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https://www.readbyqxmd.com/read/28199403/comparison-of-microbiological-diagnosis-of-urinary-tract-infection-in-young-children-by-routine-health-service-laboratories-and-a-research-laboratory-diagnostic-cohort-study
#1
Kate Birnie, Alastair D Hay, Mandy Wootton, Robin Howe, Alasdair MacGowan, Penny Whiting, Michael Lawton, Brendan Delaney, Harriet Downing, Jan Dudley, William Hollingworth, Catherine Lisles, Paul Little, Kathryn O'Brien, Timothy Pickles, Kate Rumsby, Emma Thomas-Jones, Judith Van der Voort, Cherry-Ann Waldron, Kim Harman, Kerenza Hood, Christopher C Butler, Jonathan A C Sterne
OBJECTIVES: To compare the validity of diagnosis of urinary tract infection (UTI) through urine culture between samples processed in routine health service laboratories and those processed in a research laboratory. POPULATION AND METHODS: We conducted a prospective diagnostic cohort study in 4808 acutely ill children aged <5 years attending UK primary health care. UTI, defined as pure/predominant growth ≥105 CFU/mL of a uropathogen (the reference standard), was diagnosed at routine health service laboratories and a central research laboratory by culture of urine samples...
2017: PloS One
https://www.readbyqxmd.com/read/28194458/an-assessment-of-hydrocarbon-species-in-the-methanol-to-hydrocarbon-reaction-over-a-zsm-5-catalyst
#2
Suwardiyanto, Russell F Howe, Emma K Gibson, C Richard A Catlow, Ali Hameed, James McGregor, Paul Collier, Stewart F Parker, David Lennon
A ZSM-5 catalyst is examined in relation to the methanol-to-hydrocarbon (MTH) reaction as a function of reaction temperature and time-on-stream. The reaction profile is characterised using in-line mass spectrometry. Furthermore, the material contained within a catch-pot downstream from the reactor is analysed using gas chromatography-mass spectrometry. For a fixed methanol feed, reaction conditions are selected to define various stages of the reaction coordinate: (i) initial methanol adsorption at a sub-optimum reaction temperature (1 h at 200 °C); (ii) initial stages of reaction at an optimised reaction temperature (1 h at 350 °C); (iii) steady-state operation at an optimised reaction temperature (3 days at 350 °C); and (iv) accelerated ageing (3 days at 400 °C)...
February 14, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28193518/safety-and-efficacy-of-elbasvir-grazoprevir-in-patients-with-hepatitis-c-virus-infection-and-compensated-cirrhosis-an-integrated-analysis
#3
Ira M Jacobson, Eric Lawitz, Paul Y Kwo, Christophe Hézode, Cheng-Yuan Peng, Anita Y M Howe, Peggy Hwang, Janice Wahl, Michael Robertson, Eliav Barr, Barbara A Haber
BACKGROUND & AIMS: Persons with hepatitis C virus (HCV) infection are at risk of progressive liver disease, cirrhosis, and decompensation. We analyzed the effects of the direct-acting antiviral agents elbasvir and grazoprevir in patients with HCV infection and compensated cirrhosis, combining data from 6 clinical trials. METHODS: We performed an integrated analysis of 402 patients with HCV genotype 1, 4, or 6 infection and Child-Pugh A compensated cirrhosis enrolled in 6 clinical trials...
February 10, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28177706/the-effects-of-acute-branched-chain-amino-acid-supplementation-on-recovery-from-a-single-bout-of-hypertrophy-exercise-in-resistance-trained-athletes
#4
Mark Waldron, Kieran Whelan, Owen Jeffries, Dean Burt, Louis Howe, Stephen David Patterson
This study investigated the effects of acute branched-chain amino acid (BCAA) supplementation on recovery from exercise-induced muscle damage, among experienced resistance-trained athletes. In a double-blind matched-pairs design, 16 resistance-trained participants, routinely performing hypertrophy training, were randomly assigned to a BCAA (n = 8) or placebo (n = 8) group. The BCAAs were administered at a dosage of 0.087 g/kg body mass, with a 2:1:1 ratio of leucine, isoleucine and valine. The participants performed 6 sets of 10 full-squats at 70 % 1RM to induce muscle damage...
January 27, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28164302/structural-and-functional-impacts-of-amino-acid-substitutions-that-create-blood-group-antigens-implications-for-immunogenicity
#5
John G Howe, Gary Stack
BACKGROUND: The immunogenicities of polypeptide blood group antigens vary widely. One possible determinant of immunogenicity is antigenic foreignness. The goal was to employ alternative ways of assessing foreignness and determine whether foreignness was related to immunogenicity. STUDY DESIGN AND METHODS: Foreignness was assessed as the extent of protein functional disruption caused by the exofacial amino acid (AA) substitutions that create blood group antigens, using AA substitution prediction algorithms such as Meta-SNP and according to whether those substitutions were radical or conservative...
