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Said O, Sengun Filiz E, Stringer D, Applewhite B, Kellermann V, Mutwalli H, Bektas S, Akkese MN, Kumar A, Carter B, Simic M, Sually D, Bentley J, Young AH, Madden S, Byford S, Landau S, Lawrence V, Treasure J, Schmidt U, Nicholls D, Himmerich H. Olanzapine for young PEople with aNorexia nervosa (OPEN): A protocol for an open-label feasibility study. Eur Eat Disord Rev 2024; 32:532-546. [PMID: 38299859 DOI: 10.1002/erv.3060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 12/13/2023] [Accepted: 12/30/2023] [Indexed: 02/02/2024]
Abstract
INTRODUCTION Antipsychotics are routinely prescribed off-label for anorexia nervosa (AN) despite limited evidence. This article presents a protocol of a study aiming to assess the feasibility of a future definitive trial on olanzapine in young people with AN. METHODS AND ANALYSIS In an open-label, one-armed feasibility study, 55 patients with AN or atypical AN, aged 12-24, receiving outpatient, inpatient or day-care treatment who are considered for olanzapine treatment will be recruited from NHS sites based in England. Assessments will be conducted at screening, baseline and at 8-, 16 weeks, 6- and 12 months. Primary feasibility parameters will be proportions of patients who agree to take olanzapine and who adhere to treatment and complete study assessments. Qualitative methods will be used to explore acceptability of the intervention and study design. Secondary feasibility parameters will be changes in body mass index, psychopathology, side effects, health-related quality of life, carer burden and proportion of participants who would enrol in a future randomised controlled trial. The study is funded by the National Institute for Health Research via Health Technology Assessment programme. DISCUSSION Olanzapine for young PEople with aNorexia nervosa will inform a future randomised controlled trial on the efficacy and safety of prescribing olanzapine in young people with AN.
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Affiliation(s)
- Olena Said
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Ece Sengun Filiz
- Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, UK
| | - Dominic Stringer
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Briana Applewhite
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Vanessa Kellermann
- Department of Health Service and Population Research, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Hiba Mutwalli
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Sevgi Bektas
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Melahat Nur Akkese
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Ashish Kumar
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- Mersey Care NHS Foundation Trust, Merseyside, UK
| | - Ben Carter
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Mima Simic
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Dilveer Sually
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Jessica Bentley
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Allan H Young
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Sloane Madden
- University of Sydney, Sydney, New South Wales, Australia
| | - Sarah Byford
- Department of Health Service and Population Research, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Sabine Landau
- Department of Biostatistics and Health Informatics, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Vanessa Lawrence
- Department of Health Service and Population Research, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - Janet Treasure
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Ulrike Schmidt
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
| | - Dasha Nicholls
- Division of Psychiatry, Department of Brain Sciences, Imperial College London, London, UK
| | - Hubertus Himmerich
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
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2
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Lewis YD, Bergner L, Steinberg H, Bentley J, Himmerich H. Pharmacological Studies in Eating Disorders: A Historical Review. Nutrients 2024; 16:594. [PMID: 38474723 DOI: 10.3390/nu16050594] [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: 12/28/2023] [Revised: 02/11/2024] [Accepted: 02/13/2024] [Indexed: 03/14/2024] Open
Abstract
Eating disorders (EDs) are serious mental health conditions characterised by impaired eating behaviours and nutrition as well as disturbed body image, entailing considerable mortality and morbidity. Psychopharmacological medication is an important component in the treatment of EDs. In this review, we performed a historic analysis of pharmacotherapeutic research in EDs based on the scientific studies included in the recently published World Federation of Societies for Biological Psychiatry (WFSBP) guidelines for ED treatment. This analysis focuses on early approaches and trends in the methods of clinical pharmacological research in EDs, for example, the sample sizes of randomised controlled trials (RCTs). We found the development of psychopharmacological treatments for EDs followed advancements in psychiatric pharmacotherapy. However, the application of RCTs to the study of pharmacotherapy for EDs may be an impediment as limited participant numbers and inadequate research funding impede generalisability and statistical power. Moreover, current medication usage often deviates from guideline recommendations. In conclusion, the RCT model may not effectively capture the complexities of ED treatment, and funding limitations hinder research activity. Novel genetically/biologically based treatments are warranted. A more comprehensive understanding of EDs and individualised approaches should guide research and drug development for improved treatment outcomes.
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Affiliation(s)
- Yael D Lewis
- Hadarim Eating Disorders Unit, Shalvata Mental Health Centre, Hod Hasharon 4534708, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel
| | - Lukas Bergner
- Forschungsstelle für die Geschichte der Psychiatrie, Klinik und Poliklinik Psychiatrie und Psychotherapie, Medizinische Fakultät der Universität Leipzig, 04103 Leipzig, Germany
| | - Holger Steinberg
- Forschungsstelle für die Geschichte der Psychiatrie, Klinik und Poliklinik Psychiatrie und Psychotherapie, Medizinische Fakultät der Universität Leipzig, 04103 Leipzig, Germany
| | - Jessica Bentley
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK
| | - Hubertus Himmerich
- Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London SE5 8AF, UK
- South London and Maudsley NHS Foundation Trust, London BR3 3BX, UK
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3
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Hu S, Khoury P, Akuthota P, Baylis L, Chang S, Wechsler M, Bentley J. Efficacité du mépolizumab chez les patients atteints de GEPA en fonction de l’impact du traitement à l’inclusion, de la durée de la maladie et du statut réfractaire. Rev Med Interne 2022. [DOI: 10.1016/j.revmed.2022.10.338] [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: 12/12/2022]
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4
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Pane F, Lefèvre G, Kwon N, Bentley J, Yancey S, Steinfeld J, Picaud C. Impact de mépolizumab sur les poussées chez les patients atteints d’un syndrome hyperéosinophilique. Rev Med Interne 2021. [DOI: 10.1016/j.revmed.2021.10.121] [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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5
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Wechsler M, Jayne D, Terrier B, Hellmich B, Bentley J, Steinfeld J, Yancey S, Kwon N. A043 ORAL CORTICOSTEROID–SPARING EFFECT OF MEPOLIZUMAB IN PATIENTS WITH EOSINOPHILIC GRANULOMATOSIS WITH POLYANGIITIS. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.031] [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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6
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Downey CL, Bentley J, Pandit H. Challenges and solutions to returning to clinical training after research: a multidisciplinary survey of integrated academic trainees in West Yorkshire, United Kingdom. BMC Med Educ 2021; 21:117. [PMID: 33602185 PMCID: PMC7890884 DOI: 10.1186/s12909-021-02556-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/27/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Time out of clinical training can impact medical trainees' skills, competence and confidence. Periods of Out of Programme for Research (OOPR) are often much longer than other approved mechanisms for time of out training. The aim of this survey study was to explore the challenges of returning to clinical training following OOPR, and determine potential solutions. METHODS All current integrated academic training (IAT) doctors at the University of Leeds (United Kingdom) and previous IAT trainees undertaking OOPR in the local region (West Yorkshire, United Kingdom)(n = 53) were invited to complete a multidisciplinary survey. RESULTS The survey was completed by 33 participants (62% response rate). The most relevant challenges identified were completing the thesis whilst transitioning back to clinical work, the rapid transition between full-time research and clinical practice, a diminished confidence in clinical abilities and isolation from colleagues. Potential solutions included dedicated funds allocated for the renewal of lapsed skills, adequate notice of the clinical rotation to which trainees return, informing clinical supervisors about the OOPR trainee returning to practice and a mandatory return to standard clinical days. CONCLUSIONS Addressing these issues has the potential to improve the trainee experience and encourage future trainees to take time out of training for research activities.
