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Kilby W, Lee C, Young P, Dewitt D, Torgov M, Martin TJ, Capo L, Ikeura M, Malinao CC, Morrison KJM, Morrison K. Superiority of BNCT Treatment Planning Metrics Achieved Using Novel vs. Reference (BPA-F) Pharmaceuticals in Head and Neck Locations. Int J Radiat Oncol Biol Phys 2023; 117:e678. [PMID: 37785996 DOI: 10.1016/j.ijrobp.2023.06.2136] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Several novel boron delivery compounds currently under investigation by our group have demonstrated formulation, biodistribution, and dose response benefits in small animal models [1]. In this study we analyze the potential clinical impact of these compounds for boron neutron capture therapy (BNCT) in human patients. MATERIALS/METHODS Pharmacokinetic models were used to estimate the tumor and normal tissue boron concentrations after continuous infusion of the novel compounds and BPA-F. Patient model segmentation, material assignment, and alignment of one or more treatment beams were exported from a commercial treatment planning system (TPS) to a novel dose calculation tool. This information was used to generate a voxelized model that incorporated the source, beam shaping assembly, collimator, and patient materials so that the full albedo effect was included in each dose calculation. Physical dose from 10B(n,α), 14N(n,p), 1H(n,n') interactions plus gamma rays from 1H(n,γ) and other reactions within the patient and treatment equipment were calculated by Monte Carlo transport of particles originating in a pre-generated phase space at the cover surface. RBE and CBE weighting factors are applied to combine these four physical dose volumes into an equivalent dose volume, and these five dose volumes were passed back to the TPS for evaluation. RESULTS Tumor dose was increased by up to 2.6x for the novel compounds while normal tissue doses were constant or slightly reduced in comparison to BPA-F plans. Alternatively, for identical tumor dose the normal tissue doses and treatment time were reduced by up to 2.6x. In addition, in some cases it was possible to generate a single beam treatment plan using the new compounds that delivered higher tumor dose and lower normal tissues doses than a multiple beam plan using BPA-F. CONCLUSION This study demonstrates both dosimetric and practical benefits of the new compounds in comparison to BPA-F, including the potential to deliver treatment using fewer beam directions and correspondingly easier treatment setups and higher patient throughput. The potential of these compounds to extend the range of clinical indications for BNCT is also discussed. These results motivate upcoming experimental testing of the key assumptions involved in their calculation.
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Affiliation(s)
- W Kilby
- TAE Life Sciences, Foothill Ranch, CA
| | - C Lee
- TAE Life Sciences, Foothill Ranch, CA
| | - P Young
- TAE Life Sciences, Foothill Ranch, CA
| | - D Dewitt
- TAE Life Sciences, Foothill Ranch, CA
| | - M Torgov
- TAE Life Sciences, Foothill Ranch, CA
| | | | - L Capo
- TAE Life Sciences, Foothill Ranch, CA
| | - M Ikeura
- TAE Life Sciences, Foothill Ranch, CA
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Lara-Chica M, Correa-Sáez A, Jiménez-Izquierdo R, Garrido-Rodríguez M, Ponce FJ, Moreno R, Morrison K, Di Vona C, Arató K, Jiménez-Jiménez C, Morrugares R, Schmitz ML, de la Luna S, de la Vega L, Calzado MA. A novel CDC25A/DYRK2 regulatory switch modulates cell cycle and survival. Cell Death Differ 2022; 29:105-117. [PMID: 34363019 PMCID: PMC8738746 DOI: 10.1038/s41418-021-00845-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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: 02/09/2021] [Revised: 06/30/2021] [Accepted: 07/26/2021] [Indexed: 02/07/2023] Open
Abstract
The cell division cycle 25A (CDC25A) phosphatase is a key regulator of cell cycle progression that acts on the phosphorylation status of Cyclin-Cyclin-dependent kinase complexes, with an emergent role in the DNA damage response and cell survival control. The regulation of CDC25A activity and its protein level is essential to control the cell cycle and maintain genomic integrity. Here we describe a novel ubiquitin/proteasome-mediated pathway negatively regulating CDC25A stability, dependent on its phosphorylation by the serine/threonine kinase DYRK2. DYRK2 phosphorylates CDC25A on at least 7 residues, resulting in its degradation independent of the known CDC25A E3 ubiquitin ligases. CDC25A in turn is able to control the phosphorylation of DYRK2 at several residues outside from its activation loop, thus affecting DYRK2 localization and activity. An inverse correlation between DYRK2 and CDC25A protein amounts was observed during cell cycle progression and in response to DNA damage, with CDC25A accumulation responding to the manipulation of DYRK2 levels or activity in either physiological scenario. Functional data show that the pro-survival activity of CDC25A and the pro-apoptotic activity of DYRK2 could be partly explained by the mutual regulation between both proteins. Moreover, DYRK2 modulation of CDC25A expression and/or activity contributes to the DYRK2 role in cell cycle regulation. Altogether, we provide evidence suggesting that DYRK2 and CDC25A mutually control their activity and stability by a feedback regulatory loop, with a relevant effect on the genotoxic stress pathway, apoptosis, and cell cycle regulation.
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Affiliation(s)
- Maribel Lara-Chica
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Alejandro Correa-Sáez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Rafael Jiménez-Izquierdo
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Martín Garrido-Rodríguez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Francisco J Ponce
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Rita Moreno
- Division of Cellular Medicine, School of Medicine, University of Dundee, Scotland, UK
| | - Kimberley Morrison
- Division of Cellular Medicine, School of Medicine, University of Dundee, Scotland, UK
| | - Chiara Di Vona
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Barcelona, Spain
| | - Krisztina Arató
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Barcelona, Spain
| | - Carla Jiménez-Jiménez
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - Rosario Morrugares
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain
- Hospital Universitario Reina Sofía, Córdoba, Spain
| | - M Lienhard Schmitz
- Institute of Biochemistry, Justus-Liebig-University, Member of the German Center for Lung Research, Giessen, Germany
| | - Susana de la Luna
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain
| | - Laureano de la Vega
- Division of Cellular Medicine, School of Medicine, University of Dundee, Scotland, UK
| | - Marco A Calzado
- Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain.
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Córdoba, Spain.
- Hospital Universitario Reina Sofía, Córdoba, Spain.
