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https://www.readbyqxmd.com/read/27919661/a-functional-near-infrared-spectroscopy-study-of-the-effects-of-configural-properties-on-sustained-attention
#1
Neil R de Joux, Kyle M Wilson, Paul N Russell, Kristin M Finkbeiner, William S Helton
Forty-five participants performed a vigilance task during which they were required to respond to a critical signal at a local feature level, while the global display was altered between groups (either a circle, a circle broken apart and reversed, or a reconnected figure). The shape in two of the groups formed a configurative whole (the circle and reconnected conditions), while the remaining shape had no complete global element (broken circle). Performance matched the results found in the previous experiments using this stimulus set, where a configural superiority effect was found to influence accuracy over time...
December 2, 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27917253/a-modular-microfluidic-bioreactor-with-improved-throughput-for-evaluation-of-polarized-renal-epithelial-cells
#2
Paul Brakeman, Simeng Miao, Jin Cheng, Chao-Zong Lee, Shuvo Roy, William H Fissell, Nicholas Ferrell
Most current microfluidic cell culture systems are integrated single use devices. This can limit throughput and experimental design options, particularly for epithelial cells, which require significant time in culture to obtain a fully differentiated phenotype. In addition, epithelial cells require a porous growth substrate in order to fully polarize their distinct apical and basolateral membranes. We have developed a modular microfluidic system using commercially available porous culture inserts to evaluate polarized epithelial cells under physiologically relevant fluid flow conditions...
November 2016: Biomicrofluidics
https://www.readbyqxmd.com/read/27915190/gunshot-residue-and-brakepads-compositional-and-morphological-considerations-for-forensic-casework
#3
William Tucker, Nick Lucas, Kelsey E Seyfang, K Paul Kirkbride, Rachel S Popelka-Filcoff
Previous research has raised the possibility that automotive brake pads can produce particles that are both compositionally and morphologically similar to gunshot residue (GSR). These studies, published in the early 2000s, coincided with the reduction or removal of unnecessary sources of lead from the automotive industry. The question therefore arises whether modern brake pads might still be a relevant source of 'GSR-like' particles. In the present study, a total of 75 brake pads taken from a range of cars currently on the road in Adelaide, South Australia, were collected from service centres...
November 23, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27912982/should-recommendations-about-starting-inhaled-corticosteroid-treatment-for-mild-asthma-be-based-on-symptom-frequency-a-post-hoc-efficacy-analysis-of-the-start-study
#4
Helen K Reddel, William W Busse, Søren Pedersen, Wan C Tan, Yu-Zhi Chen, Carin Jorup, Dan Lythgoe, Paul M O'Byrne
BACKGROUND: Low-dose inhaled corticosteroids (ICS) are highly effective for reducing asthma exacerbations and mortality. Conventionally, ICS treatment is recommended for patients with symptoms on more than 2 days per week, but this criterion has scant evidence. We aimed to assess the validity of the previous symptom-based cutoff for starting ICS by establishing whether there was a differential response to budesonide versus placebo for severe asthma exacerbations, lung function, and asthma symptom control across subgroups identified by baseline asthma symptom frequency...
November 29, 2016: Lancet
https://www.readbyqxmd.com/read/27911953/correction-environmental-nontuberculous-mycobacteria-in-the-hawaiian-islands
#5
Jennifer R Honda, Nabeeh A Hasan, Rebecca M Davidson, Myra D Williams, L Elaine Epperson, Paul R Reynolds, Terry Smith, Elena Iakhiaeva, Matthew J Bankowski, Richard J Wallace, Edward D Chan, Joseph O Falkinham, Michael Strong
[This corrects the article DOI: 10.1371/journal.pntd.0005068.].
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27911443/transient-mitochondrial-dna-double-strand-breaks-in-mice-cause-accelerated-aging-phenotypes-in-a-ros-dependent-but-p53-p21-independent-manner
#6
Milena Pinto, Alicia M Pickrell, Xiao Wang, Sandra R Bacman, Aixin Yu, Aline Hida, Lloye M Dillon, Paul D Morton, Thomas R Malek, Siôn L Williams, Carlos T Moraes
We observed that the transient induction of mtDNA double strand breaks (DSBs) in cultured cells led to activation of cell cycle arrest proteins (p21/p53 pathway) and decreased cell growth, mediated through reactive oxygen species (ROS). To investigate this process in vivo we developed a mouse model where we could transiently induce mtDNA DSBs ubiquitously. This transient mtDNA damage in mice caused an accelerated aging phenotype, preferentially affecting proliferating tissues. One of the earliest phenotypes was accelerated thymus shrinkage by apoptosis and differentiation into adipose tissue, mimicking age-related thymic involution...
