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Cooper M, Robinson H, Hughes L, McCabe K, Simpson J, Cameron S. Developing an accessible audiovisual animation to provide information about postpartum contraception. BMJ Sex Reprod Health 2024:bmjsrh-2023-202050. [PMID: 38589205 DOI: 10.1136/bmjsrh-2023-202050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 03/15/2024] [Indexed: 04/10/2024]
Affiliation(s)
- Michelle Cooper
- Chalmers Sexual Health Centre, NHS Lothian, Edinburgh, UK
- Centre for Reproductive Health, Institute of Regeneration & Repair, University of Edinburgh, Edinburgh, UK
| | | | | | - Karen McCabe
- Centre for Reproductive Health, Institute of Regeneration & Repair, University of Edinburgh, Edinburgh, UK
| | - Janine Simpson
- Sexual and Reproductive Health, Sandyford, NHS Greater Glasgow and Clyde, Glasgow, UK
- School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Sharon Cameron
- Chalmers Sexual Health Centre, NHS Lothian, Edinburgh, UK
- Centre for Reproductive Health, Institute of Regeneration & Repair, University of Edinburgh, Edinburgh, UK
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Hughes L, Swain PM, Lai T, McEwen JA. It's time to regulate - The importance of accurate surgical-grade tourniquet autoregulation in blood flow restriction exercise applications. Phys Ther Sport 2024; 67:41-46. [PMID: 38508000 DOI: 10.1016/j.ptsp.2024.02.001] [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] [Received: 11/10/2023] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 03/22/2024]
Abstract
OBJECTIVE Evaluate the efficacy of five common blood flow restriction (BFR) systems to accurately maintain and autoregulate BFR pressure in the tourniquet cuff near target pressure throughout exercise. DESIGN Randomised crossover design. SETTING Laboratory. PARTICIPANTS 15 healthy individuals. OUTCOME MEASURES 1) Percentage of total BFR time that surgical-grade tourniquet autoregulation, defined as automatic and rapid self-regulation of cuff pressure to within ±15 mmHg of initial target pressure within 1 s in the presence of transient pressure changes associated with exercise, was provided; 2) pressure change in the BFR cuff throughout exercise, by comparing the initial target pressure to the measured pressure at completion of BFR exercise. RESULTS One BFR system could provide surgical-grade tourniquet autoregulation for the whole duration (100 ± 0%) of the BFR exercise in all subjects. In two of the five BFR systems evaluated, measured cuff pressure at the end of exercise was not different (p < 0.05) to the initial target pressure. CONCLUSIONS Surgical-grade tourniquet autoregulation is important to consistently and reliably apply a targeted BFR pressure stimulus. This may allow BFR methodology and protocols to be accurately implemented and controlled so that the results can be more meaningfully compared, leading to the potential optimization of applications.
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Affiliation(s)
- L Hughes
- Department of Sport, Exercise & Rehabilitation, Northumbria University, NE18ST, UK.
| | - P M Swain
- Department of Sport, Exercise & Rehabilitation, Northumbria University, NE18ST, UK
| | - T Lai
- Western Clinical Engineering Ltd., Vancouver British Columbia, Canada
| | - J A McEwen
- Western Clinical Engineering Ltd., Vancouver British Columbia, Canada; School of Biomedical Engineering and Departments of Orthopaedics and Electrical and Computer Engineering, University of British Columbia, Vancouver British Columbia Canada
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Digby R, Hopper I, Hughes L, McCaskie D, Tuck M, Fallon K, Hunter P, Bucknall T. Exploring staff perspectives on caring for isolated hospitalised patients during the COVID-19 pandemic: a qualitative study. BMC Health Serv Res 2023; 23:208. [PMID: 36859246 PMCID: PMC9977084 DOI: 10.1186/s12913-022-09000-3] [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] [Received: 06/09/2022] [Accepted: 12/21/2022] [Indexed: 03/03/2023] Open
Abstract
BACKGROUND Strict isolation of COVID-19 patients to prevent cross infection may inadvertently cause serious adverse outcomes including psychological harm, limitations to care, increased incidence of delirium, deconditioning and reduced quality of life. Previous research exploring the staff perspective of the effect of isolation on patients is limited. The aim of this study is to understand staff perceptions and interpretations of their experiences of the care and treatment of isolated patients and the impact of isolation on patients, families, and staff. METHOD This qualitative, exploratory study is set in a major metropolitan, quaternary hospital in Melbourne, Australia. Data was collected in focus groups with clinical and non-clinical staff and analysed using content analysis. The hospital ethics committee granted approval. Each participant gave informed verbal consent. RESULTS Participants included 58 nursing, medical, allied health, and non-clinical staff. Six main themes were identified: 1) Communication challenges during COVID-19; 2) Impact of isolation on family; 3) Challenges to patients' health and safety; 4) Impact on staff; 5) Challenging standards of care; 6) Contextual influences: policy, decision-makers and the environment. CONCLUSION Isolating patients and restricting visitors resulted in good pandemic management, but staff perceived it came at considerable cost to staff and consumers. Innovative communication technology may facilitate improved connection between all parties. Mental health support is needed for patients, families, and staff. Further research using a co-design model with input from patients, families and staff is recommended to determine appropriate interventions to improve care. Preventing the spread of infection is essential for good pandemic management, but the cost to consumers and staff must be mitigated. Preparation for future pandemics must consider workforce preparedness, adapted models of care and workflow.
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Affiliation(s)
- Robin Digby
- Alfred Health, PO Box 315, Prahran, Melbourne, VIC, 3181, Australia.
| | - Ingrid Hopper
- grid.267362.40000 0004 0432 5259Alfred Health, PO Box 315, Prahran, Melbourne, VIC 3181 Australia
| | - Leanne Hughes
- grid.267362.40000 0004 0432 5259Alfred Health, PO Box 315, Prahran, Melbourne, VIC 3181 Australia
| | - Doug McCaskie
- grid.267362.40000 0004 0432 5259Alfred Health, PO Box 315, Prahran, Melbourne, VIC 3181 Australia
| | - Michelle Tuck
- grid.267362.40000 0004 0432 5259Alfred Health, PO Box 315, Prahran, Melbourne, VIC 3181 Australia
| | - Kethly Fallon
- grid.267362.40000 0004 0432 5259Alfred Health, PO Box 315, Prahran, Melbourne, VIC 3181 Australia
| | - Peter Hunter
- grid.267362.40000 0004 0432 5259Alfred Health, PO Box 315, Prahran, Melbourne, VIC 3181 Australia
| | - Tracey Bucknall
- grid.267362.40000 0004 0432 5259Alfred Health, PO Box 315, Prahran, Melbourne, VIC 3181 Australia ,grid.1021.20000 0001 0526 7079Deakin University, Faculty of Health, School of Nursing and Midwifery, Centre for Quality and Patient Safety Research – Alfred Health Partnership, Melbourne, Victoria Australia
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Dupe B, Mitton S, Hughes L, Gross E, Wong C, Martina K, Townsend C, Savoie J, Parzanese M, Prospero LD. Investing in our human capital: Sharing the experience of implementing a retention strategy at a large academic hospital from a leadership lens. J Med Imaging Radiat Sci 2022; 53:S100-S106. [PMID: 36114126 PMCID: PMC9472598 DOI: 10.1016/j.jmir.2022.08.011] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 08/15/2022] [Accepted: 08/23/2022] [Indexed: 12/24/2022]
Abstract
The impact of the COVID-19 pandemic on healthcare providers is well documented and has resulted in significant pressures from a health human resources perspective with many point-of-care providers taking extended leave or moreover, leaving the healthcare sector altogether. As part of a larger Health Human Resources (HHR) strategy at Sunnybrook Health Sciences Centre (Sunnybrook) in Toronto, Canada, a time-limited interprofessional working group titled Supporting Team Sunnybrook (STS) was created. The working group was created to focus on staff retention to respond to ongoing concerns by leaders with regard to staff leaving the organization at an increased rate as documented by our organization's decision support team. Anecdotally, many staff cited their decision to leave the organization as a consequence of the pandemic. As no staff retention committee had been formally created at our organization, STS was established to engage all staff members while addressing and resolving current feedback, concerns, suggestions and issues. The objective of our working group was to review published literature, establish themes from this review, and align these themes to priority themes brought forward by staff through a number of data capture activities. Data capture activities included reviewing existing survey data, new survey data and meetings with staff members. Analysis of the data resulted in the identification of five key consensus areas (priority themes): Staff recognition, wellbeing, grow at Sunnybrook, leaderful leaders, and communication. Our team created five corresponding working groups with the aim to create short- and long-term goals, as well as time sensitive and sustainable operational activities that would contribute to improved staff retention at our organization. Outcomes from our work provided two key learnings to leaders on their ongoing work to retain staff which were the importance of: (1) engagement across all roles, professions including non-clinical team members and support staff and (2) broad communication on the outcomes of our working group to demonstrate that that their feedback was taken seriously and acted upon.
