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Tamari R, Chung S, Devlin S, Jakubowski A, Papadopoulos E, Perales M, Ponce D, Goldberg J, Barker J, Sauter C, Koehne G, Young J, Giralt S, Castro-Malaspina H. P-219 T cell depleted (TCD) allogeneic hematopoietic stem cell transplant for older patients with advanced MDS and AML evolved from MDS. Leuk Res 2013. [DOI: 10.1016/s0145-2126(13)70266-2] [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: 11/15/2022]
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Kurien M, Hopper AD, Barker J, Peerally MF, Fielding J, Sanders DS. Is research declining amongst gastroenterology trainees in the United Kingdom? Clin Med (Lond) 2013; 13:118-9. [PMID: 23472519 PMCID: PMC5873694 DOI: 10.7861/clinmedicine.13-1-118a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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103
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Yeung KS, Qiu Z, Yin Z, Trehan A, Fang H, Pearce B, Yang Z, Zadjura L, D’Arienzo CJ, Riccardi K, Shi PY, Spicer TP, Gong YF, Browning MR, Hansel S, Santone K, Barker J, Coulter T, Lin PF, Meanwell NA, Kadow JF. Inhibitors of HIV-1 attachment. Part 8: The effect of C7-heteroaryl substitution on the potency, and in vitro and in vivo profiles of indole-based inhibitors. Bioorg Med Chem Lett 2013. [DOI: 10.1016/j.bmcl.2012.10.117] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Potter S, Ward J, Cawthorn S, Holcombe C, Warr R, Wilson S, Tillett R, Weiler-Mithoff E, Winters Z, Barker J, Oates C, Harcourt D, Brookes S, Blazeby J. Abstract P4-17-03: Towards the standardisation of outcome reporting in reconstructive breast surgery: Initial results of the BRAVO (Breast Reconstruction and Valid Outcome) Study–A multicentre consensus process to develop a core outcome set for reconstructive breast surgery. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p4-17-03] [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: 11/16/2022]
Abstract
Abstract
Introduction: Appropriate outcome selection is essential if research is to guide decision-making for patients, professionals and policy makers. Systematic reviews evaluating the clinical, cosmetic and patient-reported outcomes of breast reconstruction, however, have demonstrated marked heterogeneity of outcome reporting such that results from individual studies cannot be compared or combined. Standardising end-points by developing and using core outcome sets - an agreed minimum set of outcomes that should be measured and reported in all research and audit studies – is one way by which outcome reporting may be improved. We therefore report the initial results of the BRAVO (Breast Reconstruction and Valid Outcomes) Study which aims to use a scientifically rigorous Delphi consensus process to develop a core outcome set for reconstructive breast surgery.
Methods: The Delphi process involves the sequential completion of questionnaires to allow stakeholder opinions to be synthesised using item responses to prioritise outcome domains.
The questionnaire was developed from a long list of 148 outcomes generated from literature reviews and qualitative work with stakeholders. The outcomes were categorised into 34 domains in six categories (short-term complications; late complications; symptoms; psychosocial issues; practical issues and cosmesis) and each domain operationalised.
Key stakeholders were identified as patients, surgeons, specialist nurses and psychologists and participants were sampled purposively to ensure a breadth of perspectives. Each participant was sent a questionnaire and asked to prioritise the outcomes on a nine-point likert scale from 1(not important) to 9(extremely important).
The number of respondents in each group rating each outcome as not important(scores 1–3); equivocal(scores 4–6) or very important(score 7–9) were calculated for each item and compared between groups. The proportions of respondents rating each item as very important(score 7–9) was used to rank the items.
Results: 213 of the 430 questionnaires were returned(126/274 patients and 87/156 professionals) giving a response rate of 49.5%.
Patient participants had a median age of 53.4 years(range 34–76) and had undergone a full range of reconstructive procedures. The professional group included 39 breast surgeons, 20 plastic surgeons and 18 clinical nurse specialists.
There was agreement between 7 of the 10 outcomes that each group rated most highly. Items with consensus included patient-reported cosmesis, cosmetic satisfaction and early complications. Patients, but not professionals, considered generic complications such as bleeding to be important while professionals valued psychosocial issues such as self-esteem more highly than patients.
Conclusions: Patients and professionals prioritise similar outcomes, but areas of discrepancy with regard to complications and psychosocial outcomes remain. A further Delphi round asking participants to re-prioritise outcomes and a consensus meeting to ratify the final decisions will be necessary to determine a final core outcome set for reconstructive breast surgery.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P4-17-03.
