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Zhang H, Gleeson M, Ye N, Pavarelli N, Ouyang X, Zhao J, Kavanagh N, Robert C, Yang H, Morrissey PE, Thomas K, Gocalinska A, Chen Y, Bradley T, Wooler JP, Hayes JR, Numkam Fokoua E, Li Z, Alam SU, Poletti F, Petrovich MN, Richardson DJ, Kelly B, O'Carroll J, Phelan R, Pelucchi E, O'Brien P, Peters F, Corbett B, Gunning F. Dense WDM transmission at 2 μm enabled by an arrayed waveguide grating. OPTICS LETTERS 2015; 40:3308-3311. [PMID: 26176456 DOI: 10.1364/ol.40.003308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We show, for the first time, dense WDM (8×20 Gbit/s) transmission at 2 μm enabled by advanced modulation formats (4-ASK Fast-OFDM) and the development of key components, including a new arrayed waveguide grating (AWGr) at 2 μm. The AWGr shows -12.8±1.78 dB of excess loss with an 18-dB extinction ratio and a thermal tunability of 0.108 nm/°C.
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Steiner F, Evans J, Marsh R, Rigby P, James S, Sutherland K, Wickens R, Nedev N, Kelly B, Tan S. Mouth opening and trismus in patients undergoing curative treatment for head and neck cancer. Int J Oral Maxillofac Surg 2015; 44:292-6. [DOI: 10.1016/j.ijom.2014.12.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 11/03/2014] [Accepted: 12/10/2014] [Indexed: 11/16/2022]
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Zhang H, Kavanagh N, Li Z, Zhao J, Ye N, Chen Y, Wheeler NV, Wooler JP, Hayes JR, Sandoghchi SR, Poletti F, Petrovich MN, Alam SU, Phelan R, O'Carroll J, Kelly B, Grüner-Nielsen L, Richardson DJ, Corbett B, Garcia Gunning FC. 100 Gbit/s WDM transmission at 2 µm: transmission studies in both low-loss hollow core photonic bandgap fiber and solid core fiber. OPTICS EXPRESS 2015; 23:4946-4951. [PMID: 25836529 DOI: 10.1364/oe.23.004946] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We show for the first time 100 Gbit/s total capacity at 2 µm waveband, using 4 × 9.3 Gbit/s 4-ASK Fast-OFDM direct modulation and 4 × 15.7 Gbit/s NRZ-OOK external modulation, spanning a 36.3 nm wide wavelength range. WDM transmission was successfully demonstrated over 1.15 km of low-loss hollow core photonic bandgap fiber (HC-PBGF) and over 1 km of solid core fiber (SCF). We conclude that the OSNR penalty associated with the SCF is minimal, while a ~1-2 dB penalty was observed after the HC-PBGF probably due to mode coupling to higher-order modes.
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Callister R, Giles A, Nasstasia Y, Baker A, Halpin S, Hides L, Dascombe B, Kelly B. Participant expectations of the Healthy Body Healthy Mind exercise program for youth with major depressive disorder. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Macniven R, Kelly B, King L. Unhealthy product sponsorship of Australian national and state sports organisations. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Nasstasia Y, Callister R, Baker A, Halpin S, Hides L, Giles A, Dascombe B, Kelly B, Lewin T. Skilling up with motivational interviewing: ‘Engagement in personal training with motivational interviewing: A guide for physical trainers’. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kelly B. Dum spiro, spero. THE ULSTER MEDICAL JOURNAL 2014; 83:77. [PMID: 25075134 PMCID: PMC4113148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Dixon H, Scully M, Niven P, Kelly B, Chapman K, Donovan R, Martin J, Baur LA, Crawford D, Wakefield M. Effects of nutrient content claims, sports celebrity endorsements and premium offers on pre-adolescent children's food preferences: experimental research. Pediatr Obes 2014; 9:e47-57. [PMID: 23630014 DOI: 10.1111/j.2047-6310.2013.00169.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 01/11/2013] [Accepted: 01/30/2013] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To assess pre-adolescent children's responses to common child-oriented front-of-pack food promotions. METHODS Between-subjects, web-based experiment with four front-of-pack promotion conditions on energy-dense and nutrient-poor (EDNP) foods: no promotion [control]; nutrient content claims; sports celebrity endorsements (male athletes) and premium offers. Participants were 1302 grade 5 and 6 children (mean age 11 years) from Melbourne, Australia. Participants chose their preferred product from a randomly assigned EDNP food pack and comparable healthier food pack then completed detailed product ratings. Child-oriented pack designs with colourful, cartooned graphics, fonts and promotions were used. RESULTS Compared to the control condition, children were more likely to choose EDNP products featuring nutrient content claims (both genders) and sports celebrity endorsements (boys only). Perceptions of nutritional content were enhanced by nutrient content claims. Effects of promotions on some product ratings (but not choice) were negated when children referred to the nutrition information panel. Premium offers did not enhance children's product ratings or choice. CONCLUSIONS Nutrient content claims and sports celebrity endorsements influence pre-adolescent children's preferences towards EDNP food products displaying them. Policy interventions to reduce the impact of unhealthy food marketing to children should limit the use of these promotions.