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Affiliation(s)
- Breanna Dupe
- Sunnybrook Health Sciences Centre, Toronto, Canada; Western University, London, Canada
| | - Sydney Mitton
- Sunnybrook Health Sciences Centre, Toronto, Canada; University of Waterloo, Waterloo, Canada
| | | | - Erin Gross
- Sunnybrook Health Sciences Centre, Toronto, Canada
| | - Claudia Wong
- Sunnybrook Health Sciences Centre, Toronto, Canada
| | - Karelin Martina
- Sunnybrook Health Sciences Centre, Toronto, Canada; Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Canada
| | | | | | - Maria Parzanese
- Sunnybrook Health Sciences Centre, Toronto, Canada; Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Canada
| | - Lisa Di Prospero
- Sunnybrook Health Sciences Centre, Toronto, Canada; Department of Radiation Oncology, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada.
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Paton B, Hughes L. Strength training with blood flow restriction in anterior cruciate ligament rehabilitation. Physiotherapy 2022. [DOI: 10.1016/j.physio.2021.12.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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McLaney E, Morassaei S, Hughes L, Davies R, Campbell M, Di Prospero L. A framework for interprofessional team collaboration in a hospital setting: Advancing team competencies and behaviours. Healthc Manage Forum 2022; 35:112-117. [PMID: 35057649 PMCID: PMC8873279 DOI: 10.1177/08404704211063584] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Healthcare teams that practice collaboratively enhance the delivery of person-centred care and improve patient and systems outcomes. Many organizations have adopted existing interprofessional frameworks that define the competencies of individual health professionals that are required to meet practice standards and advance interprofessional goals. However, to support the collective efforts of team members to deliver optimal care within complex hospital settings, healthcare organizations may benefit from adopting team-based competencies for interprofessional collaboration. The Sunnybrook framework for interprofessional team collaboration was intentionally created as a set of collective team competencies. The framework was developed using a comprehensive literature search and consensus building by a multi-stakeholder working group and supported by a broad consultation process that included patient representation, organizational development and leadership, and human resources. The six core competencies are actionable and include associated team behaviours that can be easily referenced by teams and widely implemented across the hospital.
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Affiliation(s)
- Elizabeth McLaney
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Centre for Interprofessional Education, University of Toronto, Toronto, Ontario, Canada
| | - Sara Morassaei
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Faculty of Health Sciences, Queen’s University, Kingston, Ontario, Canada
| | - Leanne Hughes
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Robyn Davies
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- Unity Health Toronto, Toronto, Ontario, Canada
| | - Mikki Campbell
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Lisa Di Prospero
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
- Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
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Langran C, Mantzourani E, Hughes L, Hall K, Willis S. “I'm at breaking point”; Exploring pharmacists' resilience, coping and burnout during the COVID-19 pandemic. Exploratory Research in Clinical and Social Pharmacy 2022; 5:100104. [PMID: 35072149 PMCID: PMC8760739 DOI: 10.1016/j.rcsop.2022.100104] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 12/15/2021] [Accepted: 01/11/2022] [Indexed: 11/19/2022] Open
Abstract
Background There is a lack of evidence on how the multimodal dynamic process of resilience has impacted personal adaptation of frontline healthcare professionals, working under extreme pressure during the COVID-19 global pandemic. Objectives To explore resilience, burnout and wellbeing for UK pharmacists in patient-facing roles, including individual and organisational factors that align to the ABC-X theoretical model of the dynamic process of resilience. Methods A non-experimental pragmatist research design was adopted, with a cross-sectional online survey distributed via social media and professional networks between June and July 2020. Quantitative data aligned to a positivist research paradigm was collected using validated scores, to statistically analyse wellbeing, burnout and resilience. Qualitative textual data, consistent with an interpretivist research paradigm, were analysed following an inductive thematic approach. Results A total of 199 surveys from pharmacists working within community, hospital and GP sectors were analysed. Wellbeing scores were strongly correlated to resilience scores. Wellbeing and resilience scores were both inversely correlated with burnout scores. Two-thirds of participants were classified as high-risk within the burnout scales. Key stressors were highlighted by participants, who described how individual resources and perceptions shaped their experience, which overall contributed to their burnout. Organisations that supported pharmacists embraced change and quickly adopted new ways of working, such as teleconsultations, flexible and remote working, redesign of workflow, alongside clear guidance. However, there was also reported frustration at lack of, slow or conflicting guidance from employers. Conclusions This study adds to the growing evidence base for how individuals are affected by adverse events in a dynamic environment, alongside the role that employers can play in supporting individual and organisational resilience. It provides an opportunity to learn from pharmacists' responses to the COVID-19 pandemic, and a call to action for healthcare organisations to rebuild and invest resources into sustained support for staff wellbeing.
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Affiliation(s)
- C. Langran
- University of Reading, UK
- Corresponding author.
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8
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Hughes L, O'Flaherty D, O'Byrne JJ, Donnelly J, O'Shaughnessy F, Doherty A. A case report of anaesthetic considerations for maple syrup urine disease during pregnancy and delivery. Int J Obstet Anesth 2021; 48:103208. [PMID: 34391024 DOI: 10.1016/j.ijoa.2021.103208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/01/2021] [Accepted: 07/19/2021] [Indexed: 10/20/2022]
Affiliation(s)
- L Hughes
- Department of Anaesthesia, Rotunda Hospital, Dublin, Ireland.
| | - D O'Flaherty
- Department of Anaesthesia, Rotunda Hospital, Dublin, Ireland
| | - J J O'Byrne
- The National Centre for Inherited Metabolic Disorders, Mater Misericordiae University Hospital, Dublin, Ireland
| | - J Donnelly
- Department of Maternal Fetal Medicine, Rotunda Hospital, Dublin, Ireland
| | | | - A Doherty
- Department of Anaesthesia, Rotunda Hospital, Dublin, Ireland
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Abstract
PURPOSE to examine the relationship between religiosity, social support, trauma, quality of life and experienced stigma of mental illness amongst a population diagnosed with mental ill-health. METHODS A cross-sectional survey of day service users in Northern Ireland (n = 295) covering a range of issues including religiosity, social support, quality of life and prior experience of trauma. Stigma was measured using a recognised stigma scale. We used multinomial logistic regression to examine risk factors associated with experienced stigma. RESULTS Univariate analysis showed significant associations between stigma and age, number of friends, social support, quality of life and prior experience of trauma. Age, quality of life, and trauma remained independently associated with stigma in a multivariate logistic regression model (x2(12) = 98.40, p < 0.001). CONCLUSION Younger people, those with less social support, prior experience of trauma and with poorer quality of life are at increased risk of experiencing stigma related to their diagnosis of mental illness. The findings provide further understanding of stigma and are useful for those overseeing programmes to improve access to mental health treatment.
