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https://www.readbyqxmd.com/read/28427896/toll-like-receptor-2-an-important-immunomodulatory-molecule-during-helicobacter-pylori-infection
#1
REVIEW
Maryam Nemati, Tiziana Larussa, Hossein Khorramdelazad, Merat Mahmoodi, Abdollah Jafarzadeh
Toll like receptors (TLRs) are an essential subset of pathogen recognition receptors (PRRs) which identify the microbial components and contribute in the regulation of innate and adaptive immune responses against the infectious agents. The TLRs, especially TLR2, TLR4, TLR5 and TLR9, participate in the induction of immune response against H. pylori. TLR2 is expressed on a number of immune and non-immune cells and recognizes a vast broad of microbial components due to its potential to form heterodimers with other TLRs, including TLR1, TLR6 and TLR10...
April 17, 2017: Life Sciences
https://www.readbyqxmd.com/read/28426640/announcement-sleep-awareness-week-april-23-29-2017
#2
(no author information available yet)
Sleep Awareness Week, the National Sleep Foundation's annual campaign to educate the public about the importance of sleep in health and safety, will be observed April 23-29, 2017. The amount of sleep a person needs changes with age. Adults need ≥7 hours each night to promote optimal health and well-being (1); children and adolescents require even more sleep. Sleep needs decrease from 12-16 hours of sleep per 24 hours (including naps) for infants aged 4-12 months to 8-10 hours of sleep for teenagers aged 13-18 years (2)...
April 21, 2017: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/28425328/the-use-of-a-smartwatch-as-a-prompting-device-for-people-with-acquired-brain-injury-a-single-case-experimental-design-study
#3
Matthew Jamieson, Mattia Monastra, Graeme Gillies, Rumen Manolov, Breda Cullen, Marilyn McGee-Lennon, Stephen Brewster, Jonathan Evans
Prompting-based memory compensation is a potential application for smartwatches. This study investigated the usability and efficacy of a Moto360 smartwatch as a memory aid. Four community dwelling adults with memory difficulties following acquired brain injury (ABI) were included in an A-B-A single case experimental design study. Performance of everyday memory tasks was tested over six weeks with the smartwatch and software provided during weeks three and four. Participants were asked to use their usual memory aids and strategies during the control phases (weeks 1-2, 5-6)...
April 20, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28424928/metal-metal-bonding-in-1st-2nd-and-3rd-row-transition-metal-complexes-a-topological-analysis
#4
Benjamin Schweitzer, Chantal Daniel, Christophe Gourlaouen
A topological analysis based on density functional electronic and spin densities of the bonding characteristics in a series of Fe, Ru, Os, Tc and Rh dimers and trimers bridged, respectively, by μ-1,8-naphthyridine (nap) and μ-2,2'-dipyridylamine (dpa) is presented. By this simple qualitative analysis, we were able to determine the electronic ground state and correlated bonding order for a number of complexes potentially involved in extended metal atom chains (EMAC). Furthermore, we showed in the Ru dimer that it was possible to control the spin state simply by changing the bonded counter-anion...
May 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28422269/wake-and-light-therapy-for-moderate-to-severe-depression-a-randomized-controlled-trial
#5
M Kragh, K Martiny, P Videbech, D N Møller, C S Wihlborg, T Lindhardt, E R Larsen
OBJECTIVE: To examine the efficacy of using wake and light therapy as a supplement to standard treatment of hospitalized patients with depression. METHOD: In this randomized, controlled study, 64 patients with moderate-to-severe depression were allocated to standard treatment or to the intervention, which additionally consisted of three wake therapy sessions in one week, 30-min daily light treatment and sleep time stabilization over the entire nine-week study period...
April 19, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28416429/-life-threatening-sleepwalking-elpenor-s-syndrome-in-a-10-year-old-child
#6
M-A Madigand-Tordjman, P-J Egler, F Bertran, M Jokic, F Guénolé
Though benign in the majority of cases, sleepwalking sometimes causes injuries due, among other causes, to falls. Such accidents can be life-threatening - a situation that has been termed Elpenor syndrome (in reference to an accident experienced by a character in Homer's epic The Odyssey) - in particular when entailing defenestration. This syndrome has been described in adults and adolescents; we report here a case in a child. OBSERVATION: This 10-year-old girl was admitted at night to our hospital after a 3-m fall at home...
April 14, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28404506/associations-of-24-hour-sleep-duration-and-ct-derived-measurements-of-muscle-and-bone-the-ages-reykjavik-study
#7
Elisa A Marques, Pedro Figueiredo, Vilmundur Gudnason, Thomas Lang, Gunnar Sigurdsson, Sigurdur Sigurdsson, Thor Aspelund, Kristin Siggeirsdottir, Lenore Launer, Gudny Eiriksdottir, Tamara B Harris
BACKGROUND: Although the importance of sleep on preservation of several physiological functions is well known, the relationship with the two interconnected tissues - muscle and bone is less understood. OBJECTIVES: This study aimed to examine the association of 24-hour sleep duration with mid-thigh muscle composition and proximal femur volumetric bone mineral density (vBMD). METHODS: 2438 men and 3326 women aged 66 to 96years, residents in the Reykjavik area, were included in this cross-sectional study...
