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Sawyer A, Smith L, Ucci M, Jones R, Marmot A, Fisher A. Perceived office environments and occupational physical activity in office-based workers. Occup Med (Lond) 2017; 67:260-267. [PMID: 28339829 PMCID: PMC5927093 DOI: 10.1093/occmed/kqx022] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Individuals in office-based occupations have low levels of physical activity but there is little research into the socio-ecological correlates of workplace activity. AIMS To identify factors contributing to office-based workers' perceptions of the office environment and explore cross-sectional relationships between these factors and occupational physical activity. METHODS Participants in the Active Buildings study reported perceptions of their office environment using the Movement at Work Survey. A principal component analysis (PCA) was conducted on survey items. A sub-sample wore the ActivPAL3TM accelerometer for ≥3 workdays to measure occupational step count, standing, sitting and sit-to-stand transitions. Linear regression analyses assessed relationships between environmental perceptions and activity. RESULTS There were 433 participants, with accelerometer data available for 115 participants across 11 organ izations. The PCA revealed four factors: (i) perceived distance to office destinations, (ii) perceived office aesthetics and comfort, (iii) perceived office social environment and (iv) perceived management discouragement of unscheduled breaks. Younger participants perceived office destinations as being closer to their desk. Younger and female participants perceived more positive office social environments; there were no other socio-demographic differences. Within the sub-sample with accelerometer data, perceived discouragement of breaks by management was related to occupational step count/hour (B = -64.5; 95% CI -109.7 to -19.2). No other environmental perceptions were related to activity or sitting. CONCLUSIONS Perceived managerial discouragement of breaks could be related to meaningful decreases in occupational step count. Future research should aim to elucidate the role of the workplace socio-cultural environment in occupational walking, with a focus on the role of management.
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Kawonga R, Connolly E, Fisher A, Dunbar E, McMeel L, Kapira S, Wroe E. Does a One Size Fit All Approach Work for Community Management of Acute
Malnutrition in Rural Malawi? Ann Glob Health 2017. [DOI: 10.1016/j.aogh.2017.03.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Mhango J, Fisher A, Connolly E, Uladi B, Gunya D, Nkula G, Mwale N, Maulidi C, Mhango M, Wroe E, Nazimera L. Lessons Learned in Creating a Neonatal Nursery at a District Hospital in
Rural Malawi. Ann Glob Health 2017. [DOI: 10.1016/j.aogh.2017.03.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Castellini G, Ristori J, Fisher A, Ristori J, Casale H, Carone N, Fanni E, Mosconi M, Jannini E, Ricca V, Lingiardi V, Maggi M. PS-01-001 Transphobia and homophobia levels in gender dysphoric individuals, general population and health care providers. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2017.03.073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Castellini G, Lelli L, Vignozzi L, Fisher A, Maggi M, Ricca V. PS-02-009 What sexuality tells us about eating disorder outcome: A three years follow up study. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2017.03.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Castellini G, Fanni E, Boddi V, Ricca V, Rastrelli G, Fisher A, Cipriani S, Maggi M. P-01-006 The role of somatic symptoms in sexual medicine: Somatization as important contextual factor in male sexual dysfunction. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2017.03.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Smith L, Croker H, Fisher A, Williams K, Wardle J, Beeken RJ. Cancer survivors’ attitudes towards and knowledge of physical activity, sources of information, and barriers and facilitators of engagement: A qualitative study. Eur J Cancer Care (Engl) 2017; 26. [DOI: 10.1111/ecc.12641] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2016] [Indexed: 12/23/2022]
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Hvasta MG, Kolemen E, Fisher A. Application of IR imaging for free-surface velocity measurement in liquid-metal systems. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:013501. [PMID: 28147688 DOI: 10.1063/1.4973421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Measuring free-surface, liquid-metal flow velocity is challenging to do in a reliable and accurate manner. This paper presents a non-invasive, easily calibrated method of measuring the surface velocities of open-channel liquid-metal flows using an IR camera. Unlike other spatially limited methods, this IR camera particle tracking technique provides full field-of-view data that can be used to better understand open-channel flows and determine surface boundary conditions. This method could be implemented and automated for a wide range of liquid-metal experiments, even if they operate at high-temperatures or within strong magnetic fields.
