, 7.4 years]; time since diagnosis, 29 years [standard deviation, 6...
July 25, 2017: Cancer
https://www.readbyqxmd.com/read/28743131/the-spatial-extent-of-epiretinal-electrical-stimulation-in-the-healthy-mouse-retina
#2
Zohreh Hosseinazdeh, Archana Jalligampala, Eberhart Zrenner, Daniel Lleweylln Rathbun
BACKGROUND/AIMS: Retinal prostheses use electrical stimulation to restore functional vision to patients blinded by retinitis pigmentosa. A key detail is the spatial pattern of ganglion cells activated by stimulation. Therefore, we characterized the spatial extent of network-mediated electrical activation of retinal ganglion cells (RGCs) in the epiretinal monopolar electrode configuration. METHODS: Healthy mouse RGC activities were recorded with a micro-electrode array (MEA)...
July 26, 2017: Neuro-Signals
https://www.readbyqxmd.com/read/28743108/high-density-lipoprotein-cholesterol-level-relates-to-working-memory-immediate-and-delayed-cued-recall-in-brazilian-older-adults-the-role-of-cognitive-reserve
#3
Andreas Ihle, Élvio R Gouveia, Bruna R Gouveia, Duarte L Freitas, Jefferson Jurema, Maria A Tinôco, Matthias Kliegel
AIMS: The present study set out to investigate the relation of the high-density lipoprotein cholesterol (HDL-C) level to cognitive performance and its interplay with key markers of cognitive reserve in a large sample of older adults. METHODS: We assessed tests of working memory, immediate and delayed cued recall in 701 older adults from Amazonas, Brazil. The HDL-C level was derived from fasting blood samples. In addition, we interviewed individuals on their education, past occupation, and cognitive leisure activity...
July 26, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28743056/apigenin-attenuates-isoflurane-induced-cognitive-dysfunction-via-epigenetic-regulation-and-neuroinflammation-in-aged-rats
#4
Lin Chen, Wenji Xie, Wenqin Xie, Weiqiang Zhuang, Changcheng Jiang, Naizhen Liu
PURPOSE OF THE RESEARCH: Post operational cognitive dysfunction (POCD) occurs in patients after anesthesia and surgery. Abnormal histone acetylation and neuroinflammation are key factors in the pathogenesis of cognitive impairment. Apigenin not only has an anti-inflammatory activity but also modifies histone acetylation. We aimed to investigate whether apigenin can attenuate isoflurane exposure-induced cognitive decline by regulating histone acetylation and inflammatory signaling. MATERIALS AND METHODS: Spatial learning and memory were assessed by Morris water maze test...
July 6, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28743040/prenatal-exposure-to-organophosphorus-pesticides-and-childhood-neurodevelopmental-phenotypes
#5
Melissa A Furlong, Amy Herring, Jessie P Buckley, Barbara D Goldman, Julie L Daniels, Lawrence S Engel, Mary S Wolff, Jia Chen, Jim Wetmur, Dana Boyd Barr, Stephanie M Engel
Prenatal exposure to organophosphorus pesticides (OPs) has been associated with different neurodevelopmental outcomes across different cohorts. A phenotypic approach may address some of these differences by incorporating information across scales and accounting for the complex correlational structure of neurodevelopmental outcomes. Additionally, Bayesian hierarchical modeling can account for confounding by collinear co-exposures. We use this framework to examine associations between prenatal exposure to OPs and behavior, executive functioning, and IQ assessed at age 6-9 years in a cohort of 404 mother/infant pairs recruited during pregnancy...
July 22, 2017: Environmental Research
https://www.readbyqxmd.com/read/28742882/t-cell-intrinsic-tlr2-stimulation-promotes-il-10-expression-and-suppressive-activity-by-cd45rbhi-t-cells
#6
Janice C Jun, Mark B Jones, Douglas M Oswald, Edward S Sim, Amruth R Jonnalagadda, Lori S C Kreisman, Brian A Cobb
While Toll-like receptors (TLRs) represent one of the best characterized innate immune pathways, evidence suggests that TLRs are not restricted to innate leukocytes and some epithelial cells, but are also expressed in T cells. Specifically, published evidence focusing on FoxP3+ regulatory T cells demonstrate that they express functional TLR2, which is already known among the TLR family for its association with immune suppression; however, little is known about the relationship between T cell-intrinsic TLR2 binding and cytokine production, T cell differentiation, or T cell receptor (TCR) stimulation...