December 2, 2016: Cell Death and Differentiation
https://www.readbyqxmd.com/read/27911318/the-correlation-between-inflammatory-biomarkers-and-polygenic-risk-score-in%C3%A2-alzheimer-s-disease
#7
Angharad R Morgan, Samuel Touchard, Caroline O'Hagan, Rebecca Sims, Elisa Majounie, Valentina Escott-Price, Lesley Jones, Julie Williams, B Paul Morgan
Plasma biomarkers to aid the early diagnosis of Alzheimer's disease (AD) or to monitor disease progression have long been sought and continue to be widely studied. Biomarkers that correlate with AD polygenic risk score, a measure of the polygenic architecture of the disease and highly predictive of AD status, would be excellent candidates. Therefore, we undertook a preliminary study to assess the association of plasma inflammatory biomarkers with an overall AD polygenic risk score as well as with an inflammation-specific AD polygenic risk score in a sample set of 93 AD cases...
November 26, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27908917/erratum-impact-of-perturbed-pancreatic-%C3%AE-cell-cholesterol-homeostasis-on-adipose-tissue-and-skeletal-muscle-metabolism-diabetes-2016-65-3610-3620
#8
Blake J Cochran, Liming Hou, Anil Paul Chirackal Manavalan, Benjamin M Moore, Fatiha Tabet, Afroza Sultana, Luisa Cuesta Torres, Shudi Tang, Sudichhya Shrestha, Praween Senanayake, Mili Patel, William J Ryder, Andre Bongers, Marie Maraninchi, Valerie C Wasinger, Marit Westerterp, Alan R Tall, Philip J Barter, Kerry-Anne Rye
No abstract text is available yet for this article.
December 1, 2016: Diabetes
https://www.readbyqxmd.com/read/27908648/interdisciplinary-care-of-children-with-severe-bronchopulmonary-dysplasia
#9
Steven H Abman, Joseph M Collaco, Edward G Shepherd, Martin Keszler, Milenka Cuevas-Guaman, Stephen E Welty, William E Truog, Sharon A McGrath-Morrow, Paul E Moore, Lawrence M Rhein, Haresh Kirpalani, Huayan Zhang, Linda L Gratny, Susan K Lynch, Jennifer Curtiss, Barbara S Stonestreet, Robin L McKinney, Kevin C Dysart, Jason Gien, Christopher D Baker, Pamela K Donohue, Eric Austin, Candice Fike, Leif D Nelin
No abstract text is available yet for this article.
November 28, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27908632/risk-of-persistent-and-recurrent-cervical-neoplasia-following-incidentally-detected-adenocarcinoma-in-situ
#10
Aime Munro, Jim Codde, Katrina Spilsbury, Nerida Steel, Colin J R Stewart, Stuart G Salfinger, Jason Tan, Ganendra R Mohan, Yee Leung, James Semmens, Peter O'Leary, Vincent Williams, Paul A Cohen
BACKGROUND: Adenocarcinoma-in-situ (AIS) of the uterine cervix is a precursor to cervical adenocarcinoma and may co-exist with both adenocarcinoma and high-grade squamous dysplasia (cervical intraepithelial neoplasia (CIN) 2 and 3). Up to 60% of AIS lesions are detected incidentally following excisional biopsies performed for the treatment of CIN 2/3. To date there are no data regarding risk factors for persisting or progressive cervical neoplasia in these patients. OBJECTIVE: To investigate patient outcomes following incidentally detected cervical AIS after loop electrosurgical excision procedure (LEEP) or cold knife cone (CKC) biopsy performed for the treatment of high-grade cervical intraepithelial neoplasia (CIN)...
