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Blair PS, Young G, Clement C, Dixon P, Seume P, Ingram J, Taylor J, Cabral C, Lucas PJ, Beech E, Horwood J, Gulliford M, Francis NA, Creavin S, Lane JA, Bevan S, Hay AD. Multi-faceted intervention to improve management of antibiotics for children presenting to primary care with acute cough and respiratory tract infection (CHICO): efficient cluster randomised controlled trial. BMJ 2023; 381:e072488. [PMID: 37100446 PMCID: PMC10131137 DOI: 10.1136/bmj-2022-072488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
OBJECTIVE To assess whether an easy-to-use multifaceted intervention for children presenting to primary care with respiratory tract infections would reduce antibiotic dispensing, without increasing hospital admissions for respiratory tract infection. DESIGN Two arm randomised controlled trial clustered by general practice, using routine outcome data, with qualitative and economic evaluations. SETTING English primary care practices using the EMIS electronic medical record system. PARTICIPANTS Children aged 0-9 years presenting with respiratory tract infection at 294 general practices, before and during the covid-19 pandemic. INTERVENTION Elicitation of parental concerns during consultation; a clinician focused prognostic algorithm to identify children at very low, normal, or elevated 30 day risk of hospital admission accompanied by antibiotic prescribing guidance; and a leaflet for carers including safety netting advice. MAIN OUTCOME MEASURES Rate of dispensed amoxicillin and macrolide antibiotics (superiority comparison) and hospital admissions for respiratory tract infection (non-inferiority comparison) for children aged 0-9 years over 12 months (same age practice list size as denominator). RESULTS Of 310 practices needed, 294 (95%) were randomised (144 intervention and 150 controls) representing 5% of all registered 0-9 year olds in England. Of these, 12 (4%) subsequently withdrew (six owing to the pandemic). Median intervention use per practice was 70 (by a median of 9 clinicians). No evidence was found that antibiotic dispensing differed between intervention practices (155 (95% confidence interval 138 to 174) items/year/1000 children) and control practices (157 (140 to 176) items/year/1000 children) (rate ratio 1.011, 95% confidence interval 0.992 to 1.029; P=0.25). Pre-specified subgroup analyses suggested reduced dispensing in intervention practices with fewer prescribing nurses, in single site (compared with multisite) practices, and in practices located in areas of lower socioeconomic deprivation, which may warrant future investigation. Pre-specified sensitivity analysis suggested reduced dispensing among older children in the intervention arm (P=0.03). A post hoc sensitivity analysis suggested less dispensing in intervention practices before the pandemic (rate ratio 0.967, 0.946 to 0.989; P=0.003). The rate of hospital admission for respiratory tract infections in the intervention practices (13 (95% confidence interval 10 to 18) admissions/1000 children) was non-inferior compared with control practices (15 (12 to 20) admissions/1000 children) (rate ratio 0.952, 0.905 to 1.003). CONCLUSIONS This multifaceted antibiotic stewardship intervention for children with respiratory tract infections did not reduce overall antibiotic dispensing or increase respiratory tract infection related hospital admissions. Evidence suggested that in some subgroups and situations (for example, under non-pandemic conditions) the intervention slightly reduced prescribing rates but not in a clinically relevant way. TRIAL REGISTRATION ISRCTN11405239ISRCTN registry ISRCTN11405239.
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Affiliation(s)
- Peter S Blair
- Centre for Academic Child Health, Bristol Medical School, University of Bristol, Bristol, UK
| | - Grace Young
- Bristol Trials Centre, Bristol Medical School, University of Bristol, Bristol, UK
| | - Clare Clement
- Bristol Trials Centre, Bristol Medical School, University of Bristol, Bristol, UK
| | - P Dixon
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Penny Seume
- Centre for Academic Primary Care, Bristol Medical School, University of Bristol, Bristol, UK
| | - Jenny Ingram
- Centre for Academic Child Health, Bristol Medical School, University of Bristol, Bristol, UK
| | - Jodi Taylor
- Bristol Trials Centre, Bristol Medical School, University of Bristol, Bristol, UK
| | - Christie Cabral
- Centre for Academic Primary Care, Bristol Medical School, University of Bristol, Bristol, UK
| | | | | | - Jeremy Horwood
- Centre for Academic Primary Care, Bristol Medical School, University of Bristol, Bristol, UK
| | - Martin Gulliford
- King's College London, School of Population and Life Course Sciences London, UKPrimary Care Research Centre, School of Primary Care Population Sciences and Medical Education, University of Southampton, Southampton, UK
| | | | - Sam Creavin
- Centre for Academic Primary Care, Bristol Medical School, University of Bristol, Bristol, UK
| | - Janet A Lane
- Bristol Trials Centre, Bristol Medical School, University of Bristol, Bristol, UK
| | - Scott Bevan
- Bristol Trials Centre, Bristol Medical School, University of Bristol, Bristol, UK
| | - Alistair D Hay
- Centre for Academic Primary Care, Bristol Medical School, University of Bristol, Bristol, UK
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Renton BJ, Shahid A, Nasir MN, Dixon P, Browne AM. An unusual cause of a postpartum headache. Br J Hosp Med (Lond) 2021; 82:1. [PMID: 33914643 DOI: 10.12968/hmed.2019.0331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- B J Renton
- Department of Medicine, Mayo University Hospital, Castlebar, Ireland
| | - A Shahid
- Department of Medicine, Mayo University Hospital, Castlebar, Ireland
| | - M N Nasir
- Department of Medicine, Mayo University Hospital, Castlebar, Ireland
| | - P Dixon
- Department of Medicine, Mayo University Hospital, Castlebar, Ireland
| | - A M Browne
- Department of Radiology, Mayo University Hospital, Castlebar, Ireland
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3
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Griffiths R, Babu S, Dixon P, Freeman N, Hurford D, Kelleher E, Moppett I, Ray D, Sahota O, Shields M, White S. Guideline for the management of hip fractures 2020: Guideline by the Association of Anaesthetists. Anaesthesia 2020; 76:225-237. [PMID: 33289066 DOI: 10.1111/anae.15291] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/27/2020] [Indexed: 12/26/2022]
Abstract
We convened a multidisciplinary Working Party on behalf of the Association of Anaesthetists to update the 2011 guidance on the peri-operative management of people with hip fracture. Importantly, these guidelines describe the core aims and principles of peri-operative management, recommending greater standardisation of anaesthetic practice as a component of multidisciplinary care. Although much of the 2011 guidance remains applicable to contemporary practice, new evidence and consensus inform the additional recommendations made in this document. Specific changes to the 2011 guidance relate to analgesia, medicolegal practice, risk assessment, bone cement implantation syndrome and regional review networks. Areas of controversy remain, and we discuss these in further detail, relating to the mode of anaesthesia, surgical delay, blood management and transfusion thresholds, echocardiography, anticoagulant and antiplatelet management and postoperative discharge destination. Finally, these guidelines provide links to supplemental online material that can be used at readers' institutions, key references and UK national guidance about the peri-operative care of people with hip and periprosthetic fractures during the COVID-19 pandemic.
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Affiliation(s)
- R Griffiths
- Department of Anaesthesia, Peterborough and Stamford Hospitals NHS Trust Peterborough, UK and Chair, Working Party, Association of Anaesthetists, UK
| | - S Babu
- Department of Anaesthesia, Warrington and Halton Hospitals NHS Trust, Warrington, UK
| | - P Dixon
- Department of Trauma and Orthopaedics, South Tyneside and Sunderland NHS Trust, Sunderland, UK and British Orthopaedic Association, Orthopaedic Trauma Society, UK
| | - N Freeman
- Department of Anaesthesia, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - D Hurford
- Department of Anaesthesia, Cwm Taf Morgannwg University Health Board and Chair, Welsh Frailty Fracture Network, UK, UK
| | - E Kelleher
- Department of Anaesthesia, University of Galway, Galway, Ireland
| | - I Moppett
- Division of Clinical Neuroscience, School of Medicine, University of Nottingham, UK.,Department of Anaesthesia, Nottingham University Hospitals, Nottingham, UK
| | - D Ray
- Department of Anaesthesia, Royal Infirmary Edinburgh and Honorary Clinical Senior Lecturer, University of Edinburgh, Edinburgh, UK
| | - O Sahota
- Department of Healthcare of Older People, Nottingham University Hospitals, Nottingham, UK and British Geriatrics Society, UK
| | - M Shields
- Department of Anaesthesia, Royal Hospitals, Belfast, UK
| | - S White
- Department of Anaesthesia, Brighton and Sussex University Hospitals NHS Trust, Brighton, UK
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4
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Hughes A, Harrison S, Dixon P, Dickson M, Davies A, Rice F, Davies N, Howe L. The wider consequences of obesity: estimated social and economic costs from Mendelian Randomization. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.1028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Obesity is a key public health issue worldwide. Accurate estimates of its full impacts on health, social, and economic outcomes are required, but are difficult to obtain due to bias from confounding and reverse causality (the impact of social and economic factors on obesity).
Methods
Using data from the UK Biobank and ALSPAC, we applied a genetic causal inference approach (Mendelian Randomization, MR) to estimate the impact of body mass index (BMI) on key social and economic outcomes. Because genetic variants are assigned before birth and cannot change, estimates from MR studies are less liable to confounding and reverse causation.
Results
Effects of higher BMI were often larger in MR than conventional (non-genetic) models, suggesting previous studies may have underestimated the impact of BMI. For example, in adolescents, MR models implied a standard deviation increase in BMI led to exam scores around 1/3 of a grade lower in all subjects at age 16, and 8.7% (CI: 1.8% to 16.1%) more school absence. In adults a 5kg/m2 increase in BMI corresponded, among other negative outcomes, to £2,778 less annual household income (CI: £1,864 to £3,693), less chance of owning one's home (-1.6%, CI: -2.4% to -0.8%), and higher chance of being lonely (2.4%, CI: 1.4% to 3.5%). At £21.22 (CI: £14.35 to £28.07) per person per marginal kg/m2 per year, MR estimates for inpatient hospital costs were around 40% higher than conventional estimates.
Conclusions
Findings from causal inference based on genetic variation indicate that high BMI has negative impacts on social and economic outcomes that may be larger than previously estimated. This evidence highlights the potential social and economic value of preventing high BMI across the life course.
Key messages
High BMI has considerable negative impacts not only for health, but for individuals’ education and socioeconomic outcomes, and overall health care costs. Previous attempts to quantify these effects may have underestimated BMI’s full impact.
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Affiliation(s)
- A Hughes
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - S Harrison
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - P Dixon
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - M Dickson
- Institute for Policy Research, University of Bath, Bath, UK
| | - A Davies
- Research and Evaluation Division, Knowledge Directorate, Public Health Wales, Cardiff, UK
| | - F Rice
- School of Medicine, University of Cardiff, Cardiff, UK
| | - N Davies
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - L Howe
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
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Dorey S, Gray L, Tootell A, Higgins R, Al-Islam S, Baxter H, Dixon P, Hogg P. Radiation protection value to the operator from augmented reality smart glasses in interventional fluoroscopy procedures using phantoms. Radiography (Lond) 2019; 25:301-307. [DOI: 10.1016/j.radi.2019.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 02/09/2019] [Accepted: 02/11/2019] [Indexed: 10/27/2022]
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van Leuteren RW, Hutten GJ, de Waal CG, Dixon P, van Kaam AH, de Jongh FH. Processing transcutaneous electromyography measurements of respiratory muscles, a review of analysis techniques. J Electromyogr Kinesiol 2019; 48:176-186. [PMID: 31401341 DOI: 10.1016/j.jelekin.2019.07.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/23/2019] [Accepted: 07/27/2019] [Indexed: 11/28/2022] Open
Abstract
Transcutaneous electromyography (tc-EMG) has been used to measure the electrical activity of respiratory muscles during inspiration in various studies. Processing the raw tc-EMG signal of these inspiratory muscles has shown to be difficult as baseline noise, cardiac interference, cross-talk and motion artefacts can influence the signal quality. In this review we will discuss the most important sources of signal noise in tc-EMG of respiratory muscles and the various techniques described to suppress or reduce this signal noise. Furthermore, we will elaborate on the options available to develop or improve an algorithm that can be used to guide the approach for analysis of tc-EMG signals of inspiratory muscles in future research.