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Affiliation(s)
- C. Nugent
- Bamford Centre for Mental Health and Wellbeing; School of Psychology, Ulster University, Cromore Road, Coleraine, BT52 1SA Northern Ireland
| | - M. Rosato
- Bamford Centre for Mental Health and Wellbeing; School of Psychology, Ulster University, Cromore Road, Coleraine, BT52 1SA Northern Ireland
| | - L. Hughes
- Bamford Centre for Mental Health and Wellbeing; School of Psychology, Ulster University, Cromore Road, Coleraine, BT52 1SA Northern Ireland
| | - G. Leavey
- Bamford Centre for Mental Health and Wellbeing; School of Psychology, Ulster University, Cromore Road, Coleraine, BT52 1SA Northern Ireland
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Hoyle A, Iqbal K, Henry J, Hughes L, Johnson D. 649 COVID BOAST In Practice: Our Experience Implementing BOA Recommendations During the UK Coronavirus Pandemic Peak. Br J Surg 2021. [PMCID: PMC8135759 DOI: 10.1093/bjs/znab134.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Background
In anticipation of the UK coronavirus pandemic peak, BOA published new pandemic-specific guidance (“COVID BOAST”) in April 2020. We describe our experience implementing this restructured T&O service in a busy DGH setting during the pandemic peak.
Method
A rapid retrospective audit was conducted of all patients presenting to our T&O service in April 2020, with particular emphasis compliance with COVID BOAST.
Results
Our service conducted 511 outpatient reviews, and 95 operative procedures. 94% of outpatients were treated non-operatively. We provided telephone appointments to 12.8% of follow-up patients, and 39% of new patients. 82% of patients were treated with removable casts/splints/boots. 23% of patients were discharged direct from VFC or after one face-to-face fracture clinic review. Residual deformity was consciously accepted in 13% of patients. Theatre throughput fell significantly due to pandemic precautions however, femoral neck fracture volumes remained constant.
Conclusions
We demonstrate broad compliance with COVID BOAST guidance. The majority of patients were treated non-operatively, including conscious acceptance of residual deformity. Our pre-existing VFC allowed us to provide a significant number of telephone consultations, although despite the practice shift towards removable splintage, face-to-face consultations were required for clinical and/or radiological assessment. The impact of increased conservative management on patients’ long-term outcomes needs further evaluation.
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Affiliation(s)
- A Hoyle
- Stepping Hill Hospital, Stockport, United Kingdom
| | - K Iqbal
- Stepping Hill Hospital, Stockport, United Kingdom
| | - J Henry
- Stepping Hill Hospital, Stockport, United Kingdom
| | - L Hughes
- Stepping Hill Hospital, Stockport, United Kingdom
| | - D Johnson
- Stepping Hill Hospital, Stockport, United Kingdom
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Langran C, Willis S, Hughes L, Mantzourani E, Hall K. Intra and Inter-professional working: how have pharmacists’ working practices changed during the COVID-19 pandemic? International Journal of Pharmacy Practice 2021. [PMCID: PMC8083675 DOI: 10.1093/ijpp/riab015.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Introduction COVID-19 has acted as a catalyst for radical changes in the working practices of pharmacists. While there is emerging evidence of adaptability mitigating burnout amongst pharmacists in other countries (1), what has yet to be established is the extent to which the well-being and resilience of pharmacists in the UK may be supported through changes in intra and inter-professional working practices. Aim As part of a wider project aiming to explore the impact of COVID-19 on pharmacists’ wellbeing and resilience, in this abstract we present findings exploring the impact on working relationships within pharmacy and multidisciplinary teams. Methods An online questionnaire containing validated measures of wellbeing and resilience and free-text open questions exploring the impact of COVID-19 on working practices was piloted on five practising pharmacists. This questionnaire was subsequently distributed via social media and professional networks in June 2020. Convenience sampling was used whereby any UK-registered pharmacist in a patient-facing role was eligible to take part. Inductive thematic analysis of the free text responses was conducted. This abstract presents one key theme; intra and inter-professional relationships. Results A total of 202 questionnaires were completed (Table 1), with 192 participants entering free-text responses. Participants reported pharmacy teams becoming closer, supporting one another and working more cohesively. Work redesign and staff upskilling were given as positive examples of practice change in response to the pandemic. Reported challenges included managing conflict within a team due to heightened stress, sustaining staff morale, exhaustion, and prioritising others to the detriment of their own wellbeing: “I have no time for myself as I'm too busy keeping the day to day working and supporting my team emotionally. I'm emotionally exhausted and at home I withdraw and ignore the outside world as I'm at breaking point but don’t want my colleagues to see this.” Inter-professional relationships sometimes improved as a result of more effective communication, extended networking and pharmacists feeling valued and recognised as integral to multidisciplinary working. Supportive inter-professional working was described as a “Great sense of comradery - we're in this together”. Yet for others, inter-professional working proved challenging, with non-engagement of clinicians, frequently changing guidance from senior management, and restricted staff interaction due to remote or shift working. Conclusions Whilst for some the pandemic facilitated improved inter- and intra- professional interactions, for others this was viewed as challenges of daily practice. Due to recruiting via social media, this study is limited by the response numbers and is therefore not representative of all UK registered pharmacists. However, a key strength is that pharmacists from all sectors of practice responded, in comparison to other studies which have focused solely on community pharmacists. Results from this study can be used to support sustainable change in fostering collaborative working within pharmacy and multi-professional healthcare teams. References 1. Austin, Z., & Gregory, P. (2020). Resilience in the time of pandemic: The experience of community pharmacists in Ontario during COVID-19. Research in Social and Administrative Pharmacy.
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Affiliation(s)
| | | | | | | | - K Hall
- University of Reading, UK
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12
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Boulogne C, Gillet C, Hughes L, LE Bars R, Canette A, Hawes CR, Satiat-Jeunemaitre B. Functional organisation of the endomembrane network in the digestive gland of the Venus flytrap: revisiting an old story with a new microscopy toolbox. J Microsc 2020; 280:86-103. [PMID: 32844427 DOI: 10.1111/jmi.12957] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/22/2020] [Revised: 08/19/2020] [Accepted: 08/23/2020] [Indexed: 01/10/2023]
Abstract
Up-to-date imaging approaches were used to address the spatiotemporal organisation of the endomembrane system in secretory cells of Dionaea muscipula. Different 'slice and view' methodologies were performed on resin-embedded samples to finally achieve a 3D reconstruction of the cell architecture, using ultrastructural tomography, array tomography, serial block face-scanning electron microscopy (SBF-SEM), correlation, and volume rendering at the light microscopy level. Observations of cryo-fixed samples by high-pressure freezing revealed changes of the endomembrane system that occur after trap activation and prey digestion. They provide evidence for an original strategy that adapts the secretory machinery to a specific and unique case of stimulated exocytosis in plant cells. A first secretion peak is part of a rapid response to deliver digestive fluids to the cell surface, which delivers the needed stock of digestive materials 'on site'. The second peak of activity could then be associated with the reconstruction of the Golgi apparatus (GA), endoplasmic reticulum (ER) and vacuolar machinery, in order to prepare for a subsequent round of prey capture. Tubular continuum between ER and Golgi stacks observed on ZIO-impregnated tissues may correspond to an efficient transfer mechanism for lipids and/or proteins, especially for use in rapidly resetting the molecular GA machinery. The occurrence of one vacuolar continuum may permit continuous adjustment of cell homeostasy. The subcellular features of the secretory cells of Dionaea muscipula outline key innovations in the organisation of plant cell compartmentalisation that are used to cope with specific cell needs such as the full use of the GA as a protein factory, and the ability to create protein reservoirs in the periplasmic space. Shape-derived forces of the pleiomorphic vacuole may act as signals to accompany the sorting and entering flows of the cell.
