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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Abstract
Post-mortem computed tomography (PMCT) imaging is gaining popularity and acceptance for use alongside forensic autopsies of children, predominantly to aid in the detection of traumatic injuries. Recent research on this topic has provided a breadth of new information regarding the appropriate usage, imaging guidance, and diagnostic accuracy for the identification of different paediatric pathologies. Additionally, advanced CT imaging techniques, such as PMCT angiography or ventilated PMCT, have been trialled, and post-mortem micro-CT is now being used in specialist centres for the assessment of subtle fractures in extracted bone specimens. Various image post-processing methods (e.g., three-dimensional printing from PMCT imaging data) are being used for the illustration of injuries in the medicolegal setting to a lay audience and provide another avenue for the future of forensic radiology research. In this review, the evidence-based principles and benefits of post-mortem imaging for forensic investigation in childhood deaths are presented, with a particular focus on PMCT and current practices. Variations in forensic imaging strategies around the world, published diagnostic accuracy rates, and expected normal post-mortem imaging findings are discussed, as well as potential future applications and research in this area.
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Affiliation(s)
- H Edwards
- Alder Hey Children's NHS Foundation Trust, Liverpool L12 2AP, UK
| | - S C Shelmerdine
- Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK; UCL Great Ormond Street Institute of Child Health, London, UK; NIHR Great Ormond Street Hospital Biomedical Research Centre, UK
| | - O J Arthurs
- Great Ormond Street Hospital for Children NHS Foundation Trust, London WC1N 3JH, UK; UCL Great Ormond Street Institute of Child Health, London, UK; NIHR Great Ormond Street Hospital Biomedical Research Centre, UK.
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Wiles MD, Braganza M, Edwards H, Krause E, Jackson J, Tait F. Management of traumatic brain injury in the non-neurosurgical intensive care unit: a narrative review of current evidence. Anaesthesia 2023; 78:510-520. [PMID: 36633447 DOI: 10.1111/anae.15898] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2022] [Indexed: 01/13/2023]
Abstract
Each year, approximately 70 million people suffer traumatic brain injury, which has a significant physical, psychosocial and economic impact for patients and their families. It is recommended in the UK that all patients with traumatic brain injury and a Glasgow coma scale ≤ 8 should be transferred to a neurosurgical centre. However, many patients, especially those in whom neurosurgery is not required, are not treated in, nor transferred to, a neurosurgical centre. This review aims to provide clinicians who work in non-neurosurgical centres with a summary of contemporary studies relevant to the critical care management of patients with traumatic brain injury. A targeted literature review was undertaken that included guidelines, systematic reviews, meta-analyses, clinical trials and randomised controlled trials (published in English between 1 January 2017 and 1 July 2022). Studies involving key clinical management strategies published before this time, but which have not been updated or repeated, were also eligible for inclusion. Analysis of the topics identified during the review was then summarised. These included: fundamental critical care management approaches (including ventilation strategies, fluid management, seizure control and osmotherapy); use of processed electroencephalogram monitoring; non-invasive assessment of intracranial pressure; prognostication; and rehabilitation techniques. Through this process, we have formulated practical recommendations to guide clinical practice in non-specialist centres.
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Affiliation(s)
- M D Wiles
- Department of Critical Care, Major Trauma and Head Injuries, Sheffield Teaching Hospital NHS Foundation Trust, Sheffield, UK.,University of Sheffield Medical School, Sheffield, UK
| | - M Braganza
- Department of Intensive Care, Chesterfield Royal Hospital NHS Foundation Trust, Chesterfield, UK
| | - H Edwards
- Department of Neurosciences, Major Trauma and Head Injuries, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - E Krause
- Neurology and Stroke, Doncaster and Bassetlaw Teaching Hospitals NHS Foundation Trust, Doncaster, UK
| | - J Jackson
- Major Trauma and Head Injuries, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - F Tait
- Department of Anaesthesia, Northampton General Hospital NHS Trust, Northampton, UK
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Oliver R, Krueger JG, Glatt S, Vajjah P, Mistry C, Page M, Edwards H, Garcet S, Li X, Dizier B, Maroof A, Watling M, El Baghdady A, Baeten D, Ionescu L, Shaw S. Bimekizumab for the treatment of moderate-to-severe plaque psoriasis: efficacy, safety, pharmacokinetics, pharmacodynamics and transcriptomics from a phase IIa, randomized, double-blind multicentre study. Br J Dermatol 2021; 186:652-663. [PMID: 34687214 PMCID: PMC9303624 DOI: 10.1111/bjd.20827] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2021] [Indexed: 01/18/2023]
Abstract
BACKGROUND Bimekizumab is a monoclonal antibody that selectively inhibits both interleukin (IL)-17A and IL-17F, which is currently under investigation for treatment of moderate-to-severe plaque psoriasis. Maintenance dosing every 4 weeks is well established with IL-17 inhibitors for psoriasis. OBJECTIVES To investigate the possible dosing interval during bimekizumab maintenance therapy to maintain clear skin, to inform phase III studies. METHODS Forty-nine patients with moderate-to-severe plaque psoriasis received bimekizumab 320 mg at weeks 0/4, followed at week 16 by bimekizumab 320 mg (n = 17) or placebo (n = 32). Efficacy, safety, pharmacokinetics, immunogenicity and biopsy transcriptomic analyses were assessed to week 28. RESULTS At week 8, 47% of patients achieved a 100% improvement from baseline in Psoriasis Area and Severity Index (PASI 100), increasing to 57% at week 12 (8 weeks after the second dose) before decreasing. In those who received bimekizumab at week 16, PASI 100 rate increased to comparable peak levels at week 20, but reduced by week 28 to 41% (12 weeks after the third dose). The week 8 transcriptional signature observed in lesional psoriatic skin rapidly normalized to levels consistent with nonlesional skin, resulting in molecular remission. Keratinocyte-related gene products such as CXCL1 (C-X-C motif chemokine ligand 1), IL-8 (encoded by the CXCL8 gene), CCL20 (C-C motif chemokine 20), IL-36γ and IL-17C were profoundly normalized to levels associated with nonlesional skin. CONCLUSIONS Here, inhibition of IL-17F in addition to IL-17A resulted in rapid, deep clinical responses. Additionally, profound normalization of keratinocyte biology and the psoriatic transcriptome was observed, including normalization of both IL17 and IL23 gene expression by week 8. These data provide evidence to support evaluation of bimekizumab maintenance dosing both every 8 and every 4 weeks in phase III clinical trials.
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Affiliation(s)
| | - J G Krueger
- The Rockefeller University, New York, NY, USA
| | | | | | - C Mistry
- UCB Pharma, Slough, UK.,Veramed, London, UK
| | | | | | - S Garcet
- The Rockefeller University, New York, NY, USA
| | - X Li
- The Rockefeller University, New York, NY, USA
| | - B Dizier
- UCB Pharma, Braine-l'Alleud, Belgium
| | | | | | - A El Baghdady
- Institute of Pharmaceutical Science, King's College London, London, UK
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Simkus P, Edwards H, Banisauskaite A, Shelmerdine SC, Arzanauskaite M. Finding the right home for your radiology article: a useful tool. Clin Radiol 2021; 76:938-939. [PMID: 34583827 DOI: 10.1016/j.crad.2021.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Accepted: 09/08/2021] [Indexed: 11/17/2022]
Affiliation(s)
- P Simkus
- Liverpool Heart and Chest Hospital NHS Foundation Trust, Liverpool, UK
| | - H Edwards
- Liverpool Heart and Chest Hospital NHS Foundation Trust, Liverpool, UK
| | - A Banisauskaite
- Liverpool Heart and Chest Hospital NHS Foundation Trust, Liverpool, UK; Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - S C Shelmerdine
- Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; UCL Great Ormond Street Institute of Child Health, London, WC1N 1EH, UK
| | - M Arzanauskaite
- Liverpool Heart and Chest Hospital NHS Foundation Trust, Liverpool, UK; Cardiovascular Research Center-ICCC, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
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Zouboulis CC, Nogueira da Costa A, Makrantonaki E, Hou XX, Almansouri D, Dudley JT, Edwards H, Readhead B, Balthasar O, Jemec GBE, Bonitsis NG, Nikolakis G, Trebing D, Zouboulis KC, Hossini AM. Alterations in innate immunity and epithelial cell differentiation are the molecular pillars of hidradenitis suppurativa. J Eur Acad Dermatol Venereol 2020; 34:846-861. [PMID: 31838778 DOI: 10.1111/jdv.16147] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 11/20/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND The large unmet need of hidradenitis suppurativa/acne inversa (HS) therapy requires the elucidation of disease-driving mechanisms and tissue targeting. OBJECTIVE Robust characterization of the underlying HS mechanisms and detection of the involved skin compartments. METHODS Hidradenitis suppurativa/acne inversa molecular taxonomy and key signalling pathways were studied by whole transcriptome profiling. Dysregulated genes were detected by comparing lesional and non-lesional skin obtained from female HS patients and matched healthy controls using the Agilent array platform. The differential gene expression was confirmed by quantitative real-time PCR and targeted protein characterization via immunohistochemistry in another set of female patients. HS-involved skin compartments were also recognized by immunohistochemistry. RESULTS Alterations to key regulatory pathways involving glucocorticoid receptor, atherosclerosis, HIF1α and IL17A signalling as well as inhibition of matrix metalloproteases were detected. From a functional standpoint, cellular assembly, maintenance and movement, haematological system development and function, immune cell trafficking and antimicrobial response were key processes probably being affected in HS. Sixteen genes were found to characterize HS from a molecular standpoint (DEFB4, MMP1, GJB2, PI3, KRT16, MMP9, SERPINB4, SERPINB3, SPRR3, S100A8, S100A9, S100A12, S100A7A (15), KRT6A, TCN1, TMPRSS11D). Among the proteins strongly expressed in HS, calgranulin-A, calgranulin-B and serpin-B4 were detected in the hair root sheath, koebnerisin and connexin-32 in stratum granulosum, transcobalamin-1 in stratum spinosum/hair root sheath, small prolin-rich protein-3 in apocrine sweat gland ducts/sebaceous glands-ducts and matrix metallopeptidase-9 in resident monocytes. CONCLUSION Our findings highlight a panel of immune-related drivers in HS, which influence innate immunity and cell differentiation in follicular and epidermal keratinocytes as well as skin glands.