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O'Donnell RL, Verleye L, Ratnavelu N, Galaal K, Fisher A, Naik R. Locally advanced vulva cancer: A single centre review of anovulvectomy and a systematic review of surgical, chemotherapy and radiotherapy alternatives. Is an international collaborative RCT destined for the "too difficult to do" box? Gynecol Oncol 2016; 144:438-447. [PMID: 28034465 DOI: 10.1016/j.ygyno.2016.12.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 12/01/2016] [Accepted: 12/08/2016] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Treatment of locally advanced vulva cancer (LAVC) remains challenging. Due to the lack of randomised trials many questions regarding the indications for different treatment options and their efficacy remain unanswered. METHODS In this retrospective study we provide the largest published series of LAVC patients treated with anovulvectomy, reporting oncological outcomes and morbidity. Additionally, a systematic literature review was performed for all treatment options 1946-2015. RESULTS In our case series, 57/70 (81%) patients were treated in the primary setting with anovulvectomy and 13 patients underwent anovulvectomy for recurrent disease. The median overall survival (OS) was 69months (1-336) with disease specific survival of 159months (1-336). Following anovulvectomy for primary disease, time to progression and OS were significantly higher in node negative disease (10 vs. 96months; 19 vs. 121months, p<0.0001). Post-surgical complications were observed in 36 (51.4%), the majority of which were Grade I/II infections. There was one peri-operative death. Review of the literature showed that chemotherapy, radiotherapy or combination treatments are alternatives to surgery. Evidence relating to all of these consisted mostly of small retrospective series, which varied considerably in terms of patient characteristics and treatment schedules. Significant patient and treatment heterogeneity prevented meta-analysis with significant biases in these studies. It was unclear if survival or morbidity was better in any one group with a lack of data reporting complications, quality of life, and long term follow-up. However, results for chemoradiation are encouraging enough to warrant further investigation. CONCLUSIONS There remains inadequate evidence to identify an optimal treatment for LAVC. However, there is sufficient evidence to support a trial of anovulvectomy versus chemoradiation. Discussions and consensus would be needed to determine trial criteria including the primary outcome measure. Neoadjuvant chemotherapy or radiotherapy alone may be best reserved for the palliative setting or metastatic disease.
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McCourt O, Heinrich M, Fisher A, Paton B, Beeken R, Hackshaw A, Rismani A, D'Sa S, Yong K. Use of an ‘adapted Zelen’ design in a randomised controlled trial of a physiotherapist-led exercise intervention in patients with myeloma. Physiotherapy 2016. [DOI: 10.1016/j.physio.2016.10.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Forgrave R, Donaghy J, Fisher A, Rowe M. Survival kinetics of Mycobacterium bovis
during manufacture and ripening of raw milk Cheddar and Caerphilly cheese produced on a laboratory-scale. J Appl Microbiol 2016; 121:1457-1468. [DOI: 10.1111/jam.13278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 08/05/2016] [Accepted: 08/22/2016] [Indexed: 10/21/2022]
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Jensen B, Fisher A, Gibby J, Kaltman S. The New Paradigm in Medical Modeling: Utilizing Consumer-Level Desktop 3D Printers. J Oral Maxillofac Surg 2016. [DOI: 10.1016/j.joms.2016.06.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Heinrich M, Fisher A, Paton B, McCourt O, Beeken RJ, Hackshaw A, Wardle J, Yong K. Lifestyle in Multiple Myeloma - a longitudinal cohort study protocol. BMC Cancer 2016; 16:387. [PMID: 27377407 PMCID: PMC4932746 DOI: 10.1186/s12885-016-2407-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 06/17/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Deterioration in bone health is one of the presenting symptoms of Multiple Myeloma (MM), a cancer of plasma cells. As a consequence of this condition, patients suffer bone pain and bone damage and report cancer-related fatigue, resulting in deterioration in their quality of life. Evidence in patients with solid tumours shows promise for the positive effects of physical activity on quality of life. However, in the case of patients with MM a better understanding of the association between physical fitness and quality of life factors is still required. Therefore, this cohort study aims to objectively and longitudinally assess activity and fitness levels in patients with MM in order to explore their role in bone health, fatigue and quality of life for this patient population. METHODS/DESIGN The study is a prospective cohort study of MM patients in remission to assess physical activity, fatigue and bone health. Clinical markers of health, self-reported measures of psychological and physical well-being, and lifestyle behaviours are assessed at baseline, 3, 6 and 12 months. At each time point, patients complete cardiopulmonary exercise testing (CPET) along with a series of objective tests to assess physical fitness (eg accelerometry) and a number of self-report measures. A complementary qualitative study will be carried out in order to explore patients' desire for lifestyle advice and when in their cancer journey they deem such advice to be useful. DISCUSSION This study will be the first to prospectively and longitudinally explore associations between physical fitness and well-being, bone health, and fatigue (along with a number of other physical and clinical outcomes) in a cohort of patients with MM with the use of objective measures. The findings will also help to identify time points within the MM pathway at which physical activity interventions may be introduced for maximum benefit.