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Affiliation(s)
- C Boulogne
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - C Gillet
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - L Hughes
- Oxford Brookes University, Oxford UK, England.,Oxford Instruments NanoAnalysis, High Wycombe, Bucks, UK
| | - R LE Bars
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - A Canette
- CNRS, Institut de Biologie Paris-Seine (IBPS), Sorbonne Université, Paris, France
| | - C R Hawes
- Oxford Brookes University, Oxford UK, England
| | - B Satiat-Jeunemaitre
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
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Pullan J, Sheikh G, Hughes L. An audit of audits - A never ending loop. J Healthc Qual Res 2020; 35:265-267. [PMID: 32505749 DOI: 10.1016/j.jhqr.2020.01.008] [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] [Received: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 06/11/2023]
Affiliation(s)
- J Pullan
- Trauma and Orthopaedics, Stepping Hill Hospital, UK.
| | - G Sheikh
- Trauma and Orthopaedics, Wythenshawe Hospital, UK
| | - L Hughes
- Trauma and Orthopaedics, Wythenshawe Hospital, UK
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Bingham G, Fossum M, Hughes L, Digby R, Bucknall T. The pre-Medical Emergency Team response: Nurses' decision-making escalating deterioration to treating teams using urgent review criteria. J Adv Nurs 2020. [PMID: 32432363 DOI: 10.1111/jan.14433] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 10/20/2019] [Revised: 03/24/2020] [Accepted: 05/04/2020] [Indexed: 11/29/2022]
Abstract
AIM To describe nurses' decision-making, experiences and perceptions of escalating deteriorating patients to the treating medical team using urgent clinical review criteria. DESIGN A qualitative design comprising individual in-depth interviews with nurses from a major Australian metropolitan tertiary teaching hospital. METHOD A purposive sample of 30 Registered Nurses from nine surgical and medical wards were interviewed in April 2018 using semi-structured interviews. An inductive thematic analysis was conducted. RESULTS Identified themes included: detecting the deterioration; countering the problem; getting a response; and challenges faced in the process of escalation. Nurses reported an important awareness, sense of responsibility, and critical thinking to ensure the safe management and escalation of deteriorating patients. However, barriers to escalation necessitated individual workarounds and organizational structures to mitigate patient risk. CONCLUSION This study supports the importance of communication between clinical teams and recognizes that it is crucial to enable a fail-safe experience for patients and families. Recognition of disciplinary contributions to patients' goals of care is required to better understand and address the prevalence of deteriorating patients. Our study is among the first to explore the actual experience of nurses who articulate balancing uncertainty and managing complex team dynamics on wards for patients experiencing deteriorating health status. The information may assist in determining team training strategies and structures to facilitate patient management during deterioration. IMPACT This is among the first study to investigate barriers influencing decision-making of RNs prior to escalation using qualitative methods. This study provides a foundation to inform and develop policies and strategies aimed at ensuring escalation occurs for deteriorating patients.
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Affiliation(s)
| | - Mariann Fossum
- Alfred Health, Melbourne, Vic., Australia.,Centre for Caring Research - Southern Norway, Faculty of Health and Sport Sciences, University of Agder, Grimstad, Norway
| | | | - Robin Digby
- Centre for Quality and Patient Safety Research, School of Nursing and Midwifery, Faculty of Health, Deakin University, Geelong, Vic., Australia
| | - Tracey Bucknall
- Alfred Health, Melbourne, Vic., Australia.,Centre for Quality and Patient Safety Research, School of Nursing and Midwifery, Faculty of Health, Deakin University, Geelong, Vic., Australia
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Hayward L, Moses R, Hughes L, Forster E, Saul N. Tracheostomy weaning in community and the importance of the Multi-Disciplinary Team (MDT) to optimise outcomes - a case report. Physiotherapy 2020. [DOI: 10.1016/j.physio.2020.03.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Digby R, Bolster D, Hughes L, Perta A, Bucknall TK. Examining subacute nurses' roles in a changing healthcare context. J Clin Nurs 2020; 29:2260-2274. [PMID: 32145040 DOI: 10.1111/jocn.15235] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/06/2019] [Revised: 01/23/2020] [Accepted: 02/07/2020] [Indexed: 11/29/2022]
Abstract
AIMS AND OBJECTIVES To explore and describe nurses' role in the rehabilitation and care of patients in one subacute care facility in Melbourne, Australia. BACKGROUND The role of nurses in subacute care and within the rehabilitation team is evolving and remains unclear. DESIGN Mixed methods. METHODS Fourteen nurses from seven rehabilitation and geriatric evaluation and management wards in one subacute facility in Melbourne, Australia, were observed in practice for two hours and then interviewed. Activities were recorded electronically. Interviews were audio-recorded and transcribed. Data were analysed using content analysis. The study complied with the Consolidated Criteria for Reporting Qualitative Research (COREQ). RESULTS Three main themes are as follows: (a) Nurses as rehabilitators; (b) Teamwork in rehabilitation; and (c) The changing context of subacute care. Nurses prioritised patient personal and clinical care above other responsibilities. They were largely excluded from team decision-making because clinical responsibilities precluded them from attending team meetings. Unsuitable buildings, increased patient acuity and time constraints were further challenges. CONCLUSIONS Nurses have a multifaceted role in patient rehabilitation that is poorly understood. An evaluation of the nursing role within the interdisciplinary team, skills and processes of care may increase understanding, and improve communication and relationships between disciplines potentially benefiting patients. Role clarity and differentiation in nursing skills are required within the nursing workforce. RELEVANCE TO CLINICAL PRACTICE Nurses have a unique role in both clinical care and rehabilitation of patients, and as part of the interdisciplinary team. Respectful professional relationships need fostering within the interdisciplinary team to achieve optimal patient outcomes. The way that team meetings and decision-making occur in the subacute wards requires adjustment to ensure that the valuable contribution of nurses, both to the interdisciplinary team and to the rehabilitation of patients, is used and acknowledged to improve patient care.
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Affiliation(s)
- Robin Digby
- School of Nursing and Midwifery, Faculty of Health, Deakin University Locked Bag, Geelong, Victoria, Australia.,Centre for Quality and Patient Safety Alfred Health Partnership, Alfred Health, Melbourne, Victoria, Australia
| | | | | | - Andrew Perta
- Caulfield Hospital, Caulfield, Victoria, Australia
| | - Tracey K Bucknall
- School of Nursing and Midwifery, Faculty of Health, Deakin University Locked Bag, Geelong, Victoria, Australia.,Centre for Quality and Patient Safety Alfred Health Partnership, Alfred Health, Melbourne, Victoria, Australia
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Hughes L, Rudler D, Perks K, Richman T, Kusnetsova I, Ermer J, Shearwood A, Viola H, Hool L, Siira S, Rackham O, Filipovska A. Misregulation of Mitochondrial Protein Synthesis Leads to Cardiomyopathy. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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18
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McLaney E, Cooper N, Hughes L, Lowe M, Peranson J, Di Prospero L. Widening the Lens on Needs Assessment: Identifying Profession-Specific and Interprofessional Learning Needs Across Professions in an Academic Health Sciences Institution. J Allied Health 2019; 48:e87-e93. [PMID: 31487367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 07/17/2019] [Indexed: 06/10/2023]
Abstract
Traditionally, education planning for the health professions is conducted in a reactive manner, with profession-specific learning opportunities being organized in response to educational issues arising or based upon speaker availability. Moreover, limited information exists to guide organizations on systematic approaches to planning and implementing large-scale interprofessional learning programs, despite clear evidence for benefits of team-based learning in the workplace. Our organizational approach to the learning needs assessment process was in need of updating to enhance pedagogical rigor and to proactively inform ongoing education planning with respect to both profession-specific and interprofessional learning needs. To address this, a novel mixed methods approach integrated within a quality improvement framework was developed to elicit participant engagement. The approach included use of a questionnaire, focus groups, and key stakeholder interviews. Ranking of learning priorities of respondents indicated that highest priority was placed on learning needs related to profession-specific clinical and technical skills. A number of distinct inter¬professional learning needs were identified through this novel needs assessment process, including a selection of clinical topics that were deemed to be well-suited for interprofessional learning forums. Utilization of a multi-method interprofessional approach to needs assessment thus enabled elicitation of more comprehensive results than could have been achieved through a traditional profession-specific needs assessment, and hence changing our ongoing approach to education planning at our organization.
