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Strauss C, Bibby-Jones AM, Jones F, Byford S, Heslin M, Parry G, Barkham M, Lea L, Crane R, de Visser R, Arbon A, Rosten C, Cavanagh K. Clinical Effectiveness and Cost-Effectiveness of Supported Mindfulness-Based Cognitive Therapy Self-help Compared With Supported Cognitive Behavioral Therapy Self-help for Adults Experiencing Depression: The Low-Intensity Guided Help Through Mindfulness (LIGHTMind) Randomized Clinical Trial. JAMA Psychiatry 2023; 80:415-424. [PMID: 36947058 PMCID: PMC10034662 DOI: 10.1001/jamapsychiatry.2023.0222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 01/26/2023] [Indexed: 03/23/2023]
Abstract
Importance Depression is prevalent. Treatment guidelines recommend practitioner-supported cognitive behavioral therapy self-help (CBT-SH) for mild to moderate depression in adults; however, dropout rates are high. Alternative approaches are required. Objective To determine if practitioner-supported mindfulness-based cognitive therapy self-help (MBCT-SH) is superior to practitioner-supported CBT-SH at reducing depressive symptom severity at 16 weeks postrandomization among patients with mild to moderate depression and secondarily to examine if practitioner-supported MBCT-SH is cost-effective compared with practitioner-supported CBT-SH. Design, Setting, and Participants This was an assessor- and participant-blinded superiority randomized clinical trial with 1:1 automated online allocation stratified by center and depression severity comparing practitioner-supported MBCT-SH with practitioner-supported CBT-SH for adults experiencing mild to moderate depression. Recruitment took place between November 24, 2017, and January 31, 2020. The study took place in 10 publicly funded psychological therapy services in England (Improving Access to Psychological Therapies [IAPT]). A total of 600 clients attending IAPT services were assessed for eligibility, and 410 were enrolled. Participants met diagnostic criteria for mild to moderate depression. Data were analyzed from January to October 2021. Interventions Participants received a copy of either an MBCT-SH or CBT-SH workbook and were offered 6 support sessions with a trained practitioner. Main Outcomes and Measures The preregistered primary outcome was Patient Health Questionnaire (PHQ-9) score at 16 weeks postrandomization. The primary analysis was intention-to-treat with treatment arms masked. Results Of 410 randomized participants, 255 (62.2%) were female, and the median (IQR) age was 32 (25-45) years. At 16 weeks postrandomization, practitioner-supported MBCT-SH (n = 204; mean [SD] PHQ-9 score, 7.2 [4.8]) led to significantly greater reductions in depression symptom severity compared with practitioner-supported CBT-SH (n = 206; mean [SD] PHQ-9 score, 8.6 [5.5]), with a between-group difference of -1.5 PHQ-9 points (95% CI, -2.6 to -0.4; P = .009; d = -0.36). The probability of MBCT-SH being cost-effective compared with CBT-SH exceeded 95%. However, although between-group effects on secondary outcomes were in the hypothesized direction, they were mostly nonsignificant. Three serious adverse events were reported, all deemed not study related. Conclusions and Relevance In this randomized clinical trial, practitioner-supported MBCT-SH was superior to standard recommended treatment (ie, practitioner-supported CBT-SH) for mild to moderate depression in terms of both clinical effectiveness and cost-effectiveness. Findings suggest that MBCT-SH for mild to moderate depression should be routinely offered to adults in primary care services. Trial Registration isrctn.org Identifier: ISRCTN13495752.
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Affiliation(s)
- Clara Strauss
- School of Psychology, University of Sussex, Falmer, United Kingdom
- R&D Department, Sussex Education Centre, Sussex Partnership NHS Foundation Trust, Hove, United Kingdom
| | - Anna-Marie Bibby-Jones
- R&D Department, Sussex Education Centre, Sussex Partnership NHS Foundation Trust, Hove, United Kingdom
- School of Health Sciences, University of Brighton, Brighton, United Kingdom
| | - Fergal Jones
- Salmons Institute for Applied Psychology, Canterbury Christ Church University, Tunbridge Wells, United Kingdom
- Sussex Partnership Foundation NHS Trust, Worthing, United Kingdom
| | - Sarah Byford
- King’s Health Economics, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, United Kingdom
| | - Margaret Heslin
- King’s Health Economics, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London, United Kingdom
| | - Glenys Parry
- School of Health and Related Research, University of Sheffield, Sheffield, United Kingdom
| | - Michael Barkham
- Clinical and Applied Psychology Unit, Department of Psychology, University of Sheffield, Sheffield, United Kingdom
| | - Laura Lea
- Sussex Partnership Foundation NHS Trust, Worthing, United Kingdom
| | - Rebecca Crane
- Centre for Mindfulness Research and Practice, School of Psychology, Bangor University, Bangor, United Kingdom
| | | | - Amy Arbon
- University Hospitals Sussex NHS Trust, Royal Sussex County Hospital, Brighton, United Kingdom
- Brighton & Sussex Clinical Trials Unit, Watson Building, University of Brighton, Brighton, United Kingdom
| | - Claire Rosten
- School of Sport and Health Sciences, University of Brighton, Brighton, United Kingdom
| | - Kate Cavanagh
- School of Psychology, University of Sussex, Falmer, United Kingdom
- R&D Department, Sussex Education Centre, Sussex Partnership NHS Foundation Trust, Hove, United Kingdom
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Cody E, Brunner H, Huang B, Qiu T, Devarajan P, Ramaswamy M, Sinibaldi D, Brohawn PZ, Knagenhjelm J, Jones F, Tummala R, Lindholm C, White W. POS0739 THE RENAL ACTIVITY INDEX FOR LUPUS (RAIL) DIFFERENTIATES ACTIVE AND INACTIVE NEPHRITIS IN ADULT PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS (SLE). Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1654] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundLupus nephritis (LN) confers a poor prognosis, with lack of effective laboratory tests to diagnose and evaluate therapies. We have demonstrated that the RAIL score, based on a set of six urinary biomarkers (NGAL, KIM-1, MCP-1, adiponectin, hemopexin, ceruloplasmin) is sensitive and specific in adult patients with active LN, using renal biopsy as reference.1,2 RAIL has been shown in the pediatric population to be effective in distinguishing inactive vs active LN with no effect from mycophenolate mofetil (MMF) treatment. A comparable study has not been conducted in an adult population.ObjectivesTo assess the ability of RAIL to discriminate patients with active LN vs active non-renal SLE and to evaluate if RAIL performance varies by MMF treatment using urine samples from adult LN patients.MethodsUrine samples were obtained at baseline in two clinical trials: a phase 2 study in adult patients with biopsy-proven active Class III and IV LN (NCT02547922) and a subset of patients from the phase 3 trial in adults with active non-renal SLE (NCT02446912) who had baseline renal BILAG scores C, D, or E. RAIL biomarkers were assayed using single-plex assays. Patient demographics and clinical characteristics were compared between studies. Wilcoxon rank sum test was performed comparing the urinary biomarkers between the two studies and RAIL score was then calculated. Receiver operating characteristic (ROC) analyses were conducted assessing the ability for RAIL scores to distinguish patients with renal activity and involvement.ResultsComparison of the patient demographic, clinical characteristics, and biomarkers is in the Table 1. Wilcoxon rank sum test showed the six urinary biomarkers were significantly different between two groups of patients as