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Malzbender K, Barbarino P, Barkman Ferrell P, Bradshaw A, Brookes AJ, Díaz C, van der Flier WM, Georges J, Hansson O, Hartmanis M, Jönsson L, Krishnan R, MacLeod T, Mangialasche F, Mecocci P, Minguillon C, Middleton L, Pla S, Sardi SP, Schöll M, Suárez-Calvet M, Weidner W, Visser PJ, Zetterberg H, Bose N, Solomon A, Kivipelto M. Validation, Deployment, and Real-World Implementation of a Modular Toolbox for Alzheimer's Disease Detection and Dementia Risk Reduction: The AD-RIDDLE Project. J Prev Alzheimers Dis 2024; 11:329-338. [PMID: 38374739 DOI: 10.14283/jpad.2024.32] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The Real-World Implementation, Deployment, and Validation of Early Detection Tools and Lifestyle Enhancement (AD-RIDDLE) project, recently launched with the support of the EU Innovative Health Initiative (IHI) public-private partnership and UK Research and Innovation (UKRI), aims to develop, test, and deploy a modular toolbox platform that can reduce existing barriers to the timely detection, and therapeutic approaches in Alzheimer's disease (AD), thus accelerating AD innovation. By focusing on health system and health worker practices, AD-RIDDLE seeks to improve and smooth AD management at and between each key step of the clinical pathway and across the disease continuum, from at-risk asymptomatic stages to early symptomatic ones. This includes innovation and improvement in AD awareness, risk reduction and prevention, detection, diagnosis, and intervention. The 24 partners in the AD-RIDDLE interdisciplinary consortium will develop and test the AD-RIDDLE toolbox platform and its components individually and in combination in six European countries. Expected results from this cross-sectoral research collaboration include tools for earlier detection and accurate diagnosis; validated, novel digital cognitive and blood-based biomarkers; and improved access to individualized preventative interventions (including multimodal interventions and symptomatic/disease-modifying therapies) across diverse populations, within the framework of precision medicine. Overall, AD-RIDDLE toolbox platform will advance management of AD, improving outcomes for patients and their families, and reducing costs.
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Affiliation(s)
- K Malzbender
- Miia Kivipelto, MD, PhD, Center for Alzheimer's Research, Karolinska Universitetssjukhuset, Karolinska Vägen 37 A, QA32, 171 64 Solna, Sweden, , Phone: +46 73 99 409 22
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Lancaster JJ, Grijalva A, Fink J, Ref J, Daugherty S, Whitman S, Fox K, Gorman G, Lancaster LD, Avery R, Acharya T, McArthur A, Strom J, Pierce MK, Moukabary T, Borgstrom M, Benson D, Mangiola M, Pandey AC, Zile MR, Bradshaw A, Koevary JW, Goldman S. Biologically derived epicardial patch induces macrophage mediated pathophysiologic repair in chronically infarcted swine hearts. Commun Biol 2023; 6:1203. [PMID: 38007534 PMCID: PMC10676365 DOI: 10.1038/s42003-023-05564-w] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 11/09/2023] [Indexed: 11/27/2023] Open
Abstract
There are nearly 65 million people with chronic heart failure (CHF) globally, with no treatment directed at the pathologic cause of the disease, the loss of functioning cardiomyocytes. We have an allogeneic cardiac patch comprised of cardiomyocytes and human fibroblasts on a bioresorbable matrix. This patch increases blood flow to the damaged heart and improves left ventricular (LV) function in an immune competent rat model of ischemic CHF. After 6 months of treatment in an immune competent Yucatan mini swine ischemic CHF model, this patch restores LV contractility without constrictive physiology, partially reversing maladaptive LV and right ventricular remodeling, increases exercise tolerance, without inducing any cardiac arrhythmias or a change in myocardial oxygen consumption. Digital spatial profiling in mice with patch placement 3 weeks after a myocardial infarction shows that the patch induces a CD45pos immune cell response that results in an infiltration of dendritic cells and macrophages with high expression of macrophages polarization to the anti-inflammatory reparative M2 phenotype. Leveraging the host native immune system allows for the potential use of immunomodulatory therapies for treatment of chronic inflammatory diseases not limited to ischemic CHF.
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Affiliation(s)
- J J Lancaster
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - A Grijalva
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - J Fink
- Division of Blood & Marrow Transplant & Cellular Therapy, Department of Pediatrics, Masonic Cancer Center, University of Minnesota, Minneapolis, MN, 55455, USA
| | - J Ref
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - S Daugherty
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - S Whitman
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - K Fox
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
- Division of Cardiothoracic Surgery, Department of Surgery, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - G Gorman
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - L D Lancaster
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - R Avery
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - T Acharya
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - A McArthur
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - J Strom
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - M K Pierce
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - T Moukabary
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - M Borgstrom
- Research & Discovery Tech, Research Computing Specialist, Principal, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - D Benson
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
| | - M Mangiola
- Department of Pathology, NYU Grossman School of Medicine, New York City, NY, 11016, USA
| | - A C Pandey
- Section of Cardiology, Tulane University Heart and Vascular Institute, John W. Deming Department of Medicine, Section of Cardiology, Department of Medicine, Southeast Louisiana Veterans Healthcare System, Tulane University School of Medicine, New Orleans, LA, 70122, USA
| | - M R Zile
- Ralph H. Johnson VA Medical Center, Division of Cardiology, Medical University of South Carolina, Thurmond/Gazes Building, 30 Courtenay Drive, Charleston, SC, 29425, USA
| | - A Bradshaw
- Ralph H. Johnson VA Medical Center, Division of Cardiology, Medical University of South Carolina, Thurmond/Gazes Building, 30 Courtenay Drive, Charleston, SC, 29425, USA
| | - J W Koevary
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA
- Biomedical Engineering, College of Engineering, University of Arizona, 1127 E. James E. Rogers Way, Tucson, AZ, 85721, USA
| | - S Goldman
- Sarver Heart Center, Department of Medicine, University of Arizona, 1501 North Campbell Avenue, Tucson, AZ, 85724, USA.