2017: PloS One
https://www.readbyqxmd.com/read/28742612/short-sleep-and-adolescents-performance-on-a-concussion-assessment-battery-an-experimental-sleep-manipulation-study
#7
Dean W Beebe, Scott W Powers, Eric W Slattery, Paul J Gubanich
OBJECTIVE: Correlational studies have linked short sleep to adolescents' report of postconcussion symptoms and cognitive performance during concussion assessments. This study tested whether those are cause-effect relationships. DESIGN: Three-week randomly counterbalanced, within-subjects, crossover experiment. SETTING: Adolescents slept at home with weekly visits to an outpatient clinic for sleep monitor uploads and outcome assessments. PARTICIPANTS: Twenty-four healthy 14- to 17...
July 21, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28742320/nanoscale-probing-of-elastic-electronic-response-to-vacancy-motion-in-nio-nanocrystals
#8
Fran Kurnia, Jeffrey Cheung, Xuan Cheng, Jivika Sullaphen, Sergei V Kalinin, Nagarajan Valanoor, Rama K Vasudevan
Measuring the diffusion of ions and vacancies at nanometer length scales is crucial to understanding fundamental mechanisms driving technologies as diverse as batteries, fuel cells and memristors; yet such measurements remains extremely challenging. Here, we employ a multi-modal scanning probe microscopy (SPM) technique to explore the interplay between electronic, elastic and ionic processes via first order reversal curve I-V measurements in conjunction with electrochemical strain microscopy (ESM). The technique is employed to investigate the diffusion of oxygen vacancies in model epitaxial nickel oxide (NiO) nanocrystals with resistive switching characteristics...
July 25, 2017: ACS Nano
https://www.readbyqxmd.com/read/28742159/%C3%AE-adrenergic-signaling-broadly-contributes-to-ltp-induction
#9
Joanna Jȩdrzejewska-Szmek, Vincent Luczak, Ted Abel, Kim T Blackwell
Long-lasting forms of long-term potentiation (LTP) represent one of the major cellular mechanisms underlying learning and memory. One of the fundamental questions in the field of LTP is why different molecules are critical for long-lasting forms of LTP induced by diverse experimental protocols. Further complexity stems from spatial aspects of signaling networks, such that some molecules function in the dendrite and some are critical in the spine. We investigated whether the diverse experimental evidence can be unified by creating a spatial, mechanistic model of multiple signaling pathways in hippocampal CA1 neurons...
July 24, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28742120/virus-induced-asthma-attack-the-importance-of-allergic-inflammation-in-response-to-viral-antigen-in-an-animal-model-of-asthma
#10
Christopher Skappak, Ramses Ilarraza, Ying-Qi Wu, Matthew G Drake, Darryl J Adamko
Asthma exacerbation can be a life-threatening condition, and is most often triggered by common respiratory viruses. Poor asthma control and worsening of respiratory function is associated with increased airway inflammation, including eosinophilia. Prevention of asthma exacerbation relies on treatment with corticosteroids, which preferentially inhibit allergic inflammation like eosinophils. Human studies demonstrate that inactivated virus can trigger eosinophil activation in vitro through antigen presentation and memory CD4+ lymphocytes...
2017: PloS One
https://www.readbyqxmd.com/read/28742080/emergent-remitted-and-persistent-psychosis-spectrum-symptoms-in-22q11-2-deletion-syndrome
#11
S X Tang, T M Moore, M E Calkins, J J Yi, D M McDonald-McGinn, E H Zackai, B S Emanuel, R C Gur, R E Gur
Individuals with 22q11.2 deletion syndrome (22q11DS) are at markedly elevated risk for schizophrenia-related disorders. Stability, emergence, remission and persistence of psychosis-spectrum symptoms were investigated longitudinally. Demographic, clinical and cognitive predictors of psychosis were assessed. Prospective follow-up over 2.8 years was undertaken in 75 individuals with 22q11DS aged 8-35 years. Mood, anxiety, attention-deficit hyperactivity disorders and psychosis-spectrum symptoms were assessed with the Kiddie-Schedule for Affective Disorders and Schizophrenia and Scale of Prodromal Symptoms (SOPS)...
