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https://www.readbyqxmd.com/read/28447850/links-between-temporal-acuity-and-multisensory-integration-across-life-span
#1
Ryan A Stevenson, Sarah H Baum, Juliane Krueger, Paul A Newhouse, Mark T Wallace
The temporal relationship between individual pieces of information from the different sensory modalities is one of the stronger cues to integrate such information into a unified perceptual gestalt, conveying numerous perceptual and behavioral advantages. Temporal acuity, however, varies greatly over the life span. It has previously been hypothesized that changes in temporal acuity in both development and healthy aging may thus play a key role in integrative abilities. This study tested the temporal acuity of 138 individuals ranging in age from 5 to 80...
April 27, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28447610/parp3-is-a-promoter-of-chromosomal-rearrangements-and-limits-g4-dna
#2
Tovah A Day, Jacob V Layer, J Patrick Cleary, Srijoy Guha, Kristen E Stevenson, Trevor Tivey, Sunhee Kim, Anna C Schinzel, Francesca Izzo, John Doench, David E Root, William C Hahn, Brendan D Price, David M Weinstock
Chromosomal rearrangements are essential events in the pathogenesis of both malignant and nonmalignant disorders, yet the factors affecting their formation are incompletely understood. Here we develop a zinc-finger nuclease translocation reporter and screen for factors that modulate rearrangements in human cells. We identify UBC9 and RAD50 as suppressors and 53BP1, DDB1 and poly(ADP)ribose polymerase 3 (PARP3) as promoters of chromosomal rearrangements across human cell types. We focus on PARP3 as it is dispensable for murine viability and has druggable catalytic activity...
April 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/28446636/insights-into-the-evolution-of-hydroxyproline-rich-glycoproteins-from-1000-plant-transcriptomes
#3
Kim L Johnson, Andrew M Cassin, Andrew Lonsdale, Gane Ka-Shu Wong, Doug Soltis, Nicholas W Miles, Michael Melkonian, Barbara Melkonian, Michael K Deyholos, James Leebens-Mack, Carl J Rothfels, Dennis W Stevenson, Sean W Graham, Xumin Wang, Shuangxiu Wu, J Chris Pires, Patrick P Edger, Eric J Carpenter, Antony Bacic, Monika Susanne Doblin, Carolyn J Schultz
The carbohydrate-rich cell walls of land plants and algae have been the focus of much interest given the value of cell wall based products to our current and future economies. Hydroxyproline-rich glycoproteins (HRGPs), a major group of wall glycoproteins, play important roles in plant growth and development, yet little is known about how they have evolved in parallel with the polysaccharide components of walls. We investigate the origins and evolution of the HRGP superfamily, which is commonly divided into three major multigene families: the arabinogalactan-proteins (AGPs), extensins (EXTs) and proline-rich proteins (PRPs)...
April 26, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28444239/the-influence-of-social-conditions-across-the-life-course-on-the-human-gut-microbiota-a-pilot-project-with-the-wisconsin-longitudinal-study
#4
Pamela Herd, Nora Cate Schaeffer, Kerryann DiLoreto, Karen Jacques, John Stevenson, Federico Rey, Carol Roan
Objective: To test the feasibility of collecting and integrating data on the gut microbiome into one of the most comprehensive longitudinal studies of aging and health, the Wisconsin Longitudinal Study (WLS). The long-term goal of this integration is to clarify the contribution of social conditions in shaping the composition of the gut microbiota late in life. Research on the microbiome, which is considered to be of parallel importance to human health as the human genome, has been hindered by human studies with nonrandomly selected samples and with limited data on social conditions over the life course...