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Affiliation(s)
- C C Zouboulis
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane, Dessau, Germany.,European Hidradenitis Suppurativa Foundation e.V., Dessau, Germany
| | | | - E Makrantonaki
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane, Dessau, Germany
| | - X X Hou
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane, Dessau, Germany
| | - D Almansouri
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane, Dessau, Germany
| | - J T Dudley
- Department of Genetics and Genomic Sciences, Institute of Next Generation Healthcare, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - H Edwards
- Translational Medicine, UCB SA, Slough, UK
| | - B Readhead
- Department of Genetics and Genomic Sciences, Institute of Next Generation Healthcare, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - O Balthasar
- Institute of Pathology, Dessau Medical Center, Dessau, Germany
| | - G B E Jemec
- European Hidradenitis Suppurativa Foundation e.V., Dessau, Germany.,Department of Dermatology, Zealand University Hospital, University of Copenhagen, Roskilde, Denmark
| | - N G Bonitsis
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane, Dessau, Germany
| | - G Nikolakis
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane, Dessau, Germany.,European Hidradenitis Suppurativa Foundation e.V., Dessau, Germany
| | - D Trebing
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane, Dessau, Germany
| | - K C Zouboulis
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland
| | - A M Hossini
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Brandenburg Medical School Theodor Fontane, Dessau, Germany
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8
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Cacciottolo TM, Perikari A, van der Klaauw A, Henning E, Stadler LKJ, Keogh J, Farooqi IS, Tenin G, Keavney B, Ryan E, Budd R, Bewley M, Coelho P, Rumsey W, Sanchez Y, McCafferty J, Dockrell D, Walmsley S, Whyte M, Liu Y, Choy MK, Tenin G, Abraham S, Black G, Keavney B, Ford T, Stanley B, Good R, Rocchiccioli P, McEntegart M, Watkins S, Eteiba H, Shaukat A, Lindsay M, Robertson K, Hood S, McGeoch R, McDade R, Sidik N, McCartney P, Corcoran D, Collison D, Rush C, McConnachie A, Touyz R, Oldroyd K, Berry C, Gazdagh G, Diver L, Marshall J, McGowan R, Ahmed F, Tobias E, Curtis E, Parsons C, Maslin K, D'Angelo S, Moon R, Crozier S, Gossiel F, Bishop N, Kennedy S, Papageorghiou A, Fraser R, Gandhi S, Prentice A, Inskip H, Godfrey K, Schoenmakers I, Javaid MK, Eastell R, Cooper C, Harvey N, Watt ER, Howden A, Mirchandani A, Coelho P, Hukelmann JL, Sadiku P, Plant TM, Cantrell DA, Whyte MKB, Walmsley SR, Mordi I, Forteath C, Wong A, Mohan M, Palmer C, Doney A, Rena G, Lang C, Gray EH, Azarian S, Riva A, Edwards H, McPhail MJW, Williams R, Chokshi S, Patel VC, Edwards LA, Page D, Miossec M, Williams S, Monaghan R, Fotiou E, Santibanez-Koref M, Keavney B, Badat M, Mettananda S, Hua P, Schwessinger R, Hughes J, Higgs D, Davies J. Scientific Business Abstracts of the 113th Annual Meeting of the Association of Physicians of Great Britain and Ireland. QJM 2019; 112:724-729. [PMID: 31505685 DOI: 10.1093/qjmed/hcz175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - A Perikari
- University of Cambridge Metabolic Research Laboratories
| | | | - E Henning
- University of Cambridge Metabolic Research Laboratories
| | - L K J Stadler
- University of Cambridge Metabolic Research Laboratories
| | - J Keogh
- University of Cambridge Metabolic Research Laboratories
| | - I S Farooqi
- University of Cambridge Metabolic Research Laboratories
| | - G Tenin
- From University of Manchester
| | | | - E Ryan
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - R Budd
- Department of Infection Immunity and Cardiovascular Disease, The Florey Institute for Host-Pathogen Interactions, University of Sheffield
| | - M Bewley
- Department of Infection Immunity and Cardiovascular Disease, The Florey Institute for Host-Pathogen Interactions, University of Sheffield
| | - P Coelho
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - W Rumsey
- Stress and Repair Discovery Performance Unit, Respiratory Therapy Area
| | - Y Sanchez
- Stress and Repair Discovery Performance Unit, Respiratory Therapy Area
| | - J McCafferty
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - D Dockrell
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - S Walmsley
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - M Whyte
- Department of Respiratory Medicine, Centre for Inflammation Research, University of Edinburgh
| | - Y Liu
- From the University of Manchester
| | - M-K Choy
- From the University of Manchester
| | - G Tenin
- From the University of Manchester
| | | | - G Black
- From the University of Manchester
| | | | - T Ford
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | | | - R Good
- Golden Jubilee National Hospital
| | - P Rocchiccioli
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - M McEntegart
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | | | - H Eteiba
- Golden Jubilee National Hospital
| | | | | | | | - S Hood
- Golden Jubilee National Hospital
| | | | - R McDade
- Golden Jubilee National Hospital
| | - N Sidik
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - P McCartney
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - D Corcoran
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - D Collison
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - C Rush
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | | | - R Touyz
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
| | - K Oldroyd
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - Colin Berry
- BHF Centre of Excellence in Vascular Science and Medicine, University of Glasgow
- Golden Jubilee National Hospital
| | - G Gazdagh
- School of Medicine, Dentistry & Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow
| | - L Diver
- West of Scotland Regional Genetics Service, Laboratory Medicine Building, Queen Elizabeth University Hospital
| | - J Marshall
- Institute of Cancer Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow
| | - R McGowan
- West of Scotland Regional Genetics Service, Laboratory Medicine Building, Queen Elizabeth University Hospital
| | - F Ahmed
- Developmental Endocrinology Research Group, Royal Hospital for Children, University of Glasgow
| | - E Tobias
- Academic Unit of Medical Genetics and Clinical Pathology, Laboratory Medicine Building, Queen Elizabeth University Hospital, University of Glasgow
| | - E Curtis
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - C Parsons
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - K Maslin
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - S D'Angelo
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - R Moon
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - S Crozier
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - F Gossiel
- Academic Unit of Bone Metabolism, University of Sheffield
| | - N Bishop
- Academic Unit of Child Health, University of Sheffield
| | - S Kennedy
- Nuffield Department of Women's & Reproductive Health, John Radcliffe Hospital, University of Oxford
| | - A Papageorghiou
- Nuffield Department of Women's & Reproductive Health, John Radcliffe Hospital, University of Oxford
| | - R Fraser
- Department of Obstetrics and Gynaecology, Sheffield Hospitals NHS Trust, University of Sheffield
| | - S Gandhi
- Department of Obstetrics and Gynaecology, Sheffield Hospitals NHS Trust, University of Sheffield
| | | | - H Inskip
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - K Godfrey
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - I Schoenmakers
- Department of Medicine, Faculty of Medicine and Health Sciences, University of East Anglia
| | - M K Javaid
- NIHR Oxford Biomedical Research Centre, University of Oxford
| | - R Eastell
- Academic Unit of Bone Metabolism, University of Sheffield
| | - C Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | - N Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton
| | | | - A Howden
- School of Life Sciences, University of Dundee
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - E H Gray