July 25, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28742040/an-hp-adaptive-discretization-algorithm-for-signed-distance-field-generation
#12
Dan Koschier, Crispin Deul, Magnus Brand, Jan Bender
In this paper we present an hp-adaptive algorithm to generate discrete higher-order polynomial Signed Distance Fields (SDFs) on axis-aligned hexahedral grids from manifold polygonal input meshes. Using an orthonormal polynomial basis, we efficiently fit the polynomials to the underlying signed distance function on each cell. The proposed error-driven construction algorithm is globally adaptive and iteratively refines the SDFs using either spatial subdivision ( h-refinement) following an octree scheme or by cell-wise adaption of the polynomial approximation's degree ( p-refinement)...
July 21, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28742018/dynamic-structure-of-locomotor-behavior-in-walking-fruit-flies
#13
Alexander Y Katsov, Limor Freifeld, Mark Horowitz, Seppe Kuehn, Thomas R Clandinin
The function of the brain is unlikely to be understood without an accurate description of its output, yet the nature of movement elements and their organization remains an open problem. Here, movement elements are identified from dynamics of walking in flies, using unbiased criteria. On one time scale, dynamics of walking are consistent over hundreds of milliseconds, allowing elementary features to be defined. Over longer periods, walking is well described by a stochastic process composed of these elementary features, and a generative model of this process reproduces individual behavior sequences accurately over seconds or longer...
July 25, 2017: ELife
https://www.readbyqxmd.com/read/28741672/finding-of-increased-caudate-nucleus-in-patients-with-alzheimer-s-disease
#14
K Persson, V D Bohbot, N Bogdanovic, G Selbaek, A Braekhus, K Engedal
OBJECTIVES: A recently published study using an automated MRI volumetry method (NeuroQuant®) unexpectedly demonstrated larger caudate nucleus volume in patients with Alzheimer's disease dementia (AD) compared to patients with subjective and mild cognitive impairment (SCI and MCI). The aim of this study was to explore this finding. MATERIALS & METHODS: The caudate nucleus and the hippocampus volumes were measured (both expressed as ratios of intracranial volume) in a total of 257 patients with SCI and MCI according to the Winblad criteria and AD according to ICD-10 criteria...
July 25, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28741437/traumatic-brain-injury-in-a-community-based-cohort-of-homeless-and-vulnerably-housed-individuals
#15
Toby Schmitt, Allen Thornton, Iris Rawtaer, Alasdair Barr, Kristina Gicas, Donna Lang, Talia Vertinsky, Alexander Rauscher, Ric Procyshyn, Tari Buchanan, Alex Cheng, Sarah Mackay, Olga Leonova, Verena Langheimer, Thalia Field, Manraj K S Heran, Fidel Vila-Rodriguez, Tiffany-Anne O'Connor, William MacEwan, William Honer, William Panenka
We characterized traumatic brain injury (TBI) and studied its associations with mental and physical health in a community cohort of homeless and vulnerably-housed individuals. METHODS: Detailed mental and physical health structured interviews, neuropsychological testing, and multimodal MRI were performed on 283 participants. Two traumatic brain injury (TBI) participant groups were defined for primary analyses: those with a self-reported history of TBI and those with MRI evidence of TBI...