demonstrated (Table 1). Each of the RAIL biomarker concentrations and the creatinine-adjusted median score were higher in the active LN group than the SLE group (P<0.001). ROC analyses including RAIL score showed an area under the ROC curve of 0.8 (Figure 1), with odds ratio of log-transformed RAIL 2.027 (95% CI [1.587, 2.589]). There were no significant interactions between RAIL and MMF. RAIL remained significant after adjusting for estimated glomerular filtration rate (eGFR), which was not statistically significant.Table 1.Study Demographics and BiomarkersVariablesLN study (N=131)SLE study (N=59)Observed NObserved Median (IQR) or %Observed NObserved Median (IQR) or %DemographicsAge13134 (25, 42)5936 (28, 44)Sex, Female10983.21%5593.22%Race, White5642.75%4576.27%Ethnicity, Hispanic or Latino6146.56%915.25%OCS use, yes12797.69%5796.61%MMF use, yes9572.52%2135.59%Spot UPCR (mg/mg)1282.13 (1.22, 4.04)591.11 (0.55, 2.61)eGFR13091.8 (63.1, 125)5998.06 (81.91, 116.54)Non-renal SLEDAI-2K score1304 (4, 6)5912 (9, 13)Renal SLEDAI-2K score1304 (4, 8)590 (0, 0)BiomarkersNGAL (ng/mL)12833.33 (17.55, 56.7)5819.47 (11.37, 42.05)MCP-1 (pg/mL)128658.24 (271.58, 1049.95)58275.62 (106.09, 481.99)Ceruloplasmin (ng/mL)12893.55 (44.5, 311.25)5847.2 (13.05, 231.25)Adiponectin (ng/mL)12842.45 (16.71, 139.64)589.33 (3.35, 25.51)Hemopexin (ng/mL)1281876.8 (745.07, 4743.4)58513.4 (236.36, 1388.74)KIM-1 (pg/mL)1281673.5 (772.5, 2767)58864 (394, 1480)Creatinine (mg/mL)1280.7 (0.46, 1.3)580.99 (0.46, 1.74)Adult RAIL score (creatinine adjusted)1285.59 (4.31, 6.47)583.57 (2.78, 4.47)eGFR, estimated glomerular filtration rate; IQR, interquartile range; KIM, kidney injury molecule; LN, lupus nephritis; MCP, monocyte chemotactic protein; MMF, mycophenolate mofetil; NGAL, neutrophil gelatinase-associated lipocalin; OCS, oral corticosteroid; SLEDAI-2K, SLE Disease Activity Index 2000; UPCR, urine protein/creatinine ratio.ConclusionThe analyses performed suggest that creatinine-corrected RAIL discriminates between active LN and non-renal adult SLE, with RAIL scores not influenced by MMF use.References[1]Brunner HI. Arthritis Care Res (Hoboken). 2016;68:1003–11.[2]Gulati G. Lupus. 2017;26:927–36.AcknowledgementsWriting assistance by Kelly M. Hunter, PhD (Fishawack). This study was sponsored by AstraZeneca.Disclosure of InterestsEllen Cody: None declared, Hermine Brunner Speakers bureau: Novartis, Pfizer, GSK, Consultant of: AbbVie, Astra Zeneca-Medimmune, Biogen, Boehringer, Bristol Myers Squibb, Celgene, Lilly,EMD Serono, Idorsia, Cerocor, Janssen, GSK, F. Hoffmann-La Roche, Merck, Novartis, R-Pharm, Sanofi, Grant/research support from: Pfizer, Bin Huang: None declared, Tingting Qiu: None declared, Prasad Devarajan Speakers bureau: Reata, Alnylam, Dicerna, Consultant of: BioPorto Inc, Madhu Ramaswamy Shareholder of: AstraZeneca, Employee of: AstraZeneca, Dominic Sinibaldi Shareholder of: AstraZeneca, Employee of: AstraZeneca, Philip Z Brohawn Shareholder of: AstraZeneca, Employee of: AstraZeneca, Jacob Knagenhjelm Shareholder of: AstraZeneca, Employee of: AstraZeneca, Frederick Jones Shareholder of: AstraZeneca, Employee of: AstraZeneca, Raj Tummala Shareholder of: AstraZeneca, Employee of: AstraZeneca, Catharina Lindholm Employee of: AstraZeneca, Wendy White Shareholder of: AstraZeneca, Employee of: AstraZeneca
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Ellis K, Jones F. An initial evaluation of narrative exposure therapy as a treatment of posttraumatic stress disorder among Sudanese refugees in Cairo, delivered by lay counselors. Middle East Curr Psychiatry 2022. [DOI: 10.1186/s43045-022-00194-0] [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] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
The growing worldwide refugee crisis highlights the needs for increased access to mental health services, including in the large urban cities in the Middle East to which refugees are frequently displaced and in which access to such services is limited. The current study offers an initial evaluation of narrative exposure therapy as a treatment for posttraumatic stress disorder among Sudanese refugees in Cairo, delivered by lay counselors. Sudanese refugees with no prior background in counseling were given 27 h of training in narrative exposure therapy. They then delivered this to seven members of the same refugee community with a diagnosis of posttraumatic stress disorder at a local community center, and this was evaluated using a pre-post design and a focus-group with the intervention recipients.
Results
Despite the small sample size, over the course of the intervention there was significant decrease in trauma and anxiety symptoms, and a close to significant decrease in depression. Moreover, the focus group participants generally spoke positively about their experiences.
Conclusions
To the best of the authors’ knowledge, this is the first study to examine the viability of lay counselors delivering narrative exposure therapy to refugees with posttraumatic stress disorder in a complex urban setting. The findings suggest that this approach has promise and support the case for a randomized control trial of narrative exposure therapy delivered in this manner in such a setting.
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Bellmunt J, Powles T, van der Heijden M, Galsky M, He P, Wang Z, Xiao F, Jones F, Scott M, Walker J, Angra N, Gupta A, Drakaki A, Kimura G, Mizokami A, Wildsmith S. 708P PD-L1 as a predictor of survival in patients with metastatic urothelial carcinoma (mUC) from the phase III DANUBE trial of durvalumab (D) or durvalumab plus tremelimumab (D+T) versus standard of care chemotherapy (SoC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.104] [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] Open
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Sathyanarayan P, Sloane H, Edelstein D, Jones F, Preston J, Wu S, Los J, Holtrup F, Quinn H, Feller-Kopman D. 164P Rapid liquid biopsy genotyping in NSCLC patients. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)02006-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Lemmey S, Burns J, Jones F. Developing additional competition classes for athletes with intellectual impairments: Conceptual approach and efficacy of an ICF derived measure. J Sports Sci 2021; 39:99-108. [PMID: 33586628 DOI: 10.1080/02640414.2021.1881302] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The purpose of para sport classification systems is to minimize the impact of impairment on competition outcome. Currently, athletes with intellectual impairment (II) compete in one class, regardless of the extent of activity limitation resulting from their impairment. Consequently, athletes with II that cause relatively minor difficulty in sport have a competitive advantage over athletes who have intellectual impairments that cause more significant advantage. This research investigated the efficacy of a measure of health-related functional impairment, derived from the World Health Organization International Classification of Functioning, Disability, and Health (ICF), as a tool to classify athletes with intellectual impairments (II) into groups with impairments that cause similar activity limitation. The first study used a Delphi technique to identify the most relevant codes within the ICF from which a measure of impairment presence and severity was derived. The second study investigated whether the measure could discriminate between groups of II athletes organized into three competition groups, and whether these groups could be predicted by ICF score. The ICF-based questionnaire shows promise as a conceptual approach and as a tool in this context, but this is a preliminary step before establishing a sport-specific approach to classification.
