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https://www.readbyqxmd.com/read/28441647/subjective-memory-in-a-national-sample-predicting-psychological-well-being
#1
Jacqueline A Mogle, Nikki Hill, Caroline McDermott
BACKGROUND: Individual perception of memory performance (i.e., subjective memory) is assessed using a variety of approaches. This article focuses on 2 such approaches: (1) self-comparison assessments that attempt to capture changes in memory ability over a period of time and (2) age-anchored comparisons that assess how an individual perceives their memory in relation to others their age. These different types of assessment may relate to psychological well-being differently due to the underlying mechanisms of assessment...
April 26, 2017: Gerontology
https://www.readbyqxmd.com/read/28441426/identification-of-genes-associated-with-dissociation-of-cognitive-performance-and-neuropathological-burden-multistep-analysis-of-genetic-epigenetic-and-transcriptional-data
#2
Charles C White, Hyun-Sik Yang, Lei Yu, Lori B Chibnik, Robert J Dawe, Jingyun Yang, Hans-Ulrich Klein, Daniel Felsky, Alfredo Ramos-Miguel, Konstantinos Arfanakis, William G Honer, Reisa A Sperling, Julie A Schneider, David A Bennett, Philip L De Jager
INTRODUCTION: The molecular underpinnings of the dissociation of cognitive performance and neuropathological burden are poorly understood, and there are currently no known genetic or epigenetic determinants of the dissociation. METHODS AND FINDINGS: "Residual cognition" was quantified by regressing out the effects of cerebral pathologies and demographic characteristics on global cognitive performance proximate to death. To identify genes influencing residual cognition, we leveraged neuropathological, genetic, epigenetic, and transcriptional data available for deceased participants of the Religious Orders Study (n = 492) and the Rush Memory and Aging Project (n = 487)...
April 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28440769/advanced-glycation-end-products-in-morbid-obesity-and-after-bariatric-surgery-when-glycemic-memory-starts-to-fail
#3
Enric Sánchez, Juan Antonio Baena-Fustegueras, María Cruz de la Fuente, Liliana Gutiérrez, Marta Bueno, Susana Ros, Albert Lecube
BACKGROUND AND OBJECTIVE: Advanced glycation end-products (AGEs) are a marker of metabolic memory. Their levels increases when oxidative stress, inflammation, or chronic hyperglycemia exists. The role of morbid obesity in AGE levels, and the impact of bariatric surgery on them are unknown. PATIENTS AND METHOD: An observational study with three sex- and age-matched cohorts: 52 patients with obesity, 46 patients undergoing bariatric surgery in the last 5 years, and 46 control subjects...
January 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28439570/epigenomics-of-human-cd8-t-cell-differentiation-and-aging
#4
David M Moskowitz, David W Zhang, Bin Hu, Sabine Le Saux, Rolando E Yanes, Zhongde Ye, Jason D Buenrostro, Cornelia M Weyand, William J Greenleaf, Jörg J Goronzy
The efficacy of the adaptive immune response declines dramatically with age, but the cell-intrinsic mechanisms driving immune aging in humans remain poorly understood. Immune aging is characterized by a loss of self-renewing naïve cells and the accumulation of differentiated but dysfunctional cells within the CD8 T cell compartment. Using ATAC-seq, we inferred the transcription factor binding activities correlated with naive and central and effector memory CD8 T cell states in young adults. Integrating our results with RNA-seq, we identified transcription networks associated with CD8 T cell differentiation, with prominent roles implicated for BATF, ETS1, Eomes, and Sp1...