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Affiliation(s)
- R W van Leuteren
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.
| | - G J Hutten
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands; Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands
| | - C G de Waal
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - P Dixon
- Vyaire Medical, Basingstoke, United Kingdom
| | - A H van Kaam
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands; Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, Vrije Universiteit, Amsterdam, the Netherlands
| | - F H de Jongh
- Department of Neonatology, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands; Faculty of Science and Technology, University of Twente, Enschede, the Netherlands
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Triolo TM, Fouts A, Pyle L, Yu L, Gottlieb PA, Steck AK, Greenbaum CJ, Atkinson M, Baidal D, Battaglia M, Becker D, Bingley P, Bosi E, Buckner J, Clements M, Colman P, DiMeglio L, Gitelman S, Goland R, Gottlieb P, Herold K, Knip M, Krischer J, Lernmark A, Moore W, Moran A, Muir A, Palmer J, Peakman M, Philipson L, Raskin P, Redondo M, Rodriguez H, Russell W, Spain L, Schatz D, Sosenko J, Wentworth J, Wherrett D, Wilson D, Winter W, Ziegler A, Anderson M, Antinozzi P, Benoist C, Blum J, Bourcier K, Chase P, Clare-Salzler M, Clynes R, Eisenbarth G, Fathman C, Grave G, Hering B, Insel R, Kaufman F, Kay T, Leschek E, Mahon J, Marks J, Nanto-Salonen K, Nepom G, Orban T, Parkman R, Pescovitz M, Peyman J, Pugliese A, Roep B, Roncarolo M, Savage P, Simell O, Sherwin R, Siegelman M, Skyler J, Steck A, Thomas J, Trucco M, Wagner J, Krischer JP, Leschek E, Rafkin L, Bourcier K, Cowie C, Foulkes M, Insel R, Krause-Steinrauf H, Lachin JM, Malozowski S, Peyman J, Ridge J, Savage P, Skyler JS, Zafonte SJ, Rafkin L, Sosenko JM, Kenyon NS, Santiago I, Krischer JP, Bundy B, Abbondondolo M, Dixit S, Pasha M, King K, Adcock H, Atterberry L, Fox K, Englert N, Mauras J, Permuy K, Sikes T, Adams T, Berhe B, Guendling L, McLennan L, Paganessi C, Murphy M, Draznin M, Kamboj S, Sheppard V, Lewis L, Coates W, Amado D, Moore G, Babar J, Bedard D, Brenson-Hughes J, Cernich M, Clements R, Duprau S, Goodman L, Hester L, Huerta-Saenz A, Asif I, Karmazin T, Letjen S, Raman D, Morin W, Bestermann E, Morawski J, White A, Brockmyer R, Bays S, Campbell A, Boonstra M, Stapleton N, Stone A, Donoho H, Everett H, Hensley M, Johnson C, Marshall N, Skirvin P, Taylor R, Williams L, Burroughs C, Ray C, Wolverton D, Nickels C, Dothard P, Speiser M, Pellizzari L, Bokor K, Izuora S, Abdelnour P, Cummings S, Cuthbertson D, Paynor M, Leahy M, Riedl S, Shockley R, Saad T, Briones S, Casella C, Herz K, Walsh J, Greening F, Deemer M, Hay S, Hunt N, Sikotra L, Simons D, Karounos R, Oremus L, Dye L, Myers D, Ballard W, Miers R, Eberhard C, Sparks K, Thraikill K, Edwards J, Fowlkes S, Kemp A, Morales L, Holland L, Johnson P, Paul A, Ghatak K, Fiske S, Phelen H, Leyland T, Henderson D, Brenner E, Oppenheimer I, Mamkin C, Moniz C, Clarson M, Lovell A, Peters V, Ford J, Ruelas D, Borut D, Burt M, Jordan S, Castilla P, Flores M, Ruiz L, Hanson J, Green-Blair R, Sheridan K, Garmeson J, Wintergerst G, Pierce A, Omoruyi M, Foster S, Kingery A, Lunsford I, Cervantes T, Parker P, Price J, Urben I, Guillette H, Doughty H, Haydock V, Parker P, Bergman S, Duncum C, Rodda A, Perelman R, Calendo C, Barrera E, Arce-Nunez Y, Geyer S, Martinez M, De la Portilla I, Cardenas L, Garrido M, Villar R, Lorini E, Calandra G, D’Annuzio K, Perri N, Minuto C, Hays B, Rebora R, Callegari O, Ali J, Kramer B, Auble S, Cabrera P, Donohoue R, Fiallo-Scharer M, Hessner P, Wolfgram A, Henderson C, Kansra N, Bettin R, McCuller A, Miller S, Accacha J, Corrigan E, Fiore R, Levine T, Mahoney C, Polychronakos V, Henry M, Gagne H, Starkman M, Fox D, Chin F, Melchionne L, Silverman I, Marshall L, Cerracchio J, Cruz A, Viswanathan J, Heyman K, Wilson S, Chalew S, Valley S, Layburn A, Lala P, Clesi M, Genet G, Uwaifo A, Charron T, Allerton W, Hsiao B, Cefalu L, Melendez-Ramirez R, Richards C, Alleyn E, Gustafson M, Lizanna J, Wahlen S, Aleiwe M, Hansen H, Wahlen C, Karges C, Levy A, Bonaccorso R, Rapaport Y, Tomer D, Chia M, Goldis L, Iazzetti M, Klein C, Levister L, Waldman E, Keaton N, Wallach M, Regelmann Z, Antal M, Aranda C, Reynholds A, Vinik P, Barlow M, Bourcier M, Nevoret J, Couper S, Kinderman A, Beresford N, Thalagne H, Roper J, Gibbons J, Hill S, Balleaut C, Brennan J, Ellis-Gage L, Fear T, Gray L, Law P, Jones C, McNerney L, Pointer N, Price K, Few D, Tomlinson N, Leech D, Wake C, Owens M, Burns J, Leinbach A, Wotherspoon A, Murray K, Short G, Curry S, Kelsey J, Lawson J, Porter S, Stevens E, Thomson S, Winship L, Liu S, Wynn E, Wiltshire J, Krebs P, Cresswell H, Faherty C, Ross L, Denvir J, Drew T, Randell P, Mansell S, Lloyd J, Bell S, Butler Y, Hooton H, Navarra A, Roper G, Babington L, Crate H, Cripps A, Ledlie C, Moulds R, Malloy J, Norton B, Petrova O, Silkstone C, Smith K, Ghai M, Murray V, Viswanathan M, Henegan O, Kawadry J, Olson L, Maddox K, Patterson T, Ahmad B, Flores D, Domek S, Domek K, Copeland M, George J, Less T, Davis M, Short A, Martin J, Dwarakanathan P, O’Donnell B, Boerner L, Larson M, Phillips M, Rendell K, Larson C, Smith K, Zebrowski L, Kuechenmeister M, Miller J, Thevarayapillai M, Daniels H, Speer N, Forghani R, Quintana C, Reh A, Bhangoo P, Desrosiers L, Ireland T, Misla C, Milliot E, Torres S, Wells J, Villar M, Yu D, Berry D, Cook J, Soder A, Powell M, Ng M, Morrison Z, Moore M, Haslam M, Lawson B, Bradley J, Courtney C, Richardson C, Watson E, Keely D, DeCurtis M, Vaccarcello-Cruz Z, Torres K, Muller S, Sandberg H, Hsiang B, Joy D, McCormick A, Powell H, Jones J, Bell S, Hargadon S, Hudson M, Kummer S, Nguyen T, Sauder E, Sutton K, Gensel R, Aguirre-Castaneda V, Benavides, Lopez D, Hemp S, Allen J, Stear E, Davis T, O’Donnell R, Jones A, Roberts J, Dart N, Paramalingam L, Levitt Katz N, Chaudhary K, Murphy S, Willi B, Schwartzman C, Kapadia D, Roberts A, Larson D, McClellan G, Shaibai L, Kelley G, Villa C, Kelley R, Diamond M, Kabbani T, Dajani F, Hoekstra M, Sadler K, Magorno J, Holst V, Chauhan N, Wilson P, Bononi M, Sperl A, Millward M, Eaton L, Dean J, Olshan H, Stavros T, Renna C, Milliard, Brodksy L, Bacon J, Quintos L, Topor S, Bialo B, Bancroft A, Soto W, Lagarde H, Tamura R, Lockemer T, Vanderploeg M, Ibrahim M, Huie V, Sanchez R, Edelen R, Marchiando J, Palmer T, Repas M, Wasson P, Wood K, Auker J, Culbertson T, Kieffer D, Voorhees T, Borgwardt L, DeRaad K, Eckert E, Isaacson H, Kuhn A, Carroll M, Xu P, Schubert G, Francis S, Hagan T, Le M, Penn E, Wickham C, Leyva K, Rivera J, Padilla I, Rodriguez N, Young K, Jospe J, Czyzyk B, Johnson U, Nadgir N, Marlen G, Prakasam C, Rieger N, Glaser E, Heiser B, Harris C, Alies P, Foster H, Slater K, Wheeler D, Donaldson M, Murray D, Hale R, Tragus D, Word J, Lynch L, Pankratz W, Badias F, Rogers R, Newfield S, Holland M, Hashiguchi M, Gottschalk A, Philis-Tsimikas R, Rosal S, Franklin S, Guardado N, Bohannon M, Baker A, Garcia T, Aguinaldo J, Phan V, Barraza D, Cohen J, Pinsker U, Khan J, Wiley L, Jovanovic P, Misra M, Bassi M, Wright D, Cohen K, Huang M, Skiles S, Maxcy C, Pihoker K, Cochrane J, Fosse S, Kearns M, Klingsheim N, Beam C, Wright L, Viles H, Smith S, Heller M, Cunningham A, Daniels L, Zeiden J, Field R, Walker K, Griffin L, Boulware D, Bartholow C, Erickson J, Howard B, Krabbenhoft C, Sandman A, Vanveldhuizen J, Wurlger A, Zimmerman K, Hanisch L, Davis-Keppen A, Bounmananh L, Cotterill J, Kirby M, Harris A, Schmidt C, Kishiyama C, Flores J, Milton W, Martin C, Whysham A, Yerka T, Bream S, Freels J, Hassing J, Webster R, Green P, Carter J, Galloway D, Hoelzer S, Roberts S, Said P, Sullivan H, Freeman D, Allen E, Reiter E, Feinberg C, Johnson L, Newhook D, Hagerty N, White L, Levandoski J, Kyllo M, Johnson C, Gough J, Benoit P, Iyer F, Diamond H, Hosono S, Jackman L, Barette P, Jones I, Sills S, Bzdick J, Bulger R, Ginem J, Weinstock I, Douek R, Andrews G, Modgill G, Gyorffy L, Robin N, Vaidya S, Crouch K, O’Brien C, Thompson N, Granger M, Thorne J, Blumer J, Kalic L, Klepek J, Paulett B, Rosolowski J, Horner M, Watkins J, Casey K, Carpenter C, Michelle Kieffer MH, Burns J, Horton C, Pritchard D, Soetaert A, Wynne C, Chin O, Molina C, Patel R, Senguttuvan M, Wheeler O, Lane P, Furet C, Steuhm D, Jelley S, Goudeau L, Chalmers D, Greer C, Panagiotopoulos D, Metzger D, Nguyen M, Horowitz M, Linton C, Christiansen E, Glades C, Morimoto M, Macarewich R, Norman K, Patin C, Vargas A, Barbanica A, Yu P, Vaidyanathan W, Nallamshetty L, Osborne R, Mehra S, Kaster S, Neace J, Horner G, Reeves C, Cordrey L, Marrs T, Miller S, Dowshen D, Oduah V, Doyle S, Walker D, Catte H, Dean M, Drury-Brown B, Hackman M, Lee S, Malkani K, Cullen K, Johnson P, Parrimon Y, Hampton M, McCarrell C, Curtis E, Paul, Zambrano Y, Paulus K, Pilger J, Ramiro J, Luvon Ritzie AQ, Sharma A, Shor A, Song X, Terry A, Weinberger J, Wootten M, Lachin JM, Foulkes M, Harding P, Krause-Steinrauf H, McDonough S, McGee PF, Owens Hess K, Phoebus D, Quinlan S, Raiden E, Batts E, Buddy C, Kirpatrick K, Ramey M, Shultz A, Webb C, Romesco M, Fradkin J, Leschek E, Spain L, Savage P, Aas S, Blumberg E, Beck G, Brillon D, Gubitosi-Klug R, Laffel L, Vigersky R, Wallace D, Braun J, Lernmark A, Lo B, Mitchell H, Naji A, Nerup J, Orchard T, Steffes M, Tsiatis A, Veatch R, Zinman B, Loechelt B, Baden L, Green M, Weinberg A, Marcovina S, Palmer JP, Weinberg A, Yu L, Babu S, Winter W, Eisenbarth GS, Bingley P, Clynes R, DiMeglio L, Eisenbarth G, Hays B, Leschek E, Marks J, Matheson D, Rafkin L, Rodriguez H, Spain L, Wilson D, Redondo M, Gomez D, McDonald A, Pena S, Pietropaolo M, Shippy K, Batts E, Brown T, Buckner J, Dove A, Hammond M, Hefty D, Klein J, Kuhns K, Letlau M, Lord S, McCulloch-Olson M, Miller L, Nepom G, Odegard J, Ramey M, Sachter E, St. Marie M, Stickney K, VanBuecken D, Vellek B, Webber C, Allen L, Bollyk J, Hilderman N, Ismail H, Lamola S, Sanda S, Vendettuoli H, Tridgell D, Monzavi R, Bock M, Fisher L, Halvorson M, Jeandron D, Kim M, Wood