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Li Z, Heidt AM, Teh PS, Berendt M, Sahu JK, Phelan R, Kelly B, Alam SU, Richardson DJ. High-energy diode-seeded nanosecond 2 μm fiber MOPA systems incorporating active pulse shaping. OPTICS LETTERS 2014; 39:1569-1572. [PMID: 24690840 DOI: 10.1364/ol.39.001569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We report on high-energy nanosecond-pulsed fiber master oscillator power amplifier (MOPA) systems seeded by semiconductor laser diodes at 2 μm incorporating arbitrary pulse-shaping capabilities. Two MOPA systems, one based on direct diode modulation and the second using additional electro-optic modulator (EOM) based shaping, are investigated, with up to 0.5 mJ (25 kHz) and 1.0 mJ (12.5 kHz) pulse energies achieved, respectively, for 100 ns pulses with user-defined pulse shapes. Our results indicate that further energy scaling with shaped output pulses is primarily limited by the maximum pulse peak power available from the seed laser diode and the dynamic range offered by the first generation of EOMs at 2 μm.
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Smith L, Kipps C, Aggio D, Fox P, Robinson N, Trend V, Munnery S, Kelly B, Hamer M. Camden active spaces: does the construction of active school playgrounds influence children's physical activity levels? A longitudinal quasi-experiment protocol. BMJ Open 2014; 4:e005729. [PMID: 25232566 PMCID: PMC4139631 DOI: 10.1136/bmjopen-2014-005729] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION Physical activity is essential for every facet of children's health. However, physical activity levels in British children are low. The school environment is a promising setting to increase children's physical activity but limited empirical evidence exists on how a change in the outdoor physical school environment influences physical activity behaviour. The London Borough of Camden is redesigning seven existing school playgrounds to engage children to become more physically active. The primary aim of this project is to evaluate the impact of the redesigned playgrounds on children's physical activity, well-being and physical function/fitness. METHOD AND ANALYSIS This project will use a longitudinal quasi-experimental design. Seven experimental schools and one control school will take part. One baseline data collection session and two follow-ups will be carried out. Between baseline and follow-up, the experimental school playgrounds will be redesigned. At baseline, a series of fitness tests, anthropometric and questionnaire measurements, and 7-day objective physical activity monitoring (Actigraph accelerometer) will be carried out on children (aged 5–16 years). This will be repeated at follow-up. Changes in overall physical activity levels and levels during different times of the day (eg, school breaks) will be examined. Multilevel regression modelling will be used to analyse the data. ETHICS AND DISSEMINATION The results of this study will be disseminated through peer-review publications and scientific presentations. Ethical approval was obtained through the University College London Research Ethics Committee (Reference number: 4400/002).
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Kelly B. Hibernia. THE ULSTER MEDICAL JOURNAL 2014; 83:1. [PMID: 24757259 PMCID: PMC3992084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Johnson M, Sanchez P, Suominen H, Basilakis J, Dawson L, Kelly B, Hanlen L. Comparing nursing handover and documentation: forming one set of patient information. Int Nurs Rev 2013; 61:73-81. [DOI: 10.1111/inr.12072] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Callister R, Giles A, Nasstasia Y, Baker A, Halpin S, Hides L, Kelly B. 12-weeks supervised exercise training is a feasible and efficacious treatment for reducing depression in youth with major depressive disorder. J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Gardiner DA, Kelly B. Improving rates of intermittent pneumatic compression therapy utilization. Hosp Pract (1995) 2013; 41:40-7. [PMID: 23948620 DOI: 10.3810/hp.2013.08.1067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND The most preventable causes of death in the hospitalized patient are deep vein thrombosis (DVT) and pulmonary embolism. Despite the long-term (> 15 years) availability of evidence-based consensus guidelines for prevention of venous thromboembolism, thromboprophylaxis remains underused. Improving staff and patient utilization of prophylactic treatment for postoperative patients reduces hospital-acquired venous thromboembolism and improves patient outcomes. Anecdotal evidence and observations of intermittent pneumatic compression (IPC) therapy utilization at the authors' institution suggested that ordered IPC therapy was not consistently in use with postsurgical patients. OBJECTIVES We sought to increase the use of IPC devices by all staff on our hospital pilot units and to promote sustained use of IPC devices. METHODS Multiple methodologies were employed to address this issue, including point prevalence audits, root-cause analyses, a nursing survey, and a pilot project on selected surgical units. RESULTS Statistically significant improvements on the pilot units were achieved by implementing a 3-tier interventional plan. CONCLUSION Our pilot project demonstrated that nurse education, patient education, and nurse attention to solving systems issues can significantly improve IPC use in surgical patients.
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Petrovich MN, Poletti F, Wooler JP, Heidt AM, Baddela NK, Li Z, Gray DR, Slavík R, Parmigiani F, Wheeler NV, Hayes JR, Numkam E, Grűner-Nielsen L, Pálsdóttir B, Phelan R, Kelly B, O'Carroll J, Becker M, MacSuibhne N, Zhao J, Gunning FCG, Ellis AD, Petropoulos P, Alam SU, Richardson DJ. Demonstration of amplified data transmission at 2 µm in a low-loss wide bandwidth hollow core photonic bandgap fiber. OPTICS EXPRESS 2013; 21:28559-28569. [PMID: 24514368 DOI: 10.1364/oe.21.028559] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The first demonstration of a hollow core photonic bandgap fiber (HC-PBGF) suitable for high-rate data transmission in the 2 µm waveband is presented. The fiber has a record low loss for this wavelength region (4.5 dB/km at 1980 nm) and a >150 nm wide surface-mode-free transmission window at the center of the bandgap. Detailed analysis of the optical modes and their propagation along the fiber, carried out using a time-of-flight technique in conjunction with spatially and spectrally resolved (S2) imaging, provides clear evidence that the HC-PBGF can be operated as quasi-single mode even though it supports up to four mode groups. Through the use of a custom built Thulium doped fiber amplifier with gain bandwidth closely matched to the fiber's low loss window, error-free 8 Gbit/s transmission in an optically amplified data channel at 2008 nm over 290 m of 19 cell HC-PBGF is reported.