February 2017: Science Immunology
https://www.readbyqxmd.com/read/28439231/informing-the-structure-of-executive-function-in-children-a-meta-analysis-of-functional-neuroimaging-data
#5
Róisín McKenna, T Rushe, Kate A Woodcock
The structure of executive function (EF) has been the focus of much debate for decades. What is more, the complexity and diversity provided by the developmental period only adds to this contention. The development of executive function plays an integral part in the expression of children's behavioral, cognitive, social, and emotional capabilities. Understanding how these processes are constructed during development allows for effective measurement of EF in this population. This meta-analysis aims to contribute to a better understanding of the structure of executive function in children...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28439047/functional-human-grin2b-promoter-polymorphism-and-variation-of-mental-processing-speed-in-older-adults
#6
Yang Jiang, Ming Kuan Lin, Gregory A Jicha, Xiuhua Ding, Sabrina L McIlwrath, David W Fardo, Lucas S Broster, Frederick A Schmitt, Richard Kryscio, Robert H Lipsky
We investigated the role of a single nucleotide polymorphism rs3764030 (G>A) within the human GRIN2B promoter in mental processing speed in healthy, cognitively intact, older adults. In vitro DNA-binding and reporter gene assays of different allele combinations in transfected cells showed that the A allele was a gain-of-function variant associated with increasing GRIN2B mRNA levels. We tested the hypothesis that individuals with A allele will have better memory performance (i.e. faster reaction times) in older age...
April 24, 2017: Aging
https://www.readbyqxmd.com/read/28438531/altered-gray-and-white-matter-microstructure-in-cushing-s-disease-a-diffusional-kurtosis-imaging-study
#7
Hong Jiang, Na-Ying He, Yu-Hao Sun, Fang-Fang Jian, Liu-Guan Bian, Jian-Kang Shen, Fu-Hua Yan, Si-Jian Pan, Qing-Fang Sun
Exposure to chronic hypercortisolism has multiple adverse effects on brain biology in humans. Cushing's disease (CD) represents a unique and natural human model for examining the effects of hypercortisolism on the brain. This cross-sectional study used Diffusional Kurtosis Imaging (DKI) to investigate the microstructure alterations in both white matter (WM) and gray matter (GM) of CD patients and to determine the relationship of these changes with clinical characteristics. DKI images were obtained from 15 active CD patients...
April 21, 2017: Brain Research
https://www.readbyqxmd.com/read/28438486/pti-125-binds-and-reverses-an-altered-conformation-of-filamin-a-to-reduce-alzheimer-s-disease-pathogenesis
#8
Hoau-Yan Wang, Kuo-Chieh Lee, Zhe Pei, Amber Khan, Kalindi Bakshi, Lindsay H Burns
We show that amyloid-β1-42 (Aβ42) triggers a conformational change in the scaffolding protein filamin A (FLNA) to induce FLNA associations with α7-nicotinic acetylcholine receptor (α7nAChR) and toll-like receptor 4 (TLR4). These aberrant associations respectively enable Aβ42's toxic signaling via α7nAChR to hyperphosphorylate tau protein, and TLR4 activation to release inflammatory cytokines. PTI-125 is a small molecule that preferentially binds altered FLNA and restores its native conformation, restoring receptor and synaptic activities and reducing its α7nAChR/TLR4 associations and downstream pathologies...
March 31, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28438246/does-dual-task-coordination-performance-decline-in-later-life
#9
María V Sebastián, Roberto Mediavilla
BACKGROUND: This cross-sectional study examined whether changes occur in people’s capacity to coordinate two simultaneous tasks (dual-task) when transitioning from adulthood to later life. The central executive, Baddeley’s working memory model component, is responsible for this coordination. Contradictory results have been reported regarding the relationship between ageing and dual-task performance; but these seem to be related to methodological issues that have been addressed in this study...
May 2017: Psicothema
https://www.readbyqxmd.com/read/28438093/tyramide-signal-amplification-permits-immunohistochemical-analyses-of-androgen-receptors-in-the-rat-prefrontal-cortex
#10
Katelyn L Low, Chunqi Ma, Kiran K Soma
Research on neural androgen receptors (ARs) has traditionally focused on brain regions that regulate reproductive and aggressive behaviors, such as the hypothalamus and amygdala. Although many cells in the prefrontal cortex (PFC) also express ARs, the number of ARs per cell appears to be much lower, and thus, AR immunostaining is often hard to detect and quantify in the PFC. Here, we demonstrate that biotin tyramide signal amplification (TSA) dramatically increases AR immunoreactivity in the rat brain, including critical regions of the PFC such as the medial PFC (mPFC) and orbitofrontal cortex (OFC)...