April 9, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28402849/uroplakin-3a-cells-are-a-distinctive-population-of-epithelial-progenitors-that-contribute-to-airway-maintenance-and-post-injury-repair
#8
Arjun Guha, Aditya Deshpande, Aradhya Jain, Paola Sebastiani, Wellington V Cardoso
There is evidence that certain club cells (CCs) in the murine airways associated with neuroepithelial bodies (NEBs) and terminal bronchioles are resistant to the xenobiotic naphthalene (Nap) and repopulate the airways after Nap injury. The identity and significance of these progenitors (variant CCs, v-CCs) have remained elusive. A recent screen for CC markers identified rare Uroplakin3a (Upk3a)-expressing cells (U-CCs) with a v-CC-like distribution. Here, we employ lineage analysis in the uninjured and chemically injured lungs to investigate the role of U-CCs as epithelial progenitors...
April 11, 2017: Cell Reports
https://www.readbyqxmd.com/read/28389851/the-conditional-power-of-randomization-tests-for-single-case-effect-sizes-in-designs-with-randomized-treatment-order-a-monte-carlo-simulation-study
#9
Bart Michiels, Mieke Heyvaert, Patrick Onghena
The conditional power (CP) of the randomization test (RT) was investigated in a simulation study in which three different single-case effect size (ES) measures were used as the test statistics: the mean difference (MD), the percentage of nonoverlapping data (PND), and the nonoverlap of all pairs (NAP). Furthermore, we studied the effect of the experimental design on the RT's CP for three different single-case designs with rapid treatment alternation: the completely randomized design (CRD), the randomized block design (RBD), and the restricted randomized alternation design (RRAD)...
April 7, 2017: Behavior Research Methods
https://www.readbyqxmd.com/read/28385173/novel-augmentation-strategies-in-major-depression
#10
Klaus Martiny
Hypothesis The hypotheses of all the four included studies share the common idea that it is possible to augment the effect of antidepressant drug treatment by applying different interventions and with each intervention attain a clinically meaningful better effect compared to a control condition, and with minor side effects, thus improving the short- and medium-term outcome in major depression. Procedures Study design The basic study design has been the double blind randomised controlled trial (RCT). In the light therapy study, all patients were treated with sertraline for the whole of the study duration...
April 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28380704/poor-sleep-and-risk-of-falls-in-community-dwelling-older-adults
#11
Yaena Min, Patricia W Slattum
Concerns about sleep problems and falls in older adults are significant. This article reviews the association between sleep problems and falls in community-dwelling adults aged 65 years or older. Multiple databases were searched from inception until 2015 using sleep, sleep disorders, and falls as keywords, limiting to studies published in English in peer-reviewed journals. After screening and assessing for eligibility, 18 articles were selected based on the inclusion and exclusion criteria. Findings of an association between sleep problems and risk of falls are conflicting, but some specific sleep problems such as extremely short sleep duration, daytime sleepiness and naps appear to be significantly related to falls in older adults...
December 1, 2016: Journal of Applied Gerontology: the Official Journal of the Southern Gerontological Society
https://www.readbyqxmd.com/read/28366332/a-review-of-short-naps-and-sleep-inertia-do-naps-of-30%C3%A2-min-or-less-really-avoid-sleep-inertia-and-slow-wave-sleep
#12
REVIEW
Cassie J Hilditch, Jillian Dorrian, Siobhan Banks
OBJECTIVES: Napping is a widely used countermeasure to sleepiness and impaired performance caused by sleep loss and circadian pressure. Sleep inertia, the period of grogginess and impaired performance experienced after waking, is a potential side effect of napping. Many industry publications recommend naps of 30 min or less to avoid this side effect. However, the evidence to support this advice is yet to be thoroughly reviewed. METHODS: Electronic databases were searched, and defined criteria were applied to select articles for review...
April 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28366330/cytokine-polymorphisms-are-associated-with-daytime-napping-in-adults-living-with-hiv
#13
Eeeseung Byun, Caryl L Gay, Carmen J Portillo, Clive R Pullinger, Bradley E Aouizerat, Kathryn A Lee
OBJECTIVE/BACKGROUND: Daytime napping longer than one hour has been associated with an increased risk for all-cause mortality. Associations between cytokine polymorphisms and daytime napping in chronic illnesses such as HIV, however, have not been well described. The purpose of this study was to examine cytokine polymorphisms associated with long daytime napping in adults living with HIV. METHODS: A cross-sectional analysis was conducted using a convenience sample of 257 adults living with HIV...
April 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28364507/neurobehavioral-impact-of-successive-cycles-of-sleep-restriction-with-and-without-naps-in-adolescents
#14
June C Lo, Su Mei Lee, Lydia M Teo, Julian Lim, Joshua J Gooley, Michael W L Chee
Study Objectives: To characterize adolescents' neurobehavioral changes during two cycles of restricted and recovery sleep and to examine the effectiveness of afternoon naps in ameliorating neurobehavioral deficits associated with multiple nights of sleep restriction. Methods: Fifty-seven healthy adolescents (aged 15-19 years; 31 males) participated in a parallel group study. They underwent two cycles of sleep restriction (5-hr time in bed [TIB] for five and three nights in the first and the second cycles, respectively; 01:00-06:00) and recovery (9-hr TIB for two nights per cycle; 23:00-08:00) intended to simulate the weekday sleep loss and weekend attempt to "catch up" on sleep...