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - S Azarian
- Institute of Hepatology, Foundation for Liver Research
| | - A Riva
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - H Edwards
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - M J W McPhail
- School of Immunology and Microbial Sciences, King's College London
- Institute of Liver Studies & Transplantation, King's College Hospital
| | - R Williams
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - S Chokshi
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - V C Patel
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
- Institute of Liver Studies & Transplantation, King's College Hospital
| | - L A Edwards
- Institute of Hepatology, Foundation for Liver Research
- School of Immunology and Microbial Sciences, King's College London
| | - D Page
- University of Manchester
- Manchester Metropolitan University
| | - M Miossec
- Manchester Metropolitan University
- University of Newcastle
| | | | | | | | | | | | - M Badat
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| | - S Mettananda
- Department of Paediatrics, Faculty of Medicine, University of Kelaniya
| | - P Hua
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| | - R Schwessinger
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| | - J Hughes
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| | - D Higgs
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
| | - J Davies
- MRC Molecular Haematology Unit, MRC Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital
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Gurtman A, Begier E, Mohamed N, Baber J, Sabharwal C, Haupt RM, Edwards H, Cooper D, Jansen KU, Anderson AS. The development of a staphylococcus aureus four antigen vaccine for use prior to elective orthopedic surgery. Hum Vaccin Immunother 2018; 15:358-370. [PMID: 30215582 DOI: 10.1080/21645515.2018.1523093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 01/03/2023] Open
Abstract
Staphylococcus aureus (S. aureus) is a challenging bacterial pathogen which can cause a range of diseases, from mild skin infections, to more serious and invasive disease including deep or organ space surgical site infections, life-threatening bacteremia, and sepsis. S. aureus rapidly develops resistance to antibiotic treatments. Despite current infection control measures, the burden of disease remains high. The most advanced vaccine in clinical development is a 4 antigen S. aureus vaccine (SA4Ag) candidate that is being evaluated in a phase 2b/3 efficacy study in patients undergoing elective spinal fusion surgery (STaphylococcus aureus suRgical Inpatient Vaccine Efficacy [STRIVE]). SA4Ag has been shown in early phase clinical trials to be generally safe and well tolerated, and to induce high levels of bactericidal antibodies in healthy adults. In this review we discuss the design of SA4Ag, as well as the proposed clinical development plan supporting licensure of SA4Ag for the prevention of invasive disease caused by S. aureus in elective orthopedic surgical populations. We also explore the rationale for the generalizability of the results of the STRIVE efficacy study (patients undergoing elective open posterior multilevel instrumented spinal fusion surgery) to a broad elective orthopedic surgery population due to the common pathophysiology of invasive S. aureus disease and commonalties of patient and procedural risk factors for developing postoperative S. aureus surgical site infections.
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Affiliation(s)
- A Gurtman
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - E Begier
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - N Mohamed
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - J Baber
- b Pfizer Vaccine Research and Development , Sydney , NSW , Australia
| | - C Sabharwal
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - R M Haupt
- c Medical Development, Scientific and Clinical Affairs , Pfizer, Inc ., Collegeville , PA , USA
| | - H Edwards
- d World Wide Regulatory Affairs , Pfizer Inc ., Walton Oaks , UK
| | - D Cooper
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - K U Jansen
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
| | - A S Anderson
- a Pfizer Vaccine Research and Development , Pfizer, Inc ., Pearl River , NY , USA
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Lindsay E, Renyi R, Wilkie P, Valle F, White W, Maida V, Edwards H, Foster D. Patient-centred care: a call to action for wound management. J Wound Care 2017; 26:662-677. [DOI: 10.12968/jowc.2017.26.11.662] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- E. Lindsay
- Life President of the Lindsay Leg Club Foundation and Chair of the World Union of Wound Healing Societies (WUWHS) International Panel on Patient Advocacy, The Lindsay Leg Club Foundation, Ipswich, PO Box 689, IP1 9BN
| | - R. Renyi
- Communications Consultant and Chair of the Lindsay Leg Club Foundation (2014–2017), The Lindsay Leg Club Foundation, Ipswich, PO Box 689, IP1 9BN
| | - P. Wilkie
- President and Chairman, National Association for Patient Participation, UK, National Association for Patient Participation, UK
| | - F. Valle
- University of Maryland School of Nursing, Baltimore, US
| | - W. White
- Director Educator & Advanced Practice Nurse (WM), Wendy White WoundCare, New South Wales, Australia
| | - V. Maida
- Associate Professor, University of Toronto; Assistant Clinical Professor, McMaster University, Hamilton; Division of Palliative Medicine, William Osler Health System, Toronto, Canada
| | - H. Edwards
- Professor, Faculty of Health, Queensland University of Technology, Australia
| | - D. Foster
- Chair, The Lindsay Leg Club Foundation, The Lindsay Leg Club Foundation, Ipswich, PO Box 689, IP1 9BN
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Malherbe C, Hutchinson IB, Ingley R, Boom A, Carr AS, Edwards H, Vertruyen B, Gilbert B, Eppe G. On the Habitability of Desert Varnish: A Combined Study by Micro-Raman Spectroscopy, X-ray Diffraction, and Methylated Pyrolysis-Gas Chromatography-Mass Spectrometry. Astrobiology 2017; 17:1123-1137. [PMID: 29039682 DOI: 10.1089/ast.2016.1512] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In 2020, the ESA ExoMars and NASA Mars 2020 missions will be launched to Mars to search for evidence of past and present life. In preparation for these missions, terrestrial analog samples of rock formations on Mars are studied in detail in order to optimize the scientific information that the analytical instrumentation will return. Desert varnishes are thin mineral coatings found on rocks in arid and semi-arid environments on Earth that are recognized as analog samples. During the formation of desert varnishes (which takes many hundreds of years), organic matter is incorporated, and microorganisms may also play an active role in the formation process. During this study, four complementary analytical techniques proposed for Mars missions (X-ray diffraction [XRD], Raman spectroscopy, elemental analysis, and pyrolysis-gas chromatography-mass spectrometry [Py-GC-MS]) were used to interrogate samples of desert varnish and describe their capacity to sustain life under extreme scenarios. For the first time, both the geochemistry and the organic compounds associated with desert varnish are described with the use of identical sets of samples. XRD and Raman spectroscopy measurements were used to nondestructively interrogate the mineralogy of the samples. In addition, the use of Raman spectroscopy instruments enabled the detection of β-carotene, a highly Raman-active biomarker. The content and the nature of the organic material in the samples were further investigated with elemental analysis and methylated Py-GC-MS, and a bacterial origin was determined to be likely. In the context of planetary exploration, we describe the habitable nature of desert varnish based on the biogeochemical composition of the samples. Possible interference of the geological substrate on the detectability of pyrolysis products is also suggested. Key Words: Desert varnish-Habitability-Raman spectroscopy-Py-GC-MS-XRD-ExoMars-Planetary science. Astrobiology 17, 1123-1137.
