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https://www.readbyqxmd.com/read/28735495/neuroanatomical-and-resting-state-eeg-power-correlates-of-central-hearing-loss-in-older-adults
#1
Nathalie Giroud, Sarah Hirsiger, Raphaela Muri, Andrea Kegel, Norbert Dillier, Martin Meyer
To gain more insight into central hearing loss, we investigated the relationship between cortical thickness and surface area, speech-relevant resting state EEG power, and above-threshold auditory measures in older adults and younger controls. Twenty-three older adults and 13 younger controls were tested with an adaptive auditory test battery to measure not only traditional pure-tone thresholds, but also above individual thresholds of temporal and spectral processing. The participants' speech recognition in noise (SiN) was evaluated, and a T1-weighted MRI image obtained for each participant...
July 22, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28735436/assessing-differences-in-macrofaunal-assemblages-as-a-factor-of-sieve-mesh-size-distance-between-samples-and-time-of-sampling
#2
Lenaïg G Hemery, Kristin K Politano, Sarah K Henkel
With increasing cascading effects of climate change on the marine environment, as well as pollution and anthropogenic utilization of the seafloor, there is increasing interest in tracking changes to benthic communities. Macrofaunal surveys are traditionally conducted as part of pre-incident environmental assessment studies and post-incident monitoring studies when there is a potential impact to the seafloor. These surveys usually characterize the structure and/or spatiotemporal distribution of macrofaunal assemblages collected with sediment cores; however, many different sampling protocols have been used...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28735414/bone-mechanobiology-in-mice-toward-single-cell-in-vivo-mechanomics
#3
Ariane Scheuren, Esther Wehrle, Felicitas Flohr, Ralph Müller
Mechanically driven bone (re)modeling is a multiscale process mediated through complex interactions between multiple cell types and their microenvironments. However, the underlying mechanisms of how cells respond to mechanical signals are still unclear and are at the focus of the field of bone mechanobiology. Traditionally, this complex process has been addressed by reducing the system to single scales and cell types. It is only recently that more integrative approaches have been established to study bone mechanobiology across multiple scales in which mechanical load at the organ level is related to molecular responses at the cellular level...
July 22, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28735389/the-fundamental-role-of-reactive-oxygen-species-in-plant-stress-response
#4
Michael Liebthal, Karl-Josef Dietz
Chemical, physical, and biotic factors continuously vary in the natural environment. Such parameters are considered as stressors if the magnitude of their change exceeds the current acclimation norm of the plant. Activation of genetic programs allows for conditional expansion of the acclimation norm and depends on specific sensing mechanisms, intracellular communication, and regulation. The redox and reactive oxygen species (ROS) network plays a fundamental role in directing the acclimation response. These highly reactive compounds like H2O2 are generated and scavenged under normal conditions and participate in realizing a basal acclimation level...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28735370/gait-and-cognitive-impairments-in-multiple-sclerosis-the-specific-contribution-of-falls-and-fear-of-falling
#5
Alon Kalron, Gilles Allali
Our goal was to identify the specific contribution of fear of falling (FoF) and falls with quantitative gait impairments and cognition capabilities in multiple sclerosis (MS) patients. Patients were separated into four individual subgroups as to the presence of FoF and falls (i.e., fearless/non-fallers, fearless/fallers, FoF/non-fallers and FoF/fallers). The Falls Efficacy Scale International questionnaire was used to assess the level of concern of falling. Participants were defined as "fallers" and "non-fallers" based on their fall history...
July 22, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/28735202/effect-of-wii-fit%C3%A2-exercise-therapy-on-gait-parameters-in-ankle-sprain-patients-a-randomized-controlled-trial
#6
Ilona M Punt, Stéphane Armand, Jean-Luc Ziltener, Lara Allet
Ankle sprains are the most common sport related injuries. An alternative to physical therapy in the treatment of ankle sprains is home based exercise therapy. This study aims to compare the effectiveness of Wii Fit™ exercise therapy in ankle sprain patients on temporal-spatial and kinematic gait parameters with a) conventional therapy and b) a control group not receiving exercise therapy. Ninety patients were randomly assigned to a Wii Fit™, physical therapy or control group. Temporal-spatial and kinematic gait parameters were assessed at baseline, 6 weeks and 6 months follow-up...