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Affiliation(s)
- S Potter
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - J Ward
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - S Cawthorn
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - C Holcombe
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - R Warr
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - S Wilson
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - R Tillett
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - E Weiler-Mithoff
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - Z Winters
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - J Barker
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - C Oates
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - D Harcourt
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - S Brookes
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
| | - J Blazeby
- University of Bristol, United Kingdom; North Bristol NHS Trust, Bristol, United Kingdom; Linda McCartney Breast Centre, Royal Liverpool and Broadgreen University Hospitals NHS Trust, Liverpool, United Kingdom; NHS Greater Glasgow and Clyde, Glasgow, United Kingdom; University of the West of England, Bristol, United Kingdom
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105
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Reich K, Puig L, Luger T, Lambert J, Chimenti S, Girolomoni G, Nicolas JF, Kragballe K, Mistry S, Bergmans P, Thompson G, Barker J, Paul C. Effet à long terme de l’ustekinumab sur la qualité de vie chez des patients atteints de psoriasis modéré à sévère après transition depuis le méthotrexate : résultats à un an de l’étude TRANSIT. Ann Dermatol Venereol 2012. [DOI: 10.1016/j.annder.2012.10.258] [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: 10/27/2022]
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106
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Barker J, Barr S, Bittner J, Bromfield D, Goode A, Lee D, Simmons M, Gold J. Dynamic and static expressions of emotion are recognized with equal efficiency. J Vis 2012. [DOI: 10.1167/12.9.966] [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: 11/24/2022] Open
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107
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Salar Amoli H, Barker J. New approaches for the separation and determination of americium in soil samples using short column chromatography and alpha spectroscopy. J Radioanal Nucl Chem 2012. [DOI: 10.1007/s10967-012-1846-3] [Citation(s) in RCA: 4] [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] [Indexed: 10/28/2022]
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108
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109
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Ostler TA, Barker J, Evans RFL, Chantrell RW, Atxitia U, Chubykalo-Fesenko O, El Moussaoui S, Le Guyader L, Mengotti E, Heyderman LJ, Nolting F, Tsukamoto A, Itoh A, Afanasiev D, Ivanov BA, Kalashnikova AM, Vahaplar K, Mentink J, Kirilyuk A, Rasing T, Kimel AV. Ultrafast heating as a sufficient stimulus for magnetization reversal in a ferrimagnet. Nat Commun 2012; 3:666. [PMID: 22314362 DOI: 10.1038/ncomms1666] [Citation(s) in RCA: 138] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Accepted: 01/05/2012] [Indexed: 11/09/2022] Open
Abstract
The question of how, and how fast, magnetization can be reversed is a topic of great practical interest for the manipulation and storage of magnetic information. It is generally accepted that magnetization reversal should be driven by a stimulus represented by time-non-invariant vectors such as a magnetic field, spin-polarized electric current, or cross-product of two oscillating electric fields. However, until now it has been generally assumed that heating alone, not represented as a vector at all, cannot result in a deterministic reversal of magnetization, although it may assist this process. Here we show numerically and demonstrate experimentally a novel mechanism of deterministic magnetization reversal in a ferrimagnet driven by an ultrafast heating of the medium resulting from the absorption of a sub-picosecond laser pulse without the presence of a magnetic field.
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Affiliation(s)
- T A Ostler
- Department of Physics, University of York, York YO10 5DD, UK.
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110
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Barker J, Hoffmann M, Wozel G, Ortonne JP, Zheng H, van Hoogstraten H, Reich K. Efficacy and safety of infliximab vs. methotrexate in patients with moderate-to-severe plaque psoriasis: results of an open-label, active-controlled, randomized trial (RESTORE1). Br J Dermatol 2012; 165:1109-17. [PMID: 21910713 DOI: 10.1111/j.1365-2133.2011.10615.x] [Citation(s) in RCA: 138] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Infliximab is indicated for treatment of moderate-to-severe plaque psoriasis in adults whose disease cannot be controlled with other systemic therapies, including methotrexate (MTX). To date, no studies have directly compared the efficacy and safety of infliximab and MTX. OBJECTIVES To compare the efficacy and safety of infliximab vs. MTX in adults with moderate-to-severe plaque psoriasis. METHODS MTX-naïve patients (n = 868) were randomized 3:1 to receive infliximab 5 mg kg⁻¹ at weeks 0, 2, 6, 14 and 22 or MTX 15 mg weekly with a dose increase to 20 mg weekly at week 6 if the Psoriasis Area and Severity Index (PASI) response was < 25%. At week 16, patients with < PASI 50 response could switch treatment groups. The primary efficacy endpoint was PASI 75 response at week 16. Major secondary efficacy endpoints were PASI 75 response at week 26, and the proportion of patients achieving a Physician's Global Assessment (PGA) score of cleared (0) or minimal (1) at weeks 16 and 26. Others included Dermatology Life Quality Index, 36-Item Short Form Health Survey, and PGA, PASI 50, PASI 75 and PASI 90 responses over time. RESULTS The primary endpoint was achieved by a significantly greater proportion of infliximab-treated patients (508/653, 78%) than MTX-treated patients (90/215, 42%; P < 0·001). Key secondary endpoints also were achieved by a greater proportion of infliximab-treated patients. Similar responses were observed at week 26 in patients who switched from MTX to infliximab at week 16. Overall adverse event (AE) incidence was comparable between groups, but incidence of serious and severe AEs was slightly higher in the infliximab group. CONCLUSIONS Infliximab was well tolerated and more efficacious than MTX in patients with moderate-to-severe plaque psoriasis. Infliximab also was efficacious in patients who failed MTX and switched to infliximab.
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Affiliation(s)
- J Barker
- St John's Institute of Dermatology, King's College London, London, UK
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111
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Quiniou JB, Paul C, Puig L, Luger T, Lambert J, Clementi S, Girolomoni G, Nicolas JF, Kragballe K, Rizova E, Mistry S, Barker J, Reich K. L’ustekinumab est bien toléré et efficace chez les patients atteints de psoriasis dont la réponse au méthotrexate est insuffisante : résultats de la semaine 12 de l’étude TRANSIT. Ann Dermatol Venereol 2011. [DOI: 10.1016/j.annder.2011.10.263] [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: 12/01/2022]
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112
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Nijjer SS, Banerjee G, Barker J, Banerjee S, Connolly S, Fox KF. 4 A rational approach to raised troponins on a hyperacute stroke unit: coping with the impact on cardiology services. Heart 2011. [DOI: 10.1136/heartjnl-2011-300198.4] [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: 11/04/2022]
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113
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Radu I, Vahaplar K, Stamm C, Kachel T, Pontius N, Dürr HA, Ostler TA, Barker J, Evans RFL, Chantrell RW, Tsukamoto A, Itoh A, Kirilyuk A, Rasing T, Kimel AV. Transient ferromagnetic-like state mediating ultrafast reversal of antiferromagnetically coupled spins. Nature 2011; 472:205-8. [PMID: 21451521 DOI: 10.1038/nature09901] [Citation(s) in RCA: 682] [Impact Index Per Article: 52.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Accepted: 02/01/2011] [Indexed: 11/09/2022]
Abstract
Ferromagnetic or antiferromagnetic spin ordering is governed by the exchange interaction, the strongest force in magnetism. Understanding spin dynamics in magnetic materials is an issue of crucial importance for progress in information processing and recording technology. Usually the dynamics are studied by observing the collective response of exchange-coupled spins, that is, spin resonances, after an external perturbation by a pulse of magnetic field, current or light. The periods of the corresponding resonances range from one nanosecond for ferromagnets down to one picosecond for antiferromagnets. However, virtually nothing is known about the behaviour of spins in a magnetic material after being excited on a timescale faster than that corresponding to the exchange interaction (10-100 fs), that is, in a non-adiabatic way. Here we use the element-specific technique X-ray magnetic circular dichroism to study spin reversal in GdFeCo that is optically excited on a timescale pertinent to the characteristic time of the exchange interaction between Gd and Fe spins. We unexpectedly find that the ultrafast spin reversal in this material, where spins are coupled antiferromagnetically, occurs by way of a transient ferromagnetic-like state. Following the optical excitation, the net magnetizations of the Gd and Fe sublattices rapidly collapse, switch their direction and rebuild their net magnetic moments at substantially different timescales; the net magnetic moment of the Gd sublattice is found to reverse within 1.5 picoseconds, which is substantially slower than the Fe reversal time of 300 femtoseconds. Consequently, a transient state characterized by a temporary parallel alignment of the net Gd and Fe moments emerges, despite their ground-state antiferromagnetic coupling. These surprising observations, supported by atomistic simulations, provide a concept for the possibility of manipulating magnetic order on the timescale of the exchange interaction.