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Chmelo J, Phillips AW, Greystoke A, Bradshaw A, Sinclair RCF. Comparison of the effects of FLOT and ECX chemotherapy for oesophagogastric adenocarcinoma on cardiopulmonary reserve. Br J Surg 2021; 108:e328-e329. [PMID: 34291278 DOI: 10.1093/bjs/znab230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/18/2021] [Accepted: 06/01/2021] [Indexed: 11/13/2022]
Affiliation(s)
- J Chmelo
- Northern Oesophagogastric Unit, Royal Victoria Infirmary, Newcastle upon Tyne, UK
| | - A W Phillips
- Northern Oesophagogastric Unit, Royal Victoria Infirmary, Newcastle upon Tyne, UK
| | - A Greystoke
- Northern Centre for Cancer Care, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - A Bradshaw
- Northern Centre for Cancer Care, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - R C F Sinclair
- Department of Anaesthesia and Critical Care Medicine, Royal Victoria Infirmary, Newcastle upon Tyne, UK
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Affiliation(s)
- Anna Bradshaw
- Anna Bradshaw is an FNP student at Simmons University in Boston, Mass., and a nurse at the Dartmouth-Hitchcock Cheshire Medical Center in Keene, N.H. Sarah Raphaelson is also an FNP student at Simmons University, as well as a nurse at Beth Israel Deaconess-Milton in Milton, Mass
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Larcher A, Rosiello G, Mazzone E, Minervini A, Mari A, Di Maida F, Bensalah K, Peyronnet B, Khene Z, Schiavina R, Bianchi L, Mottrie A, De Naeyer G, Antonelli A, Furlan M, Rha K, Almujalhem A, Derweesh I, Bradshaw A, Kaouk J, Sawczyn G, Bertolo R, Montorsi F, Capitanio U. The iron study: investigation of robot-assisted versus open nephron-sparing surgery. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)35478-1] [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] Open
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Meagher M, Mir M, Rubio J, Campi R, Minervini A, Kriegmair M, Heck M, Van Bruwaene S, Linares E, Hevia V, Musquera M, D’anna M, Ghali F, Patel D, Bradshaw A, Autorino R, Guruli G, Rousel E, Albertsen M, Pavan N, Claps F, Antonelli A, Palumbo C, Marchioni M, Derweesh I. Impact of metastasectomy on cancer specific and overall survival in metastatic renal cell carcinoma: Analysis of the REMARCC registry. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33444-3] [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] Open
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Patel D, Ghali F, Meagher M, Bradshaw A, Patel S, Dutt R, Miller N, Keiner C, Cotta B, Murphy J, Derweesh I. The impact of delay in time to surgery on outcomes of localized renal cell carcinoma: Analysis based on tumor size. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33204-3] [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] Open
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Dutt R, Meagher M, Patil D, Saito K, Patel D, Ghali F, Keiner C, Miller N, Bradshaw A, Wan F, Yasuda Y, Fujii Y, Master V, Derweesh I. Impact of diabetes mellitus on functional and survival outcomes in renal cell carcinoma: An international multicenter study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32709-9] [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] Open
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Larcher A, Rosiello G, Minervini A, Mari A, Bensalah K, Khene Z, Schiavina R, Bianchi L, Brunocilla E, Mottrie A, De Naeyer G, Antonelli A, Furlan M, Simeone C, Rha K, Almujalhem A, Derweesh I, Bradshaw A, Ghali F, Kaouk J, Sawczyn G, Bertolo R, Capitanio U, Montorsi F. Oncologic outcomes after robot-assisted partial nephrectomy in the IRON study: Results from a large, global, multicentric analysis of patients with clinically localized kidney cancer. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33900-8] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Bradshaw A, Bosworth A, Walker-Bone K, Lunt L, Verstappen S. SAT0072 THE IMPACT OF COMORBIDITIES ON ABSENTEEISM, PRESENTEEISM AND EMPLOYMENT STATUS IN PEOPLE LIVING WITH RHEUMATOID ARTHRITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.5467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Many people with rheumatoid arthritis (RA) have comorbidities. However, there is limited research on the impact of multimorbidity on absenteeism (e.g. sick leave) and presenteeism (i.e. reduced productivity while at work due to ill health) in people with RA.Objectives:i) to explore the impact of comorbidities on absenteeism and presenteeism in patients with RA and ii) to evaluate the association between multimorbidity and employment status.Methods:A cross-sectional survey was conducted by the National Rheumatoid Arthritis Society (NRAS), UK, collecting information on: demographics, education, employment status (i.e. employed (Empl), stopped/retired early because of RA (Stop_RA), stopped/retired early because of other health issues (Stop_Health)), and disease related variables (e.g. symptom duration, rheumatoid arthritis impact of disease (RAID) questionnaire). Participants were asked to report whether they had or were treated for any of 15 predefined comorbidities (categorised into 0, 1, 2, 3, or ≥4 (Table)). Percentage of number of hours missed due RA (i.e. absenteeism) and presenteeism (10-point Likert scale) were assessed using the Work Productivity and Activity Impairment Questionnaire (WPAI-RA). For the purpose of this study both absenteeism and presenteeism outcomes were dichotomized (no presenteeism/absenteeism versus any) and only patients aged <65yrs were included. Logistic regression analysis were applied to assess the association between number of comorbidities and absenteeism/presenteeism, adjusting for the categorical variables age, gender and education. Chi2-square test was applied to assess frequencies of individual comorbidities between the three employment status groups.Results:868 participants were included; 91.7% women with a median symptom duration of 8.3 years [IQR 4.4-13.7]. The average RAID score was 5.2 (SD 2.2). 