June 29, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28735106/color-doppler-signals-of-blood-flow-in-the-corpus-luteum-and-vascular-perfusion-index-for-ovarian-and-uterine-arteries-during-expansion-of-the-allantochorion-in-bos-taurus-heifers
#7
F L V Pinaffi, E R Araujo, L A Silva, O J Ginther
Hemodynamics of the CL and each main uterine artery during expansion of the allantochorion from the ipsilateral side (CL side) to the contralateral side were studied in heifers (n = 8 nonbred, 9 pregnant). Progesterone concentration, vascular perfusion index for each uterine artery (by spectral ultrasonography), extent of blood flow in the CL (percentage of CL tissue with color-Doppler signals of blood flow), and intrauterine location of the expanding allantochorion (by gray-scale ultrasonic imaging) were determined daily from Days 14-60 (Day 0 = ovulation)...
July 12, 2017: Theriogenology
https://www.readbyqxmd.com/read/28735082/aeromonas-caviae-alters-the-cytosolic-and-mitochondrial-creatine-kinase-activities-in-experimentally-infected-silver-catfish-impairment-on-renal-bioenergetics
#8
Matheus D Baldissera, Carine F Souza, Guerino B Júnior, Camila Marina Verdi, Karen L S Moreira, Maria Izabel U M da Rocha, Marcelo L da Veiga, Roberto C V Santos, Bruno S Vizzotto, Bernardo Baldisserotto
Cytosolic and mitochondrial creatine kinases (CK), through the creatine kinase-phosphocreatine (CK/PCr) system, provide a temporal and spatial energy buffer to maintain cellular energy homeostasis. However, the effects of bacterial infections on the kidney remain poorly understood and are limited only to histopathological analyses. Thus, the aim of this study was to investigate the involvement of cytosolic and mitochondrial CK activities in renal energetic homeostasis in silver catfish experimentally infected with Aeromonas caviae...
July 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28735042/improved-selectivity-and-cytotoxic-effects-of-irinotecan-via-liposomal-delivery-a-comparative-study-on-hs68-and-hela-cells
#9
Ana Casadó, Margarita Mora, M Lluïsa Sagristá, Santi Rello-Varona, Pilar Acedo, Juan Carlos Stockert, Magdalena Cañete, Angeles Villanueva
Irinotecan (CPT-11) is an effective chemotherapeutic agent widely used to treat different cancers. Otherwise, the liposomal delivery of anti-tumor agents has been shown to be a promising strategy. The aim of this study has been to analyze the effect of liposomal CPT-11 (CPT-11lip) on two human cell lines (Hs68 and HeLa) to establish the suitability of this CPT-11 nanocarrier. We have demonstrated the highest uptake of CPT-11lip in comparison with that of CPT-11sol, in lactate buffer, and that CPT-11lip was internalized in the cells through an endocytic process whereas CPT-11sol does so by passive diffusion...
July 19, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28735011/assessment-and-elimination-of-the-effects-of-head-movement-on-meg-resting-state-measures-of-oscillatory-brain-activity
#10
Eirini Messaritaki, Loes Koelewijn, Diana C Dima, Gemma M Williams, Gavin Perry, Krish D Singh
Magnetoencephalography (MEG) is increasingly being used to study brain function because of its excellent temporal resolution and its direct association with brain activity at the neuronal level. One possible cause of error in the analysis of MEG data comes from the fact that participants, even MEG-experienced ones, move their head in the MEG system. Head movement can cause source localization errors during the analysis of MEG data, which can result in the appearance of source variability that does not reflect brain activity...