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Affiliation(s)
| | | | | | | | | | - Lisa Di Prospero
- Practice-Based Research and Innovation, Sunnybrook Health Sciences Centre, 2075 Bayview Ave., Office D403b, Toronto, ON M4N 3M5, Canada. Tel 416 480 6100 x89513, fax 416 480 5207.
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Popat S, Januszewski A, Hughes L, O'Brien M, Ahmad T, Lewanski C, Dernedde U, Jankowska P, Mulatero C, Shah R, Hicks J, Geldart T, Cominos M, Gray G, Spicer J, Bell K, Roitt S, Howarth K, Cinelli M, Green E, Morris C, Ngai Y, Hackshaw A. P1.13-17 Multicentre Phase II Trial of First-Line Afatinib in Patients with Suspected/Confirmed EGFR Mutant NSCLC: ctDNA and Long-Term Efficacy. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Blom J, Tan L, Hughes L, Tekpetey F, Abu Rafea B. Serum estradiol level on the fifth day of ovarian stimulation in a GnRH antagonist protocol can predict pregnancy outcomes in IVF/ICSI. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.618] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Hughes L, Rosenblatt B, Gissane C, Paton B, Patterson SD. Interface pressure, perceptual, and mean arterial pressure responses to different blood flow restriction systems. Scand J Med Sci Sports 2018; 28:1757-1765. [DOI: 10.1111/sms.13092] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2018] [Indexed: 12/16/2022]
Affiliation(s)
- L. Hughes
- School of Sport, Health and Applied Science; St Mary's University; London UK
- Institute of Sport, Exercise and Health; London UK
| | | | - C. Gissane
- School of Sport, Health and Applied Science; St Mary's University; London UK
| | - B. Paton
- Institute of Sport, Exercise and Health; London UK
| | - S. D. Patterson
- School of Sport, Health and Applied Science; St Mary's University; London UK
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22
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Gasparini M, Bombardieri E, Tondini C, Maffioli L, Hughes L, Burraggi GL, Goldenberg DM. Clinical Utility of Radioimmunoscintigraphy of Non-Hodgkin's Lymphoma with Radiolabelled LL2 Monoclonal Antibody., Lymphoscan™: Preliminary Results. Tumori 2018; 81:173-8. [PMID: 7571023 DOI: 10.1177/030089169508100304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Aims and Background Adequate clinical staging of non-Hodgkin's lymphoma patients is essential because only localized disease can be treated satisfactorily. Many imaging procedures are necessary to stage the disease accurately. The objective of this study was to evaluate the efficacy of an anti-lymphoma antibody in the Fab’ fragment form, labelled with 99mTc, to detect malignant lesions. Methods Radioimmunodetection (RAID) with 99mTc-labelled B-cell lymphoma monoclonal antibody IMMU-LL2-Fab’ (LymphoSCAN™; Immunomedics, Morris Plain, NJ, USA) was investigated in 10 patients (5 females and 5 males; age range, 20-72 years) with histologically proved non-Hodgkin's lymphoma. Of the 10 lymphomas, 7 were intermediate grade and 3 were low grade. Whole body images with multiple planar views were obtained at 30 min, 4-6 and 24 h after i.v. injection of 1 mg LL2-Fab’ labelled with 740-925 MBq of 99mTc. SPET of the chest or abdomen was performed in all patients 5-8 h after the immunoreagent injection. Results No adverse reactions were observed in any patient after Mab infusion, and no appreciable changes were seen in the blood counts, renal or liver function tests. A total of 18 of 21 (85.7%) lymphoma lesions were detected by RAID. All the tumor localizations were confirmed by clinical examination and with other imaging techniques, such as CT scan, MRI or gallium scan. In this series of patients no false-positive results were noted. As regards the biodistribution of the immunoreagent, no appreciable bone marrow activity was seen; splenic targeting was demonstrated in all patients; the tumor-to-non-tumor ratios ranged from 1.2 to 2.8 ad measured by the ROI technique; no difference in uptake was noted for different tumor grades. The images obtained 24 h after injection did not reveal new lesions, but areas of doubtful uptake were seen as positive focal areas in the delayed scan. Conclusions LymphoSCAN™ seems to be useful for detection, staging and follow-up of non-Hodgkin's lymphoma patients.
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Affiliation(s)
- M Gasparini
- Nuclear Medicine Department, National Cancer Institute, Milan, Italy
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23
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Hughes L, Perks K, Rossetti G, Ermer J, Viola H, Hool L, Filipovska A. Loss of Mitochondrial RNA Binding Protein PTCD1 Leads to Cardiomyopathy. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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24
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Sclafani F, Gollins S, Cunningham D, Hulkki Wilson S, Kouvelakis K, Lopes A, West N, Quirke P, Begum R, Valeri N, Beare S, Hughes L, Gonzalez De Castro D, Chau I. FCγRIIa and FCγRIIIa single nucleotide polymorphisms (SNPs) and cetuximab benefit in the EXCITE trial. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx659.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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25
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van Andel L, Rosing H, Zhang Z, Hughes L, Kansra V, Sanghvi M, Tibben MM, Gebretensae A, Schellens JHM, Beijnen JH. Determination of the absolute oral bioavailability of niraparib by simultaneous administration of a 14C-microtracer and therapeutic dose in cancer patients. Cancer Chemother Pharmacol 2017; 81:39-46. [PMID: 29043410 PMCID: PMC5754411 DOI: 10.1007/s00280-017-3455-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 08/09/2017] [Accepted: 10/11/2017] [Indexed: 02/07/2023]
Abstract
Introduction Niraparib (Zejula™) is a poly(ADP-ribose) polymerase inhibitor recently approved by the US Food and Drug Administration for the maintenance treatment of patients with recurrent platinum-sensitive epithelial ovarian, fallopian tube, or primary peritoneal cancer who are in a complete or partial response to platinum-based chemotherapy. The pivotal phase III clinical trial has shown improved progression-free survival in patients receiving niraparib compared with those receiving placebo. Purpose Since niraparib is administered orally, it is of interest to investigate the oral bioavailability (Fpo) of this novel compound, which is the aim of this study. Methods Six patients received an oral therapeutic dose of 300 mg niraparib, followed by a 15-min intravenous infusion of 100 µg 14C-niraparib with a radioactivity of approximately 100 nCi. The niraparib therapeutic dose was measured in plasma using a validated liquid chromatography–tandem mass spectrometry method, whereas the total 14C-radioactivity and 14C-niraparib plasma levels were measured by accelerator mass spectrometry and a validated high performance liquid chromatography assay with AMS. Results The Fpo of niraparib was determined to be 72.7% in humans.
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Affiliation(s)
- L van Andel
- Department of Pharmacy and Pharmacology, Antoni van Leeuwenhoek/The Netherlands Cancer Institute and MC Slotervaart, PO Box 90440, 1006 BK, Amsterdam, The Netherlands.