May 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28438076/increased-work-and-social-engagement-is-associated-with-increased-stroke-specific-quality-of-life-in-stroke-survivors-at-3%C3%A2-months-and-12-months-post-stroke-a-longitudinal-study-of-an-australian-stroke-cohort
#11
Tamara Tse, Siti Zubaidah Binte Yusoff, Leonid Churilov, Henry Ma, Stephen Davis, Geoffrey Alan Donnan, Leeanne M Carey
BACKGROUND: There is a relative lack of longitudinal studies investigating stroke-specific outcomes and quality of life (QOL). This study aimed to identify which factors (level of disability, cognitive functioning, depressive symptoms, physical activity, and work and social engagement) were independently associated with each stroke-specific domain of QOL, adjusting for age and gender, at 3 months and 12 months post-stroke in an Australian cohort. METHOD: Survivors of ischemic stroke were recruited from 18 sites of the STroke imAging pRevention and Treatment (START) longitudinal cohort study...
April 24, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/28436833/proactive-control-in-early-and-middle-childhood-an-erp-study
#12
Sarah Elke, Sandra A Wiebe
Children experience important cognitive control improvements in the transition to school. This study examined 4-5-year-olds' (n=17) and 7-8-year-olds' (n=22) ability to proactively deploy cognitive control. Children performed a cued task-switching paradigm presenting them with a cue indicating which attribute, color or shape, they should use to sort the upcoming stimulus. Following both cue and stimulus, we analyzed two event-related potentials: the P2 and P3, positive peaks reflecting sensory and attentional components of cognitive control, respectively...
April 14, 2017: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28436184/delaying-cognitive-and-physical-decline-through-multidomain-interventions-for-residents-with-mild-to-moderate-dementia-in-dementia-care-units-in-taiwan-a-prospective-cohort-study
#13
Chih-Kuang Liang, Ming-Yueh Chou, Liang-Yu Chen, Kuei-Yu Wang, Shih-Yi Lin, Liang-Kung Chen, Yu-Te Lin, Tsung-Yun Liu, Ching-Hui Loh
AIM: To develop experimental multi-domain interventions for older people with mild-to-moderate dementia, and to evaluate the effect of delaying cognitive and physical decline, and improvement or prevention of geriatric syndromes during 1-year follow up. METHODS: Participants aged 65 years and older with mild-to-moderate dementia (clinical dementia rating [CDR] 1 or 2) were grouped as intervention in Jia-Li Veterans Home and usual care model in the community (Memory clinic)...
April 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28435973/acclimatization-to-middle-altitude-hypoxia-protects-against-developmental-and-cognitive-deficits-caused-by-acute-fetal-hypoxia-in-mice
#14
Hui-Lang Liu, Yong-Mei Sun, Chuan-Yu Li, Hai-Chen Niu, Min Su, Jing-Kun Wang
Acute fetal hypoxia (AFH) can elicit postnatal motor deficits and cognitive impairments. To test whether lifelong acclimatization to middle altitude (MA) hypoxia has protective effects on the impairments caused by AFH, ICR mice bred at 1 900 m altitude for 6-7 generations were evaluated under AFH. On gestation day 9 (GD 9), 13 (GD 13) or 17 (GD 17), pregnant mice received a single exposure to acute hypoxia (7% O2, 6 h). Physiological and neurodevelopmental behaviors, motor function (open field), spatial learning and memory (Morris water maze), and anxiety level (elevated plus maze) were examined in the offspring from neonate to adulthood...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28435881/the-memory-remains-understanding-collective-memory-in-the-digital-age
#15
Ruth García-Gavilanes, Anders Mollgaard, Milena Tsvetkova, Taha Yasseri
Recently developed information communication technologies, particularly the Internet, have affected how we, both as individuals and as a society, create, store, and recall information. The Internet also provides us with a great opportunity to study memory using transactional large-scale data in a quantitative framework similar to the practice in natural sciences. We make use of online data by analyzing viewership statistics of Wikipedia articles on aircraft crashes. We study the relation between recent events and past events and particularly focus on understanding memory-triggering patterns...