July 19, 2017: NeuroImage
https://www.readbyqxmd.com/read/28734985/safety-of-catheter-ablation-for-atrial-fibrillation-using-fiber-optic-based-contact-force-sensing
#11
Moussa Mansour, Dhanunjaya Lakkireddy, Douglas Packer, John D Day, Srijoy Mahapatra, Kyle Brunner, Vivek Reddy, Andrea Natale
BACKGROUND: While the body of evidence showing the benefit of contact force (CF) sensing catheters in improving AF ablation success rate is growing, real-world safety data of this technology are limited. OBJECTIVE: The aim of this study is to report the complication rate in patients undergoing ablation using one specific CF sensing catheter (TactiCath™Quartz Contact Force Ablation Catheter (Abbott, St Paul, MN)) in a large worldwide database. METHODS: - User-reported adverse event data from January 2014 - December 2015 was reviewed for the ablation catheter...
July 19, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28734975/how-consumers-are-affected-by-product-descriptions-in-online-shopping-event-related-potentials-evidence-of-the-attribute-framing-effect
#12
Jia Jin, Wuke Zhang, Mingliang Chen
Due to the limitations of the human ability to process information, e-consumers' decisions are likely to be influenced by various cognitive biases, such as the attribute framing effect. This effect has been well studied by numerous scholars; however, the associated underlying neural mechanisms with a critical temporal resolution have not been revealed. Thus, this study applies the measurement of event-related potentials (ERPs) to directly examine the role of attribute framing in information processing and decision-making in online shopping...
July 19, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28734899/strategies-to-develop-endogenous-stem-cell-recruiting-bioactive-materials-for-tissue-repair-and-regeneration
#13
Settimio Pacelli, Sayantani Basu, Jonathan Whitlow, Aparna R Chakravarti, Francisca Acosta, Arushi Varshney, Saman Modaresi, Cory Berkland, Arghya Paul
A leading strategy in tissue engineering is the design of biomimetic scaffolds that stimulate the body's repair mechanisms through the recruitment of endogenous stem cells to sites of injury. Approaches that employ the use of chemoattractant gradients to guide tissue regeneration without external cell sources are favored over traditional cell-based therapies that have limited potential for clinical translation. Following this concept, bioactive scaffolds can be engineered to provide a temporally and spatially controlled release of biological cues, with the possibility to mimic the complex signaling patterns of endogenous tissue regeneration...
July 19, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28734871/the-role-of-temporal-contrast-and-blue-light-in-emmetropization
#14
Frances Rucker, Mark Henriksen, Tiffany Yanase, Christopher Taylor
A previous experiment showed that blue light (as a component of white light) protected against low temporal frequency dependent eye growth. This experiment investigated the role of temporal contrast. White leghorn chicks were exposed to white (with blue) or yellow (without blue) LED lighting modulated at either low (0.2 Hz) or high (10 Hz) temporal frequencies. Four cone contrast conditions were used: low (16%), medium (32%), medium-high (60%) and very-high (80%). Chicks were exposed to the lighting condition for 3 days (mean 680 lux)...
July 19, 2017: Vision Research
https://www.readbyqxmd.com/read/28734836/criticality-in-the-brain-a-synthesis-of-neurobiology-models-and-cognition
#15
REVIEW
Luca Cocchi, Leonardo L Gollo, Andrew Zalesky, Michael Breakspear
Cognitive function requires the coordination of neural activity across many scales, from neurons and circuits to large-scale networks. As such, it is unlikely that an explanatory framework focused upon any single scale will yield a comprehensive theory of brain activity and cognitive function. Modelling and analysis methods for neuroscience should aim to accommodate multiscale phenomena. Emerging research now suggests that multi-scale processes in the brain arise from so-called critical phenomena that occur very broadly in the natural world...