November 28, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27908543/from-the-medical-board-of-the-national-psoriasis-foundation-treatment-targets-for-plaque-psoriasis
#11
April W Armstrong, Michael P Siegel, Jerry Bagel, Erin E Boh, Megan Buell, Kevin D Cooper, Kristina Callis Duffin, Lawrence F Eichenfield, Amit Garg, Joel M Gelfand, Alice B Gottlieb, John Y M Koo, Neil J Korman, Gerald G Krueger, Mark G Lebwohl, Craig L Leonardi, Arthur M Mandelin, M Alan Menter, Joseph F Merola, David M Pariser, Ronald B Prussick, Caitriona Ryan, Kara N Shah, Jeffrey M Weinberg, MaryJane O U Williams, Jashin J Wu, Paul S Yamauchi, Abby S Van Voorhees
BACKGROUND: An urgent need exists in the United States to establish treatment goals in psoriasis. OBJECTIVE: We aim to establish defined treatment targets toward which clinicians and patients with psoriasis can strive to inform treatment decisions, reduce disease burden, and improve outcomes in practice. METHODS: The National Psoriasis Foundation conducted a consensus-building study among psoriasis experts using the Delphi method. The process consisted of: (1) literature review, (2) pre-Delphi question selection and input from general dermatologists and patients, and (3) 4 Delphi rounds...
November 22, 2016: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/27906753/noninvasive-markers-of-liver-fibrosis-on-treatment-changes-of-serum-markers-predict-the-outcome-of-antifibrotic-therapy
#12
Sudeep Tanwar, Paul M Trembling, Brian J Hogan, Ankur Srivastava, Julie Parkes, Scott Harris, Paul Grant, Eleni Nastouli, Mathias Ocker, Klaus Wehr, Christoph Herold, Daniel Neureiter, Detlef Schuppan, William M Rosenberg
AIM: The utility of noninvasive serum markers to longitudinally monitor liver fibrosis is not established. METHODS: A total of 70 patients with chronic hepatitis C who had previously failed antiviral therapy were randomized to receive pegylated interferon with or without silymarin for 24 months. Enhanced Liver Fibrosis (ELF) tests (hyularonic acid, terminal peptide of procollagen III, tissue inhibitor of matrix metaloproteinase-1) were performed on patient sera obtained before, during and at the end of the study (0, 12, 24 months) and liver histology obtained before and at the end of the study...
November 30, 2016: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27906408/spatially-uniform-resistance-switching-of-low-current-high-endurance-titanium-niobium-oxide-memristors
#13
Suhas Kumar, Noraica Davila, Ziwen Wang, Xiaopeng Huang, John Paul Strachan, David Vine, A L David Kilcoyne, Yoshio Nishi, R Stanley Williams
We analyzed micrometer-scale titanium-niobium-oxide prototype memristors, which exhibited low write-power (<3 μW) and energy (<200 fJ per bit per μm(2)), low read-power (∼nW), and high endurance (>millions of cycles). To understand their physico-chemical operating mechanisms, we performed in operando synchrotron X-ray transmission nanoscale spectromicroscopy using an ultra-sensitive time-multiplexed technique. We observed only spatially uniform material changes during cell operation, in sharp contrast to the frequently detected formation of a localized conduction channel in transition-metal-oxide memristors...
December 1, 2016: Nanoscale
https://www.readbyqxmd.com/read/27904163/the-impact-of-direct-cardiac-output-determination-on-using-a-widely-available-direct-continuous-oxygen-consumption-measuring-device-on-the-hemodynamic-assessment-of-aortic-valve
#14
Zaher Fanari, Matthew Grove, Anitha Rajamanickam, Sumaya Hammami, Cassie Walls, Paul Kolm, Mitchell Saltzberg, William S Weintraub, Andrew J Doorey
BACKGROUND: Accurate assessment of cardiac output (CO) is essential for the hemodynamic assessment of aortic valve area (AVA). Estimation of oxygen consumption (VO2) and Thermodilution (TD) is employed in many cardiac catheterization laboratories (CCL) given the historically cumbersome nature of direct continuous VO2 measurement, the "gold standard" for this technique. A portable facemask device simplifies the direct continuous measurement of VO2, allowing for relatively rapid and continuous assessment of CO and AVA...
September 2016: Delaware Medical Journal
https://www.readbyqxmd.com/read/27904162/impact-of-catheterization-lab-computer-software-settings-on-hemodynamic-assessment-of-aortic-stenosis
#15
Zaher Fanari, Anitha Rajamanickam, Mathew Grove, Sumaya Hammami, Cassie Walls, Paul Kolm, William Weintraub, Andrew J Doorey
BACKGROUND: Accurate assessment of Cardiac Output (CO) is a critical measurement in the calculation of aortic valve area (AVA). Due to the known inaccuracy of estimated Fick calculations, many measure thermodilution (TD) CO as well due to previous studies showing better correlation with the gold standard direct CO. Previous studies showed suboptimal correlation between both methods. Most physicians assume that the TD CO is chosen by catheterization laboratory software for AVA evaluation...