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Brinsden H, Lobstein T, Landon J, Kraak V, Sacks G, Kumanyika S, Swinburn B, Barquera S, Friel S, Hawkes C, Kelly B, L'abbé M, Lee A, Ma J, Macmullen J, Mohan S, Monteiro C, Neal B, Rayner M, Sanders D, Snowdon W, Vandevijvere S, Walker C. Monitoring policy and actions on food environments: rationale and outline of the INFORMAS policy engagement and communication strategies. Obes Rev 2013; 14 Suppl 1:13-23. [PMID: 24074207 DOI: 10.1111/obr.12072] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The International Network for Food and Obesity/non-communicable diseases Research, Monitoring and Action Support (INFORMAS) proposes to collect performance indicators on food policies, actions and environments related to obesity and non-communicable diseases. This paper reviews existing communications strategies used for performance indicators and proposes the approach to be taken for INFORMAS. Twenty-seven scoring and rating tools were identified in various fields of public health including alcohol, tobacco, physical activity, infant feeding and food environments. These were compared based on the types of indicators used and how they were quantified, scoring methods, presentation and the communication and reporting strategies used. There are several implications of these analyses for INFORMAS: the ratings/benchmarking approach is very commonly used, presumably because it is an effective way to communicate progress and stimulate action, although this has not been formally evaluated; the tools used must be trustworthy, pragmatic and policy-relevant; multiple channels of communication will be needed; communications need to be tailored and targeted to decision-makers; data and methods should be freely accessible. The proposed communications strategy for INFORMAS has been built around these lessons to ensure that INFORMAS's outputs have the greatest chance of being used to improve food environments.
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Rayner M, Wood A, Lawrence M, Mhurchu CN, Albert J, Barquera S, Friel S, Hawkes C, Kelly B, Kumanyika S, L'abbé M, Lee A, Lobstein T, Ma J, Macmullan J, Mohan S, Monteiro C, Neal B, Sacks G, Sanders D, Snowdon W, Swinburn B, Vandevijvere S, Walker C. Monitoring the health-related labelling of foods and non-alcoholic beverages in retail settings. Obes Rev 2013; 14 Suppl 1:70-81. [PMID: 24074212 DOI: 10.1111/obr.12077] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Food labelling on food packaging has the potential to have both positive and negative effects on diets. Monitoring different aspects of food labelling would help to identify priority policy options to help people make healthier food choices. A taxonomy of the elements of health-related food labelling is proposed. A systematic review of studies that assessed the nature and extent of health-related food labelling has been conducted to identify approaches to monitoring food labelling. A step-wise approach has been developed for independently assessing the nature and extent of health-related food labelling in different countries and over time. Procedures for sampling the food supply, and collecting and analysing data are proposed, as well as quantifiable measurement indicators and benchmarks for health-related food labelling.
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Kelly B, King L, Baur L, Rayner M, Lobstein T, Monteiro C, Macmullan J, Mohan S, Barquera S, Friel S, Hawkes C, Kumanyika S, L'Abbé M, Lee A, Ma J, Neal B, Sacks G, Sanders D, Snowdon W, Swinburn B, Vandevijvere S, Walker C. Monitoring food and non-alcoholic beverage promotions to children. Obes Rev 2013; 14 Suppl 1:59-69. [PMID: 24074211 DOI: 10.1111/obr.12076] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Food and non-alcoholic beverage marketing is recognized as an important factor influencing food choices related to non-communicable diseases. The monitoring of populations' exposure to food and non-alcoholic beverage promotions, and the content of these promotions, is necessary to generate evidence to understand the extent of the problem, and to determine appropriate and effective policy responses. A review of studies measuring the nature and extent of exposure to food promotions was conducted to identify approaches to monitoring food promotions via dominant media platforms. A step-wise approach, comprising 'minimal', 'expanded' and 'optimal' monitoring activities, was designed. This approach can be used to assess the frequency and level of exposure of population groups (especially children) to food promotions, the persuasive power of techniques used in promotional communications (power of promotions) and the nutritional composition of promoted food products. Detailed procedures for data sampling, data collection and data analysis for a range of media types are presented, as well as quantifiable measurement indicators for assessing exposure to and power of food and non-alcoholic beverage promotions. The proposed framework supports the development of a consistent system for monitoring food and non-alcoholic beverage promotions for comparison between countries and over time.
