keyword
MENU ▼
Read by QxMD icon Read
search

long-term memory

keyword
https://www.readbyqxmd.com/read/29040897/retirement-and-cognitive-decline-a-longitudinal-analysis-using-share-data
#1
Martina Celidoni, Chiara Dal Bianco, Guglielmo Weber
We show that a new measure of cognitive decline, that can be computed in longitudinal surveys where respondents perform the same recall memory tests over the years, is highly predictive of the onset of dementia. Using SHARE data, we investigate the way retirement affects cognitive decline over time controlling for age, education and other confounding factors. We find that retirement has a long-term detrimental effect on cognition for individuals who retire at the statutory eligibility age. It plays instead a protective role for those who retire on an early retirement scheme...
September 23, 2017: Journal of Health Economics
https://www.readbyqxmd.com/read/29040655/effects-of-1950-mhz-radiofrequency-electromagnetic-fields-on-a%C3%AE-processing-in-human-neuroblastoma-and-mouse-hippocampal-neuronal-cells
#2
Jeongyeon Park, Jong Hwa Kwon, Nam Kim, Kiwon Song
Alzheimer's disease (AD) is a neurodegenerative disease leading to progressive loss of memory and other cognitive functions. One of the well-known pathological markers of AD is the accumulation of amyloid-beta protein (Aβ), and its plaques, in the brain. Recent studies using Tg-5XFAD mice as a model of AD have reported that exposure to radiofrequency electromagnetic fields (RF-EMF) from cellular phones reduced Aβ plaques in the brain and showed beneficial effects on AD. In this study, we examined whether exposure to 1950 MHz RF-EMF affects Aβ processing in neural cells...
October 6, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/29040163/adipose-tissue-is-enriched-for-activated-and-late-differentiated-cd8-t-cells-and-shows-distinct-cd8-receptor-usage-compared-to-blood-in-hiv-infected-persons
#3
John R Koethe, Wyatt McDonnell, Arion Kennedy, Chike O Abana, Mark Pilkinton, Ian Setliff, Ivelin Georgiev, Louise Barnett, Cindy C Hager, Rita Smith, Spyros A Kalams, Alyssa Hasty, Simon Mallal
BACKGROUND: Adverse viral and medication effects on adipose tissue contribute to the development of metabolic disease in HIV-infected persons, but T cells also have a central role modulating local inflammation and adipocyte function. We sought to characterize potentially pro-inflammatory T cell populations in adipose tissue among persons on long-term antiretroviral therapy, and assess whether adipose tissue CD8 T cells represent an expanded, oligoclonal population. METHODS: We recruited 10 HIV-infected, overweight and obese adults on efavirenz, tenofovir, and emtricitabine for >4 years with consistent viral suppression...
October 14, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29036045/long-term-memory-color-investigation-culture-effect-and-experimental-setting-factors
#4
Yuteng Zhu, Ming Ronnier Luo, Sebastian Fischer, Peter Bodrogi, Tran Quoc Khanh
Memory colors generated continuous interest in the color community. Previous studies focused on reflecting color chips and color samples in real scenes or on monitors. The cognitive effect of culture was rarely considered. In this paper, we performed a comprehensive investigation of the long-term memory colors of 26 familiar objects using the asymmetric color matching method among Chinese and German observers on a display. Three experiments were conducted to evaluate the variations introduced by culture, context-based gray image, and initial matching color...
October 1, 2017: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/29035833/vanillic-acid-attenuates-effects-of-transient-bilateral-common-carotid-occlusion-and-reperfusion-in-rats
#5
Seyed Esmaeil Khoshnam, Alireza Sarkaki, Layasadat Khorsandi, William Winlow, Mohammad Badavi, Hadi Fathi Moghaddam, Yaghoob Farbooda
Cerebral hypoperfusion induced by transient bilateral common carotid arteries occlusion (tBCCAO), is associated with deleterious alterations in several physiological parameters of the animals. This study aims to investigate the effects of vanillic acid (VA) on memory impairment, locomotion and exploratory deficits, as well as histological and hippocampal long-term potentiation (LTP) injuries induced by tBCCAO procedure followed by reperfusion (BCCAO/R) in rats. Adult male Wistar rats (250-300g) were divided randomly into four groups: Sham-Operated group "Sham"; Vehicle+BCCAO/R group "BCCAO/R"; Vehicle+ Vanillic acid group "VA"; VA (100mg/kg) +BCCAO/R group "VA +BCCAO/R"...