J, Geffner M, Kaufman F, Parkman R, Salazar C, Goland R, Clynes R, Cook S, Freeby M, Pat Gallagher M, Gandica R, Greenberg E, Kurland A, Pollak S, Wolk A, Chan M, Koplimae L, Levine E, Smith K, Trast J, DiMeglio L, Blum J, Evans-Molina C, Hufferd R, Jagielo B, Kruse C, Patrick V, Rigby M, Spall M, Swinney K, Terrell J, Christner L, Ford L, Lynch S, Menendez M, Merrill P, Pescovitz M, Rodriguez H, Alleyn C, Baidal D, Fay S, Gaglia J, Resnick B, Szubowicz S, Weir G, Benjamin R, Conboy D, deManbey A, Jackson R, Jalahej H, Orban T, Ricker A, Wolfsdorf J, Zhang HH, Wilson D, Aye T, Baker B, Barahona K, Buckingham B, Esrey K, Esrey T, Fathman G, Snyder R, Aneja B, Chatav M, Espinoza O, Frank E, Liu J, Perry J, Pyle R, Rigby A, Riley K, Soto A, Gitelman S, Adi S, Anderson M, Berhel A, Breen K, Fraser K, Gerard-Gonzalez A, Jossan P, Lustig R, Moassesfar S, Mugg A, Ng D, Prahalod P, Rangel-Lugo M, Sanda S, Tarkoff J, Torok C, Wesch R, Aslan I, Buchanan J, Cordier J, Hamilton C, Hawkins L, Ho T, Jain A, Ko K, Lee T, Phelps S, Rosenthal S, Sahakitrungruang T, Stehl L, Taylor L, Wertz M, Wong J, Philipson L, Briars R, Devine N, Littlejohn E, Grant T, Gottlieb P, Klingensmith G, Steck A, Alkanani A, Bautista K, Bedoy R, Blau A, Burke B, Cory L, Dang M, Fitzgerald-Miller L, Fouts A, Gage V, Garg S, Gesauldo P, Gutin R, Hayes C, Hoffman M, Ketchum K, Logsden-Sackett N, Maahs D, Messer L, Meyers L, Michels A, Peacock S, Rewers M, Rodriguez P, Sepulbeda F, Sippl R, Steck A, Taki I, Tran BK, Tran T, Wadwa RP, Zeitler P, Barker J, Barry S, Birks L, Bomsburger L, Bookert T, Briggs L, Burdick P, Cabrera R, Chase P, Cobry E, Conley A, Cook G, Daniels J, DiDomenico D, Eckert J, Ehler A, Eisenbarth G, Fain P, Fiallo-Scharer R, Frank N, Goettle H, Haarhues M, Harris S, Horton L, Hutton J, Jeffrrey J, Jenison R, Jones K, Kastelic W, King MA, Lehr D, Lungaro J, Mason K, Maurer H, Nguyen L, Proto A, Realsen J, Schmitt K, Schwartz M, Skovgaard S, Smith J, Vanderwel B, Voelmle M, Wagner R, Wallace A, Walravens P, Weiner L, Westerhoff B, Westfall E, Widmer K, Wright H, Schatz D, Abraham A, Atkinson M, Cintron M, Clare-Salzler M, Ferguson J, Haller M, Hosford J, Mancini D, Rohrs H, Silverstein J, Thomas J, Winter W, Cole G, Cook R, Coy R, Hicks E, Lewis N, Marks J, Pugliese A, Blaschke C, Matheson D, Pugliese A, Sanders-Branca N, Ray Arce LA, Cisneros M, Sabbag S, Moran A, Gibson C, Fife B, Hering B, Kwong C, Leschyshyn J, Nathan B, Pappenfus B, Street A, Boes MA, Peterson Eck S, Finney L, Albright Fischer T, Martin A, Jacqueline Muzamhindo C, Rhodes M, Smith J, Wagner J, Wood B, Becker D, Delallo K, Diaz A, Elnyczky B, Libman I, Pasek B, Riley K, Trucco M, Copemen B, Gwynn D, Toledo F, Rodriguez H, Bollepalli S, Diamond F, Eyth E, Henson D, Lenz A, Shulman D, Raskin P, Adhikari S, Dickson B, Dunnigan E, Lingvay I, Pruneda L, Ramos-Roman M, Raskin P, Rhee C, Richard J, Siegelman M, Sturges D, Sumpter K, White P, Alford M, Arthur J, Aviles-Santa ML, Cordova E, Davis R, Fernandez S, Fordan S, Hardin T, Jacobs A, Kaloyanova P, Lukacova-Zib I, Mirfakhraee S, Mohan A, Noto H, Smith O, Torres N, Wherrett D, Balmer D, Eisel L, Kovalakovska R, Mehan M, Sultan F, Ahenkorah B, Cevallos J, Razack N, Jo Ricci M, Rhode A, Srikandarajah M, Steger R, Russell WE, Black M, Brendle F, Brown A, Moore D, Pittel E, Robertson A, Shannon A, Thomas JW, Herold K, Feldman L, Sherwin R, Tamborlane W, Weinzimer S, Toppari J, Kallio T, Kärkkäinen M, Mäntymäki E, Niininen T, Nurmi B, Rajala P, Romo M, Suomenrinne S, Näntö-Salonen K, Simell O, Simell T, Bosi E, Battaglia M, Bianconi E, Bonfanti R, Grogan P, Laurenzi A, Martinenghi S, Meschi F, Pastore M, Falqui L, Teresa Muscato M, Viscardi M, Bingley P, Castleden H, Farthing N, Loud S, Matthews C, McGhee J, Morgan A, Pollitt J, Elliot-Jones R, Wheaton C, Knip M, Siljander H, Suomalainen H, Colman P, Healy F, Mesfin S, Redl L, Wentworth J, Willis J, Farley M, Harrison L, Perry C, Williams F, Mayo A, Paxton J, Thompson V, Volin L, Fenton C, Carr L, Lemon E, Swank M, Luidens M, Salgam M, Sharma V, Schade D, King C, Carano R, Heiden J, Means N, Holman L, Thomas I, Madrigal D, Muth T, Martin C, Plunkett C, Ramm C, Auchus R, Lane W, Avots E, Buford M, Hale C, Hoyle J, Lane B, Muir A, Shuler S, Raviele N, Ivie E, Jenkins M, Lindsley K, Hansen I, Fadoju D, Felner E, Bode B, Hosey R, Sax J, Jefferies C, Mannering S, Prentis R, She J, Stachura M, Hopkins D, Williams J, Steed L, Asatapova E, Nunez S, Knight S, Dixon P, Ching J, Donner T, Longnecker S, Abel K, Arcara K, Blackman S, Clark L, Cooke D, Plotnick L, Levin P, Bromberger L, Klein K, Sadurska K, Allen C, Michaud D, Snodgrass H, Burghen G, Chatha S, Clark C, Silverberg J, Wittmer C, Gardner J, LeBoeuf C, Bell P, McGlore O, Tennet H, Alba N, Carroll M, Baert L, Beaton H, Cordell E, Haynes A, Reed C, Lichter K, McCarthy P, McCarthy S, Monchamp T, Roach J, Manies S, Gunville F, Marosok L, Nelson T, Ackerman K, Rudolph J, Stewart M, McCormick K, May S, Falls T, Barrett T, Dale K, Makusha L, McTernana C, Penny-Thomas K, Sullivan K, Narendran P, Robbie J, Smith D, Christensen R, Koehler B, Royal C, Arthur T, Houser H, Renaldi J, Watsen S, Wu P, Lyons L, House B, Yu J, Holt H, Nation M, Vickers C, Watling R, Heptulla R, Trast J, Agarwal C, Newell D, Katikaneni R, Gardner C, Del A, Rio A, Logan H, Collier C, Rishton G, Whalley A, Ali S, Ramtoola T, Quattrin L, Mastrandea A, House M, Ecker C, Huang C, Gougeon J, Ho D, Pacuad D, Dunger J, May C, O’Brien C, Acerini B, Salgin A, Thankamony R, Williams J, Buse G, Fuller M, Duclos J, Tricome H, Brown D, Pittard D, Bowlby A, Blue T, Headley S, Bendre K, Lewis K, Sutphin C, Soloranzo J, Puskaric H, Madison M, Rincon M, Carlucci R, Shridharani B, Rusk E, Tessman D, Huffman H, Abrams B, Biederman M, Jones V, Leathers W, Brickman P, Petrie D, Zimmerman J, Howard L, Miller R, Alemzadeh D, Mihailescu R, Melgozza-Walker N, Abdulla C, Boucher-Berry D, Ize-Ludlow R, Levy C, Swenson, Brousell N, Crimmins D, Edler T, Weis C, Schultz D, Rogers D, Latham C, Mawhorter C, Switzer W, Spencer P, Konstantnopoulus S, Broder J, Klein L, Knight L, Szadek G, Welnick B, Thompson R, Hoffman A, Revell J, Cherko K, Carter E, Gilson J, Haines G, Arthur B, Bowen W, Zipf P, Graves R, Lozano D, Seiple K, Spicer A, Chang J, Fregosi J, Harbinson C, Paulson S, Stalters P, Wright D, Zlock A, Freeth J, Victory H, Maheshwari A, Maheshwari T, Holmstrom J, Bueno R, Arguello J, Ahern L, Noreika V, Watson S, Hourse P, Breyer C, Kissel Y, Nicholson M, Pfeifer S, Almazan J, Bajaj M, Quinn K, Funk J, McCance E, Moreno R, Veintimilla A, Wells J, Cook S, Trunnel J, Henske S, Desai K, Frizelis F, Khan R, Sjoberg K, Allen P, Manning G, Hendry B, Taylor S, Jones W, Strader M, Bencomo T, Bailey L, Bedolla C, Roldan C, Moudiotis B, Vaidya C, Anning S, Bunce S, Estcourt E, Folland E, Gordon C, Harrill J, Ireland J, Piper L, Scaife K, Sutton S, Wilkins M, Costelloe J, Palmer L, Casas C, Miller M, Burgard C, Erickson J, Hallanger-Johnson P, Clark W, Taylor A, Lafferty S, Gillett C, Nolan M, Pathak L, Sondrol T, Hjelle S, Hafner J, Kotrba R, Hendrickson A, Cemeroglu T, Symington M, Daniel Y, Appiagyei-Dankah D, Postellon M, Racine L, Kleis K, Barnes S, Godwin H, McCullough K, Shaheen G, Buck L, Noel M, Warren S, Weber S, Parker I, Gillespie B, Nelson C, Frost J, Amrhein E, Moreland A, Hayes J, Peggram J, Aisenberg M, Riordan J, Zasa E, Cummings K, Scott T, Pinto A, Mokashi K, McAssey E, Helden P, Hammond L, Dinning S, Rahman S, Ray C, Dimicri S, Guppy H, Nielsen C, Vogel C, Ariza L, Morales Y, Chang R, Gabbay L, Ambrocio L, Manley R, Nemery W, Charlton P, Smith L, Kerr B, Steindel-Kopp M, Alamaguer D, Liljenquist G, Browning T, Coughenour M, Sulk E, Tsalikan M, Tansey J, Cabbage N. Identical and Nonidentical Twins: Risk and Factors Involved in Development of Islet Autoimmunity and Type 1 Diabetes. Diabetes Care 2019; 42:192-199. [PMID: 30061316 PMCID: PMC6341285 DOI: 10.2337/dc18-0288] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Accepted: 06/28/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE There are variable reports of risk of concordance for progression to islet autoantibodies and type 1 diabetes in identical twins after one twin is diagnosed. We examined development of positive autoantibodies and type 1 diabetes and the effects of genetic factors and common environment on autoantibody positivity in identical twins, nonidentical twins, and full siblings. RESEARCH DESIGN AND METHODS Subjects from the TrialNet Pathway to Prevention Study (N = 48,026) were screened from 2004 to 2015 for islet autoantibodies (GAD antibody [GADA], insulinoma-associated antigen 2 [IA-2A], and autoantibodies against insulin [IAA]). Of these subjects, 17,226 (157 identical twins, 283 nonidentical twins, and 16,786 full siblings) were followed for autoantibody positivity or type 1 diabetes for a median of 2.1 years. RESULTS At screening, identical twins were more likely to have positive GADA, IA-2A, and IAA than nonidentical twins or full siblings (all P < 0.0001). Younger age, male sex, and genetic factors were significant factors for expression of IA-2A, IAA, one or more positive autoantibodies, and two or more positive autoantibodies (all P ≤ 0.03). Initially autoantibody-positive identical twins had a 69% risk of diabetes by 3 years compared with 1.5% for initially autoantibody-negative identical twins. In nonidentical twins, type 1 diabetes risk by 3 years was 72% for initially multiple autoantibody-positive, 13% for single autoantibody-positive, and 0% for initially autoantibody-negative nonidentical twins. Full siblings had a 3-year type 1 diabetes risk of 47% for multiple autoantibody-positive, 12% for single autoantibody-positive, and 0.5% for initially autoantibody-negative subjects. CONCLUSIONS Risk of type 1 diabetes at 3 years is high for initially multiple and single autoantibody-positive identical twins and multiple autoantibody-positive nonidentical twins. Genetic predisposition, age, and male sex are significant risk factors for development of positive autoantibodies in twins.