April 25, 2017: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
https://www.readbyqxmd.com/read/28440855/accuracy-of-current-diagnostic-criteria-for-acute-bacterial-infection-in-older-adults-in-the-emergency-department
#5
Jeffrey M Caterino, Robert Leininger, David M Kline, Lauren T Southerland, Salman Khaliqdina, Christopher W Baugh, Daniel J Pallin, Kurt B Stevenson
OBJECTIVES: To compare the accuracy of the Loeb criteria, emergency department (ED) physicians' diagnoses, and Centers for Disease Control and Prevention (CDC) guidelines for acute bacterial infection in older adults with a criterion standard expert review. DESIGN: Prospective, observational study. SETTING: Urban, tertiary-care ED. PARTICIPANTS: Individuals aged 65 and older in the ED, excluding those who were incarcerated, underwent a trauma, did not speak English, or were unable to consent...
April 25, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28438828/an-assessment-of-currently-available-i-v-push-medication-delivery-systems
#6
John Fanikos, Maureen Burger, Todd Canada, Patricia Ebright, Joshua Fleming, Kathleen A Harder, Julius Cuong Pham, Melinda D Sawyer, James G Stevenson
No abstract text is available yet for this article.
May 1, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28438404/quantitative-ultrasound-and-tibial-dysplasia-in-neurofibromatosis-type-1
#7
David A Stevenson, Heather Hanson, Austin Stevens, John Carey, David Viskochil, Xiaoming Sheng, Karen Wheeler, Hillarie Slater
Neurofibromatosis type 1 (NF1) is a common autosomal dominant disorder associated with unilateral anterolateral bowing with subsequent fracture and nonunion. In infancy, physiologic bowing of the lower leg can be confused with pathologic tibial dysplasia in NF1. Little is known about the bone physiology of the tibiae prior to fracture or predictors of fracture. The aim of this study was to characterize bone quality of bowed tibiae prior to fracture in NF1 using quantitative ultrasound (QUS). Bone quality was assessed on both tibiae (the non-bowed and bowed tibiae) using QUS to measure speed of sound (SOS) at the mid-shaft in 23 individuals with NF1...
April 21, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28436730/a-new-approach-to-managing-work-related-road-traffic-injury-the-development-of-a-health-investment-framework
#8
Amanda Warmerdam, Sharon Newnam, Dianne Sheppard, Mark Griffin, Mark Stevenson
Objective Statistics indicate that employees commuting or travelling as part of their work are over-represented in workplace injury and death. Despite this, many organisations are unaware of the factors within their organisations that are likely to influence potential reductions in work-related road traffic injury. Methods This paper presents a multi-level conceptual framework that identifies health investment as the central feature in reducing work-related road traffic injury. Within this framework, we explore factors operating at the individual-driver, workgroup-supervisor and organisational-senior management levels that create a mutually reinforcing system of safety...
February 7, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28436162/the-path-forward-2015-international-children-s-tumor-foundation-conference-on-neurofibromatosis-type-1-type-2-and-schwannomatosis
#9
Jaishri O Blakeley, Annette Bakker, Anne Barker, Wade Clapp, Rosalie Ferner, Michael J Fisher, Marco Giovannini, David H Gutmann, Matthias A Karajannis, Joseph L Kissil, Eric Legius, Alison C Lloyd, Roger J Packer, Vijaya Ramesh, Vincent M Riccardi, David A Stevenson, Nicole J Ullrich, Meena Upadhyaya, Anat Stemmer-Rachamimov
The Annual Children's Tumor Foundation International Neurofibromatosis Meeting is the premier venue for connecting discovery, translational and clinical scientists who are focused on neurofibromatosis types 1 and 2 (NF1 and NF2) and schwannomatosis (SWN). The meeting also features rare tumors such as glioma, meningioma, sarcoma, and neuroblastoma that occur both within these syndromes and spontaneously; associated with somatic mutations in NF1, NF2, and SWN. The meeting addresses both state of the field for current clinical care as well as emerging preclinical models fueling discovery of new therapeutic targets and discovery science initiatives investigating mechanisms of tumorigenesis...