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Bohne AS, Dietrich C, Morrison K, Schwarz T, Wehkamp U, Kaeding M. Two cases of quinine-induced fixed 'drug' eruption induced by long drinks. J Eur Acad Dermatol Venereol 2021; 35:e774-e776. [PMID: 34138490 DOI: 10.1111/jdv.17453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A S Bohne
- Department of Dermatology and Allergology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - C Dietrich
- Department of Dermatology and Allergology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - K Morrison
- Department of Dermatology and Allergology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - T Schwarz
- Department of Dermatology and Allergology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - U Wehkamp
- Department of Dermatology and Allergology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - M Kaeding
- Department of Dermatology and Allergology, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
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Morrison K, Ellis R, Cross S. P.74 Enhanced recovery for obstetric surgery in Scotland: Improving mobilisation post-spinal in elective caesarean sections. Int J Obstet Anesth 2021. [DOI: 10.1016/j.ijoa.2021.103072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Stephens DN, Wodnicki R, Chen R, Liang LM, Zhou Q, Morrison K, Ferrara KW. The effective coupling coefficient for a completed PIN-PMN-PT array. Ultrasonics 2021; 109:106258. [PMID: 33011614 PMCID: PMC7744335 DOI: 10.1016/j.ultras.2020.106258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 08/20/2020] [Accepted: 09/16/2020] [Indexed: 06/11/2023]
Abstract
The computation of the electromechanical coupling coefficient (EMCC) of a fully assembled medical ultrasound transducer array is directly computed with closed form expressions. The Levenberg-Marquardt non-linear regression algorithm (LMA) is employed to help confirm the EMCC calculated prediction (kEFF) and provide statistical insights. The complex electrical impedance spectra of a 1-3 composite array with two matching layers operating at a 3.75 MHz center frequency using PIN-PMN-PT single crystal material is measured in air both before and after oven heating at 160 °C for 15 min. The oven heating produces changes in the EMCC of -4.9%, clamped dielectric constant of -11%, and effective transducer longitudinal velocity of -2.5%. Utilizing the pre- and post-heating array impedance data, the calculated EMCC values from the new closed form expressions agree well with the complete KLM model based LMA, and also exhibit approximately one tenth the error as compared to the formulas for a flat, unloaded transducer.
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Venkat G, Cox CDW, Sola A, Basso V, Morrison K. Measurement of the heat flux normalized spin Seebeck coefficient of thin films as a function of temperature. Rev Sci Instrum 2020; 91:073910. [PMID: 32752805 DOI: 10.1063/5.0007989] [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: 03/17/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
The spin Seebeck effect (SSE) has generated interest in the thermoelectric and magnetic communities for potential high efficiency energy harvesting applications and spintronic communities as a source of pure spin current. Understanding the underlying mechanisms requires characterization of potential materials across a range of temperatures; however, for thin films, the default measurement of an applied temperature gradient (across the sample) has been shown to be compromised by the presence of thermal resistances. Here, we demonstrate a method to perform low temperature SSE measurements where, instead of monitoring the temperature gradient, the heat flux passing through the sample is measured using two calibrated heat flux sensors. This has the advantage of measuring the heat loss through the sample as well as providing a reliable method to normalize the SSE response of thin film samples. We demonstrate this method with an SiO2/Fe3O4/Pt sample where a semiconducting-insulating transition occurs at the Verwey transition, TV, of Fe3O4 and quantify the thermomagnetic response above and below TV.
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Affiliation(s)
- G Venkat
- Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom
| | - C D W Cox
- Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom
| | - A Sola
- Instituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Torino, Italy
| | - V Basso
- Instituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135 Torino, Italy
| | - K Morrison
- Department of Physics, Loughborough University, Loughborough LE11 3TU, United Kingdom
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Maunsell R, Bloomfield S, Erridge C, Foster C, Hardcastle M, Hogden A, Kidd A, Lisiecka D, McDermott C, Morrison K, Recio-Saucedo A, Rickenbach L, White S, Williams P, Wheelwright S. Developing a web-based patient decision aid for gastrostomy in motor neurone disease. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2019.12.062] [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: 10/25/2022]
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Morrison K, Van As N. PO-0860 Improving consistency of proximal seminal vesicle delineation for prostate SBRT. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31280-0] [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: 11/17/2022]
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9
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Morrison K, Naismith O, van As N. Variability Analysis of Clinical Target Volume Outlining for Prostate Stereotactic Body Radiotherapy within the Multicentre PACE Trial. Clin Oncol (R Coll Radiol) 2019. [DOI: 10.1016/j.clon.2018.11.012] [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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10
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Doñate F, Yang P, Morrison K, Karki S, Aviña H, Lackey J, Sawas A, Savage K, Perez R, Advani R, Zain J, O'Connor O, Reyno L. Analysis of preclinical and clinical samples after treatment with a CD37 targeting antibody drug conjugate (AGS67E) support a high level of CD37 expression in NHL. Hematol Oncol 2017. [DOI: 10.1002/hon.2439_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- F. Doñate
- Translational Research/Clinical Oncology; Agensys; Santa Monica CA USA
| | - P. Yang
- Translational Research/Clinical Oncology; Agensys; Santa Monica CA USA
| | - K. Morrison
- Translational Research/Clinical Oncology; Agensys; Santa Monica CA USA
| | - S. Karki
- Translational Research/Clinical Oncology; Agensys; Santa Monica CA USA
| | - H. Aviña
- Translational Research/Clinical Oncology; Agensys; Santa Monica CA USA
| | - J.M. Lackey
- Translational Research/Clinical Oncology; Agensys; Santa Monica CA USA
| | - A. Sawas
- Center for Lymphoid Malignancies; Columbia University Medical Center; New York NY USA
| | - K.J. Savage
- Department of Medicine; British Columbia Cancer Center; Vancouver BC Canada
| | - R.P. Perez
- Division of Hematology / Oncology; University of Kansas Clinical Research Center; Westwood KS USA
| | - R.H. Advani
- Division of Oncology; Stanford University Medical Center; Stanford CA USA
| | - J.M. Zain
- Hematology and Hematopoietic Transplantation; City of Hope; Duarte CA USA
| | - O.A. O'Connor
- Center for Lymphoid Malignancies; Columbia University Medical Center; New York NY USA
| | - L.M. Reyno
- Translational Research/Clinical Oncology; Agensys; Santa Monica CA USA