80.4% were in paid employment, including those currently on sick leave, 16.9% stopped early because of their RA and 2.7% reported stopping early because of other health reasons. In those employed most commonly occurring comorbidities were: back pain (28.8%%), osteoarthritis (21.5%), depression (26.3%) and anxiety (22.6%). Compared to people with RA with no comorbidities, the odds associated with time off work due to RA increased from 1.7 up to 3.4 with increasing number of comorbidities (Table). Although a similar trend was observed for presenteeism, the effect sizes were smaller. Significant differences (p<0.05) in frequencies of the following comorbidities were observed between the three employment status groups (Empl, Stop_RA, Stop_Health, respectively): heart disease (3.9%, 7.9%, 20.0%), blood pressure (18.0%, 29.5%, 36.7%), lung disease (5.7%, 16.3%, 26.7%), diabetes (4.4%, 4.2%, 26.7%), ulcer (6.1%, 11.1%, 13.3%), cancer (3.3%, 2.6%, 13.3%), depression (26.3%, 33.6%, 50.0%), OA (21.5%, 44.7%, 63.33%), and back pain (28.8%, 48.4%, 60.0%).Absenteeism (yes/no)Presenteeism (yes/no)Number of comorbiditiesNOR95%CIOR95%CI0206Ref.Ref.11741.701.06-2.711.661.00-2.7321361.771.08-2.921.991.13-2.863851.751.00-3.081.530.82-2.864-15max863.381.98-5.782.641.28-5.44OR=odds ratio; 95%CI=95% confidence interval; Comorbidities included: heart disease, blood pressure, lung disease, diabetes, ulcer or stomach disease, kidney disease, liver disease, anaemia or other blood disease, cancer, depression, anxiety, OA, back pain, osteoporosis and Sjögren. Bold figuresP<0.05.Conclusion:Although the study is cross-sectional and no temporal association can be determined, this study shows that not only personal and work related contextual factors should be considered when preventing worker productivity loss, but also other comorbidities.Disclosure of Interests:A. Bradshaw: None declared, Ailsa Bosworth Speakers bureau: a number of pharmaceutical companies for reasons of inhouse training, advisory boards etc., K. Walker-Bone: None declared, Laura Lunt: None declared, Suzanne Verstappen Grant/research support from: BMS, Consultant of: Celltrion, Speakers bureau: Pfizer
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Nilipour Y, Fatehi F, Sanatinia S, Bradshaw A, Duff J, Lochmüller H, Horvath R, Nafissi S. Multiple acyl-coenzyme A dehydrogenase deficiency shows a possible founder effect and is the most frequent cause of lipid storage myopathy in Iran. J Neurol Sci 2020; 411:116707. [PMID: 32007756 DOI: 10.1016/j.jns.2020.116707] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 06/25/2019] [Revised: 01/20/2020] [Accepted: 01/22/2020] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Multiple acyl-coenzyme A dehydrogenase deficiency disorder (MADD) is a relatively rare disorders of lipid metabolism. This study aimed to investigate the demographic, clinical, and genetic features of MADD in Iran. METHODS Twenty-nine patients with a definite diagnosis of lipid storage myopathy were recruited. All patients were tested for mutation in the ETFDH gene, and 19 had a biallelic mutation in this gene. RESULTS Of 19 patients with definite mutations, 11 (57.9%) were female, and the median age was 31 years. Twelve patients had c.1130 T > C (p.L377P) mutation in exon 10. Two patients had two novel heterozygote pathogenic variants (c.679C > T (p.P227S) in exon 6 and c.814G > A (p.G272R) in exon 7) and two patients had c.1699G > A (p.E567K) in exon 13. Before treatment, the median muscle power was 4.6 (IQR: 4-4.7) that increased to 5 (IQR: 5-5) after treatment (Z = -3.71, p = .000). The median CK was 1848 U/l (IQR: 1014-3473) before treatment, which declined to 188 U/l (IQR: 117-397) after treatment (Z = -3.41, p = .001). Sixteen patients (84.2%) had full recovery after the treatment. The disease onset was earlier (12 years of age; IQR: 6-18) in patients with homozygous c.1130 T > C; p.(L377P) mutation compared to other ETFDH mutations (30 years of age; IQR: 20-35) (p = .00). DISCUSSION MADD has different clinical presentations. As the patients respond favorably to treatment, early diagnosis and treatment may prevent the irreversible complications of the disease.
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Affiliation(s)
- Yalda Nilipour
- Pediatric pathology research center, Research institute for children's health, AND Mofid Children Hospital, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farzad Fatehi
- Neurology Department, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran; Aix Marseille University, CNRS (UMR 7339), Centre de Resonance Magnétique Biologique et Medicale, Faculte de Medecine, 27 bd. J. Moulin, 13005 Marseille, France
| | - Saleheh Sanatinia
- Neurology Department, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Anna Bradshaw
- Wellcome Centre for Mitochondrial Research, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Jennifer Duff
- Wellcome Centre for Mitochondrial Research, Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Hanns Lochmüller
- Department of Neuropediatrics and Muscle Disorders, Medical Center - the University of Freiburg, Faculty of Medicine, Freiburg, Germany; Centro Nacional de Análisis Genómico (CNAG-CRG), Center for Genomic Regulation, Barcelona Institute of Science and Technology (BIST), Barcelona, Spain; Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, Canada; Division of Neurology, Department of Medicine, The Ottawa Hospital, Ottawa, Canada
| | - Rita Horvath
- Department of Clinical Neurosciences, University of Cambridge School of Clinical Medicine, Cambridge, UK.