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Affiliation(s)
- Suzie Lemmey
- Salomons Institute for Applied Psychology, Canterbury Christ Church University, Canterbury, UK
| | - Jan Burns
- Salomons Institute for Applied Psychology, Canterbury Christ Church University, Canterbury, UK
| | - Fergal Jones
- Salomons Institute for Applied Psychology, Canterbury Christ Church University, Canterbury, UK
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Strauss C, Arbon A, Barkham M, Byford S, Crane R, de Visser R, Heslin M, Jones AM, Jones F, Lea L, Parry G, Rosten C, Cavanagh K. Low-Intensity Guided Help Through Mindfulness (LIGHTMIND): study protocol for a randomised controlled trial comparing supported mindfulness-based cognitive therapy self-help to supported cognitive behavioural therapy self-help for adults experiencing depression. Trials 2020; 21:374. [PMID: 32366320 PMCID: PMC7199325 DOI: 10.1186/s13063-020-04322-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/10/2020] [Indexed: 12/18/2022] Open
Abstract
Background Depression has serious personal, family and economic consequences. It is estimated that it will cost £12.15 billion to the economy each year in England by 2026. Improving access to psychological therapies (IAPT) is the National Health Service talking therapies service in England for adults experiencing anxiety or depression. Over 1 million people are referred to IAPT every year, over half experiencing depression. Where symptoms of depression are mild to moderate, people are typically offered cognitive behavioural therapy (CBT) self-help (CBT-SH) supported by a psychological well-being practitioner. The problem is that over half of people who complete treatment for depression in IAPT remain depressed despite receiving National Institute of Health and Care Excellent recommended treatment. Furthermore, less than half of IAPT service users complete treatment. This study seeks to investigate the effectiveness of an alternative to CBT-SH. Mindfulness-based cognitive therapy (MBCT) differs from CBT in focus, approach and practice, and may be more effective with a higher number of treatment completions. Methods/design This is a definitive randomised controlled trial comparing supported MBCT self-help (MBCT-SH) with CBT-SH for adults experiencing mild to moderate depression being treated in IAPT services. We will recruit 410 participants experiencing mild to moderate depression from IAPT services and randomise these to receive either an MBCT-based self-help workbook or a CBT-based self-help workbook. Participants will be asked to complete their workbook within 16 weeks, with six support sessions with a psychological well-being practitioner. The primary outcome is depression symptom severity on treatment completion. Secondary outcomes are treatment completion rates and measures of generalized anxiety, well-being, functioning and mindfulness. An exploratory non-inferiority analysis will be conducted in the event the primary hypothesis is not supported. A semi-structured interview with participants will guide understanding of change processes. Discussion If the findings from this randomised controlled trial demonstrate that MBCT-SH is more effective than CBT-SH for adults experiencing depression, this will provide evidence for policy makers and lead to changes to clinical practice in IAPT services, leading to greater choice of self-help treatment options and better outcomes for service users. If the exploratory non-inferiority analysis is conducted and this indicates non-inferiority of MBCT-SH in comparison to CBT-SH this will also be of interest to policy makers when seeking to increase service user choice of self-help treatment options for depression. Trial registration Current Controlled Trial registration number: ISRCTN 13495752. Registered on 31 August 2017 (www.isrctn.com/ISRCTN13495752).
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Affiliation(s)
- Clara Strauss
- School of Psychology, University of Sussex, Pevensey Building, Falmer, BN1 9QH, UK. .,Sussex Partnership NHS Foundation Trust, R&D Department, Sussex Education Centre, Nevill Avenue, Hove, BN3 7HZ, UK.
| | - Amy Arbon
- Brighton and Sussex University Hospitals NHS Trust, Royal Sussex County Hospital, Eastern Road, Brighton, BN2 5BE, UK.,Brighton & Sussex Clinical Trials Unit, Bevendean House, University of Brighton, Falmer, BN1 9PH, UK
| | - Michael Barkham
- Clinical Psychology Unit, Department of Psychology, University of Sheffield, S10 2TP, Sheffield, UK
| | - Sarah Byford
- King's Health Economics Research Group and Health Service and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 8AF, UK
| | - Rebecca Crane
- Centre for Mindfulness Research and Practice, School of Psychology, Bangor University, Bangor, Gwynedd, LL57 2AS, UK
| | - Richard de Visser
- School of Psychology, University of Sussex, Pevensey Building, Falmer, BN1 9QH, UK
| | - Margaret Heslin
- King's Health Economics Research Group and Health Service and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 8AF, UK
| | - Anna-Marie Jones
- Sussex Partnership NHS Foundation Trust, R&D Department, Sussex Education Centre, Nevill Avenue, Hove, BN3 7HZ, UK.,School of Health Sciences, University of Brighton, Village Way, Brighton, BN1 9PH, UK
| | - Fergal Jones
- Sussex Partnership NHS Foundation Trust, R&D Department, Sussex Education Centre, Nevill Avenue, Hove, BN3 7HZ, UK.,Canterbury Christ Church University, Salmons Institute for Applied Psychology, Lucy Fildes Building, 1 Meadow Road, Tunbridge Wells, TN1 2YG, UK
| | - Laura Lea
- Sussex Partnership NHS Foundation Trust, R&D Department, Sussex Education Centre, Nevill Avenue, Hove, BN3 7HZ, UK
| | - Glenys Parry
- School of Health and Related Research, University of Sheffield, S10 2TP, Sheffield, UK
| | - Claire Rosten
- School of Health Sciences, University of Brighton, Village Way, Brighton, BN1 9PH, UK
| | - Kate Cavanagh
- School of Psychology, University of Sussex, Pevensey Building, Falmer, BN1 9QH, UK
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Nangia C, Soon-Shiong P, Rabizadeh S, Lee J, Sender L, Jones F, Kistler M, Niazi K, Seery T, Rock A, Jafari O. Complete responses in patients with second-line or greater metastatic triple negative breast cancer (TNBC) following first-in-human immunotherapy combining NK and T cell activation with off-the-shelf high-affinity CD16 NK cell line (haNK). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz242.053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Affiliation(s)
- F Jones
- Centre for Colorectal Disease, St. Vincent's University Hospital, Dublin, Ireland.,School of Medicine, University College Dublin, Ireland
| | - G A Doherty
- Centre for Colorectal Disease, St. Vincent's University Hospital, Dublin, Ireland.,School of Medicine, University College Dublin, Ireland
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Abstract
Aims and MethodThe National Institute for Health and Care Excellence recommends involving the families of patients admitted to psychiatric hospital care, without specific guidance on how to do it. To improve family involvement in a National Health Service psychiatric intensive care unit, a relatives' and carers' clinic was set up. Fifty family members attended and completed questionnaires. Nine went on to take part in interviews, the results of which were analysed using thematic analysis. RESULTS: Families felt more informed and found the increased access to information useful. They felt that the process showed respect for them and their family member, and that their contribution was valued. Running throughout the interviews was the contrast with previous experiences; families reported feeling heard and understood and attributed this in part to timing and environment.Clinical implicationsThe clinic was viewed positively by families and met the trust's commitment to including carers, as well as national guidance which suggests it should be part of routine practice.Declaration of interestNone.
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Affiliation(s)
- Rosemary Sedgwick
- South London and Maudsley NHS Foundation Trust/King's College London
| | - Alexa Duff
- St George's University Hospitals NHS Foundation Trust
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Taylor-Roberts L, Strohmaier S, Jones F, Baker P. A systematic review of community participation measures for people with intellectual disabilities. J Appl Res Intellect Disabil 2019; 32:706-718. [PMID: 30693602 DOI: 10.1111/jar.12565] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 10/22/2018] [Accepted: 12/20/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND Community participation is considered a fundamental aspect of quality of life and one of the essential goals of services for people with intellectual disabilities, yet there is no agreed way of measuring community participation. METHOD Two systematic searches were performed across eight electronic databases to identify measures of community participation and identify validation studies for each measure. Measures were included if they were developed for adults with intellectual disability, measured extent of participation and had published information regarding content and psychometric properties. Each measure was evaluated on the basis of psychometric properties and in relation to coverage of nine domains of community participation from the International Classification of Functioning, Disability and Health(ICF). RESULTS Eleven measures were selected with the quality rating scores varying substantially ranging from 2 to 11 of a possible 16. CONCLUSIONS The majority of measures were not sufficiently psychometrically tested. Findings suggest a need for the development of a psychometrically robust instrument.
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Affiliation(s)
| | | | - Fergal Jones
- Canterbury Christchurch University, Canterbury, UK
| | - Peter Baker
- Tizard Centre, University of Kent, Canterbury, UK
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Prosser T, Gee KA, Jones F. A meta-analysis of effectiveness of E-interventions to reduce alcohol consumption in college and university students. J Am Coll Health 2018; 66:292-301. [PMID: 29452058 DOI: 10.1080/07448481.2018.1440579] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To evaluate the effectiveness and moderators of E-Interventions versus assessment only (AO) controls in the reduction of alcoholic drinks per week (DPW) in university students. STUDY DESIGN AND METHODS Cochrane library, CINAEL, ERIC, MEDLINE, PsycINFO, PubMed, and Web of Science were searched up to June 2017. Studies were included if they were: an RCT, assessed the effectiveness of E-Interventions at reducing DPW, and employed university/college students. 23 studies (N = 7,614) were included and quality was assessed using the JADAD scale. RESULTS Weighted mean effect sizes were calculated using random-effects models. These showed a small, significant effect of E-Interventions at reducing the number of alcoholic DPW. Moderator analysis found a significant advantage for web-based personalised feedback interventions compared to other E-Interventions. CONCLUSIONS E-Interventions show a small, significant effect at reducing mean alcoholic DPW. Personalised feedback E-Interventions showed the strongest effect.