October 13, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29034500/how-communication-between-nucleosomes-enables-spreading-and-epigenetic-memory-of-histone-modifications
#6
REVIEW
Fabian Erdel
Nucleosomes "talk" to each other about their modification state to form extended domains of modified histones independently of the underlying DNA sequence. At the same time, DNA elements promote modification of nucleosomes in their vicinity. How do these site-specific and histone-based activities act together to regulate spreading of histone modifications along the genome? How do they enable epigenetic memory to preserve cell identity? Many models for the dynamics of repressive histone modifications emphasize the role of strong positive feedback loops, which reinforce histone modifications by recruiting histone modifiers to preexisting modifications...
October 16, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/29034421/hippocampal-deformations-and-entorhinal-cortex-atrophy-as-an-anatomical-signature-of-long-term-cognitive-impairment-from-the-mcao-rat-model-to-the-stroke-patient
#7
C Delattre, C Bournonville, F Auger, R Lopes, C Delmaire, H Henon, A M Mendyk, S Bombois, J C Devedjian, D Leys, C Cordonnier, R Bordet, M Bastide
Stroke patients have an elevated risk of developing long-term cognitive disorders or dementia. The latter is often associated with atrophy of the medial temporal lobe. However, it is not clear whether hippocampal and entorhinal cortex atrophy is the sole predictor of long-term post-stroke dementia. We hypothesized that hippocampal deformation (rather than atrophy) is a predictive marker of long-term post-stroke dementia on a rat model and tested this hypothesis in a prospective cohort of stroke patients.Male Wistar rats were subjected to transient middle cerebral artery occlusion and assessed 6 months later...
October 16, 2017: Translational Stroke Research
https://www.readbyqxmd.com/read/29033789/stress-and-corticosteroids-modulate-muscarinic-long-term-potentiation-mltp-in-the-hippocampus
#8
Efrat Shavit Stein, Ze'Ev Itsekson Hayosh, Andreas Vlachos, Nicola Maggio
Stress influences synaptic plasticity, learning and memory in a steroid hormone receptor dependent manner. Based on these findings it has been proposed that stress could be a major risk factor for the development of cognitive decline and dementia. Interestingly, evidence has been provided that stress also affects muscarinic, i.e., acetylcholine (ACh)-mediated neurotransmission. To learn more about the impact of stress and steroids on synaptic plasticity, in this study, we investigated the effects of stress on muscarinic long term potentiation (mLTP)...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29033335/alpha-band-activity-reveals-spontaneous-representations-of-spatial-position-in-visual-working-memory
#9
Joshua J Foster, Emma M Bsales, Russell J Jaffe, Edward Awh
An emerging view suggests that spatial position is an integral component of working memory (WM), such that non-spatial features are bound to locations regardless of whether space is relevant [1, 2]. For instance, past work has shown that stimulus position is spontaneously remembered when non-spatial features are stored. Item recognition is enhanced when memoranda appear at the same location where they were encoded [3-5], and accessing non-spatial information elicits shifts of spatial attention to the original position of the stimulus [6, 7]...
October 11, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29033017/neurocognitive-and-psychological-outcomes-in-adults-with-dextro-transposition-of-the-great-arteries-corrected-by-the-arterial-switch-operation
#10
Leïla Kasmi, Johanna Calderon, Michèle Montreuil, Nikoletta Geronikola, Virginie Lambert, Emrè Belli, Damien Bonnet, David Kalfa
BACKGROUND: Neurodevelopmental impairments have frequently been described in children and adolescents with dextro-transposition of the great arteries (d-TGA). The arterial switch operation (ASO) to correct d-TGA has been used for more than 30 years, and more than 90% of these patients now reach adulthood. However, very little is known about their long-term functional outcomes. The present study investigated neurocognitive outcomes and the prevalence of psychiatric disorders in adults with d-TGA corrected by ASO...