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Affiliation(s)
- Taylor M. Triolo
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Alexandra Fouts
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Laura Pyle
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Liping Yu
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Peter A. Gottlieb
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Andrea K. Steck
- Barbara Davis Center for Diabetes, University of Colorado School of Medicine, Aurora, CO
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P, Dinning L, Rahman S, Ray S, Dimicri C, Guppy S, Nielsen H, Vogel C, Ariza C, Morales L, Chang Y, Gabbay R, Ambrocio L, Manley L, Nemery R, Charlton W, Smith P, Kerr L, Steindel-Kopp B, Alamaguer M, Tabisola-Nuesca E, Pendersen A, Larson N, Cooper-Olviver H, Chan D, Fitz-Patrick D, Carreira T, Park Y, Ruhaak R, Liljenquist D. A Type 1 Diabetes Genetic Risk Score Predicts Progression of Islet Autoimmunity and Development of Type 1 Diabetes in Individuals at Risk. Diabetes Care 2018; 41:1887-1894. [PMID: 30002199 PMCID: PMC6105323 DOI: 10.2337/dc18-0087] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 06/06/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE We tested the ability of a type 1 diabetes (T1D) genetic risk score (GRS) to predict progression of islet autoimmunity and T1D in at-risk individuals. RESEARCH DESIGN AND METHODS We studied the 1,244 TrialNet Pathway to Prevention study participants (T1D patients' relatives without diabetes and with one or more positive autoantibodies) who were genotyped with Illumina ImmunoChip (median [range] age at initial autoantibody determination 11.1 years [1.2-51.8], 48% male, 80.5% non-Hispanic white, median follow-up 5.4 years). Of 291 participants with a single positive autoantibody at screening, 157 converted to multiple autoantibody positivity and 55 developed diabetes. Of 953 participants with multiple positive autoantibodies at screening, 419 developed diabetes. We calculated the T1D GRS from 30 T1D-associated single nucleotide polymorphisms. We used multivariable Cox regression models, time-dependent receiver operating characteristic curves, and area under the curve (AUC) measures to evaluate prognostic utility of T1D GRS, age, sex, Diabetes Prevention Trial-Type 1 (DPT-1) Risk Score, positive autoantibody number or type, HLA DR3/DR4-DQ8 status, and race/ethnicity. We used recursive partitioning analyses to identify cut points in continuous variables. RESULTS Higher T1D GRS significantly increased the rate of progression to T1D adjusting for DPT-1 Risk Score, age, number of positive autoantibodies, sex, and ethnicity (hazard ratio [HR] 1.29 for a 0.05 increase, 95% CI 1.06-1.6; P = 0.011). Progression to T1D was best predicted by a combined model with GRS, number of positive autoantibodies, DPT-1 Risk Score, and age (7-year time-integrated AUC = 0.79, 5-year AUC = 0.73). Higher GRS was significantly associated with increased progression rate from single to multiple positive autoantibodies after adjusting for age, autoantibody type, ethnicity, and sex (HR 2.27 for GRS >0.295, 95% CI 1.47-3.51; P = 0.0002). CONCLUSIONS The T1D GRS independently predicts progression to T1D and improves prediction along T1D stages in autoantibody-positive relatives.
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Affiliation(s)
- Maria J. Redondo
- Texas Children’s Hospital, Baylor College of Medicine, Houston, TX
| | | | - Andrea K. Steck
- Barbara Davis Center for Childhood Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Seth Sharp
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
| | - John M. Wentworth
- Walter and Eliza Hall Institute of Medical Research and Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Michael N. Weedon
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
| | | | | | | | | | - Richard A. Oram
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
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Ziso B, Dixon P, Marson AG. PO058 Epilepsy management in the elderly: lessons from nash. J Neurol Psychiatry 2017. [DOI: 10.1136/jnnp-2017-abn.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Scangarella-Oman N, Hossain M, Dixon P, Ingraham K, Min S, Tiffany C, Perry C, Raychaudhuri A, Dumont E, Huang J, I I I EH, Miller L. P2.38 Microbiological analysis from a phase ii study in adults evaluating single doses of gepotidacin (GSK2140944) in the treatment of uncomplicated urogenital gonorrhoea caused by neisseria gonorrhoeae. Clin Sci (Lond) 2017. [DOI: 10.1136/sextrans-2017-053264.214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Shimahara Y, Kurita J, Nishioka T, Kiryu I, Yuasa K, Sakai T, Oseko N, Sano M, Dixon P. Development of an improved RT-PCR for specific detection of spring viraemia of carp virus. J Fish Dis 2016; 39:269-275. [PMID: 25832786 DOI: 10.1111/jfd.12357] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 01/13/2015] [Accepted: 01/13/2015] [Indexed: 06/04/2023]
Abstract
Spring viraemia of carp (SVC) is a rhabdovirus infection, which has a significant economic impact in pond cultures of carp in Europe and western Independent States of the former Soviet Union. The causative agent of SVC, spring viraemia of carp virus (SVCV), has been divided into four subgroups, Ia, Ib, Ic and Id, on the basis of glycoprotein (G) protein gene sequences. In this study, a new primer set was designed from a G gene sequence of SVCV to identify the four subtypes of SVCV by reverse transcription polymerase chain reaction (RT-PCR). The specific PCR products of 369 bp were amplified from 15 SVCV isolates of all four subtypes. However, pike fry rhabdovirus (PFRV), which is antigenically related to SVCV, and other viruses antigenically related to SVCV and PFRV were not amplified. The four subtypes of SVCV were specifically amplified by the RT-PCR. Furthermore, the detection limit of the RT-PCR was 7.1 × 10(2) copies/reaction, and it was not influenced by the addition of RNA extracted from fish tissues. The RT-PCR will be applied not only to RNA extracted from viral suspensions, but also from fish tissue. It will contribute to rapid identification of SVCV in fish with clinical signs of SVC.
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Affiliation(s)
- Y Shimahara
- Nansei Main station, National Research Institute of Aquaculture, Fisheries Research Agency, Minami-Ise, Mie, Japan
| | - J Kurita
- Tamaki Laboratory, National Research Institute of Aquaculture, Fisheries Research Agency, Tamaki, Mie, Japan
| | - T Nishioka
- Kamiura Laboratory, National Research Institute of Aquaculture, Fisheries Research Agency, Tsuiura, Kamiura, Saiki, Oita, Japan
| | - I Kiryu
- Nansei Main station, National Research Institute of Aquaculture, Fisheries Research Agency, Minami-Ise, Mie, Japan
| | - K Yuasa
- Nansei Main station, National Research Institute of Aquaculture, Fisheries Research Agency, Minami-Ise, Mie, Japan
| | - T Sakai
- Tamaki Laboratory, National Research Institute of Aquaculture, Fisheries Research Agency, Tamaki, Mie, Japan
| | - N Oseko
- Hokkaido National Fisheries Research Institute, Fisheries Research Agency, Toyohira-ku, Sapporo-shi, Hokkaido, Japan
| | - M Sano
- Tokyo University of Marine Science and Technology, Tokyo, Japan
| | - P Dixon
- Cefas Weymouth Laboratory, Weymouth, Dorset, UK
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Chalder MJE, Wright CL, Morton KJP, Dixon P, Daykin AR, Jenkins S, Benger J, Calvert J, Shaw A, Metcalfe C, Hollingworth W, Purdy S. Study protocol for an evaluation of the effectiveness of 'care bundles' as a means of improving hospital care and reducing hospital readmission for patients with chronic obstructive pulmonary disease (COPD). BMC Pulm Med 2016; 16:35. [PMID: 26916196 PMCID: PMC4766609 DOI: 10.1186/s12890-016-0197-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 02/15/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chronic Obstructive Pulmonary Disease is one of the commonest respiratory diseases in the United Kingdom, accounting for 10% of unplanned hospital admissions each year. Nearly a third of these admitted patients are re-admitted to hospital within 28 days of discharge. Whilst there is a move within the NHS to ensure that people with long-term conditions receive more co-ordinated care, there is little research evidence to support an optimum approach to this in COPD. This study aims to evaluate the effectiveness of introducing standardised packages of care i.e. care bundles, for patients with acute exacerbations of COPD as a means of improving hospital care and reducing re-admissions. METHODS / DESIGN This mixed-methods evaluation will use a controlled before-and-after design to examine the effect of, and costs associated with, implementing care bundles for patients admitted to hospital with an acute exacerbation of COPD, compared with usual care. It will quantitatively measure a range of patient and organisational outcomes for two groups of hospitals - those who deliver care using COPD care bundles, and those who deliver care without the use of COPD care bundles. These care bundles may be provided for patients with COPD following admission, prior to discharge or at both points in the care pathway. The primary outcome will be re-admission to hospital within 28 days of discharge, although the study will additionally investigate a number of secondary outcomes including length of stay, total bed days, in-hospital mortality, costs of care and patient / carer experience. A series of nested qualitative case studies will explore in detail the context and process of care as well as the impact of COPD bundles on staff, patients and carers. DISCUSSION The results of the study will provide information about the effectiveness of care bundles as a way of managing in-hospital care for patients with an acute exacerbation of COPD. Given the number of unplanned hospital admissions for this patient group and their rate of subsequent re-admission, it is hoped that this evaluation will make a timely contribution to the evidence on care provision, to the benefit of patients, clinicians, managers and policy-makers. TRIAL REGISTRATION International Standard Randomised Controlled Trials - ISRCTN13022442 - 11 February 2015.