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Affiliation(s)
- C L Downey
- Leeds Institute of Medical Research at St James's, St. James's University Hospital, University of Leeds, Level 7, Clinical Sciences Building, Leeds, LS9 7TF, UK.
| | - J Bentley
- School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - H Pandit
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Chapel Allerton Hospital, Leeds, LS7 4SA, UK
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Poole J, Bentley J, Barraud L, Samish I, Dalkas G, Matheson A, Clegg P, Euston S, Kauffman Johnson J, Haacke C, Westphal L, Molina Beato L, Adams M, Spiro A. Rising to the challenges: Solution‐based case studies highlighting innovation and evolution in reformulation. NUTR BULL 2020. [DOI: 10.1111/nbu.12456] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- J. Poole
- Institute of Food Science and Technology London UK
| | | | - L. Barraud
- Nestlé Product Technology Centre York UK
| | | | | | | | - P. Clegg
- The University of Edinburgh Edinburgh UK
| | | | | | | | | | | | | | - A. Spiro
- British Nutrition Foundation London UK
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8
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Flock D, Laughlin K, Bentley J. Minimizing losses in poultry breeding and production: how breeding companies contribute to poultry welfare. WORLD POULTRY SCI J 2019. [DOI: 10.1079/wps200560] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- D.K. Flock
- Lohmann Tierzucht GmbH, P.O. Box 460, 27454 Cuxhaven, Germany
| | - K.F. Laughlin
- Aviagen Group. Newbridge, Midlothian, EH28 8SZ, Scotland, UK
| | - J. Bentley
- British United Turkeys Ltd., Hockenhull Hall, Tarvin, Chester, CH3 8LE, UK
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9
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Abstract
Shared decision-making (SDM) means that clinicians and the patient make decisions about the treatment together. Regarding drug treatment in eating disorders (EDs), such decisions may include psychopharmacological treatment for the ED itself, medications for potential co-morbid psychiatric disorders, pharmacological strategies to alleviate the health consequences of an ED, or 'pro re nata' (PRN) medication which is given in acute care when required. Decisions regarding drug treatment in EDs should be specific in terms of the active pharmacological substance, its dose, its route of administration, and the duration of treatment. Decisions should be made with regard to the specific health risks of patients with EDs and the entire treatment approach, and should take alternative measures, additional therapies, and specific combinations of therapies into account. The differences in the expectations of patients, carers, and clinicians towards drug treatment, the lack of specific suggestions in clinical practice guidelines, and the lack of approved psychopharmacological treatment options make SDM necessary, but also a challenge. However, SDM may be limited due to the patient's impaired insight or limited capacity due to the ED. Thus, the legal framework must be taken into consideration.
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Affiliation(s)
- Hubertus Himmerich
- a South London and Maudsley NHS Foundation Trust , Bethlem Royal Hospital , London , UK.,b Department of Psychological Medicine , IoPPN, King's College London , London , UK
| | - Jessica Bentley
- b Department of Psychological Medicine , IoPPN, King's College London , London , UK
| | | | - Clare Brennan
- a South London and Maudsley NHS Foundation Trust , Bethlem Royal Hospital , London , UK
| | - Katie Au
- a South London and Maudsley NHS Foundation Trust , Bethlem Royal Hospital , London , UK
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10
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Decker K, Baines N, Muzyka C, Lee M, Mayrand MH, Yang H, Fung S, Mercer D, McFaul S, Kupets R, Savoie R, Lotocki R, Bentley J. Measuring colposcopy quality in Canada: development of population-based indicators. ACTA ACUST UNITED AC 2019; 26:e286-e291. [PMID: 31285670 DOI: 10.3747/co.26.4709] [Citation(s) in RCA: 1] [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] [Indexed: 11/15/2022]
Abstract
Background Colposcopy is a key part of cervical cancer control. As cervical cancer screening and prevention strategies evolve, monitoring colposcopy performance will become even more critical. In the present paper, we describe population-based colposcopy quality indicators that are recommended for ongoing measurement by cervical cancer screening programs in Canada. Methods The Pan-Canadian Cervical Cancer Screening Network established a multidisciplinary expert working group to identify population-based colposcopy quality indicators. A systematic literature review was conducted to ascertain existing population and program-level colposcopy quality indicators. A systems-level cervical cancer screening pathway describing each step from an abnormal screening test, to colposcopy, and back to screening was developed. Indicators from the literature were assigned a place on the pathway to ensure that all steps were measured. A prioritization matrix scoring system was used to score each indicator based on predetermined criteria. Proposed colposcopy quality indicators were shared with provincial and territorial screening programs and subsequently revised. Results The 10 population-based colposcopy quality indicators identified as priorities were colposcopy uptake, histologic investigation (biopsy) rate, colposcopy referral rate, failure to attend colposcopy, treatment frequency in women 18-24 years of age, re-treatment proportion, colposcopy exit-test proportion, histologic investigation (biopsy) frequency after low-grade Pap test results, length of colposcopy episode of care, and operating room treatment rate. Two descriptive indicators were also identified: colposcopist volume and number of colposcopists per capita. Summary High-quality colposcopy services are an essential component of provincial cervical cancer screening programs. The proposed quality and descriptive indicators will permit colposcopy outcomes to be compared between provinces and across Canada so as to identify opportunities for improving colposcopy services.