February 5, 2017: Transfusion
https://www.readbyqxmd.com/read/28152871/breast-cancer-specific-mortality-in-patients-with-early-stage-hormone-receptor-positive-invasive-breast-cancer-and-oncotype-dx-recurrence-score-results-in-the-seer-database
#6
Valentina Petkov, Dave P Miller, Nadia Howlader, Nathan Gliner, Will Howe, Nicola C Schussler, Kathleen Cronin, Frederick L Baehner, Lynne Penberthy
: 176 Background: NCI's SEER Program provides cancer incidence and survival statistics for ~28% of the US. New research models are needed to characterize the use and impact of genomic tests on patient outcomes. Genomic Health and SEER collaborated to electronically supplement SEER registries with Recurrence Score (RS) results, and have evaluated breast cancer specific mortality (BCSM) in early stage hormone receptor (HR)+ HER2- invasive breast cancer. METHODS: Pts were eligible for pre-specified node negative (N-) disease analysis if HR+, HER2- (by RT-PCR), no prior malignancy, 40-85 years of age, and diagnosed between Jan 2004 (Oncotype DX available Jan 2004) and Dec 2011 (SEER survival analysis complete through 2012)...
March 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28137867/structural-insights-into-alternative-splicing-mediated-desensitization-of-jasmonate-signaling
#7
Feng Zhang, Jiyuan Ke, Li Zhang, Rongzhi Chen, Koichi Sugimoto, Gregg A Howe, H Eric Xu, Mingguo Zhou, Sheng Yang He, Karsten Melcher
Jasmonate ZIM-domain (JAZ) transcriptional repressors play a key role in regulating jasmonate (JA) signaling in plants. Below a threshold concentration of jasmonoyl isoleucine (JA-Ile), the active form of JA, the C-terminal Jas motif of JAZ proteins binds MYC transcription factors to repress JA signaling. With increasing JA-Ile concentration, the Jas motif binds to JA-Ile and the COI1 subunit of the SCF(COI1) E3 ligase, which mediates ubiquitination and proteasomal degradation of JAZ repressors, resulting in derepression of MYC transcription factors...
January 30, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28118373/the-role-of-adjuvant-acid-suppression-on-the-outcomes-of-bleeding-esophageal-varices-after-endoscopic-variceal-ligation
#8
Cheng-Kun Wu, Chih-Ming Liang, Chien-Ning Hsu, Tsung-Hsing Hung, Lan-Ting Yuan, Seng-Howe Nguang, Jiunn-Wei Wang, Kuo-Lun Tseng, Ming-Kun Ku, Shih-Cheng Yang, Wei-Chen Tai, Chih-Wei Shih, Pin-I Hsu, Deng-Chyang Wu, Seng-Kee Chuah
The impact of adjuvant acid suppression via proton pump inhibitors or histamine-2 receptor antagonists after endoscopic variceal ligation remains uncertain. We therefore aimed to evaluate the effect of adjuvant acid suppression on the rebleeding and mortality rates in patients who received endoscopic variceal ligation and vasoconstrictor therapy for bleeding esophageal varices. Data from 1997 to 2011 were extracted from the National Health Insurance Research Database in Taiwan. A total of 1576 cirrhotic patients aged > 18 years with a primary diagnosis of acute esophageal variceal bleeding who received endoscopic variceal ligation therapy were screened...
2017: PloS One
https://www.readbyqxmd.com/read/28069034/health-related-quality-of-life-and-unmet-healthcare-needs-in-huntington-s-disease
#9
Marleen R van Walsem, Emilie I Howe, Gunvor A Ruud, Jan C Frich, Nada Andelic
BACKGROUND: Huntington's disease (HD) is a rare neurodegenerative disorder with a prevalence of 6 per 100.000. Despite increasing research activity on HD, evidence on healthcare utilization, patients' needs for healthcare services and Health-Related Quality of Life (HRQoL) is still sparse. The present study describes HRQoL in a Norwegian cohort of HD patients, and assesses associations between unmet healthcare and social support service needs and HRQoL. METHODS: In this cross-sectional population-based study, 84 patients with a clinical diagnosis of HD living in the South-East of Norway completed the HRQoL questionnaire EuroQol, EQ-5D-3L...