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Affiliation(s)
- I Radu
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands.
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114
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Saidi MY, Olsen II, Koksbang R, Barker J, Pynenburg R, West K, Zachau-Christiansen B, Skaarup S. Properties of LiV308 Cathode Materials Prepared from Gels by Spray-Drying. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-369-201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractLiV308 powder has been prepared on a large scale by spray drying ofan aqueous gel. The material was further dehydrated at 150 and 350ºC. These materials were characterized by TGA, XRD and electrochemical methods. Materials dried at 150 and 350ºC, showed an unusual high reversible capacity, close to 4 Li per formula unit, and cycle well. The material dried at 350ºC is very similar to the crystalline LiV308 prepared by conventional high temperature synthesis.
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115
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Weissmüller J, McMichael RD, Barker J, Brown HJ, Erb U, Shull RD. Magnetic Microstructure of a Nanocrystalline Ferromagnet - Micromagnetic Model and Small-Angle Neutron Scattering. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-457-231] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTWe report on a combined theoretical and experimental study of the magnetic microstructure of a single component, single phase, Pore-free nanocrystalline ferromagnetic material. From the equations of micro-magnetics we conclude that the magnetic microstructure is the convolution product of an anisotropy field microstructure and of a response function with a correlation length lH that depends on the applied field Ha. We derive equations for small angle neutron scattering by such structures, and present experimental scattering data for electrodeposited nanocrystalline Ni, the first where for a wide range of Ha the dominant scattering contribution is from the purely magnetic microstructure, not from nuclear or magnetic contrast at pores or second phases. The variation of the scattering cross section with Ha is in excellent agreement with the theory, indicating that the underlying changes in the magnetic microstructure with Ha are not displacements of domain walls, but changes in lH and hence in the magnetic response to an entirely stationary anisotropy field microstructure. At 20K the anisotropy fields are dominated by magnetocrystalline anisotropy, but at 300K the perturbation is from a much stronger interaction which maintains some moments aligned antiparallel to the field direction at Ha as high as 1.4MA/m (18kOe).
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116
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Barker J, Horn EJ, Lebwohl M, Warren RB, Nast A, Rosenberg W, Smith C. Assessment and management of methotrexate hepatotoxicity in psoriasis patients: report from a consensus conference to evaluate current practice and identify key questions toward optimizing methotrexate use in the clinic. J Eur Acad Dermatol Venereol 2010; 25:758-64. [PMID: 21198946 DOI: 10.1111/j.1468-3083.2010.03932.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Experts in psoriasis, hepatology, pharmacokinetics and pharmacogenetics convened to discuss the safety and monitoring of methotrexate with respect to hepatotoxicity when used in the treatment of psoriasis. Methotrexate is an efficacious and cost-effective treatment for psoriasis, but is associated with significant safety issues, particularly relating to hepatotoxicity. Current British, Dutch, German, EU and US guidelines for baseline evaluations, monitoring and prevention of hepatotoxicity in patients with psoriasis receiving methotrexate were evaluated. Liver safety monitoring is currently reliant upon multiple methods, including biopsy, serological tests for biomarkers such as type III procollagen amino terminal propeptide (PIIINP), and liver function tests based on liver enzymes. Monitoring of patients receiving long-term therapy is expected to be improved by the utilization of serum biomarkers currently in development such as the Enhanced Liver Fibrosis (ELF) panel and other non-invasive tests of hepatic architecture, such as fibroelastography, microbubbles and magnetic resonance imaging. Appropriate studies to determine optimal dosing to maximize efficacy and minimize toxicity, potentially utilizing pharmacogenetic principles, are clearly needed. Key questions for future research are identified including needs for optimal screening and monitoring, identification of appropriate biomarkers, assessment of relationships between dosing and safety, utility of liver biopsy, optimal dosing regimens (including route of administration), methods to measure methotrexate levels in blood, and use of methotrexate as a standardized active comparator in trials of experimental drugs used to treat psoriasis.
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Affiliation(s)
- J Barker
- St John's Institute of Dermatology, Division of Genetics and Molecular Medicine, Kings College, London, UK.