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Ost P, Van As N, Pasquier D, Ingresso G, Zilli T, De Meerleer G, Surgo A, Morrison K, Orecchia R, Lancia A, Fonteyne V, Tree A, Ponti E, Miralbell R, Jereczek-Fossa B. Stereotactic body radiotherapy for nodal oligorecurrent prostate cancer: A multi-institutional analysis. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/s1569-9056(16)30437-7] [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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Petrylak D, Heath E, Sonpavde G, George S, Morgans A, Eigl B, Picus J, Cheng S, Hotte S, Gartner E, Vincent M, Chu R, Anand B, Morrison K, Jackson L, Melhem-Bertrandt A, Yu E. Interim analysis of a phase I dose escalation trial of the antibody drug conjugate (ADC) AGS15E (ASG-15ME) in patients (Pts) with metastatic urothelial cancer (mUC). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw373.08] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sohani Z, Anand S, Robiou-du-Pont S, Morrison K, McDonald S, Atkinson S, Teo K, Meyre D. 137: Genes Increasing Glucose Levels in Early Childhood Provide Support for the Fetal Insulin Hypothesis: Results from the Family Study. Paediatr Child Health 2015. [DOI: 10.1093/pch/20.5.e84] [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: 11/13/2022] Open
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Morrison K, Zerizer I, Trouncer R, Murray I, Amin K, Taylor A. EP-1267: Defining a standard method for functional bone marrow sparing with IMRT for cervical cancer. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41259-9] [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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Wolpin BM, O'Reilly EM, Ko YJ, Blaszkowsky LS, Rarick M, Rocha-Lima CM, Ritch P, Chan E, Spratlin J, Macarulla T, McWhirter E, Pezet D, Lichinitser M, Roman L, Hartford A, Morrison K, Jackson L, Vincent M, Reyno L, Hidalgo M. Global, multicenter, randomized, phase II trial of gemcitabine and gemcitabine plus AGS-1C4D4 in patients with previously untreated, metastatic pancreatic cancer. Ann Oncol 2013; 24:1792-1801. [PMID: 23448807 PMCID: PMC3716216 DOI: 10.1093/annonc/mdt066] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 12/08/2012] [Accepted: 01/28/2013] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND We evaluated AGS-1C4D4, a fully human monoclonal antibody to prostate stem cell antigen (PSCA), with gemcitabine in a randomized, phase II study of metastatic pancreatic cancer. PATIENTS AND METHODS Patients with Eastern Cooperative Oncology Group (ECOG) performance status 0/1 and previously untreated, metastatic pancreatic adenocarcinoma were randomly assigned 1:2 to gemcitabine (1000 mg/m(2) weekly seven times, 1 week rest, weekly three times q4weeks) or gemcitabine plus AGS-1C4D4 (48 mg/kg loading dose, then 24 mg/kg q3weeks IV). The primary end point was 6-month survival rate (SR). Archived tumor samples were collected for pre-planned analyses by PSCA expression. RESULTS Between April 2009 and May 2010, 196 patients were randomly assigned to gemcitabine (n = 63) or gemcitabine plus AGS-1C4D4 (n = 133). The 6-month SR was 44.4% (95% CI, 31.9-57.5) in the gemcitabine arm and 60.9% (95% CI, 52.1-69.2) in the gemcitabine plus AGS-1C4D4 arm (P = 0.03), while the median survival was 5.5 versus 7.6 months and the response rate was 13.1% versus 21.6% in the two arms, respectively. The 6-month SR was 57.1% in the gemcitabine arm versus 79.5% in the gemcitabine plus AGS-1C4D4 arm among the PSCA-positive subgroup and 31.6% versus 46.2% among the PSCA-negative subgroup. CONCLUSIONS This randomized, phase II study achieved its primary end point, demonstrating an improved 6-month SR with addition of AGS-1C4D4 to gemcitabine among patients with previously untreated, metastatic pancreatic adenocarcinoma. ClinicalTrials.gov identifier: NCT00902291.
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Affiliation(s)
| | - E M O'Reilly
- Memorial Sloan Kettering Cancer Center, New York, USA
| | - Y J Ko
- Sunnybrook Health Science Center, Toronto, Canada
| | | | - M Rarick
- Kaiser Permanente Northwest Region Oncology Hematology, Portland
| | - C M Rocha-Lima
- Sylvester Comprehensive Cancer Center, University of Miami, Miami
| | - P Ritch
- Medical College of Wisconsin, Milwaukee
| | - E Chan
- Vanderbilt University Medical Center, Nashville, USA
| | - J Spratlin
- Cross Cancer Institute, Edmonton, Alberta, Canada
| | - T Macarulla
- Hospital Vall d'Hebrón, Servicio de Oncología, Barcelona, Spain
| | - E McWhirter
- Juravinski Cancer Centre, Hamilton, Ontario, Canada
| | - D Pezet
- Inserm U1071, Centre Hospitalier Universitaire Estaing, Clermont-Ferrand, France
| | - M Lichinitser
- State Institution 'Blokhin Cancer Research Centre RAMS', Moscow
| | - L Roman
- State Healthcare Institution 'Leningrad Regional Oncologic Dispensary', Saint Petersburg, Russia
| | | | | | | | | | - L Reyno
- Agensys, Inc., Santa Monica, USA
| | - M Hidalgo
- Centro Integral Oncológico 'Clara Campal', Madrid; Centro Nacional de Investigaciones Oncologicas, Madrid, Spain
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Al-Chalabi A, Shaw P, Kelly J, Morrison K, Murphy C, Thornhill M, Steen N, Leigh PN. LITHIUM CARBONATE IS NOT BENEFICIAL FOR PATIENTS WITH AMYOTROPHIC LATERAL SCLEROSIS: RESULTS OF THE LICALS TRIAL [EUDRACT NUMBER: 2008-006891-31]. J Neurol Neurosurg Psychiatry 2012. [DOI: 10.1136/jnnp-2012-304200a.115] [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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Doñate F, Hartford A, Morrison K, da Cruz L, Nater J, Brooks T, Ou J, Chalita-Eid P, Stover D, Reyno L. 480 Detection by Immunohistochemistry of Prostate Stem Cell Antigen (PSCA) in Tumors is Not a Predictive Biomarker for the Anti-PSCa Monoclonal Antibody AGS-1C4D4: Identification of Alternative Predictive Biomarkers. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72278-5] [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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Helden L, Morrison K, Levinson A, Ng S, Colizza L. NP026 Randomized Trial of E-Learning Vs Face-to-Face Education on Patient Knowledge and Treatment Choices for Cholesterol Lowering Interventions. Can J Cardiol 2012. [DOI: 10.1016/j.cjca.2012.07.841] [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] Open
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Korczak D, Szatmari P, Duku E, Morrison K, Georgiadis K, Lipman E. Childhood Onset Depression is Associated with Adult Overweight: Results from a Prospective Longitudinal Community Study. Paediatr Child Health 2012. [DOI: 10.1093/pch/17.suppl_a.11a] [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: 11/13/2022] Open
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Morrison K, Bratko M, Turcaud J, Berenov A, Caplin AD, Cohen LF. A calorimetric method to detect a weak or distributed latent heat contribution at first order magnetic transitions. Rev Sci Instrum 2012; 83:033901. [PMID: 22462932 DOI: 10.1063/1.3690381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Microcalorimetry has proven to be a versatile tool to investigate first order magnetic phase transitions as it can be used in different experimental modes to separate the latent heat from heat capacity. However, the methodology fails if the latent heat contribution is below instrumental resolution of 10 nJ. If the nucleation size of the new phase is much less than 100 μm, the typical size of the fragment measured, the latent heat could appear to be too distributed in temperature or magnetic field to be detected. Here, we show that for certain classes of magnetic transition, our microcalorimetry technique can be extended to enable an estimate of the latent heat to be obtained from a combination of heat capacity and magnetic measurements. This technique is best suited for material systems with weakly first order phase transitions, or highly distributed due to inhomogeneity.
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Affiliation(s)
- K Morrison
- Blackett Laboratory, Imperial College London, London, SW7 2AZ United Kingdom.
