703 resultados para obesity prevention


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NI Suicide Prevention Strategy & Action Plan 2006 - 2011

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The overall aim of the strategy is “To reduce the number of accidental deaths and injuries in the home.” OBJECTIVES OF THE STRATEGY The key objectives are: • to reduce home accidents, particularly in those most at risk; • to raise awareness of the causes of home accidents and promote effective preventative measures to reduce such accidents; • to promote and facilitate effective training, skills and knowledge in home accident prevention across all relevant organisations, groups and individuals. These objectives will be met through integrated and effective approaches including: • education and information programmes to promote home safety, and promote a change in public behaviour towards home accident prevention; and • the use of evidence based practice, models of good practice, and by evaluating home accident prevention initiatives. OUTCOMES If successful, implementation of this strategy will lead to a reduction in the number of home accidents and contribute to the outcome “reduction in preventable deaths and diseases and improvement in wellbeing” set out in the Northern Ireland Priorities and Budget 2004-2006.

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OBJECTIVE-Obesity and associated pathologies are major global health problems. Transforming growth factor-beta/Smad3 signaling has been implicated in various metabolic processes, including adipogenesis, insulin expression, and pancreatic beta-cell function. However, the systemic effects of Smad3 deficiency on adiposity and insulin resistance in vivo remain elusive. This study investigated the effects of Smad3 deficiency on whole-body glucose and lipid homeostasis and its contribution to the development of obesity and type 2 diabetes.RESEARCH DESIGN AND METHODS-We compared various metabolic profiles of Smad3-knockout and wild-type mice. We also determined the mechanism by which Smad3 deficiency affects the expression of genes involved in adipogenesis and metabolism. Mice were then challenged with a high-fat diet to study the impact of Smad3 deficiency on the development of obesity and insulin resistance.RESULTS-Smad3-knockout mice exhibited diminished adiposity with improved glucose tolerance and insulin sensitivity. Chromatin immunoprecipitation assay revealed that Smad3 deficiency increased CCAAT/enhancer-binding protein beta-C/EBP homologous protein 10 interaction and exerted a differential regulation on proliferator-activated receptor beta/delta and proliferator-activated receptor gamma expression in adipocytes. Focused gene expression profiling revealed an altered expression of genes involved in adipogenesis, lipid accumulation, and fatty acid beta-oxidation, indicative of altered adipose physiology. Despite reduced physical activity with no modification in food intake, these mutant mice were resistant to obesity and insulin resistance induced by a high-fat diet.CONCLUSIONS-Smad3 is a multifaceted regulator in adipose physiology and the pathogenesis of obesity and type 2 diabetes, suggesting that Smad3 may be a potential target for the treatment of obesity and its associated disorders.

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The treatment of wounds is a challenge that caregivers of all specialities encounter daily in the care of an ageing population and chronically ill patients. An interdisciplinary group has been created in recent years within the Hospices-CHUV to assist caregivers in their care of patients with wounds. This group has developed a variety of tools to assist decision-making and offers a range of continuing education for those employees involved in wound care. The authors describe the approach of the group and the documents produced during the first two years of experience.

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A Healthier Future: A Twenty Year Vision for Health and Wellbeing in Northern Ireland 2005-2025

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The Executive in its Programme for Government under the theme “Working for a Healthier People” gave a commitment to promoting public safety by reducing the number of injuries and deaths caused by accidents at home, at work and on the road. An overarching strategy for children and young people is also being developed, which will set out the vision, values and underlying principles, including general safety, for all children and young people and the long-term goals to make that vision a reality. Consultation Document

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Questionnaire

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Different commercially available plant preparations have been claimed to have anti-obesity action. We investigated the acute effects of oral administration of 12 of these preparations in non-obese women and men. No significant increase in energy expenditure (EE) has been noted after treatment with any of these preparations. No change in respiratory quotient (RQ) was shown, except after treatment with maté (Ilex paraguariensis) extract, where a drop in RQ was observed, indicating a rise in the proportion of fat oxidized. The results suggested the poor potential of these plant preparations in the treatment of obesity, except possibly for the maté extract. Further studies are required to explore the influence of higher dosages of these preparations as well as chronic administration in man.