April 24, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28433079/utilization-of-whole-exome-next-generation-sequencing-variant-read-frequency-for-detection-of-lesion-specific-somatic-loss-of-heterozygosity-in-a-neurofibromatosis-type-1-cohort-with-tibial-pseudarthrosis
#10
Rebecca L Margraf, Chad VanSant-Webb, David Sant, John Carey, Heather Hanson, Jacques D'Astous, Dave Viskochil, David A Stevenson, Rong Mao
A subset of neurofibromatosis type 1 patients develop tibial dysplasia, which can lead to pseudarthrosis. The tissue from the tibial pseudarthrosis region commonly has a somatic second hit in NF1: single-nucleotide variants, small deletions, or loss of heterozygosity (LOH). We used exome next-generation sequencing (NGS) variant frequency data (allelic imbalance analysis) to detect somatic LOH in pseudarthrosis tissue from three individuals with clinically and diagnostically confirmed neurofibromatosis type 1, and verified the results with microarray...
May 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28432680/longitudinal-physical-activity-and-sedentary-behaviour-in-preschool-aged-children-with-cerebral-palsy-across-all-functional-levels
#11
Piyapa Keawutan, Kristie L Bell, Stina Oftedal, Robert S Ware, Richard D Stevenson, Peter S W Davies, Roslyn N Boyd
AIM: To investigate longitudinal changes of habitual physical activity (HPA) and sedentary time in children with cerebral palsy (CP) aged 1 year 6 months to 5 years across all functional abilities. METHOD: At study entry, 95 children (62 males, 33 females) were classified using the Gross Motor Function Classification System (GMFCS) at levels I (50), II (9), III (16), IV (6), and V (14). Physical activity was recorded on a total of 159 occasions at four possible time points: 1 year 6 months to 2 years; 2 years 6 months to 3 years; 4 years; and 5 years using ActiGraph for 3 days...
April 22, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28432378/advances-in-anti-viral-immune-defence-revealing-the-importance-of-the-ifn-jak-stat-pathway
#12
REVIEW
Nicola Raftery, Nigel J Stevenson
Interferon-alpha (IFN-α) is a potent anti-viral cytokine, critical to the host immune response against viruses. IFN-α is first produced upon viral detection by pathogen recognition receptors. Following its expression, IFN-α embarks upon a complex downstream signalling cascade called the JAK/STAT pathway. This signalling pathway results in the expression of hundreds of effector genes known as interferon stimulated genes (ISGs). These genes are the basis for an elaborate effector mechanism and ultimately, the clearance of viral infection...
April 21, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28431822/detecting-bursts-in-the-eeg-of-very-and-extremely-premature-infants-using-a-multi-feature-approach
#13
John M O'Toole, Geraldine B Boylan, Rhodri O Lloyd, Robert M Goulding, Sampsa Vanhatalo, Nathan J Stevenson
AIM: To develop a method that segments preterm EEG into bursts and inter-bursts by extracting and combining multiple EEG features. METHODS: Two EEG experts annotated bursts in individual EEG channels for 36 preterm infants with gestational age < 30 weeks. The feature set included spectral, amplitude, and frequency-weighted energy features. Using a consensus annotation, feature selection removed redundant features and a support vector machine combined features...
April 18, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28431002/inappropriate-sinus-tachycardia-in-a-heart-transplant-successfully-treated-with-ivabradine
#14
Nishaki Mehta, Aneesh Bapat, Usha Tedrow, William Gregory Stevenson, Bruce Koplan
No abstract text is available yet for this article.
April 18, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28425560/impact-of-simulated-three-dimensional-perception-on-precision-of-depth-judgements-technical-performance-and-perceived-workload-in-laparoscopy
#15
S Sakata, P M Grove, A Hill, M O Watson, A R L Stevenson
BACKGROUND: This study compared precision of depth judgements, technical performance and workload using two-dimensional (2D) and three-dimensional (3D) laparoscopic displays across different viewing distances. It also compared the accuracy of 3D displays with natural viewing, along with the relationship between stereoacuity and 3D laparoscopic performance. METHODS: A counterbalanced within-subjects design with random assignment to testing sequences was used. The system could display 2D or 3D images with the same set-up...