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Marsh E, Young T, Morrison K, Winer JB, Llewelyn JG. 163 Inflammatory demyelinating neuropathy complicating anti-TNF-α therapy. J Neurol Psychiatry 2012. [DOI: 10.1136/jnnp-2011-301993.205] [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: 11/03/2022]
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Siller L, Wong K, Farah C, Morrison K, Bryan P, Wolstenholme J, Warren A. 040 Can Child Life Interventions Replace Sedation for Obtaining Complete Echocardiograms on Toddlers With Heart Disease? Can J Cardiol 2011. [DOI: 10.1016/j.cjca.2011.07.037] [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] Open
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Kerins M, Fitzgerald G, O Neill M, Morrison K, Bannon J, Spain M, McKee G. P96 A descriptive study of some outcome measures in cardiac rehabilitation: obesity, physical fitness, anxiety and depression. Eur J Cardiovasc Nurs 2011. [DOI: 10.1016/s1474-5151(11)60130-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Morrison K, Goodall EF, Stockton J, Hill S, Dong YY, Moorby C. PATU6 Protein interactors of EAAT2 and their role in motor neurone disease/amyotrophic lateral sclerosis. Journal of Neurology, Neurosurgery & Psychiatry 2010. [DOI: 10.1136/jnnp.2010.226340.35] [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: 11/03/2022]
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Branford WR, Yates KA, Barkhoudarov E, Moore JD, Morrison K, Magnus F, Miyoshi Y, Sousa PM, Conde O, Silvestre AJ, Cohen LF. Coexistence of universal and topological anomalous hall effects in metal CrO2 thin films in the dirty limit. Phys Rev Lett 2009; 102:227201. [PMID: 19658897 DOI: 10.1103/physrevlett.102.227201] [Citation(s) in RCA: 1] [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: 02/17/2009] [Indexed: 05/28/2023]
Abstract
The scaling exponent of 1.6 between anomalous Hall and longitudinal conductivity, characteristic of the universal Hall mechanism in dirty-metal ferromagnets, emerges from a series of CrO2 films as we systematically increase structural disorder. Magnetic disorder in CrO2 increases with temperature and this drives a separate topological Hall mechanism. We find that these terms are controlled discretely by structural and magnetic defect populations, and their coexistence leads to apparent divergence from exponent 1.6, suggesting that the universal term is more prevalent than previously realized.
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Affiliation(s)
- W R Branford
- Physics Department, Blackett Laboratory, Imperial College London, Prince Consort Road, SW7 2BZ, United Kingdom
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Miyoshi Y, Morrison K, Moore JD, Caplin AD, Cohen LF. Heat capacity and latent heat measurements of CoMnSi using a microcalorimeter. Rev Sci Instrum 2008; 79:074901. [PMID: 18681727 DOI: 10.1063/1.2960556] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A new method of utilizing a commercial silicon nitride membrane calorimeter to measure the latent heat at a first order phase transition is presented. The method is a direct measurement of the thermoelectric voltage jump induced by the latent heat, in a thermally isolated system ideally suited for single crystal and small microgram samples. We show that when combined with the ac calorimetry technique previously developed, the resultant thermal measurement capabilities are extremely powerful. We demonstrate the applicability of the combined method with measurements on a 100 microm size fragment of CoMnSi exhibiting a sizable magnetocaloric effect near room temperature, and obtain good agreement with previously reported values on bulk samples.
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Affiliation(s)
- Y Miyoshi
- Blackett Laboratory, Imperial College London, London, United Kingdom
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Magnus F, Wood B, Moore J, Morrison K, Perkins G, Fyson J, Wiltshire MCK, Caplin D, Cohen LF, Pendry JB. A d.c. magnetic metamaterial. Nat Mater 2008; 7:295-297. [PMID: 18297077 DOI: 10.1038/nmat2126] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2007] [Accepted: 01/21/2008] [Indexed: 05/25/2023]
Abstract
Electromagnetic metamaterials are a class of materials that have been artificially structured on a subwavelength scale. They are currently the focus of a great deal of interest because they allow access to previously unrealizable properties such as a negative refractive index. Most metamaterial designs have so far been based on resonant elements, such as split rings, and research has concentrated on microwave frequencies and above. Here, we present the first experimental realization of a non-resonant metamaterial designed to operate at zero frequency. Our samples are based on a recently proposed template for an anisotropic magnetic metamaterial consisting of an array of superconducting plates. Magnetometry experiments show a strong, adjustable diamagnetic response when a field is applied perpendicular to the plates. We have calculated the corresponding effective permeability, which agrees well with theoretical predictions. Applications for this metamaterial may include non-intrusive screening of weak d.c. magnetic fields.
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Affiliation(s)
- F Magnus
- Physics Department, Imperial College London, Exhibition Road, London SW7 2AZ, UK
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Braham R, Morrison K, Guelfi K, Dawson B, Pinnington H, Alderson J, Elliot B, Lloyd D, Mills P. The Benefits Of Sandwalking For Improving Strength And Physical Fitness In Elderly Women. Med Sci Sports Exerc 2007. [DOI: 10.1249/01.mss.0000274658.14237.2a] [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: 11/21/2022]
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Shetty V, Teubner A, Morrison K, Scott NA. Proximal loop jejunostomy is a useful adjunct in the management of multiple intestinal suture lines in the septic abdomen. Br J Surg 2006; 93:1247-50. [PMID: 16862610 DOI: 10.1002/bjs.5473] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [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: 11/07/2022]
Abstract
Abstract
Background
Bowel repair in the septic abdomen can be problematic. This study investigated the use of a proximal loop jejunostomy to protect injured or fistulated bowel that had been returned to the abdomen after repair and/or anastomosis.
Methods
Ten patients who underwent laparotomy for intra-abdominal sepsis and/or fistulation, followed by distal enteric repair and/or anastomosis and construction of a proximal defunctioning loop jejunostomy, were studied retrospectively. Seven patients had 21 intestinal suture lines returned to the peritoneal cavity in the presence of intra-abdominal sepsis (14 anastomoses, two enterotomy closures and five serotomy repairs). Two patients had a difficult relaparotomy for pelvic abscess (two distal anastomoses, one enterotomy closure and three serotomy repairs). The final patient had pelvic sepsis and radiation enteritis; the distal anastomosis was defunctioned by a loop jejunostomy.
Results
The median distance from the duodenojejunal flexure to the loop stoma was 80 (range 30–170) cm. All jejunostomies were closed via a local approach, a median of 11 (range 9–18) months after formation. There was no significant postoperative morbidity and no postoperative death. At a median follow-up of 7 (range 0·5–56) months eight patients had no requirement for nutritional support.
Conclusion
Use of a loop jejunostomy to protect suture lines in the septic abdomen justifies consideration of this procedure in selected patients.