July 25, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28741396/intraoperative-nerve-monitoring-reduces-recurrent-laryngeal-nerve-injury-in-geriatric-patients-undergoing-thyroid-surgery
#16
Huang Kai, Lin Xixia, Long Miaoyun, Chen Qinchang, Peng Xinzhi, Luo Dingyuan, Li Honghao
OBJECTIVE: This research was aimed to investigate whether the intraoperative nerve monitoring (IONM) can reduce the incidence of recurrent laryngeal nerve (RLN) injury in geriatric patients undergoing thyroid surgery. METHODS: This retrospective cohort study included 522 geriatric patients undergoing thyroid surgery between January 2013 and June 2016 in the Sun Yat-sen Memorial Hospital. Patients with IONM during the surgery (n = 340) were compared with patients without IONM (n = 212)...
July 25, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28741361/3d-printed-shape-memory-objects-based-on-olefin-ionomer-of-zinc-neutralized-poly-ethylene-co-methacrylic-acid
#17
Zhiyang Zhao, Fang Peng, Kevin A Cavicchi, Mukerrem Miko Cakmak, Robert A Weiss, Bryan D Vogt
3D printing enables the net shape manufacturing of objects with minimal material waste and low tooling costs, but the functionality is generally limited by available materials, especially for extrusion based printing such as Fused Deposition Modeling (FDM). Here we demonstrate shape memory behavior of 3D printed objects with FDM using a commercially available olefin ionomer, Surlyn 9520, which is zinc neutralized poly(ethylene-co-methacrylic acid). The initial fixity for 3D printed and compression molded samples was similar, but the initial recovery was much lower for the 3D printed sample (R=58%) than the compression molded sample (R=83%)...
July 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28740870/reduced-ventral-tegmental-area-hippocampal-connectivity-in-children-and-adolescents-exposed-to-early-threat
#18
Hilary A Marusak, Joshua R B Hatfield, Moriah E Thomason, Christine A Rabinak
BACKGROUND: Preclinical data suggest that early life stress has detrimental effects on the brain's dopaminergic system, particularly the mesocorticolimbic pathway. Altered dopamine function is thought to contribute to the development of stress-related pathologies; yet, little is known about the impact of early stress on dopamine systems during childhood and adolescence, when stress-related disorders frequently emerge. Here, we evaluate the impact of early threat exposure (violence, abuse) on functional connectivity of putative dopaminergic midbrain regions, the ventral tegmental area (VTA) and substantia nigra (SN), giving rise to mesocorticolimbic and nigrostriatal pathways, respectively...
March 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
https://www.readbyqxmd.com/read/28740827/self-versus-informant-reports-on-the-specific-levels-of-functioning-scale-relationships-to-depression-and-cognition-in-schizophrenia-and-schizoaffective-disorder
#19
Julia Ermel, Cameron S Carter, James M Gold, Angus W MacDonald, J Daniel Ragland, Steven M Silverstein, Milton E Strauss, Deanna M Barch
The goal of the current study was to examine the relationships between insight and both cognitive function and depression in schizophrenia and schizoaffective disorder, and to determine if there were similar relationships across diagnostic categories. We examined discrepancies between self and informant reports of function on the Specific levels of function scale as a metric of insight for interpersonal, social acceptance, work and activities. We examined two samples of individuals with schizophrenia and/or schizoaffective disorder (Ns of 188 and 67 respectively)...
September 2017: Schizophrenia Research. Cognition
https://www.readbyqxmd.com/read/28740826/epicog-sch-a-brief-battery-to-screen-cognitive-impact-of-schizophrenia-in-stable-outpatients
#20
Silvia Zaragoza Domingo, Julio Bobes, Maria-Paz García-Portilla, Claudia Morralla
Brief batteries in schizophrenia, are needed to screen for the cognitive impact of schizophrenia. We aimed to validate and co-norm the Epidemiological Study of Cognitive Impairment in Schizophrenia (EPICOG-SCH) derived brief cognitive battery. A cross-sectional outpatient evaluation was conducted of six-hundred-seventy-two patients recruited from 234 centers. The brief battery included well-known subtests available worldwide that cover cognitive domains related to functional outcomes: WAIS-III-Letter-Number-Sequencing-LNS, Category Fluency Test-CFT, Logical-Memory Immediate Recall-LM, and Digit-Symbol-Coding-DSC...
June 2017: Schizophrenia Research. Cognition
keyword
keyword
99638
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"