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Affiliation(s)
- K Decker
- Department of Community Health Sciences, University of Manitoba, Winnipeg, MB.,Research Institute in Oncology and Hematology, CancerCare Manitoba, Winnipeg, MB
| | - N Baines
- Canadian Partnership Against Cancer, Toronto, ON
| | - C Muzyka
- Department of Epidemiology, CancerCare Manitoba, Winnipeg, MB
| | | | - M H Mayrand
- Departments of Obstetrics and Gynecology and Social and Preventive Medicine, Université de Montréal, Montreal, QC
| | - H Yang
- Population, Public and Aboriginal Health, Alberta Health Services, Calgary, AB
| | - S Fung
- Canadian Partnership Against Cancer, Toronto, ON
| | - D Mercer
- Cervical Screening Initiatives Program, Eastern Health, St. John's, NL
| | - S McFaul
- Department of Obstetrics and Gynecology, University of Ottawa, Ottawa, ON
| | - R Kupets
- Ontario Cervical Screening Program, Cancer Care Ontario, Toronto, ON
| | - R Savoie
- New Brunswick Department of Health, Fredericton, NB
| | - R Lotocki
- CervixCheck Manitoba, CancerCare Manitoba, Winnipeg, MB
| | - J Bentley
- Department of Obstetrics and Gynaecology, Dalhousie University, Halifax, NS
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11
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Himmerich H, Bentley J, Kan C, Treasure J. Genetic risk factors for eating disorders: an update and insights into pathophysiology. Ther Adv Psychopharmacol 2019; 9:2045125318814734. [PMID: 30800283 PMCID: PMC6378634 DOI: 10.1177/2045125318814734] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [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] [Received: 06/05/2018] [Accepted: 10/15/2018] [Indexed: 12/16/2022] Open
Abstract
Genome-wide-association studies (GWASs), epigenetic, gene-expression and gene-gene interaction projects, nutritional genomics and investigations of the gut microbiota have increased our knowledge of the pathophysiology of eating disorders (EDs). However, compared with anorexia nervosa, genetic studies in patients with bulimia nervosa and binge-eating disorder are relatively scarce, with the exception of a few formal genetic and small-sized candidate-gene-association studies. In this article, we review important findings derived from formal and molecular genetics in order to outline a genetics-based pathophysiological model of EDs. This model takes into account environmental and nutritional factors, genetic factors related to the microbiome, the metabolic and endocrine system, the immune system, and the brain, in addition to phenotypical traits of EDs. Shortcomings and advantages of genetic research in EDs are discussed against the historical background, but also in light of potential future treatment options for patients with EDs.
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Affiliation(s)
| | - Jessica Bentley
- Department of Psychological Medicine, King's College London, London, UK
| | - Carol Kan
- Department of Psychological Medicine, King's College London, London, UK
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12
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Butwick AJ, Bentley J, Leonard SA, Carmichael SL, El-Sayed YY, Stephansson O, Guo N. Prepregnancy maternal body mass index and venous thromboembolism: a population-based cohort study. BJOG 2018; 126:581-588. [PMID: 30500109 DOI: 10.1111/1471-0528.15567] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2018] [Indexed: 12/23/2022]
Abstract
OBJECTIVE To assess the relation between maternal body mass index (BMI) and pregnancy-related venous thromboembolism (VTE). DESIGN Cohort study. SETTING AND POPULATION A total of 2 449 133 women with singleton pregnancies who underwent delivery hospitalisation in California between 2008 and 2012. METHODS Association of pre-pregnancy BMI and the risk of an antepartum and postpartum VTE was examined using logistic regression, with normal BMI as reference. MAIN OUTCOME MEASURES Antepartum and postpartum VTE-related hospitalisation. RESULTS The prevalence of antepartum and postpartum VTE increased with increasing BMI (antepartum: 2.3, 3.0, 3.8, 4.2, 4.7, and 10.6 per 10 000 women for underweight, normal BMI, overweight, obesity class I, II, and III, respectively, P < 0.001; postpartum: 2.0, 3.1, 3.9, 5.6, 9.0, and 13.2 per 10 000 women, P < 0.01). The adjusted odds of antepartum and postpartum VTE increased progressively with increasing BMI, with obesity class III women having the highest risk of pregnancy-related VTE compared with normal BMI women: adjusted odds ratio for antepartum VTE: 2.9; 95% CI 2.2-3.8 and adjusted odds ratio for postpartum VTE: 3.6; 95% CI 2.9-4.6. CONCLUSIONS Our findings clearly demonstrate an increasing risk of pregnancy-related VTE with increasing BMI. TWEETABLE ABSTRACT Obesity was associated with increased odds of antepartum and postpartum venous thromboembolism.
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Affiliation(s)
- A J Butwick
- Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - J Bentley
- Quantitative Sciences Unit, Stanford University, Stanford, CA, USA
| | - S A Leonard
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - S L Carmichael
- Division of Neonatal and Developmental Medicine, Department of Pediatrics, Stanford University School of Medicine, Stanford, CA, USA
| | - Y Y El-Sayed
- Department of Obstetrics and Gynecology, Stanford University School of Medicine, Stanford, CA, USA
| | - O Stephansson
- Department of Medicine Solna, Clinical Epidemiology Unit, Stockholm, Sweden.,Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - N Guo
- Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, Stanford, CA, USA
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13
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Aziz N, Spiegel A, Bentley J, Yoffe P, Klikoff A, Ehrlich K, El-Sayed Y, Benitz W, Norton M, Taslimi M. Evaluation of probiotic oral supplementation effects on group B streptococcus rectovaginal colonization in pregnant women: a randomized double-blind placebo-controlled trial. Am J Obstet Gynecol 2018. [DOI: 10.1016/j.ajog.2018.10.075] [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: 10/27/2022]
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14
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Metcalf L, Musgrove M, Bentley J, Berrington R, Bunting D, Mousley M, Thompson J, Sprengel M, Turtle-Savage V, Game F, Jeffcoate W. Prevalence of active Charcot disease in the East Midlands of England. Diabet Med 2018; 35:1371-1374. [PMID: 29782669 DOI: 10.1111/dme.13679] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [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] [Accepted: 05/17/2018] [Indexed: 11/29/2022]
Abstract
AIMS To undertake a prospective point prevalence study of the prevalence of active Charcot neuro-inflammatory osteoarthropathy (Charcot disease) in a circumscribed part of England and to audit the time elapsing between disease onset and first diagnosis. METHODS The prevalence of active Charcot disease of the foot during a single month was assessed by specialist foot care teams at seven secondary care services in the East Midlands region of England. RESULTS A total of 90 cases were identified, representing 4.3 per 10 000 of the 205 033 total diabetes population of the region. The time elapsed from first presentation to any healthcare professional until diagnosis was also assessed. While the diagnosis was suspected or confirmed in one-third of patients within 2 weeks, it was not made for 2 months or more in 23 patients (24%). CONCLUSIONS Non-specialist professionals should have greater awareness of the existence of this uncommon complication of diabetes in the hope that earlier diagnosis will lead to lesser degrees of deformity.
