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Estrin-Serlui T, Bailey D, Osborn M. An occupational health survey of the UK's mortuary workforce. Occup Med (Lond) 2023; 73:208-210. [PMID: 37061840 DOI: 10.1093/occmed/kqad048] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2023] Open
Abstract
BACKGROUND Mortuaries are predominantly staffed by anatomical pathology technologists (APTs) and pathologists, and the work they undertake carries implicit health risk due to its nature. Until now there has not been a nationwide assessment of the occupational health of these essential workers in the UK. AIMS To assess the current occupational health status and needs of the mortuary workforce in the UK. METHODS We created a bespoke, brief online survey which was approved by the professional bodies representing APTs and pathologists in the UK. The survey was disseminated electronically using these organizations' targeted mailing lists. RESULTS Two hundred and thirty participants completed the survey, comprising 108 (47%) APTs and 122 (53%) pathologists. Most (89%) respondents reported that they have suffered from occupational health issues, the largest subcategory being musculoskeletal problems (77%). Almost half (48%) of APTs and around one-quarter (26%) of pathologists who responded have taken time off work in the last year because of occupational health problems, with almost one-fifth (19%) of the APTs having taken at least 4 weeks off. CONCLUSIONS A significant number of workhours are lost per year to sick leave resulting from occupational health problems. Respondents' comments highlight issues in workspaces, rest facilities and staffing, and variability in working conditions across the country. We suggest that future workforce planning should prioritize good occupational health, with nationwide improvements in mortuary design.
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Affiliation(s)
- T Estrin-Serlui
- West Hertfordshire Hospitals NHS Trust, Hemel Hempstead Hospital, Hemel Hempstead, UK
| | - D Bailey
- North West Anglia NHS Foundation Trust, Peterborough City Hospital, Edith Cavell Campus, Bretton Gate, Peterborough PE3 9GZ, UK
| | - M Osborn
- Imperial College Healthcare NHS Trust, Charing Cross Hospital, Fulham Road, London W6 8RF, UK
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Kelly FE, Bailey CR, Aldridge P, Brennan PA, Hardy RP, Henrys P, Hussain A, Jenkins M, Lang A, McGuire N, McNarry A, Osborn M, Pittilla L, Ralph M, Sarkar S, Taft D. Fire safety and emergency evacuation guidelines for intensive care units and operating theatres: for use in the event of fire, flood, power cut, oxygen supply failure, noxious gas, structural collapse or other critical incidents: Guidelines from the Association of Anaesthetists and the Intensive Care Society. Anaesthesia 2021; 76:1377-1391. [PMID: 33984872 DOI: 10.1111/anae.15511] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2021] [Indexed: 12/21/2022]
Abstract
The need to evacuate an ICU or operating theatre complex during a fire or other emergency is a rare event but one potentially fraught with difficulty: Not only is there a risk that patients may come to harm but also that staff may be injured and unable to work. Designing newly-built or refurbished ICUs and operating theatre suites is an opportunity to incorporate mandatory fire safety features and improve the management and outcomes of such emergencies: These include well-marked manual fire call points and oxygen shut off valves (area valve service units); the ability to isolate individual zones; multiple clear exit routes; small bays or side rooms; preference for ground floor ICU location and interconnecting routes with operating theatres; separate clinical and non-clinical areas. ICUs and operating theatre suites should have a bespoke emergency evacuation plan and route map that is readily available. Staff should receive practical fire and evacuation training in their clinical area of work on induction and annually as part of mandatory training, including 'walk-through practice' or simulation training and location of manual fire call points and fire extinguishers, evacuation routes and location and operation of area valve service units. The staff member in charge of each shift should be able to select and operate fire extinguishers and lead an evacuation. Following an emergency evacuation, a network-wide response should be activated, including retrieval and transport of patients to other ICUs if needed. A full investigation should take place and ongoing support and follow-up of staff provided.
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Affiliation(s)
- F E Kelly
- Department of Anaesthesia and Intensive Care Medicine, Royal United Hospitals Bath NHS Foundation Trust, Bath, UK
| | - C R Bailey
- Department of Anaesthesia, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - P Aldridge
- Fire, Security and Corporate Affairs, Leeds Teaching Hospitals NHS Trust and General Secretary, National Association of Healthcare Fire Officers, UK
| | - P A Brennan
- Portsmouth Hospitals University Trust, Portsmouth, UK
| | - R P Hardy
- Department of Anaesthesia and Intensive Care Medicine, Royal United Hospitals Bath NHS Foundation Trust, Bath, UK
| | - P Henrys
- BOC Ltd, British Compressed Gas Association Medical Gas Committee
| | - A Hussain
- AH Fire Ltd, Member of the National Association of Healthcare Fire Officers, UK
| | - M Jenkins
- Intensive Care Unit, Royal United Hospitals NHS Foundation Trust, Bath, UK
| | - A Lang
- Human Factors Research Group, Faculty of Engineering, University of Nottingham, Nottingham, UK
| | - N McGuire
- Devices, Medicines and Healthcare products Regulatory Agency
| | - A McNarry
- Department of Anaesthesia, Western General Hospital, Edinburgh, UK
| | - M Osborn
- Department of Oncology, Royal United Hospitals Bath NHS Foundation Trust, Bath, UK
| | - L Pittilla
- North of England Paediatric Critical Care Network and Paediatric Critical Care Society
| | - M Ralph
- NHS Improvement (Department of Health) and Chair, Medical Gas Association
| | - S Sarkar
- Department of Anaesthesia and Intensive Care Medicine, Sherwood Forest Hospitals NHS Foundation Trust, Nottinghamshire, UK
| | - D Taft
- Health and Safety Executive
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3
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Mondrinos MJ, Alisafaei F, Yi AY, Ahmadzadeh H, Lee I, Blundell C, Seo J, Osborn M, Jeon TJ, Kim SM, Shenoy VB, Huh D. Surface-directed engineering of tissue anisotropy in microphysiological models of musculoskeletal tissue. Sci Adv 2021; 7:7/11/eabe9446. [PMID: 33712463 PMCID: PMC7954445 DOI: 10.1126/sciadv.abe9446] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 01/27/2021] [Indexed: 05/11/2023]
Abstract
Here, we present an approach to model and adapt the mechanical regulation of morphogenesis that uses contractile cells as sculptors of engineered tissue anisotropy in vitro. Our method uses heterobifunctional cross-linkers to create mechanical boundary constraints that guide surface-directed sculpting of cell-laden extracellular matrix hydrogel constructs. Using this approach, we engineered linearly aligned tissues with structural and mechanical anisotropy. A multiscale in silico model of the sculpting process was developed to reveal that cell contractility increases as a function of principal stress polarization in anisotropic tissues. We also show that the anisotropic biophysical microenvironment of linearly aligned tissues potentiates soluble factor-mediated tenogenic and myogenic differentiation of mesenchymal stem cells. The application of our method is demonstrated by (i) skeletal muscle arrays to screen therapeutic modulators of acute oxidative injury and (ii) a 3D microphysiological model of lung cancer cachexia to study inflammatory and oxidative muscle injury induced by tumor-derived signals.