| | - Shahriar Nafissi
- Neurology Department, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
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Iqbal M, Vashisht G, Mulvenna P, McDonald F, Turnbull H, Atherton P, Bradshaw A, Simmons T, Kovarik J, Singhal S, McMenemin R, Greystoke A. Hypofractionated concurrent chemoradiation in non-small cell lung cancer (NSCLC): efficacy and toxicity of the SOCCAR trial regime in real world practice. Lung Cancer 2018. [DOI: 10.1016/s0169-5002(18)30175-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Calic Z, Bradshaw A, McGarvie L, Pogson J, Young A, Cordato D, Cappelen-Smith C, Welgampola M. Canal and otolith test characteristics in vestibular neuritis and posterior circulation stroke. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.437] [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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Khoder A, Sever M, Palanicawandar R, Pello O, Loaiza S, Bray E, Bradshaw A, Uddin S, Atta M, Selvaratnam V, Sevillano B, Monsalvo S, Altaf S, Innes A, Lozano S, Pavlu J, Auner H, Apperley J, Olavarria E, Kanfer E. Plerixafor effectively rescues biosimilar G-CSF-alone-based stem cell mobilisation failures. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.123] [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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Bansagi B, Griffin H, Whittaker RG, Antoniadi T, Evangelista T, Miller J, Greenslade M, Forester N, Duff J, Bradshaw A, Kleinle S, Boczonadi V, Steele H, Ramesh V, Franko E, Pyle A, Lochmüller H, Chinnery PF, Horvath R. Genetic heterogeneity of motor neuropathies. Neurology 2017; 88:1226-1234. [PMID: 28251916 PMCID: PMC5373778 DOI: 10.1212/wnl.0000000000003772] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 01/06/2017] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE To study the prevalence, molecular cause, and clinical presentation of hereditary motor neuropathies in a large cohort of patients from the North of England. METHODS Detailed neurologic and electrophysiologic assessments and next-generation panel testing or whole exome sequencing were performed in 105 patients with clinical symptoms of distal hereditary motor neuropathy (dHMN, 64 patients), axonal motor neuropathy (motor Charcot-Marie-Tooth disease [CMT2], 16 patients), or complex neurologic disease predominantly affecting the motor nerves (hereditary motor neuropathy plus, 25 patients). RESULTS The prevalence of dHMN is 2.14 affected individuals per 100,000 inhabitants (95% confidence interval 1.62-2.66) in the North of England. Causative mutations were identified in 26 out of 73 index patients (35.6%). The diagnostic rate in the dHMN subgroup was 32.5%, which is higher than previously reported (20%). We detected a significant defect of neuromuscular transmission in 7 cases and identified potentially causative mutations in 4 patients with multifocal demyelinating motor neuropathy. CONCLUSIONS Many of the genes were shared between dHMN and motor CMT2, indicating identical disease mechanisms; therefore, we suggest changing the classification and including dHMN also as a subcategory of Charcot-Marie-Tooth disease. Abnormal neuromuscular transmission in some genetic forms provides a treatable target to develop therapies.
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Affiliation(s)
- Boglarka Bansagi
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Helen Griffin
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Roger G Whittaker
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Thalia Antoniadi
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Teresinha Evangelista
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - James Miller
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Mark Greenslade
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Natalie Forester
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Jennifer Duff
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Anna Bradshaw
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Stephanie Kleinle
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Veronika Boczonadi
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Hannah Steele
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Venkateswaran Ramesh
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Edit Franko
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Angela Pyle
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Hanns Lochmüller
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Patrick F Chinnery
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK
| | - Rita Horvath
- From the MRC Centre for Neuromuscular Diseases and John Walton Muscular Dystrophy Research Centre, Institute of Genetic Medicine (B.B., H.G., T.E., J.D., A.B., V.B., H.S., E.F., A.P., H.L., P.F.C., R.H.), and Institute of Neuroscience (R.G.W., J.M.), Newcastle University, Newcastle upon Tyne; Bristol Genetics Laboratory (T.A., M.G., N.F.), Pathology Sciences, North Bristol NHS Trust, Southmead Hospital; Medical Genetic Center (S.K.), Munich, Germany; Department of Paediatric Neurology (V.R.), Royal Victoria Infirmary, Newcastle upon Tyne Foundation Hospitals NHS Trust; Nuffield Department of Clinical Neurosciences (E.F.), University of Oxford; and Department of Clinical Neurosciences (P.F.C.), Cambridge Biomedical Campus, University of Cambridge, UK.
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Tamaddon M, Burrows M, Ferreira SA, Dazzi F, Apperley JF, Bradshaw A, Brand DD, Czernuszka J, Gentleman E. Monomeric, porous type II collagen scaffolds promote chondrogenic differentiation of human bone marrow mesenchymal stem cells in vitro. Sci Rep 2017; 7:43519. [PMID: 28256634 PMCID: PMC5335259 DOI: 10.1038/srep43519] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 01/25/2017] [Indexed: 12/20/2022] Open
Abstract
Osteoarthritis (OA) is a common cause of pain and disability and is often associated with the degeneration of articular cartilage. Lesions to the articular surface, which are thought to progress to OA, have the potential to be repaired using tissue engineering strategies; however, it remains challenging to instruct cell differentiation within a scaffold to produce tissue with appropriate structural, chemical and mechanical properties. We aimed to address this by driving progenitor cells to adopt a chondrogenic phenotype through the tailoring of scaffold composition and physical properties. Monomeric type-I and type-II collagen scaffolds, which avoid potential immunogenicity associated with fibrillar collagens, were fabricated with and without chondroitin sulfate (CS) and their ability to stimulate the chondrogenic differentiation of human bone marrow-derived mesenchymal stem cells was assessed. Immunohistochemical analyses showed that cells produced abundant collagen type-II on type-II scaffolds and collagen type-I on type-I scaffolds. Gene expression analyses indicated that the addition of CS - which was released from scaffolds quickly - significantly upregulated expression of type II collagen, compared to type-I and pure type-II scaffolds. We conclude that collagen type-II and CS can be used to promote a more chondrogenic phenotype in the absence of growth factors, potentially providing an eventual therapy to prevent OA.
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Affiliation(s)
- M. Tamaddon
- Department of Materials, University of Oxford, Oxford OX1 3PH, UK
- Craniofacial Development and Stem Cell Biology, King’s College London, London SE1 9RT, UK
| | - M. Burrows
- Craniofacial Development and Stem Cell Biology, King’s College London, London SE1 9RT, UK
| | - S. A. Ferreira
- Craniofacial Development and Stem Cell Biology, King’s College London, London SE1 9RT, UK
| | - F. Dazzi
- Division of Cancer Studies, Rayne Institute, King’s College London, London SE5 9NU, UK
| | - J. F. Apperley
- Centre for Haematology, Department of Medicine, Imperial College London, London W12 0NN, UK
- John Goldman Centre for Cellular Therapy, Imperial College Healthcare NHS Trust, London W12 0HS, UK
| | - A. Bradshaw
- John Goldman Centre for Cellular Therapy, Imperial College Healthcare NHS Trust, London W12 0HS, UK
| | - D. D. Brand
- Research Service, Memphis VA Medical Center, Departments of Medicine and Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38104, USA
| | - J. Czernuszka
- Department of Materials, University of Oxford, Oxford OX1 3PH, UK
| | - E. Gentleman
- Craniofacial Development and Stem Cell Biology, King’s College London, London SE1 9RT, UK
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McClure MO, Whitby D, Patience C, Gooderham NJ, Bradshaw A, Cheingsong-Popov R, Weber JN, Davies DS, Cook GMW, Keynes RJ, Weiss RA. Dextrin Sulphate and Fucoidan are Potent Inhibitors of HIV Infection in vitro. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/095632029100200304] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Two sulphated polysaccharides, fucoidan (a derivative of seaweed) and the newly synthesised dextrin sulphate, were tested for their ability to inhibit human immunodeficiency virus (HIV) infection in vitro in comparison to dextran sulphate and azidothymidine. They were found to be potent inhibitors of diverse strains of HIV-1 in a variety of human cell lines and in peripheral blood lymphocytes (PBL) using a range of assays, including cell-free and cell-to-cell spread of infection. The drugs did not adversely affect cell proliferation or protein metabolism of PBL. As dextrin sulphate is less potent than dextran sulphate in prolonging thrombin-induced fibrin clotting time, it merits further development as an antiviral agent.