| | - H Rosing
- Department of Pharmacy and Pharmacology, Antoni van Leeuwenhoek/The Netherlands Cancer Institute and MC Slotervaart, PO Box 90440, 1006 BK, Amsterdam, The Netherlands
| | - Z Zhang
- TESARO, Inc., Waltham, MA, USA
| | | | | | - M Sanghvi
- Xceleron, Inc., A Pharmaron Company, Germantown, MD, USA
| | - M M Tibben
- Department of Pharmacy and Pharmacology, Antoni van Leeuwenhoek/The Netherlands Cancer Institute and MC Slotervaart, PO Box 90440, 1006 BK, Amsterdam, The Netherlands
| | - A Gebretensae
- Department of Pharmacy and Pharmacology, Antoni van Leeuwenhoek/The Netherlands Cancer Institute and MC Slotervaart, PO Box 90440, 1006 BK, Amsterdam, The Netherlands
| | - J H M Schellens
- Division of Clinical Pharmacology, Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.,Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - J H Beijnen
- Department of Pharmacy and Pharmacology, Antoni van Leeuwenhoek/The Netherlands Cancer Institute and MC Slotervaart, PO Box 90440, 1006 BK, Amsterdam, The Netherlands.,Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
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26
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Trad M, Boyer S, VanBelle C, Hughes L, Moody B. Advancing drug development in neuro-orphan indications. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2725] [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: 11/16/2022]
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27
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Vivekanandan S, Landau DB, Counsell N, Warren DR, Khwanda A, Rosen SD, Parsons E, Ngai Y, Farrelly L, Hughes L, Hawkins MA, Fenwick JD. The Impact of Cardiac Radiation Dosimetry on Survival After Radiation Therapy for Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2017; 99:51-60. [PMID: 28816160 PMCID: PMC5554783 DOI: 10.1016/j.ijrobp.2017.04.026] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 04/07/2017] [Accepted: 04/19/2017] [Indexed: 12/17/2022]
Abstract
PURPOSE The heart receives high radiation doses during radiation therapy of advanced-stage lung cancer. We have explored associations between overall survival, cardiac radiation doses, and electrocardiographic (ECG) changes in patients treated in IDEAL-CRT, a trial of isotoxically escalated concurrent chemoradiation delivering tumor doses of 63 to 73 Gy. METHODS AND MATERIALS Dosimetric and survival data were analyzed for 78 patients. The whole heart, pericardium, AV node, and walls of left and right atria (LA/RA-Wall) and ventricles (LV/RV-Wall) were outlined on radiation therapy planning scans, and differential dose-volume histograms (dDVHs) were calculated. For each structure, dDVHs were approximated using the average dDVH and the 10 highest-ranked structure-specific principal components (PCs). ECGs at baseline and 6 months after radiation therapy were analyzed for 53 patients, dichotomizing patients according to presence or absence of "any ECG change" (conduction or ischemic/pericarditis-like change). All-cause death rate (DR) was analyzed from the start of treatment using Cox regression. RESULTS 38% of patients had ECG changes at 6 months. On univariable analysis, higher scores for LA-Wall-PC6, Heart-PC6, "any ECG change," and larger planning target volume (PTV) were significantly associated with higher DR (P=.003, .009, .029, and .037, respectively). Heart-PC6 and LA-Wall-PC6 represent larger volumes of whole heart and left atrial wall receiving 63 to 69 Gy. Cardiac doses ≥63 Gy were concentrated in the LA-Wall, and consequently Heart-PC6 was highly correlated with LA-Wall-PC6. "Any ECG change," LA-Wall-PC6 scores, and PTV size were retained in the multivariable model. CONCLUSIONS We found associations between higher DR and conduction or ischemic/pericarditis-like changes on ECG at 6 months, and between higher DR and higher Heart-PC6 or LA-Wall-PC6 scores, which are closely related to heart or left atrial wall volumes receiving 63 to 69 Gy in this small cohort of patients.
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Affiliation(s)
- S Vivekanandan
- Department of Oncology and CRUK MRC, Oxford Institute for Radiation Oncology, Gray Laboratories, University of Oxford, Oxford, UK
| | - D B Landau
- Department of Oncology, Guy's & St. Thomas' NHS Trust, King's College London, UK
| | - N Counsell
- Cancer Research UK & UCL Cancer Trials Centre Cancer Institute, University College London, London, UK
| | - D R Warren
- Department of Oncology and CRUK MRC, Oxford Institute for Radiation Oncology, Gray Laboratories, University of Oxford, Oxford, UK
| | - A Khwanda
- Department of Cardiology, Ealing Hospital and Imperial College London, UK
| | - S D Rosen
- Department of Cardiology, Ealing and Royal Brompton Hospitals & Imperial College, London, UK
| | - E Parsons
- Radiotherapy Trials Quality Assurance, Mount Vernon Hospital, Middlesex, UK
| | - Y Ngai
- Cancer Research UK & UCL Cancer Trials Centre Cancer Institute, University College London, London, UK
| | - L Farrelly
- Cancer Research UK & UCL Cancer Trials Centre Cancer Institute, University College London, London, UK
| | - L Hughes
- Cancer Research UK & UCL Cancer Trials Centre Cancer Institute, University College London, London, UK
| | - M A Hawkins
- Department of Oncology and CRUK MRC, Oxford Institute for Radiation Oncology, Gray Laboratories, University of Oxford, Oxford, UK.
| | - J D Fenwick
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, Liverpool, UK; Department of Physics, Clatterbridge Cancer Centre, Wirral, UK
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Hughes L, Wilson K. The Role of Social Media Platforms and the Internet in Community Nutrition Education: Making the 21st Century a Healthier Place. J Acad Nutr Diet 2017. [DOI: 10.1016/j.jand.2017.06.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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29
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Zhang ZY, Kansra V, van Andel L, Tibben M, Rosing H, Lu S, Agarwal S, Hughes L, Schellens J, Beijnen J. Characterization of Absorption, Metabolism, and Elimination of Niraparib, an Investigational Poly (ADP-Ribose) Polymerase Inhibitor, in Cancer Patients. Clin Ther 2017. [DOI: 10.1016/j.clinthera.2017.05.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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30
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Staiger P, Manning V, Leung D, Hall K, Verdejo-Garcia A, Hughes L. REMOVED: Do Impulsive Individuals Respond Better to Cognitive Bias Modification Treatment for Alcohol Dependence? Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.1054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
This has been removed as it was published accidentally. The authors listed wish it to be known that this article was not presented at the conference for which this volume is the proceedings.The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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31
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van Andel L, Zhang Z, Lu S, Kansra V, Agarwal S, Hughes L, Tibben MM, Gebretensae A, Lucas L, Hillebrand MJX, Rosing H, Schellens JHM, Beijnen JH. Human mass balance study and metabolite profiling of 14C-niraparib, a novel poly(ADP-Ribose) polymerase (PARP)-1 and PARP-2 inhibitor, in patients with advanced cancer. Invest New Drugs 2017; 35:751-765. [PMID: 28303528 PMCID: PMC5694528 DOI: 10.1007/s10637-017-0451-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 02/03/2017] [Accepted: 03/02/2017] [Indexed: 02/07/2023]
Abstract
Niraparib is an investigational oral, once daily, selective poly(ADP-Ribose) polymerase (PARP)-1 and PARP-2 inhibitor. In the pivotal Phase 3 NOVA/ENGOT/OV16 study, niraparib met its primary endpoint of improving progression-free survival (PFS) for adult patients with recurrent, platinum sensitive, ovarian, fallopian tube, or primary peritoneal cancer in complete or partial response to platinum-based chemotherapy. Significant improvements in PFS were seen in all patient cohorts regardless of biomarker status. This study evaluates the absorption, metabolism and excretion (AME) of 14C-niraparib, administered to six patients as a single oral dose of 300 mg with a radioactivity of 100 μCi. Total radioactivity (TRA) in whole blood, plasma, urine and faeces was measured using liquid scintillation counting (LSC) to obtain the mass balance of niraparib. Moreover, metabolite profiling was performed on selected plasma, urine and faeces samples using liquid chromatography - tandem mass spectrometry (LC-MS/MS) coupled to off-line LSC. Mean TRA recovered over 504 h was 47.5% in urine and 38.8% in faeces, indicating that both renal and hepatic pathways are comparably involved in excretion of niraparib and its metabolites. The elimination of 14C-radioactivity was slow, with t1/2 in plasma on average 92.5 h. Oral absorption of 14C-niraparib was rapid, with niraparib concentrations peaking at 2.49 h, and reaching a mean maximum concentration of 540 ng/mL. Two major metabolites were found: the known metabolite M1 (amide hydrolysed niraparib) and the glucuronide of M1. Based on this study it was shown that niraparib undergoes hydrolytic, and conjugative metabolic conversions, with the oxidative pathway being minimal.