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Affiliation(s)
- Mark J Mondrinos
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Farid Alisafaei
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alex Y Yi
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Hossein Ahmadzadeh
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Insu Lee
- Department of Mechanical Engineering, Inha University, Incheon, Korea
| | - Cassidy Blundell
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jeongyun Seo
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Matthew Osborn
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Tae-Joon Jeon
- Department of Biological Engineering, Inha University, Incheon, Korea
| | - Sun Min Kim
- Department of Mechanical Engineering, Inha University, Incheon, Korea
| | - Vivek B Shenoy
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA
- NSF Science and Technology Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Dongeun Huh
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
- NSF Science and Technology Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA 19104, USA
- Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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4
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Al-Sarraj S, Troakes C, Hanley B, Osborn M, Richardson MP, Hotopf M, Bullmore E, Everall IP. Invited Review: The spectrum of neuropathology in COVID-19. Neuropathol Appl Neurobiol 2020; 47:3-16. [PMID: 32935873 DOI: 10.1111/nan.12667] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/02/2020] [Accepted: 09/03/2020] [Indexed: 12/21/2022]
Abstract
There is increasing evidence that patients with Coronavirus disease 19 (COVID-19) present with neurological and psychiatric symptoms. Anosmia, hypogeusia, headache, nausea and altered consciousness are commonly described, although there are emerging clinical reports of more serious and specific conditions such as acute cerebrovascular accident, encephalitis and demyelinating disease. Whether these presentations are directly due to viral invasion of the central nervous system (CNS) or caused by indirect mechanisms has yet to be established. Neuropathological examination of brain tissue at autopsy will be essential to establish the neuro-invasive potential of the SARS-CoV-2 virus but, to date, there have been few detailed studies. The pathological changes in the brain probably represent a combination of direct cytopathic effects mediated by SARS-CoV-2 replication or indirect effects due to respiratory failure, injurious cytokine reaction, reduced immune response and cerebrovascular accidents induced by viral infection. Further large-scale molecular and cellular investigations are warranted to clarify the neuropathological correlates of the neurological and psychiatric features seen clinically in COVID-19. In this review, we summarize the current reports of neuropathological examination in COVID-19 patients, in addition to our own experience, and discuss their contribution to the understanding of CNS involvement in this disease.
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Affiliation(s)
- S Al-Sarraj
- Department of Clinical Neuropathology, King's College Hospital NHS Foundation Trust, London, UK.,London Neurodegenerative Diseases Brain Bank, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - C Troakes
- London Neurodegenerative Diseases Brain Bank, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - B Hanley
- Department of Cellular Pathology, Imperial College Healthcare NHS Trust, London, UK
| | - M Osborn
- Department of Cellular Pathology, Imperial College Healthcare NHS Trust, London, UK
| | - M P Richardson
- The Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - M Hotopf
- The Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.,National Institute of Health Research Biomedical Research Centre at South London and Maudsley NHS Foundation Trust, London, UK
| | - E Bullmore
- Department of Psychiatry, University of Cambridge, Cambridge, UK
| | - I P Everall
- The Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
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5
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Jiang C, Lian X, Gao C, Sun X, Einkauf KB, Chevalier JM, Chen SMY, Hua S, Rhee B, Chang K, Blackmer JE, Osborn M, Peluso MJ, Hoh R, Somsouk M, Milush J, Bertagnolli LN, Sweet SE, Varriale JA, Burbelo PD, Chun TW, Laird GM, Serrao E, Engelman AN, Carrington M, Siliciano RF, Siliciano JM, Deeks SG, Walker BD, Lichterfeld M, Yu XG. Distinct viral reservoirs in individuals with spontaneous control of HIV-1. Nature 2020; 585:261-267. [PMID: 32848246 PMCID: PMC7837306 DOI: 10.1038/s41586-020-2651-8] [Citation(s) in RCA: 211] [Impact Index Per Article: 52.8] [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: 10/02/2019] [Accepted: 07/15/2020] [Indexed: 02/01/2023]
Abstract
Sustained, drug-free control of HIV-1 replication is naturally achieved in less than 0.5% of infected individuals (here termed 'elite controllers'), despite the presence of a replication-competent viral reservoir1. Inducing such an ability to spontaneously maintain undetectable plasma viraemia is a major objective of HIV-1 cure research, but the characteristics of proviral reservoirs in elite controllers remain to be determined. Here, using next-generation sequencing of near-full-length single HIV-1 genomes and corresponding chromosomal integration sites, we show that the proviral reservoirs of elite controllers frequently consist of oligoclonal to near-monoclonal clusters of intact proviral sequences. In contrast to individuals treated with long-term antiretroviral therapy, intact proviral sequences from elite controllers were integrated at highly distinct sites in the human genome and were preferentially located in centromeric satellite DNA or in Krüppel-associated box domain-containing zinc finger genes on chromosome 19, both of which are associated with heterochromatin features. Moreover, the integration sites of intact proviral sequences from elite controllers showed an increased distance to transcriptional start sites and accessible chromatin of the host genome and were enriched in repressive chromatin marks. These data suggest that a distinct configuration of the proviral reservoir represents a structural correlate of natural viral control, and that the quality, rather than the quantity, of viral reservoirs can be an important distinguishing feature for a functional cure of HIV-1 infection. Moreover, in one elite controller, we were unable to detect intact proviral sequences despite analysing more than 1.5 billion peripheral blood mononuclear cells, which raises the possibility that a sterilizing cure of HIV-1 infection, which has previously been observed only following allogeneic haematopoietic stem cell transplantation2,3, may be feasible in rare instances.
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Affiliation(s)
- Chenyang Jiang
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Infectious Disease Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Xiaodong Lian
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Infectious Disease Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Ce Gao
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Xiaoming Sun
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Kevin B Einkauf
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Infectious Disease Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Joshua M Chevalier
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Infectious Disease Division, Brigham and Women's Hospital, Boston, MA, USA
| | | | - Stephane Hua
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Ben Rhee
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Infectious Disease Division, Brigham and Women's Hospital, Boston, MA, USA
| | - Kaylee Chang
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | | | - Matthew Osborn
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Michael J Peluso
- Department of Medicine, University of California at San Francisco, San Francisco, CA, USA
| | - Rebecca Hoh
- Department of Medicine, University of California at San Francisco, San Francisco, CA, USA
| | - Ma Somsouk
- Department of Medicine, University of California at San Francisco, San Francisco, CA, USA
| | - Jeffrey Milush
- Department of Medicine, University of California at San Francisco, San Francisco, CA, USA
| | - Lynn N Bertagnolli
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sarah E Sweet
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Joseph A Varriale
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Peter D Burbelo
- Dental Clinical Research Core, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - Tae-Wook Chun
- National Institute of Allergies and Infectious Diseases, Bethesda, MD, USA
| | | | - Erik Serrao
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Alan N Engelman
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA, USA
- Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Mary Carrington
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Basic Science Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Robert F Siliciano
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Janet M Siliciano
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
| | - Steven G Deeks
- Department of Medicine, University of California at San Francisco, San Francisco, CA, USA
| | - Bruce D Walker
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
- Institute for Medical Engineering and Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Mathias Lichterfeld
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
- Infectious Disease Division, Brigham and Women's Hospital, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Xu G Yu
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA.
- Infectious Disease Division, Brigham and Women's Hospital, Boston, MA, USA.