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Affiliation(s)
- V Shetty
- Intestinal Failure Unit, Hope Hospital, Manchester, UK
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Santaguida PL, Balion C, Hunt D, Morrison K, Gerstein H, Raina P, Booker L, Yazdi H. Diagnosis, prognosis, and treatment of impaired glucose tolerance and impaired fasting glucose. Evid Rep Technol Assess (Summ) 2005:1-11. [PMID: 16194123 PMCID: PMC4780988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
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Jakobovits A, Gudas JM, Jia X, Morrison K, An Z, Shao H, Raitano AB, Morrison KJ, Challita P, Kanner SB. Therapeutic potential of AGS-PSCA: A fully human monoclonal antibody to prostate stem cell antigen (PSCA) for the treatment of prostate and pancreatic cancers. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.4722] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | - X. Jia
- Agensys, Santa Monica, CA
| | | | - Z. An
- Agensys, Santa Monica, CA
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Vazquez BG, Morrison K, Fitzpatrick AL. 11 E-MAIL EVALUATION OF A COURSE IN HIV PREVENTION FOR HEALTH PROFESSIONALS IN MEXICO AND LATIN AMERICA. J Investig Med 2005. [DOI: 10.2310/6650.2005.00005.10] [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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Sood R, Bader PI, Speer MC, Edwards YH, Eddings EM, Blair RT, Hu P, Faruque MU, Robbins CM, Zhang H, Leuders J, Morrison K, Thompson D, Schwartzberg PL, Meltzer PS, Trent JM. Cloning and characterization of an inversion breakpoint at 6q23.3 suggests a role for Map7 in sacral dysgenesis. Cytogenet Genome Res 2004; 106:61-7. [PMID: 15218243 DOI: 10.1159/000078563] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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] [Received: 12/17/2003] [Accepted: 02/11/2004] [Indexed: 11/19/2022] Open
Abstract
Here we report on a male patient with sacral dysgenesis (SD) and constitutional pericentric inversion of chromosome 6 (p11.2;q23.3). SD is a heterogeneous group of congenital anomalies with complex genetic etiology. Previously, a patient with sacral abnormalities and an interstitial deletion of 6q23-->q25 region has been described. We speculated that a susceptibility gene for SD lies in 6q23.3 region (disrupted in both patients), and therefore, cloning of the breakpoint in our patient would lead to the identification of the disrupted gene. We performed FISH analysis followed by Southern blot analysis and inverse PCR to clone the breakpoint. The 6p11.2 breakpoint mapped very close to the centromere, and the 6q23.3 breakpoint localized in the ninth intron of the MAP7 gene. We then evaluated the involvement of MAP7 in SD by further screening of the gene in several patients with a similar phenotype. Two nucleotide changes causing Ile257Asn and Glu571Ala substitutions in the protein, both affecting amino acid residues conserved in the mouse homolog, were identified in two patients. Both changes are either very rare polymorphisms or true mutations, since they were not detected in 167 normal individuals nor found in the SNP database. Therefore, our study suggests MAP7 as a candidate gene for SD. However, we were unable to detect any sacral defects in the MAP7 knockout mice.
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Affiliation(s)
- R Sood
- Cancer Genetics Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, USA
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Abstract
A total of 267 families with two or more siblings with multiple sclerosis (MS) were genotyped with 14 restriction fragment length polymorphisms at the TCR beta locus. A nonparametric linkage analysis of the data showed no evidence for linkage to this locus (mlod=0.11). No significant allelic or haplotype transmissions were observed in the total sample of 565 patients. After stratification for the presence of HLA DRB1*15, an association was observed between the BV25S1*1-BV26S1*1-BV2S1*1 haplotype and MS (P=0.00089). This was not significant upon correction for multiple comparisons. It was also not significant when the haplotype frequency in affected individuals was compared to a normal control sample (P=0.77). Furthermore, the associated haplotype was followed-up in an independent sample of 97 nuclear families with a single DRB1*15-positive child with MS. The BV25S1*1-BV26S1*1-BV2S1*1 haplotype did not show significant evidence for transmission distortion but the same trend was seen (P=0.21). There were no significant associations observed in the DRB1*15-negative patients and no detectable difference was seen in the DRB1*15-positive BV25S1*1-BV26S1*1-BV2S1*1 association when comparing different subgroups based on clinical course of MS. These results show no evidence for linkage and fail to establish an association between MS susceptibility and the TCR beta locus.
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Affiliation(s)
- D A Dyment
- Wellcome Trust Center for Human Genetics, Oxford, UK
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Teubner A, Morrison K, Ravishankar HR, Anderson ID, Scott NA, Carlson GL. Fistuloclysis can successfully replace parenteral feeding in the nutritional support of patients with enterocutaneous fistula. Br J Surg 2004; 91:625-31. [PMID: 15122616 DOI: 10.1002/bjs.4520] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.1] [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: 11/10/2022]
Abstract
Abstract
Background
Use of total parenteral nutrition (TPN) in patients with acute intestinal failure due to enteric fistulation might be avoided if a simpler means of nutritional support was available. The aim of this study was to determine whether feeding via an intestinal fistula (fistuloclysis) would obviate the need for TPN.
Methods
Fistuloclysis was attempted in 12 patients with jejunocutaneous or ileocutaneous fistulas with mucocutaneous continuity. Feeding was achieved by inserting a gastrostomy feeding tube into the intestine distal to the fistula. Infusion of enteral feed was increased in a stepwise manner, without reinfusion of chyme, until predicted nutritional requirements could be met by a combination of fistuloclysis and regular diet, following which TPN was withdrawn. Energy requirements and nutritional status were assessed before starting fistuloclysis and at the time of reconstructive surgery.
Results
Fistuloclysis replaced TPN entirely in 11 of 12 patients. Nutritional status was maintained for a median of 155 (range 19–422) days until reconstructive surgery could be safely undertaken in nine patients. Two patients who did not undergo surgery remained nutritionally stable over at least 9 months. TPN had to be recommenced in one patient. There were no complications associated with fistuloclysis.
Conclusion
Fistuloclysis appears to provide effective nutritional support in selected patients with enterocutaneous fistula.
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Affiliation(s)
- A Teubner
- Intestinal Failure Unit, Department of Surgery, Hope Hospital, Salford, UK
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Morrison K. Stakeholder involvement in water management: necessity or luxury? Water Sci Technol 2003; 47:43-51. [PMID: 12731770] [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: 05/24/2023]
Abstract
Stakeholder involvement in water management is widely recognized as an important component of the design and implementation of sustainable water management initiatives. Despite this, there remains a deep-rooted resistance to the widespread implementation of programs to prioritize such involvement (as witnessed by, for example, the low priority given to the public involvement element of the European Union Water Framework Directive). This paper addresses the issue of stakeholder involvement by first confronting the fact that it is not a water issue, per se. Such diverse fields as economics, agriculture, public health, pollution prevention, business and education have also identified stakeholder involvement as a difficult but necessary component of successful action in their fields. For the water sector, the issue of stakeholder involvement as either a necessity for sustainable water management, or a luxury to be used to complement traditional approaches, is discussed.
