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Alan Brown

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https://www.readbyqxmd.com/read/27917921/exploring-the-relationship-between-eye-movements-and-electrocardiogram-interpretation-accuracy
#1
Alan Davies, Gavin Brown, Markel Vigo, Simon Harper, Laura Horseman, Bruno Splendiani, Elspeth Hill, Caroline Jay
Interpretation of electrocardiograms (ECGs) is a complex task involving visual inspection. This paper aims to improve understanding of how practitioners perceive ECGs, and determine whether visual behaviour can indicate differences in interpretation accuracy. A group of healthcare practitioners (n = 31) who interpret ECGs as part of their clinical role were shown 11 commonly encountered ECGs on a computer screen. The participants' eye movement data were recorded as they viewed the ECGs and attempted interpretation...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27908600/adenoma-recurrence-after-piecemeal-colonic-emr-is-predictable-the-sydney-emr-recurrence-tool
#2
David J Tate, Lobke Desomer, Amir Klein, Gregor Brown, Luke F Hourigan, Eric Yt Lee, Alan Moss, Donald Ormonde, Spiro Raftopoulos, Rajvinder Singh, Stephen J Williams, Simon Zanati, Karen Byth, Michael J Bourke
BACKGROUND AND AIMS: Endoscopic mucosal resection (EMR) is the primary treatment of large laterally spreading colonic lesions (LSL). Residual or recurrent adenoma (RRA) is a major limitation. We aimed to identify a robust method to stratify risk of RRA. METHODS: Prospective multicenter data on consecutive LSL ≥ 20mm removed by piecemeal EMR from eight Australian tertiary centers was included (September 2008 until May 2016). A logistic regression model for endoscopically determined recurrence (EDR) was created on a randomly selected half of the cohort to yield the Sydney EMR Recurrence Tool (SERT), a 4-point score to stratify the incidence of RRA based on characteristics of the index EMR...
November 28, 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27894952/comparison-of-creatinine-and-cystatin-c-based-egfr-in-the-estimation-of-glomerular-filtration-rate-in-indigenous-australians-the-egfr-study
#3
Elizabeth Lm Barr, Louise J Maple-Brown, Federica Barzi, Jaquelyne T Hughes, George Jerums, Elif I Ekinci, Andrew G Ellis, Graham Rd Jones, Paul D Lawton, Cherian Sajiv, Sandawana W Majoni, Alex Dh Brown, Wendy E Hoy, Kerin O'Dea, Alan Cass, Richard J MacIsaac
BACKGROUND: The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation that combines creatinine and cystatin C is superior to equations that include either measure alone in estimating glomerular filtration rate (GFR). However, whether cystatin C can provide any additional benefits in estimating GFR for Indigenous Australians, a population at high risk of end-stage kidney disease (ESKD) is unknown. METHODS: Using a cross-sectional analysis from the eGFR Study of 654 Indigenous Australians at high risk of ESKD, eGFR was calculated using the CKD-EPI equations for serum creatinine (eGFRcr), cystatin C (eGFRcysC) and combined creatinine and cystatin C (eGFRcysC+cr)...
November 25, 2016: Clinical Biochemistry
https://www.readbyqxmd.com/read/27892805/addressing-the-needs-of-nicaraguan-older-adults-living-on-the-edge-a-university-community-partnership-in-international-service-learning
#4
Margaret B Neal, Melissa Cannon, Alan DeLaTorre, Cory R Bolkan, Iris Wernher, Elisabeth Nolan, Milton López Norori, Carmen Largaespada-Fredersdorff, Keren Brown Wilson
Nicaragua is a very low-income country entering a period of rapid aging with limited geriatric training for health care professionals (López & Reyes-Ortiz, 2015). To help build capacity and to enhance student learning, a short-term international service-learning program was implemented in 2004 in partnership with the Jessie F. Richardson Foundation and Nicaraguan community stakeholders. Graduate and undergraduate students at Portland State University complete coursework for one term in the U.S. then travel to Nicaragua for about 2 weeks to participate in educational, research, and service activities, primarily in group homes for older Nicaraguans...