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Neal B, Sacks G, Swinburn B, Vandevijvere S, Dunford E, Snowdon W, Webster J, Barquera S, Friel S, Hawkes C, Kelly B, Kumanyika S, L'Abbé M, Lee A, Lobstein T, Ma J, Macmullan J, Mohan S, Monteiro C, Rayner M, Sanders D, Walker C. Monitoring the levels of important nutrients in the food supply. Obes Rev 2013; 14 Suppl 1:49-58. [PMID: 24074210 DOI: 10.1111/obr.12075] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A food supply that delivers energy-dense products with high levels of salt, saturated fats and trans fats, in large portion sizes, is a major cause of non-communicable diseases (NCDs). The highly processed foods produced by large food corporations are primary drivers of increases in consumption of these adverse nutrients. The objective of this paper is to present an approach to monitoring food composition that can both document the extent of the problem and underpin novel actions to address it. The monitoring approach seeks to systematically collect information on high-level contextual factors influencing food composition and assess the energy density, salt, saturated fat, trans fats and portion sizes of highly processed foods for sale in retail outlets (with a focus on supermarkets and quick-service restaurants). Regular surveys of food composition are proposed across geographies and over time using a pragmatic, standardized methodology. Surveys have already been undertaken in several high- and middle-income countries, and the trends have been valuable in informing policy approaches. The purpose of collecting data is not to exhaustively document the composition of all foods in the food supply in each country, but rather to provide information to support governments, industry and communities to develop and enact strategies to curb food-related NCDs.
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L'Abbé M, Schermel A, Minaker L, Kelly B, Lee A, Vandevijvere S, Twohig P, Barquera S, Friel S, Hawkes C, Kumanyika S, Lobstein T, Ma J, Macmullan J, Mohan S, Monteiro C, Neal B, Rayner M, Sacks G, Sanders D, Snowdon W, Swinburn B, Walker C. Monitoring foods and beverages provided and sold in public sector settings. Obes Rev 2013; 14 Suppl 1:96-107. [PMID: 24074214 DOI: 10.1111/obr.12079] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This paper outlines a step-wise framework for monitoring foods and beverages provided or sold in publicly funded institutions. The focus is on foods in schools, but the framework can also be applied to foods provided or sold in other publicly funded institutions. Data collection and evaluation within this monitoring framework will consist of two components. In component I, information on existing food or nutrition policies and/or programmes within settings would be compiled. Currently, nutrition standards and voluntary guidelines associated with such policies/programmes vary widely globally. This paper, which provides a comprehensive review of such standards and guidelines, will facilitate institutional learnings for those jurisdictions that have not yet established them or are undergoing review of existing ones. In component II, the quality of foods provided or sold in public sector settings is evaluated relative to existing national or sub-national nutrition standards or voluntary guidelines. Where there are no (or only poor) standards or guidelines available, the nutritional quality of foods can be evaluated relative to standards of a similar jurisdiction or other appropriate standards. Measurement indicators are proposed (within 'minimal', 'expanded' and 'optimal' approaches) that can be used to monitor progress over time in meeting policy objectives, and facilitate comparisons between countries.
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Friel S, Hattersley L, Snowdon W, Thow AM, Lobstein T, Sanders D, Barquera S, Mohan S, Hawkes C, Kelly B, Kumanyika S, L'Abbe M, Lee A, Ma J, Macmullan J, Monteiro C, Neal B, Rayner M, Sacks G, Swinburn B, Vandevijvere S, Walker C. Monitoring the impacts of trade agreements on food environments. Obes Rev 2013; 14 Suppl 1:120-34. [PMID: 24074216 DOI: 10.1111/obr.12081] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The liberalization of international trade and foreign direct investment through multilateral, regional and bilateral agreements has had profound implications for the structure and nature of food systems, and therefore, for the availability, nutritional quality, accessibility, price and promotion of foods in different locations. Public health attention has only relatively recently turned to the links between trade and investment agreements, diets and health, and there is currently no systematic monitoring of this area. This paper reviews the available evidence on the links between trade agreements, food environments and diets from an obesity and non-communicable disease (NCD) perspective. Based on the key issues identified through the review, the paper outlines an approach for monitoring the potential impact of trade agreements on food environments and obesity/NCD risks. The proposed monitoring approach encompasses a set of guiding principles, recommended procedures for data collection and analysis, and quantifiable 'minimal', 'expanded' and 'optimal' measurement indicators to be tailored to national priorities, capacity and resources. Formal risk assessment processes of existing and evolving trade and investment agreements, which focus on their impacts on food environments will help inform the development of healthy trade policy, strengthen domestic nutrition and health policy space and ultimately protect population nutrition.
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Swinburn B, Sacks G, Vandevijvere S, Kumanyika S, Lobstein T, Neal B, Barquera S, Friel S, Hawkes C, Kelly B, L'abbé M, Lee A, Ma J, Macmullan J, Mohan S, Monteiro C, Rayner M, Sanders D, Snowdon W, Walker C. INFORMAS (International Network for Food and Obesity/non-communicable diseases Research, Monitoring and Action Support): overview and key principles. Obes Rev 2013; 14 Suppl 1:1-12. [PMID: 24074206 DOI: 10.1111/obr.12087] [Citation(s) in RCA: 342] [Impact Index Per Article: 31.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Non-communicable diseases (NCDs) dominate disease burdens globally and poor nutrition increasingly contributes to this global burden. Comprehensive monitoring of food environments, and evaluation of the impact of public and private sector policies on food environments is needed to strengthen accountability systems to reduce NCDs. The International Network for Food and Obesity/NCDs Research, Monitoring and Action Support (INFORMAS) is a global network of public-interest organizations and researchers that aims to monitor, benchmark and support public and private sector actions to create healthy food environments and reduce obesity, NCDs and their related inequalities. The INFORMAS framework includes two 'process' modules, that monitor the policies and actions of the public and private sectors, seven 'impact' modules that monitor the key characteristics of food environments and three 'outcome' modules that monitor dietary quality, risk factors and NCD morbidity and mortality. Monitoring frameworks and indicators have been developed for 10 modules to provide consistency, but allowing for stepwise approaches ('minimal', 'expanded', 'optimal') to data collection and analysis. INFORMAS data will enable benchmarking of food environments between countries, and monitoring of progress over time within countries. Through monitoring and benchmarking, INFORMAS will strengthen the accountability systems needed to help reduce the burden of obesity, NCDs and their related inequalities.