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Affiliation(s)
- Lotte van Andel
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek Hospital / The Netherlands Cancer Institute and MC Slotervaart, P.O. Box 90440, 1006 BK, Amsterdam, The Netherlands.
| | - Z Zhang
- Tesaro Inc., Waltham, MA, USA
| | - S Lu
- Tesaro Inc., Waltham, MA, USA
| | | | | | | | - M M Tibben
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek Hospital / The Netherlands Cancer Institute and MC Slotervaart, P.O. Box 90440, 1006 BK, Amsterdam, The Netherlands
| | - A Gebretensae
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek Hospital / The Netherlands Cancer Institute and MC Slotervaart, P.O. Box 90440, 1006 BK, Amsterdam, The Netherlands
| | - L Lucas
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek Hospital / The Netherlands Cancer Institute and MC Slotervaart, P.O. Box 90440, 1006 BK, Amsterdam, The Netherlands
| | - M J X Hillebrand
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek Hospital / The Netherlands Cancer Institute and MC Slotervaart, P.O. Box 90440, 1006 BK, Amsterdam, The Netherlands
| | - H Rosing
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek Hospital / The Netherlands Cancer Institute and MC Slotervaart, P.O. Box 90440, 1006 BK, Amsterdam, The Netherlands
| | - J H M Schellens
- Division of Clinical Pharmacology, Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands.,Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - J H Beijnen
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek Hospital / The Netherlands Cancer Institute and MC Slotervaart, P.O. Box 90440, 1006 BK, Amsterdam, The Netherlands.,Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
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van Andel L, Zhang Z, Lu S, Kansra V, Agarwal S, Hughes L, Tibben MM, Gebretensae A, Rosing H, Schellens JHM, Beijnen JH. Liquid chromatography-tandem mass spectrometry assay for the quantification of niraparib and its metabolite M1 in human plasma and urine. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1040:14-21. [PMID: 27898364 DOI: 10.1016/j.jchromb.2016.11.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 08/15/2016] [Revised: 11/04/2016] [Accepted: 11/12/2016] [Indexed: 12/19/2022]
Abstract
Niraparib (MK-4827) is a novel poly(ADP-Ribose) polymerase (PARP) inhibitor currently investigated in phase III clinical trials to treat cancers. The development of a new drug includes the characterisation of absorption, metabolism and excretion (AME) of the compound. AME studies are a requirement of regulatory agencies and for this purpose bioanalytical assays are essential. This article describes the development and validation of a bioanalytical assay for niraparib and its carboxylic acid metabolite M1 in human plasma and urine using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Sample pre-treatment involved protein precipitation for plasma and dilution of urine samples using acetonitrile-methanol (50:50, v/v). Final extracts were injected onto a SunFire C18 column and gradient elution using 20mM ammonium acetate (mobile phase A) and formic acid:acetonitrile:methanol (0.1:50:50, v/v/v) (mobile phase B) was applied. Detection was performed on an API5500 tandem mass spectrometer operating in the positive electrospray ionisation mode applying multiple reaction monitoring (MRM). The assay was successfully validated in accordance with the Food and Drug Administration and latest European Medicines Agency guidelines on bioanalytical method validation and can therefore be applied in pharmacological clinical studies.
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Affiliation(s)
- L van Andel
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek/The Netherlands Cancer Institute and MC Slotervaart, Amsterdam, The Netherlands.
| | - Z Zhang
- Tesaro Inc., Waltham, MA, United States
| | - S Lu
- Tesaro Inc., Waltham, MA, United States
| | - V Kansra
- Tesaro Inc., Waltham, MA, United States
| | - S Agarwal
- Tesaro Inc., Waltham, MA, United States
| | - L Hughes
- Tesaro Inc., Waltham, MA, United States
| | - M M Tibben
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek/The Netherlands Cancer Institute and MC Slotervaart, Amsterdam, The Netherlands
| | - A Gebretensae
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek/The Netherlands Cancer Institute and MC Slotervaart, Amsterdam, The Netherlands
| | - H Rosing
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek/The Netherlands Cancer Institute and MC Slotervaart, Amsterdam, The Netherlands
| | - J H M Schellens
- Division of Clinical Pharmacology, Department of Medical Oncology, The Netherlands Cancer Institute, Amsterdam, The Netherlands; Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - J H Beijnen
- Department of Pharmacy & Pharmacology, Antoni van Leeuwenhoek/The Netherlands Cancer Institute and MC Slotervaart, Amsterdam, The Netherlands; Division of Pharmacoepidemiology and Clinical Pharmacology, Faculty of Science, Department of Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
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Hughes L, Hamm J, McGahan C, Baliski C. Surgeon Volume, Patient Age, and Tumor-Related Factors Influence the Need for Re-Excision After Breast-Conserving Surgery. Ann Surg Oncol 2016; 23:656-664. [PMID: 27718033 DOI: 10.1245/s10434-016-5602-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND Breast-conserving surgery (BCS) is the preferred surgical approach for the majority of patients with early-stage breast cancer. There are frequent issues regarding pathologic margin status, requiring margin re-excision, and, in the literature, there is significant variability in re-excision rates, suggesting this is a potential quality-of-care issue. Understanding the patient-, disease-, and physician-related factors influencing reoperation rates is of importance in an effort to minimize this occurrence. METHODS A retrospective analysis of all patients referred to our cancer center over a 3-year period (1 January 2011-31 December 2013) was performed. Surgeon volume, and patient- and tumor-related factors were assessed for their impact on re-excision rates. Multivariate logistic regression analysis was performed to identify variables of significance influencing reoperation rates after attempted BCS. RESULTS Overall, 594 patients underwent initial BCS, with 159 (26.8%) patients requiring at least one re-excision to ensure negative pathologic margins. On multivariate analysis, low surgeon case volume, patient age (under 46 years of age), tumor size (>2 cm), and lobular carcinoma were associated with an increased re-excision rate. CONCLUSION Re-excisions are frequent after BCS and are influenced by surgeon volume, patient age, and tumor-related factors. These factors should be considered when counseling patients considering BCS, and also for quality assurance.
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Affiliation(s)
- L Hughes
- Department of Surgical Oncology, Sindi Ahluwalia Hawkins Centre for the Southern Interior, BC Cancer Agency, Kelowna, BC, Canada.,University of British Columbia Okanagan, Kelowna, BC, Canada
| | - J Hamm
- Cancer Surveillance and Outcomes, BC Cancer Agency, Vancouver, BC, Canada
| | - C McGahan
- Cancer Surveillance and Outcomes, BC Cancer Agency, Vancouver, BC, Canada
| | - C Baliski
- Department of Surgical Oncology, Sindi Ahluwalia Hawkins Centre for the Southern Interior, BC Cancer Agency, Kelowna, BC, Canada. .,Department of Surgery, University of British Columbia, Vancouver, BC, Canada.
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Hughes L, Elnakib S. Garden-Enhanced Nutrition Education: What NJ Teachers Say They Need to Integrate Farm To School Concepts Into the Everyday Curriculum. J Acad Nutr Diet 2016. [DOI: 10.1016/j.jand.2016.06.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hughes L, Cirignano S, Fitzgerald N. Fruit and Vegetable Tastings in Schools Offer Potential for Increasing Consumption among Kindergarten through Sixth Grade Children. J Acad Nutr Diet 2016. [DOI: 10.1016/j.jand.2016.06.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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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Boot C, Holmes E, Neely D, Jenkinson F, Datta H, Hughes L. Validation of serum ApoB/cholesterol and ApoB/non-HDL cholesterol ratios as screening tests for type III hyperlipidaemia. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kittelmann M, Hawes C, Hughes L. Serial block face scanning electron microscopy and the reconstruction of plant cell membrane systems. J Microsc 2016; 263:200-11. [PMID: 27197647 DOI: 10.1111/jmi.12424] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 04/15/2016] [Accepted: 04/26/2016] [Indexed: 01/06/2023]
Abstract
Serial block face imaging with the scanning electron microscope has been developed as an alternative to serial sectioning and transmission electron microscopy for the ultrastructural analysis of the three-dimensional organization of cells and tissues. An ultramicrotome within the microscope specimen chamber permits sectioning and imaging to a depth of many microns within resin-embedded specimens. The technology has only recently been adopted by plant microscopists and here we describe some specimen preparation procedures suitable for plant tissue, suggested microscope imaging parameters and discuss the software required for image reconstruction and analysis.