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Affiliation(s)
- L Metcalf
- Nottingham Healthcare NHS Foundation Trust Nottingham, Nottingham, UK
| | - M Musgrove
- Foot Ulcer Trials Unit, Nottingham University Hospitals Trust, Nottingham, UK
| | - J Bentley
- Lincolnshire Community Health Services NHS Trust, Lincoln, UK
| | - R Berrington
- University Hospitals Leicester NHS Trust, Leicester, UK
| | - D Bunting
- Derbyshire Community Health Services NHS Foundation Trust, Derby, UK
| | - M Mousley
- Northamptonshire Healthcare NHS Foundation Trust, Northampton, UK
| | - J Thompson
- Nottingham Healthcare NHS Foundation Trust Nottingham, Nottingham, UK
| | - M Sprengel
- Foot Ulcer Trials Unit, Nottingham University Hospitals Trust, Nottingham, UK
| | - V Turtle-Savage
- Foot Ulcer Trials Unit, Nottingham University Hospitals Trust, Nottingham, UK
| | - F Game
- Diabetes and Endocrinology, Derby Teaching Hospitals NHS Foundation Trust, Derby, UK
| | - W Jeffcoate
- Foot Ulcer Trials Unit, Nottingham University Hospitals Trust, Nottingham, UK
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Affiliation(s)
- Hubertus Himmerich
- Bethlem Royal Hospital, South London and Maudsley NHS Foundation Trust, London, UK.,Department of Psychological Medicine, IoPPN, King's College London, London, UK,
| | | | - Julia Dornik
- Bethlem Royal Hospital, South London and Maudsley NHS Foundation Trust, London, UK
| | | | - Ulrike Schmidt
- Department of Psychological Medicine, IoPPN, King's College London, London, UK
| | - Janet Treasure
- Bethlem Royal Hospital, South London and Maudsley NHS Foundation Trust, London, UK.,Department of Psychological Medicine, IoPPN, King's College London, London, UK
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16
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Affiliation(s)
- J. Bentley
- Oak Ridge National Laboratory, Metals and Ceramics Division, Oak Ridge, Tennessee 37830
| | - F. W. Wiffen
- Oak Ridge National Laboratory, Metals and Ceramics Division, Oak Ridge, Tennessee 37830
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17
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Murdoch RD, Bareille P, Bentley J, Smart K, Horak F. P153 The impact of TRPV1 Antagonism on the Treatment of Seasonal Allergic Rhinitis. Thorax 2012. [DOI: 10.1136/thoraxjnl-2012-202678.214] [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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Murdoch RD, Bareille P, Bentley J, Newlands A, Smart K, Patel D. P154 TRPV1 is not a Target for the Treatment of non-allergic Rhinitis: A Clinical Study. Thorax 2012. [DOI: 10.1136/thoraxjnl-2012-202678.215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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19
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Brideau C, Jevons S, Groselj B, Bentley J, Kiltie A. Differential Roles of DNA Repair Proteins in the MMEJ Phenotype. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1806] [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: 10/27/2022]
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Lee CK, Simes RJ, Brown C, Gebski V, Pfisterer J, Swart AM, Berton-Rigaud D, Plante M, Skeie-Jensen T, Vergote I, Schauer C, Pisano C, Parma G, Baumann K, Ledermann JA, Pujade-Lauraine E, Bentley J, Kristensen G, Belau A, Nankivell M, Canzler U, Lord SJ, Kurzeder C, Friedlander M. A prognostic nomogram to predict overall survival in patients with platinum-sensitive recurrent ovarian cancer. Ann Oncol 2012; 24:937-43. [PMID: 23104722 DOI: 10.1093/annonc/mds538] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Patients with platinum-sensitive recurrent ovarian cancer have variable prognosis and survival. We extend previous work on prediction of progression-free survival by developing a nomogram to predict overall survival (OS) in these patients treated with platinum-based chemotherapy. PATIENTS AND METHODS The nomogram was developed using data from the CAELYX in Platinum-Sensitive Ovarian Patients (CALYPSO) trial. Multivariate proportional hazards models were generated based on pre-treatment characteristics to develop a nomogram that classifies patient prognosis based on OS outcome. We also developed two simpler models with fewer variables and conducted model validations in independent datasets from AGO-OVAR Study 2.5 and ICON 4. We compare the performance of the nomogram with the simpler models by examining the differences in the C-statistics and net reclassification index (NRI). RESULTS The nomogram included six significant predictors: interval from last platinum chemotherapy, performance status, size of the largest tumour, CA-125, haemoglobin and the number of organ sites of metastasis (C-statistic 0.67; 95% confidence interval 0.65-0.69). Among the CALPYSO patients, the median OS for good, intermediate and poor prognosis groups was 56.2, 31.0 and 20.8 months, respectively. When CA-125 was not included in the model, the C-statistics were 0.65 (CALYPSO) and 0.64 (AGO-OVAR 2.5). A simpler model (interval from last platinum chemotherapy, performance status and CA-125) produced a significant decrease of the C-statistic (0.63) and NRI (26.4%, P < 0.0001). CONCLUSIONS This nomogram with six pre-treatment characteristics improves OS prediction in patients with platinum-sensitive ovarian cancer and is superior to models with fewer prognostic factors or platinum chemotherapy free interval alone. With independent validation, this nomogram could potentially be useful for improved stratification of patients in clinical trials and also for counselling patients.