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Affiliation(s)
- K Morrison
- University of Guelph, 287 Byng Avenue, North York M2N 4L4, Canada.
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Affiliation(s)
- J E Kopfman
- Department of Communication, Cleveland State University, Cleveland, Ohio, USA.
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Affiliation(s)
- K. Morrison
- Department of Applied Computing, University of Dundee, Dundee DD1 4HN, Scotland, UK. Tel.: ; Fax: ; E-mail: ,
| | - S.J. McKenna
- Department of Applied Computing, University of Dundee, Dundee DD1 4HN, Scotland, UK. Tel.: ; Fax: ; E-mail: ,
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Razzaque Z, Pickard JD, Ma QP, Shaw D, Morrison K, Wang T, Longmore J. 5-HT1B-receptors and vascular reactivity in human isolated blood vessels: assessment of the potential craniovascular selectivity of sumatriptan. Br J Clin Pharmacol 2002; 53:266-74. [PMID: 11874390 PMCID: PMC1874302 DOI: 10.1046/j.0306-5251.2001.01536.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AIMS 5-HT1B-receptor mediated vasoconstriction of cranial arteries is a potential mechanism by which 5-HT1B/1D-receptor agonists such as sumatriptan produce their antimigraine effects. 5-HT1B-receptors exist in other blood vessels which may give rise to unwanted vascular effects. Therefore we examined the distribution of 5-HT1B-receptor immunoreactivity (i.r.) in human blood vessels (including target and nontarget vessels) and confirmed the functionality of this receptor protein, by comparing the vasoconstrictor effects of sumatriptan and 5-HT (the endogenous ligand) in isolated vessels. METHODS Blood vessels (middle meningeal, pial, temporal and uterine arteries and saphenous veins) were obtained from surgical patients (with consent). Sections of the vessels were prepared for routine immunohistochemical studies using specific 5-HT1B- and 5-HT1D-receptor antibodies. For functional studies, ring segments of the vessels were mounted in organ baths for isometric tension recording. RESULTS 5-HT1B-receptor i.r. was detected on the smooth muscle layer in middle meningeal, pial and uterine arteries and in saphenous vein and sumatriptan produced contractions in these vessels with potency values (mean pEC50) of 7.00, 7.08, 6.44 and 6.61, respectively, the magnitude of contraction was greatest in the cranial arteries with Emax values of 100.7, 60.3, 23.0 and 35.9%, respectively (expressed as a percentage of the reference agonist 45 mm KCl). 5-HT1B-receptor i.r. was not detected in temporal artery and sumatriptan had no effect in this artery. 5-HT1D-receptor i.r. was not detected in any of the vessels studied. CONCLUSIONS Sumatriptan can evoke vasoconstriction in antimigraine target vessels and also in nontarget vessels through an action at 5-HT1B-rcceptors. Sumatriptan acts preferentially to cause contraction in human cranial arteries compared with the other blood vessels we examined and this effect is likely to be shared by other drugs of this class.
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Affiliation(s)
- Z Razzaque
- Merck Sharp & Dohme Research Laboratories, Neuroscience Research Centre, Eastwick Road, Harlow, Essex, CM20 2QR, UK
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Tognon C, Garnett M, Kenward E, Kay R, Morrison K, Sorensen PH. The chimeric protein tyrosine kinase ETV6-NTRK3 requires both Ras-Erk1/2 and PI3-kinase-Akt signaling for fibroblast transformation. Cancer Res 2001; 61:8909-16. [PMID: 11751416] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
There is increasing interest in the potential role of the NTRK family of neurotrophin receptors in human neoplasia. These receptor protein tyrosine kinases (PTKs) are well-known mediators of neuronal cell survival and differentiation, but altered NTRK signaling has also been implicated in mesenchymal, hematopoietic, and epithelial malignancies. We recently identified a novel gene fusion involving one of the neurotrophin receptor genes, NTRK3, in the pediatric solid tumor, congenital fibrosarcoma. In these tumors (and subsequently demonstrated in several other human malignancies), a t(12;15)(p13;q25) rearrangement fuses the 3' portion of the ETV6 gene with exons encoding the PTK domain of NTRK3. The resulting ETV6-NTRK3 fusion protein functions as a chimeric PTK with potent transforming activity. However, previous studies failed to detect interactions between ETV6-NTRK3 and molecules known to link wild-type NTRK3 to its two major effector pathways, namely the Ras-Raf1-Mek1-Erk1/2 mitogenic pathway or the phosphatidylinositol 3'-kinase pathway leading to activation of the AKT survival factor. Therefore, it remains unknown whether ETV6-NTRK3 transformation involves altered NTRK3 signaling. We now report that ETV6-NTRK3 expression in NIH3T3 cells leads to constitutive activation of Mek1 and Akt, as well as to constitutively high expression of cyclin D1. ETV6-NTRK3-induced soft agar colony formation was almost completely abolished by inhibition of either the Ras-Raf1-Mek1-Erk1/2 or the phosphatidylinositol 3'-kinase-Akt pathway. Moreover, this inhibition dramatically reduced expression of cyclin D1. Our results indicate that ETV6-NTRK3 transformation involves a link between known NTRK3 signaling pathways and aberrant cell cycle progression and that Mek1 and Akt activation act synergistically to mediate these effects.
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Affiliation(s)
- C Tognon
- Department of Pathology, BC Research Institute for Children's and Women's Health, Vancouver, British Columbia, V6H 3V4
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Westen D, Morrison K. A multidimensional meta-analysis of treatments for depression, panic, and generalized anxiety disorder: an empirical examination of the status of empirically supported therapies. J Consult Clin Psychol 2001; 69:875-99. [PMID: 11777114] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The authors report a meta-analysis of high-quality studies published from 1990-1998 on the efficacy of manualized psychotherapies for depression, panic disorder, and generalized anxiety disorder (GAD) that bear on the clinical utility and external validity of empirically supported therapies. The results suggest that a substantial proportion of patients with panic improve and remain improved; that treatments for depression and GAD produce impressive short-term effects: that most patients in treatment for depression and GAD do not improve and remain improved at clinically meaningful follow-up intervals: and that screening procedures used in many studies raise questions about generalizability, particularly in light of a systematic relation across studies between exclusion rates and outcome. The data suggest the importance of reporting, in both clinical trials and meta-analyses, a range of outcome indices that provide a more comprehensive, multidimensional portrait of treatment effects and their generalizability. These include exclusion rates, percent improved, percent recovered, percent who remained improved or recovered at follow-up, percent seeking additional treatment at follow-up, and data on both completer and intent-to-treat samples.
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Affiliation(s)
- D Westen
- Center for Anxiety and Related Disorders and Department of Psychology, Boston University, Massachusetts 02215, USA.