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Magnúsdóttir R, Fisher A, Chenu C, Upton N. Reversal of thermal and mechanical allodynia with pregabalin in a mouse model of oxaliplatin-induced peripheral neuropathy. Scand J Pain 2016. [DOI: 10.1016/j.sjpain.2016.05.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Abstract
Aims
Chemotherapy-induced peripheral neuropathy (CIPN) is a dose limiting side effect in the use of the platinum-based antineoplastic drug oxaliplatin as a treatment for colorectal cancer. Currently there is no treatment available to reverse the neurotoxicity which presents as pain, sensory loss and cold allodynia in up to 80% of patients. The aim of this study is to investigate if pregabalin can reverse the allodynia caused by oxaliplatin in CIPN.
Methods
CIPN was induced in 10 male C57BL/6 mice (6 weeks-old) with a single intraperitoneal injection of oxaliplatin (15 mg/kg i.p.). Signs of thermal and mechanical allodynia were assessed from baseline to 20 days after injection by Cold/Hot plate (Bioseb, France) at 20 °C and hand-held von Frey (vF) hairs of gradually increasing weights. Pregabalin (3 mg/kg and 10 mg/kg p.o.) was administered to treat CIPN.
Results
Mechanical and thermal allodynia were established 3 days post-oxaliplatin injection and remained stable for 14 days. At day 15, pregabalin (3 mg/kg p.o.) reversed mechanical allodynia to baseline scores at 2 h (H) post-dosing and thermal allodynia at 1 and 2H post-dosing. Following a 2-day wash out where scores returned to neuropathic baseline, pregabalin (10 mg/kg p.o.) reverted scores for mechanical and thermal allodynia to baseline scores at both 1 and 2H. Thermal testing was performed either immediately after vF or alone and our results were similar, showing no iatrogenic effects of vF on thermal sensitivity. Correlation analysis of the responses to thermal and mechanical stimuli showed no significant trend, indicating that oxaliplatin-induced peripheral neuropathy affects the mechanical and thermal modalities in different ways.
Conclusion
Oxaliplatin-induced peripheral neuropathy as measured by thermal and mechanical allodynia is reversible by a single dose of pregabalin.
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 642720. RM is funded by a Marie Sklodowska-Curie grant agreement No. 642720 doing a joint PhD with the Royal Veterinary Collage and Transpharmation Ltd. AF and NU are employees of Transpharmation Ltd.
