289 research outputs found

    Arbeid door jongeren in de agrarische sector : mogelijkheden voor veilig en gezond werken = Employment of younger people in the agricultural sector : possibilities for safe and healthy work

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    An ongoing discussion in the Netherlands between employers and the Labour Inspectorate about the interpretation of legal rules of employing youth in agricultural work situations is addressed. A working group, consisting of representatives of agricultural employers, employees, government, Labour Inspectorate, advisory boards and knowledge workers, has analysed two inspection reports (2003, 2004), interviewed 13 inspectors, and consulted 35 employers of 5 different agricultural branches in 4 workshops to know their (possible) conflicts and solutions.Analysis of the inspection reports showed that a relatively large amount of violations dealt with a lack of the obligatory risk and safety evaluation of the farm, or work-rest registration, or violated the time aspects of labour for younger people. The working group did not address these items and insisted these rules to be obeyed.The evaluation concentrated on the age group 13 to 15 years, and the items mechanized environment, physical load, re-entry after application of herbicides of fungicides, and mental well-being were addressed.Mechanized environment: the present rules exclude youth of 13-15 years old to work in any mechanized environment. Part of the working group suggests the law to be redirected more close to International and European law, and to include safety risk into the rules.Physical load: present rules have limitations for lifting, pushing/pulling and bad working postures, but not for repetitive work. The working group argues the protection level at present not to be too high, and suggests to implement a time limitation for low-level repetitive work for this age group. Furthermore, it is advised to gain knowledge on the time-effects of kneeled work and low-level repetitive movements.Re-entry: the present rules exclude youth of 13-15 years to come in contact with crops that are treated with chemicals within a period of 14 days, irrespective of the substance. The working group advises to develop and implement a herbicide-specific approach, in which the risk, speed of degradation and safety factor for youth should be implemented. Also, the knowledge on the eventual specific effects of chemicals on children should be improved.Well-being: the law does not show many rules regarding this aspect. The working group advises a forced working speed to be prevented by technical and organisational measures. Piece-wages were argued to be not advisable, as stated in the present rules

    Effect of lifestyle intervention plus rosiglitazone or placebo therapy on left ventricular mass assessed with cardiovascular magnetic resonance in the metabolic syndrome

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    <p>Abstract</p> <p>Background</p> <p>To evaluate the effect of lifestyle intervention in conjunction with rosiglitazone or placebo therapy on left ventricular (LV) mass, using cardiovascular magnetic resonance (CMR) in the metabolic syndrome.</p> <p>Methods</p> <p>The present study was a pre-specified substudy of a double-blind randomized controlled trial evaluating the effect of lifestyle intervention in conjunction with rosiglitazone or placebo therapy on carotid artery atherosclerosis in the metabolic syndrome. From this original study population, 10 subjects from the placebo group and 10 from the rosiglitazone group were randomly selected. At baseline and follow-up (52 weeks), clinical and laboratory measurements were assessed and a CMR-examination was performed to evaluate LV mass indexed for body surface area (LV mass-I). Subsequently, the effect of therapy (rosiglitazone vs. placebo) and clinical and laboratory variables on LV mass-I was evaluated.</p> <p>Results</p> <p>In both groups, body mass index, waist circumference, systolic and diastolic blood pressure significantly decreased during follow-up. Interestingly, LV mass-I significantly decreased in the placebo group (48.9 ± 5.3 g/m<sup>2 </sup>vs. 44.3 ± 5.6 g/m<sup>2</sup>, p < 0.001) indicating reverse remodeling, whereas LV mass-I remained unchanged in the rosiglitazone group (54.7 ± 9.9 g/m<sup>2 </sup>vs. 53.7 ± 9.2 g/m<sup>2</sup>, p = 0.3). After correction for systolic and diastolic blood pressure and triglyceride, the kind of therapy (rosiglitazone vs. placebo) remained the only significant predictor of LV mass-I reduction.</p> <p>Conclusions</p> <p>Lifestyle intervention resulted in a reduction of LV mass-I in the metabolic syndrome, indicating reverse remodeling. However, rosiglitazone therapy may have inhibited this positive reverse remodeling.</p> <p>Trial registration</p> <p>Current Controlled Trials <a href="http://www.controlled-trials.com/ISRCTN54951661">ISRCTN54951661</a>.</p