April 2017: Science Advances
https://www.readbyqxmd.com/read/28435047/histological-and-cognitive-alterations-in-adult-diabetic-rats-following-an-episode-of-juvenile-diabetic-ketoacidosis-evidence-of-permanent-cerebral-injury
#16
Nicole Glaser, Jennifer Sasaki-Russell, Michael Cohen, Christopher Little, Martha O'Donnell, Jeffrey Sall
Evidence suggests that diabetic ketoacidosis (DKA) may cause subtle cognitive alterations in children but the mechanisms are poorly understood. Acute DKA is associated with reactive astrogliosis and microglial activation in a rat model. Whether these inflammatory changes permanently alter brain histology is unknown. We aimed to determine whether DKA results in permanent alterations in brain histology and whether these changes are associated with cognitive deficits in a rat model. We induced diabetes in juvenile rats with streptozotocin at 4 weeks of age...
April 20, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28434949/maternal-immune-activation-during-pregnancy-in-rats-impairs-working-memory-capacity-of-the-offspring
#17
Brendan G Murray, Don A Davies, Joel J Molder, John G Howland
Maternal immune activation during pregnancy is an environmental risk factor for psychiatric illnesses such as schizophrenia in the offspring. Patients with schizophrenia display an array of cognitive symptoms, including impaired working memory capacity. Rodent models have been developed to understand the relationship between maternal immune activation and the cognitive symptoms of schizophrenia. The present experiment was designed to test whether maternal immune activation with the viral mimetic polyinosinic:polycytidylic acid (polyI:C) during pregnancy affects working memory capacity of the offspring...
April 18, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/28433953/the-ability-of-early-serial-developmental-assessment-to-predict-outcome-at-5years-following-neonatal-hypoxic-ischaemic-encephalopathy
#18
Catherine M O'Connor, C Anthony Ryan, Geraldine B Boylan, Deirdre M Murray
BACKGROUND: Neurodevelopmental difficulties in children following hypoxic-ischaemic encephalopathy (HIE) may not emerge until school age. AIMS: To evaluate the value and stability of early serial developmental assessments in predicting long-term outcome. STUDY DESIGN: Prospective study of infants with neonatal HIE and early continuous EEG at birth. SUBJECTS: Term infants with HIE were recruited at birth. Development was measured at 6, 12 and 24months using the Revised Griffiths' Scales (GMDS-R)...
April 20, 2017: Early Human Development
https://www.readbyqxmd.com/read/28433262/primary-motor-cortex-alterations-in-alzheimer-disease-a-study-in-the-3xtg-ad-model
#19
E Orta-Salazar, A I Feria-Velasco, S Díaz-Cintra
INTRODUCTION: In humans and animal models, Alzheimer disease (AD) is characterised by accumulation of amyloid-β peptide (Aβ) and hyperphosphorylated tau protein, neuronal degeneration, and astrocytic gliosis, especially in vulnerable brain regions (hippocampus and cortex). These alterations are associated with cognitive impairment (loss of memory) and non-cognitive impairment (motor impairment). The purpose of this study was to identify cell changes (neurons and glial cells) and aggregation of Aβ and hyperphosphorylated tau protein in the primary motor cortex (M1) in 3xTg-AD mouse models at an intermediate stage of AD...
April 19, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28433238/pulmonary-rehabilitation-referral-and-participation-are-commonly-influenced-by-environment-knowledge-and-beliefs-about-consequences-a-systematic-review-using-the-theoretical-domains-framework
#20
Narelle S Cox, Cristino C Oliveira, Aroub Lahham, Anne E Holland
QUESTION: What are the barriers and enablers of referral, uptake, attendance and completion of pulmonary rehabilitation for people with chronic obstructive pulmonary disease (COPD)? DESIGN: Systematic review of qualitative or quantitative studies reporting data relating to referral, uptake, attendance and/or completion in pulmonary rehabilitation. PARTICIPANTS: People aged >18years with a diagnosis of COPD and/or their healthcare professionals...
April 2017: Journal of Physiotherapy
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