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117
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Aidman E, Petroczi A, Hussain I, Deshmukh N, Nepusz T, Uvacsek M, Toth M, Barker J, Naughton D. Beyond self-report in doping: Validating declared substance use in sport with hair sample analysis. J Sci Med Sport 2010. [DOI: 10.1016/j.jsams.2010.10.502] [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: 10/18/2022]
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118
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Flohr C, England K, Radulovic S, McLean WHI, Campbel LE, Barker J, Perkin M, Lack G. Filaggrin loss-of-function mutations are associated with early-onset eczema, eczema severity and transepidermal water loss at 3 months of age. Br J Dermatol 2010; 163:1333-6. [PMID: 21137118 DOI: 10.1111/j.1365-2133.2010.10068.x] [Citation(s) in RCA: 165] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Filaggrin loss-of-function (FLG) mutations are associated with eczema and skin barrier impairment, but it is unclear whether skin barrier impairment precedes phenotypic eczema in FLG mutation carriers. OBJECTIVES To study the association between FLG mutations, skin barrier impairment and clinical eczema at 3 months of age. METHODS A total of 88 infants were examined for eczema. Disease severity was determined by the SCORAD eczema severity score. Transepidermal water loss (TEWL) was measured on unaffected forearm skin. Venous blood samples were screened for the four most common FLG mutations found in the U.K. white population (R501X, 2282del4, R2447X and S3247X). Median SCORAD and TEWL measurements in children with and without eczema and FLG mutations were compared. RESULTS Thirty-three per cent (29/88) of children had clinical eczema. Median SCORAD was 10·6 (range 3·5-31·0). TEWL (g m⁻² h⁻¹) was higher in children with eczema compared with unaffected infants (median TEWL 14·24 vs. 11·24, P < 0·001). Higher TEWL was associated with more severe disease (r = 0·59, P < 0·001, median TEWL, SCORAD < 15, 13·1 vs. 29·6, SCORAD ≥ 15, P = 0·029). Clinically dry skin was associated with higher TEWL, even in the absence of eczema (median TEWL 17·55 vs. 11·08, P = 0·008). Seventeen per cent (15/88) of children carried at least one FLG mutation. FLG mutation carriers were significantly more likely to have clinically dry skin, even in the absence of eczema [odds ratio (OR) 8·50, 95% confidence interval (CI) 1·09-66·58, P = 0·042]. FLG mutation carriers were also more likely to have eczema by 3 months of age (OR 4·26, 95% CI 1·34-13·57, P = 0·014). FLG mutations were significantly associated with higher median TEWL (all children, FLG 'yes' 21·59 vs. FLG 'no' 11·24, P < 0·001), even without clinical eczema (FLG 'yes' 15·99 vs. FLG 'no' 10·82, P = 0·01). CONCLUSIONS By the age of 3 months, FLG mutations are associated with an eczema phenotype, dry skin and TEWL. The observation that TEWL is elevated in unaffected FLG mutation carriers suggests that skin barrier impairment precedes clinical eczema.
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Affiliation(s)
- C Flohr
- Department of Children's Allergies, MRC ⁄Asthma UK Centre in Allergic Mechanisms of Asthma, King’s College London, London, UK.
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Nedzi L, Sumer B, Myers L, Truelson J, Hughes R, Young G, Barker J, Yao M, Choy H. Phase I Study of Nab-paclitaxel, Cisplatin and Cetuximab with Concurrent Radiation Therapy for Local-regionally Advanced Head and Neck Squamous Cell Carcinoma (HNSCC). Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1034] [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: 11/29/2022]
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120
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Carter D, Patton G, Barker J, Bellairs E, Hartman S, Minor I, Shivnani A. National Development and Application of Radiation Oncology Specific, Evidence-Based Guidelines. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1134] [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: 10/19/2022]
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121
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Kerkhof PVD, Barker J, Griffiths CEM, Menter A, Leonardi C, Young M, Kemeny L, Pincelli C, Bachelez H, Katsambas A, Ståhle M, Horn EJ, Sterry W. Improving clinical trial design in psoriasis: Perspectives from the global dermatology community. J DERMATOL TREAT 2010; 22:187-93. [DOI: 10.3109/09546634.2010.487888] [Citation(s) in RCA: 4] [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] [Indexed: 11/13/2022]
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Burnett T, Barker J. THE ESTABLISHMENT OF DAY ACTIVITY CENTRES FOR EX-PSYCHIATRIC HOSTEL PATIENTS PERTH, WESTERN AUSTRALIA. Aust Occup Ther J 2010. [DOI: 10.1111/j.1440-1630.1976.tb01055.x] [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: 11/28/2022]
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Barker J, Kahari VM, Parks WC, Ranki A. Ulpu Saarialho-Kere (1960–2009). J Invest Dermatol 2010. [DOI: 10.1038/jid.2009.422] [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: 11/09/2022]
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Doubrovina E, Oflaz-Sozmen B, Kernan N, Young J, Abramson S, Barker J, Boulad F, Castro-Malaspina H, Teruya-Feldstein J, Filippa D, Jakubowski A, Papadopoulos E, Prockop S, Scaradavou A, Small T, O'Reilly R. Adoptive Transfer Of EBV Specific T-Cells For Treatment Of Primary And Rituxan Resistant EBV Lymphomas Following Allogeneic Stem Cell Transplants (HSCT): Clinical, Viral And Immunologic Corelates. Biol Blood Marrow Transplant 2010. [DOI: 10.1016/j.bbmt.2009.12.205] [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: 10/19/2022]
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Wong P, Muanza T, Reynard E, Barker J, Robert K, Sultanem K. Use of 3D-ultrasound in the Detection of Breast Tumor Bed Displacement during Radiotherapy. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.455] [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: 10/20/2022]
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Amigues I, Cohen N, Chung D, Seo SK, Plescia C, Jakubowski A, Barker J, Papanicolaou GA. Hepatic safety of voriconazole after allogeneic hematopoietic stem cell transplantation. Biol Blood Marrow Transplant 2009; 16:46-52. [PMID: 20053331 DOI: 10.1016/j.bbmt.2009.08.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2009] [Accepted: 08/24/2009] [Indexed: 11/27/2022]
Abstract
Voriconazole is increasingly used in allogeneic hematopoietic stem cell transplantation (HSCT) for prophylaxis and treatment of fungal infections. Hepatic dysfunction is common in patients undergoing HSCT and may have an impact on the clinical decision to institute voriconazole. We conducted a retrospective review of all adult and pediatric HSCT recipients who received >2 consecutive doses of voriconazole between January 2005 and February 2008. Clinical hepatotoxicity was defined as the subjective attribution of liver enzyme elevation (even a mild one) to hepatotoxicity because of voriconazole by the treating physician and leading to discontinuation of voriconazole. Biochemical hepatotoxicity was defined as an elevation in one or more liver enzymes to >3 times the upper limit of normal or >3 times the baseline value if abnormal at baseline. Liver enzymes assessed included aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, and total bilirubin. Simple and multiple logistic regressions were used to define the risks for hepatic dysfunction. The Wilcoxon signed-rank test was used to assess the differences in liver function test values before, during, and after the use of voriconazole. Sixty-eight of 200 patients (34%) developed hepatotoxicity while on voriconazole. The median duration of voriconazole therapy was 72 days (range, 1-804 days). Biochemical hepatotoxicity occurred in 51 patients (75%); clinical hepatotoxicity, in 17 patients (25%). Thirty-five (51%) of the patients with hepatotoxicity required discontinuation of therapy. In simple logistic regression, acute graft-versus-host disease (GVHD) was a risk factor for hepatotoxicity, and receipt of a T-cell depleted allograft was protective. In multiple logistic regression, acute GVHD (P = .002) remained significant. There were no cases of liver failure or death attributed to voriconazole. In this cohort of patients undergoing allogeneic HSCT, the rate of hepatotoxicity while on voriconazole was 34%. In general, the hepatic dysfunction was mild and reversible. Voriconazole therapy with monitoring appears to be reasonably safe for use in HSCT recipients at high risk for invasive fungal infections.