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6
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Kaneko N, Kuo HH, Boucau J, Farmer JR, Allard-Chamard H, Mahajan VS, Piechocka-Trocha A, Lefteri K, Osborn M, Bals J, Bartsch YC, Bonheur N, Caradonna TM, Chevalier J, Chowdhury F, Diefenbach TJ, Einkauf K, Fallon J, Feldman J, Finn KK, Garcia-Broncano P, Hartana CA, Hauser BM, Jiang C, Kaplonek P, Karpell M, Koscher EC, Lian X, Liu H, Liu J, Ly NL, Michell AR, Rassadkina Y, Seiger K, Sessa L, Shin S, Singh N, Sun W, Sun X, Ticheli HJ, Waring MT, Zhu AL, Alter G, Li JZ, Lingwood D, Schmidt AG, Lichterfeld M, Walker BD, Yu XG, Padera RF, Pillai S. Loss of Bcl-6-Expressing T Follicular Helper Cells and Germinal Centers in COVID-19. Cell 2020; 183:143-157.e13. [PMID: 32877699 PMCID: PMC7437499 DOI: 10.1016/j.cell.2020.08.025] [Citation(s) in RCA: 498] [Impact Index Per Article: 124.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 07/24/2020] [Accepted: 08/14/2020] [Indexed: 01/08/2023]
Abstract
Humoral responses in coronavirus disease 2019 (COVID-19) are often of limited durability, as seen with other human coronavirus epidemics. To address the underlying etiology, we examined post mortem thoracic lymph nodes and spleens in acute SARS-CoV-2 infection and observed the absence of germinal centers and a striking reduction in Bcl-6+ germinal center B cells but preservation of AID+ B cells. Absence of germinal centers correlated with an early specific block in Bcl-6+ TFH cell differentiation together with an increase in T-bet+ TH1 cells and aberrant extra-follicular TNF-α accumulation. Parallel peripheral blood studies revealed loss of transitional and follicular B cells in severe disease and accumulation of SARS-CoV-2-specific "disease-related" B cell populations. These data identify defective Bcl-6+ TFH cell generation and dysregulated humoral immune induction early in COVID-19 disease, providing a mechanistic explanation for the limited durability of antibody responses in coronavirus infections, and suggest that achieving herd immunity through natural infection may be difficult.
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Affiliation(s)
- Naoki Kaneko
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Hsiao-Hsuan Kuo
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Julie Boucau
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Jocelyn R Farmer
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Hugues Allard-Chamard
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Division of Rheumatology, Faculté de Médecine et des Sciences de la Santé de l'Université de Sherbrooke et Centre de Recherche Clinique Étienne-Le Bel, Sherbrooke, QC J1K 2R1, Canada
| | - Vinay S Mahajan
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Alicja Piechocka-Trocha
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Kristina Lefteri
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Matthew Osborn
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Julia Bals
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Yannic C Bartsch
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Nathalie Bonheur
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | | | - Josh Chevalier
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Fatema Chowdhury
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | | | - Kevin Einkauf
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Jon Fallon
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Jared Feldman
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Kelsey K Finn
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | | | | | - Blake M Hauser
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Chenyang Jiang
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Paulina Kaplonek
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Marshall Karpell
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Eric C Koscher
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Xiaodong Lian
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Hang Liu
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Jinqing Liu
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Ngoc L Ly
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Ashlin R Michell
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | | | - Kyra Seiger
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Libera Sessa
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Sally Shin
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Nishant Singh
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Weiwei Sun
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Xiaoming Sun
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Hannah J Ticheli
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Michael T Waring
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Alex L Zhu
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Galit Alter
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Jonathan Z Li
- Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Daniel Lingwood
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA
| | - Aaron G Schmidt
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Department of Microbiology, Harvard Medical School, Boston, MA 02115, USA
| | - Mathias Lichterfeld
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Bruce D Walker
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA; Department of Biology and Institute of Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Xu G Yu
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Robert F Padera
- Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115, USA.
| | - Shiv Pillai
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA 02139, USA.
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7
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Kelly FE, Osborn M, Stacey MS. Improving resilience in anaesthesia and intensive care medicine - learning lessons from the military. Anaesthesia 2019; 75:720-723. [PMID: 31701520 DOI: 10.1111/anae.14911] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/11/2019] [Indexed: 11/29/2022]
Affiliation(s)
- F E Kelly
- Department of Anaesthesia and Intensive Care Medicine, Royal United Hospitals Bath NHS Foundation Trust, Bath, UK
| | - M Osborn
- Department of Oncology, Royal United Hospitals Bath NHS Foundation Trust, Bath, UK
| | - M S Stacey
- Department of Anaesthesia, Cardiff and Vale NHS Trust, Cardiff, UK
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8
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Osborn M, Newby G, Knipping F, Liu D, Tolar J. 374 CRISPR/Cas9-base editing mediated correction for recessive dystrophic epidermolysis bullosa. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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White VM, Skaczkowski G, Pinkerton R, Coory M, Osborn M, Bibby H, Nicholls W, Orme LM, Conyers R, Phillips MB, Harrup R, Walker R, Thompson K, Anazodo A. Clinical management of Australian adolescents and young adults with acute lymphoblastic and myeloid leukemias: A national population-based study. Pediatr Blood Cancer 2018; 65:e27349. [PMID: 30039912 DOI: 10.1002/pbc.27349] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/23/2018] [Accepted: 06/10/2018] [Indexed: 12/26/2022]
Abstract
BACKGROUND While several studies have examined the treatment of adolescents and young adults (AYAs) with acute lymphoblastic leukemia (ALL), studies of acute myeloid leukemia (AML) are rare. Using national data for Australia, we describe (i) the number and type of treatment centers caring for AYAs, (ii) induction/first-line treatments, and (iii) survival outcomes. PROCEDURE National population-based study assessing treatment of 15- to 24-year-olds diagnosed with ALL or AML between 2007 and 2012. Treatment details were abstracted from hospital medical records. Treatment centers were classified as pediatric or adult (adult AYA-focused or other adult; and by AYA volume [high/low]). Cox proportional hazard regression analyses examined associations between treatment and overall, event-free, and relapse-free survival outcomes. RESULTS Forty-seven hospitals delivered induction therapy to 351 patients (181 ALL and 170 AML), with 74 (21%) treated at pediatric centers; 70% of hospitals treated less than two AYA leukemia patients per year. Regardless of treatment center, 82% of ALL patients were on pediatric protocols. For AML, pediatric protocols were not used in adult centers, with adult centers using a non-COG 7+3-type induction protocol (51%, where COG is Cooperative Oncology Group) or an ICE-type protocol (39%, where ICE is idarubicin, cytarabine, etoposide). Exploratory analyses suggested that for both ALL and AML, AYAs selected for adult protocols have worse overall, event-free, and relapse-free survival outcomes. CONCLUSIONS Pediatric protocols were commonly used for ALL patients regardless of where they are treated, indicating rapid assimilation of recent evidence by Australian hematologists. For AML, pediatric protocols were only used at pediatric centers. Further investigation is warranted to determine the optimal treatment approach for AYA AML patients.