November 28, 2016: Gerontology & Geriatrics Education
https://www.readbyqxmd.com/read/27892474/caterpillar-induced-plant-volatiles-attract-conspecific-adults-in-nature
#5
Ashraf M El-Sayed, Alan L Knight, John A Byers, Gary J R Judd, David M Suckling
Plants release volatiles in response to caterpillar feeding that attract natural enemies of the herbivores, a tri-trophic interaction which has been considered an indirect plant defence against herbivores. The caterpillar-induced plant volatiles have been reported to repel or attract conspecific adult herbivores. To date however, no volatile signals that either repel or attract conspecific adults under field conditions have been chemically identified. Apple seedlings uniquely released seven compounds including acetic acid, acetic anhydride, benzyl alcohol, benzyl nitrile, indole, 2-phenylethanol, and (E)-nerolidol only when infested by larvae of the light brown apple moth, Epiphyas postvittana...
November 28, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27881644/suppression-of-adenovirus-replication-by-cardiotonic-steroids
#6
Filomena Grosso, Peter Stoilov, Clifford Lingwood, Martha Brown, Alan Cochrane
: The dependence of adenovirus on the host pre-RNA splicing machinery for expression of its complete genome, potentially makes it vulnerable to modulators of RNA splicing, such as digoxin and digitoxin. Both drugs reduced the yield of four adenoviruses (HAdV-A31, B35, C5 and a species D conjunctivitis isolate) by at least 2- 3 logs by affecting one or more steps needed for genome replication. Immediate early E1A protein levels are unaffected by the drugs, but synthesis of the delayed protein E4orf6 and the major late capsid protein, hexon, are compromised...
November 23, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27874276/prenatal-toxoplasmosis-antibody-and-childhood-autism
#7
Marisa N Spann, Andre Sourander, Heljä-Marja Surcel, Susanna Hinkka-Yli-Salomäki, Alan S Brown
There is evidence that some maternal infections during the prenatal period are associated with neurodevelopmental disorders, such as childhood autism. However, the association between autism and Toxoplasma gondii (T. gondii), an intracellular parasite, remains unclear. The authors examined whether serologically confirmed maternal antibodies to T. gondii are associated with odds of childhood autism in offspring. The study is based on a nested case-control design of a large national birth cohort (N = 1.2 million) and the national psychiatric registries in Finland...
November 22, 2016: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/27872117/protocol-for-a-multicentre-randomised-feasibility-trial-evaluating-early-surgery-alone-in-low-rectal-cancer-sailor
#8
Dean A Harris, Kymberley Thorne, Hayley Hutchings, Saiful Islam, Gail Holland, Olivia Hatcher, Sarah Gwynne, Ian Jenkins, Peter Coyne, Michael Duff, Melanie Feldman, Des C Winter, Simon Gollins, Phil Quirke, Nick West, Gina Brown, Deborah Fitzsimmons, Alan Brown, John Beynon
INTRODUCTION: There are 11 500 rectal cancers diagnosed annually in the UK. Although surgery remains the primary treatment, there is evidence that preoperative radiotherapy (RT) improves local recurrence rates. High-quality surgery in rectal cancer is equally important in minimising local recurrence. Advances in MRI-guided prediction of resection margin status and improvements in abdominoperineal excision of the rectum (APER) technique supports a reassessment of the contribution of preoperative RT...
November 21, 2016: BMJ Open
https://www.readbyqxmd.com/read/27863242/decoding-mammalian-ribosome-mrna-states-by-translational-gtpase-complexes
#9
Sichen Shao, Jason Murray, Alan Brown, Jack Taunton, V Ramakrishnan, Ramanujan S Hegde
In eukaryotes, accurate protein synthesis relies on a family of translational GTPases that pair with specific decoding factors to decipher the mRNA code on ribosomes. We present structures of the mammalian ribosome engaged with decoding factor⋅GTPase complexes representing intermediates of translation elongation (aminoacyl-tRNA⋅eEF1A), termination (eRF1⋅eRF3), and ribosome rescue (Pelota⋅Hbs1l). Comparative analyses reveal that each decoding factor exploits the plasticity of the ribosomal decoding center to differentially remodel ribosomal proteins and rRNA...