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Affiliation(s)
- I Amigues
- Department of Medicine, Service of Infectious Disease, Memorial Sloan Kettering Cancer Center, New York, New York 10021, USA
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Pathirana D, Ormerod AD, Saiag P, Smith C, Spuls PI, Nast A, Barker J, Bos JD, Burmester GR, Chimenti S, Dubertret L, Eberlein B, Erdmann R, Ferguson J, Girolomoni G, Gisondi P, Giunta A, Griffiths C, Hönigsmann H, Hussain M, Jobling R, Karvonen SL, Kemeny L, Kopp I, Leonardi C, Maccarone M, Menter A, Mrowietz U, Naldi L, Nijsten T, Ortonne JP, Orzechowski HD, Rantanen T, Reich K, Reytan N, Richards H, Thio HB, van de Kerkhof P, Rzany B. European S3-Guidelines on the systemic treatment of psoriasis vulgaris. J Eur Acad Dermatol Venereol 2009; 23 Suppl 2:1-70. [DOI: 10.1111/j.1468-3083.2009.03389.x] [Citation(s) in RCA: 467] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Pathirana D, Ormerod AD, Saiag P, Smith C, Spuls PI, Nast A, Barker J, Bos JD, Burmester GR, Chimenti S, Dubertret L, Eberlein B, Erdmann R, Ferguson J, Girolomoni G, Gisondi P, Giunta A, Griffiths C, Hönigsmann H, Hussain M, Jobling R, Karvonen SL, Kemeny L, Kopp I, Leonardi C, Maccarone M, Menter A, Mrowietz U, Naldi L, Nijsten T, Ortonne JP, Orzechowski HD, Rantanen T, Reich K, Reytan N, Richards H, Thio HB, van de Kerkhof P, Rzany B. European S3-guidelines on the systemic treatment of psoriasis vulgaris. J Eur Acad Dermatol Venereol 2009. [PMID: 19712190 DOI: 10.1111/j.1468-3083.2009.03389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Of the 131 studies on monotherapy or combination therapy assessed, 56 studies on the different forms of phototherapy fulfilled the criteria for inclusion in the guidelines. Approximately three-quarters of all patients treated with phototherapy attained at least a PASI 75 response after 4 to 6 weeks, and clearance was frequently achieved (levels of evidence 2 and 3). Phototherapy represents a safe and very effective treatment option for moderate to severe forms of psoriasis vulgaris. The onset of clinical effects occurs within 2 weeks. Of the unwanted side effects, UV erythema from overexposure is by far the most common and is observed frequently. With repeated or long-term use, the consequences of high, cumulative UV doses (such as premature aging of the skin) must be taken into consideration. In addition, carcinogenic risk is associated with oral PUVA and is probable for local PUVA and UVB. The practicability of the therapy is limited by spatial, financial, human, and time constraints on the part of the physician, as well as by the amount of time required by the patient. From the perspective of the cost-bearing institution, phototherapy has a good cost-benefit ratio. However, the potentially significant costs for, and time required of, the patient must be considered.
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Maloney SL, Sullivan DC, Suchting S, Herbert JMJ, Rabai EM, Nagy Z, Barker J, Sundar S, Bicknell R. Induction of thrombospondin-1 partially mediates the anti-angiogenic activity of dexrazoxane. Br J Cancer 2009; 101:957-66. [PMID: 19738618 PMCID: PMC2743367 DOI: 10.1038/sj.bjc.6605203] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [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: 12/12/2022] Open
Abstract
Background: Considerable interest lies in the identification of novel anti-angiogenic compounds for cancer therapy. We have investigated whether dexrazoxane has anti-angiogenic properties and if so, the mechanism of the inhibition. Methods: The phenotypic effects of dexrazoxane on endothelial cell behaviour was investigated both in vitro using human umbilical vein endothelial cells (HUVECs) in cell proliferation, migration, cell cycle and aortic ring assays; and in vivo using the mouse angiogenesis subcutaneous sponge assay. Custom angiogenesis pathway microarrays were used to identify differentially expressed genes in endothelial cells after treatment with dexrazoxane vs a control. The differentially expressed genes were validated using real-time RT–PCR and western blotting; and the functional effect of one induced gene was confirmed using siRNA technology. Results: Treatment of endothelial cells with dexrazoxane resulted in a dose–response inhibition of cell growth lasting for up to 5 days after a single dose of the drug. Dexrazoxane was inhibitory in the aortic ring tube forming assay and strongly anti-angiogenic in vivo in the rodent subcutaneous sponge model. The anti-angiogenic effect in the sponge was seen after systemic injection into the tail vein as well as after direct injection of dexrazoxane into the sponge. Treatment of microvascular endothelial cells in vitro with subtoxic doses of dexrazoxane stimulated thrombospondin-1 (THBS-1) secretion. Knockdown of THBS-1 with siRNA removed the angiogenesis inhibition effect of dexrazoxane, which is consistent with the anti-angiogenic and vascular normalising properties of the drug being principally mediated by THBS-1. Conclusion: We show that dexrazoxane administered in small repeated doses is strongly anti-angiogenic and that this activity is mediated by induction of the anti-angiogenic THBS-1 in endothelial cells.