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Affiliation(s)
- M J E Chalder
- School of Social and Community Medicine, University of Bristol, Bristol, UK.
| | - C L Wright
- School of Social and Community Medicine, University of Bristol, Bristol, UK.
| | - K J P Morton
- School of Social and Community Medicine, University of Bristol, Bristol, UK.
| | - P Dixon
- School of Social and Community Medicine, University of Bristol, Bristol, UK.
| | - A R Daykin
- School of Social and Community Medicine, University of Bristol, Bristol, UK.
| | - S Jenkins
- Sue Jenkins Consulting, Taunton, UK.
| | - J Benger
- Faculty of Health and Applied Sciences, University of the West of England, Bristol, UK.
| | - J Calvert
- Southmead Hospital, North Bristol NHS Trust, Bristol, UK.
| | - A Shaw
- School of Social and Community Medicine, University of Bristol, Bristol, UK.
| | - C Metcalfe
- School of Social and Community Medicine, University of Bristol, Bristol, UK.
- Bristol Randomised Trials Collaboration, University of Bristol, Bristol, UK.
| | - W Hollingworth
- School of Social and Community Medicine, University of Bristol, Bristol, UK.
| | - S Purdy
- School of Social and Community Medicine, University of Bristol, Bristol, UK.
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Taylor SN, Lillis RA, Burnett J, Cammarata C, Foytich K, Dixon P, Siren J, Keller T, Tran H, Martin S, Cammarata S. P09.16 Isolation of neisseria meningitidis during a gonorrhoea treatment trial. Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Dixon P, Van Der Pol B, Swerdlow J, Cammarata S, Sun E, Hook EW. P05.04 Antimicrobial susceptibilities of persons with gonorrhoea at multiple sites are accurately reflected by urogenital specimens. Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Dixon P, Davies P, Hollingworth W, Stoddart M, MacGowan A. A systematic review of matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry compared to routine microbiological methods for the time taken to identify microbial organisms from positive blood cultures. Eur J Clin Microbiol Infect Dis 2015; 34:863-76. [DOI: 10.1007/s10096-015-2322-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 01/09/2015] [Indexed: 12/12/2022]
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Aghajanova L, Mahadevan S, Altmäe S, Stavreus-Evers A, Regan L, Sebire N, Dixon P, Fisher RA, Van den Veyver IB. No evidence for mutations in NLRP7, NLRP2 or KHDC3L in women with unexplained recurrent pregnancy loss or infertility. Hum Reprod 2014; 30:232-8. [PMID: 25376457 DOI: 10.1093/humrep/deu296] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
STUDY QUESTION Are mutations in NLRP2/7 (NACHT, LRR and PYD domains-containing protein 2/7) or KHDC3L (KH Domain Containing 3 Like) associated with recurrent pregnancy loss (RPL) or infertility? SUMMARY ANSWER We found no evidence for mutations in NLRP2/7 or KHDC3L in unexplained RPL or infertility. WHAT IS KNOWN ALREADY Mutations in NLRP7 and KHDC3L are known to cause biparental hydatidiform moles (BiHMs), a rare form of pregnancy loss. NLRP2, while not associated with the BiHM pathology, is known to cause recurrent Beckwith Weidemann Syndrome (BWS). STUDY DESIGN, SIZE, AND DURATION Ninety-four patients with well characterized, unexplained infertility were recruited over a 9-year period from three IVF clinics in Sweden. Blood samples from 24 patients with 3 or more consecutive miscarriages of unknown etiology were provided by the Recurrent Miscarriage Clinic at St Mary's Hospital, London, UK. PARTICIPANTS/MATERIALS, SETTING, METHODS Patients were recruited into both cohorts following extensive clinical studies. Genomic DNA was isolated from peripheral blood and subject to Sanger sequencing of NLRP2, NLRP7 and KHDC3L. Sequence electropherograms were analyzed by Sequencher v5.0 software and variants compared with those observed in the 1000 Genomes, single nucleotide polymorphism database (dbSNP) and HapMap databases. Functional effects of non-synonymous variants were predicted using Polyphen-2 and sorting intolerant from tolerant (SIFT). MAIN RESULTS AND THE ROLE OF CHANCE No disease-causing mutations were identified in NLRP2, NLRP7 and KHDC3L in our cohorts of unexplained infertility and RPL. LIMITATIONS, REASONS FOR CAUTION Due to the limited patient size, it is difficult to conclude if the low frequency single nucleotide polymorphisms observed in the present study are causative of the phenotype. The design of the present study therefore is only capable of detecting highly penetrant mutations. WIDER IMPLICATIONS OF THE FINDINGS The present study supports the hypothesis that mutations in NLRP7 and KHDC3L are specific for the BiHM phenotype and do not play a role in other adverse reproductive outcomes. Furthermore, to date, mutations in NLRP2 have only been associated with the imprinting disorder BWS in offspring and there is no evidence for a role in molar pregnancies, RPL or unexplained infertility. STUDY FUNDING/COMPETING INTERESTS This study was funded by the following sources: Estonian Ministry of Education and Research (Grant SF0180044s09), Enterprise Estonia (Grant EU30020); Mentored Resident research project (Department of Obstetrics and Gynecology, Baylor College of Medicine); Imperial NIHR Biomedical Research Centre; Grant Number C06RR029965 from the National Center for Research Resources (NCCR; NIH). No competing interests declared.
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Affiliation(s)
- L Aghajanova
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, San Francisco, CA 94143, USA
| | - S Mahadevan
- Interdepartmental Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA Department of Obstetrics and Gynecology, One Baylor Plaza, Mailstop BCM610, Baylor College of Medicine, Houston, TX 77030, USA Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Houston, TX 77030, USA
| | - S Altmäe
- Competence Centre on Reproductive Medicine and Biology, Tartu 50410, Estonia
| | - A Stavreus-Evers
- Department of Women's and Children's Health, Uppsala University, Uppsala 75105, Sweden
| | - L Regan
- Department of Obstetrics and Gynaecology, St Mary's Campus, Imperial College London, London W2 1PG, UK
| | - N Sebire
- Paediatric and Developmental Pathology, Institute of Child Health/Great Ormond Street Hospital, London WC1N 1EH, UK
| | - P Dixon
- Division of Women's Health, King's College London, Guy's Campus, London SE1 1UL, UK
| | - R A Fisher
- Trophoblastic Tumour Screening and Treatment Centre, Charing Cross Campus, Imperial College London, London W6 8RF, UK
| | - I B Van den Veyver
- Interdepartmental Program in Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, TX 77030, USA Department of Obstetrics and Gynecology, One Baylor Plaza, Mailstop BCM610, Baylor College of Medicine, Houston, TX 77030, USA Jan and Dan Duncan Neurological Research Institute at Texas Children's Hospital, Houston, TX 77030, USA Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA
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Hosni A, Huang S, De Almeida J, Au M, Dixon P, Chan B, Su S, Xu W, Cho J, Giuliani M, Hope A, Bayley A, Kim J, Ringash J, O’Sullivan B, Waldron J. IMRT With Selective Target Volume Approach in Head and Neck Squamous Cell Carcinoma of Unknown Primary Site. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Dayes I, Rumble R, Bowen J, Dixon P, Warde P. Intensity-modulated Radiotherapy in the Treatment of Breast Cancer. Clin Oncol (R Coll Radiol) 2012; 24:488-98. [DOI: 10.1016/j.clon.2012.05.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Revised: 04/13/2012] [Accepted: 05/11/2012] [Indexed: 02/09/2023]
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Bebarta V, Lairet J, Pitotti R, Dixon P, Valtier S, Tanen D. 432 Intravenous Hydroxocobalamin versus Intraosseous Hydroxocobalamin in the Treatment of Acute, Severe Cyanide Toxicity in a Validated Swine Model. Ann Emerg Med 2011. [DOI: 10.1016/j.annemergmed.2011.06.466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Oidtmann B, Joiner C, Stone D, Dodge M, Reese RA, Dixon P. Viral load of various tissues of rainbow trout challenged with viral haemorrhagic septicaemia virus at various stages of disease. Dis Aquat Organ 2011; 93:93-104. [PMID: 21381515 DOI: 10.3354/dao02298] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Market-sized rainbow trout Oncorhynchus mykiss were challenged by waterborne exposure to viral haemorrhagic septicaemia virus (VHSV isolate of genogroup Ia). Fish were sampled at 4 stages of infection (before onset of clinical signs, clinically affected fish, mortalities and survivors) and the viral load determined in (1) internal organs, (2) muscle tissue and (3) brain and gill tissue. Virus levels were determined by virus titration and real-time RT-PCR. VHSV was detected by either method in the majority of fish before onset of clinical signs and in the survivor group as well as in all fish in the clinically affected fish and mortality groups. Mean virus amounts per mg of tissue determined by virus titration (TCID50) or real-time RT-PCR (copy number) were > 10(4) in preclinical fish, > 10(3.8) in clinically affected fish, > 10(3.9) in mortalities and > 10(1.2) in survivors. Virus levels tended to be highest in the internal organs of subclinical and clinically affected fish and in brain and gill tissue of survivors. The results demonstrate that significant levels of VHSV can be found in tissues of rainbow trout that may be marketed for human consumption, which may have relevance for the biosecurity of VHS-free areas.
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Affiliation(s)
- B Oidtmann
- Cefas Weymouth Laboratory, Weymouth, Dorset DT4 8UB, UK.
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Oidtmann B, Joiner C, Reese RA, Stone D, Dodge M, Dixon P. Risks associated with commodity trade: transmission of viral haemorrhagic septicaemia virus (VHSV) to rainbow trout fry from VHSV-carrying tissue-homogenates. Transbound Emerg Dis 2011; 58:224-31. [PMID: 21223535 DOI: 10.1111/j.1865-1682.2010.01199.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Movements of commodity fish present a potential risk of transferring pathogens. Within a study to estimate the risk from imported rainbow trout Oncorhynchus mykiss carcases, fry were exposed to tissue homogenates from market size rainbow trout infected experimentally with viral haemorrhagic septicaemia (VHS) by waterborne exposure to VHS virus (VHSV, isolate of genotype Ia). Tissues were collected from fish that showed clinical signs and from recent mortalities. Homogenates of (i) internal organs, (ii) brain/gills and (iii) muscle tissue were prepared and added to tanks holding the fry. Virus transmission occurred from all tissues tested, causing high mortality of the fry. The results underline the potential risk of introduction of VHSV through the trade of fish products.
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Affiliation(s)
- B Oidtmann
- Cefas Weymouth Laboratory, Barrack Road, Weymouth, Dorset, UK.