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Vandevijvere S, Monteiro C, Krebs-Smith SM, Lee A, Swinburn B, Kelly B, Neal B, Snowdon W, Sacks G. Monitoring and benchmarking population diet quality globally: a step-wise approach. Obes Rev 2013; 14 Suppl 1:135-49. [PMID: 24074217 DOI: 10.1111/obr.12082] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
INFORMAS (International Network for Food and Obesity/non-communicable diseases Research, Monitoring and Action Support) aims to monitor and benchmark the healthiness of food environments globally. In order to assess the impact of food environments on population diets, it is necessary to monitor population diet quality between countries and over time. This paper reviews existing data sources suitable for monitoring population diet quality, and assesses their strengths and limitations. A step-wise framework is then proposed for monitoring population diet quality. Food balance sheets (FBaS), household budget and expenditure surveys (HBES) and food intake surveys are all suitable methods for assessing population diet quality. In the proposed 'minimal' approach, national trends of food and energy availability can be explored using FBaS. In the 'expanded' and 'optimal' approaches, the dietary share of ultra-processed products is measured as an indicator of energy-dense, nutrient-poor diets using HBES and food intake surveys, respectively. In addition, it is proposed that pre-defined diet quality indices are used to score diets, and some of those have been designed for application within all three monitoring approaches. However, in order to enhance the value of global efforts to monitor diet quality, data collection methods and diet quality indicators need further development work.
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Swinburn B, Vandevijvere S, Kraak V, Sacks G, Snowdon W, Hawkes C, Barquera S, Friel S, Kelly B, Kumanyika S, L'Abbé M, Lee A, Lobstein T, Ma J, Macmullan J, Mohan S, Monteiro C, Neal B, Rayner M, Sanders D, Walker C. Monitoring and benchmarking government policies and actions to improve the healthiness of food environments: a proposed Government Healthy Food Environment Policy Index. Obes Rev 2013; 14 Suppl 1:24-37. [PMID: 24074208 DOI: 10.1111/obr.12073] [Citation(s) in RCA: 146] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Government action is essential to increase the healthiness of food environments and reduce obesity, diet-related non-communicable diseases (NCDs), and their related inequalities. This paper proposes a monitoring framework to assess government policies and actions for creating healthy food environments. Recommendations from relevant authoritative organizations and expert advisory groups for reducing obesity and NCDs were examined, and pertinent components were incorporated into a comprehensive framework for monitoring government policies and actions. A Government Healthy Food Environment Policy Index (Food-EPI) was developed, which comprises a 'policy' component with seven domains on specific aspects of food environments, and an 'infrastructure support' component with seven domains to strengthen systems to prevent obesity and NCDs. These were revised through a week-long consultation process with international experts. Examples of good practice statements are proposed within each domain, and these will evolve into benchmarks established by governments at the forefront of creating and implementing food policies for good health. A rating process is proposed to assess a government's level of policy implementation towards good practice. The Food-EPI will be pre-tested and piloted in countries of varying size and income levels. The benchmarking of government policy implementation has the potential to catalyse greater action to reduce obesity and NCDs.
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Ni Mhurchu C, Vandevijvere S, Waterlander W, Thornton LE, Kelly B, Cameron AJ, Snowdon W, Swinburn B. Monitoring the availability of healthy and unhealthy foods and non-alcoholic beverages in community and consumer retail food environments globally. Obes Rev 2013; 14 Suppl 1:108-19. [PMID: 24074215 DOI: 10.1111/obr.12080] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Retail food environments are increasingly considered influential in determining dietary behaviours and health outcomes. We reviewed the available evidence on associations between community (type, availability and accessibility of food outlets) and consumer (product availability, prices, promotions and nutritional quality within stores) food environments and dietary outcomes in order to develop an evidence-based framework for monitoring the availability of healthy and unhealthy foods and non-alcoholic beverages in retail food environments. Current evidence is suggestive of an association between community and consumer food environments and dietary outcomes; however, substantial heterogeneity in study designs, methods and measurement tools makes it difficult to draw firm conclusions. The use of standardized tools to monitor local food environments within and across countries may help to validate this relationship. We propose a step-wise framework to monitor and benchmark community and consumer retail food environments that can be used to assess density of healthy and unhealthy food outlets; measure proximity of healthy and unhealthy food outlets to homes/schools; evaluate availability of healthy and unhealthy foods in-store; compare food environments over time and between regions and countries; evaluate compliance with local policies, guidelines or voluntary codes of practice; and determine the impact of changes to retail food environments on health outcomes, such as obesity.