    Angptl4 Protects against Severe Proinflammatory Effects of Saturated Fat by Inhibiting Fatty Acid Uptake into Mesenteric Lymph Node Macrophages

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    SummaryDietary saturated fat is linked to numerous chronic diseases, including cardiovascular disease. Here we study the role of the lipoprotein lipase inhibitor Angptl4 in the response to dietary saturated fat. Strikingly, in mice lacking Angptl4, saturated fat induces a severe and lethal phenotype characterized by fibrinopurulent peritonitis, ascites, intestinal fibrosis, and cachexia. These abnormalities are preceded by a massive acute phase response induced by saturated but not unsaturated fat or medium-chain fat, originating in mesenteric lymph nodes (MLNs). MLNs undergo dramatic expansion and contain numerous lipid-laden macrophages. In peritoneal macrophages incubated with chyle, Angptl4 dramatically reduced foam cell formation, inflammatory gene expression, and chyle-induced activation of ER stress. Induction of macrophage Angptl4 by fatty acids is part of a mechanism that serves to reduce postprandial lipid uptake from chyle into MLN-resident macrophages by inhibiting triglyceride hydrolysis, thereby preventing macrophage activation and foam cell formation and protecting against progressive, uncontrolled saturated fat-induced inflammation

    Assessment of Aortic Pulse Wave Velocity and Cardiac Diastolic Function in Subjects With and Without the Metabolic Syndrome: HDL cholesterol is independently associated with cardiovascular function

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    OBJECTIVE—To evaluate the influence of lipid and glucose metabolism in the metabolic syndrome on aortic pulse wave velocity (PWV) and left ventricular (LV) diastolic function using magnetic resonance imaging (MRI)

    Pioglitazone Decreases Plasma Cholesteryl Ester Transfer Protein Mass, Associated With a Decrease in Hepatic Triglyceride Content, in Patients With Type 2 Diabetes

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    Thiazolidinediones reduce hepatic steatosis and increase HDL cholesterol levels. In mice with human-like lipoprotein metabolism (APOE*3-Leiden.CETP transgenic mice), a decrease in hepatic triglyceride content is associated with a decrease in plasma cholesteryl ester transfer protein (CETP) mass and an increase in HDL levels. Therefore, the aim of the present study was to assess the effects of pioglitazone on CETP mass in patients with type 2 diabetes. We included 78 men with type 2 diabetes (aged 56.5 +/- 0.6 years; HbA1c 7.1 +/- 0.1%) who were randomly assigned to treatment with pioglitazone (30 mg/day) or metformin (2000 mg/day) and matching placebo, in addition to glimepiride. At baseline and after 24 weeks of treatment plasma HDL cholesterol levels and CETP mass were measured, and hepatic triglyceride content was assessed by proton magnetic resonance spectroscopy. RESULTS Pioglitazone decreased hepatic triglyceride content (5.9 [interquartile range 2.6-17.4] versus 4.1 [1.9-12.3]%, P <0.05), decreased plasma CETP mass (2.33 +/- 0.10 vs. 2.06 +/- 0.10 microg/ml, P <0.05), and increased plasma HDL cholesterol level (1.22 +/- 0.05 vs. 1.34 +/- 0.05 mmol/l, P <0.05). Metformin did not significantly change any of these parameters. A decrease in hepatic triglyceride content by pioglitazone is accompanied by a decrease in plasma CETP mass and associated with an increase in HDL cholesterol levels. These results in patients with type 2 diabetes fully confirm recent findings in mic

    Plasma Apolipoprotein CI and CIII Levels Are Associated With Increased Plasma Triglyceride Levels and Decreased Fat Mass in Men With the Metabolic Syndrome

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    OBJECTIVE—To determine whether, in accordance with observations in mouse models, high concentrations of the lipoprotein lipase inhibitors apolipoprotein (Apo) CI and ApoCIII are associated with increased triglyceride concentrations and decreased fat mass in men with the metabolic syndrome

    Plasma Apolipoprotein CI and CIII Levels Are Associated With Increased Plasma Triglyceride Levels and Decreased Fat Mass in Men With the Metabolic Syndrome

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    OBJECTIVE—To determine whether, in accordance with observations in mouse models, high concentrations of the lipoprotein lipase inhibitors apolipoprotein (Apo) CI and ApoCIII are associated with increased triglyceride concentrations and decreased fat mass in men with the metabolic syndrome
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