July 2016: Delaware Medical Journal
https://www.readbyqxmd.com/read/27904039/role-of-rac1-wave2-signaling-in-mediating-the-inhibitory-effects-of-%C3%AE-tocotrienol-on-mammary-cancer-cell-migration-and-invasion
#16
Ibrahim Gayadh Algayadh, Venkateshwararao Dronamraju, Paul William Sylvester
The majority of breast cancer deaths result from the progression of this disease to a metastatic phenotype. Rac1 and Cdc42 are Rho family members that together with their downstream effectors, Wiskott-Aldrich Syndrome protein-family verprolin-homologous protein 2 (WAVE2) and Arp2/3, play an important role in cytoskeletal reorganization and the formation of membrane protrusions that promote cancer cell migration and invasion. γ-Tocotrienol, is a natural isoform within the vitamin E family of compounds that inhibits breast cancer cell growth and progression by suppressing various signaling pathways involved in mitogenic signaling and metastatic progression...
2016: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27902285/raineyella-antarctica-gen-nov-sp-nov-a-novel-psychrotolerant-d-amino-acid-utilizing-anaerobe-isolated-from-two-geographic-locations-of-the-southern-hemisphere
#17
Elena V Pikuta, Rodolfo Javier Menes, Alisa Michelle Bruce, Zhe Lyu, Nisha Patel, Yuchen Liu, Richard Brice Hoover, Hans Jürgen Busse, Paul A Lawson, William Barney Whitman
Gram-positive bacterium, strain LZ-22T, was isolated from a rhizosphere of moss Leptobryum sp. collected at the shore of Lake Zub in Antarctica. Cells were motile, straight or pleomorphic rods with sizes of 0.6-1.0 x 3.5-10 μm. The new isolate was a facultatively anaerobic, catalase positive, psychrotolerant mesophile. Growth was observed at 3-41 oC (optimum 24-30 oC), 0-7 % NaCl, w/v (optimum, 0.25 %) and pH 4.0-9.0 (optimum 7.8). The quinone system of strain LZ-22T possessed predominately menaquinones MK-9(H4)...
October 12, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27900942/association-between-chronic-kidney-disease-and-cancer-mortality-a-report-from-the-allhat
#18
Dhruti P Chen, Barry R Davis, Lara M Simpson, William C Cushman, Jeffrey A Cutler, Mirela Dobre, Charles E Ford, Gail T Louis, Paul Muntner, Suzanne Oparil, Linda B Piller, Sara L Pressel, Mark J Sarnak, Paul K Whelton, Jackson T Wright, Mahboob Rahman
BACKGROUND/OBJECTIVES: Chronic kidney disease (CKD) and cancer are both common in older patients; whether CKD increases risk for cancer is unclear. This study evaluated CKD as a risk factor for cancer mortality in a large cohort of hypertensive patients. STUDY DESIGN: We did post-hoc analyses of in-trial and post-trial data from participants in the Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT). SETTING AND PARTICIPANTS: Participants were ≥ 55 years old with hypertension and one other additional risk factor for coronary heart disease...
November 30, 2016: Clinical Nephrology
https://www.readbyqxmd.com/read/27899575/ensembl-2017
#19
Bronwen L Aken, Premanand Achuthan, Wasiu Akanni, M Ridwan Amode, Friederike Bernsdorff, Jyothish Bhai, Konstantinos Billis, Denise Carvalho-Silva, Carla Cummins, Peter Clapham, Laurent Gil, Carlos García Girón, Leo Gordon, Thibaut Hourlier, Sarah E Hunt, Sophie H Janacek, Thomas Juettemann, Stephen Keenan, Matthew R Laird, Ilias Lavidas, Thomas Maurel, William McLaren, Benjamin Moore, Daniel N Murphy, Rishi Nag, Victoria Newman, Michael Nuhn, Chuang Kee Ong, Anne Parker, Mateus Patricio, Harpreet Singh Riat, Daniel Sheppard, Helen Sparrow, Kieron Taylor, Anja Thormann, Alessandro Vullo, Brandon Walts, Steven P Wilder, Amonida Zadissa, Myrto Kostadima, Fergal J Martin, Matthieu Muffato, Emily Perry, Magali Ruffier, Daniel M Staines, Stephen J Trevanion, Fiona Cunningham, Andrew Yates, Daniel R Zerbino, Paul Flicek
Ensembl (www.ensembl.org) is a database and genome browser for enabling research on vertebrate genomes. We import, analyse, curate and integrate a diverse collection of large-scale reference data to create a more comprehensive view of genome biology than would be possible from any individual dataset. Our extensive data resources include evidence-based gene and regulatory region annotation, genome variation and gene trees. An accompanying suite of tools, infrastructure and programmatic access methods ensure uniform data analysis and distribution for all supported species...