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Affiliation(s)
- V M White
- Centre for Behavioural Research in Cancer, Cancer Council Victoria, Melbourne, Victoria, Australia.,School of Psychology, Deakin University, Burwood, Victoria, Australia
| | - G Skaczkowski
- Centre for Behavioural Research in Cancer, Cancer Council Victoria, Melbourne, Victoria, Australia.,School of Psychology and Public Health, La Trobe University, Bundoora, Victoria, Australia.,Olivia Newton-John Cancer Wellness & Research Centre, Austin Health, Heidelberg, Victoria, Australia
| | - R Pinkerton
- Children's Health Queensland Hospital and Health Service, Brisbane, Queensland, Australia
| | - M Coory
- Children's Cancer Centre, The Royal Children's Hospital, Melbourne, Victoria, Australia
| | - M Osborn
- Royal Adelaide Hospital, South Australia, Adelaide, Australia
| | - H Bibby
- Centre for Behavioural Research in Cancer, Cancer Council Victoria, Melbourne, Victoria, Australia
| | - W Nicholls
- Children's Health Queensland Hospital and Health Service, Brisbane, Queensland, Australia
| | - L M Orme
- Children's Cancer Centre, The Royal Children's Hospital, Melbourne, Victoria, Australia.,Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - R Conyers
- Children's Cancer Centre, The Royal Children's Hospital, Melbourne, Victoria, Australia.,Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - M B Phillips
- Princess Margaret Hospital for Children, Perth, Western Australia, Australia
| | - R Harrup
- Royal Hobart Hospital, Hobart, Tasmania, Australia
| | - R Walker
- Children's Health Queensland Hospital and Health Service, Brisbane, Queensland, Australia
| | - K Thompson
- Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - A Anazodo
- Kids Cancer Centre, Sydney Children's Hospital, Randwick, New South Wales, Australia.,Nelune Comprehensive Cancer Centre, Prince of Wales Hospital, Randwick, New South Wales, Australia.,School of Women's and Children's Health, University of New South Wales, Randwick, New South Wales, Australia
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Andrusaitis J, Billimek J, Osborn M, Rudkin S, Toohey S. 228 Comparison of Primary Compliance in Electronic Versus Paper Prescriptions Prescribed From the Emergency Department. Ann Emerg Med 2017. [DOI: 10.1016/j.annemergmed.2017.07.450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wilson S, Chaloner N, Osborn M, Gauntlett-Gilbert J. Psychologically informed physiotherapy for chronic pain: patient experiences of treatment and therapeutic process. Physiotherapy 2017; 103:98-105. [DOI: 10.1016/j.physio.2015.11.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 11/22/2015] [Indexed: 10/22/2022]
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Ong S, Rodriguez-Garcia C, Grabczynska S, Carton J, Osborn M, Walters J, Kubba F, Stefanato CM. Alopecia areata incognita in Cronkhite-Canada syndrome. Br J Dermatol 2016; 177:531-534. [PMID: 28029683 DOI: 10.1111/bjd.15293] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2016] [Indexed: 11/30/2022]
Abstract
Cronkhite-Canada syndrome is an acquired inflammatory polyposis syndrome in which alopecia, onychomadesis and hyperpigmentation occur concurrently with gastrointestinal symptoms. The pathophysiology of alopecia in Cronkhite-Canada syndrome has not been definitively elucidated. We present evidence for alopecia areata incognita as a possible mechanism of hair loss.
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Affiliation(s)
- S Ong
- Department of Dermatology, Amersham Hospital, Buckinghamshire Healthcare NHS Trust, Whielden Street, Amersham, HP7 0JD, U.K
| | - C Rodriguez-Garcia
- Department of Dermatology, Amersham Hospital, Buckinghamshire Healthcare NHS Trust, Whielden Street, Amersham, HP7 0JD, U.K
| | - S Grabczynska
- Department of Dermatology, Amersham Hospital, Buckinghamshire Healthcare NHS Trust, Whielden Street, Amersham, HP7 0JD, U.K
| | - J Carton
- Department of Histopathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, U.K
| | - M Osborn
- Department of Histopathology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, U.K
| | - J Walters
- Department of Gastroenterology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, U.K
| | - F Kubba
- Department of Histopathology, London Northwest Healthcare NHS Trust, London, U.K
| | - C M Stefanato
- Department of Dermatopathology, St John's Institute of Dermatology, St Thomas' Hospital, London, U.K
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White VM, Bibby H, Green M, Anazodo A, Nicholls W, Pinkerton R, Phillips M, Harrup R, Osborn M, Orme LM, Conyers R, Thompson K, Coory M. Inconsistencies and time delays in site-specific research approvals hinder collaborative clinical research in Australia. Intern Med J 2016; 46:1023-9. [DOI: 10.1111/imj.13191] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 07/05/2016] [Accepted: 07/05/2016] [Indexed: 11/30/2022]
Affiliation(s)
- V. M. White
- Cancer Council Victoria; Melbourne Victoria Australia
| | - H. Bibby
- Cancer Council Victoria; Melbourne Victoria Australia
| | - M. Green
- Murdoch Childrens Research Institute; Melbourne Victoria Australia
| | - A. Anazodo
- Sydney Children's Hospital; Sydney New South Wales Australia
- Prince of Wales Hospital; Sydney New South Wales Australia
| | - W. Nicholls
- Children's Health Queensland; Brisbane Queensland Australia
| | - R. Pinkerton
- Children's Health Queensland; Brisbane Queensland Australia
| | - M. Phillips
- Princess Margaret Hospital for Children; Perth Western Australia Australia
| | - R. Harrup
- Royal Hobart Hospital; Hobart Tasmania Australia
| | - M. Osborn
- Royal Adelaide Hospital; Adelaide South Australia Australia
| | - L. M. Orme
- Peter MacCallum Cancer Centre; Melbourne Victoria Australia
| | - R. Conyers
- Royal Children's Hospital; Melbourne Victoria Australia
| | - K. Thompson
- Peter MacCallum Cancer Centre; Melbourne Victoria Australia
| | - M. Coory
- Murdoch Childrens Research Institute; Melbourne Victoria Australia
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Mason VL, Skevington SM, Osborn M. The quality of life of people in chronic pain: developing a pain and discomfort module for use with the WHOQOL. Psychol Health 2014; 23:135-54. [PMID: 25160047 DOI: 10.1080/14768320601070746] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
This article reports the development of a pain and discomfort module (PDM) designed to assess the full impact of quality of life (QoL) relating to chronic pain, which could be used with the generic World Health Organisation Quality of Life Assessment (WHOQOL). First, cognitive interviewing was completed with nine participants with chronic pain, for 108 items representing 10 pain-specific facets of QoL. Sixty-eight QoL items and 16 importance questions on pain were relevant, comprehensive, comprehensible and acceptable to users, and were confirmed to assess their purported concepts. Secondly, these items were pilot tested using a cross-sectional survey of 216 people with chronic pain, to investigate the preliminary psychometric properties of the PDM, and reduce its items statistically. All new facets were important to those with chronic pain. Sixteen items within four facets of pain relief, anger and frustration, vulnerability/fear/worry, and uncertainty were retained, and demonstrated acceptable to good internal consistency reliability (α = 0.77-0.85). The PDM is a self-administered, multidimensional subjective assessment of pain-related QoL, with potential to evaluate pain-relieving interventions, identify sufferer's needs, and for survey use.
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Affiliation(s)
- V L Mason
- a WHO Field Centre for the Study of Quality of Life, Department of Psychology , University of Bath , Bath BA2 7AY , UK
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Hodge G, Scott J, Osborn M, To L, Zola H, Hodge S, Revesz T. Increased T regulatory cells and decreased Th1 pro-inflammatory cytokines correlate with culture-positive infection in febrile neutropenia childhood oncology patients. Cytokine 2011; 53:286-8. [DOI: 10.1016/j.cyto.2010.11.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Revised: 11/14/2010] [Accepted: 11/17/2010] [Indexed: 11/24/2022]
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Lampejo T, Kavanagh D, Clark J, Goldin R, Osborn M, Ziprin P, Cleator S. Prognostic biomarkers in squamous cell carcinoma of the anus: a systematic review. Br J Cancer 2010; 103:1858-69. [PMID: 21063399 PMCID: PMC3008609 DOI: 10.1038/sj.bjc.6605984] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND recent decades have seen combination chemoradiotherapy become the standard treatment for anal squamous cell carcinoma (SCC). However, the burden of this disease continues to rise, with only 10% of patients with metastatic disease surviving >2 years. Further insight into tumour characteristics and molecular biology may identify novel therapeutic targets. This systematic review examines current prognostic markers in SCC of the anus. METHODS an extensive literature search was performed to identify studies reporting on biomarkers in anal cancer in the context of clinical outcome following treatment primarily with chemoradiotherapy. RESULTS in all, 21 studies were included. A total of 29 biomarkers were studied belonging to 9 different functional classes. Of these biomarkers, 13 were found to have an association with outcome in at least one study. The tumour-suppressor genes p53 and p21 were the only markers shown to be of prognostic value in more than one study. CONCLUSIONS an array of biomarkers have been identified that correlate with survival following chemoradiotherapy in anal cancer. However, investigators are yet to identify a biomarker that has the ability to consistently predict outcome in this disease. Further studies are needed to elucidate whether these candidate biomarkers demonstrate their optimum value when they serve as targets for new therapeutic strategies.