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Affiliation(s)
- Tom Prosser
- a Canterbury Christ Church University, School of Psychology , Canterbury , UK
| | - Kate Ann Gee
- a Canterbury Christ Church University, School of Psychology , Canterbury , UK
| | - Fergal Jones
- b Canterbury Christ Church University, Salomons Centre for Applied Psychology , Tunbridge Wells , UK
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Ramdharry G, Jones F, Holmes S, James N, Booth S, Reilly M, Hanna M. Neuro-muscular bridges: development of an evidence based selfmanagement resource for people with neuro-muscular diseases. Neuromuscul Disord 2018. [DOI: 10.1016/s0960-8966(18)30412-7] [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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Grasselli J, Elez E, Caratù G, Matito J, Santos C, Macarulla T, Vidal J, Garcia M, Viéitez JM, Paéz D, Falcó E, Lopez Lopez C, Aranda E, Jones F, Sikri V, Nuciforo P, Fasani R, Tabernero J, Montagut C, Azuara D, Dienstmann R, Salazar R, Vivancos A. Concordance of blood- and tumor-based detection of RAS mutations to guide anti-EGFR therapy in metastatic colorectal cancer. Ann Oncol 2018; 28:1294-1301. [PMID: 28368441 PMCID: PMC5834108 DOI: 10.1093/annonc/mdx112] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Circulating tumor DNA (ctDNA) is a potential source for tumor genome analysis. We explored the concordance between the mutational status of RAS in tumor tissue and ctDNA in metastatic colorectal cancer (mCRC) patients to establish eligibility for anti-epidermal growth factor receptor (EGFR) therapy. Patients and methods A prospective-retrospective cohort study was carried out. Tumor tissue from 146 mCRC patients was tested for RAS status with standard of care (SoC) PCR techniques, and Digital PCR (BEAMing) was used both in plasma and tumor tissue. Results ctDNA BEAMing RAS testing showed 89.7% agreement with SoC (Kappa index 0.80; 95% CI 0.71 − 0.90) and BEAMing in tissue showed 90.9% agreement with SoC (Kappa index 0.83; 95% CI 0.74 − 0.92). Fifteen cases (10.3%) showed discordant tissue-plasma results. ctDNA analysis identified nine cases of low frequency RAS mutations that were not detected in tissue, possibly due to technical sensitivity or heterogeneity. In six cases, RAS mutations were not detected in plasma, potentially explained by low tumor burden or ctDNA shedding. Prediction of treatment benefit in patients receiving anti-EGFR plus irinotecan in second- or third-line was equivalent if tested with SoC PCR and ctDNA. Forty-eight percent of the patients showed mutant allele fractions in plasma below 1%. Conclusions Plasma RAS determination showed high overall agreement and captured a mCRC population responsive to anti-EGFR therapy with the same predictive level as SoC tissue testing. The feasibility and practicality of ctDNA analysis may translate into an alternative tool for anti-EGFR treatment selection.
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Affiliation(s)
- J Grasselli
- Department of Medical Oncology, Vall d'Hebron Institute of Oncology, Barcelona.,Department of Medical Oncology, Catalan Institute of Oncology, Universitat de Barcelona, L'Hospitalet, Barcelona
| | - E Elez
- Department of Medical Oncology, Vall d'Hebron Institute of Oncology, Barcelona.,Department of Medical Oncology, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona
| | - G Caratù
- Cancer Genomics Group, Vall d'Hebron Institute of Oncology, Barcelona
| | - J Matito
- Cancer Genomics Group, Vall d'Hebron Institute of Oncology, Barcelona
| | - C Santos
- Department of Medical Oncology, Catalan Institute of Oncology, Universitat de Barcelona, L'Hospitalet, Barcelona
| | - T Macarulla
- Department of Medical Oncology, Vall d'Hebron Institute of Oncology, Barcelona.,Department of Medical Oncology, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona
| | - J Vidal
- Department of Medical Oncology, Del Mar University Hospital, Barcelona
| | - M Garcia
- Department of Medical Oncology, Catalan Institute of Oncology, Universitat de Barcelona, L'Hospitalet, Barcelona
| | - J M Viéitez
- Department of Medical Oncology, Asturias University Hospital, Oviedo
| | - D Paéz
- Department of Medical Oncology, Santa Creu i Sant Pau University Hospital, Barcelona
| | - E Falcó
- Department of Medical Oncology, Son Llatzer University Hospital, Palma de Mallorca
| | - C Lopez Lopez
- Department of Medical Oncology, Marques de Valdecilla University Hospital, Santander
| | - E Aranda
- Department of Medical Oncology, Reina Sofía University Hospital, Córdoba, Spain
| | - F Jones
- Sysmex Inostics, Mundelein, USA
| | - V Sikri
- Sysmex Inostics, Mundelein, USA
| | - P Nuciforo
- Molecular Oncology Group, Vall d'Hebron Institute of Oncology, Barcelona
| | - R Fasani
- Molecular Oncology Group, Vall d'Hebron Institute of Oncology, Barcelona
| | - J Tabernero
- Department of Medical Oncology, Vall d'Hebron Institute of Oncology, Barcelona.,Department of Medical Oncology, Vall d'Hebron University Hospital, Universitat Autònoma de Barcelona, Barcelona
| | - C Montagut
- Department of Medical Oncology, Del Mar University Hospital, Barcelona
| | - D Azuara
- Traslational Research Laboratory, Catalan Institute of Oncology, L'Hospitalet, Barcelona
| | - R Dienstmann
- Department of Medical Oncology, Vall d'Hebron Institute of Oncology, Barcelona.,Oncology Data Science Group, Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | - R Salazar
- Department of Medical Oncology, Catalan Institute of Oncology, Universitat de Barcelona, L'Hospitalet, Barcelona
| | - A Vivancos
- Cancer Genomics Group, Vall d'Hebron Institute of Oncology, Barcelona
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15
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Vidal J, Muinelo L, Dalmases A, Jones F, Edelstein D, Iglesias M, Orrillo M, Abalo A, Rodríguez C, Brozos E, Vidal Y, Candamio S, Vázquez F, Ruiz J, Guix M, Visa L, Sikri V, Albanell J, Bellosillo B, López R, Montagut C. Plasma ctDNA RAS mutation analysis for the diagnosis and treatment monitoring of metastatic colorectal cancer patients. Ann Oncol 2018; 28:1325-1332. [PMID: 28419195 PMCID: PMC5834035 DOI: 10.1093/annonc/mdx125] [Citation(s) in RCA: 247] [Impact Index Per Article: 41.2] [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] [Indexed: 02/06/2023] Open
Abstract
Background RAS assessment is mandatory for therapy decision in metastatic colorectal cancer (mCRC) patients. This determination is based on tumor tissue, however, genotyping of circulating tumor (ct)DNA offers clear advantages as a minimally invasive method that represents tumor heterogeneity. Our study aims to evaluate the use of ctDNA as an alternative for determining baseline RAS status and subsequent monitoring of RAS mutations during therapy as a component of routine clinical practice. Patients and methods RAS mutational status in plasma was evaluated in mCRC patients by OncoBEAM™ RAS CRC assay. Concordance of results in plasma and tissue was retrospectively evaluated. RAS mutations were also prospectively monitored in longitudinal plasma samples from selected patients. Results Analysis of RAS in tissue and plasma samples from 115 mCRC patients showed a 93% overall agreement. Plasma/tissue RAS discrepancies were mainly explained by spatial and temporal tumor heterogeneity. Analysis of clinico-pathological features showed that the site of metastasis (i.e. peritoneal, lung), the histology of the tumor (i.e. mucinous) and administration of treatment previous to blood collection negatively impacted the detection of RAS in ctDNA. In patients with baseline mutant RAS tumors treated with chemotherapy/antiangiogenic, longitudinal analysis of RAS ctDNA mirrored response to treatment, being an early predictor of response. In patients RAS wt, longitudinal monitoring of RAS ctDNA revealed that OncoBEAM was useful to detect emergence of RAS mutations during anti-EGFR treatment. Conclusion The high overall agreement in RAS mutational assessment between plasma and tissue supports blood-based testing with OncoBEAM™ as a viable alternative for genotyping RAS of mCRC patients in routine clinical practice. Our study describes practical clinico-pathological specifications to optimize RAS ctDNA determination. Moreover, OncoBEAM™ is useful to monitor RAS in patients undergoing systemic therapy to detect resistance and evaluate the efficacy of particular treatments.