February 1, 2017: Sleep
https://www.readbyqxmd.com/read/28364418/the-benefit-of-directed-forgetting-persists-after-a-daytime-nap-the-role-of-spindles-and-rapid-eye-movement-sleep-in-the-consolidation-of-relevant-memories
#15
Borbála Blaskovich, Ágnes Szollosi, Ferenc Gombos, Mihály Racsmány, Péter Simor
Study Objectives: We aimed to investigate the effect of directed forgetting instruction on memory retention after a 2-hour delay involving a daytime nap or an equivalent amount of time spent awake. We examined the associations between sleep-specific oscillations and the retention of relevant and irrelevant study materials. Methods: We applied a list-method directed forgetting paradigm manipulating the perceived relevance of previously encoded lists of words. Participants were randomly assigned to either a nap or an awake group, and to a remember or a forget subgroup...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28364415/using-oscillating-sounds-to-manipulate-sleep-spindles
#16
James W Antony, Ken A Paller
Introduction: EEG oscillations known as sleep spindles have been linked with various aspects of cognition, but the specific functions they signal remain controversial. Two types of EEG sleep spindles have been distinguished: slow spindles at 11-13.5 Hz and fast spindles at 13.5-16 Hz. Slow spindles exhibit a frontal scalp topography, whereas fast spindles exhibit a posterior scalp topography and have been preferentially linked with memory consolidation during sleep. To advance understanding beyond that provided from correlative studies of spindles, we aimed to develop a new method to systematically manipulate spindles...
March 1, 2017: Sleep
https://www.readbyqxmd.com/read/28361187/polycyclic-aromatic-hydrocarbons-pahs-in-exposed-lawn-soils-from-28-urban-parks-in-the-megacity-guangzhou-occurrence-sources-and-human-health-implications
#17
Chang-Liang Ke, Yang-Guang Gu, Qi Liu
Polycyclic aromatic hydrocarbons (PAHs) in urban soils may pose a serious threat to human health via oral ingestion, dermal absorption, and particulate inhalation, especially in public parks and playgrounds, with children and senior citizens showing the highest susceptibility. Several studies have been undertaken identifying PAHs in urban soils, but no studies to date have assessed PAHs in urban parks, in particular in exposed-lawn soils. In recent decades, unprecedented rates of urbanization and industrialization in China have resulted in significant levels of urban environmental pollution...
March 30, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28356608/biophysical-properties-of-subthreshold-resonance-oscillations-and-subthreshold-membrane-oscillations-in-neurons
#18
Babak V-Ghaffari, M Kouhnavard, T Kitajima
Subthreshold-level activities in neurons play a crucial role in neuronal oscillations. These small-amplitude oscillations have been suggested to be involved in synaptic plasticity and in determining the frequency of network oscillations. Subthreshold membrane oscillations (STOs) and subthreshold resonance oscillations (SROs) are the main constituents of subthreshold-level activities in neurons. In this study, a general theoretical framework for analyzing the mechanisms underlying STOs and SROs in neurons is presented...
December 2016: Journal of Biological Systems
https://www.readbyqxmd.com/read/28346153/national-sleep-foundation-s-sleep-quality-recommendations-first-report
#19
Maurice Ohayon, Emerson M Wickwire, Max Hirshkowitz, Steven M Albert, Alon Avidan, Frank J Daly, Yves Dauvilliers, Raffaele Ferri, Constance Fung, David Gozal, Nancy Hazen, Andrew Krystal, Kenneth Lichstein, Monica Mallampalli, Giuseppe Plazzi, Robert Rawding, Frank A Scheer, Virend Somers, Michael V Vitiello
OBJECTIVES: To provide evidence-based recommendations and guidance to the public regarding indicators of good sleep quality across the life-span. METHODS: The National Sleep Foundation assembled a panel of experts from the sleep community and representatives appointed by stakeholder organizations (Sleep Quality Consensus Panel). A systematic literature review identified 277 studies meeting inclusion criteria. Abstracts and full-text articles were provided to the panelists for review and discussion...
February 2017: Sleep Health
https://www.readbyqxmd.com/read/28340050/naps-enhance-executive-attention-in-preschool-aged-children
#20
Amanda Cremone, Jennifer M McDermott, Rebecca M C Spencer
Executive attention is impaired following sleep loss in school-aged children, adolescents, and adults. Whether naps improve attention relative to nap deprivation in preschool-aged children is unknown. The aim of this study was to compare executive attention in preschool children following a nap and an interval of wake.  Sixty-nine children, 35-70 months of age, completed a Flanker task to assess executive attention following a nap and an equivalent interval of wake.  Overall, accuracy was greater after the nap compared with the wake interval...
March 13, 2017: Journal of Pediatric Psychology
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