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76
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Sacks G, Swinburn B, Kraak V, Downs S, Walker C, Barquera S, Friel S, Hawkes C, Kelly B, Kumanyika S, L'Abbé M, Lee A, Lobstein T, Ma J, Macmullan J, Mohan S, Monteiro C, Neal B, Rayner M, Sanders D, Snowdon W, Vandevijvere S. A proposed approach to monitor private-sector policies and practices related to food environments, obesity and non-communicable disease prevention. Obes Rev 2013; 14 Suppl 1:38-48. [PMID: 24074209 DOI: 10.1111/obr.12074] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Private-sector organizations play a critical role in shaping the food environments of individuals and populations. However, there is currently very limited independent monitoring of private-sector actions related to food environments. This paper reviews previous efforts to monitor the private sector in this area, and outlines a proposed approach to monitor private-sector policies and practices related to food environments, and their influence on obesity and non-communicable disease (NCD) prevention. A step-wise approach to data collection is recommended, in which the first ('minimal') step is the collation of publicly available food and nutrition-related policies of selected private-sector organizations. The second ('expanded') step assesses the nutritional composition of each organization's products, their promotions to children, their labelling practices, and the accessibility, availability and affordability of their products. The third ('optimal') step includes data on other commercial activities that may influence food environments, such as political lobbying and corporate philanthropy. The proposed approach will be further developed and piloted in countries of varying size and income levels. There is potential for this approach to enable national and international benchmarking of private-sector policies and practices, and to inform efforts to hold the private sector to account for their role in obesity and NCD prevention.
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77
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Lee A, Mhurchu CN, Sacks G, Swinburn B, Snowdon W, Vandevijvere S, Hawkes C, L'abbé M, Rayner M, Sanders D, Barquera S, Friel S, Kelly B, Kumanyika S, Lobstein T, Ma J, Macmullan J, Mohan S, Monteiro C, Neal B, Walker C. Monitoring the price and affordability of foods and diets globally. Obes Rev 2013; 14 Suppl 1:82-95. [PMID: 24074213 DOI: 10.1111/obr.12078] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Food prices and food affordability are important determinants of food choices, obesity and non-communicable diseases. As governments around the world consider policies to promote the consumption of healthier foods, data on the relative price and affordability of foods, with a particular focus on the difference between 'less healthy' and 'healthy' foods and diets, are urgently needed. This paper briefly reviews past and current approaches to monitoring food prices, and identifies key issues affecting the development of practical tools and methods for food price data collection, analysis and reporting. A step-wise monitoring framework, including measurement indicators, is proposed. 'Minimal' data collection will assess the differential price of 'healthy' and 'less healthy' foods; 'expanded' monitoring will assess the differential price of 'healthy' and 'less healthy' diets; and the 'optimal' approach will also monitor food affordability, by taking into account household income. The monitoring of the price and affordability of 'healthy' and 'less healthy' foods and diets globally will provide robust data and benchmarks to inform economic and fiscal policy responses. Given the range of methodological, cultural and logistical challenges in this area, it is imperative that all aspects of the proposed monitoring framework are tested rigorously before implementation.
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78
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Kelly B. Memories. THE ULSTER MEDICAL JOURNAL 2013; 82:133. [PMID: 24505145 PMCID: PMC3913400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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79
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James B, Kelly B. The abdominal radiograph. THE ULSTER MEDICAL JOURNAL 2013; 82:179-87. [PMID: 24505155 PMCID: PMC3913410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 08/08/2013] [Indexed: 11/28/2022]
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80
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Heidt AM, Li Z, Sahu J, Shardlow PC, Becker M, Rothhardt M, Ibsen M, Phelan R, Kelly B, Alam SU, Richardson DJ. 100 kW peak power picosecond thulium-doped fiber amplifier system seeded by a gain-switched diode laser at 2 μm. OPTICS LETTERS 2013; 38:1615-1617. [PMID: 23938887 DOI: 10.1364/ol.38.001615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report on the generation of picosecond pulses at 2 μm directly from a gain-switched discrete-mode diode laser and their amplification in a multistage thulium-doped fiber amplifier chain. The system is capable of operating at repetition rates in the range of 2 MHz-1.5 GHz without change of configuration, delivering high-quality 33 ps pulses with up to 3.5 μJ energy and 100 kW peak power, as well as up to 18 W of average power. These results represent a major technological advance and a 1 order of magnitude increase in peak power and pulse energy compared to existing picosecond sources at 2 μm.
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81
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Kelly B. Benediction. THE ULSTER MEDICAL JOURNAL 2013; 82:1. [PMID: 24082281 PMCID: PMC3756860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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82
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McNamee J, Flynn P, O’Leary S, Love M, Kelly B. Imaging in cauda equina syndrome--a pictorial review. THE ULSTER MEDICAL JOURNAL 2013; 82:100-8. [PMID: 24082289 PMCID: PMC3756868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 01/01/2013] [Indexed: 10/31/2022]
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83
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Tannahill GM, Curtis AM, Adamik J, Palsson-McDermott EM, McGettrick AF, Goel G, Frezza C, Bernard NJ, Kelly B, Foley NH, Zheng L, Gardet A, Tong Z, Jany SS, Corr SC, Haneklaus M, Caffrey BE, Pierce K, Walmsley S, Beasley FC, Cummins E, Nizet V, Whyte M, Taylor CT, Lin H, Masters SL, Gottlieb E, Kelly VP, Clish C, Auron PE, Xavier RJ, O'Neill LAJ. Succinate is an inflammatory signal that induces IL-1β through HIF-1α. Nature 2013; 496:238-42. [PMID: 23535595 DOI: 10.1038/nature11986] [Citation(s) in RCA: 2533] [Impact Index Per Article: 230.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Accepted: 02/05/2013] [Indexed: 01/27/2023]
Abstract
Macrophages activated by the Gram-negative bacterial product lipopolysaccharide switch their core metabolism from oxidative phosphorylation to glycolysis. Here we show that inhibition of glycolysis with 2-deoxyglucose suppresses lipopolysaccharide-induced interleukin-1β but not tumour-necrosis factor-α in mouse macrophages. A comprehensive metabolic map of lipopolysaccharide-activated macrophages shows upregulation of glycolytic and downregulation of mitochondrial genes, which correlates directly with the expression profiles of altered metabolites. Lipopolysaccharide strongly increases the levels of the tricarboxylic-acid cycle intermediate succinate. Glutamine-dependent anerplerosis is the principal source of succinate, although the 'GABA (γ-aminobutyric acid) shunt' pathway also has a role. Lipopolysaccharide-induced succinate stabilizes hypoxia-inducible factor-1α, an effect that is inhibited by 2-deoxyglucose, with interleukin-1β as an important target. Lipopolysaccharide also increases succinylation of several proteins. We therefore identify succinate as a metabolite in innate immune signalling, which enhances interleukin-1β production during inflammation.