October 12, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29032162/de-identification-of-medical-records-using-conditional-random-fields-and-long-short-term-memory-networks
#11
Zhipeng Jiang, Chao Zhao, Bin He, Yi Guan, Jingchi Jiang
The CEGS N-GRID 2016 Shared Task 1 in Clinical Natural Language Processing focuses on the de-identification of psychiatric evaluation records. This paper describes two participating systems of our team, based on conditional random fields (CRFs) and long short-term memory networks (LSTMs). A pre-processing module was introduced for sentence detection and tokenization before de-identification. For CRFs, manually extracted rich features were utilized to train the model. For LSTMs, a character-level bi-directional LSTM network was applied to represent tokens and classify tags for each token, following which a decoding layer was stacked to decode the most probable protected health information (PHI) terms...
October 12, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/29032016/neuropsychological-outcomes-following-paediatric-temporal-lobe-surgery-for-epilepsies-evidence-from-a-systematic-review
#12
REVIEW
Alice E Flint, Mitch Waterman, Grace Bowmer, Gayatri Vadlamani, Paul Chumas, Matthew C H J Morrall
OBJECTIVE: The systematic review aimed to assess the neuropsychological outcomes of temporal lobe resections for epilepsy in children. Additional objectives included determining whether earlier age at surgery leads to better neuropsychological outcomes; the relationships between and predictors of these outcomes. METHODS: Using advanced search terms, a systematic review of electronic databases was conducted, comprising MEDLINE, Embase, PsycINFO, Global Health, Web of Science and CINAHL...
September 19, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29031548/green-tea-protects-against-memory-deficits-related-to-maternal-deprivation
#13
Jefferson Menezes, Ben-Hur Neves, Mauren Souza, Pâmela Billig Mello-Carpes
Maternal deprivation (MD) in early life affects the development of the brain, causing cognitive losses in adulthood. Oxidative imbalance may be one of the factors that trigger these deficits. Therapies with antioxidant components, like green tea from Camellia sinensis (GT) has been used to treat or prevent memory deficits in a variety of conditions related to oxidative stress. Here we demonstrate that memory deficits caused by MD can be prevented by GT antioxidant activity in hippocampus. Pregnant female rats were used...
October 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29031402/associations-between-maternal-long-chain-polyunsaturated-fatty-acid-concentrations-and-child-cognition-at-7-years-of-age-the-mefab-birth-cohort
#14
E M Brouwer-Brolsma, O van de Rest, R Godschalk, M P A Zeegers, M Gielen, R H M de Groot
INTRODUCTION: Concentrations of the fish fatty acids EPA and DHA are low among Dutch women of reproductive age. As the human brain incorporates high concentrations of these fatty acids in utero, particularly during third trimester of gestation, these low EPA and DHA concentrations may have adverse consequences for fetal brain development and functioning. METHODS: Analyses were conducted using longitudinal observational data of 292 mother-child pairs participating in the MEFAB cohort...