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Affiliation(s)
- T Lampejo
- Department of Biosurgery and Surgical Technology, Imperial College London, St Mary's Hospital, Praed Street, London, W2 1NY, UK.
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Affiliation(s)
- K D J Jones
- Department of Paediatrics, Imperial College London, Wright-Fleming Institute, Norfolk Place, London W21PG, UK
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Abstract
BACKGROUND Nationally health systems are making increasing investments in the use of clinical information systems. Little is known about current computer use by specialist physicians, particularly outside the hospital setting. AIMS To identify the extent and reasons physician Fellows of the Royal Australasian College of Physicians (RACP) use computers in their work. METHODS A self-administered survey was emailed from the RACP to all practising physicians in 2007 that were living in Australia and New Zealand who had consented to email contact with the College. RESULTS The survey was sent to a total of 7445 eligible physicians, 2328 physicians responded (31.3% response rate), but only 1266 responses (21.0%) were able to be analysed. Most 97.5% had access to computers at work and 96.5% used home computers for work purposes. Physicians in public hospitals (72.6%) were more likely to use computers for work (65.6%) than those in private hospitals (12.6%) or consulting rooms (27.3%). Overall physicians working in public hospitals used a wider range of applications with 70.5% using their computers for searching the internet, 53.7% for receiving results and 52.7% used their computers to engage in specific educational activities. Physicians working from their consulting rooms (33.6%) were more likely to use electronic prescribing (11%) compared with physicians working in public hospitals (5.7%). CONCLUSIONS Fellows have not incorporated computers into their consulting rooms over which they have control. This is in contrast to general practitioners who have embraced computers after the provision of various incentives. The rate of use of computers by physicians for electronic prescribing in consulting rooms (11%) is very low in comparison with general practitioners (98%). One reason may be that physicians work in multiple locations whereas general practitioners are more likely to work from one location.
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Affiliation(s)
- M Osborn
- The Royal Australasian College of Physicians, Sydney, New South Wales, Australia.
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Wodak A, Cohen M, Dobbin MDH, Hallinan RA, Osborn M. Moving the debate forward on prescription opioids. Intern Med J 2010; 40:5-6. [DOI: 10.1111/j.1445-5994.2009.02130.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Mason VL, Skevington SM, Osborn M. A measure for quality of life assessment in chronic pain: preliminary properties of the WHOQOL-pain. J Behav Med 2008; 32:162-73. [DOI: 10.1007/s10865-008-9187-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Accepted: 11/07/2008] [Indexed: 10/21/2022]
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Vollrath M, Altmannsberger M, Debus E, Osborn M. Differentialdiagnose von Tumoren des Kopf-Hals-Bereichs mit Hilfe immunhistologischer und elektronenoptischer Untersuchungen. Laryngorhinootologie 2008. [DOI: 10.1055/s-2007-1008337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Vollrath M, Osborn M, Altmannsberger M. Immunhistologische Darstellung der Intermediärfilamente in einem Karzinosarkom des Larynx: Überlegungen zur Histogenese*. Laryngorhinootologie 2008. [DOI: 10.1055/s-2007-998661] [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: 10/21/2022]
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Hodge G, Osborn M, Hodge S, Nairn J, Tapp H, Kirby M, Sepulveda H, Morgan E, Revesz T, Zola H. Rapid simultaneous measurement of multiple cytokines in childhood oncology patients with febrile neutropenia: increased interleukin (IL)-8 or IL-5 correlates with culture-positive infection. Br J Haematol 2006; 132:247-8. [PMID: 16398661 DOI: 10.1111/j.1365-2141.2005.05870.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Osborn M, Mandys V, Beddow E, Ladas G, Florio R, Sheppard MN, Fisher C, Bell SW, Travis WD, Nicholson AG. Cystic fibrohistiocytic tumours presenting in the lung: primary or metastatic disease? Histopathology 2004; 43:556-62. [PMID: 14636256 DOI: 10.1111/j.1365-2559.2003.01717.x] [Citation(s) in RCA: 20] [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: 12/01/2022]
Abstract
AIMS Cystic fibrohistiocytic tumour of the lung is a rare proliferative process. Its histogenesis is uncertain, but evidence suggests that some cases represent metastatic disease from apparently indolent skin lesions, namely cellular fibrous histiocytomas. This study presents four cases and reviews the literature concerning this pattern of disease and its aetiology. METHODS AND RESULTS All patients were male (age range 35-54 years). Two presented with recurrent haemoptysis. Two cases had histories of cutaneous fibrohistiocytic lesions in the chest wall, excised 10 and 23 years prior to presentation with lung disease. Imaging data showed multiple bilateral cystic lung lesions in all four patients with nodular cavitating opacities seen on high-resolution computed tomography scans. Microscopy showed variably dilated thin-walled cystic airspaces lined by cuboidal epithelium and an underlying layer of mildly pleomorphic spindle cells with slightly wavy morphology and storiform architecture, admixed with inflammatory cells. Tumour cells stained for CD68 in three of four cases. All cases were negative for CD34. All patients were alive with disease, although one required pneumonectomy for intractable haemoptysis. CONCLUSION This study and a review of published cases show that the majority of cystic fibrohistiocytic tumours of the lung probably represent metastases from cellular fibrous histiocytomas. However, rare cases may be either primary in origin or the primary site remains occult; the term cystic fibrohistiocytic tumour remains appropriate for such cases.
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Affiliation(s)
- M Osborn
- Department of Histopathology, Royal Brompton Hospital, London, UK
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Gath D, Osborn M, Bungay G. Psychiatric disorder and gynaecological symptoms in middle aged women: A community survey. Int J Gynaecol Obstet 2004. [DOI: 10.1016/0020-7292(87)90090-7] [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]
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Abstract
BACKGROUND This paper assesses the oral health status in a prison population and identifies risk factors associated with oral health. METHODS Cross-sectional stratified random sample of 789 prisoners (657 males and 132 females) from 27 correctional centres across New South Wales, stratified by sex, age and aboriginality. A face to face interview was used to collect information on health status and behavioural risk factors. A subset of participants (312 males and 22 females) received an oral examination which enabled the decayed, missing or filled permanent teeth (DMFT) score to be calculated. RESULTS In the last 12 months 391 (50 per cent) inmates had visited a dentist. Reports on treatment received at this last visit were mainly for dental examinations, (62 per cent), dental fillings, (38 per cent), and dental extractions (28 per cent). Self-reported dental needs indicated that 42 per cent perceived the need for a check-up; the perceived need for dental fillings was highest in females compared with males. The mean DMFT for the population was 20.4 and 3.4 for decayed teeth. CONCLUSIONS This survey demonstrates that the standard of past oral health care for prison inmates is low. There is a need to be more attentive to oral health promotion as eventually respondents will be returning to the community.
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Affiliation(s)
- M Osborn
- Public Health Officer Training Programme, NSW Health, Australia.