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Murray-Johnson L, Witte K, Liu WY, Hubbell AP, Sampson J, Morrison K. Addressing cultural orientations in fear appeals: promoting AIDS-protective behaviors among Mexican immigrant and African American adolescents and American and Taiwanese college students. J Health Commun 2001; 6:335-358. [PMID: 11783667 DOI: 10.1080/108107301317140823] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Fear appeals threatening the individual have been shown to be powerful persuasive devices in the cultures where they have been studied. However, most fear appeal research has been conducted with members of individualist cultures. Individualist cultures place self-needs above group concerns, while collectivist cultures place group needs above self-concerns. Little is known about the effectiveness of fear appeals (or other persuasive strategies) in collectivist cultures. Two studies assessed the effectiveness of AIDS-prevention fear appeals threatening the self versus fear appeals threatening the group (i.e., family) on members of individualist and collectivist cultures. The first study focuses on African American and Mexican immigrant junior high school youth. The second study focuses on U.S. and Taiwanese college undergraduates. The results indicated that fear appeals should address cultural orientation (i.e., individualist versus collectivist orientation) to achieve maximum effectiveness. The results also indicate that one cannot assume cultural orientation based on ethnicity.
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Affiliation(s)
- L Murray-Johnson
- School of Journalism and Communication, The Ohio State University, Columbus 43210, USA.
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Abstract
OBJECTIVE Impaired olfactory identification ability has previously been demonstrated in patients with schizophrenia. This study assessed olfactory function in psychotic and nonpsychotic members of multigenerational families with familial schizophrenia to determine whether deficits were present in both groups. METHOD The University of Pennsylvania Smell Identification Test was administered birhinally to three groups of subjects aged less than 65 years: 19 psychotic and 27 nonpsychotic members of families with familial schizophrenia and 43 age- and sex-matched healthy volunteers. RESULTS Nonpsychotic family members had significantly higher mean University of Pennsylvania Smell Identification Test scores than psychotic family members but were impaired relative to the healthy volunteer group. These group differences could not be accounted for by age, sex, or smoking habit. Fifty-eight percent of the psychotic and 34% of the nonpsychotic family members performed in the microsmic (impaired) range, compared to 9% of the healthy volunteers. CONCLUSIONS Impaired olfactory deficits may aggregate in families with schizophrenia and may be indicative of a genetic predisposition to psychosis.
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Affiliation(s)
- L C Kopala
- Department of Psychiatry, Dalhousie University, 5909 Veterans' Memorial Lane, Halifax, Nova Scotia, Canada B3H 2E2.
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Abunasra HJ, Smolenski RT, Morrison K, Yap J, Sheppard MN, O'Brien T, Suzuki K, Jayakumar J, Yacoub MH. Efficacy of adenoviral gene transfer with manganese superoxide dismutase and endothelial nitric oxide synthase in reducing ischemia and reperfusion injury. Eur J Cardiothorac Surg 2001; 20:153-8. [PMID: 11423289 DOI: 10.1016/s1010-7940(01)00704-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [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: 11/20/2022] Open
Abstract
OBJECTIVE Both superoxide dismutase (SOD), a free radical scavenger, and nitric oxide (NO), a vasodilator with anti-inflammatory properties, have been shown to protect the myocardium from reperfusion injury. They are known to interact in vivo, the influence of which on myocardial protection has not been studied. METHODS Four groups of rats (n=7, per group) were subjected to experimental infarction following injections into the anterior wall of the left ventricle with adenoviral vector encoding beta-galactosidase (group A), eNOS (group B), Mn-SOD (group C) and both eNOS and MnSOD (group D). Hearts were assessed for protein expression and size of infarction. RESULTS Efficiency of gene up regulation was confirmed by immunostaining for eNOS and Mn-SOD, and X-gal staining for beta-gal respectively. In B and D, overexpression of eNOS was demonstrated in cardiac myocytes in addition to that in the endothelium, while in C and D, Mn-SOD was overexpressed in mainly cardiomyocytes. Infarct size was 49.7+/-4.8% in A, and was significantly reduced in the other groups (29.8+/-2.7%, 21.8+/-2.5% and 24.9+/-2.4% in B, C and D respectively). CONCLUSION Adenoviral gene transfer of Mn-SOD was superior to eNOS in reducing the extent of in vivo ischemia-reperfusion injury in the rat heart in our model. The effect of combined application of Mn-SOD and eNOS was not different from their individual effect.
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Affiliation(s)
- H J Abunasra
- Heart Science Centre, Imperial College School of Medicine at Harefield Hospital, Harefield, Middlesex UB9 6JH, UK
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Milad MP, Morrison K, Sokol A, Miller D, Kirkpatrick L. A comparison of laparoscopic supracervical hysterectomy vs laparoscopically assisted vaginal hysterectomy. Surg Endosc 2001; 15:286-8. [PMID: 11344430 DOI: 10.1007/s004640000328] [Citation(s) in RCA: 56] [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] [Subscribe] [Scholar Register] [Received: 04/15/2000] [Accepted: 07/24/2000] [Indexed: 11/26/2022]
Abstract
BACKGROUND We set out to compare the length of stay, costs, and morbidity associated with laparoscopic supracervical hysterectomy (LSH) with laparoscopically assisted vaginal hysterectomy (LAVH). METHODS We performed a cohort analysis of consecutive patients at a university-based medical center from April 1997 through October 1999. RESULTS A total of 145 patients were identified initially; however, 13 cases were excluded because of concomitant procedures (retropubic urethropexy, lymphadenectomy, paravaginal repair). Of the 132 patients included in the study, 27 underwent LSH and 105 underwent LAVH. The two groups were similar with respect to gravidity, parity, uterine weight, and preoperative diagnosis. Patients undergoing LSH had significantly shorter operating times (median, 181 vs 220 min, p = 0.007), briefer hospital stays (median, 1.0 vs 2.0 days, p = 0.0001), and less blood loss (median, 125 vs 400 ml, p = 0.0001). None of the patients submitted to LSH experienced morbidity, as compared with a 13% morbidity rate for LAVH (bladder injury, n = 3; blood loss >1000 ml, n = 7; vaginal cuff hematoma, n = 4; 0% vs 13%; p = 0.04). CONCLUSIONS Patients undergoing laparoscopic supracervical hysterectomy had shorter operating times, shorter hospital stays, and less morbidity than those who underwent laparoscopically assisted vaginal hysterectomy. The practice of routine cervicectomy at laparoscopic hysterectomy should be reconsidered.