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Drury PL, Ting R, Zannino D, Ehnholm C, Flack J, Whiting M, Fassett R, Ansquer JC, Dixon P, Davis TME, Pardy C, Colman P, Keech A. Estimated glomerular filtration rate and albuminuria are independent predictors of cardiovascular events and death in type 2 diabetes mellitus: the Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) study. Diabetologia 2011; 54:32-43. [PMID: 20668832 DOI: 10.1007/s00125-010-1854-1] [Citation(s) in RCA: 149] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Accepted: 06/18/2010] [Indexed: 12/24/2022]
Abstract
AIMS/HYPOTHESIS We investigated effects of renal function and albuminuria on cardiovascular outcomes in 9,795 low-risk patients with diabetes in the Fenofibrate Intervention and Event Lowering in Diabetes (FIELD) study. METHODS Baseline and year 2 renal status were examined in relation to clinical and biochemical characteristics. Outcomes included total cardiovascular disease (CVD), cardiac and non-cardiac death over 5 years. RESULTS Lower estimated GFR (eGFR) vs eGFR ≥90 ml min⁻¹ 1.73 m⁻² was a risk factor for total CVD events: (HR [95% CI] 1.14 [1.01-1.29] for eGFR 60-89 ml min⁻¹ 1.73 m⁻²; 1.59 [1.28-1.98] for eGFR 30-59 ml min⁻¹ 1.73 m⁻²; p < 0.001; adjusted for other characteristics). Albuminuria increased CVD risk, with microalbuminuria and macroalbuminuria increasing total CVD (HR 1.25 [1.01-1.54] and 1.19 [0.76-1.85], respectively; p = 0.001 for trend) when eGFR ≥90 ml min⁻¹ 1.73 m⁻². CVD risk was further modified by renal status changes over the first 2 years. In multivariable analysis, 77% of the effect of eGFR and 81% of the effect of albumin:creatinine ratio were accounted for by other variables, principally low HDL-cholesterol and elevated blood pressure. CONCLUSIONS/INTERPRETATION Reduced eGFR and albuminuria are independent risk factors for cardiovascular events and mortality rates in a low-risk population of mainly European ancestry. While their independent contributions to CVD risk appear small when other risk factors are considered, they remain excellent surrogate markers in clinical practice because they capture risk related to a number of other characteristics. Therefore, both should be considered when assessing prognosis and treatment strategies in patients with diabetes, and both should be included in risk models.
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Affiliation(s)
- P L Drury
- Auckland Diabetes Centre, New Zealand.
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Magasinski A, Dixon P, Hertzberg B, Kvit A, Ayala J, Yushin G. High-performance lithium-ion anodes using a hierarchical bottom-up approach. Nat Mater 2010; 9:353-8. [PMID: 20228818 DOI: 10.1038/nmat2725] [Citation(s) in RCA: 822] [Impact Index Per Article: 58.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Accepted: 01/10/2010] [Indexed: 05/18/2023]
Abstract
Si-based Li-ion battery anodes have recently received great attention, as they offer specific capacity an order of magnitude beyond that of conventional graphite. The applications of this transformative technology require synthesis routes capable of producing safe and easy-to-handle anode particles with low volume changes and stable performance during battery operation. Herein, we report a large-scale hierarchical bottom-up assembly route for the formation of Si on the nanoscale--containing rigid and robust spheres with irregular channels for rapid access of Li ions into the particle bulk. Large Si volume changes on Li insertion and extraction are accommodated by the particle's internal porosity. Reversible capacities over five times higher than that of the state-of-the-art anodes (1,950 mA h g(-1)) and stable performance are attained. The synthesis process is simple, low-cost, safe and broadly applicable, providing new avenues for the rational engineering of electrode materials with enhanced conductivity and power.
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Affiliation(s)
- A Magasinski
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30326, USA
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Collins N, Milne E, Hahn C, Dixon P. Correlation of the Havemeyer endoscopic laryngeal grading system with histopathological changes in equine Cricoarytenoideus dorsalis muscles. Ir Vet J 2009; 62:334-8. [PMID: 21851734 PMCID: PMC3113812 DOI: 10.1186/2046-0481-62-5-334] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The establishment of a single validated endoscopic laryngeal grading system for assessing recurrent laryngeal neuropathy (RLN) is desirable to facilitate direct comparisons between the findings of different clinical and research groups worldwide. The objective of this study was to assess the relationship between the Havemeyer endoscopic laryngeal grading system and histopathological changes consistent with RLN in the left cricoarytenoideus dorsalis (CAD) muscle of horses of different breeds with a full range of clinical severities of RLN, i.e., from normal endoscopic laryngeal function to complete laryngeal hemiplegia. Endoscopic grading of laryngeal function of 22 horses was performed using the Havemeyer endoscopic laryngeal grading system. A biopsy sample of the left CAD muscle was obtained from each horse, either at post mortem examination (n = 16), or during routine laryngoplasty surgery (n = 6). A semi-quantitative histopathological scoring system was used to grade the severity of histopathological lesions consistent with RLN in the left CAD muscle of each horse. A significant positive correlation (rs = 0.705, p < 0.001) was found between the Havemeyer grades and sub-grades of laryngeal function and the semi-quantitative assessment of histopathological lesions consistent with RLN in the left CAD muscle. However, a wide spread of muscle histopathological scores was obtained, particularly from horses with Havemeyer sub-grades II.1, III.1 and III.2. In conclusion, the Havemeyer endoscopic laryngeal grading system was found to broadly correlate with histopathological changes consistent with RLN in equine cricoarytenoideus dorsalis muscle.
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Affiliation(s)
- N Collins
- The Royal (Dick) School of Veterinary Sciences, University of Edinburgh, Easter Bush Veterinary Centre, Roslin, Midlothian, EH25 9RG, Scotland.
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Scott E, Dixon P, Voigt G, Whicker W. Choice and criteria for selection of sampling strategies in environmental radioactivity monitoring. Appl Radiat Isot 2008; 66:1575-81. [DOI: 10.1016/j.apradiso.2007.10.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2007] [Accepted: 10/08/2007] [Indexed: 11/30/2022]
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Klinge L, Dean A, Kress W, Dixon P, Charlton R, Müller J, Anderson L, Straub V, Barresi R, Lochmüller H, Bushby K. Late onset in dysferlinopathy widens the clinical spectrum. Neuromuscul Disord 2008; 18:288-90. [DOI: 10.1016/j.nmd.2008.01.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2007] [Revised: 12/18/2007] [Accepted: 01/10/2008] [Indexed: 10/22/2022]
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Rabeneck L, Rumble RB, Axler J, Smith A, Armstrong D, Vinden C, Belliveau P, Rhodes K, Zwaal C, Mai V, Dixon P. Cancer Care Ontario Colonoscopy Standards: standards and evidentiary base. Can J Gastroenterol 2007; 21 Suppl D:5D-24D. [PMID: 18026582 PMCID: PMC2802327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Colorectal cancer (CRC) is the most common cause of non-tobacco-related cancer deaths in Canadian men and women, accounting for 10% of all cancer deaths. An estimated 7800 men and women will be diagnosed with CRC, and 3250 will die from the disease in Ontario in 2007. Given that CRC incidence and mortality rates in Ontario are among the highest in the world, the best opportunity to reduce this burden of disease would be through screening. The present report describes the findings and recommendations of Cancer Care Ontario's Colonoscopy Standards Expert Panel, which was convened in March 2006 by the Program in Evidence-Based Care. The recommendations will form the basis of the quality assurance program for colonoscopy delivered in support of Ontario's CRC screening program.
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Klinge L, Dean A, Dixon P, Charlton R, Anderson L, Barresi R, Bushby K. G.P.4.06 Dysferlinopathy with very late onset and untypical clinical presentation. Neuromuscul Disord 2007. [DOI: 10.1016/j.nmd.2007.06.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Degia A, Meadows R, Johnsen S, Dixon P, Hindmarch I, Boyle J. Investigation into the suitability of a portable psychometric device to be used in the field: An illicit drugs field investigation. ACTA ACUST UNITED AC 2006; 13:242-6. [PMID: 16442832 DOI: 10.1016/j.jcfm.2005.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2005] [Indexed: 11/17/2022]
Abstract
RATIONALE Driving performance is easily disrupted as a direct consequence of the use of alcohol, licit and illicit drugs. The use of such drugs has a high degree of correlation with increased accident risk. Europe wide research projects into drugged driving have called for the development of a portable objective device capable of screening those impaired through drug use which can be used at the roadside. OBJECTIVE This study investigated the cognitive and psychomotor performance of a cohort of polydrug drug users in field conditions. Volunteers completed a psychometric test battery on a hand held device in music festival conditions. The test battery comprised a critical tracking task (CTT) and a sustained attention to response task (SART). Volunteers also took a breathanalyser and provided a saliva sample for a DOA screen. RESULTS On the CTT significance was observed for tracking error following response to a peripheral stimulus in the high alcohol (>80 mg/100 ml) illicit drug group (p=0.0090) and approached significance for the low alcohol (<80 mg/100 ml) illicit drug group (p=0.088). For the SART, incorrect presses to the target stimulus was impaired for volunteers in both the low (<80 mg/100 ml) alcohol illicit drug group (p=0.0080) and the high alcohol (>80 mg/100 ml) illicit drug group (p=0.0415). Discrimination analysis demonstrated that the impairment device was able to discriminate between those individuals who had consumed neither alcohol nor drugs (94.12%), those in the low alcohol drug group (46.67%) and those in the high alcohol drug group (60.00%). CONCLUSION It is possible to derive an impairment ratio. Further research will demonstrate whether this device could significantly contribute to drug driving detection and road traffic safety.
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Affiliation(s)
- A Degia
- HPRU Medical Research Centre, School of Biomedical and Molecular Sciences, University of Surrey, Guildford GU2 7XP, United Kingdom.
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. APPENDIX 2. UPPER CRITICAL VALUES OF THE STUDENT'S t-DISTRIBUTION. J ICRU 2006; 6:89. [PMID: 24170906 DOI: 10.1093/jicru/ndl019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. 3 general sampling concepts and principles. J ICRU 2006; 6:25-34. [PMID: 24170899 DOI: 10.1093/jicru/ndl008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. Appendix 1. 10,000 random digits. J ICRU 2006; 6:85-88. [PMID: 24170905 DOI: 10.1093/jicru/ndl018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. 7 general summary. J ICRU 2006; 6:77-80. [PMID: 24170903 DOI: 10.1093/jicru/ndl012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. 2 variability of environmental radioactivity and radiation. J ICRU 2006; 6:15-24. [PMID: 24170898 DOI: 10.1093/jicru/ndl007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. Sampling for radionuclides in the environment: contents. J ICRU 2006; 6:iii-vi. [PMID: 24170910 DOI: 10.1093/jicru/ndl003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. Quantities and symbols used in this report. J ICRU 2006; 6:91-93. [PMID: 24170907 DOI: 10.1093/jicru/ndl015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. Sampling for radionuclides in the environment. J ICRU 2006; 6:i. [PMID: 24170908 DOI: 10.1093/jicru/ndl001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. 5 sampling to estimate spatial pattern. J ICRU 2006; 6:49-64. [PMID: 24170901 DOI: 10.1093/jicru/ndl010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. 1 introduction. J ICRU 2006; 6:13. [PMID: 24170897 DOI: 10.1093/jicru/ndl006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. 4 estimating statistical quantities: mean, total, proportion, percentile, and ratio. J ICRU 2006; 6:35-48. [PMID: 24170900 DOI: 10.1093/jicru/ndl009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. Executive summary. J ICRU 2006; 6:11. [PMID: 24170896 DOI: 10.1093/jicru/ndl002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Whicker FW, Bunzl K, Dixon P, Scott EM, Sheppard SC, Voigt G. 6 TEMPORAL AND SPATIO-TEMPORAL SAMPLING PROBLEMS. ACTA ACUST UNITED AC 2006; 6:65-76. [DOI: 10.1093/jicru/ndl011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Isaac J, DiGeronimo RJ, Dixon P, Henson BM, Mustafa SB. 223 MECHANICAL STRETCH STIMULATES α-EPITHELIAL NA+ CHANNEL EXPRESSION IN MURINE LUNG EPITHELIAL CELLS: ROLE OF MAPKS. J Investig Med 2005. [DOI: 10.2310/6650.2005.00006.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Abstract
We have carried out a prospective study comparing the results at five years in patients older than 75 years of age undergoing hydroxyapatite-coated, cementless total knee replacement (TKR) with those who were younger. The Knee Society clinical rating scores were recorded before and after operation. Of 559 patients undergoing TKR, 135 were in the elderly age group. The knee scores at five years or more showed comparable results, with patients under 75 years of age reaching a score of 183 and those aged 75 years or over reaching 174. These differences were predominantly due to the functional component of the score. We conclude that elderly patients do just as well as the younger group using this prosthesis.