July 19, 2017: Progress in Neurobiology
https://www.readbyqxmd.com/read/28734827/multi-omics-analyses-of-starvation-responses-reveal-a-central-role-for-lipoprotein-metabolism-in-acute-starvation-survival-in-c-%C3%A2-elegans
#16
Eva Bang Harvald, Richard R Sprenger, Kathrine Brændgaard Dall, Christer S Ejsing, Ronni Nielsen, Susanne Mandrup, Alejandro Brenes Murillo, Mark Larance, Anton Gartner, Angus I Lamond, Nils J Færgeman
Starvation causes comprehensive metabolic changes, which are still not fully understood. Here, we used quantitative proteomics and RNA sequencing to examine the temporal starvation responses in wild-type Caenorhabditis elegans and animals lacking the transcription factor HLH-30. Our findings show that starvation alters the abundance of hundreds of proteins and mRNAs in a temporal manner, many of which are involved in central metabolic pathways, including lipoprotein metabolism. We demonstrate that premature death of hlh-30 animals under starvation can be prevented by knockdown of either vit-1 or vit-5, encoding two different lipoproteins...
July 12, 2017: Cell Systems
https://www.readbyqxmd.com/read/28734637/-asthma-and-heroin-use
#17
Michel Underner, Jean Perriot, Gérard Peiffer, Nematollah Jaafari
INTRODUCTION: Heroin use can be responsible for many respiratory complications including asthma. OBJECTIVES: Systematic literature review of data on asthma in heroin users. DOCUMENTARY SOURCES: Medline(®), on the period 1980-2017 with the following keywords: keywords: "asthma" or "bronchospasm" and "heroin" or "opiate" or "opiates", limits "title/abstract"; the selected languages were English or French. Among 97 articles, 67 abstracts have given use to a dual reading to select 23 studies...
July 19, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28734570/spatial-and-temporal-variations-of-heavy-metals-in-marine-sediments-from-liaodong-bay-bohai-sea-in-china
#18
Liang Liu, Lijun Wang, Zhengxian Yang, Yingying Hu, Minghui Ma
An integrated analysis has been carried out using surface sediment monitoring data in order to characterize the spatial distributions and temporal trends of heavy metals within ten years from 2004 to 2013 in the entire Liaodong Bay. Hg, Cd and As were predominant contaminants with their median concentrations of 0.04-0.15, 0.01-0.65, and 1.80-30.3mg/kg respectively. Both areas and levels of Cu and Pb contamination were low. Cd contents exhibited an obvious decreasing trend and As presented a similar law during these 10years...
July 19, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28734266/air-quality-and-health-effects-of-biogenic-volatile-organic-compounds-emissions-from-urban-green-spaces-and-the-mitigation-strategies
#19
Yuan Ren, Zelong Qu, Yuanyuan Du, Ronghua Xu, Danping Ma, Guofu Yang, Yan Shi, Xing Fan, Akira Tani, Peipei Guo, Ying Ge, Jie Chang
Biogenic volatile organic compounds (BVOCs) emissions lead to fine particulate matter (PM2.5) and ground-level ozone pollution, and are harmful to human health, especially in urban areas. However, most BVOCs estimations ignored the emissions from urban green spaces, causing inaccuracies in the understanding of regional BVOCs emissions and their environmental and health effects. In this study, we used the latest local vegetation datasets from our field survey and applied an estimation model to analyze the spatial-temporal patterns, air quality impacts, health damage and mitigating strategies of BVOCs emissions in the Greater Beijing Area...
July 19, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28734231/weight-misperception-and-disordered-weight-control-behaviors-among-u-s-high-school-students-with-overweight-and-obesity-associations-and-trends-1999-2013
#20
Vivienne M Hazzard, Samantha L Hahn, Kendrin R Sonneville
OBJECTIVE: To examine prevalence of weight misperception (incongruence between one's perceived weight status and one's actual weight status) and disordered weight control behaviors (DWCBs; unhealthy behaviors aiming to control or modify weight), associations between weight misperception and DWCBs, and temporal trends in prevalence and associations among adolescents with overweight and obesity from 1999 to 2013. METHODS: Self-reported data from eight biennial cycles (1999-2013) of the cross-sectional national Youth Risk Behavior Survey were used in analyses restricted to respondents with overweight/obesity...
July 13, 2017: Eating Behaviors
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