November 17, 2016: Cell
https://www.readbyqxmd.com/read/27857309/time-resolved-long-wave-infrared-laser-induced-breakdown-spectroscopy-of-inorganic-energetic-materials-by-a-rapid-mercury-cadmium-telluride-linear-array-detection-system
#10
Clayton S-C Yang, Feng Jin, Sudhir Trivedi, Eiei Brown, Uwe Hommerich, Jacob B Khurgin, Alan C Samuels
A mercury-cadmium-telluride linear array detection system that is capable of rapidly capturing (∼1-5 s) a broad spectrum of atomic and molecular laser-induced breakdown spectroscopy (LIBS) emissions in the long-wave infrared region (LWIR, ∼5.6-10 μm) was recently developed. Similar to the conventional ultraviolet-visible LIBS, a broadband emission spectrum of condensed phase samples covering a 5.6-10 μm spectral region could be acquired from just a single laser-induced micro-plasma. Intense and distinct atomic and molecular LWIR emission signatures of various solid inorganic energetic materials were readily observed and identified...
November 10, 2016: Applied Optics
https://www.readbyqxmd.com/read/27842715/characterization-of-microplastic-and-mesoplastic-debris-in-sediments-from-kamilo-beach-and-kahuku-beach-hawai-i
#11
Alan M Young, James A Elliott
Sediment samples were collected from two Hawai'ian beaches, Kahuku Beach on O'ahu and Kamilo Beach on the Big Island of Hawai'i. A total of 48,988 large microplastic and small mesoplastic (0.5-8mm) particles were handpicked from the samples and sorted into four size classes (0.5-1mm, 1-2mm, 2-4mm, 4-8mm) and nine color categories. For all sizes combined the most common plastic fragment color was white/transparent (71.8%) followed by blue (8.5%), green (7.5%), black/grey (7.3%), red/pink (2.6%), yellow (1.2%), orange (0...
November 11, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27831854/this-issue
#12
E Sherwood Brown, Alan I Green
No abstract text is available yet for this article.
July 2016: Journal of Dual Diagnosis
https://www.readbyqxmd.com/read/27821581/association-between-the-use-of-long-acting-insulin-and-hypoglycemia-in-nondiabetic-patients-in-the-surgical-intensive-care-unit
#13
Jordan Masse, Christopher Alan Giuliano, Sara Brown, Renee Alexander Paxton
PURPOSE: The purpose of this study was to examine the association between long-acting insulin and hypoglycemia in nondiabetic surgical intensive care patients. METHODS: This single-center, retrospective cohort study evaluated glycemic control in nondiabetic critically ill surgical patients receiving long-acting insulin plus sliding scale versus those receiving sliding scale alone. Patients were matched based on sliding scale order and type of surgery. The primary outcome was the proportion of patients who experienced hypoglycemia (glucose values <70 mg/dL)...
November 7, 2016: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/27818077/altered-growth-trajectory-of-head-circumference-during-infancy-and-schizophrenia-in-a-national-birth-cohort
#14
Alan S Brown, David Gyllenberg, Susanna Hinkka-Yli-Salomäki, Andre Sourander, Ian W McKeague
Identification of abnormalities in the developmental trajectory during infancy of future schizophrenia cases offers the potential to reveal pathogenic mechanisms of this disorder. Previous studies of head circumference in pre-schizophrenia were limited to measures at birth. The use of growth acceleration of head circumference (defined as the rate of change in head circumference) provides a more informative representation of the maturational landscape of this measure compared to studies based on static head circumference measures...
November 4, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27802688/the-phase-contrast-imaging-instrument-at-the-matter-in-extreme-conditions-endstation-at-lcls
#15
Bob Nagler, Andreas Schropp, Eric C Galtier, Brice Arnold, Shaughnessy B Brown, Alan Fry, Arianna Gleason, Eduardo Granados, Akel Hashim, Jerome B Hastings, Dirk Samberg, Frank Seiboth, Franz Tavella, Zhou Xing, Hae Ja Lee, Christian G Schroer
We describe the phase-contrast imaging instrument at the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light Source. The instrument can image phenomena with a spatial resolution of a few hundreds of nanometers and at the same time reveal the atomic structure through X-ray diffraction, with a temporal resolution better than 100 fs. It was specifically designed for studies relevant to high-energy-density science and can monitor, e.g., shock fronts, phase transitions, or void collapses. This versatile instrument was commissioned last year and is now available to the MEC user community...