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Affiliation(s)
- M. O. McClure
- Chester Beatty Laboratories, Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
| | - D. Whitby
- Chester Beatty Laboratories, Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
| | - C. Patience
- Chester Beatty Laboratories, Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
| | - N. J. Gooderham
- Department of Medicine and Department of Clinical Pharmacology, Royal Postgraduate Medical School, Hammersmith Hospital, London, UK
| | - A. Bradshaw
- Department of Medicine and Department of Clinical Pharmacology, Royal Postgraduate Medical School, Hammersmith Hospital, London, UK
| | - R. Cheingsong-Popov
- Department of Medicine and Department of Clinical Pharmacology, Royal Postgraduate Medical School, Hammersmith Hospital, London, UK
| | - J. N. Weber
- Department of Medicine and Department of Clinical Pharmacology, Royal Postgraduate Medical School, Hammersmith Hospital, London, UK
| | - D. S. Davies
- Department of Medicine and Department of Clinical Pharmacology, Royal Postgraduate Medical School, Hammersmith Hospital, London, UK
| | - G. M. W. Cook
- Department of Anatomy, University of Cambridge, Cambridge, UK
| | - R. J. Keynes
- Department of Anatomy, University of Cambridge, Cambridge, UK
| | - R. A. Weiss
- Chester Beatty Laboratories, Institute of Cancer Research, 237 Fulham Road, London SW3 6JB, UK
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Pickles R, Iqbal S, Mulvenna P, Mcmenemin R, Kelly E, Atherton P, Turnbull H, Simmons T, Bradshaw A, Mackenzie L, Raven E. 137 10 years of CHART (continuous hyperfractionated accelerated radiotherapy) for non-small cell lung cancer (NSCLC) at NCCC. Lung Cancer 2016. [DOI: 10.1016/s0169-5002(16)30154-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bradshaw A, Lyons J, Logue J, Choudhury A. Thirty-day Mortality for Patients with Genitourinary Malignancies Being Treated with Chemotherapy. Clin Oncol (R Coll Radiol) 2009; 21:730. [DOI: 10.1016/j.clon.2009.07.001] [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] [Received: 06/16/2009] [Accepted: 07/03/2009] [Indexed: 11/28/2022]
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Abstract
In June 2008 the UK government, supported by the Royal College of Nursing, stated that nursing care would be measured for compassion. This paper considers the implications of this statement by critically examining the relationship of compassion to care from a variety of perspectives. It is argued that the current market-driven approaches to healthcare involve redefining care as a pale imitation, even parody, of the traditional approach of the nurse as "my brother's keeper". Attempts to measure such parody can only measure artificial techniques and give rise to a McDonald's-type nursing care rather than heartfelt care. The arguments of this paper, although applied to nursing, also apply to medicine and healthcare generally.
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Affiliation(s)
- A Bradshaw
- Oxford Brookes University, School of Health and Social Care, Oxford, UK.
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Harris P, Hussey D, Watson D, Mayne G, Bradshaw A, Joniau S, Tan L, Wormald P, Carney A. Reflux changes in adenoidal hyperplasia: a controlled prospective study to investigate its aetiology. Clin Otolaryngol 2009; 34:120-6. [DOI: 10.1111/j.1749-4486.2008.01852.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Córdova-Fraga T, Hernández E, Huerta R, Vargas M, Bradshaw A, Sosa M. Assessment of gastric retention time through a magnetic indigestible particle: Preliminary results. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.ics.2007.02.041] [Citation(s) in RCA: 2] [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: 11/26/2022]
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Abstract
The electrical control activity of the large intestine was recorded in six pigs using a SQUID magnetometer. The study was performed in pre- and post-colectomy/sham-colectomy conditions. The biomagnetic field associated with colonic ECA changed drastically in subjects that underwent the colectomy procedure, whereas the signal for the control animals was nearly unchanged. Power spectral analysis was used to determine the average changes of dominant frequency and amplitude between baseline versus colectomy and sham-colectomy conditions. The dominant frequency was increased by 68 +/- 24% (versus 2 +/- 3% in control). The amplitude was decreased by 69 +/- 24% (versus 13 +/- 17% in control). This is the first study of transabdominal magnetic fields associated with colonic ECA, suggests some of the side effects generated in colectomy surgery and shows the utility of the biomagnetic technique in studies of the large intestine.
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Affiliation(s)
- T Cordova-Fraga
- Department of Surgery, Vanderbilt University, Nashville, TN 37232, USA
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Abstract
A systematic procedure for the synthesis of active controllers for vibratory systems is described. This method is based upon the use of modal control theory and is applicable to lumped-parameter linear systems possessing any number of degrees of freedom.