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Affiliation(s)
- J Vidal
- Cancer Research Program, FIMIM Hospital del Mar, Barcelona, Spain.,Medical Oncology Department, Hospital del Mar, Barcelona
| | - L Muinelo
- Traslational Medical Oncology Group (Oncomet)/Liquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS) CIBERONC, Santiago de Compostela
| | - A Dalmases
- Pathology Department, Hospital del Mar, Barcelona
| | - F Jones
- Sysmex Inostics Inc., Mundelein, USA
| | | | - M Iglesias
- Cancer Research Program, FIMIM Hospital del Mar, Barcelona, Spain.,Pathology Department, Hospital del Mar, Barcelona
| | - M Orrillo
- Medical Oncology Department, Hospital del Mar, Barcelona
| | - A Abalo
- Traslational Medical Oncology Group (Oncomet)/Liquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS) CIBERONC, Santiago de Compostela
| | - C Rodríguez
- Traslational Medical Oncology Group (Oncomet)/Liquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS) CIBERONC, Santiago de Compostela
| | - E Brozos
- Traslational Medical Oncology Group (Oncomet)/Liquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS) CIBERONC, Santiago de Compostela
| | - Y Vidal
- Traslational Medical Oncology Group (Oncomet)/Liquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS) CIBERONC, Santiago de Compostela
| | - S Candamio
- Traslational Medical Oncology Group (Oncomet)/Liquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS) CIBERONC, Santiago de Compostela
| | - F Vázquez
- Traslational Medical Oncology Group (Oncomet)/Liquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS) CIBERONC, Santiago de Compostela
| | - J Ruiz
- Traslational Medical Oncology Group (Oncomet)/Liquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS) CIBERONC, Santiago de Compostela
| | - M Guix
- Medical Oncology Department, Hospital del Mar, Barcelona
| | - L Visa
- Medical Oncology Department, Hospital del Mar, Barcelona
| | - V Sikri
- Sysmex Inostics Inc., Mundelein, USA
| | - J Albanell
- Cancer Research Program, FIMIM Hospital del Mar, Barcelona, Spain.,Medical Oncology Department, Hospital del Mar, Barcelona.,Universitat Pompeu Fabra, Barcelona, Spain
| | - B Bellosillo
- Medical Oncology Department, Hospital del Mar, Barcelona.,Traslational Medical Oncology Group (Oncomet)/Liquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS) CIBERONC, Santiago de Compostela
| | - R López
- Traslational Medical Oncology Group (Oncomet)/Liquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), Complexo Hospitalario Universitario de Santiago de Compostela (SERGAS) CIBERONC, Santiago de Compostela
| | - C Montagut
- Cancer Research Program, FIMIM Hospital del Mar, Barcelona, Spain.,Medical Oncology Department, Hospital del Mar, Barcelona
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16
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Cavanagh K, Churchard A, O'Hanlon P, Mundy T, Votolato P, Jones F, Gu J, Strauss C. A Randomised Controlled Trial of a Brief Online Mindfulness-Based Intervention in a Non-clinical Population: Replication and Extension. Mindfulness (N Y) 2018; 9:1191-1205. [PMID: 30100934 PMCID: PMC6061247 DOI: 10.1007/s12671-017-0856-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Building on previous research, this study compared the effects of two brief, online mindfulness-based interventions (MBIs; with and without formal meditation practice) and a no intervention control group in a non-clinical sample. One hundred and fifty-five university staff and students were randomly allocated to a 2-week, self-guided, online MBI with or without mindfulness meditation practice, or a wait list control. Measures of mindfulness, perceived stress, perseverative thinking and anxiety/depression symptoms within were administered before and after the intervention period. Intention to treat analysis identified significant differences between groups on change over time for all measured outcomes. Participation in the MBIs was associated with significant improvements in all measured domains (all ps < 0.05), with effect sizes in the small to medium range (0.25 to 0.37, 95% CIs 0.11 to 0.56). No significant changes on these measures were found for the control group. Change in perseverative thinking was found to mediate the relationship between condition and improvement on perceived stress and anxiety/depression symptom outcomes. Contrary to our hypotheses, no differences between the intervention conditions were found. Limitations of the study included reliance on self-report data, a relatively high attrition rate and absence of a longer-term follow-up. This study provides evidence in support of the feasibility and effectiveness of brief, self-guided MBIs in a non-clinical population and suggests that reduced perseverative thinking may be a mechanism of change. Our findings provide preliminary evidence for the effectiveness of a mindfulness psychoeducation condition, without an invitation to formal mindfulness meditation practice. Further research is needed to confirm and better understand these results and to test the potential of such interventions.
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Affiliation(s)
- Kate Cavanagh
- 1School of Psychology, University of Sussex, Falmer, East Sussex BN1 9QH UK
| | - Alasdair Churchard
- 1School of Psychology, University of Sussex, Falmer, East Sussex BN1 9QH UK
| | - Puffin O'Hanlon
- 1School of Psychology, University of Sussex, Falmer, East Sussex BN1 9QH UK
| | - Thomas Mundy
- 1School of Psychology, University of Sussex, Falmer, East Sussex BN1 9QH UK
| | - Phoebe Votolato
- 1School of Psychology, University of Sussex, Falmer, East Sussex BN1 9QH UK
| | - Fergal Jones
- 2Sussex Partnership NHS Foundation Trust, Hove, BN3 7HZ UK.,3School of Psychology, Politics and Sociology, Canterbury Christ Church University, Kent, UK
| | - Jenny Gu
- 1School of Psychology, University of Sussex, Falmer, East Sussex BN1 9QH UK
| | - Clara Strauss
- 1School of Psychology, University of Sussex, Falmer, East Sussex BN1 9QH UK.,2Sussex Partnership NHS Foundation Trust, Hove, BN3 7HZ UK
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17
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Stach R, Krebs P, Jones F, Mizaikoff B. Observing non-classical crystallisation processes in gypsum via infrared attenuated total reflectance spectroscopy. CrystEngComm 2017. [DOI: 10.1039/c6ce01787h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Jones F, Thibon P, Guyot M, Molin A, Jeanne-Pasquier C, Guillois B, Benoist G, Dreyfus M. Practice of pathological examinations in stillbirths: A 10-year retrospective study. J Gynecol Obstet Hum Reprod 2016; 46:61-67. [PMID: 28403958 DOI: 10.1016/j.jgyn.2016.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 02/16/2016] [Revised: 05/28/2016] [Accepted: 06/07/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVES To describe the practice of fetal and placental pathological examinations in a large series of spontaneous stillbirths over 10 years. MATERIALS AND METHODS Inclusion of cases recorded by the Lower Normandy Regional Fetal-Infant Mortality Observatory (observatoire régional de mortalité fœto-infantile) from January 1, 2005 to December 31, 2014. The possible cause of death was coded in accordance with the ReCoDe classification system. RESULTS Seven hundred and forty-four cases were recorded. The placental examinations were conducted in 93.7% of cases (CI95%[91.7-95.3]), increasing over the study period, and an autopsy was proposed in 87.2% of cases (CI95%[84.8-89.6]). Autopsy was conducted less frequently during the most recent period, with parental refusal increasing over time. In multivariate analysis, no factor was associated with a higher frequency of placental examinations, while autopsy was proposed more often under certain circumstances: less than 4 pregnancies (P<10-2), birth weight from 1000 to 1500 grams (P=0.05), singleton (P<10-2), clinical context not suggesting a cause (P<10-3), type 1 or 2 maternity ward (P<10-2), antepartum death (P<10-3). CONCLUSION Placental analysis was almost systematically realized, as suggested by international guidelines. Fetal autopsy was often performed, however only in some specific circumstances. New practice guidance to realize customized fetal autopsies appear to be necessary.