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Affiliation(s)
- C Malherbe
- 1 Department of Physics and Astronomy, University of Leicester , Leicester, UK
- 2 Laboratory of Inorganic Analytical Chemistry, Department of Chemistry, University of Liège , Liège, Belgium
| | - I B Hutchinson
- 1 Department of Physics and Astronomy, University of Leicester , Leicester, UK
| | - R Ingley
- 1 Department of Physics and Astronomy, University of Leicester , Leicester, UK
| | - A Boom
- 3 Department of Geography, University of Leicester , Leicester, UK
| | - A S Carr
- 3 Department of Geography, University of Leicester , Leicester, UK
| | - H Edwards
- 1 Department of Physics and Astronomy, University of Leicester , Leicester, UK
| | - B Vertruyen
- 4 LCIS/GREENMAT, Department of Chemistry, University of Liège , Liège, Belgium
| | - B Gilbert
- 2 Laboratory of Inorganic Analytical Chemistry, Department of Chemistry, University of Liège , Liège, Belgium
| | - G Eppe
- 2 Laboratory of Inorganic Analytical Chemistry, Department of Chemistry, University of Liège , Liège, Belgium
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Edwards H, Finlayson K. DEPRESSION IN COMMUNITY-LIVING OLDER ADULTS WITH CHRONIC VENOUS LEG ULCERS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H. Edwards
- Institute of Health and Biomedical innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia,
- Institute of Health and Biomedical Innovation, Kelvin Grove, Queensland, Australia
| | - K. Finlayson
- Institute of Health and Biomedical innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia,
- Institute of Health and Biomedical Innovation, Kelvin Grove, Queensland, Australia
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13
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Affiliation(s)
- K. Finlayson
- Institute of Health and Biomedical innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia,
- Institute of Health and Biomedical Innovation, Kelvin Grove, Queensland, Australia
| | - H. Edwards
- Institute of Health and Biomedical innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia,
- Institute of Health and Biomedical Innovation, Kelvin Grove, Queensland, Australia
| | - C. Parker
- Institute of Health and Biomedical innovation, Queensland University of Technology, Kelvin Grove, Queensland, Australia,
- Institute of Health and Biomedical Innovation, Kelvin Grove, Queensland, Australia
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Martin-Khan M, Gray L, Edwards H, Wootton R, Varghese P, Lim K, Darzins P, Dakin L. COMPREHENSIVE GERIATRIC ASSESSMENT PROCEDURE ONLINE, INCORPORATING INTERRAI ACUTE CARE ASSESSMENT. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M. Martin-Khan
- The University of Queensland, Brisbane, Queensland, Australia,
| | - L.C. Gray
- Centre for Research in Geriatric Medicine, The University of Queensland, Woolloongabba, Queensland, Australia,
| | - H. Edwards
- Queensland University of Technology, Kelvin Grove, Queensland, Australia,
| | - R. Wootton
- Centre for Research in Geriatric Medicine, The University of Queensland, Woolloongabba, Queensland, Australia,
| | - P. Varghese
- Queensland Health, Brisbane, Queensland, Australia,
| | - K. Lim
- University of Melbourne, Melbourne, Victoria, Australia,
| | - P. Darzins
- Eastern Health, Box Hill, Victoria, Australia
| | - L. Dakin
- Queensland Health, Brisbane, Queensland, Australia,
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Edwards H, Battrum G, Watts S, MacKenzie G, Le Ball K. 19 * THE INTRODUCTION OF GENERAL PRACTITIONERS (GP), CARE HOME SUPPORT TEAM (CHST) AND ANTICIPATORY MANAGEMENT PLANS (AMP) IN AN ATTEMPT TO REDUCE HOSPITAL ATTENDANCES AND ADMISSIONS FROM CARE HOMES. Age Ageing 2015. [DOI: 10.1093/ageing/afv029.19] [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
OBJECTIVE Exercise has the potential to offer a range of health benefits in addition to improving healing outcomes for people with venous leg ulcers (VLUs). However, despite evidence-based recommendations, most of these individuals do not engage in regular exercise. The aim of this study was to gain an understanding of the perspectives of adults with VLUs, in relation to exercise. METHOD This was a qualitative design using semi-structured interviews and discussions. Ten participants with venous leg ulceration volunteered to participate. Recruitment was through a specialist wound clinic. Verbatim data were collected by an experienced moderator using a semi-structured guide. Data saturation was reached after three group discussions and two interviews. A random selection of transcripts was sent back to the participants for verification. Thematic content analysis was used to determine major themes and categories. Two transcripts were independently analysed, categories and themes independently developed, cross checked and found comparable. Remaining transcripts were analysed using the developed categories and codes. RESULTS Regardless of their current exercise routine, participants reported exercising before venous leg ulceration and expressed an interest in either becoming active or maintaining an active lifestyle. Overall, four themes emerged from the findings: i) participant understanding of the relationship between chronic venous insufficiency and exercise patterns; ii) fear of harm impacts upon positive beliefs and attitudes to exercise; iii) perceived factors limit exercise; and iv) structured management facilitates exercise. CONCLUSION The value of exercise in improving outcomes in VLUs lies in its capacity to promote venous return and reduce the risk of secondary conditions in this population. Despite motivation and interest in being exercise active, people with VLUs report many obstacles. Further exploration of mechanisms that assist this patient population and promote understanding about management of barriers, coupled with promotion of enabling factors, is vital for improving their exercise participation.
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Affiliation(s)
- J O'Brien
- MApplSci (Research) PhD Candidate;, Queensland University of Technology 60 Musk Ave Kelvin Grove 4559 Australia
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Edwards H, Bishop LJ. P217 Does chemotherapy increase the risk of developing pleural infections in patients with indwelling pleural catheters?: Abstract P217 Table 1. Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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18
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Manser M, Granlund M, Edwards H, Saez A, Petersen E, Evengard B, Chiodini P. Detection of Cryptosporidium and Giardia in clinical laboratories in Europe--a comparative study. Clin Microbiol Infect 2013; 20:O65-71. [PMID: 24033667 DOI: 10.1111/1469-0691.12297] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [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: 04/10/2013] [Revised: 06/03/2013] [Accepted: 06/05/2013] [Indexed: 11/26/2022]
Abstract
To determine the routine diagnostic methods used and compare the performance in detection of oocysts of Cryptosporidium species and cysts of Giardia intestinalis in faecal samples by European specialist parasitology laboratories and European clinical laboratories. Two sets of seven formalin-preserved faecal samples, one containing cysts of Giardia intestinalis and the other, containing oocysts of Cryptosporidium, were sent to 18 laboratories. Participants were asked to examine the specimens using their routine protocol for detecting these parasites and state the method(s) used. Eighteen laboratories answered the questionnaire. For detection of Giardia, 16 of them used sedimentation/concentration followed by light microscopy. Using this technique the lower limit of detection of Giardia was 17.2 cysts/mL of faeces in the best performing laboratories. Only three of 16 laboratories used fluorescent-conjugated antibody-based microscopy. For detection of Cryptosporidium acid-fast staining was used by 14 of the 17 laboratories that examined the samples. With this technique the lower limit of detection was 976 oocysts/mL of faeces. Fluorescent-conjugated antibody-based microscopy was used by only five of the 17 laboratories. There was variation in the lower limit of detection of cysts of Giardia and oocysts of Cryptosporidium between laboratories using the same basic microscopic methods. Fluorescent-conjugated antibody-based microscopy was not superior to light microscopy under the conditions of this study. There is a need for a larger-scale multi-site comparison of the methods used for the diagnosis of these parasites and the development of a Europe-wide laboratory protocol based upon its findings.
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Affiliation(s)
- M Manser
- Department of Clinical Parasitology, Hospital for Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
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Schroeder J, Dugdale HL, Radersma R, Hinsch M, Buehler DM, Saul J, Porter L, Liker A, De Cauwer I, Johnson PJ, Santure AW, Griffin AS, Bolund E, Ross L, Webb TJ, Feulner PGD, Winney I, Szulkin M, Komdeur J, Versteegh MA, Hemelrijk CK, Svensson EI, Edwards H, Karlsson M, West SA, Barrett ELB, Richardson DS, van den Brink V, Wimpenny JH, Ellwood SA, Rees M, Matson KD, Charmantier A, Dos Remedios N, Schneider NA, Teplitsky C, Laurance WF, Butlin RK, Horrocks NPC. Fewer invited talks by women in evolutionary biology symposia. J Evol Biol 2013; 26:2063-9. [PMID: 23786459 PMCID: PMC4293461 DOI: 10.1111/jeb.12198] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 05/10/2013] [Indexed: 12/01/2022]
Abstract
Lower visibility of female scientists, compared to male scientists, is a potential reason for the under-representation of women among senior academic ranks. Visibility in the scientific community stems partly from presenting research as an invited speaker at organized meetings. We analysed the sex ratio of presenters at the European Society for Evolutionary Biology (ESEB) Congress 2011, where all abstract submissions were accepted for presentation. Women were under-represented among invited speakers at symposia (15% women) compared to all presenters (46%), regular oral presenters (41%) and plenary speakers (25%). At the ESEB congresses in 2001–2011, 9–23% of invited speakers were women. This under-representation of women is partly attributable to a larger proportion of women, than men, declining invitations: in 2011, 50% of women declined an invitation to speak compared to 26% of men. We expect invited speakers to be scientists from top ranked institutions or authors of recent papers in high-impact journals. Considering all invited speakers (including declined invitations), 23% were women. This was lower than the baseline sex ratios of early-mid career stage scientists, but was similar to senior scientists and authors that have published in high-impact journals. High-quality science by women therefore has low exposure at international meetings, which will constrain Evolutionary Biology from reaching its full potential. We wish to highlight the wider implications of turning down invitations to speak, and encourage conference organizers to implement steps to increase acceptance rates of invited talks.