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Lemmers RJLF, Osborn M, Haaf T, Rogers M, Frants RR, Padberg GW, Cooper DN, van der Maarel SM, Upadhyaya M. D4F104S1 deletion in facioscapulohumeral muscular dystrophy: phenotype, size, and detection. Neurology 2003; 61:178-83. [PMID: 12874395 DOI: 10.1212/01.wnl.0000078889.51444.81] [Citation(s) in RCA: 59] [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: 11/15/2022] Open
Abstract
BACKGROUND The facioscapulohumeral muscular dystrophy (FSHD) locus maps to 4q35 where it is closely linked to D4F104S1 (p13E-11), a probe that recognizes the pathognomonic FSHD deletion involving the subtelomeric D4Z4 tandem repeat array. Extended deletions that include both the more proximal D4F104S1 region and the D4Z4 repeat array proper do, however, occur, albeit rarely, and such deletions can lead to difficulties of interpretation in the diagnostic setting. OBJECTIVE To devise a means to determine the true frequency of proximally extended deletions in individuals with FSHD. METHODS Three families selected for this study were originally identified during routine FSHD analysis on the basis that the affected individuals in each family had failed to exhibit a small (<38-kb) EcoRI fragment. High molecular weight DNA from these families was analyzed with both conventional and pulsed-field gel electrophoresis using DNA markers p13E-11, 9B6A, B31, 4qA, and 4qB. RESULTS Large genomic deletions were identified involving both D4Z4 and D4F104S1. The precise number of D4Z4 repeat units borne by the p13E11 deletion allele was established by the use of an additional restriction enzyme (MseI) digest. All three cases carry different sizes of deletion proximal to the D4Z4 repeat units. With use of a recently described telomeric probe, 4qA, a method was developed that identifies large genomic deletions involving both D4Z4 and D4F104S1 using conventional gel electrophoresis. CONCLUSION Proximally extended deletions can be found in patients with a normal spectrum of the disease. This assay promises to allow estimation of the true frequency of proximally extended deletions and should improve the accuracy and reliability of molecular diagnostic testing for FSHD.
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Affiliation(s)
- R J L F Lemmers
- Department of Human Genetics, Center for Human and Clinical Genetics, Leiden, The Netherlands
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Osborn M, Pelling N, Walker MM, Fisher C, Nicholson AG. The value of 'mesothelium-associated' antibodies in distinguishing between metastatic renal cell carcinomas and mesotheliomas. Histopathology 2002; 41:301-7. [PMID: 12383211 DOI: 10.1046/j.1365-2559.2002.01527.x] [Citation(s) in RCA: 27] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
AIMS Despite increasing usage of mesothelium-associated antibodies in diagnosis, a meta-analysis of studies analysing these antibodies in relation to distinguishing mesothelioma from renal cell carcinoma shows a paucity of published data. Given the clinical importance of elucidating this differential diagnosis, we compared the phenotypes of these two tumours using a panel of antibodies comprising recently described 'mesothelium-associated' antibodies and the more established 'epithelium-associated' antibodies. METHODS AND RESULTS We applied an antibody panel comprising calretinin, cytokeratin (CK)5/6, thrombomodulin, carcinoembryonic antigen (CEA), BerEP4 and BCA225 to 37 cases of pleural mesotheliomas and 40 cases of renal cell carcinoma (27 primary tumours and 13 metastatic to the pleura). All mesotheliomas were either purely epithelioid or of mixed type. Cases of renal cell carcinoma were graded and classified as to cell type and architecture. For mesotheliomas, 0% stained for CEA, 16% for BerEP4, 83% for BCA225, 78% for CK5/6, 86% for thrombomodulin and 97% showed nuclear staining for calretinin. For renal cell carcinomas, 0% stained for CEA, 50% for BerEP4, 88% for BCA225, 5% for CK5/6, 32% for thrombomodulin and 10% showed nuclear staining for calretinin. CONCLUSION Calretinin, CK5/6 and BerEP4 appear the most useful antibodies in helping to distinguish between renal cell carcinomas and mesotheliomas, although BerEP4 was not particularly sensitive for renal cell carcinomas. Thrombomodulin was not as specific as the other 'mesothelium-associated' antibodies in this study, reflecting how staining for mesothelium-associated antibodies varies in carcinomas from different primary sites, and such variations should be taken into account when assessing the differential diagnosis of mesothelioma. In cases where doubt remains over distinguishing metastatic renal cell carcinoma from mesothelioma, data from such a panel should be viewed with caution and assessed in association with clinical, imaging and morphological features.
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Affiliation(s)
- M Osborn
- Department of Histopathology, Royal Brompton Hospital, London, UK
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Prelle K, Holtz W, Osborn M. Immunocytochemical analysis of vimentin expression patterns in porcine embryos suggests mesodermal differentiation from day 9 after conception. Anat Histol Embryol 2001; 30:339-44. [PMID: 11820402 DOI: 10.1046/j.1439-0264.2001.00341.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [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: 11/20/2022]
Abstract
The expression of the intermediate filament proteins vimentin and keratin in porcine embryos was studied by whole-mount immunocytochemistry between day 7 and day 11 after conception. Expression of vimentin was first detected in the inner cell mass of about 50% of the 9-day-old embryos. In elongated 11-day-old embryos, cells expressing vimentin were observed in the epiblast (after disappearance of Rauber's membrane) and in cells migrating from the epiblast between the trophoblast and the underlying hypoblast layer. A keratin-positive response was observed in trophectoderm cells at all stages. These findings suggest that inner cell mass cells in the pig start differentiating into mesodermal cells not later than day 9 after conception. While the delamination of the mesodermal germ layer is known to correlate with the loss of pluripotency of the inner cell mass cells, the early onset of mesodermal differentiation in the porcine embryo, characterized by vimentin expression and in contrast to the mouse, could in part be responsible for the lack of success in establishing pluripotent embryonic stem cell lines in this species. Our results suggest that further attempts to isolate inner cell mass-derived pluripotent cells should be attempted well before day 9 after conception.
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Affiliation(s)
- K Prelle
- Institute of Animal Breeding and Genetics, Georg-August-University Göttingen, and Max Planck-Institute for Biophysical Chemistry, Germany.
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Abstract
Antibodies recognizing tissue-specific antigens are widely used to identify the histological origin of tumors. Here we tested the fidelity of selected tissue markers on all 167 solid tumor-derived continuous cell lines in the DSMZ cell lines bank. Most lines had an intermediate filament content consistent with the tumor type from which they were derived. Thus, 93% of all carcinoma cell lines expressed keratin filaments. With certain antibodies, some subclassification was possible. For example, the CK7 keratin 7 antibody can differentiate between colon and pancreas-derived carcinoma cell lines. Cell lines derived from non-carcinomas, in general, did not express keratin but were vimentin-positive. Four of 10 glioma/astrocytoma cell lines expressed GFAP, five of six neuroblastoma cell lines expressed neurofilaments, and the TE-671 rhabdomyosarcoma cell line expressed desmin. When other tissue markers were tested, 12/16 melanoma-derived cell lines expressed HMB-45, while PSA, CA125, and thyroglobulin were less useful. These results demonstrate that cell lines retain some but not all markers typical of the original tumor type and identify certain markers useful in characterizing the histological origin of cell lines. Our data question the identity of some cell lines submitted to the bank in the past. The immunoprofiles of 167 solid tumor-derived and 131 hematopoetic cell lines can be found at www.dsmz.de.
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Affiliation(s)
- H Quentmeier
- DSMZ, German Collection of Microorganisms and Cell Cultures, Department of Human and Animal Cell Cultures, Braunschweig, Germany.