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Affiliation(s)
- S L Maloney
- Cancer Research UK Angiogenesis Group, Institute for Biomedical Research, College of Medicine and Dentistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
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Luger TA, Barker J, Lambert J, Yang S, Robertson D, Foehl J, Molta CT, Boggs R. Sustained improvement in joint pain and nail symptoms with etanercept therapy in patients with moderate-to-severe psoriasis. J Eur Acad Dermatol Venereol 2009; 23:896-904. [DOI: 10.1111/j.1468-3083.2009.03211.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Affiliation(s)
- Frank O Nestle
- St. John's Institute of Dermatology, Federation of Clinical Immunology Societies Centre of Excellence at King's College London and Guy's and St. Thomas' Foundation Trust, London, United Kingdom.
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Barker J, Kumar A, Stanton W, Bath-Hextall FJ. The needs and experiences of people with a diagnosis of skin cancer. JBI Libr Syst Rev 2009; 7:1-9. [PMID: 27819986 DOI: 10.11124/01938924-200907161-00009] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- J Barker
- Dr Fiona Bath-Hextall: Reader in Evidence-Based Health Care, School of Nursing and Centre of Evidence Based Dermatology, University of Nottingham. Dr Janet Barker: Associate Professor, School of Nursing, University of Nottingham Wendy Stanton: Faculty Team Leader, Medical Library, University of Nottingham Arun Kumar: Research Fellow, School of Nursing, University of Nottingham
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Bijlmakers MJ, Barker J, Trembath R, Capon F. F.11. Preliminary Characterization of the RNF114/ZNF313 Psoriasis Susceptibility Gene. Clin Immunol 2009. [DOI: 10.1016/j.clim.2009.03.279] [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: 11/30/2022]
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137
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Royer JF, Schratl P, Carrillo JJ, Jupp R, Barker J, Weyman-Jones C, Beri R, Sargent C, Schmidt JA, Lang-Loidolt D, Heinemann A. A novel antagonist of prostaglandin D2 blocks the locomotion of eosinophils and basophils. Eur J Clin Invest 2008; 38:663-71. [PMID: 18837743 DOI: 10.1111/j.1365-2362.2008.01989.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [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: 01/14/2023]
Abstract
BACKGROUND Chemoattractant receptor homologous molecule of Th2 cells (CRTH2) has been shown to mediate the chemotaxis of eosinophils, basophils and Th2-type T lymphocytes. The major mast cell product prostaglandin (PG) D(2) is considered to be the principal ligand of CRTH2. MATERIALS AND METHODS We developed a novel CRTH2 antagonist, AZ11665362 [2,5-dimethyl-3-(8-methylquinolin-4-yl)-1H-indole-1-yl]acetic acid, and characterized its efficacy in binding assay in HEK293 cells, eosinophil and basophil shape change assay and migration assay, platelet aggregation and eosinophil release from guinea pig bone marrow. The effects were compared with ramatroban, the sole CRTH2 antagonist clinically available to date. RESULTS AZ11665362 bound with high affinity to human and guinea pig CRTH2 expressed in HEK293 cells and antagonized eosinophil and basophil shape change responses to PGD(2). AZ11665362 was without effect on the PGD(2)-induced inhibition of platelet aggregation. In contrast, AZ11665362 effectively inhibited the in vitro migration of human eosinophils and basophils towards PGD(2). The release of eosinophils from the isolated perfused hind limb of the guinea pig was potently stimulated by PGD(2), and this effect was prevented by AZ11665362. In all assays tested, AZ11665362 was at least 10 times more potent than ramatroban. CONCLUSIONS AZ11665362 is a potent CRTH2 antagonist that is capable of blocking the migration of eosinophils and basophils, and the rapid mobilization of eosinophils from bone marrow. AZ11665362 might hence be useful for the treatment of allergic diseases.
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Affiliation(s)
- J F Royer
- Institute of Experimental and Clinical Pharmacology, Medical University Graz, Graz, Austria
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Reich K, Griffiths C, Barker J, Chimenti S, Daudén E, Giannetti A, Gniadecki R, Katsambas A, Langley R, Mrowietz U, Ogilvie A, Ortonne JP, Reider N, Saurat JH. Recommendations for the long-term treatment of psoriasis with infliximab: a dermatology expert group consensus. Dermatology 2008; 217:268-75. [PMID: 18685261 DOI: 10.1159/000149970] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Accepted: 01/22/2008] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND/AIMS Infliximab has been approved for the treatment of chronic plaque psoriasis for only a few years. As physicians gain confidence in initiating and maintaining this therapy, guidance on the management of patients beyond several months or years is needed. To date, there is little or no information about the long-term management in clinical trials or guidelines. METHODS Here we report on the key aspects related to the use of infliximab for the treatment of psoriasis. The data presented here were derived using a modified Delphi survey to obtain a consensus opinion of 11 dermatologists from Europe and Canada experienced in long-term therapy with infliximab. RESULTS/CONCLUSION The Delphi participants reviewed several important topics related to biological therapy and infliximab. This paper is not intended to provide a recommendation on all practical aspects related to biological therapy; it has rather been written to provide useful and practical information on the 'best practice' use of infliximab.