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Affiliation(s)
- J Schroeder
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield S10 2TN, UK
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Edwards H, Wikkelsø A, Afshari A, Langhoff-Roos J, Møller A, Stensballe J. P-073 Multitransfusion in relation to postpartum haemorrhage. Thromb Res 2013. [DOI: 10.1016/s0049-3848(13)70119-1] [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: 12/01/2022]
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Campbell S, Edwards H, Sudlow C. 076 Family history of disease is more accurate in women than men: a potential explanation for apparent gender differences in heritability of stroke. J Neurol Neurosurg Psychiatry 2012. [DOI: 10.1136/jnnp-2011-301993.118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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22
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Hargreaves K, Cameron M, Edwards H, Gray R, Deane K. Is the use of symphysis-fundal height measurement and ultrasound examination effective in detecting small or large fetuses? J OBSTET GYNAECOL 2011; 31:380-3. [PMID: 21627417 DOI: 10.3109/01443615.2011.567343] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We investigated the accuracy of using symphysis pubis-fundal height measurement and ultrasonically derived estimation of fetal weight for identifying small-for-gestational-age (SGA) and large-for-gestational-age (LGA) fetuses. A retrospective cohort study was performed using computerised records of all non-diabetic women referred for an ultrasound growth scan (US) with clinically suspected SGA or LGA singleton fetuses from 35 weeks' gestation between October 2008 and March 2009 (n = 185). Birth weight data were also collected for all births over the study period (n = 3200). One-third (34%) of ultrasound estimated fetal weights were inaccurate by >10%. However, an inaccurate ultrasound estimation did not significantly increase the likelihood of spontaneous or induced onset of labour or delivery by caesarean section. Most (79%) growth scans were performed on well-grown fetuses. The majority (80%) of SGA and LGA babies in our cohort were not identified by clinicians during routine antenatal care. From 3,200 live births, there were a total of 59 infants weighing <2,500 g or >5,000 g. Of these, only 12 had been referred for an ultrasound growth scan, indicating that abdominal palpation and fundal height measurement has a 20% sensitivity in detecting SGA or LGA fetuses. Of the 12, four were detected using ultrasound, indicating a 33% detection rate. Although ultrasound has a slightly higher sensitivity, neither clinical examination using fundal height measurements nor 3rd trimester ultrasound examinations are effective at detecting SGA or LGA fetuses.
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Affiliation(s)
- K Hargreaves
- Norfolk and Norwich University Hospital, Norwich, UK.
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Ruan J, Johnson AS, Lumpkin AH, Thurman-Keup R, Edwards H, Fliller RP, Koeth TW, Sun YE. First observation of the exchange of transverse and longitudinal emittances. Phys Rev Lett 2011; 106:244801. [PMID: 21770575 DOI: 10.1103/physrevlett.106.244801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Indexed: 05/31/2023]
Abstract
An experimental program to demonstrate a novel phase-space manipulation in which the horizontal and longitudinal emittances of a particle beam are exchanged has been completed at the Fermilab A0 Photoinjector. A new beam line, consisting of a TM(110) deflecting mode cavity flanked by two horizontally dispersive doglegs has been installed. We report on the first direct observation of transverse and longitudinal emittance exchange.
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Affiliation(s)
- J Ruan
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
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Edwards H, Clayton EB. FRACTURES OF THE LOWER END OF THE RADIUS IN ADULTS: COLLES'S FRACTURE AND BACKFIRE FRACTURE. Br Med J 2011; 1:61-5. [PMID: 20774391 DOI: 10.1136/bmj.1.3549.61] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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27
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Da Silva VMF, Fettuccia D, Rodrigues ES, Edwards H, Moreno IB, Moura JF, Wedekin LL, Bazzalo M, Emin-Lima NR, Carmo NAS, Siciliano S, Utreras B. V. Report of the Working Group on Distribution, Habitat Characteristics and Preferences, and Group Size. ACTA ACUST UNITED AC 2010. [DOI: 10.5597/lajam00151] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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28
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Scott MC, Rosen ME, Hamer SA, Baker E, Edwards H, Crowder C, Tsao JI, Hickling GJ. High-prevalence Borrelia miyamotoi infection among [corrected] wild turkeys (Meleagris gallopavo) in Tennessee. J Med Entomol 2010; 47:1238-1242. [PMID: 21175079 DOI: 10.1603/me10075] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
During spring and fall 2009, 60 wild turkeys (Meleagris gallopavo) harvested by Tennessee hunters were surveyed for Borrelia spp. by sampling their blood, tissue, and attached ticks. In both seasons, 70% of turkeys were infested with juvenile Amblyomma americanum; one spring turkey hosted an adult female Ixodes brunneus. Polymerase chain reaction assays followed by DNA sequencing indicated that 58% of the turkeys were positive for the spirochete Borrelia miyamotoi, with tissue testing positive more frequently than blood (P = 0.015). Sequencing of the 16S-23S rRNA intergenic spacer indicated > or = 99% similarity to previously published sequences of the North American strain of this spirochete. Positive turkeys were present in both seasons and from all seven middle Tennessee counties sampled. No ticks from the turkeys tested positive for any Borrelia spp. This is the first report of B. miyamotoi in birds; the transmission pathways and epidemiological significance of this high-prevalence spirochetal infection remain uncertain.
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Affiliation(s)
- M C Scott
- Center for Wildlife Health, University of Tennessee, Knoxville, TN 37996, USA.
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Shuter P, Edwards H, Abbey J. Exploring the biggest challenges for family caregivers of people with severe dementia. Alzheimers Dement 2009. [DOI: 10.1016/j.jalz.2009.05.280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- P. Shuter
- Queensland University of TechnologyKelvin GroveQLDAustralia
| | - H. Edwards
- Queensland University of TechnologyKelvin GroveQLDAustralia
| | - J. Abbey
- Queensland University of TechnologyKelvin GroveQLDAustralia
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Shuter P, Edwards H, Beattie E, Sacre S. Protective and risk factors for health outcomes in family caregivers of people with dementia following bereavement. Alzheimers Dement 2009. [DOI: 10.1016/j.jalz.2009.07.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P. Shuter
- Queensland University of TechnologyKelvin GroveQLDAustralia
| | - H. Edwards
- Queensland University of TechnologyKelvin GroveQLDAustralia
| | - E. Beattie
- Queensland University of TechnologyKelvin GroveQLDAustralia
| | - S. Sacre
- Queensland University of TechnologyKelvin GroveQLDAustralia
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Walsh A, Edwards H, Fraser J. Attitudes and subjective norms: determinants of parents' intentions to reduce childhood fever with medications. Health Educ Res 2009; 24:531-545. [PMID: 18974070 DOI: 10.1093/her/cyn055] [Citation(s) in RCA: 15] [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] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Fever is a natural protective response of the host organism. Mild to moderate fevers, up to 40.0 degrees C, have immunological benefits and do not need to be reduced. However, parents regularly reduce fever with medications to prevent perceived harmful outcomes. This study identified the determinants of parents' intentions to reduce childhood fever with medications. A community-based cross-sectional survey was conducted with 391 Australian parents of children aged between 6 months and 5 years. Recruitment was through advertising, face-to-face and snowball methods. The survey targeted constructs of the Theory of Planned Behavior: attitudes, subjective norms, perceived behavioral control, intentions and previously identified background factors. Structural equation modeling identified 69% of the variance in intentions. The strongest influences were from non-scientifically based attitudes (phobic) (beta=0.55) and subjective norms (husband/partner and doctors) (beta=0.36). Attitudes (beta=0.69) and subjective norms (beta=0.52) were strongly determined by child medication behavior (whether the child took medications easily when febrile) which had a total effect on intentions of beta=0.66. Perceived control, education and number of children had minimal influence on intentions. There is an urgent need for (i) the education of both parents in the benefits of fever and (ii) for doctors to consistently provide parents with evidence-based information.
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Affiliation(s)
- A Walsh
- School of Nursing, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane 4059, Australia.