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Affiliation(s)
- F Jones
- Perinatal Network, CHU de Caen, 14000 Caen, France; Gynecology-Obstetrics Unit, CHU de Caen, 14000 Caen, France.
| | - P Thibon
- Perinatal Network, CHU de Caen, 14000 Caen, France
| | - M Guyot
- Perinatal Network, CHU de Caen, 14000 Caen, France; Gynecology-Obstetrics Unit, CHU de Caen, 14000 Caen, France; Pathological Anatomy Unit, CHU de Caen, 14000 Caen, France
| | - A Molin
- Cytogenetics Unit, CHU de Caen, 14000 Caen, France; Neonatal Unit, CHU de Caen, 14000 Caen, France; Pathological Anatomy Unit, CHU de Caen, 14000 Caen, France
| | - C Jeanne-Pasquier
- Perinatal Network, CHU de Caen, 14000 Caen, France; Pathological Anatomy Unit, CHU de Caen, 14000 Caen, France
| | - B Guillois
- Perinatal Network, CHU de Caen, 14000 Caen, France; Medical School, University of Caen Lower-Normandy, 14000 Caen, France; Neonatal Unit, CHU de Caen, 14000 Caen, France
| | - G Benoist
- Perinatal Network, CHU de Caen, 14000 Caen, France; Gynecology-Obstetrics Unit, CHU de Caen, 14000 Caen, France; Neonatal Unit, CHU de Caen, 14000 Caen, France
| | - M Dreyfus
- Perinatal Network, CHU de Caen, 14000 Caen, France; Gynecology-Obstetrics Unit, CHU de Caen, 14000 Caen, France; Neonatal Unit, CHU de Caen, 14000 Caen, France
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19
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Grasselli J, Elez E, Caratù G, Matito J, Santos C, Macarulla T, Vidal J, Garcia M, Viéitez J, Paéz D, Falcó E, Lopez CL, Aranda E, Jones F, Sikri V, Nuciforo P, Dienstmann R, Montagut C, Tabernero J, Azuara D, Salazar R, Vivancos A. O-024 Circulating tumor DNA extended RAS mutational analysis as a surrogate of mutational status of tumor samples in metastatic colorectal cancer and its impact on patient selection for anti-EGFR therapy. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw198.24] [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: 11/12/2022] Open
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20
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McKeown M, Chandley M, Jones F, Wright K, Duxbury J, Foy P. Explorations of Cooperation and Recalcitrance in Secure Mental Health Hospitals. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.1679] [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: 11/30/2022] Open
Abstract
This paper reports on the findings of three qualitative research studies undertaken within, respectively, medium and low secure units in one UK region, and a high secure mental health hospital in England (UK). The first study investigated alliance based involvement practices. The second explored service user and staff views and sense making of the notion of recovery. The third study is ongoing into service user and staff experiences of extreme coercive measures, such as forms of restraint and long-term seclusion or segregation. All studies utilised either semi-structured interviews or focus groups. All data was subject to thematic analysis.Selected and emergent themes include:– the importance of relationships and communication; security first; involvement as pacification;– different understandings of recovery; the importance of meaningful occupation; staff-service user relationships; recovery journeys and dialogue with the past; and recovery as personal responsibility;– good and bad coercion; cooperation, resistance and recalcitrance; and alternatives to coercion.Findings suggest that cooperation is largely framed by services in terms of compliance with a bio-medical model. The impact of the secure environment, whilst ever-present, is not an absolute constraint on the realisation of recovery or involvement objectives. The availability of extreme coercive measures raises some seemingly paradoxical understandings from both service user and staff perspectives. Critical social theory is drawn on to illuminate the tensions between cooperation and recalcitrance and suggest further exploration of their respective legitimacy.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Jones F, Edelstein D, Wichner K, Ross C, Holtrup F. 2012 Concordance of RAS mutation status in metastatic CRC patients bycomparison of results from circulating tumor DNA and tissue-based RAS testing. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30936-4] [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: 11/27/2022]
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22
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Scott R, Dooley S, Lewis W, Meldrum C, Pockney P, Draganic B, Smith S, Jones F, Hewitt C, Phillimore H, Lucas A, Shi E, Namdarian K, Chan T, Acosta D, Chan SP, Fox S. P-273 Concordance of RAS mutation status in CRC patients by comparison of results from circulating tumour DNA and tissue-based testing. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.270] [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: 11/13/2022] Open
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24
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Crosby A, Soon E, Jones F, Southwood M, Haghighat L, Toshner M, Raine T, Horan I, Yang P, Davenport A, Moore S, Wright P, Dunne D, Morrell N. S34 Bmpr-ii Deficiency Leads To An Increase In Lung Egg Deposition, Pulmonary Vascular Remodelling And An Abnormal Liver Vasculature In Mice Chronically Infected With S. Mansoni. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.40] [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: 11/04/2022]
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25
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Lever Taylor B, Strauss C, Cavanagh K, Jones F. The effectiveness of self-help mindfulness-based cognitive therapy in a student sample: a randomised controlled trial. Behav Res Ther 2014; 63:63-9. [PMID: 25302763 DOI: 10.1016/j.brat.2014.09.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 09/12/2014] [Accepted: 09/16/2014] [Indexed: 10/24/2022]
Abstract
Mindfulness-based cognitive therapy (MBCT) involves approximately twenty hours of therapist contact time and is not universally available. MBCT self-help (MBCT-SH) may widen access but little is known about its effectiveness. This paper presents a randomised controlled trial (RCT) of MBCT-SH for students. Eighty students were randomly assigned to an eight-week MBCT-SH condition or a wait-list control. ANOVAs showed significant group by time interactions in favour of MBCT-SH on measures of depression, anxiety, stress, satisfaction with life, mindfulness and self-compassion. Post-intervention between-group effect sizes ranged from Cohen's d = 0.22 to 1.07. Engagement with MBCT-SH was high: participants engaged in mindfulness practice a median of two to three times a week and 85% read at least half the intervention book. Only 5% of participants dropped out. This is the first published RCT of MBCT-SH and benefits were found relative to a control group. MBCT-SH has the potential to be a low-cost, readily available and highly acceptable intervention. Future research should include an active control condition and explore whether findings extend to clinical populations.
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Affiliation(s)
| | - Clara Strauss
- School of Psychology, University of Sussex, Falmer, UK; Sussex Partnership NHS Foundation Trust, UK.
| | - Kate Cavanagh
- School of Psychology, University of Sussex, Falmer, UK.
| | - Fergal Jones
- Sussex Partnership NHS Foundation Trust, UK; Canterbury Christ Church University, Canterbury, UK.
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26
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Cavanagh K, Strauss C, Forder L, Jones F. Can mindfulness and acceptance be learnt by self-help?: a systematic review and meta-analysis of mindfulness and acceptance-based self-help interventions. Clin Psychol Rev 2014; 34:118-29. [PMID: 24487343 DOI: 10.1016/j.cpr.2014.01.001] [Citation(s) in RCA: 172] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 12/02/2013] [Accepted: 01/02/2014] [Indexed: 12/13/2022]
Abstract
There is growing evidence that mindfulness and acceptance-based interventions have positive consequences for psychological and physical health. The most well-established of these interventions typically involve relatively large resource commitments, in terms of both the provider and participant. A number of recent studies have begun to explore whether the benefits of such interventions can be generalised to less intensive methods. Methods include pure and guided self-help utilising resources such as books and workbooks, computer programmes and applications and audio-visual materials. This paper presents a systematic review and meta-analysis of studies that have evaluated the effectiveness and acceptability of low-intensity interventions including mindfulness and acceptance-based components. Fifteen RCTs (7 ACT-based, 4 mindfulness-based and 4 multi-component interventions including elements of mindfulness and/or acceptance) were identified and reviewed. Interventions that included mindfulness and/or acceptance-based components produced significant benefits in comparison to control conditions on measures of mindfulness/acceptance, depression and anxiety with small to medium effect sizes. Engagement with the self-help interventions varied but on average two-thirds of participants completed post-intervention measures. Emerging research into low-intensity mindfulness and acceptance-based interventions is hopeful. Recommendations for research and practice are presented.