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Affiliation(s)
- P Dixon
- Australian Institute of Musculo-Skeletal Research, Sydney, Australia
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Tsao MN, Sultanem K, Chiu D, Copps F, Dixon P, Easton D, Haddad P, Hayter C, Hoegler D, Wong R. Supportive care management of brain metastases: what is known and what we need to know. Conference proceedings of the National Cancer Institute of Canada (NCIC) Workshop on Symptom Control in Radiation Oncology. Clin Oncol (R Coll Radiol) 2004; 15:429-34. [PMID: 14570093 DOI: 10.1016/s0936-6555(03)00220-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
OBJECTIVES To review the results of published randomised controlled trials in the treatment of brain metastases and, from the knowledge gained from these trials, to identify potential study questions. MATERIALS AND METHODS The literature was searched for randomised controlled trials that dealt with the management of brain metastases. Potential research questions were identified on the basis of the results of the literature review. RESULTS A number of research questions were identified. In the context of the NCIC Symptom Control Group, a trial of supportive care alone vs supportive care and whole-brain radiotherapy (WBRT) in a subset of patients with the diagnosis of brain metastases was deemed to be of highest priority. We discussed a number of issues relating to the feasibility of such a trial. CONCLUSIONS The optimal management of brain metastases remains elusive. Despite the results of numerous randomised controlled trials, many questions remain unanswered. The magnitude of benefit using WBRT above supportive care alone is uncertain. A trial of supportive care alone vs supportive care and WBRT may be successful once target population, feasibility and methodological issues are thoroughly solved.
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Affiliation(s)
- M N Tsao
- Toronto-Sunnybrook Regional Cancer Centre, University of Toronto, Toronto, Canada.
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Abstract
Infection is a potentially disastrous complication of total knee replacement (TKR). Retention of the prosthesis has been associated with high rates of persistent infection. Our study shows that in selected situations, arthroscopic debridement may allow retention of the prosthesis and eradication of the infection. However, the prosthesis must be stable, the surgical technique must be meticulous and specific antibiotics must be taken for a lengthy period. Arthroscopic debridement should be considered as an alternative to an open technique, or revision, for the infected TKR.
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Affiliation(s)
- P. Dixon
- The Australian Institute of Musculoskeletal Research, 286 Pacific Highway, Crows Nest, Sydney 2065, Australia
| | - E. N. Parish
- The Australian Institute of Musculoskeletal Research, 286 Pacific Highway, Crows Nest, Sydney 2065, Australia
| | - M. J. Cross
- The Australian Institute of Musculoskeletal Research, 286 Pacific Highway, Crows Nest, Sydney 2065, Australia
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48
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Dixon P, Parish EN, Cross MJ. Arthroscopic debridement in the treatment of the infected total knee replacement. J Bone Joint Surg Br 2004; 86:39-42. [PMID: 14765863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Infection is a potentially disastrous complication of total knee replacement (TKR). Retention of the prosthesis has been associated with high rates of persistent infection. Our study shows that in selected situations, arthroscopic debridement may allow retention of the prosthesis and eradication of the infection. However, the prosthesis must be stable, the surgical technique must be meticulous and specific antibiotics must be taken for a lengthy period. Arthroscopic debridement should be considered as an alternative to an open technique, or revision, for the infected TKR.
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Affiliation(s)
- P Dixon
- The Australian Institute of Musculoskeletal Research, 286 Pacific Highway, Crows Nest, Sydney 2065, Australia
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49
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Aubert B, Boutigny D, Gaillard JM, Hicheur A, Karyotakis Y, Lees JP, Robbe P, Tisserand V, Zghiche A, Palano A, Pompili A, Chen JC, Qi ND, Rong G, Wang P, Zhu YS, Eigen G, Ofte I, Stugu B, Abrams GS, Borgland AW, Breon AB, Brown DN, Button-Shafer J, Cahn RN, Charles E, Gill MS, Gritsan AV, Groysman Y, Jacobsen RG, Kadel RW, Kadyk J, Kerth LT, Kolomensky YG, Kral JF, LeClerc C, Levi ME, Lynch G, Mir LM, Oddone PJ, Orimoto TJ, Pripstein M, Roe NA, Romosan A, Ronan MT, Shelkov VG, Telnov AV, Wenzel WA, Harrison TJ, Hawkes CM, Knowles DJ, O'Neale SW, Penny RC, Watson AT, Watson NK, Deppermann T, Goetzen K, Koch H, Lewandowski B, Peters K, Schmuecker H, Steinke M, Barlow NR, Bhimji W, Boyd JT, Chevalier N, Clark PJ, Cottingham WN, Mackay C, Wilson FF, Abe K, Hearty C, Mattison TS, McKenna JA, Thiessen D, Jolly S, McKemey AK, Blinov VE, Bukin AD, Buzykaev AR, Golubev VB, Ivanchenko VN, Korol AA, Kravchenko EA, Onuchin AP, Serednyakov SI, Skovpen YI, Yushkov AN, Best D, Chao M, Kirkby D, Lankford AJ, Mandelkern M, McMahon S, Stoker DP, Arisaka K, Buchanan C, Chun S, MacFarlane DB, Prell S, Rahatlou S, Raven G, Sharma V, Berryhill JW, Campagnari C, Dahmes B, Hart PA, Kuznetsova N, Levy SL, Long O, Lu A, Mazur MA, Richman JD, Verkerke W, Beringer J, Eisner AM, Grothe M, Heusch CA, Lockman WS, Pulliam T, Schalk T, Schmitz RE, Schumm BA, Seiden A, Turri M, Walkowiak W, Williams DC, Wilson MG, Chen E, Dubois-Felsmann GP, Dvoretskii A, Hitlin DG, Porter FC, Ryd A, Samuel A, Yang S, Jayatilleke S, Mancinelli G, Meadows BT, Sokoloff MD, Barillari T, Bloom P, Ford WT, Nauenberg U, Olivas A, Rankin P, Roy J, Smith JG, van Hoek WC, Zhang L, Blouw J, Harton JL, Krishnamurthy M, Soffer A, Toki WH, Wilson RJ, Zhang J, Altenburg D, Brandt T, Brose J, Colberg T, Dickopp M, Dubitzky RS, Hauke A, Maly E, Müller-Pfefferkorn R, Otto S, Schubert KR, Schwierz R, Spaan B, Wilden L, Bernard D, Bonneaud GR, Brochard F, Cohen-Tanugi J, Ferrag S, T'Jampens S, Thiebaux C, Vasileiadis G, Verderi M, Anjomshoaa A, Bernet R, Khan A, Lavin D, Muheim F, Playfer S, Swain JE, Tinslay J, Falbo M, Borean C, Bozzi C, Piemontese L, Sarti A, Treadwell E, Anulli F, Baldini-Ferroli R, Calcaterra A, de Sangro R, Falciai D, Finocchiaro G, Patteri P, Peruzzi IM, Piccolo M, Zallo A, Bagnasco S, Buzzo A, Contri R, Crosetti G, Lo Vetere M, Macri M, Monge MR, Passaggio S, Pastore FC, Patrignani C, Robutti E, Santroni A, Tosi S, Morii M, Bartoldus R, Grenier GJ, Mallik U, Cochran J, Crawley HB, Lamsa J, Meyer WT, Rosenberg EI, Yi J, Davier M, Grosdidier G, Höcker A, Lacker HM, Laplace S, Le Diberder F, Lepeltier V, Lutz AM, Petersen TC, Plaszczynski S, Schune MH, Tantot L, Trincaz-Duvoid S, Wormser G, Bionta RM, Brigljević V, Lange DJ, Mugge M, van Bibber K, Wright DM, Bevan AJ, Fry JR, Gabathuler E, Gamet R, George M, Kay M, Payne DJ, Sloane RJ, Touramanis C, Aspinwall ML, Bowerman DA, Dauncey PD, Egede U, Eschrich I, Morton GW, Nash JA, Sanders P, Smith D, Taylor GP, Back JJ, Bellodi G, Dixon P, Harrison PF, Potter RJL, Shorthouse HW, Strother P, Vidal PB, Cowan G, Flaecher HU, George S, Green MG, Kurup A, Marker CE, McMahon TR, Ricciardi S, Salvatore F, Vaitsas G, Winter MA, Brown D, Davis CL, Allison J, Barlow RJ, Forti AC, Jackson F, Lafferty GD, Savvas N, Weatherall JH, Williams JC, Farbin A, Jawahery A, Lillard V, Roberts DA, Schieck JR, Blaylock G, Dallapiccola C, Flood KT, Hertzbach SS, Kofler R, Koptchev VB, Moore TB, Staengle H, Willocq S, Brau B, Cowan R, Sciolla G, Taylor F, Yamamoto RK, Milek M, Patel PM, Palombo F, Bauer JM, Cremaldi L, Eschenburg V, Kroeger R, Reidy J, Sanders DA, Summers DJ, Hast C, Taras P, Nicholson H, Cartaro C, Cavallo N, De Nardo G, Fabozzi F, Gatto C, Lista L, Paolucci P, Piccolo D, Sciacca C, LoSecco JM, Alsmiller JRG, Gabriel TA, Brau J, Frey R, Iwasaki M, Potter CT, Sinev NB, Strom D, Torrence E, Colecchia F, Dorigo A, Galeazzi F, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Voci C, Benayoun M, Briand H, Chauveau J, David P, de la Vaissière C, Del Buono L, Hamon O, Leruste P, Ocariz J, Pivk M, Roos L, Stark J, Manfredi PF, Re V, Speziali V, Gladney L, Guo QH, Panetta J, Angelini C, Batignani G, Bettarini S, Bondioli M, Bucci F, Calderini G, Campagna E, Carpinelli M, Forti F, Giorgi MA, Lusiani A, Marchiori G, Martinez-Vidal F, Morganti M, Neri N, Paoloni E, Rama M, Rizzo G, Sandrelli F, Triggiani G, Walsh J, Haire M, Judd D, Paick K, Turnbull L, Wagoner DE, Albert J, Elmer P, Lu C, Miftakov V, Olsen J, Schaffner SF, Smith AJS, Tumanov A, Varnes EW, Bellini F, Cavoto G, del Re D, Faccini R, Ferrarotto F, Ferroni F, Leonardi E, Mazzoni MA, Morganti S, Piredda G, Safai Tehrani F, Serra M, Voena C, Christ S, Wagner G, Waldi R, Adye T, De Groot N, Franek B, Geddes NI, Gopal GP, Xella SM, Aleksan R, Emery S, Gaidot A, Giraud PF, Hamel de Monchenault G, Kozanecki W, Langer M, London GW, Mayer B, Schott G, Serfass B, Vasseur G, Yeche C, Zito M, Purohit MV, Weidemann AW, Yumiceva FX, Adam I, Aston D, Berger N, Boyarski AM, Convery MR, Coupal DP, Dong D, Dorfan J, Dunwoodie W, Field RC, Glanzman T, Gowdy SJ, Grauges E, Haas T, Hadig T, Halyo V, Himel T, Hryn'ova T, Huffer ME, Innes WR, Jessop CP, Kelsey MH, Kim P, Kocian ML, Langenegger U, Leith DWGS, Luitz S, Luth V, Lynch HL, Marsiske H, Menke S, Messner R, Muller DR, O'Grady CP, Ozcan VE, Perazzo A, Perl M, Petrak S, Ratcliff BN, Robertson SH, Roodman A, Salnikov AA, Schietinger T, Schindler RH, Schwiening J, Simi G, Snyder A, Soha A, Spanier SM, Stelzer J, Su D, Sullivan MK, Tanaka HA, Va'vra J, Wagner SR, Weaver M, Weinstein AJR, Wisniewski WJ, Wright DH, Young CC, Burchat PR, Cheng CH, Meyer TI, Roat C, Henderson R, Bugg W, Cohn H, Izen JM, Kitayama I, Lou XC, Bianchi F, Bona M, Gamba D, Bosisio L, Della Ricca G, Dittongo S, Lanceri L, Poropat P, Vitale L, Vuagnin G, Panvini RS, Banerjee SW, Brown CM, Fortin D, Jackson PD, Kowalewski R, Roney JM, Band HR, Dasu S, Datta M, Eichenbaum AM, Hu H, Johnson JR, Liu R, Di Lodovico F, Mohapatra A, Pan Y, Prepost R, Scott IJ, Sekula SJ, von Wimmersperg-Toeller JH, Wu J, Wu SL, Yu Z, Neal H. Rare B decays into states containing a J/psi meson and a meson with s(-)s quark content. Phys Rev Lett 2003; 91:071801. [PMID: 12935005 DOI: 10.1103/physrevlett.91.071801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2003] [Indexed: 05/24/2023]
Abstract
We report a study of the B meson decays, B+ --> J/psiphiK+, B0 --> J/psiphiK(0)(S), B0 --> J/psiphi, B0 --> J/psieta, and B0 --> J/psieta' using 56 x 10(6) B(-)B events collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II e(+)e(-) asymmetric-energy storage ring. We measure the branching fractions B(B+ --> J/psiphiK+)=(4.4+/-1.4(stat)+/-0.5(syst))x 10(-5) and B(B0 --> J/psiphiK(0)(S))=(5.1+/-1.9(stat)+/-0.5(syst))x 10(-5), and set upper limits at 90% confidence level for the branching fractions B(B0 --> J/psiphi)<9.2 x 10(-6), B(B0 --> J/psieta)<2.7 x 10(-5), and B(B0 --> J/psieta')<6.3 x 10(-5).