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Affiliation(s)
- C K Lee
- NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia.
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Brideau C, Jevons S, Groselj B, Bentley J, Kiltie A. 279 Differential Roles of Ku70 and Ku80 in the MMEJ Phenotype. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70974-7] [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: 10/28/2022]
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Bentley J, Neubauer AP, Sauerbrei A. Value of herpes simplex virus type-specific serology: a case report. J Clin Virol 2012; 54:269-71. [PMID: 22465341 DOI: 10.1016/j.jcv.2012.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2012] [Revised: 03/06/2012] [Accepted: 03/07/2012] [Indexed: 12/01/2022]
Abstract
Genital herpes, usually caused by herpes simplex virus type 2 (HSV-2), is one of the most common sexually transmitted diseases in humans. By contrast, intrauterine HSV-2 infections have been described rarely in the literature. Our report describes a case of neonate who was delivered after 30+2 gestational weeks by cesarean section. He presented with a respiratory distress syndrome resulting in broncho-pulmonary dysplasia. At the age of 6 weeks, a chorioretinal scar was detected. During the 4th month of age, the infant developed recurrent HSV-2 infection with nasal lesions. The retrospective type-specific serologic diagnosis revealed previous HSV-2 infection of the mother resulting in prenatal HSV-2 infection of the infant. In conclusion, intrauterine HSV-2 infections may be underrepresented since they may not be associated with severe congenital malformations and the diagnosis requires the use of HSV type-specific serologic methods not widely applied in microbiological laboratories.
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Affiliation(s)
- J Bentley
- Department of Neonatology, St. Bernward Hospital Hildesheim, Treibestrasse 9, 31134 Hildesheim, Germany
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Oza A, Castonguay V, Tsoref D, Diaz–Padilla I, Karakasis K, Mackay H, Welch S, Weberpals J, Hoskins P, Plante M, Provencher D, Tonkin K, Covens A, Ghatage P, Gregoire J, Hirte H, Miller D, Rosen B, Bentley J, Maroun J, Buyse M, Coens C, Brady M, Stuart G. Corrigendum: Progression-Free Survival in Advanced Ovarian Cancer: A Canadian Review and Expert Panel Perspective. Curr Oncol 2011. [DOI: 10.3747/co.v18is2.939] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In recent years, significant advances have been made in the management of metastatic colorectal cancer. Traditionally, an improvement in overall survival has been considered the “gold standard”—the most convincing measure of efficacy. However, overall survival requires larger patient numbers and longer follow-up and may often be confounded by other factors, including subsequent therapies and crossover. Given the number of active therapies for potential investigation, demand for rapid evaluation and early availability of new therapies is growing. Progression-free survival is regarded as an important measure of treatment benefit and, compared with overall survival, can be evaluated earlier, with fewer patients and no confounding by subsequent lines of therapy. The present paper reviews the advantages, limitations, and relevance of progression-free survival as a primary endpoint in randomized trials of metastatic colorectal cancer.
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Kurzeder C, Zhao L, Eisenhauer EA, Vergote IB, Du Bois A, Tai D, Wang Y, Gill JF, Hirte HW, Richter B, Hanker LC, Bentley J, Wagner UAG, Plante M, Kimmig R, Pfisterer J. The impact of dose intensity on the efficacy of gemcitabine plus carboplatin (GC) therapy for recurrent platinum-sensitive ovarian cancer (PSOC): A retrospective analysis of AGO-OVAR 2.5. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.5088] [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: 11/20/2022] Open
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Abstract
ABSTRACTAnalytical electron microscopy (AEM) and Rutherford backscattering spectroscopy-ion channeling (RBS-C) have been used to characterize single crystal α-silicon carbide implanted at room temperature with 160 keV 57Fe ions to fluences of 1, 3, and 6×1016 ions/cm2. Best correlations among AEM, RBS, and TRIM calculations were obtained assuming a density of the amorphized implanted regions equal to that of crystalline SiC. No iron-rich precipitates or clusters were detected by AEM. Inspection of the electron energy loss fine structure for iron in the implanted specimens suggests that the iron is not metallically-bonded, supporting conclusions from earlier conversion electron Mössbauer spectroscopy (CEMS) studies. In-situ annealing surprisingly resulted in crystallization at 600°C with some redistribution of the implanted iron.
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Abstract
ABSTRACTSpecimen artifacts such as grain boundary grooving, surface damage of the specimen, and Si contamination are shown experimentally to arise from the ion milling used in the preparation of transmission electron microscopy specimens. These artifacts in polycrystalline, ceramic specimens can cause clean grain boundaries to appear to contain a glassy phase when the dark-field diffuse scattering technique, the Fresnel fringe technique, and analytical electron microscopy (energy dispersive spectroscopy) are used to identify glassy phases at a grain boundary. The ambiguity in interpereting each of these techniques due to the ion milling artifacts will be discussed from a theoretical view point and compared to experimental results obtained for alumina.
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Abstract
AbstractThe current study of CoCr12Ta4/Cr longitudinal recording media combines high resolution electron microscopy (HRTEM) with nanoprobe energy dispersive spectroscopy (EDS) and energy-filtered imaging (EFTEM) to correlate the Cr distribution with specific microstructural features. EFTEM images show Cr enrichment at grain boundaries, both random angle boundaries and 90° bicrystal boundaries. Cr segregation within grains is also observed in the elemental maps. This intragrain segregation often occurs at a series of defects that may define separately nucleated grains having 00 misorientation. Nanoprobe EDS measurements indicate that these defects contain localized concentrations of 25 to 30 % Cr. The random angle grain boundary Cr concentration occurs with a wide range, 19 to 36 at% (mean 22%) whereas the more crystallographically related 900 boundaries contain less Cr with less variation, 15 to 21 at% (mean 17% Cr). Composition profiles across grain boundaries using both nanoprobe EDS and EFTEM images show the full-width-half-maximum of the segregation to be approximately 4 nm, with Cr depleted regions next to the grain boundary having less than 7 at% Cr. The Ta concentration revealed no statistical evidence of segregation.