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Cardiovascular and chronic kidney disease are epidemic throughout industrialized societies. Diabetes leads to premature cardiovascular disease and is regarded by many as the most common etiological factor for chronic kidney disease. Because most studies of blood-pressure lowering agents in people with diabetes and hypertension have been conducted in individuals who already have some target organ damage, it is unclear whether earlier intervention could prevent or delay the onset of renal or systemic vascular disease. In early disease there is only a low possibility of observing cardiovascular or renal events; thus intervention trials in this population must rely on disease markers such as microalbuminuria. Accordingly, the authors review the evidence to support the use of microalbuminuria as a disease marker in diabetic patients based on its strong association with renal and cardiovascular events, and discuss recent trials that examine the impact of preventing or delaying the onset of microalbuminuria.

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OBJECTIVEIncrease in adipose cAMP response binding protein (CREB) activity promotes adipocyte dysfunction and systemic insulin resistance in obese mice. This is achieved by increasing the expression of activating transcription factor 3 (ATF3). In this study we investigated whether impaired expression of the inducible cAMP early repressor (ICER), a transcriptional antagonist of CREB, is responsible for the increased CREB activity in adipocytes of obese mice and humans.RESEARCH DESIGN AND METHODSTotal RNA and nuclear proteins were prepared from visceral adipose tissue (VAT) of human nonobese or obese subjects, and white adipose tissue (WAT) of C57Bl6-Rj mice that were fed with normal or high-fat diet for 16 weeks. The expression of genes was monitored by real-time PCR, Western blotting, and electromobility shift assays. RNA interference was used to silence the expression of Icer.RESULTSThe expression of Icer/ICER was reduced in VAT and WAT of obese humans and mice, respectively. Diminution of Icer/ICER was restricted to adipocytes and was accompanied by a rise of Atf3/ATF3 and diminution of Adipoq/ADIPOQ and Glut4/GLUT4. Silencing the expression of Icer in 3T3-L1 adipocytes mimicked the results observed in human and mice cells and hampered glucose uptake, thus confirming the requirement of Icer for appropriate adipocyte function.CONCLUSIONSImpaired expression of ICER contributes to elevation in CREB target genes and, therefore, to the development of insulin resistance in obesity.

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Glucose-induced thermogenesis was studied in 12 overweight patients (9F and 3M) before (mean body weight +/- s.e.m. 83 +/- 2 kg) and after weight loss (68 +/- 2 kg), and in eight of the same patients following relapse of body weight gain (84 +/- 5 kg). Expressed as a percentage of the energy content of the 100 g oral glucose load, glucose-induced thermogenesis was lower in the overweight before weight loss (6.5 +/- 0.5 per cent, P less than 0.05), after weight loss (3.9 +/- 0.6 per cent, P less than 0.01) and after weight regain (6.3 +/- 0.9 per cent, P less than 0.05) than in a group of lean control subjects, matched for sex and age (8.3 +/- 0.5 per cent). Basal energy expenditure was lower after weight reduction than before (1.16 +/- 0.04 vs 1.41 +/- 0.08 kcal/min, P less than 0.01). In the formerly overweight patients, the combined effect of a decreased basal energy expenditure and an attenuation of glucose induced thermogenesis resulted in a postprandial energy expenditure which was markedly lower than in the overweight state (P less than 0.001). Following relapse of obesity, glucose-induced thermogenesis remained attenuated compared to control subjects. These results suggest that a lowered basal energy expenditure and a reduced glucose-induced thermogenesis contribute to the positive energy balance which results in relapse of body weight gain after cessation of a hypocaloric diet.