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Wendt R, Erwin W, Fisher A, Jones S, Jimenez S, Wong F, Jessop A. SU-G-IeP4-05: Experience with a Practical Approach to the Release of Radioactive Patients from Radiation Safety Isolation. Med Phys 2016. [DOI: 10.1118/1.4957100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Masters ND, Fisher A, Kalantar D, Stölken J, Smith C, Vignes R, Burns S, Doeppner T, Kritcher A, Park HS. Debris and shrapnel assessments for National Ignition Facility targets and diagnostics. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/717/1/012108] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Miller R, Hartog B, Frew J, Parry G, Fisher A, Corris P, Meachery G, Lordan J. Total Lymphoid Irradiation (TLI) for the Management of Bronchiolitis Obliterans Syndrome (BOS) Post Lung Transplant: A Single Centre Experience. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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van Setten J, de Jonge N, Holmes M, Khush K, Sweitzer N, Garcia-Pavia P, Rossano J, Dries D, Potena L, Zuckermann A, Christie J, Wilkes D, Lederer D, Meyer K, Glanville A, Corris P, Fisher A, Palmer S, Belperio J, de Weger R, Otten H, van de Graaf E, Keating B, Asselbergs F. The Role of Loss-of-Function Mutations on Death and Development of Rejection in HTX/LTX Patients. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Smith L, McCourt O, Sawyer A, Ucci M, Marmot A, Wardle J, Fisher A. A review of occupational physical activity and sedentary behaviour correlates. Occup Med (Lond) 2016; 66:185-92. [DOI: 10.1093/occmed/kqv164] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Laidsaar-Powell R, Butow P, Bu S, Fisher A, Juraskova I. Oncologists’ and oncology nurses’ attitudes and practices towards family involvement in cancer consultations. Eur J Cancer Care (Engl) 2016; 26. [DOI: 10.1111/ecc.12470] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2016] [Indexed: 12/01/2022]
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Fisher A, Beeken RJ, Heinrich M, Williams K, Wardle J. Health behaviours and fear of cancer recurrence in 10 969 colorectal cancer (CRC) patients. Psychooncology 2016; 25:1434-1440. [PMID: 26863926 PMCID: PMC5157776 DOI: 10.1002/pon.4076] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 12/18/2015] [Accepted: 12/18/2015] [Indexed: 11/22/2022]
Abstract
Background This study aimed to examine whether fear of cancer recurrence (FCR) was related to two important health behaviours (physical activity and smoking) in a large sample of colorectal cancer patients. Methods Ten thousand nine hundred sixty nine patients, diagnosed in 2010–11, and in remission in 2013, completed the ‘Living with and Beyond Colorectal Cancer’ survey. The survey included purpose‐designed questions on fear of recurrence (‘I have fear about my cancer coming back’), demographics, treatment and health variables. Physical activity (PA) was recorded as number of days per week doing at least 30 min of brisk activity, and smoking status was reported. Results Fifty per cent of respondents reported fear of their cancer returning. More women than men ((Odds Ratio; (OR) 1.58; 95% confidence interval (CI) 1.46, 1.71)) more younger than older patients (OR 2.53; CI 2.33, 2.74) and slightly more patients from deprived areas (OR 1.14, 1.05, 1.23) reported FCR. Independently of demographics and treatment, compared with those meeting the PA guidelines, those who were doing only ‘some’ (OR 1.22; CI 1.11, 1.35) or ‘no’ PA (OR 1.28; CI 1.15, 1.42) reported higher FCR. Compared with non‐smokers, more current smokers reported fear (OR 1.34, CI 1.10, 1.58) and slightly more ex‐smokers (OR 1.11; CI 1.04, 1.21). Conclusions This cross‐sectional study provided novel data showing that colorectal cancer survivors with poorer health behaviours (those with lower activity levels and those who smoked) were more likely to experience FCR. Future research should replicate findings using detailed measures of fear, objective measures of health behaviours and identify directions of associations. © 2016 The Authors. Psycho‐Oncology Published by John Wiley & Sons Ltd.