January 7, 2017: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/28065755/extended-spectrum-antiprotozoal-bumped-kinase-inhibitors-a-review
#10
Wesley C Van Voorhis, J Stone Doggett, Marilyn Parsons, Matthew A Hulverson, Ryan Choi, Samuel Arnold, Michael W Riggs, Andrew Hemphill, Daniel K Howe, Robert H Mealey, Audrey O T Lau, Ethan A Merritt, Dustin J Maly, Erkang Fan, Kayode K Ojo
Many life-cycle processes in parasites are regulated by protein phosphorylation. Hence, disruption of essential protein kinase function has been explored for therapy of parasitic diseases. However, the difficulty of inhibiting parasite protein kinases to the exclusion of host orthologues poses a practical challenge. A possible path around this difficulty is the use of bumped kinase inhibitors for targeting calcium dependent protein kinases that contain atypically small gatekeeper residues and are crucial for pathogenic apicomplexan parasites' survival and proliferation...
January 5, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28054939/effects-of-resveratrol-on-cognitive-performance-mood-and-cerebrovascular-function-in-post-menopausal-women-a-14-week-randomised-placebo-controlled-intervention-trial
#11
Hamish M Evans, Peter R C Howe, Rachel H X Wong
We tested whether chronic supplementation with resveratrol (a phytoestrogen) could improve cerebrovascular function, cognition and mood in post-menopausal women. Eighty post-menopausal women aged 45-85 years were randomised to take trans-resveratrol or placebo for 14 weeks and the effects on cognitive performance, cerebral blood flow velocity and pulsatility index (a measure of arterial stiffness) in the middle cerebral artery (using transcranial Doppler ultrasound), and cerebrovascular responsiveness (CVR) to both cognitive testing and hypercapnia were assessed...
January 3, 2017: Nutrients
https://www.readbyqxmd.com/read/28054821/multimodal-emotion-processing-deficits-are-present-in-amyotrophic-lateral-sclerosis
#12
Sophie C Andrews, Mathew Staios, Jim Howe, Katrina Reardon, Fiona Fisher
OBJECTIVE: Emotion processing abilities might be reduced in amyotrophic lateral sclerosis (ALS). Previous studies of emotion processing in ALS have inconsistent results, and are limited by variations in task difficulty, modalities examined, and participants' cognitive status. The current study used a battery of emotion processing tasks at differing levels of difficulty and across different modalities (facial affect and voice prosody) to assess the extent of emotion processing deficits in nondemented ALS...
January 5, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28032333/the-effect-of-%C3%AE-1-adrenergic-blockade-on-post-exercise-brachial-artery-flow-mediated-dilatation-at-sea-level-and-high-altitude
#13
Michael M Tymko, Joshua C Tremblay, Alex B Hansen, Connor A Howe, Chris K Willie, Mike Stembridge, Daniel J Green, Ryan L Hoiland, Prajan Subedi, James D Anholm, Philip N Ainslie
KEY POINTS: Our objective was to quantify endothelial function (via brachial artery flow-mediated dilatation) at sea level (344 m) and high altitude (3800 m) at rest and following both maximal exercise and 30 min of moderate-intensity cycling exercise with and without administration of an α1 -adrenergic blockade. Brachial endothelial function did not differ between sea level and high altitude at rest, nor following maximal exercise. At sea level, endothelial function decreased following 30 min of moderate-intensity exercise, and this decrease was abolished with α1 -adrenergic blockade...
November 7, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/28013420/two-year-impact-of-prevention-programs-on-adolescent-depression-an-integrative-data-analysis-approach
#14
C Hendricks Brown, Ahnalee Brincks, Shi Huang, Tatiana Perrino, Gracelyn Cruden, Hilda Pantin, George Howe, Jami F Young, William Beardslee, Samantha Montag, Irwin Sandler
This paper presents the first findings of an integrative data analysis of individual-level data from 19 adolescent depression prevention trials (n = 5210) involving nine distinct interventions across 2 years post-randomization. In separate papers, several interventions have been found to decrease the risk of depressive disorders or elevated depressive/internalizing symptoms among youth. One type of intervention specifically targets youth without a depressive disorder who are at risk due to elevated depressive symptoms and/or having a parent with a depressive disorder...
December 24, 2016: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/28004446/is-h3k4me3-instructive-for-transcription-activation
#15
Françoise S Howe, Harry Fischl, Struan C Murray, Jane Mellor
Tri-methylation of lysine 4 on histone H3 (H3K4me3) is a near-universal chromatin modification at the transcription start site of active genes in eukaryotes from yeast to man and its levels reflect the amount of transcription. Because of this association, H3K4me3 is often described as an 'activating' histone modification and assumed to have an instructive role in the transcription of genes, but the field is lacking a conserved mechanism to support this view. The overwhelming finding from genome-wide studies is that actually very little transcription changes upon removal of most H3K4me3 under steady-state or dynamically changing conditions, including at mammalian CpG island promoters...