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Affiliation(s)
- B Aubert
- Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France
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Aubert B, Barate R, Boutigny D, Gaillard JM, Hicheur A, Karyotakis Y, Lees JP, Robbe P, Tisserand V, Zghiche A, Palano A, Pompili A, Chen JC, Qi ND, Rong G, Wang P, Zhu YS, Eigen G, Ofte I, Stugu B, Abrams GS, Borgland AW, Breon AB, Brown DN, Button-Shafer J, Cahn RN, Charles E, Gill MS, Gritsan AV, Groysman Y, Jacobsen RG, Kadel RW, Kadyk J, Kerth LT, Kolomensky YG, Kral JF, LeClerc C, Levi ME, Lynch G, Mir LM, Oddone PJ, Orimoto TJ, Pripstein M, Roe NA, Romosan A, Ronan MT, Shelkov VG, Telnov AV, Wenzel WA, Harrison TJ, Hawkes CM, Knowles DJ, O'Neale SW, Penny RC, Watson AT, Watson NK, Deppermann T, Goetzen K, Koch H, Lewandowski B, Pelizaeus M, Peters K, Schmuecker H, Steinke M, Barlow NR, Bhimji W, Boyd JT, Chevalier N, Clark PJ, Cottingham WN, Mackay C, Wilson FF, Hearty C, Mattison TS, McKenna JA, Thiessen D, Jolly S, Kyberd P, McKemey AK, Blinov VE, Bukin AD, Buzykaev AR, Golubev VB, Ivanchenko VN, Korol AA, Kravchenko EA, Onuchin AP, Serednyakov SI, Skovpen YI, Yushkov AN, Best D, Chao M, Kirkby D, Lankford AJ, Mandelkern M, McMahon S, Mommsen RK, Stoker DP, Buchanan C, Hadavand HK, Hill EJ, MacFarlane DB, Paar HP, Rahatlou S, Raven G, Schwanke U, Sharma V, Berryhill JW, Campagnari C, Dahmes B, Kuznetsova N, Levy SL, Long O, Lu A, Mazur MA, Richman JD, Verkerke W, Beringer J, Eisner AM, Grothe M, Heusch CA, Lockman WS, Pulliam T, Schalk T, Schmitz RE, Schumm BA, Seiden A, Turri M, Walkowiak W, Williams DC, Wilson MG, Albert J, Chen E, Dubois-Felsmann GP, Dvoretskii A, Hitlin DG, Narsky I, Porter FC, Ryd A, Samuel A, Yang S, Jayatilleke S, Mancinelli G, Meadows BT, Sokoloff MD, Barillari T, Blanc F, Bloom P, Ford WT, Nauenberg U, Olivas A, Rankin P, Roy J, Smith JG, van Hoek WC, Zhang L, Harton JL, Hu T, Soffer A, Toki WH, Wilson RJ, Zhang J, Altenburg D, Brandt T, Brose J, Colberg T, Dickopp M, Dubitzky RS, Hauke A, Lacker HM, Maly E, Müller-Pfefferkorn R, Nogowski R, Otto S, Schubert KR, Schwierz R, Spaan B, Wilden L, Bernard D, Bonneaud GR, Brochard F, Cohen-Tanugi J, T'Jampens S, Thiebaux C, Vasileiadis G, Verderi M, Anjomshoaa A, Bernet R, Khan A, Lavin D, Muheim F, Playfer S, Swain JE, Tinslay J, Falbo M, Borean C, Bozzi C, Piemontese L, Sarti A, Treadwell E, Anulli F, Baldini-Ferroli R, Calcaterra A, de Sangro R, Falciai D, Finocchiaro G, Patteri P, Peruzzi IM, Piccolo M, Zallo A, Bagnasco S, Buzzo A, Contri R, Crosetti G, Lo Vetere M, Macri M, Monge MR, Passaggio S, Pastore FC, Patrignani C, Robutti E, Santroni A, Tosi S, Bailey S, Morii M, Grenier GJ, Mallik U, Cochran J, Crawley HB, Lamsa J, Meyer WT, Prell S, Rosenberg EI, Yi J, Davier M, Grosdidier G, Höcker A, Laplace S, Le Diberder F, Lepeltier V, Lutz AM, Petersen TC, Plaszczynski S, Schune MH, Tantot L, Wormser G, Bionta RM, Brigljević V, Lange DJ, van Bibber K, Wright DM, Bevan AJ, Fry JR, Gabathuler E, Gamet R, George M, Kay M, Payne DJ, Sloane RJ, Touramanis C, Aspinwall ML, Bowerman DA, Dauncey PD, Egede U, Eschrich I, Morton GW, Nash JA, Sanders P, Taylor GP, Back JJ, Bellodi G, Dixon P, Harrison PF, Shorthouse HW, Strother P, Vidal PB, Cowan G, Flaecher HU, George S, Green MG, Kurup A, Marker CE, McMahon TR, Ricciardi S, Salvatore F, Vaitsas G, Winter MA, Brown D, Davis CL, Allison J, Barlow RJ, Forti AC, Hart PA, Jackson F, Lafferty GD, Lyon AJ, Savvas N, Weatherall JH, Williams JC, Farbin A, Jawahery A, Lillard V, Roberts DA, Blaylock G, Dallapiccola C, Flood KT, Hertzbach SS, Kofler R, Koptchev VB, Moore TB, Staengle H, Willocq S, Cowan R, Sciolla G, Taylor F, Yamamoto RK, Milek M, Patel PM, Palombo F, Bauer JM, Cremaldi L, Eschenburg V, Kroeger R, Reidy J, Sanders DA, Summers DJ, Zhao H, Hast C, Taras P, Nicholson H, Cartaro C, Cavallo N, De Nardo G, Fabozzi F, Gatto C, Lista L, Paolucci P, Piccolo D, Sciacca C, LoSecco JM, Alsmiller JRG, Gabriel TA, Brau B, Brau J, Frey R, Iwasaki M, Potter CT, Sinev NB, Strom D, Torrence E, Colecchia F, Dorigo A, Galeazzi F, Margoni M, Morandin M, Posocco M, Rotondo M, Simonetto F, Stroili R, Tiozzo G, Voci C, Benayoun M, Briand H, Chauveau J, David P, de la Vaissière C, Del Buono L, Hamon O, Leruste P, Ocariz J, Pivk M, Roos L, Stark J, Manfredi PF, Re V, Speziali V, Gladney L, Guo QH, Panetta J, Angelini C, Batignani G, Bettarini S, Bondioli M, Bucci F, Calderini G, Campagna E, Carpinelli M, Forti F, Giorgi MA, Lusiani A, Marchiori G, Martinez-Vidal F, Morganti M, Neri N, Paoloni E, Rama M, Rizzo G, Sandrelli F, Triggiani G, Walsh J, Haire M, Judd D, Paick K, Turnbull L, Wagoner DE, Danielson N, Elmer P, Lu C, Miftakov V, Olsen J, Smith AJS, Tumanov A, Varnes EW, Bellini F, Cavoto G, del Re D, Faccini R, Ferrarotto F, Ferroni F, Gaspero M, Leonardi E, Mazzoni MA, Morganti S, Piredda G, Tehrani FS, Serra M, Voena C, Christ S, Wagner G, Waldi R, Adye T, De Groot N, Franek B, Geddes NI, Gopal GP, Olaiya EO, Xella SM, Aleksan R, Emery S, Gaidot A, Giraud PF, Hamel de Monchenault G, Kozanecki W, Langer M, London GW, Mayer B, Schott G, Serfass B, Vasseur G, Yeche C, Zito M, Purohit MV, Weidemann AW, Yumiceva FX, Abe K, Aston D, Bartoldus R, Berger N, Boyarski AM, Buchmueller OL, Convery MR, Coupal DP, Dong D, Dorfan J, Dunwoodie W, Field RC, Glanzman T, Gowdy SJ, Grauges-Pous E, Hadig T, Halyo V, Himel T, Hryn'ova T, Huffer ME, Innes WR, Jessop CP, Kelsey MH, Kim P, Kocian ML, Langenegger U, Leith DWGS, Luitz S, Luth V, Lynch HL, Marsiske H, Menke S, Messner R, Muller DR, O'Grady CP, Ozcan VE, Perazzo A, Perl M, Petrak S, Ratcliff BN, Robertson SH, Roodman A, Salnikov AA, Schietinger T, Schindler RH, Schwiening J, Simi G, Snyder A, Soha A, Stelzer J, Su D, Sullivan MK, Tanaka HA, Va'vra J, Wagner SR, Weaver M, Weinstein AJR, Wisniewski WJ, Wright DH, Young CC, Burchat PR, Cheng CH, Meyer TI, Roat C, Bugg W, Krishnamurthy M, Spanier SM, Izen JM, Kitayama I, Lou XC, Bianchi F, Bona M, Gamba D, Bosisio L, Della Ricca G, Dittongo S, Lanceri L, Poropat P, Vitale L, Vuagnin G, Henderson R, Panvini RS, Banerjee S, Brown CM, Fortin D, Jackson PD, Kowalewski R, Roney JM, Band HR, Dasu S, Datta M, Eichenbaum AM, Hu H, Johnson JR, Liu R, Di Lodovico F, Mohapatra AK, Pan Y, Prepost R, Sekula SJ, von Wimmersperg-Toeller JH, Wu J, Wu SL, Yu Z, Neal H. Measurement of the Cabibbo-Kobayashi-Maskawa matrix element V(ub) with B-->rhoenu decays. Phys Rev Lett 2003; 90:181801. [PMID: 12785997 DOI: 10.1103/physrevlett.90.181801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2002] [Indexed: 05/24/2023]
Abstract
We present a measurement of the branching fraction for the rare decays B-->rhoenu and extract a value for the magnitude of V(ub), one of the smallest elements of the Cabibbo-Kobayashi-Maskawa quark-mixing matrix. The results are given for five different calculations of form factors used to para-metrize the hadronic current in semileptonic decays. Using a sample of 55 x 10(6) BB meson pairs recorded with the BABAR detector at the PEP-II e(+)e(-) storage ring, we obtain B(B0-->rho(-)e(+)nu)=(3.29+/-0.42+/-0.47+/-0.55) x 10(-4) and |V(ub)|=(3.64+/-0.22+/-0.25(+0.39)(-0.56)) x 10(-3), where the uncertainties are statistical, systematic, and theoretical, respectively.
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Affiliation(s)
- B Aubert
- Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France
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