November 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29030632/long-lasting-antiviral-innate-immune-priming-in-the-lophotrochozoan-pacific-oyster-crassostrea-gigas
#15
Maxime Lafont, Bruno Petton, Agnès Vergnes, Marianna Pauletto, Amélie Segarra, Benjamin Gourbal, Caroline Montagnani
In the last decade, a paradigm shift has emerged in comparative immunology. Invertebrates can no longer be considered to be devoid of specific recognition and immune memory. However, we still lack a comprehensive view of these phenomena and their molecular mechanisms across phyla, especially in terms of duration, specificity, and efficiency in a natural context. In this study, we focused on a Lophotrochozoan/virus interaction, as antiviral priming is mostly overlooked in molluscs. Juvenile Crassostrea gigas oysters experience reoccurring mass mortalities events from Ostreid herpes virus 1 with no existing therapeutic treatment...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29030298/linking-muscarinic-receptor-activation-to-ups-mediated-object-memory-destabilization-implications-for-long-term-memory-modification-and-storage
#16
Mikaela L Stiver, Jacob M Cloke, Natalie Nightingale, Julian Rizos, William S Messer, Boyer D Winters
Consolidated memories can become destabilized during reactivation, resulting in a transient state of instability, a process that has been hypothesized to underlie long-term memory updating. Consistent with this notion, relatively remote memories, which are resistant to standard destabilization procedures, are reliably destabilized when novel information (i.e., the opportunity for memory updating) is present during reactivation. We have also shown that cholinergic muscarinic receptor (mAChR) activation can similarly destabilize consolidated object memories...
October 10, 2017: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29028182/hypothesis-rna-and-dna-viral-sequence-integration-into-the-mammalian-host-genome-supports-long-term-b-cell-and-t-cell-adaptive-immunity
#17
Julia L Hurwitz, Bart G Jones, Emmanuelle Charpentier, David L Woodland
Viral sequence integration into the mammalian genome has long been perceived as a health risk. In some cases, integration translates to chronic viral infection, and in other instances, oncogenic gene mutations occur. However, research also shows that animal cells can benefit from integrated viral sequences (e.g., to support host cell development or to silence foreign invaders). Here we propose that, comparable with the clustered regularly interspaced short palindromic repeats that provide bacteria with adaptive immunity against invasive bacteriophages, animal cells may co-opt integrated viral sequences to support immune memory...
October 13, 2017: Viral Immunology
https://www.readbyqxmd.com/read/29027613/both-decreased-akt-expression-and-mtor-phosphorylation-are-related-to-decreased-neuronal-differentiation-in-the-hippocampal-alveus-of-aged-mice
#18
Bing Chun Yan, Dan Jiang, Jie Wang, Yuanyuan Zhang, Xiaolu Zhu, Pei Xu, Xing Yu, Moo-Ho Won, Pei Qing Su
BACKGROUND: Aging is an inevitable process which results in many changes. These changes are closely related to the hippocampus which is in charge of long-term learning and episodic memory. AIM: This study was to investigate age-related changes of the cell proliferation, neuroblast differentiation and Akt/mTOR signaling in the hippocampal alveus of aged mice. METHODS: In the present study, we compared the differences of neurogenesis in the hippocampal alveus between adult (postnatal month 6) and aged (postnatal month 24) mice using immunohistochemistry and western blot analysis...
October 13, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/29027605/short-term-depression-and-transient-memory-in-sensory-cortex
#19
Grant Gillary, Rüdiger von der Heydt, Ernst Niebur
Persistent neuronal activity is usually studied in the context of short-term memory localized in central cortical areas. Recent studies show that early sensory areas also can have persistent representations of stimuli which emerge quickly (over tens of milliseconds) and decay slowly (over seconds). Traditional positive feedback models cannot explain sensory persistence for at least two reasons: (i) They show attractor dynamics, with transient perturbations resulting in a quasi-permanent change of system state, whereas sensory systems return to the original state after a transient...
October 13, 2017: Journal of Computational Neuroscience
https://www.readbyqxmd.com/read/29024682/history-of-concussion-impacts-electrophysiological-correlates-of-working-memory
#20
Caitlin M Hudac, Cathryn S Cortesa, Patrick S Ledwidge, Dennis L Molfese
Sports-related concussions occur in approximately 21% of college athletes with implications for long-term cognitive impairments in working memory. Working memory involves the capacity to maintain short-term information and integrate with higher-order cognitive processing for planning and behavior execution, critical skills for optimal cognitive and athletic performance. This study quantified working memory impairments in 36 American football college athletes (18-23years old) using event-related potentials (ERPs)...
October 9, 2017: International Journal of Psychophysiology
keyword
keyword
42448
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"