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Abstract
ABSTRACTChanges in the electron energy-loss near-edge fine structure (ELNES) of the O-K and Co-L edges have been characterized in cobalt oxide in the vicinity of a boundary between periclase-(CoO) and spinel- (Co3O4) structured phases. The data were acquired with a conventional transmission electron microscope (CTEM) equipped with an imaging filter and operated in spectrum-line mode. Independent spectral features were identified by multivariate statistical analysis (MSA) of the raw data. The MSA of the spectrum-image acquired at the Co-L edge indicated a transition over ∼12 nm in the spectral features at the phase boundary. The variation of the ELNES at the O-K edge varied appreciably only in the interface region, whereas that at the Co-L edge also indicated subtle gradients in both phases adjacent to the interface area. These gradients are consistent with a change in the average oxidation state of the cobalt cations in the vicinity of the interface. A second independent component of the ELNES was also identified at the Co-L edge. Possible interpretations of this second component are discussed.
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Lee CK, Guardiola E, Hogberg T, Friedlander M, Bentley J, Denison U, Vergote IB, Pisano C, Parma G, Wimberger P. Development of a nomogram to predict progression-free survival in patients with platinum-sensitive recurrent ovarian cancer based on the CALYPSO trial. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.5105] [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: 11/20/2022] Open
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Johnson N, Bentley J, Wang LZ, Newell DR, Robson CN, Shapiro GI, Curtin NJ. Pre-clinical evaluation of cyclin-dependent kinase 2 and 1 inhibition in anti-estrogen-sensitive and resistant breast cancer cells. Br J Cancer 2009; 102:342-50. [PMID: 20010939 PMCID: PMC2816653 DOI: 10.1038/sj.bjc.6605479] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [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: 01/08/2023] Open
Abstract
BACKGROUND Cellular proliferation, driven by cyclin-dependent kinases (CDKs) and their cyclin partners, is deregulated in cancer. Anti-estrogens, such as tamoxifen, antagonise estrogen-induced ERalpha transactivation of cyclin D1, resulting in reduced CDK4/6 activity, p27(Kip1)-mediated inhibition of CDK2 and growth arrest. We hypothesised that direct inhibition of CDK2 and CDK1 may overcome the major clinical problem of anti-estrogen resistance. METHODS The cellular effects of CDK2/1 siRNA knockdown and purine-based CDK2/1 inhibitors, NU2058 and NU6102, were measured in anti-estrogen-sensitive and resistant breast cancer cell lines. RESULTS CDK2 knockdown caused G1 accumulation, whereas CDK1 depletion caused G2/M slowing, and dual CDK1/2 depletion resulted in further G2/M accumulation and cell death in both anti-estrogen-sensitive and resistant cells, confirming CDK2 and CDK1 as targets for breast cancer therapy. In contrast to tamoxifen, which only affected hormone-sensitive cells, NU2058 and NU6102 reduced CDK2-mediated phosphorylation of pRb, E2F transcriptional activity and proliferation, ultimately resulting in cell death, in both anti-estrogen-sensitive and resistant cells. Both drugs caused G2/M arrest, reflective of combined CDK2/1 knockdown, with a variable degree of G1 accumulation. CONCLUSION These studies confirm the therapeutic potential of CDK2 and CDK1 inhibitors for cancer therapy, and support their use as an alternative treatment for endocrine-resistant breast cancer.
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Affiliation(s)
- N Johnson
- Northern Institute for Cancer Research, Newcastle University, Paul O' Gorman Building, Framlington Place, Newcastle upon Tyne, NE2 4HH, UK
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Ratnam S, Fontaine D, Coutlee F, Bentley J, Escott N, Ghatage P, Bartellas E, Kum N, Giede C, Lear A. O63 HPV E6/E7 mRNA and MCM2/TOP2a testing in cervical cancer screening: results from a multicentre Canadian study. Int J Antimicrob Agents 2009. [DOI: 10.1016/s0924-8579(09)70210-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kisielowski C, Freitag B, Bischoff M, van Lin H, Lazar S, Knippels G, Tiemeijer P, van der Stam M, von Harrach S, Stekelenburg M, Haider M, Uhlemann S, Müller H, Hartel P, Kabius B, Miller D, Petrov I, Olson EA, Donchev T, Kenik EA, Lupini AR, Bentley J, Pennycook SJ, Anderson IM, Minor AM, Schmid AK, Duden T, Radmilovic V, Ramasse QM, Watanabe M, Erni R, Stach EA, Denes P, Dahmen U. Detection of single atoms and buried defects in three dimensions by aberration-corrected electron microscope with 0.5-A information limit. Microsc Microanal 2008; 14:469-477. [PMID: 18793491 DOI: 10.1017/s1431927608080902] [Citation(s) in RCA: 137] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The ability of electron microscopes to analyze all the atoms in individual nanostructures is limited by lens aberrations. However, recent advances in aberration-correcting electron optics have led to greatly enhanced instrument performance and new techniques of electron microscopy. The development of an ultrastable electron microscope with aberration-correcting optics and a monochromated high-brightness source has significantly improved instrument resolution and contrast. In the present work, we report information transfer beyond 50 pm and show images of single gold atoms with a signal-to-noise ratio as large as 10. The instrument's new capabilities were exploited to detect a buried Sigma3 {112} grain boundary and observe the dynamic arrangements of single atoms and atom pairs with sub-angstrom resolution. These results mark an important step toward meeting the challenge of determining the three-dimensional atomic-scale structure of nanomaterials.