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84
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Kelly B. Reading between the lines. THE ULSTER MEDICAL JOURNAL 2013; 82:1. [PMID: 23620621 PMCID: PMC3632839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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85
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Savage T, Kelly B. Interpretation of radiographs performed for investigation of upper limb injury. THE ULSTER MEDICAL JOURNAL 2013; 82:26-30. [PMID: 23620628 PMCID: PMC3632846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 12/06/2012] [Indexed: 11/26/2022]
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86
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Callister R, Giles A, Dascombe B, Baker A, Nasstasia Y, Halpin S, Hides L, Yong C, Kelly B. Healthy Body Healthy Mind: Development of an exercise intervention for the management of youth depression. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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87
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Flanigan K, Gastier-Foster J, Pyatt R, Rosales X, Thrush D, Kneile K, Mendell J, Kelly B, Newsom D, Hu P, White P. D.P.4 Comparison of commercially-available exome capture kits in the diagnosis of neuromuscular disorders. Neuromuscul Disord 2012. [DOI: 10.1016/j.nmd.2012.06.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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88
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Dixon H, Scully M, Kelly B, Chapman K, Donovan R, Martin J, Baur L, Crawford D, Maloney S, Wakefield M. Can counter-advertising reduce parent's susceptibility to nutrition content claims and sports celebrity endorsements on energy-dense, nutrient poor foods? Experimental research. Obes Res Clin Pract 2012. [DOI: 10.1016/j.orcp.2012.08.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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89
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Kelly B. The chest radiograph. THE ULSTER MEDICAL JOURNAL 2012; 81:143-8. [PMID: 23620614 PMCID: PMC3632825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 09/01/2012] [Indexed: 11/27/2022]
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90
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Kelly B. Regarding Parnassus. THE ULSTER MEDICAL JOURNAL 2012; 81:105-6. [PMID: 23620605 PMCID: PMC3632816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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91
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Englesbe MJ, Kelly B, Goss J, Fecteau A, Mitchell J, Andrews W, Krapohl G, Magee JC, Mazariegos G, Horslen S, Bucuvalas J. Reducing pediatric liver transplant complications: a potential roadmap for transplant quality improvement initiatives within North America. Am J Transplant 2012; 12:2301-6. [PMID: 22883313 PMCID: PMC3429726 DOI: 10.1111/j.1600-6143.2012.04204.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Though robust clinical data are available within transplantation, these data are not used for broad-based, multicentered quality improvement initiates. This article describes a targeted quality improvement initiative within the Studies of Pediatric Liver Transplantation (SPLIT) Registry. Using standard statistical techniques and clinical expertise to adjust for data and statistical reliability, we identified the pediatric liver transplant centers in North America with the lowest hepatic artery thrombosis rate and biliary complication rates. A survey was completed to establish current practices within the entire SPLIT group. Surgeons from the highest performing centers presented a detailed, technically oriented overview of their current practices. The presentations and discussion that followed were recorded and form the basis of the best practices described herein. We frame this work as a unique six-step approach roadmap that may serve as an efficient and cost effective model for novel broad-based quality improvement initiatives within transplantation.