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Affiliation(s)
- Kristian Reich
- Department of Dermatology, Dermatologikum Hamburg, Hamburg, Germany.
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Reich K, Sinclair R, Roberts G, Griffiths CEM, Tabberer M, Barker J. Comparative effects of biological therapies on the severity of skin symptoms and health-related quality of life in patients with plaque-type psoriasis: a meta-analysis. Curr Med Res Opin 2008; 24:1237-54. [PMID: 18355421 DOI: 10.1185/030079908x291985] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [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] [Indexed: 11/23/2022]
Abstract
BACKGROUND The comparative effects of biological response modifiers (BRMs) on the severity of psoriasis and its effects on health-related quality of life (HRQoL) have not been evaluated. OBJECTIVE To conduct a meta-analysis to assess the effects of available biological agents on the severity of psoriasis, as well as to provide data on the effects of these agents on HRQoL. METHODS Medline and other databases were searched for randomized controlled trials (>or= 10 weeks' duration in adults) comparing biological therapies for moderate-to-severe psoriasis with placebo. A Mantel-Haenszel fixed-effects model was employed to estimate the pooled relative risks (RR) of patients achieving >or= 75% reduction of baseline Psoriasis Area and Severity Index (PASI 75) after >or= 10 weeks of treatment. Similar analyses were also conducted on PASI 50 and PASI 90. Using a random-effects model, we estimated the likelihood of achieving PASI 50, PASI 75, and PASI 90 at 10-12 weeks and 24 weeks. Data on the effects of different BRMs (vs. placebo) on HRQoL were also presented. Numbers (%) of patients discontinuing treatment were presented as a general index of drug tolerability. RESULTS Patients receiving infliximab 5 mg/kg intravenously at weeks 0, 2, and 6, then every 8 weeks, had the highest RR of achieving PASI 75, with a pooled RR value of 25.48 (95% confidence interval [CI], 14.04-46.23); followed by etanercept 50 mg administered subcutaneously (SC) twice weekly with RR = 11.92 (95% CI, 8.17-17.39); etanercept 25 mg SC twice weekly with RR = 10.68 (95% CI, 6.15-18.57); efalizumab 1-2 mg/kg SC per week with RR = 7.47 (95% CI, 5.20-10.73); and alefacept administered weekly (various doses) with RR = 3.37 (95% CI, 2.18-5.23). (All RR values were estimated vs. placebo.) Similar findings were observed with regard to proportions of patients achieving PASI 50 and PASI 90. The random-effects analysis suggested that infliximab significantly increased the likelihood of achieving PASI 50, PASI 75, and PASI 90 compared with placebo at 10-12 weeks; however, there were no significant differences between biological treatments at 24 weeks. Each BRM improved HRQoL compared with placebo according to findings from the Dermatology Life Quality Index. Proportions of patients discontinuing treatment were similar in active-treatment and placebo groups. CONCLUSIONS Infliximab significantly reduced disease severity by both fixed- and random-effects models. All biological therapies improved HRQoL compared with placebo, and proportions of patients discontinuing treatment were similar in active-treatment and placebo groups. The analysis is potentially limited by statistical factors and did not systematically account for different toxicity profiles, but the findings establish a foundation for head-to-head comparative trials.
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Stephenson R, Barker J, Cramer R, Hall MA, Karita E, Chomba E, Vwalika C, Allen S. The demographic profile of sero-discordant couples enrolled in clinical research in Rwanda and Zambia. AIDS Care 2008; 20:395-405. [DOI: 10.1080/09540120701593497] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- R. Stephenson
- a Hubert Department of Global Health , Rollins School of Public Health, Emory University , Atlanta , GA , US
| | - J. Barker
- a Hubert Department of Global Health , Rollins School of Public Health, Emory University , Atlanta , GA , US
- b Rwanda Zambia HIV Research Group, Rollins School of Public Health , Emory University , Atlanta , GA , US
| | - R. Cramer
- a Hubert Department of Global Health , Rollins School of Public Health, Emory University , Atlanta , GA , US
- c Project San Francisco , Kigali , Rwanda
| | - M. A. Hall
- a Hubert Department of Global Health , Rollins School of Public Health, Emory University , Atlanta , GA , US
- b Rwanda Zambia HIV Research Group, Rollins School of Public Health , Emory University , Atlanta , GA , US
| | - E. Karita
- b Rwanda Zambia HIV Research Group, Rollins School of Public Health , Emory University , Atlanta , GA , US
- c Project San Francisco , Kigali , Rwanda
| | - E. Chomba
- d University Teaching Hospital School of Medicine , University of Zambia , Lusaka , Zambia
| | - C. Vwalika
- b Rwanda Zambia HIV Research Group, Rollins School of Public Health , Emory University , Atlanta , GA , US
- e Zambia Emory HIV Research Project , Lusaka , Zambia
| | - S. Allen
- a Hubert Department of Global Health , Rollins School of Public Health, Emory University , Atlanta , GA , US
- c Project San Francisco , Kigali , Rwanda
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Trembath R, Capon F, Nestle F, Barker J, Griffiths C, Burden D. Su.49. Pleiotropic Susceptibility Loci Identified in Psoriasis, Type II Diabetes and Crohn's Disease. Clin Immunol 2008. [DOI: 10.1016/j.clim.2008.03.400] [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: 10/22/2022]
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Abstract
OBJECTIVE A consensus conference was convened to evaluate the topical treatment of psoriasis. PARTICIPANTS Members of the International Psoriasis Council (IPC) with broad clinical experience in the treatment of psoriasis and a specialist in meta- and pharmacoeconomic analyses were invited to participate on the consensus panel. Those accepting the invitation convened in Saariselkä, Finland. EVIDENCE An advisory group on topical treatments was nominated by the organizing panel members. All participants reported at the consensus conference on evidence based data with respect to disease severity assessment, the available data on efficacy and safety and on a comparative efficacy/safety analysis. CONSENSUS PROCESS At the consensus conference, the presentations were discussed and conclusions, which were reached by the group, were recorded. Active participants of the group wrote assigned sections of this consensus document with a majority of participants agreed on the conclusions.