April 20, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28424280/the-major-envelope-glycoprotein-of-murid-herpesvirus-4-promotes-sexual-transmission
#16
Caroline Zeippen, Justine Javaux, Xue Xiao, Marina Ledecq, Jan Mast, Frédéric Farnir, Alain Vanderplasschen, Philip Stevenson, Laurent Gillet
Gammaherpesviruses are important human and animal pathogens. Infection control has proved difficult because the key process of transmission is ill-understood. Murid herpesvirus-4 (MuHV-4), a gammaherpesvirus of mice, transmits sexually. We show that this depends on the major virion envelope glycoprotein, gp150. Gp150 is redundant for host entry and, in vitro, it regulates rather than promotes cell binding. We show that gp150-deficient MuHV-4 reaches and replicates normally in the female genital tract after nasal infection, but is poorly released from vaginal epithelial cells and fails to pass from the female to the male genital tract during sexual contact...
April 19, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28420716/a-men1-pancreatic-neuroendocrine-tumour-mouse-model-under-temporal-control
#17
Kate E Lines, Roeland P Vas Nunes, Morten Frost, Christopher J Yates, Mark Stevenson, Rajesh Thakker
Multiple endocrine neoplasia type 1 (MEN1) is an autosomal dominant disorder characterised by occurrence of parathyroid tumours, and neuroendocrine tumours (NETs) of the pancreatic islets and anterior pituitary. The MEN1 gene, encoding menin, is a tumour suppressor, but its precise role in initiating in vivo tumourigenesis remains to be elucidated. The availability of a temporally controlled conditional MEN1 mouse model would greatly facilitate the study of such early tumourigenic events, and overcome the limitations of other MEN1 knockout models, in which menin is lost from conception, or tumour development occurs asynchronously...
April 18, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28420399/distinct-parasite-populations-infect-individuals-identified-through-passive-and-active-case-detection-in-a-region-of-declining-malaria-transmission-in-southern-zambia
#18
Kelly M Searle, Ben Katowa, Tamaki Kobayashi, Mwiche N S Siame, Sungano Mharakurwa, Giovanna Carpi, Douglas E Norris, Jennifer C Stevenson, Philip E Thuma, William J Moss
BACKGROUND: Substantial reductions in the burden of malaria have been documented in parts of sub-Saharan Africa, with elimination strategies and goals being formulated in some regions. Within this context, understanding the epidemiology of low-level malaria transmission is crucial to achieving and sustaining elimination. A 24 single-nucleotide-polymorphism Plasmodium falciparum molecular barcode was used to characterize parasite populations from infected individuals identified through passive and active case detection in an area approaching malaria elimination in southern Zambia...
April 19, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28418056/unprecedented-thermal-condensation-of-tetracyanocyclopropanes-to-triazaphenalenes-a-facile-route-for-the-design-of-novel-materials-for-electronic-applications
#19
Iliya E Kuznetsov, Diana K Susarova, Lyubov A Frolova, Alexander S Peregudov, Alexander F Shestakov, Sergey I Troyanov, Keith J Stevenson, Pavel A Troshin
We report an unusual thermal condensation of readily available tetracyanocyclopropanes to tetracyanosubstituted triazaphenalenes, which revealed interesting optoelectronic properties such as strongly pronounced solvatochromism and bright photoluminescence. Optical memory elements and organic light emitting diodes with a deep red electroluminescence were designed using triazaphenalenes, thus highlighting the potential of these compounds as materials for electronic applications.
April 18, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28416264/inequalities-in-abdominal-aortic-aneurysm-screening-in-england-effects-of-social-deprivation-and-ethnicity
#20
J Jacomelli, L Summers, A Stevenson, T Lees, J J Earnshaw
OBJECTIVE: Population screening for abdominal aortic aneurysm (AAA) in men is currently ongoing in several countries. The aim was to examine the effects of deprivation and ethnicity on uptake of screening for abdominal aortic aneurysm (AAA) and prevalence of AAA. METHODS: This was a review of outcomes from a population screening programme using data collected contemporaneously on a bespoke national database. Men aged 65 in two annual cohorts (2013/14 and 2014/15) were invited for AAA screening...
April 14, 2017: European Journal of Vascular and Endovascular Surgery
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