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92
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Duax WL, Kelly B, Merriman A, Xu I. Fungal ribosomal proteins trace evolution from bacteria to metazoa and archaea. Acta Crystallogr A 2012. [DOI: 10.1107/s0108767312099515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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93
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Lazdam M, de la Horra A, Diesch J, Francis J, Kenworthy Y, Shore A, Redman C, Neubauer S, Kharbanda R, Alp N, Kelly B, Leeson P. 143 Long-term cardiac and vascular phenotype of young women with pregnancies complicated by preeclampsia. BRITISH HEART JOURNAL 2012. [DOI: 10.1136/heartjnl-2012-301877b.143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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94
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Kelly B. Humour me. THE ULSTER MEDICAL JOURNAL 2012; 81:69. [PMID: 23526849 PMCID: PMC3605536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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95
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Kelly B, Foster C. Should female genital cosmetic surgery and genital piercing be regarded ethically and legally as female genital mutilation? BJOG 2012; 119:389-92. [DOI: 10.1111/j.1471-0528.2011.03260.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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96
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Kelly B. My learned friends. THE ULSTER MEDICAL JOURNAL 2012; 81:1-2. [PMID: 23536731 PMCID: PMC3609673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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97
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Spence RAJ, Dasari B, Love M, Kelly B, Taylor M. Overview of the investigation and management of cystic neoplasms of the pancreas. Dig Surg 2011; 28:386-97. [PMID: 22179508 DOI: 10.1159/000334758] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Accepted: 10/28/2011] [Indexed: 01/17/2023]
Abstract
BACKGROUND Cystic neoplasms of the pancreas contribute to 10-20% of pancreatic tumours. Malignant cystic tumours of the pancreas behave similar to adenocarcinomas and thus warrant aggressive management. However, certain benign cystic neoplasms do not require operative intervention. It is, therefore, important to differentiate benign lesions from malignant lesions and from those with malignant potential. AIMS To provide an overview of the role of radiological investigations in the management of cystic neoplasms of the pancreas, with emphasis on the characteristic features of aggressive tumours. The role of different imaging modalities is discussed, and an investigative algorithm suggested. METHODS A literature review was carried out on Medline, Cochrane library, and PubMed using the MeSH terms 'pancreas' and 'cysts' to source relevant papers. Search criteria were limited to English literature, meta-analyses, systematic reviews, prospective and retrospective case series, published during or after 1998. DISCUSSION Each pancreatic cystic lesion has characteristic radiological findings. However, the diagnostic accuracy of individual imaging techniques is still limited. A combination of imaging modalities is essential for preoperative diagnosis. CT complemented by endoscopic ultrasound and cyst fluid analysis appears to be the most promising investigation in diagnosing cystic neoplasms. Follow-up with serial imaging is useful for lesions of uncertain aetiology.
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98
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Clos AL, Lasagna-Reeves CA, Castillo-Carranza DL, Sengupta U, Jackson GR, Kelly B, Beachkofsky TM, Kayed R. Formation of immunoglobulin light chain amyloid oligomers in primary cutaneous nodular amyloidosis. Br J Dermatol 2011; 165:1349-54. [PMID: 21729025 DOI: 10.1111/j.1365-2133.2011.10508.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Primary cutaneous nodular amyloidosis (PCNA) is thought to be a plasma cell dyscrasia. The amyloid deposits are found in the dermis and subcutis, and they contain clonal immunoglobulin light chains, produced by a local proliferation of plasma cells. New insights into amyloid diseases have revealed that the pathology is due more to the presence of small, misfolded protein species termed oligomers than to the deposition of fibrillar material. OBJECTIVES To demonstrate the presence of amyloid oligomers in PCNA and to provide evidence that cutaneous amyloid diseases share a common pathogenic pathway similar to other amyloid diseases. METHODS Immunohistochemical staining with conformation-specific and sequence-specific antibodies was used to localize different amyloid species of light chain immunoglobulins in a case of PCNA. Additionally, in vitro characterization of immunoglobulin oligomers and fibrils was performed to determine, through toxicity studies in a human keratinocyte cell line, which amyloidogenic form of the immunoglobulin is toxic in PCNA. RESULTS Amyloid oligomers were identified in PCNA. Oligomers were mainly formed by lambda light chain immunoglobulins, and kappa light chain oligomers were detected in lesser amounts. Amyloid species were detected intra- and extracellularly. In addition, amyloid oligomers and fibrils, derived from unknown protein sources, were detected. This finding suggests that immunoglobulin amyloids can act as seeds capable of inducing the aggregation of heterogeneous proteins in the skin. Furthermore, cytotoxicity studies demonstrated that immunoglobulin oligomers, but not monomers or fibrils, are toxic to human keratinocytes. CONCLUSIONS These data indicate that PCNA has common pathways with other amyloid diseases with respect to protein misfolding and pathogenesis. Immunoglobulin oligomers may prove to be targets for the treatment of PCNA.
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99
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Watson W, Chapman K, Kelly B, King L, Hughes C, Wellard L, Louie J, Gill T. “We’re all so busy and need energy”—Do shoppers understand the term ‘energy’? Obes Res Clin Pract 2011. [DOI: 10.1016/j.orcp.2011.08.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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100
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Robinson T, Hills D, Kelly B. The evaluation of an online orientation to rural mental health practice in Australia. J Psychiatr Ment Health Nurs 2011; 18:629-36. [PMID: 21848598 DOI: 10.1111/j.1365-2850.2011.01712.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
The aim of this study was to develop and evaluate an online, interprofessional education programme for clinicians commencing work in rural mental health services in New South Wales, Australia. Twenty-eight participants, including nurses, psychologists, social workers and occupational therapists, completed a 24-week education programme (Introduction to Rural Mental Health Practice programme) that orientated clinicians to working in rural settings. The online programme included an orientation to online learning and clinical skills such as risk assessment, therapeutic communication and de-escalation skills applied in rural settings. Twenty-four participants provided pre- and post-evaluation responses that were matched and analysed using paired t-tests to identify any significant differences in mean scores across the domains of interest. Fifty per cent (n= 13) of participants had a background in nursing and 49% were allied health clinicians (psychologists, social workers and occupational therapists). Statistically significant improvements (P < 0.05) were detected in participant confidence in responding to common mental health problems, knowledge about the role of different services in rural mental health care, perceived safety of work and perceived self-efficacy in dealing with challenging or aggressive behaviours. The Introduction to Rural Mental Health Practice programme was successful in orienting clinicians to rural mental health but the small sample size highlights the need to evaluate the programme with a larger cohort of rural clinicians. The attrition at the early stages of the study highlights significant challenges in the retention of rural clinicians in online education programmes. Factors that promoted participation and retention included the provision of study leave and orientation to the online environment.
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