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Affiliation(s)
- B. Porter
- Department of Mechanical Engineering, University of Salford, Salford M5 4WT. Member of the Institution
| | - A. Bradshaw
- Department of Mechanical Engineering, University of Salford
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Abstract
OBJECTIVE To assess the validity of using the measurement of haemoglobin as a primary screen test at point-of-care in general practice. METHODS 1100 consecutive full blood counts carried out at Hammersmith Hospital haematology laboratory on blood samples sent by the general practitioners in the area were reviewed. Where haemoglobin was in the normal range all the parameters of a full blood count were checked and a blood film was screened in order to identify any abnormal features occurring in the absence of anaemia. RESULTS Haemoglobin was normal in 81% of the samples, and in 81% of this set none of the blood count components showed any abnormal features (i.e. outside two standard deviations of normal reference range). The remaining 19% of cases included 32 with iron deficiency, 26 with high MCV, 84 with leucocyte abnormalities (neutrophilia, neutropenia, lymphocytosis, eosinophilia, monocytosis) and 19 with platelet counts either too high or too low. The predictive value of a normal full blood count from a normal haemoglobin was 0.81. However, when the limits of normal reference values were set at three standard deviations only 7% of the cases showed abnormal features and the predictive value of normality from a normal haemoglobin increased to 0.92. CONCLUSION There are now simple and suitable devices available for measuring haemoglobin at point-of-care, away from a laboratory. This provides a useful screening test in general practice as a full blood count would, as a rule, be required only in the small proportion of cases where anaemia is detected or the patient's history and/or clinical signs specifically indicate the need for this further investigation. This approach should contribute to more efficient, convenient and economical practice without compromising clinical management.
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Affiliation(s)
- S M Lewis
- WHO Collaborating Centre for Haematology Technology, Department of Haematology, Imperial College, Hammersmith Hospital, London W12 0NN, UK.
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Evans-Jones G, Kay SPJ, Weindling AM, Cranny G, Ward A, Bradshaw A, Hernon C. Congenital brachial palsy: incidence, causes, and outcome in the United Kingdom and Republic of Ireland. Arch Dis Child Fetal Neonatal Ed 2003; 88:F185-9. [PMID: 12719390 PMCID: PMC1721533 DOI: 10.1136/fn.88.3.f185] [Citation(s) in RCA: 146] [Impact Index Per Article: 7.0] [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: 11/03/2022]
Abstract
OBJECTIVES To determine the incidence and study the causes and outcome of congenital brachial palsy (CBP). DESIGN Active surveillance of newborn infants using the British Paediatric Surveillance Unit notification system and follow up study of outcome at 6 months of age. SETTING The United Kingdom and Republic of Ireland. PARTICIPANTS Newborn infants presenting with a flaccid paresis of the arm (usually one, rarely both) born between April 1998 and March 1999. MAIN OUTCOME MEASURES Extent of the lesion at birth and degree of recovery at 6 months of age. FINDINGS There were 323 confirmed cases giving an incidence of 0.42 per 1000 live births (1 in 2300). Significant associated risk factors in comparison with the normal population were shoulder dystocia (60% v 0.3%), high birth weight with 53% infants weighing more than the 90th centile, and assisted delivery (relative risk (RR) 3.4, 95% confidence interval (CI) 2.9 to 3.9, p = 0.0001). There was a considerably lower risk of CBP in infants delivered by caesarean section (RR 7, 95% CI 2 to 56, p = 0.002). At about 6 months of age, about half of the infants had recovered fully, but the remainder showed incomplete recovery including 2% with no recovery. The relative risk of partial or no recovery in infants with extensive lesions soon after birth compared with those with less extensive lesions was 11.28 (95% CI 2.38 to 63.66, p = 0.000005). CONCLUSIONS The incidence of CBP in the United Kingdom and Republic of Ireland is strikingly similar to that previously reported nearly 40 years ago. Most cases are due to trauma at delivery, which is not necessarily excessive or inappropriate. Given the uncertainty about the appropriate management of these infants, serious consideration should be given to a formal clinical trial of microsurgical nerve repair.
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Affiliation(s)
- G Evans-Jones
- Women and Children's Directorate, Countess of Chester Hospital NHS Trust, Liverpool Road, Chester CH2 1UL, UK.
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Abstract
This article closely examines the way three people dealt with the theodicy question. The three study subjects participated in extended interviews about their religious beliefs and activities, past and present. The interviews were summarized and analyzed to identify the person's religious resources, statements about theodicy, and mental well-being. The subjects' comments highlight the unique and diverse ways in which people wrestle with theodicy. They also indicate that dealing with the question can extend over many years. Implications for ministry are discussed.
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Affiliation(s)
- Anna Bradshaw
- Department of Religion, Health and Human Values, Rush-Presbyterian-St., Luke's Medical Center, 1653 West Congress Parkway, Chicago, IL 60612-3833, USA
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McCue R, Bradshaw A, Burns W. Ederly patients receiving medication for memory problems. Arch Clin Neuropsychol 2000. [DOI: 10.1093/arclin/15.8.741a] [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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Natale M, Patton D, Burns W, Carone D, Simpson R, Bradshaw A, Widmayer S, Puranick S, Peterson L, Starratt C. Receptive language performance as an estimator of verbal intellectual performance in children with head injuries. Arch Clin Neuropsychol 2000. [DOI: 10.1093/arclin/15.8.808] [Citation(s) in RCA: 2] [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: 11/14/2022] Open
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Carone D, Patton D, Bums W, Starrat C, Natale M, Simpson R, Bradshaw A, Widmayer S, Peterson L, Puranik S. Pediatric closed head injury: using symbol search as a substitute on the WISC-III. Arch Clin Neuropsychol 2000. [DOI: 10.1093/arclin/15.8.795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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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Carone D, Patton D, Burns W, Starrat C, Natale M, Simpson R, Bradshaw A, Widmayer S, Peterson L, Puranik S. Pediatric closed head injury: differential impact on verbal and visual--spatial memory, and intelligence. Arch Clin Neuropsychol 2000. [DOI: 10.1093/arclin/15.8.796] [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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Simpson R, Burns W, Patton D, Widmayer S, Carone D, Natale M, Bradshaw A, Starvant C, Peterson L, Puranik S. How much does the WRAML Screening Index over-estimate general memory in clinical pediatric populations? Arch Clin Neuropsychol 2000. [DOI: 10.1093/arclin/15.8.803a] [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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McCue R, Bradshaw A, Burns W. WMS-III subtest failure in the assessment of patients with memory impairments. Arch Clin Neuropsychol 2000. [DOI: 10.1093/arclin/15.8.744] [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: 11/14/2022] Open
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Patton D, Carone D, Burns W, Natale M, Simpson R, Bradshaw A, Widmayer S, Peterson L, Starratt C, Puranik S. Pediatric closed head injury affects the relationship between achievement and intelligence. Arch Clin Neuropsychol 2000. [DOI: 10.1093/arclin/15.8.793] [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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Abstract
In the light of current political and professional debate in the United Kingdom concerning preparing nurses for competence, this paper takes an historical perspective, and considers how nursing competence was defined historically through an analysis of statutory syllabuses and nursing textbooks 1874-1977. Competence was perceived by nursing textbook writers to have four facets. Firstly, it involved the moral character of the nurse; secondly, it required technical knowledge, practical skill and procedure; thirdly, it depended on the role of the ward sister; and fourthly, it relied on the professional etiquette of right relationships. The analysis shows that the traditional system of nursing competence presumed a clearly defined purpose: the production of the bedside nurse, whose function was to care for the sick person. This raises a fundamental question for nursing today: what is the purpose of the modern nurse?