October 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27784725/characterisation-of-homologous-sphingosine-1-phosphate-lyase-s1pl-isoforms-in-the-bacterial-pathogen-burkholderia-pseudomallei
#16
Christopher McLean, Jon Marles-Wright, Rafael Custodio, Jonathan Lowther, Amanda J Kennedy, Jacob Pollock, David J Clarke, Alan R Brown, Dominic J Campopiano
Sphingolipids (SLs) are ubiquitous elements in eukaryotic membranes and are also found in some bacterial and viral species. As well as playing an integral structural role, SLs also act as potent signalling molecules involved in numerous cellular pathways and have been linked to many human diseases. A central SL signalling molecule is sphingosine-1-phosphate (S1P) whose breakdown is catalysed by sphingosine-1-phosphate lyase (S1PL), a pyridoxal 5 '-phosphate (PLP) dependent enzyme that catalyses the cleavage of S1P to (2E)-hexadecenal (2E-HEX) and phosphoethanolamine (PE)...
October 26, 2016: Journal of Lipid Research
https://www.readbyqxmd.com/read/27782940/effects-of-obesity-and-leptin-deficiency-on-morphine-pharmacokinetics-in-a-mouse-model
#17
Nicholas M Dalesio, Craig W Hendrix, Douglas Hale McMichael, Carol B Thompson, Carlton K K Lee, Huy Pho, Rafael S Arias, Rachael Rzasa Lynn, Jeffrey Galinkin, Myron Yaster, Robert H Brown, Alan R Schwartz
BACKGROUND: Obesity causes multiorgan dysfunction, specifically metabolic abnormalities in the liver. Obese patients are opioid-sensitive and have high rates of respiratory complications after surgery. Obesity also has been shown to cause resistance to leptin, an adipose-derived hormone that is key in regulating hunger, metabolism, and respiratory stimulation. We hypothesized that obesity and leptin deficiency impair opioid pharmacokinetics (PK) independently of one another. METHODS: Morphine PK were characterized in C57BL/6J wild-type (WT), diet-induced obese (DIO), and leptin-deficient (ob/ob) mice, and in ob/ob mice given leptin-replacement (LR) therapy...
December 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27773426/peritoneal-or-hemodialysis-for-the-frail-elderly-patient-the-choice-of-2-evils
#18
Edwina A Brown, Frederic O Finkelstein, Osasuyi U Iyasere, Alan S Kliger
Management of older people on dialysis requires focus on the wider aspects of aging as well as dialysis. Almost all frail and older patients receiving dialysis will default to in-center hemodialysis, although the availability of assisted peritoneal dialysis enables dialysis at home. As with any disease management decision, patients approaching end-stage renal disease need all the appropriate facts about their prognosis, the natural history of their disease without dialysis, and the resulting outcomes and complications of the different dialysis modalities...
October 20, 2016: Kidney International
https://www.readbyqxmd.com/read/27769829/graphical-display-of-histopathology-data-from-toxicology-studies-for-drug-discovery-and-development-an-industry-perspective
#19
Alan P Brown, Philip Drew, Brian Knight, Philippe Marc, Sean Troth, Kuno Wuersch, Joyce Zandee
Histopathology data comprise a critical component of pharmaceutical toxicology studies and are typically presented as finding incidence counts and severity scores per organ, and tabulated on multiple pages which can be challenging for review and aggregation of results. However, the SEND (Standard for Exchange of Nonclinical Data) standard provides a means for collecting and managing histopathology data in a uniform fashion which can allow informatics systems to archive, display and analyze data in novel ways...
December 2016: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/27766616/genomics-of-primary-chemoresistance-and-remission-induction-failure-in-paediatric-and-adult-acute-myeloid-leukaemia
#20
Fiona C Brown, Paolo Cifani, Esther Drill, Jie He, Eric Still, Shan Zhong, Sohail Balasubramanian, Dean Pavlick, Bahar Yilmazel, Kristina M Knapp, Todd A Alonzo, Soheil Meshinchi, Richard M Stone, Steven M Kornblau, Guido Marcucci, Alan S Gamis, John C Byrd, Mithat Gonen, Ross L Levine, Alex Kentsis
Cure rates of children and adults with acute myeloid leukaemia (AML) remain unsatisfactory partly due to chemotherapy resistance. We investigated the genetic basis of AML in 107 primary cases by sequencing 670 genes mutated in haematological malignancies. SETBP1, ASXL1 and RELN mutations were significantly associated with primary chemoresistance. We identified genomic alterations not previously described in AML, together with distinct genes that were significantly overexpressed in therapy-resistant AML. Defined gene mutations were sufficient to explain primary induction failure in only a minority of cases...
October 21, 2016: British Journal of Haematology
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