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Domagala W, Welcker M, Chosia M, Karbowniczek M, Harezga B, Bartkova J, Bartek J, Osborn M. p21/WAF1/Cip1 expression in invasive ductal breast carcinoma: relationship to p53, proliferation rate, and survival at 5 years. Virchows Arch 2001; 439:132-40. [PMID: 11561753 DOI: 10.1007/s004280100410] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [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: 12/01/2022]
Abstract
The p21/WAF1/Cipl antibody, DCS-60, was characterized by means of immunoblotting and immunofluorescence on a variety of human breast cancer cell lines. Heterogeneous staining of nuclei was observed with strong staining of cells in early G1. p21/WAF1/Cipl expression in invasive ductal, not otherwise specified breast carcinomas was determined using immunohistochemistry with this antibody and computerized image analysis. Two hundred and twenty-two tumors, including 130 from patients with no axillary node involvement, were examined. p21-positive tumor cell nuclei were found in 30% of the breast carcinomas. The percentage of tumor cell nuclei that were positive ranged from less than 1% to greater than 10%. In the whole cohort of patients, p21 expression was significantly associated with a low histological grade. In the node-negative group, there was a significant negative correlation between p21 positivity and a high (>10%) MIB-1 score. The mean MIB-1 score was significantly lower in p21-positive tumors in the whole cohort of patients (P=0.03) and in the nodenegative group (P=0.02). No association was found between p21 expression and overall survival at 5 years. With respect to p21/p53 phenotype, the significant difference in survival was noted only for the group of patients treated with adjuvant chemotherapy. The p21- p53+ phenotype had the worst survival (58% surviving 5 years), while the p21+ p53- phenotype had good survival (83% surviving 5 years; P<0.05). The results seem to suggest a correlation between p21/p53 phenotype and response to adjuvant chemotherapy.
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MESH Headings
- Antibodies, Monoclonal
- Antigens, Nuclear
- Biomarkers/analysis
- Breast Neoplasms/metabolism
- Breast Neoplasms/mortality
- Breast Neoplasms/pathology
- Breast Neoplasms/therapy
- Carcinoma, Ductal, Breast/metabolism
- Carcinoma, Ductal, Breast/mortality
- Carcinoma, Ductal, Breast/secondary
- Carcinoma, Ductal, Breast/therapy
- Cell Division
- Chemotherapy, Adjuvant
- Cyclin-Dependent Kinase Inhibitor p21
- Cyclins/immunology
- Cyclins/metabolism
- Disease-Free Survival
- Female
- Humans
- Immunoenzyme Techniques
- Ki-67 Antigen
- Lymph Nodes/pathology
- Lymphatic Metastasis
- Nuclear Proteins/metabolism
- Survival Rate
- Tumor Cells, Cultured/metabolism
- Tumor Suppressor Protein p53/metabolism
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Affiliation(s)
- W Domagala
- Department of Pathology, Faculty of Medicine, Pomeranian Medical Academy, Szczecin, Poland
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36
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Osborn M, Thompson EM. What have we learnt from the Alder Hey affair? Asking for consent would halt decline in voluntary necropsies. BMJ 2001; 322:1542-3. [PMID: 11439991] [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: 02/20/2023]
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37
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Abstract
The yeast two-hybrid system was used to identify binding partners of NuMA, a component of the nuclear matrix in interphase cells. By using the C-terminal half of NuMA as bait, a human cDNA sequence coding for a 223-amino acid protein with a non-helical N-terminal domain and a C-terminal alpha-helical portion was identified and fully sequenced. It was identical to GAS41, a sequence amplified in human gliomas. The sequence of the homologous Drosophila protein was established, and the alignment for GAS41 from nine different species showed that GAS41 is a general eukaryotic protein found in species as diverse as Arabidopsis, Drosophila, Caenorhabditis elegans, yeast, and man. Northern blot analysis showed a single transcript in eight human tissues. A polyclonal antibody to GAS41 showed a dotted staining pattern in interphase nuclei and a uniform distribution in mitotic cells. A GFP-GAS41 fusion protein displayed equivalent patterns. In vitro GAS41 bound to the C-terminal part of the rod region of NuMA, as shown by dot overlay and by surface plasmon resonance measurements. The K(d) of the complex was 2 x 10(-)(7) m. GAS41 is related to the AF-9 and ENL proteins, which are putative transcription factors found as fusion proteins in some acute leukemias. The NuMA/GAS41 interaction may provide a link between nuclear structure and gene expression.
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Affiliation(s)
- J Harborth
- Department of Biochemistry, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany.
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39
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Affiliation(s)
- M Upadhyaya
- Institute of Medical Genetics, Cardiff, United Kingdom
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40
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Affiliation(s)
- N J Sebire
- Department of Histopathology, St Mary's Hospital, Paddington, London, UK
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41
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Osborn M, Cooper DN, Upadhyaya M. Molecular analysis of the 5'-flanking region of the neurofibromatosis type 1 (NF1) gene: identification of five sequence variants. Clin Genet 2000; 57:221-4. [PMID: 10782929 DOI: 10.1034/j.1399-0004.2000.570308.x] [Citation(s) in RCA: 9] [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: 11/23/2022]
Abstract
Dideoxy fingerprinting was used to analyse the 5' flanking region of the neurofibromin (NF1) gene in a panel of 380 neurofibromatosis type 1 (NF1) patients. Five polymorphisms/rare variants were identified at positions -412, - 402, + 16, + 25 and + 132, but control data indicated that these were unlikely to be of pathological significance. Promoter mutations in the NF1 gene are not, therefore, a common cause of NF1. This notwithstanding, a reporter gene assay was performed to determine if these variants could affect the expression of the NF1 gene, and all three changes in the 5'-untranslated region (UTR) (+ 16, + 25, + 132) were found to be associated with a 60-70% increase in reporter gene expression.
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Affiliation(s)
- M Osborn
- Institute of Medical Genetics, University of Wales College of Medicine, Heath Park, Cardiff, UK
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42
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Abstract
We review the properties of NuMA, concentrating on a possible role for NuMA as a scaffold protein in the interphase nucleus. NuMA is a component of the nuclear matrix in interphase cells and translocates to the spindle poles in mitosis. NuMA has a secondary structure in which a long central rod domain that forms a double-stranded coiled coil is flanked by globular terminal domains. In vitro assembly experiments with bacterially expressed recombinant protein showed that NuMA seems not to form filaments, but instead builds multiarm oligomers by interaction of the C-terminal globular domains. Transient overexpression of NuMA in HeLa cells induced the formation of a three-dimensional lattice with a quasihexagonal organization that fills the nucleus. Use of mutant constructs showed that the lattice spacing depended on the length of the rod domain. Using a 12-arm oligomer as the structural unit, computer modeling can explain the observed nuclear lattices. The flexibility of the NuMA molecule as well as its dynamic capacity to form lattices is a hint that NuMA may play a structural role in the architecture of the normal interphase nucleus.
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Affiliation(s)
- J Harborth
- Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
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Faravelli F, Upadhyaya M, Osborn M, Huson SM, Hayward R, Winter R. Unusual clustering of brain tumours in a family with NF1 and variable expression of cutaneous features. J Med Genet 1999; 36:893-6. [PMID: 10593996 PMCID: PMC1734278] [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: 02/14/2023]
Abstract
Neurofibromatosis type 1 (NF1) is one of the commonest autosomal dominant disorders in man. It is characterised by café au lait spots, peripheral neurofibromas, Lisch nodules, axillary freckling, skeletal dysplasia, and optic glioma. Symptomatic brain tumours occur in 1.5-2.2% of patients with NF1. We report here a family where seven members developed brain tumours. Of these, three have a clinical history strongly suggestive of NF1, while two do not fulfil diagnostic criteria for the disorder. A splice site mutation in exon 29 of the NF1 gene was found in these two subjects. This lesion is thought to be disease causative since it creates a frameshift and a premature termination of the neurofibromin protein. Different hypotheses to explain the unusual recurrence of brain tumours in this family, such as the nature of the mutation or cosegregation of other predisposing genes, are discussed.