November 28, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27899403/meta-analysis-of-genome-wide-association-studies-for-abdominal-aortic-aneurysm-identifies-four-new-disease-specific-risk-loci
#20
Gregory T Jones, Gerard Tromp, Helena Kuivaniemi, Solveig Gretarsdottir, Annette F Baas, Betti Giusti, Ewa Strauss, Femke N van 't Hof, Thomas Webb, Robert Erdman, Marylyn D Ritchie, James R Elmore, Anurag Verma, Sarah Pendergrass, Iftikhar J Kullo, Zi Ye, Peggy L Peissig, Omri Gottesman, Shefali S Verma, Jennifer Malinowski, Laura J Rasmussen-Torvik, Kenneth Borthwick, Diane T Smelser, David R Crosslin, Mariza de Andrade, Evan J Ryer, Catherine A McCarty, Erwin P Bottinger, Jennifer A Pacheco, Dana C Crawford, David S Carrell, Glenn S Gerhard, David P Franklin, David J Carey, Victoria L Phillips, Michael J Williams, Wenhua Wei, Ross Blair, Andrew A Hill, Thodur M Vasudevan, David R Lewis, Ian A Thomson, Jo Krysa, Geraldine B Hill, Justin Roake, Tony R Merriman, Grzegorz Oszkinis, Silvia Galora, Claudia Saracini, Rosanna Abbate, Raffaele Pulli, Carlo Pratesi, Athanasios Saratzis, Anna Verissimo, Suzannah J Bumpstead, Stephen A Badger, Rachel E Clough, Gillian W Cockerill, Hany Hafez, D J Scott, T S Futers, Simon P Romaine, Katherine Bridge, Kathryn J Griffin, Marc A Bailey, Alberto Smith, Matt M Thompson, Frank van Bockxmeer, Stefan E Matthiasson, Gudmar Thorleifsson, Unnur Thorsteinsdottir, Jan D Blankensteijn, Joep A Teijink, Cisca Wijmenga, Jacqueline de Graaf, Lambertus A Kiemeney, Jes S Lindholt, Anne E Hughes, Declan T Bradley, Kathleen Stirrups, Jonathan Golledge, Paul E Norman, Janet T Powell, Steve E Humphries, Stephen E Hamby, Alison H Goodall, Christopher P Nelson, Natzi Sakalihasan, Audrey Courtois, Robert E Ferrell, Per Eriksson, Lasse Folkersen, Anders Franco-Cereceda, John D Eicher, Andrew D Johnson, Christer Betsholtz, Arno Ruusalepp, Oscar Franzén, Eric Schadt, Johan L Björkegren, Leonard Lipovich, Anne M Drolet, Eric Verhoeven, Clark J Zeebregts, Robert H Geelkerken, Marc R van Sambeek, Steven M van Sterkenburg, Jean-Paul P de Vries, Kari Stefansson, John R Thompson, Paul I de Bakker, Panos Deloukas, Robert D Sayers, Seamus Harrison, Andre M van Rij, Nilesh J Samani, Matthew J Bown
RATIONALE: Abdominal aortic aneurysm (AAA) is a complex disease with both genetic and environmental risk factors. Together, 6 previously identified risk loci only explain a small proportion of the heritability of AAA. OBJECTIVE: To identify additional AAA risk loci using data from all available genome-wide association studies (GWAS). METHODS AND RESULTS: Through a meta-analysis of 6 GWAS datasets and a validation study totalling 10,204 cases and 107,766 controls we identified 4 new AAA risk loci: 1q32...
November 29, 2016: Circulation Research
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