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Affiliation(s)
- A Bradshaw
- RCN Institute, Radcliffe Infirmary, Woodstock Road, Oxford OX2 6HE, UK
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Adebodun F, Scott CE, Cunningham C, Bustamante PM, Bradshaw A, Ping L, Williams KR. Elevated levels of Ca(II) modulate the activity and inhibition of serine proteases: implication in the mechanism of apoptosis. Cell Biochem Funct 2000; 18:59-66. [PMID: 10686584 DOI: 10.1002/(sici)1099-0844(200001/03)18:1<59::aid-cbf850>3.0.co;2-o] [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] [Indexed: 11/10/2022]
Abstract
Elevated levels of intracellular Ca(II) are a prominent feature of apoptosis, a natural form of cell death involved in many physiological and pathological processes. Serine proteases play crucial roles in apoptosis and have been implicated in the genomic DNA degradation and the massive protein degradation that occur during apoptosis. In this study, the effects of the elevated level of Ca(II) on the activity and inhibition of serine proteases were examined by spectrophotometric methods. The effects of the elevated levels of Ca(II), Mg(II), K(I), and Na(I) on the activity and inactivation of three representative members of serine proteases were determined. The level of serine protease activity in CEM-C7-14 leukemic cells was also evaluated in the presence and absence of dexamethasone-induced apoptosis, and also in the presence of A23187, a Ca(II)-ionophore. Among the four metal-ions studied, only Ca(II) was found to significantly enhance the activity of mammalian serine proteases. Ca(II) was also found to significantly protect the enzymes from inhibition, while the other three metal-ions showed no significant effect on the inactivation of the enzymes. Compared to the control sample, the enzymic activity was found to be higher during apoptosis, and in the presence of the Ca(II)-ionophore. Results of this study indicate that Ca(II) can significantly enhance the catalytic efficiency of serine proteases during apoptosis.
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Affiliation(s)
- F Adebodun
- Department of Chemistry, North Carolina A & T State University, 1601 E. Market Street, Greensboro, NC 274211, USA
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Abstract
The TAR syndrome is an inherited disorder characterized by limb abnormalities, especially absent radii, and hypomegakaryocytic thrombocytopenia. Previous reports have included two infants with genitourinary abnormalities. We report a newborn with bilaterally absent radii and foreshortened ulnae, hypoplastic humeri, a left clubfoot, a ventricular septum defect, and persistent thrombocytopenia. This constellation of abnormalities is consistent with the TAR syndrome. In addition, he had a horseshoe kidney with parenchyma of normal appearance. This is the first report of horseshoe kidney in association with the TAR syndrome.
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Affiliation(s)
- A Bradshaw
- Department of Pediatrics, Duke University Medical Center, Durham, NC 27710, USA
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Abstract
It is argued that the current confusion about the role and purpose of the British nurse is a consequence of the modern rejection and consequent fragmentation of the inherited nursing tradition. The nature of this tradition, in which nurses were inducted into the moral virtues of care, is examined and its relevance to patient welfare is demonstrated. Practical suggestions are made as to how this moral tradition might be reappropriated and reinvigorated for modern nursing.
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Affiliation(s)
- A Bradshaw
- RCN Institute, Radcliffe Infirmary, Oxford
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Bassuk JA, Birkebak T, Rothmier JD, Clark JM, Bradshaw A, Muchowski PJ, Howe CC, Clark JI, Sage EH. Disruption of the Sparc locus in mice alters the differentiation of lenticular epithelial cells and leads to cataract formation. Exp Eye Res 1999; 68:321-31. [PMID: 10079140 DOI: 10.1006/exer.1998.0608] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.6] [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: 11/22/2022]
Abstract
SPARC (secreted protein acidic and rich in cysteine) is a matricellular protein that regulates cellular adhesion and proliferation. In this report, we show that SPARC protein is restricted to epithelial cells of the murine lens and ends abruptly at the equatorial bow region where lens fiber differentiation begins. SPARC protein was not detected in the lens capsule or in differentiated lens fibers. SPARC-null mice developed cataracts at approximately 3-4 months after birth, at which time posterior subcapsular opacities were observed by slit lamp ophthalmoscopy. Histological analyses of ocular sections from 3-month old animals revealed several microscopic abnormalities present in the SPARC-null mice but absent from the wild-type animals. Fiber cell elongation was incomplete posteriorly and resulted in displacement of the lenticular nucleus to the posterior of the lens. Nuclear debris was present in the posterior subcapsular region of the lens, an indication of the abnormal migration and elongation of either fetal or anterior epithelial cells, and the bow region was disrupted and vacuolated. In the anterior lens, the capsule appeared to be thickened and was lined by atypical, plump cuboidal epithelium. Moreover, anterior cortical fibers were swollen. Polyacrylamide gel electrophoresis of the epithelial, cortical and nuclear fractions of wild-type and SPARC-null lenses indicated no significant differences among the alpha-, beta-, and gamma-crystallins. Expression of alphaB-crystallin appeared similar in fiber cells of wild-type and SPARC-null lenses, although the distribution of alphaB-crystallin was asymmetric in SPARC-null lenses as a result of abnormal lens fiber differentiation. No evidence of atypical extracellular matrix deposition in areas other than the capsule was detected in wild-type or SPARC-null lens at 3 months of age. We conclude that the disruption of the Sparc locus in mice results in the alteration of two fundamental processes of lens development: differentiation of epithelial cells and maturation of fiber cells.