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Affiliation(s)
- P C M van de Kerkhof
- Department of Dermatology, University Medical Centre St Radboud, Nijmegen, The Netherlands
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143
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Kats N, Hawxby A, Barker J. Impact of obesity in arteriovenous fistula outcomes in dialysis patients. J Vasc Surg 2007. [DOI: 10.1016/j.jvs.2007.07.013] [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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Hesterkamp T, Barker J, Davenport A, Whittaker M. Fragment Based Drug Discovery Using Fluorescence Correlation Spectroscopy Techniques: Challenges and Solutions. Curr Top Med Chem 2007; 7:1582-91. [DOI: 10.2174/156802607782341064] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Salar Amoli H, Barker J, Flowers A. Closed vessels microwave digestion method for uranium analysis of soils using alpha-spectroscopy. J Radioanal Nucl Chem 2007. [DOI: 10.1007/s10967-007-6840-9] [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] [Indexed: 10/23/2022]
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Napper AD, Hixon J, McDonagh T, Keavey K, Pons JF, Barker J, Yau WT, Amouzegh P, Flegg A, Hamelin E, Thomas RJ, Kates M, Jones S, Navia MA, Saunders JO, DiStefano PS, Curtis R. Discovery of Indoles as Potent and Selective Inhibitors of the Deacetylase SIRT1. J Med Chem 2007. [DOI: 10.1021/jm061430o] [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: 11/28/2022]
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147
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Nestle F, Capon F, Barker J, Kastelein R, Trembath R, Tonel G, Di Meglio P, Oldham E, Lanchbury J. Evidence for a Role of the Interleukin-23 Pathway in the Pathogenesis of Psoriasis. Clin Immunol 2007. [DOI: 10.1016/j.clim.2007.03.357] [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: 10/23/2022]
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Abstract
Fistula use for dialysis is less frequent among obese than non-obese patients. This discrepancy may be due to a lower rate of fistula placement in obese patients, a higher primary failure rate (fistulas that are never usable for dialysis), or a higher secondary failure rate (fistulas that fail after being used successfully for dialysis). Using a prospective, computerized vascular access database, we identified all patients receiving a first fistula or graft at our institution during a 2-year period. The access outcomes were compared between obese (body mass index (BMI) >or=30 kg/m2) and non-obese (BMI<30 kg/m2) patients. Fistula placement was equally likely between obese and non-obese patients (47.4 vs 47.1%). The primary failure rate of fistulas was similar in both groups (46 vs 41%, P=0.45). Among those fistulas that were usable for dialysis, the secondary survival was worse in obese patients (hazard ratio 2.74; 95% confidence interval (CI), 1.48-7.90; P=0.004). Secondary fistula survival in obese vs non-obese patients was 68 vs 92% at 1 year, 59 vs 78% at 2 years, and 47 vs 70% at 3 years. On multiple variable survival analysis with age, sex, race, diabetes, coronary artery disease, peripheral vascular disease, fistula location, surgeon, and obesity in the model, obesity was the only significant factor predicting secondary fistula failure (hazards ratio 2.93; 95% CI, 1.44-5.93; P=0.004). In conclusion, long-term fistula survival is worse in obese than non-obese patients, owing to a higher secondary failure rate.
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Affiliation(s)
- M Kats
- Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35233, USA
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Pan L, Achenbach P, Barker J, Bingley P, Chiumello G, Eisenbarth G, Hasford J, Rabl W, Roth R, Schober E, Schönle E, Bonifacio E, Ziegler AG. Primäre Immunintervention mit oralem/nasalem Insulin zur Prävention des Typ 1 Diabetes bei Kindern mit einem sehr hohen genetischen Diabetesrisiko – Die Pre-POINT (Primary Oral/intranasal INsulin Trial) Studie. DIABETOL STOFFWECHS 2007. [DOI: 10.1055/s-2007-982484] [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: 10/21/2022]
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Boehncke WH, Brasie RA, Barker J, Chimenti S, Daudén E, de Rie M, Dubertret L, Giannetti A, Katsambas A, Kragballe K, Naeyaert JM, Ortonne JP, Peyrí J, Prinz JC, Saurat JH, Strohal R, van de Kerkhof P, Sterry W. Recommendations for the use of etanercept in psoriasis: a European dermatology expert group consensus. J Eur Acad Dermatol Venereol 2006; 20:988-98. [PMID: 16922950 DOI: 10.1111/j.1468-3083.2006.01707.x] [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] [Indexed: 11/29/2022]
Abstract
BACKGROUND Psoriasis is a chronic, inflammatory skin disorder that has a significant impact on quality of life and, particularly in moderate to severe cases, adversely affects the patient's overall health and well-being. Biological treatments, such as etanercept, are being widely adopted across Europe for treatment of moderate to severe psoriasis due to favourable safety and efficacy profiles. The increase in usage, combined with a growing body of clinical evidence, has identified a need to clarify the best use of etanercept within its current treatment label. OBJECTIVE To prepare a series of recommendations agreed by an expert group of dermatologists, relating to the most effective use of etanercept for psoriasis in Europe, within the product license. METHODS An expert panel of dermatologists from across Europe completed a Delphi survey to address the current use of etanercept in psoriasis in Europe. In June 2005 the results were presented to the expert panel at their nominal group meeting, and a consensus was agreed. RESULTS It was recommended that, where possible, patients are initiated on the 50 mg twice-weekly (BIW) dose. Etanercept should be given until remission is achieved (maximum 24 weeks) and retreatment should be initiated according to the physician's judgement. Before commencing treatment, contraindications, such as infection or previous malignancy (within 5 years), should be ruled out. CONCLUSIONS The consensus presented herein provides valuable clarification of use of etanercept according to the label, which may have wider implications relating to the use of all biological therapies in psoriasis.
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Affiliation(s)
- W-H Boehncke
- Johann Wolfgang Goethe-University, Frankfurt, Germany.
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