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Affiliation(s)
- Kate Cavanagh
- School of Psychology, University of Sussex, Falmer, East Sussex BN1 9QH, UK; Sussex Mindfulness Centre, Research and Development Directorate, Hove BN3 7HZ, UK.
| | - Clara Strauss
- Sussex Partnership NHS Foundation Trust, Hove BN3 7HZ, UK; Sussex Mindfulness Centre, Research and Development Directorate, Hove BN3 7HZ, UK
| | - Lewis Forder
- School of Psychology, University of Sussex, Falmer, East Sussex BN1 9QH, UK
| | - Fergal Jones
- Sussex Partnership NHS Foundation Trust, Hove BN3 7HZ, UK; Sussex Mindfulness Centre, Research and Development Directorate, Hove BN3 7HZ, UK; Department of Psychology, Politics and Sociology, Canterbury Christ Church University, Kent, UK
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Riazi A, Aspden T, Jones F. Stroke Self-efficacy Questionnaire: A Rasch-refined measure of confidence post stroke. J Rehabil Med 2014; 46:406-12. [DOI: 10.2340/16501977-1789] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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28
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Crosby A, Soon E, Jones F, Southwood M, Haghighat L, Toshner M, Raine T, Horan I, Yang P, Davenport A, Dunne DW, Morrell NW. S140 BMPR-II deficiency leads to an increase in egg deposition and cytokine release in the lungs of mice chronically infected with schistosomiasis. Thorax 2013. [DOI: 10.1136/thoraxjnl-2013-204457.147] [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: 11/04/2022]
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29
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Jones F. A response from the manufacturers. Anaesthesia 2013; 68:1284. [PMID: 24219269 DOI: 10.1111/anae.12509] [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: 11/30/2022]
Affiliation(s)
- F Jones
- Smiths Medical, St. Paul, Minnesota, USA.
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Hilton K, Jones F, Harmon S, Cropper J. Adolescents' experiences of receiving and living with sequential cochlear implants: an interpretative phenomenological analysis. J Deaf Stud Deaf Educ 2013; 18:513-531. [PMID: 23744061 DOI: 10.1093/deafed/ent025] [Citation(s) in RCA: 4] [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: 06/02/2023]
Abstract
There is currently a unique opportunity to examine the experiences of young people who receive a second sequential cochlear implant (SCI), after only having had 1 cochlear implant (CI) for most of their lives. Eleven young people who had opted to receive an SCI were interviewed. Interpretative phenomenological analysis resulted in the identification of 6 master themes. Most participants enjoyed improved confidence and social well-being following their SCI and felt that 2 CIs were superior to 1. The majority identified themselves as hearing and deaf, but not culturally Deaf, as they strived to live in the hearing world. However, this was not without challenges and many young people experienced feelings of difference in the hearing world. These findings have clinical implications in terms of the role of clinical psychologists and other mental health professionals in CI clinics and in providing information to families making decisions about CIs. These findings add to the emergent deaf identity development literature in young people with CIs.
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Affiliation(s)
- Kristina Hilton
- Department of Applied Psychology, Canterbury Christ Church University, Salomons Campus, Broomhill Road, Tunbridge Wells, Kent TN3 0TG, UK.
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Cavanagh K, Strauss C, Cicconi F, Griffiths N, Wyper A, Jones F. A randomised controlled trial of a brief online mindfulness-based intervention. Behav Res Ther 2013; 51:573-8. [PMID: 23872699 DOI: 10.1016/j.brat.2013.06.003] [Citation(s) in RCA: 173] [Impact Index Per Article: 15.7] [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: 02/27/2013] [Revised: 05/22/2013] [Accepted: 06/18/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVES There is growing evidence that mindfulness has positive consequences for both psychological and physical health in both clinical and non-clinical populations. The potential benefits of mindfulness underpin a range of therapeutic intervention approaches designed to increase mindfulness in both clinical and community contexts. Self-guided mindfulness-based interventions may be a way to increase access to the benefits of mindfulness. This study explored whether a brief, online, mindfulness-based intervention can increase mindfulness and reduce perceived stress and anxiety/depression symptoms within a student population. METHOD One hundred and four students were randomly allocated to either immediately start a two-week, self-guided, online, mindfulness-based intervention or a wait-list control. Measures of mindfulness, perceived stress and anxiety/depression were administered before and after the intervention period. RESULTS Intention to treat analysis identified significant group by time interactions for mindfulness skills, perceived stress and anxiety/depression symptoms. Participation in the intervention was associated with significant improvements in all measured domains, where no significant changes on these measures were found for the control group. CONCLUSIONS This provides evidence in support of the feasibility and effectiveness of shorter self-guided mindfulness-based interventions. The limitations and implications of this study for clinical practice are discussed.
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Affiliation(s)
- Kate Cavanagh
- School of Psychology, University of Sussex, Falmer, East Sussex BN1 9QH, UK.
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Le Brun C, Beucher G, Morello R, Jones F, Lamendour N, Dreyfus M. [Failure of vacuum extractions: risk factors, maternal and fetal issues]. ACTA ACUST UNITED AC 2013; 42:693-702. [PMID: 23702434 DOI: 10.1016/j.jgyn.2013.04.003] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 03/28/2013] [Accepted: 04/11/2013] [Indexed: 11/24/2022]
Abstract
OBJECTIVES Determine cases which are at risk of vacuum extraction failure as well as maternal and foetal issues depending on the delivery outcome. MATERIAL AND METHODS It was a retrospective study comparing 147 vacuum failures, from January 2002 to December 2010, with a control group randomly composed of 526 successful vacuum extractions. The outcomes were high risk situations of vacuum failure, maternal and neonatal morbidity depending on the delivery method (caesarean section or other instrumental extraction). RESULTS The global vacuum failure rate was 3.3 %. During labour, we identified several situations at risk of vacuum extraction failure: cephalhematomas prior to extraction (P<0.001), deflexion attitude (P<0.001), posterior variety (P<0.001), entering above the inlet strait (P<0.001), occiput posterior delivery (P<0.001), fœtal weight greater than 3500g (P=0.023). Neonatals consequency were more Apgar score below 7 at five minutes life (P=0.007), fœtal acidosis (pH<7,20) (P=0.032), neonatal resuscitation (P<0.001), and craniofacial damages (P<0.001). CONCLUSION Many dystocic situations occurring during labour require intense care when practicing vacuum extraction since they more frequently result in failure. In case of vacuum extraction failure, immediate adaptation to extra-uterine life seems to be more difficult for new-born babies.
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Affiliation(s)
- C Le Brun
- Service de gynécologie-obstétrique et médecine de la reproduction, CHU de Caen, avenue de la Côte-de-Nacre, 14033 Caen cedex, France.
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Jones F. Self-management: is it time for a new direction in rehabilitation and post stroke care? Panminerva Med 2013; 55:79-86. [PMID: 23474665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Stroke is traditionally thought of as an acute condition and most rehabilitation is provided in the first six months poststroke. To date there has been minimal focus on strategies which could support people in the longer term and manage the transition towards successful adjustment and self-management. Stroke self-management programs whilst rare are now starting to emerge but while the feasibility and acceptability of delivering stroke self-management programs looks to be promising, there are minimal findings beyond phase II trials. A self-management program is a complex intervention and a carefully staged approach to research is required, one which addresses the issues around implementation and the skills required by those delivering the intervention. In addition there are a number of questions relating to maintenance of self-management skills beyond attendance at programs or after rehabilitation. Currently the sustainability of any impact from these programs is uncertain and it is unclear which are the best methods to enhance self-management skills over a longer time period. More work is required in order to develop and test different forms of support which could range from a simple goal setting interventions to more structured self-management programs delivered either as a group or individualized intervention.
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Affiliation(s)
- F Jones
- School of Rehabilitation Sciences, Faculty of Health and Social Care, St George's University of London & Kingston University, London, UK.