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Affiliation(s)
- C Kisielowski
- National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, One Cyclotron Rd., Berkeley, CA 94720, USA
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McKern N, Lawrence M, Streltsov V, Lou M, Adams T, Lovrecz G, Bentley J, Hoyne P, Frenkel M, Ward C. Structure of the insulin receptor ectodomain homodimer. Acta Crystallogr A 2006. [DOI: 10.1107/s0108767306097182] [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: 11/10/2022] Open
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Bentley J, Gilliss SR, Carter CB, Al-Sharab JF, Cosandey F, Anderson IM, Kotula PJ. Nanoscale EELS analysis of oxides: composition mapping, valence determination and beam damage. ACTA ACUST UNITED AC 2006. [DOI: 10.1088/1742-6596/26/1/016] [Citation(s) in RCA: 10] [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: 11/11/2022]
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Diggle CP, Bentley J, Knowles MA, Kiltie AE. Inhibition of double-strand break non-homologous end-joining by cisplatin adducts in human cell extracts. Nucleic Acids Res 2005; 33:2531-9. [PMID: 15872216 PMCID: PMC1088968 DOI: 10.1093/nar/gki528] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The effect of cis-diaminedichloroplatinum(II) (cisplatin) DNA damage on the repair of double-strand breaks by non-homologous end-joining (NHEJ) was determined using cell-free extracts. NHEJ was dramatically decreased when plasmid DNA was damaged to contain multiple types of DNA adducts, along the molecule and at the termini, by incubation of DNA with cisplatin; this was a cisplatin concentration-dependent effect. We investigated the effect a single GTG cisplatination site starting 10 bp from the DNA termini would have when surrounded by the regions of AT-rich DNA which were devoid of the major adduct target sequences. Cisplatination of a substrate containing short terminal 13-15 bp AT-rich sequences reduced NHEJ to a greater extent than that of a substrate with longer (31-33 bp) AT-rich sequences. However, cisplatination at the single GTG site within the AT sequence had no significant effect on NHEJ, owing to the influence of additional minor monoadduct and dinucleotide adduct sites within the AT-rich region and owing to the influence of cisplatination at sites upstream of the AT-rich regions. We then studied the effect on NHEJ of one cis-[Pt(NH3)2{d(GpTpG)-N7(1),-N7(3)} [abbreviated as 1,3-d(GpTpG)] cisplatin adduct in the entire DNA molecule, which is more reflective of the situation in vivo during concurrent chemoradiation. The presence of a single 1,3-d(GpTpG) cisplatin adduct 10 bases from each of the two DNA ends to be joined resulted in a small (30%) but significant decrease in NHEJ efficiency. This process, which was DNA-dependent protein kinase and Ku dependent, may in part explain the radiosensitizing effect of cisplatin administered during concurrent chemoradiation.
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Affiliation(s)
| | | | | | - A. E. Kiltie
- To whom correspondence should be addressed. Tel: +44 113 206 4908; Fax: +44 113 242 9886;
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Burt DW, Morrice DR, Sewalem A, Smith J, Paton IR, Smith EJ, Bentley J, Hocking PM. Preliminary linkage map of the turkey (Meleagris gallopavo) based on microsatellite markers. Anim Genet 2004; 34:399-409. [PMID: 14687069 DOI: 10.1046/j.1365-2052.2003.01033.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The turkey is an agriculturally important species for which, until now, there is no published genetic linkage map based on microsatellite markers--still the markers most used in the chicken and other farm animals. In order to increase the number of markers on a turkey genetic linkage map we decided to map new microsatellite sequences obtained from a GT-enriched turkey genomic library. In different chicken populations more than 35-55% of microsatellites are polymorphic. In the turkey populations tested here, 43% of all turkey primers tested were found to be polymorphic, in both commercial and wild type turkeys. Twenty linkage groups (including the Z chromosome) containing 74 markers have been established, along with 37 other unassigned markers. This map will lay the foundations for further genetic mapping and the identification of genes and quantitative trait loci in this economically important species. Genome comparisons, based on genetic maps, with related species such as the chicken would then also be possible. All primer information, polymerase chain reaction (PCR) conditions, allele sizes and genetic linkage maps can be viewed at http://roslin.thearkdb.org/. The DNA is also available on request through the Roslin Institute.
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Affiliation(s)
- D W Burt
- Department of Genomics and Bioinformatics, Roslin Institute (Edinburgh), Roslin, Midlothian, UK.
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Abstract
OBJECTIVE To describe the outcomes of patients who have undergone well-conducted surgery and found to have Stage 1 serous uterine cancer. METHODS This retrospective cohort study includes women who have been treated for Stage 1 serous cancer of the uterus from 1985 to 2001. Cases were included from the regional cancer centers in Hamilton, London, Sunnybrook Toronto and Cancer Care Manitoba. RESULTS Forty-three women met the inclusion criteria: Complete surgical staging (n = 27), surgery followed by pelvic radiation therapy (n = 4), surgery followed by whole abdominal radiation therapy (n = 6), surgery followed by adjuvant chemotherapy (n = 6). Patient age or depth of invasion did not influence survival. Progression free interval was 22 months (SD = 14.29). Recurrence rate was highest for adjuvant chemotherapy (66%). Survival was assessed by treatment modality and a statistically significant poorer survival was seen in the adjuvant chemotherapy group (OR 17.5; 95% CI 1.3-227.6). No comment can be made on a superior treatment regimen given the small numbers in each treatment strata. CONCLUSION This study supports the findings of others in the literature. In a group of patients where surgical staging shows limited disease (i.e., surgically Stage 1 disease), then surgery alone appears to be adequate treatment.
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Affiliation(s)
- L Elit
- Hamilton Regional Cancer Centre, Hamilton, Ontario, Canada.
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Affiliation(s)
- Guadalupe Albarran
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and Instituto de Ciencias Nucleares-UNAM, Circuito Exterior, C.U., Mexico, D.F., 04510
| | - J. Bentley
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and Instituto de Ciencias Nucleares-UNAM, Circuito Exterior, C.U., Mexico, D.F., 04510
| | - Robert. H. Schuler
- Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, and Instituto de Ciencias Nucleares-UNAM, Circuito Exterior, C.U., Mexico, D.F., 04510
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Carmichael I, Bentley J. Comparison of the magnetic properties and harmonic force fields of nitrogen dioxide and carbon dioxide(1-) (CO2-) by ab initio calculation. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j100259a049] [Citation(s) in RCA: 5] [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: 11/30/2022]
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Bentley J, Rickaby D, Haworth ST, Hanger CC, Dawson CA. Pulmonary arterial dilation by inhaled NO: arterial diameter, NO concentration relationship. J Appl Physiol (1985) 2001; 91:1948-54. [PMID: 11641329 DOI: 10.1152/jappl.2001.91.5.1948] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The objective of this study was to determine the nitric oxide (NO) concentration and vessel diameter dependence of the pulmonary arterial dilation induced by inhaled NO. Isolated dog lung lobes were situated between a microfocal X-ray source and X-ray detector and perfused with either blood or plasma. Boluses of radiopaque contrast medium were injected into the lobar artery under control conditions, when the pulmonary arteries were constricted by infusion of serotonin and when the serotonin infusion was accompanied by inhalation of from 30 to 960 parts/million NO. Arterial diameter measurements were obtained from X-ray images of vessels having control diameters in the 300- to 3,400-microm range. Serotonin constricted the vessels throughout the size range studied, with an average decrease in diameter of approximately 20%. The fractional reversal of the serotonin-induced constriction by inhaled NO was directly proportional to inhaled NO concentration, inversely proportional to vessel size, and greater with plasma than with blood perfusion in vessels as large as 3 mm in diameter. The latter indicates that intravascular hemoglobin affected the bronchoalveolar-to-arterial luminal NO concentration gradient in fairly large pulmonary arteries. The data provide information regarding pulmonary arterial smooth muscle accessibility to intrapulmonary gas that should be useful as part of the database for modeling the communication between intrapulmonary gas and pulmonary arterial smooth muscle cells in future studies.