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Utzinger J, Botero-Kleiven S, Castelli F, Chiodini PL, Edwards H, Köhler N, Gulletta M, Lebbad M, Manser M, Matthys B, N'Goran EK, Tannich E, Vounatsou P, Marti H. Microscopic diagnosis of sodium acetate-acetic acid-formalin-fixed stool samples for helminths and intestinal protozoa: a comparison among European reference laboratories. Clin Microbiol Infect 2009; 16:267-73. [PMID: 19456836 DOI: 10.1111/j.1469-0691.2009.02782.x] [Citation(s) in RCA: 112] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The present study aimed to compare the diagnostic performance of different European reference laboratories in diagnosing helminths and intestinal protozoa, using an ether-concentration method applied to sodium acetate-acetic acid-formalin (SAF)-preserved faecal samples. In total, 102 stool specimens were analysed during a cross-sectional parasitological survey in urban farming communities in Côte d'Ivoire. Five SAF-preserved faecal samples were prepared from each specimen and forwarded to the participating reference laboratories, processed and examined under a microscope adhering to a standard operating procedure (SOP). Schistosoma mansoni (cumulative prevalence: 51.0%) and hookworm (cumulative prevalence: 39.2%) were the predominant helminths. There was excellent agreement (kappa > 0.8; p < 0.001) among the reference laboratories for the diagnosis of S. mansoni, hookworm, Trichuris trichiura and Ascaris lumbricoides. Moderate agreement (kappa = 0.54) was found for Hymenolepis nana, and lesser agreement was observed for other, less prevalent helminths. The predominant intestinal protozoa were Entamoeba coli (median prevalence: 67.6%), Blastocystis hominis (median prevalence: 55.9%) and Entamoeba histolytica/Entamoeba dispar (median prevalence: 47.1%). Substantial agreement among reference laboratories was found for E. coli (kappa = 0.69), but only fair or moderate agreement was found for other Entamoeba species, Giardia intestinalis and Chilomastix mesnili. There was only poor agreement for B. hominis, Isospora belli and Trichomonas intestinalis. In conclusion, although common helminths were reliably diagnosed by European reference laboratories, there was only moderate agreement between centres for pathogenic intestinal protozoa. Continued external quality assessment and the establishment of a formal network of reference laboratories is necessary to further enhance both accuracy and uniformity in parasite diagnosis.
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Affiliation(s)
- J Utzinger
- Department of Public Health and Epidemiology, Swiss Tropical Institute, Basel, Switzerland.
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Skelton H, Edwards H, Smith K. Cutaneous Hyalohyphomycosis Secondary to Paecilomyces Species Treated with Voriconazole in an Immune Compentent Host. J Cutan Pathol 2008. [DOI: 10.1111/j.0303-6987.2005.320gw.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: 11/29/2022]
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LaFiura KM, Edwards H, Taub JW, Matherly LH, Fontana JA, Mohamed AN, Ravindranath Y, Ge Y. Identification and characterization of novel AML1-ETO fusion transcripts in pediatric t(8;21) acute myeloid leukemia: a report from the Children's Oncology Group. Oncogene 2008; 27:4933-42. [PMID: 18469864 DOI: 10.1038/onc.2008.134] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
t(8;21)(q22;q22) results in the AML1-ETO (A1E) fusion gene and is a common cytogenetic abnormality in acute myeloid leukemia (AML). Although insertions at the breakpoint region of the A1E fusion transcripts have been reported, additional structural alterations are largely uncharacterized. By RT-PCR amplifications and DNA sequencing, numerous in-frame and out-of-frame AML1b-ETO and AML1c-ETO transcripts were identified in 13 pediatric t(8;21) AMLs, likely resulting from alternate splicing, internal deletions and/or breakpoint region insertions involving both the AML1 (RUNX1) and ETO regions. The in-frame A1E fusion transcript forms represented minor forms. These structure alterations were found in AML1c-ETO but not AML1b-ETO transcripts in two adult t(8;21) AMLs. Although no analogous alterations were detected in native AML1b transcripts, identical alterations in native ETO transcripts were identified. When transfected into HeLa cells, only AML1b, and not the in-frame A1E forms, transactivated the GM-CSF promoter. In co-transfection experiments, the effects of A1E proteins on GM-CSF transactivation by AML1b ranged from repressive to activating. Our results demonstrate a remarkable and unprecedented heterogeneity in A1E fusion transcripts in t(8;21) myeloblasts and suggest that synthesis of alternate A1E transcript and protein forms can significantly impact the regulation of AML1 responsive genes.
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Affiliation(s)
- K M LaFiura
- Developmental Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA
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Edwards H. Study of the reactions of surface hydroxyl groups of a chrysotile asbestos with organic silanes by means of infra-red spectroscopy. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/jctb.5010200303] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Gordon L, Edwards H, Courtney M, Finlayson K, Shuter P, Lindsay E. A cost-effectiveness analysis of two community models of care for patients with venous leg ulcers. J Wound Care 2006; 15:348-53. [PMID: 17001943 DOI: 10.12968/jowc.2006.15.8.26942] [Citation(s) in RCA: 27] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
AIM To conduct a cost-effectiveness analysis based on data from a randomised controlled trial comparing traditional community home nursing with a community Leg Club model for chronic venous leg ulcer management in the south-east metropolitan area of Queensland, Australia. METHOD Participants were randomised to the Leg Club (n=28) or home visits (n=28). Data were obtained on resources/related costs incurred by the service provider, clients and carers, and the community. RESULTS From the collective perspective (service provider, clients and carers, and the community), at six months the incremental cost per healed ulcer was dollars AU515 (Euros 318) and the incremental cost per reduced pain score was dollars AU322 (Euros 199). For the service provider, Leg Club intervention resulted in cost savings and better health effects when compared with home nursing. CONCLUSION On both clinical and economic grounds, the Leg Club model appears to be more cost-effective than traditional home nursing for the treatment of chronic venous leg ulcers. However, clients and the local community contribute substantial financial and in-kind support to the operation of both services.
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Affiliation(s)
- L Gordon
- Institute of Health and Biomedical Innnovation School of Nursing, Queensland University of Technology, Brisbane, Australia.
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Abstract
Subcellular events of Erysiphe cichoracearum infections of epidermal cells were visualized in living tissues of Arabidopsis plants carrying various green fluorescent protein (GFP)-tagged organelles via laser scanning confocal microscopy. Early in the infection sequence, cytoplasm and organelles moved towards penetration sites and accumulated near penetration pegs. Peroxisomes appeared to accumulate preferentially relative to the cytoplasm at penetration sites. Another early event, which preceded haustorium formation, was the aggregation of some GFP-tagged plasma membrane marker proteins into rings around penetration sites, which extended across cell-wall boundaries into neighboring cells. This feature localized to sites where papillae were deposited. The extrahaustorial membrane (EHM) encases the fungal feeding structure, the haustorium, separating it from the host cytoplasm. Eight plasma membrane markers were excluded from the EHM and remained in a collar-like formation around the haustorial neck. These observations support the suggestions that the EHM is a unique, specialized membrane and is different from the plasma membrane. Our results suggested two possibilities for the origin of the EHM: invagination of the plasma membrane coupled with membrane differentiation; or de novo synthesis of the EHM by targeted vesicle trafficking.
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Affiliation(s)
- Serry Koh
- Carnegie Institution, Department of Plant Biology, 260 Panama St, Stanford, CA 93405, USA
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Ramonell K, Berrocal-Lobo M, Koh S, Wan J, Edwards H, Stacey G, Somerville S. Loss-of-function mutations in chitin responsive genes show increased susceptibility to the powdery mildew pathogen Erysiphe cichoracearum. Plant Physiol 2005; 138:1027-36. [PMID: 15923325 PMCID: PMC1150417 DOI: 10.1104/pp.105.060947] [Citation(s) in RCA: 137] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Chitin is a major component of fungal walls and insect exoskeletons. Plants produce chitinases upon pathogen attack and chito-oligomers induce defense responses in plants, though the exact mechanism behind this response is unknown. Using the ATH1 Affymetrix microarrays consisting of about 23,000 genes, we examined the response of Arabidopsis (Arabidopsis thaliana) seedlings to chito-octamers and hydrolyzed chitin after 30 min of treatment. The expression patterns elicited by the chito-octamer and hydrolyzed chitin were similar. Microarray expression profiles for several genes were verified via northern analysis or quantitative reverse transcription-PCR. We characterized T-DNA insertion mutants for nine chito-oligomer responsive genes. Three of the mutants were more susceptible to the fungal pathogen, powdery mildew, than wild type as measured by conidiophore production. These three mutants included mutants of genes for two disease resistance-like proteins and a putative E3 ligase. The isolation of loss-of-function mutants with enhanced disease susceptibility provides direct evidence that the chito-octamer is an important oligosaccharide elicitor of plant defenses. Also, this study demonstrates the value of microarray data for identifying new components of uncharacterized signaling pathways.
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Affiliation(s)
- Katrina Ramonell
- Department of Biological Sciences, University of Alabama, Tuscaloosa, Alabama 35487-0344, USA.