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Affiliation(s)
- F Faravelli
- Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK
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44
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Abstract
NuMA is a nuclear matrix protein in interphase and relocates to the spindle poles in mitotis. Different NuMA constructs, in which either N- or C-terminal domains were deleted, and the full-length construct were expressed in Escherichia coli, and the NuMA polypeptides were purified to homogeneity and allowed to assemble in vitro. Electron microscopy showed that NuMA can build multiarm oligomers by interaction of the C-terminal globular domains. Each arm of the oligomer corresponds to a NuMA dimer. Oligomers with up to 10 or 12 arms have been observed for both full-length NuMA and for constructs that still contain the proximal part of the C-terminal tail domain. Other results from this laboratory have shown that transient overexpression of NuMA in HeLa cells induces a nuclear scaffold with a quasi-hexagonal organization that can fill the nuclei. Here we show that computer modelling of the three-dimensional packing of NuMA into such scaffolds can explain the different spacing of the hexagons seen when constructs with different coiled-coil lengths are used. Thus, the 12 arm oligomer, for which we have in vitro evidence, may be the structural unit from which the nuclear scaffold in transfected cells is built.
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Affiliation(s)
- J Harborth
- Department of Biochemistry, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Goettingen, Germany
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Ward J, Osborn M, Meerkin M. General practitioners and pathology testing: what else is known of their views? Med J Aust 1999; 170:188-9. [PMID: 10078190 DOI: 10.5694/j.1326-5377.1999.tb127727.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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46
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Abstract
Transient overexpression of nuclear mitotic apparatus protein (NuMA) in HeLa cells results in ordered lattices which can fill the nucleus and which are stable to detergent extraction. Electron microscopy reveals a quasi-hexagonal organization with an average spacing between the vertices of approximately 170 nm and short 6-nm-diameter rods connecting the vertices. Overexpression of a NuMA construct with an in-frame addition in the coiled-coil domain shows hexagons with the spacing increased by 42% while constructs with deletions in the coiled-coil domain yield hexagons with the spacing decreased by 40 and 19%. NuMA constructs truncated at residue 2005 or 2030 in the tail domain cause a drastic reorganization of nuclear components with relocation of the DNA, histone H1, and nucleoli to the nuclear rim. A construct lacking the head and much of the coiled-coil region also affects nuclear organization. In contrast, NuMA constructs truncated at residue 1950 or 1935 which lack the nuclear localization signal display normal nuclear structure but form cytoplasmic aggregates which also display hexagonal organization. Immunoelectron microscopy confirms that the nuclear lattices are built from NuMA. We discuss the importance of the different domains of NuMA for building the ordered in vivo lattices and whether NuMA could play a structural role in the architecture of the normal interphase nucleus.
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Affiliation(s)
- C Gueth-Hallonet
- Department of Biochemistry, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, Goettingen, 37077, Germany
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47
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Abstract
Transmission X-ray microscopy has been used to study the arrangement of cytoskeletal filaments in interphase PtK2 cells. Extraction of the soluble proteins and of some organelles with the nonionic detergent Triton X-100 was important in obtaining sufficient image contrast between the insoluble cytoskeletal filaments and the surrounding cytoplasm. If this step is not performed cytoskeletal filaments are not visualized and transmission X-ray micrographs of the cytoplasm instead show predominantly membrane-bound organelles such as vesicles and the endoplasmic reticulum. Transmission X-ray micrographs of the cytoskeletal filaments and endoplasmic reticulum in air-dried specimens, as well as in specimens examined in the wet state, can be directly compared with transmission electron micrographs of cytoskeletons prepared in the same way. The profiles seen with the two techniques are similar, although, currently, transmission X-ray micrographs have a limit of resolution of approximately 50 nm. Transmission X-ray micrographs appear to show some substructure in interphase nuclei in cells fixed either with glutaraldehyde or by cryofixation and examined in a hydrated condition.
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Affiliation(s)
- D Scherfeld
- Institute of X-ray Physics, University of Goettingen, Geiststrasse 11, Goettingen, 37073, Germany
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48
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Drass J, Kell S, Osborn M, Bausell B, Corcoran J, Moskowitz A, Fleming B. Diabetes care for Medicare beneficiaries. Attitudes and behaviors of primary care physicians. Diabetes Care 1998; 21:1282-7. [PMID: 9702434 DOI: 10.2337/diacare.21.8.1282] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To obtain information related to primary care physician (PCP) attitudes, knowledge, and practice patterns, as well as perceptions about barriers to care and the use of materials to assist in the delivery of diabetes care for elderly patients in the office setting. RESEARCH DESIGN AND METHODS A survey was mailed to a random sample (n = 900) of PCPs (internal medicine, family practice, and general practice physicians and endocrinologists) from the states of Alabama, Iowa, and Maryland who met selection criteria and provided diabetes care to > or = 25 Medicare beneficiaries during calendar year 1993. RESULTS Respondents provided self-reported information regarding diabetes care for elderly patients. PCP respondents (n = 370) considered blood glucose control to be the most important treatment goal. Most respondents (92%) considered acceptable GHb values to be those < 8%. Blood pressure measurement and foot inspections for the detection of ulcers and infection were the most commonly reported routine procedures performed as part of an office visit. Laboratory tests reported to be frequently ordered included GHb, serum creatinine, and proteinuria tests. Patient nonadherence to the treatment regimen was reported to be the most common barrier to care. The majority of respondents reported using two treatment aids in caring for patients with diabetes. CONCLUSIONS The results of this study provide some evidence that PCP self-reported attitudes, knowledge, and practice patterns in delivering diabetes care for elderly patients in the office setting more closely reflect current recommended practice than reported in previous physician surveys. Opportunities for improvement still exist.
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Affiliation(s)
- J Drass
- Center for Clinical Measurement and Improvement, Health Standards and Quality Bureau, Health Care Financing Administration, Baltimore, MD 21244-1850, USA
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49
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Upadhyaya M, Ruggieri M, Maynard J, Osborn M, Hartog C, Mudd S, Penttinen M, Cordeiro I, Ponder M, Ponder BA, Krawczak M, Cooper DN. Gross deletions of the neurofibromatosis type 1 (NF1) gene are predominantly of maternal origin and commonly associated with a learning disability, dysmorphic features and developmental delay. Hum Genet 1998; 102:591-7. [PMID: 9654211 DOI: 10.1007/s004390050746] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.2] [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: 02/08/2023]
Abstract
Mutation screening in neurofibromatosis type 1 (NF1) families has long been hampered by the complexity of the NF1 gene. By using a novel multi-track screening strategy, 67 NF1 families (54 two-generation, 13 three-generation) with a de novo mutation in the germline of the first generation were studied with two extragenic and 11 intragenic markers. The pathological lesion was identified in 31 cases. Loss of heterozygosity (LOH) in the affected individual revealed a gross gene deletion in 15 of the two-generation families; in 12 (80%) of them, the deletion was maternally derived. Eleven patients with a gross deletion exhibited developmental delay, ten had dysmorphic features and six manifested a learning disability. No gross deletion was apparent in any of the 13 three-generation families, suggesting that such lesions are subject to more intense selection. In these families, the new mutation was of paternal origin in 11 kindreds and the underlying mutational event could be characterised in three of them.
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Affiliation(s)
- M Upadhyaya
- Institute of Medical Genetics, University of Wales College of Medicine, Heath Park, Cardiff, UK
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50
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Abstract
NuMA is a component of the nuclear matrix which may play a structural role in the architecture of the interphase nucleus. During apoptosis NuMA is redistributed within the nucleus and is proteolysed from a 238-kDa form to a 180- to 200-kDa form. Here we show that the cleavage site leading to the stable fragment occurs between residues 1701 and 1725. Both the changes in morphology associated with apoptosis and the cleavage of NuMA were retarded by treatment with TPCK but not by treatment by other protease inhibitors including ICE inhibitor II.
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Affiliation(s)
- C Gueth-Hallonet
- Department of Biochemistry, Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
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