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Affiliation(s)
- J Bentley
- Department of Physiology, Medical College of Wisconsin, Milwaukee 53226, Wisconsin, USA
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Bentley J. The front line. Local hospitals will be the first to respond to a terrorist attack--and they intend to be ready. Hosp Health Netw 2001; 75:84, 4. [PMID: 11769593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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43
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Abstract
Involving patients in their care is a key component of the NHS plan and clinical governance (Department of Health, 1999a). Involvement is enhanced through nurse-patient relationships which are based on partnership in which the patient's viewpoint is given equal weight to that of the practitioner. In the management of wounds, this may be complex due to conflict between clinically effective treatment and a patient's wish. High quality care relies on a holistic assessment of the patient and a negotiated care plan which is implemented and evaluated in order to judge the effectiveness of care.
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Affiliation(s)
- J Bentley
- Florence Nightingale School of Nursing and Midwifery, King's College, London
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Abstract
The cost of prescribing wound-care products in general practice in 1999 exceeded 95 million (Department of Health (DoH), 1999a). However, there is a lack of randomized controlled trials to assess the effectiveness of wound-care products (National Prescribing Centre, 1999a) and there is evidence that non-effective treatments are being prescribed (DoH, 1999a). Use of the prescribing pyramid, as taught during nurse prescribing courses, may help community nurses justify their decisions and assess their wound-care practices. Wounds commonly encountered in the community include pressure sores, leg ulcers, fungating wounds and cavity wounds. The ideal choice of product is one that allows moist wound healing, is cost effective, clinically effective and acceptable to the patient.
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Affiliation(s)
- J Bentley
- Florence Nightingale School of Nursing and Midwifery, King's College, London
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Abstract
Unnecessary patient suffering and increased costs in leg ulcer care were reported in an Effective Health Care bulletin (NHS Centre for Reviews and Dissemination (NHSCRD), 1997). Follow-up assessment of patients with a history of venous ulceration has beneficial effects for patients' quality of life, and for effective and efficient management of resources for community nurses. This article describes the process of implementing evidence-based practice in a leg ulcer clinic in South London within existing resources, which resulted in the successful prevention of leg ulcer recurrence.
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Affiliation(s)
- J Bentley
- Florence Nightingale School of Nursing and Midwifery, King's College, London
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Bentley J. Defined conundrum. Hosp Health Netw 2001; 75:78. [PMID: 11291180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Affiliation(s)
- J Bentley
- American Hospital Association, Washington, DC, USA.
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Abstract
The regulation of nutrient transport by both cytokines and oncogenes has been linked to haemopoietic cell survival. In this study, we found that activation of Bcr--Abl protein tyrosine kinase was associated with the stimulation of glucose transport in the multipotent haemopoietic cell line FDCP-mix, a cell model for chronic-phase chronic myeloid leukaemia (CML). Bcr--Abl upregulation of glucose transport was mediated by phosphatidylinositol-3-kinase. The observation that Bcr--Abl can regulate glucose transport in a CML cell model raises the possibility that glucose transport regulation may have a role to play in the aberrant survival of stem cells in the chronic phase of CML.
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Affiliation(s)
- J Bentley
- School of Biochemistry and Molecular Biology, University of Leeds, Leeds, UK.
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Abstract
The current measurement of face-to-face contacts for calculating district nursing activity is inadequate for district nurses, their managers, and purchasers. With the growing emphasis on health outcomes, a measure is needed which demonstrates health gain and effectiveness, yet which does not place an additional burden for data collection on nurses' time. This article describes the preliminary findings of a project carried out in East Berkshire which suggest that such a measure is possible, and that effective care, including illness prevention, can be demonstrated. It shows that existing computer software can meet the demands for the measurement of health gain. While these are positive findings, district nurses, service managers and commissioners will need to allocate time to understand and interpret the data before drawing conclusions about the use of activity measurement in workforce planning, service costing and the effectiveness of district nursing interventions.
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Affiliation(s)
- J Bentley
- Florence Nightingale School of Nursing and Midwifery, King's College, London
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Abstract
Published studies indicate that older people have special needs on discharge from accident and emergency (A&E) departments that are not always fully met. The literature reflects that although a significant proportion of older people have a decrease in functional independence and an increased need for services following discharge from A&E, social and functional assessment by A&E staff can be inadequate, as can the arrangement of follow-up community services. As part of a wider study into the organization of care for older people in A&E, a health visitor for older people was funded to work part-time in the A&E department of a large NHS Trust. The health visitor identified potential clients through reviewing the A&E documentation of patients aged 75 years or over discharged directly from A&E. Telephone calls or home visits were used to follow up those individuals deemed to be vulnerable by the health visitor. Interventions included health education, referral to other agencies and patient or family counselling. None of the clients followed up by the health visitor (n = 212) had been referred by A&E to a specialist in gerontology, which suggests that these clients would otherwise not have received the potential benefit of specialist intervention. The pilot study described here highlights a number of practical issues in relation to the health visitor post for older people in A&E, including the importance of dedicated office space and access to a telephone. Data collected during the study, plus the positive evaluation of the role by a small group of A&E staff confirm the claims made in other studies (e.g. Runciman et al, 1996) that health visitors for older people may be of value in meeting the post-discharge needs of these people.
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Affiliation(s)
- J Bridges
- St Bartholomew School of Nursing and Midwifery, City University
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50
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Salib E, Gray N, Bentley J. The moon and mental health. Med Sci Law 1999; 39:260-261. [PMID: 10466322 DOI: 10.1177/002580249903900312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- E Salib
- Hollins Park Hospital, Warrington
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