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Affiliation(s)
- M P Milad
- Department of Obstetrics and Gynecology, Northwestern University Medical School and Northwestern Memorial Hospital, 333 East Superior Street, Chicago, IL 60611, USA
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Gutt B, Hatzack C, Morrison K, Pöllinger B, Schopohl J. Conventional pituitary irradiation is effective in normalising plasma IGF-I in patients with acromegaly. Eur J Endocrinol 2001; 144:109-16. [PMID: 11182746 DOI: 10.1530/eje.0.1440109] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [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: 11/08/2022]
Abstract
OBJECTIVE For patients in whom acromegaly persists despite pituitary surgery, conventional pituitary irradiation represents an additional treatment option. A 30-60% cure rate is described in the literature, but these studies did not utilise strict rules of remission, such as "safe" GH levels <2.5 microg/l, and age-adjusted normal IGF-I levels. DESIGN AND METHODS We report the outcome of 41 patients with acromegaly who received pituitary conventional external irradiation. The median follow-up time was 12.8 years (3.7-43.4 years) post-radiotherapy. RESULTS The median pre-irradiation GH level was 31.0 microg/l (7.0-210 microg/l). Information on IGF-I levels was only available for 6 patients prior to therapy. Utilising strict rules of remission, one-third (14/41) of our patients had normal biochemical parameters, i.e. "safe" GH (0.5 microg/l (range 0.2-1.6 microg/l)) and normal age-adjusted IGF-I levels (multiple of upper limit of normal range (xULN); 0.45 (0.2-1.0)) at the end of the follow-up period. An additional 9 patients achieved normal levels with adjunctive drug therapy. Furthermore, disease activity was reduced in a considerable proportion of the 18 patients who did not achieve normal biochemical levels (GH: 3.6 microg/l (1.9-15.7 microg/l); xULN of IGF-I: 1.6 (0.9-2.6)). In retrospect, remission is unlikely in patients who had a GH level greater than 52 microg/l (mean+2 s.d. of cured patients) prior to radiotherapy. In addition to the 12 patients with pre-irradiation pituitary functional deficiency, another 11 patients developed symptoms of panhypopituitarism during the 3-year period following irradiation. Within a 6-year period, partial pituitary insufficiency was observed in a further 7 patients, thus necessitating hormone substitution treatment. CONCLUSION Using strict rules of remission, in our cohort we found both a normalisation of IGF-I and safe GH levels in 34% of patients treated for acromegaly with conventional irradiation therapy.
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Affiliation(s)
- B Gutt
- Department of Internal Medicine, Medizinische Klinik Innenstadt, University of Munich, Ziemssenstrasse 1, D-80336 Munich, Germany
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Ensminger SM, Spriewald BM, Witzke O, Morrison K, van Maurik A, Morris PJ, Rose ML, Wood KJ. Intragraft interleukin-4 mRNA expression after short-term CD154 blockade may trigger delayed development of transplant arteriosclerosis in the absence of CD8+ T cells. Transplantation 2000; 70:955-63. [PMID: 11014649 DOI: 10.1097/00007890-200009270-00013] [Citation(s) in RCA: 23] [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: 01/06/2023]
Abstract
BACKGROUND It has recently been shown that, although anti-CD154 induces CD4+ T-cell tolerance, it is unable to prevent allograft rejection mediated by CD8+ T cells. We have also shown that anti-CD154 monotherapy does not protect the graft from the development of transplant arteriosclerosis even in the absence of CD8+ T cells. This study was designed to investigate and characterize possible mechanisms responsible for the development of transplant arteriosclerosis after CD154 blockade in the absence of CD8+ T cells. METHODS C57BL/6 (H2b) recipients received a fully MHC-mismatched BALB/c donor aorta (H2d). Animals were either treated with anti-CD154 monoclonal antibody (mAb) in the presence or absence of CD8 T cells. Histology, morphometric measurements, immunohistochemistry, and the production of alloantibodies (IgM, IgG1, IgG2a) were analyzed on days 14, 30, and 50 after transplantation. Cytokine production within the graft was investigated by competitive reverse transcription-polymerase chain reaction on day 14. RESULTS Combined treatment with anti-CD154 and a depleting CD8 mAb resulted in a delay in the development of transplant arteriosclerosis (intimal proliferation: 33+/-10% vs. 67+/-11% untreated control, day 30) but ultimately did not prevent its progression (intimal proliferation: 55+/-10% vs. 78+/-9% untreated control, day 50). Although there was a significant decrease in the number of CD4+, CD11b+, and CD40+ graft-infiltrating cells and a reduction in the formation of donor-specific IgG1 alloantibodies in recipients treated with anti-CD154 and anti-CD8 mAbs, mRNA for interleukin (IL)-4 was increased, suggesting a shift in the intragraft cytokine profile towards a Th2-like pattern. CONCLUSIONS Our data provide evidence that short-term CD154 blockade is insufficient to prevent transplant arteriosclerosis, even in combination with CD8+ T-cell depletion. Moreover, the increased expression of the Th2 cytokine interleukin-4 within the graft may be responsible for the development of transplant arteriosclerosis in the long term.
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Affiliation(s)
- S M Ensminger
- Nuffield Department of Surgery, University of Oxford, John Radcliffe Hospital, Headington, United Kingdom
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Ensminger SM, Witzke O, Spriewald BM, Morrison K, Morris PJ, Rose ML, Wood KJ. CD8+ T cells contribute to the development of transplant arteriosclerosis despite CD154 blockade. Transplantation 2000; 69:2609-12. [PMID: 10910284 DOI: 10.1097/00007890-200006270-00022] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.8] [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: 11/26/2022]
Abstract
BACKGROUND The CD40-CD154 receptor-ligand pair plays a critical role in allograft rejection by mediating the activation of endothelial cells, antigen-presenting cells, and T cells. Blockade of this interaction prevents acute allograft rejection and leads to prolonged allograft survival in numerous experimental models, but in most cases indefinite graft survival is not achieved due to evolving transplant arteriosclerosis. In this study, we have used a model of transplant arteriosclerosis to investigate whether CD4+ and CD8+ T cells are differentially affected by CD154 blockade. METHODS BALB/c (H2d) aortic grafts were transplanted into C57BL/6 (H2b) recipients treated with anti-CD154 monoclonal antibody in the presence or absence of CD8+ T-cell depletion. Histology and morphometric measurements were performed on day 30 after transplantation. RESULTS Only combined treatment with anti-CD154 and anti-CD8 monoclonal antibodies resulted in a significant reduction of intimal proliferation (33 +/-10% vs. 67+/-14%; untreated control). Administration of either antibody alone did not produce this effect. Thymectomy did not alter the degree of intimal proliferation observed in any of the treatment groups. CONCLUSIONS Our data provide direct evidence that CD8+ T cells are not targeted effectively by CD154 blockade and that the transplant arteriosclerosis seen after CD154 blockade is not due to recent thymic emigrant T cells.
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Affiliation(s)
- S M Ensminger
- Nuffield Department of Surgery, University of Oxford, John Radcliffe Hospital, United Kingdom
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Tschöp M, Strasburger CJ, Töpfer M, Hautmann H, Riepl R, Fischer R, Hartmann G, Morrison K, Appenzeller M, Hildebrandt W, Biollaz J, Bärtsch P. Influence of hypobaric hypoxia on leptin levels in men. Int J Obes (Lond) 2000; 24 Suppl 2:S151. [PMID: 10997640 DOI: 10.1038/sj.ijo.0801309] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M Tschöp
- Department of Medicine, Innenstadt University Hospital, Ludwig-Maximilians University, Munich, Germany.
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