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Lincoln C, Crilly J, Scuffham P, Timms J, Becker K, van Buuren N, Fisher A, Murphy D, Green D. Reducing risks and improving health outcomes for prisoners in watch houses: Do emergency department nurses in the custodial setting make a difference? Pathology 2016. [DOI: 10.1016/j.pathol.2015.12.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Grande M, Jansen FAR, Blumenfeld YJ, Fisher A, Odibo AO, Haak MC, Borrell A. Genomic microarray in fetuses with increased nuchal translucency and normal karyotype: a systematic review and meta-analysis. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2015; 46:650-658. [PMID: 25900824 DOI: 10.1002/uog.14880] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 04/09/2015] [Accepted: 04/10/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To estimate the incremental yield of detecting copy number variants (CNVs) by genomic microarray over karyotyping in fetuses with increased nuchal translucency (NT) diagnosed by first-trimester ultrasound. METHODS This was a systematic review conducted in accordance with PRISMA criteria. We searched PubMed, Ovid MEDLINE and Web of Science for studies published between January 2009 and January 2015 that described CNVs in fetuses with increased NT, usually defined as ≥ 3.5 mm, and normal karyotype. Search terms included: fetal or prenatal, nuchal translucency or cystic hygroma or ultrasound anomaly, array comparative genomic hybridization or copy number variants, with related search terms. Risk differences were pooled to estimate the overall and stratified microarray incremental yield using RevMan. Quality assessment of included studies was performed using the Quality Assessment tool for Diagnostic Accuracy Studies (QUADAS-2) checklist. RESULTS Seventeen studies met the inclusion criteria for analysis. Meta-analysis indicated an incremental yield of 5.0% (95% CI, 2.0-8.0%) for the detection of CNVs using microarray when pooling results. Stratified analysis of microarray results demonstrated a 4.0% (95% CI, 2.0-7.0%) incremental yield in cases of isolated NT and 7.0% (95% CI, 2.0-12.0%) when other malformations were present. The most common pathogenic CNVs reported were 22q11.2 deletion, 22q11.2 duplication, 10q26.12q26.3 deletion and 12q21q22 deletion. The pooled prevalence for variants of uncertain significance was 1%. CONCLUSION The use of genomic microarray provides a 5.0% incremental yield of detecting CNVs in fetuses with increased NT and normal karyotype.
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McDonald L, Wardle J, Llewellyn CH, Johnson L, van Jaarsveld CHM, Syrad H, Fisher A. Sleep and nighttime energy consumption in early childhood: a population-based cohort study. Pediatr Obes 2015; 10:454-60. [PMID: 25565402 PMCID: PMC4737211 DOI: 10.1111/ijpo.12006] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 11/24/2014] [Accepted: 11/26/2014] [Indexed: 12/17/2022]
Abstract
BACKGROUND Shorter sleep is a risk factor for weight gain in young children. Experimental studies show that sleep deprivation is associated with higher nighttime energy intake, but no studies have examined the patterning of energy intake in relation to nighttime sleep duration in young children. OBJECTIVES The objectives of the study were to test the hypothesis that shorter-sleeping children would show higher nighttime energy intake and to examine whether the additional calories were from drinks, snacks or meals. METHODS Participants were 1278 families from the Gemini twin cohort, using data from one child per family selected at random to avoid clustering effects. Nighttime sleep duration was measured at 16 months of age using the Brief Infant Sleep Questionnaire. Energy intake by time of day and eating episode (meal, snack, drink) were derived from 3-day diet diaries completed when children were 21 months. RESULTS Consistent with our hypothesis, shorter-sleeping children consumed more calories at night only (linear trend P < 0.001), with those sleeping <10 h consuming on average 120 calories (15.2% of daily intake) more at night than those sleeping ≥13 h. The majority of nighttime intake was from milk drinks. Associations remained after adjusting for age, sex, birth weight, gestational age, maternal education, weight and daytime sleep. CONCLUSIONS Shorter-sleeping, young children consume more calories, predominantly at night, and from milk drinks. Parents should be aware that providing milk drinks at night may contribute to excess intake. This provides a clear target for intervention that may help address associations between sleep and weight observed in later childhood.
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Abelson Z, Gad R, Bar-Ad S, Fisher A. Anomalous Diffraction in Cold Magnetized Plasma. PHYSICAL REVIEW LETTERS 2015; 115:143901. [PMID: 26551813 DOI: 10.1103/physrevlett.115.143901] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Indexed: 06/05/2023]
Abstract
Cold magnetized plasma possesses an anisotropic permittivity tensor with a unique dispersion relation that for adequate electron density and magnetic field results in anomalous diffraction of a right-hand circularly polarized beam. In this work, we demonstrate experimentally anomalous diffraction of a microwave beam in plasma. Additionally, decreasing the electron density enables observation of the transition of the material from a hyperbolic to a standard material. Manipulation of the control parameters will enable plasma to serve as a reconfigurable metamaterial-like medium.
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