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Affiliation(s)
- M Kittelmann
- Department of Biological & Medical Science, Oxford Brookes University, Oxford, OX3 0BP, UK
| | - C Hawes
- Department of Biological & Medical Science, Oxford Brookes University, Oxford, OX3 0BP, UK
| | - L Hughes
- Department of Biological & Medical Science, Oxford Brookes University, Oxford, OX3 0BP, UK
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Rao U, Eccleshall S, Sarev T, Hughes L, Ryding A, Wistow T, Gilbert T. 27 Clinical outcomes of unprotected left main stem percutaneous coronary intervention in a non-surgical centre. Heart 2016. [DOI: 10.1136/heartjnl-2016-309588.27] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Vivekanandan S, Counsell N, Khwanda A, Rosen S, Parsons E, Ngai Y, Farrelly L, Hughes L, Hawkins M, Landau D, Fenwcik J. OC-0057: Cardiotoxicity and cardiac substructure dosimetry in doseescalated lung radiotherapy. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31306-8] [Citation(s) in RCA: 2] [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: 11/16/2022]
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Hatton M, Daley D, Hughes L, Creagh-Brown BC, Creagh-Brown BC. P37 Frailty and its relationship to mortality in patients receiving acute non-invasive ventilation (NIV) for respiratory failure in a district general hospital. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Best W, Fedor A, Hughes L, Kapikian A, Masterson J, Roncoli S, Fern-Pollak L, Thomas M. Intervening to alleviate word-finding difficulties in children: case series data and a computational modelling foundation. Cogn Neuropsychol 2015; 32:133-68. [DOI: 10.1080/02643294.2014.1003204] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mantegazza C, Hughes L, Koegmeier J. PP229-SUN: Hospital Parenteral Nutrition in Children. Clin Nutr 2014. [DOI: 10.1016/s0261-5614(14)50270-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Eccles J, Iodice V, Dowell N, Owens A, Hughes L, Skipper S, Lycette Y, Humphries K, Harrison N, Mathias C, Critchley H. JOINT HYPERMOBILITY AND AUTONOMIC HYPERACTIVITY: RELEVANCE TO NEURODEVELOPMENTAL DISORDERS. Journal of Neurology, Neurosurgery & Psychiatry 2014. [DOI: 10.1136/jnnp-2014-308883.9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Parsons E, Tsang Y, Miles L, Mayles P, Hughes L, Landau D. EP-1767: A retrospective review of organ at risk outlining for the IDEAL-CRT trial and its effect on dose escalation. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31885-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hughes L, Ruth K, Rebbeck TR, Giri VN. Genetic variation in IL-16 miRNA target site and time to prostate cancer diagnosis in African-American men. Prostate Cancer Prostatic Dis 2013; 16:308-14. [PMID: 24061634 PMCID: PMC3865712 DOI: 10.1038/pcan.2013.36] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 08/01/2013] [Accepted: 08/05/2013] [Indexed: 01/02/2023]
Abstract
BACKGROUND Men with a family history of prostate cancer and African-American men are at high risk for prostate cancer and in need of personalized risk estimates to inform screening decisions. This study evaluated genetic variants in genes encoding microRNA (miRNA) binding sites for informing of time to prostate cancer diagnosis among ethnically diverse, high-risk men undergoing prostate cancer screening. METHODS The Prostate Cancer Risk Assessment Program (PRAP) is a longitudinal screening program for high-risk men. The eligibility includes men aged between 35 and 69 years with a family history of prostate cancer or African descent. Participants with 1 follow-up visit were included in the analyses (n=477). Genetic variants in genes encoding miRNA binding sites (ALOX15 (arachidonate 15-lipooxygenase), IL-16, IL-18 and RAF1 (v-raf-1 murine leukemia viral oncogene homolog 1)) previously implicated in prostate cancer development were evaluated. Genotyping methods included Taqman SNP Genotyping Assay or pyrosequencing. Cox models were used to assess time to prostate cancer diagnosis by risk genotype. RESULTS Among 256 African Americans with one follow-up visit, the TT genotype at rs1131445 in IL-16 was significantly associated with earlier time to prostate cancer diagnosis vs the CC/CT genotypes (P=0.013), with a suggestive association after correction for false discovery (P=0.065). Hazard ratio after controlling for age and PSA for TT vs CC/CT among African Americans was 3.0 (95% confidence interval: 1.26-7.12). No association with time to diagnosis was detected among Caucasians by IL-16 genotype. No association with time to prostate cancer diagnosis was found for the other miRNA target genotypes. CONCLUSIONS Genetic variation in IL-16 encoding miRNA target site may be informative of time to prostate cancer diagnosis among African-American men enrolled in prostate cancer risk assessment, which may inform individualized prostate cancer screening strategies in the future.
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Affiliation(s)
- L Hughes
- Cancer Prevention and Control Program, Fox Chase Cancer Center, Philadelphia, PA, USA
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Boyd J, Luo B, Peri S, Wirchansky B, Hughes L, Forsythe C, Wu H, Morgan M. Novel genetic alterations in serous borderline tumors of the ovary revealed by whole exome sequencing. Gynecol Oncol 2013. [DOI: 10.1016/j.ygyno.2013.04.363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Landau D, Laurence V, Illsley M, Hughes S, Miles E, Ngai Y, Hughes L, Khan I, Mayles P, Fenwick J. 54P A PHASE I/II TRIAL OF CONCURRENT CHEMO-RADIATION WITH DOSE-ESCALATED RADIOTHERAPY IN PATIENTS WITH STAGE II OR STAGE III NON-SMALL CELL LUNG CANCER. Lung Cancer 2013. [DOI: 10.1016/s0169-5002(13)70275-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Landau D, Miles E, Illsley M, Laurence V, Hughes S, Ngai Y, Hughes L, Khan I, Mayles H, Mayles P, Fenwick J. 186 A phase I/II trial of concurrent chemo-radiation with dose-escalated radiotherapy in patients with stage II or stage III non-small cell lung cancer. Lung Cancer 2013. [DOI: 10.1016/s0169-5002(13)70186-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Peters B, Post F, Wierzbicki AS, Phillips A, Power L, Das S, Johnson M, Moyle G, Hughes L, Wilkins E, McCloskey E, Compston J, Di Angelantonio E. Screening for chronic comorbid diseases in people with HIV: the need for a strategic approach. HIV Med 2012; 14 Suppl 1:1-11. [DOI: 10.1111/j.1468-1293.2012.01055.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- B Peters
- Department of Infectious Diseases; King's College London; London
| | | | - AS Wierzbicki
- Department of Metabolic Medicine and Chemical Pathology; Guy's & St Thomas′ Hospitals; London
| | - A Phillips
- Research Department of Infection and Population Health; University College London; London
| | - L Power
- Terrence Higgins Trust; London
| | | | - M Johnson
- Department of Thoracic Medicine; Royal Free London; NHS Foundation Trust; London
| | - G Moyle
- Chelsea and Westminster Hospital; London
| | | | - E Wilkins
- North Manchester General Hospital; Manchester
| | - E McCloskey
- Academic Unit of Bone Metabolism; Metabolic Bone Centre; Northern General Hospital; Sheffield
| | - J Compston
- University of Cambridge School of Clinical Medicine; Cambridge
| | - E Di Angelantonio
- Department of Public Health and Primary Care; University of Cambridge; Cambridge; UK
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Affiliation(s)
- A. Bush
- Macquarie University; Sydney; NSW; Australia
| | | | | | | | - L. Hughes
- Macquarie University; Sydney; NSW; Australia
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