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Edwards H, Starling SP, Heisler K. 166 CHILD MALTREATMENT TRAINING AND KNOWLEDGE AMONG PEDIATRIC, EMERGENCY MEDICINE, AND FAMILY MEDICINE RESIDENTS. J Investig Med 2005. [DOI: 10.2310/6650.2005.00006.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Munkvold JD, Greene RA, Bermudez-Kandianis CE, La Rota CM, Edwards H, Sorrells SF, Dake T, Benscher D, Kantety R, Linkiewicz AM, Dubcovsky J, Akhunov ED, Dvorák J, Miftahudin, Gustafson JP, Pathan MS, Nguyen HT, Matthews DE, Chao S, Lazo GR, Hummel DD, Anderson OD, Anderson JA, Gonzalez-Hernandez JL, Peng JH, Lapitan N, Qi LL, Echalier B, Gill BS, Hossain KG, Kalavacharla V, Kianian SF, Sandhu D, Erayman M, Gill KS, McGuire PE, Qualset CO, Sorrells ME. Group 3 chromosome bin maps of wheat and their relationship to rice chromosome 1. Genetics 2004; 168:639-50. [PMID: 15514041 PMCID: PMC1448823 DOI: 10.1534/genetics.104.034819] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2003] [Accepted: 06/01/2004] [Indexed: 01/24/2023] Open
Abstract
The focus of this study was to analyze the content, distribution, and comparative genome relationships of 996 chromosome bin-mapped expressed sequence tags (ESTs) accounting for 2266 restriction fragments (loci) on the homoeologous group 3 chromosomes of hexaploid wheat (Triticum aestivum L.). Of these loci, 634, 884, and 748 were mapped on chromosomes 3A, 3B, and 3D, respectively. The individual chromosome bin maps revealed bins with a high density of mapped ESTs in the distal region and bins of low density in the proximal region of the chromosome arms, with the exception of 3DS and 3DL. These distributions were more localized on the higher-resolution group 3 consensus map with intermediate regions of high-mapped-EST density on both chromosome arms. Gene ontology (GO) classification of mapped ESTs was not significantly different for homoeologous group 3 chromosomes compared to the other groups. A combined analysis of the individual bin maps using 537 of the mapped ESTs revealed rearrangements between the group 3 chromosomes. Approximately 232 (44%) of the consensus mapped ESTs matched sequences on rice chromosome 1 and revealed large- and small-scale differences in gene order. Of the group 3 mapped EST unigenes approximately 21 and 32% matched the Arabidopsis coding regions and proteins, respectively, but no chromosome-level gene order conservation was detected.
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Affiliation(s)
- J D Munkvold
- Department of Plant Breeding, Cornell University, Ithaca, New York 14853, USA
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41
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Lazo GR, Chao S, Hummel DD, Edwards H, Crossman CC, Lui N, Matthews DE, Carollo VL, Hane DL, You FM, Butler GE, Miller RE, Close TJ, Peng JH, Lapitan NLV, Gustafson JP, Qi LL, Echalier B, Gill BS, Dilbirligi M, Randhawa HS, Gill KS, Greene RA, Sorrells ME, Akhunov ED, Dvorák J, Linkiewicz AM, Dubcovsky J, Hossain KG, Kalavacharla V, Kianian SF, Mahmoud AA, Miftahudin, Ma XF, Conley EJ, Anderson JA, Pathan MS, Nguyen HT, McGuire PE, Qualset CO, Anderson OD. Development of an expressed sequence tag (EST) resource for wheat (Triticum aestivum L.): EST generation, unigene analysis, probe selection and bioinformatics for a 16,000-locus bin-delineated map. Genetics 2004; 168:585-93. [PMID: 15514037 PMCID: PMC1448819 DOI: 10.1534/genetics.104.034777] [Citation(s) in RCA: 84] [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] [Received: 01/05/2004] [Accepted: 06/01/2004] [Indexed: 01/06/2023] Open
Abstract
This report describes the rationale, approaches, organization, and resource development leading to a large-scale deletion bin map of the hexaploid (2n = 6x = 42) wheat genome (Triticum aestivum L.). Accompanying reports in this issue detail results from chromosome bin-mapping of expressed sequence tags (ESTs) representing genes onto the seven homoeologous chromosome groups and a global analysis of the entire mapped wheat EST data set. Among the resources developed were the first extensive public wheat EST collection (113,220 ESTs). Described are protocols for sequencing, sequence processing, EST nomenclature, and the assembly of ESTs into contigs. These contigs plus singletons (unassembled ESTs) were used for selection of distinct sequence motif unigenes. Selected ESTs were rearrayed, validated by 5' and 3' sequencing, and amplified for probing a series of wheat aneuploid and deletion stocks. Images and data for all Southern hybridizations were deposited in databases and were used by the coordinators for each of the seven homoeologous chromosome groups to validate the mapping results. Results from this project have established the foundation for future developments in wheat genomics.
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Affiliation(s)
- G R Lazo
- U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS), Western Regional Research Center, Albany, California 94710-1105, USA
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Aranda S, Yates P, Edwards H, Nash R, Skerman H, McCarthy A. Barriers to effective cancer pain management: a survey of Australian family caregivers. Eur J Cancer Care (Engl) 2004; 13:336-43. [PMID: 15305901 DOI: 10.1111/j.1365-2354.2004.00483.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Cancer pain continues to be an important focus of health research and intervention development. The continuing shift of cancer care to the community increases the family caregiver's role in pain management and highlights the need to understand family experiences and also family barriers to effective pain management. This paper presents the findings of an Australian study exploring attitudinal barriers to effective pain management amongst 75 family caregivers of people with cancer attending an outpatient clinic. Approximately 75% of the caregivers demonstrated concerns or were unsure about addiction, a belief likely to impact on the use of prescribed opioids in the home. Caregivers demonstrated similar levels of concern about side-effects or whether the presence of pain indicated disease progression. These findings support research in other populations and are further evidence of the need to include family caregivers, along with patients, in intervention studies aimed at reducing the impact of these barriers on effective pain management.
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Affiliation(s)
- S Aranda
- Peter MacCallum Cancer Institute, Melbourne, Victoria, Australia.
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Assaad FF, Qiu JL, Youngs H, Ehrhardt D, Zimmerli L, Kalde M, Wanner G, Peck SC, Edwards H, Ramonell K, Somerville CR, Thordal-Christensen H. The PEN1 syntaxin defines a novel cellular compartment upon fungal attack and is required for the timely assembly of papillae. Mol Biol Cell 2004; 15:5118-29. [PMID: 15342780 PMCID: PMC524786 DOI: 10.1091/mbc.e04-02-0140] [Citation(s) in RCA: 308] [Impact Index Per Article: 15.4] [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: 11/11/2022] Open
Abstract
Attack by the host powdery mildew Erysiphe cichoracearum usually results in successful penetration and rapid proliferation of the fungus on Arabidopsis. By contrast, the nonhost barley powdery mildew Blumeria graminis f. sp. hordei (Bgh) typically fails to penetrate Arabidopsis epidermal cells. In both instances the plant secretes cell wall appositions or papillae beneath the penetration peg of the fungus. Genetic screens for mutations that result in increased penetration of Bgh on Arabidopsis have recently identified the PEN1 syntaxin. Here we examine the role of PEN1 and of its closest homologue, SYP122, identified as a syntaxin whose expression is responsive to infection. pen1 syp122 double mutants are both dwarfed and necrotic, suggesting that the two syntaxins have overlapping functions. Although syp122-1 and the cell wall mur mutants have considerably more pronounced primary cell wall defects than pen1 mutants, these have relatively subtle or no effects on penetration resistance. Upon fungal attack, PEN1 appears to be actively recruited to papillae, and there is a 2-h delay in papillae formation in the pen1-1 mutant. We conclude that SYP122 may have a general function in secretion, including a role in cell wall deposition. By contrast, PEN1 appears to have a basal function in secretion and a specialized defense-related function, being required for the polarized secretion events that give rise to papilla formation.
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Affiliation(s)
- Farhah F Assaad
- Department of Plant Biology, Carnegie Institution, Stanford, CA 94305, USA.
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Kettelhut MM, Chiodini PL, Edwards H, Moody A. External quality assessment schemes raise standards: evidence from the UKNEQAS parasitology subschemes. J Clin Pathol 2004; 56:927-32. [PMID: 14645352 PMCID: PMC1770125 DOI: 10.1136/jcp.56.12.927] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND The burden of parasitic disease imported into the temperate zone is increasing, and in the tropics remains very high. Thus, high quality diagnostic parasitology services are needed, but to implement clinical governance a measure of quality of service is required. AIM To examine performance in the United Kingdom National External Quality Assessment Scheme for Parasitology for evidence of improved standards in parasite diagnosis in clinical specimens. METHODS Analysis of performance was made for the period 1986 to 2001, to look for trends in performance scores. RESULTS An overall rise in performance in faecal and blood parasitology schemes was found from 1986 to 2001. This was seen particularly in the identification of ova, cysts, and larvae in the faecal scheme, the detection of Plasmodium ovale and Plasmodium vivax in the blood scheme, and also in the correct identification of non-malarial blood parasites. Despite this improvement, there are still problems. In the faecal scheme, participants still experience difficulty in recognising small protozoan cysts, differentiating vegetable matter from cysts, and detecting ova and cysts when more than one species is present. In the blood scheme, participants have problems in identifying mixed malarial infections, distinguishing between P ovale and P vivax, and estimating the percentage parasitaemia. The reasons underlying these problems have been identified via the educational part of the scheme, and have been dealt with by distributing teaching sheets and undertaking practical sessions. CONCLUSIONS UK NEQAS for Parasitology has helped to raise the standard of diagnostic parasitology in the UK.