January 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/27994759/design-and-synthesis-of-p2-p4-macrocycles-containing-a-unique-spirocyclic-proline-a-new-class-of-hcv-ns3-4a-inhibitors
#16
Francisco Velázquez, Mariappan Chelliah, Martin Clasby, Zhuyan Guo, John Howe, Randy Miller, Santhosh Neelamkavil, Unmesh Shah, Aileen Soriano, Yan Xia, Srikanth Venkatraman, Samuel Chackalamannil, Ian W Davies
A new class of hepatitis C NS3/4A inhibitors was identified by introducing a novel spirocyclic proline-P2 surrogate onto the P2-P4 macrocyclic core of MK-5172 (grazoprevir). The potency profile of new analogues showed excellent pan-genotypic activity for most compounds. The potency evaluation included the most difficult genotype 3a (EC50 values ≤10 nM) and other key genotype 1b mutants. Molecular modeling was used to design new target compounds and rationalize our results. A synthetic approach based on the Julia-Kocienski olefination and macrolactamization to assemble the P2-P4 macrocyclic core containing the novel spirocyclic proline-P2 moiety is presented as well...
December 8, 2016: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27979478/risk-factors-for-superficial-surgical-site-infection-after-elective-rectal-cancer-resection-a-multivariate-analysis-of-8880-patients-from-the-american-college-of-surgeons-national-surgical-quality-improvement-program-database
#17
Elie Sutton, Hiromichi Miyagaki, Geoffrey Bellini, H M C Shantha Kumara, Xiaohong Yan, Brett Howe, Amanda Feigel, Richard L Whelan
BACKGROUND: Superficial surgical site infection (sSSI) is one of the most common complications after colorectal resection. The goal of this study was to determine the comorbidities and operative characteristics that place patients at risk for sSSI in patients who underwent rectal cancer resection. METHODS: The American College of Surgeons National Surgical Quality Improvement Program database was queried (via diagnosis and Current Procedural Terminology codes) for patients with rectal cancer who underwent elective resection between 2005 and 2012...
January 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/27899176/ecosystem-uptake-and-transfer-of-sellafield-derived-radiocarbon-14-c-part-2-the-west-of-scotland
#18
Kieran M Tierney, Graham K P Muir, Gordon T Cook, Gillian MacKinnon, John A Howe, Johanna J Heymans, David J Hughes, Sheng Xu
Ecosystem uptake and transfer of Sellafield-derived radiocarbon ((14)C) were examined within the West of Scotland marine environment. The dissolved inorganic carbon component of seawater, enriched in (14)C, is transported to the West of Scotland where it is transferred through the marine food web. Benthic and pelagic biota with variable life-spans living in the North Channel and Clyde Sea show comparable (14)C activities. This suggests that mixing of (14)C within the Irish Sea results in a relatively constant northwards dispersal of activity...
November 26, 2016: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/27870065/photoacclimatory-and-photoprotective-responses-to-cold-versus-heat-stress-in-high-latitude-reef-corals
#19
Stefanie Pontasch, Paul L Fisher, Thomas Krueger, Sophie Dove, William Leggat, Ove Hoegh-Guldberg, Simon K Davy
Corals at the world's southernmost coral reef of Lord Howe Island (LHI) experience large temperature and light fluctuations and need to deal with periods of cold temperature (< 18 °C), but few studies have investigated how corals are able to cope with these conditions. Our study characterized the response of key photophysiological parameters, as well as photoacclimatory and photoprotective pigments (chlorophylls, xanthophylls and β-carotene), to short-term (5-day) cold stress (~ 15 °C; 7 °C below control) in three LHI coral species hosting distinct Symbiodinium ITS2 types, and compared the coral-symbiont response to that under elevated temperature (~ 29 °C; 7 °C above control)...
November 21, 2016: Journal of Phycology
https://www.readbyqxmd.com/read/27863789/comparative-analysis-of-radioactive-iodine-versus-thyroidectomy-for-definitive-treatment-of-graves-disease
#20
Vincent T Wu, Allison W Lorenzen, Anna C Beck, Vincent J Reid, Sonia L Sugg, James R Howe, Janet H Pollard, Geeta Lal, Ronald J Weigel
BACKGROUND: Management of Graves disease includes antithyroid drugs, (131)I therapy, or thyroidectomy. Our aim was to review our institutional experience with definitive treatments for Graves disease. METHODS: This was a retrospective review of patients undergoing (131)I therapy (n = 295) or thyroidectomy (n = 103) for Graves disease (2003-2015). Demographic, clinical, pathology, and outcome data were collected from institutional databases. RESULTS: (131)I therapy patients were older (39...
January 2017: Surgery
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