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Affiliation(s)
- J A Bassuk
- Department of Biological Structure, University of Washington School of Medicine, Seattle, WA, USA
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Bradshaw A. Defining 'competency' in nursing (Part II): An analytical review. J Clin Nurs 1998; 7:103-11. [PMID: 9582760] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The reason for the present uncertainty in defining nursing competency is analysed. The prevailing educational philosophy underpinning nursing preparation for competence is subjected to a critique. The effect and outcome of this philosophy on clinical supervision, PREP and the law are considered in relation to nursing competence. It is concluded that because nursing competency is only vaguely and broadly defined, preparation and assessment of competency is haphazard and unstructured; and hence a potential safety hazard for both patient and nurse. It is suggested that the UKCC needs to assume responsibility for ascertaining nursing competence; and a four-point framework is proposed for setting and testing national standards of nursing competency.
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Affiliation(s)
- A Bradshaw
- RCN Institute, Radcliffe Infirmary, Oxford, UK
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Affiliation(s)
- A Bradshaw
- Royal College of Nursing Institute, Oxford Centre, Radcliffe Infirmary, UK
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Bradshaw A. Defining 'competency' in nursing (Part I): A policy review. J Clin Nurs 1997; 6:347-54. [PMID: 9355468] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
How the nursing profession in England defines the basic competency of the registered general nurse is crucial for the safety of the patient and the protection of the nurse. It is also essential for determining advanced practice, extended practice and specialist practice in nursing. An historical overview of documentation from the United Kingdom Central Council for Midwifery and Health Visiting, the English National Board for Nursing, Midwifery and Health Visiting and the Royal College of Nursing shows a profound change in educational policy during the 1980s regarding the interpretation of nursing competency. The effects of this policy change on the current methods developed to define, teach and test nursing competency are examined. Preliminary conclusions show shortcomings and uncertainty in the present preparation and evaluation of nursing competency.
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Affiliation(s)
- A Bradshaw
- RCN Institute, Radcliffe Infirmary, Oxford, UK
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Abstract
There is increasing concern that the original hospice ethos is becoming subject to routinization and bureaucratization. Authors, drawing on Weber's concept of rationalization, have suggested that this has resulted from the loss of the original charismatic impetus and the commitment to care for the terminally ill and dying as inspired by the spiritual 'calling'. This paper argues that this original ethical ideal has been fundamental to the humane care of the dying and terminally ill. Using Alasdair MacIntyre's analysis it is suggested that as the ideal attenuates there are inevitable shifts in the ethos and culture of care. An emotivist culture in which the aesthete, the therapist and the manager are dominant characters, may seem to be occurring in palliative care. The focus on management skills and the values of efficiency and effectiveness influence attitudes to death. This brings increased medicalization, a reliance on psychosocial techniques, a predominant focus on education, research and audit and most particularly redefined attitudes to the spiritual component of care. The paper asks the question whether the original ethic has a place in preventing palliative care becoming merely a technique for professional empowerment.
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Affiliation(s)
- A Bradshaw
- National Institute for Nursing, Radcliffe Infirmary, Oxford, England
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Bradshaw A. The legacy of Nightingale. Nurs Times 1996; 92:42-3. [PMID: 8684984] [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: 02/01/2023]
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Abstract
This paper is a response to Peter Allmark's thesis that 'there can be no "caring" ethics'. It argues that the current preoccupation in nursing to define an ethics of care is a direct result of breaking nursing tradition. Subsequent attempts to find a moral basis for care, whether from subjective experimental perspectives such as described by Noddings, or from rational and detached approaches derived from Kant, are inevitably flawed. Writers may still implicitly presuppose a concept of care drawn from the Judaeo-Christian tradition but without explicit recourse to its moral basis nursing is left rudderless and potentially without purpose. The very concept of 'care' cut off from its roots becomes a meaningless term without either normative or descriptive content.
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Affiliation(s)
- A Bradshaw
- National Institute for Nursing, Radcliffe Infirmary, Oxford
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Cousins C, Dutka DP, Bradshaw A, Dawson P. Effect of arterial cannulation and contrast agents on blood coagulation. Acad Radiol 1995; 2:663-6. [PMID: 9419621] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
RATIONALE AND OBJECTIVES Nonionic contrast media have been considered by some to have thrombogenic properties. We prospectively assessed the effect of femoral artery catheterization and both nonionic and ionic contrast media on the coagulation parameters--fragment 1 + 2 (F1 + 2) and fibrinopeptide A (FpA)--during clinical angiography. METHODS Seventeen patients undergoing aortography were included. Blood samples were obtained before and after arterial puncture and before and up to 30 min after contrast administration. RESULTS An increase in FpA was observed after arterial puncture (range = 8.4 +/- 1.9 to 13.6 +/- 2.3 ng/ml, p < .004; data are written as mean +/- standard error of the mean). There was an observed increase in F1 + 2 after arterial puncture that was not statistically significant (2.0 +/- 0.4 to 2.3 +/- 0.4 nmol/l). No further increase was observed in either FpA or F1 + 2 levels after nonionic or ionic contrast media administration. CONCLUSION The increased activity of the coagulation system during angiography is related to the arterial puncture, and nonionic and ionic contrast media have no thrombogenic potential in vivo.
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Affiliation(s)
- C Cousins
- Department of Radiology, Royal Postgraduate Medical School, Hammersmith Hospital, London, England
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Affiliation(s)
- A Bradshaw
- National Institute for Nursing, Radcliffe Infirmary, Oxford
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Xu Z, Liu Y, Johnson PD, Itchkawitz B, Randall K, Feldhaus J, Bradshaw A. Spin-polarized photoemission study of the Fe 3s multiplet. Phys Rev B Condens Matter 1995; 51:7912-7915. [PMID: 9977384 DOI: 10.1103/physrevb.51.7912] [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: 04/12/2023]
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