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Affiliation(s)
- M M Kettelhut
- UKNEQAS Parasitology, Department of Clinical Parasitology, Hospital for Tropical Diseases, Mortimer Market, Capper Street, London WC1E 6AU, UK
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Abstract
Plants attacked by pathogens rapidly deposit callose, a beta-1,3-glucan, at wound sites. Traditionally, this deposition is thought to reinforce the cell wall and is regarded as a defense response. Surprisingly, here we found that powdery mildew resistant 4 (pmr4), a mutant lacking pathogen-induced callose, became resistant to pathogens, rather than more susceptible. This resistance was due to mutation of a callose synthase, resulting in a loss of the induced callose response. Double-mutant analysis indicated that blocking the salicylic acid (SA) defense signaling pathway was sufficient to restore susceptibility to pmr4 mutants. Thus, callose or callose synthase negatively regulates the SA pathway.
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Affiliation(s)
- Marc T Nishimura
- Department of Plant Biology, Carnegie Institution, Stanford, CA 94305, USA
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Smith S, Edwards H, Courtney M, Finlayson K. Factors influencing student nurses in their choice of a rural clinical placement site. Rural Remote Health 2001; 1:89. [PMID: 15869369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023] Open
Abstract
INTRODUCTION Rural health and government bodies have identified the need for greater numbers of health professionals in rural and remote health care settings. Providing students with the opportunity to experience a rural clinical placement has been suggested as one strategy for future health professionals to gain familiarity with the rural workplace and an awareness of the employment opportunities available in these areas. Although substantial numbers of student nurses have participated in a rural undergraduate clinical placement program at Queensland University of Technology, Australia, since 1996, available places remain unfilled. This study aimed to investigate the factors influencing student nurses in their choice of a rural or metropolitan clinical placement. METHODS This study utilised a descriptive survey design. In the 24-item questionnaire, questions related to demographics, previous experience of a rural lifestyle, previous work experience and issues of importance regarding the clinical placement experience. All final-year Bachelor of Nursing students in the year 2000 (n = 212) were included in the sample, with a 65% response rate for the pre-test (n = 137). Frequency distributions, chi2 analysis (for nominal data) and ANOVA (for interval data) were used to describe differences between the characteristics of students choosing a rural or remote placement and students choosing a metropolitan placement. RESULTS Findings demonstrated that possession of a rural background, previous work experience in a rural community and family, financial and/or employment commitments all influenced students' choice of undertaking a rural clinical placement. CONCLUSION Students who have previously lived and/or worked in a rural area are more likely to choose a rural setting for clinical placements or postgraduate employment. However, the value of rural clinical placements as a method of increasing awareness of employment opportunities in the rural setting is considerable. Family, financial and employment commitments should be considered in the development of recruitment and retention strategies for health professionals to rural areas.
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Affiliation(s)
- S Smith
- School of Nursing, Queensland University of Technology, Brisbane, Queensland, Australia.
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Xu YH, Sattler GL, Edwards H, Pitot HC. Nuclear-labeling index analysis (NLIA), a software package used to perform accurate automation of cell nuclear-labeling index analysis on immunohistochemically stained rat liver samples. Comput Methods Programs Biomed 2000; 63:55-70. [PMID: 10927155 DOI: 10.1016/s0169-2607(00)00075-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The nuclear labeling index (labeled nuclei/100 nuclei) and the apoptotic index (apoptotic cells/100 cells) are important parameters of cell growth and death. Automatic counting of labeled nuclei is desirable since manual counting is tedious, time-consuming, and with a greater potential for inaccuracies. A nuclear-labeling index analysis (NLIA) software package was developed in this laboratory to perform the counting process automatically and accurately. This software package consists of an application program NLIA and a set of macros for obtaining nuclear data that is used in Scion Image. It is designed to work cooperatively with Scion Image, Adobe Photoshop, and Microsoft Office. NLIA has two basic functions: building nuclear data files and analyzing nuclear data. A color image captured from an immunohistochemically stained or autoradiographic sample is loaded into NLIA. Nuclear data can be entered into the program manually, automatically, or in combination. In the manual data entering mode, NLIA acts as an object-counting tool, while in the automatic mode it acts as a data picker: picking up the data generated by Scion Image into memory. A method to enter nuclear data (both labeled nuclei and unlabeled nuclei) in the automatic mode is described. The color image is processed in Adobe Photoshop, where the interested color ranges are selected and separated. These are then analyzed in Scion Image with the help of the macros for obtaining nuclear data. Since the advanced particle analysis function is used, the counting process is automatic and rapid. Data from thousands of nuclei can be obtained within seconds. To ensure the accuracy of the analysis, a nuclear data checking and edit feature is employed in NLIA: results of computer-generated counting can be compared with the original color image by overlaying the plot of counting results onto the original color image. In this way any computer counting mistakes can be easily discovered and corrected by the operator. Corrected nuclear data (including nuclear size, location, shape) are then stored in data files. These data files can be used in NLIA to obtain cell density and nuclear labeling indices. Because criteria for obtaining nuclear data (truncation diameter, shape factor) can be set by the operator in NLIA, nuclear size distribution and shape variation can be analyzed. This method provides a fast and accurate way to determine cell nuclear-labeling indices. Currently, Scion Image is a freeware on the internet, and NLIA software package is available from our lab home page. Methods presented here expand the Scion Image ability to analyze color images by using color separation techniques in a commercial graphic application. The instrumentation required can be relatively inexpensive, and the methods described may be useful in studies of cell kinetics, lesion growth, and tumor therapy.
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Affiliation(s)
- Y H Xu
- Department of Oncology, McArdle Laboratory for Cancer Research, University of Wisconsin, Madison, WI 53706, USA.
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Fleet A, Ashworth R, Kubista H, Edwards H, Bolsover S, Mobbs P, Moss SE. Inhibition of EGF-dependent calcium influx by annexin VI is splice form-specific. Biochem Biophys Res Commun 1999; 260:540-6. [PMID: 10403803 DOI: 10.1006/bbrc.1999.0915] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [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
Annexin VI is a widely expressed calcium- and phospholipid-binding protein that lacks a clear physiological role. We now report that A431 cells expressing annexin VI are defective in their ability to sustain elevated levels of cytosolic Ca(2+) following stimulation with EGF. Other aspects of EGF receptor signaling, such as protein tyrosine phosphorylation and induction of c-fos are normal in these cells. However, EGF-mediated membrane hyperpolarization is attenuated and Ca(2+) entry abolished in cells expressing annexin VI. This effect of annexin VI was only observed for the larger of the two annexin VI splice forms, the smaller splice variant had no discernable effect on either cellular phenotype or growth rate. Inhibition of Ca(2+) influx was specific for the EGF-induced pathway; capacitative Ca(2+) influx initiated by emptying of intracellular stores was unaffected. These results provide the first evidence that the two splice forms of annexin VI have different functions.
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Affiliation(s)
- A Fleet
- Department of Physiology, University College London, Gower Street, London, WC1E 6BT, United Kingdom
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Abstract
Effective communication between older people and their family carers is necessary for providing appropriate and quality care. However, family carers and carereceivers may avoid discussing issues of concern and this may adversely affect the quality of the caring relationship. This study investigated the content of, and avoidance of issues in communication between 84 spousal and filial carers and carereceivers. The study findings indicate that family carers and carereceivers do avoid discussing issues of concern. Nurses working with families are well placed to promote more effective communication in the caring context to augment more satisfying caring relationships for both carers and carereceivers.
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Affiliation(s)
- H Edwards
- Queensland University of Technology, School of Nursing
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Abstract
Pain of moderate to severe intensity continues to be an important problem for many hospitalized patients. Nurses spend more time with patients than any other health professional group and have a key role to play in the management of patients' pain. This paper reports the findings from a series of focus group interviews which were undertaken to explore nurses' perceptions regarding pain and the administration of narcotic analgesia. Themes identified from participants' comments related to (1) the pivotal role of nurses in pain management; (2) nursing assessment and pain management decisions (3) individual factors influencing nurses' pain management decisions and (4) the influence of others on nurses' pain management decisions.
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Affiliation(s)
- R Nash
- School of Nursing, Queensland University of Technology, Kelvin Grove, Australia.
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