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Bitter M, Hill KW, Delgado-Aparicio LF, Pablant NA, Scott S, Jones F, Beiersdorfer P, Wang E, del Rio MS, Caughey TA, Brunner J. A new scheme for stigmatic x-ray imaging with large magnification. Rev Sci Instrum 2012; 83:10E527. [PMID: 23127034 DOI: 10.1063/1.4739069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper describes a new x-ray scheme for stigmatic imaging. The scheme consists of one convex spherically bent crystal and one concave spherically bent crystal. The radii of curvature and Bragg reflecting lattice planes of the two crystals are properly matched to eliminate the astigmatism, so that the conditions for stigmatic imaging are met for a particular wavelength. The magnification is adjustable and solely a function of the two Bragg angles or angles of incidence. Although the choice of Bragg angles is constrained by the availability of crystals, this is not a severe limitation for the imaging of plasmas, since a particular wavelength can be selected from the bremsstrahlung continuum. The working principle of this imaging scheme has been verified with visible light. Further tests with x rays are planned for the near future.
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Affiliation(s)
- M Bitter
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
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Crosby A, Soon E, Jones F, Southwood M, Dunmore B, Dunne D, Morrell NW. S98 BMPR-II mutations do not predispose to pulmonary arterial hypertension in a mouse model of schistosomiasis. Thorax 2011. [DOI: 10.1136/thoraxjnl-2011-201054b.98] [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: 11/04/2022]
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van Noord JA, Buhl R, LaForce C, Martin C, Jones F, Dolker M, Overend T. QVA149 demonstrates superior bronchodilation compared with indacaterol or placebo in patients with chronic obstructive pulmonary disease. Thorax 2010; 65:1086-91. [DOI: 10.1136/thx.2010.139113] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [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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Abstract
This study, conducted at the end of a UK heatwave, used qualitative and quantitative questionnaire measures to investigate sun protection in the context of the potentially conflicting attractions of sun exposure. It examined attitudes to the good weather, beliefs about the benefits and harmful effects of the sun and perceptions of risk amongst a sample of students in the UK. Participants could think of more benefits than harmful effects of the sun for both their health and appearance. Most enjoyed sunbathing, protected themselves inadequately and did not intend to change this behaviour. Those who knew someone who had suffered skin cancer, who perceived higher risk and who wrote more about the harmful effects of skin cancer on their appearance (but not their health) were more likely to engage in skin protective behaviours.
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Jenner EA, Watson PWB, Miller L, Jones F, Scott GM. Explaining hand hygiene practice: An extended application of the Theory of Planned Behaviour. PSYCHOL HEALTH MED 2010. [DOI: 10.1080/13548500220139412] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Thor A, Fan Z, Yang X, Esteva F, Jones F, Edgerton S, Lind S, Liu B. Metformin Enhances Trastuzumab Efficacy and Overcomes Resistance in HER2 Type Breast Cancer Cells. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-1133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: HER2 alterations occur in one-fourth of breast cancers and are associated with an aggressive tumor phenotype. The anti-HER2 agent trastuzumab reduces cell proliferation, angiogenesis, DNA repair and induces antibody-dependent cellular cytotoxicity. Objective response rates and median duration of response for eligible patients given trastuzumab alone is low (12-34% and 9 months respectively), hence, it is administered in combination with other agents. Mechanisms of trastuzumab resistance include: altered receptor antibody interactions, increased signaling through other EGFR type I growth factor receptors, modulation of p27 kip1 and increased insulin-like growth factor 1 receptor (IGF-1) signaling. We have reported that metformin inhibits HER2 expression, tyrosine kinase activity (phosphorylated HER2 at both auto- and Src- phosphorylation sites), AKT/mTOR signaling, Cyclin D1 and E2F1 with G1 arrest in HER2 overexpressing breast cancer cells. We sought to determine if metformin would enhance trastuzumab associated cytotoxicity and modulate acquired resistance in vitro.Methods: We used trastuzumab sensitive (SKBR3, BT474) and resistant cell lines (BT-474/HR20, SKBR3/P2, MCF-7/713 and MCF-7/HER2Δ16) to study the effects of metformin, metformin + trastuzumab and trastuzumab alone. Assays included MTS for proliferation, clonogenicity studies, Western blots, and pull down experiments with Western blots.Results: Trastuzumab sensitive breast cancer cells were less sensitive to metformin alone, compared to trastuzumab resistant HER2 subtype breast cancer cell lines. Trastuzumab sensitive cells showed enhanced growth and clonogenicity inhibition when treated by both metformin and trastuzumab. At the molecular level, these bi-treated cells showed decreases in HER2/pHER2, erbB3/perbB3, and inactivation of AKT and MAPk signaling. Metformin as low as 20mM increased the efficacy of trastuzumab. All HER2 resistant cell lines showed higher levels of IGF1R and HER2/IGF1R complexes, as compared to sensitive parental lines. In these resistant lines Metformin decreased cell proliferation and clonogenicity, HER2/IGF1R complexes (identified through pull down experiments) and protein expression of HER2/pHER2, erbB3/perbB3, IGF1R/pIGF1R as well as downstream signaling via Akt and IGF1 pathways. Metformin overcame trastuzumab resistance as demonstrated by growth and clonogenicity assays.Conclusions: HER2 amplified trastuzumab resistant breast cancer cells showed greater sensitivity to metformin than sensitive parental lines. Metformin reversed trastuzumab resistance and decreased HER2:IGF1R complexes, HER2/pHER2 and IGF1R expression, whereas sensitive parental lines showed no complex formation. These preclinical data suggest a combination of metformin and trastuzumab may have clinical benefit, improving the efficacy and reducing the emergence of or reversing trastuzumab resistance in HER2 positive breast cancer patients.Herceptin graciously provided by Genentech
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 1133.
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Affiliation(s)
- A. Thor
- 1University of Colorado Denver, CO,
| | - Z. Fan
- 1University of Colorado Denver, CO,
| | - X. Yang
- 2University of Oklahoma Health Sciences Center, OK,
| | - F. Esteva
- 3The University of Texas M.D. Anderson Cancer Center, TX,
| | | | | | - S. Lind
- 5University of Colorado Denver, CO,
| | - B. Liu
- 1University of Colorado Denver, CO,
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Bitter M, Hill KW, Jones F, Scott S. Non-astigmatic imaging with matched pairs of spherically bent crystals or reflectors. J Xray Sci Technol 2009; 17:153-160. [PMID: 19696468 DOI: 10.3233/xst-2009-0219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This paper defines the exact conditions for the application of a previously proposed, general, non-astigmatic, imaging scheme, consisting of a matched pair of spherically bent crystals or reflectors, to x rays. These conditions lead to two specific experimental arrangements, of which one can provide large magnifications. Potential applications include the x-ray diagnosis of laser-produced plasmas and x-ray imaging of, e.g., biological samples, using the highly monochromatic radiation at synchrotron light sources. The results obtained for x rays are, however, valid for a wide spectrum of the electromagnetic radiation so that, for instance, an application of one of the imaging schemes to lithography in the EUV wavelength range should also be possible, if the spherically bent crystals are replaced by appropriate spherical reflectors. Also described is the design of an x-ray crystal spectrometer, which meets the here defined, necessary requirements for the observation of the x-ray spectra of helium-like argon.
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Affiliation(s)
- M Bitter
- Princeton University, Princeton Plasma Physics Laboratory, Princeton, NJ 08543, USA
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Barraclough R, Jones F, Patterson D, Tetlow A. The Photochemical Decomposition of Aryldiazonium Salts I-Stability and Quantum Yields. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1478-4408.1972.tb03035.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Affiliation(s)
- F. Jones
- Clothing and Protective Life Support Equipment Lab., U.S. Army Laboratories, Natick, Mass. 01760, U.S.A
| | - L. Flores
- Clothing and Protective Life Support Equipment Lab., U.S. Army Laboratories, Natick, Mass. 01760, U.S.A
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Affiliation(s)
- H. Hemzawi
- Department of Colour Chemistry and Dyeing, The University, Leeds LS2 9JT
| | - F. Jones
- Department of Colour Chemistry and Dyeing, The University, Leeds LS2 9JT
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Affiliation(s)
- F. Jones
- Department of Colour Chemistry and Dyeing University of Leeds Leeds 2
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