279 research outputs found

    Bringing neglected tropical diseases into the spotlight.

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    The correlation between poverty and the neglected tropical disease (NTD) burden is undeniable. NTDs are a brand without copyright; an international movement gathering momentum towards a common goal of tackling major causes of preventable illness in low-income countries. New reports by Liese and Schubert and Moran et. al. act as a call to arms, highlighting a need for research into NTD treatment and control that is essential to improving the lives of the 'bottom billion.

    Endemic Tularemia, Sweden, 2003

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    Tularemia cases have been reported in Sweden since 1931, but no cyclical patterns can be identified. In 2003, the largest outbreak of tularemia since 1967 occurred, involving 698 cases. Increased reports were received from tularemia-nonendemic areas. Causal factors for an outbreak year and associated geographic distribution are not yet understood

    Single addition of an allyl amine monomer enables access to end-functionalized RAFT polymers via native chemical ligation

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    A novel method for the introduction of a single protected amine-functional monomer at the chain end of RAFT polymers has been developed. This monomer addition, in concert with native chemical ligation, facilitated the development of a simple and versatile method for the end-functionalisation of polymers with peptides

    Genetic Determinism vs. Phenotypic Plasticity in Protist Morphology

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    Untangling the relationships between morphology and phylogeny is key to building a reliable taxonomy, but is especially challenging for protists, where the existence of cryptic or pseudocryptic species makes finding relevant discriminant traits difficult. Here we use Hyalosphenia papilio (a testate amoeba) as a model species to investigate the contribution of phylogeny and phenotypic plasticity in its morphology. We study the response of H. papilio morphology (shape and pores number) to environmental variables in (i) a manipulative experiment with controlled conditions (water level), (ii) an observational study of a within-site natural ecological gradient (water level), and (iii) an observational study across 37 European peatlands (climate). We showed that H. papilio morphology is correlated to environmental conditions (climate and water depth) as well as geography, while no relationship between morphology and phylogeny was brought to light. The relative contribution of genetic inheritance and phenotypic plasticity in shaping morphology varies depending on the taxonomic group and the trait under consideration. Thus, our data call for a reassessment of taxonomy based on morphology alone. This clearly calls for a substantial increase in taxonomic research on these globally still under-studied organisms leading to a reassessment of estimates of global microbial eukaryotic diversity.</p

    Rapid Additive-Free Selenocystine–Selenoester Peptide Ligation

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    We describe an unprecedented reaction between peptide selenoesters and peptide dimers bearing N-terminal selenocystine that proceeds in aqueous buffer to afford native amide bonds without the use of additives. The selenocystine-selenoester ligations are complete in minutes, even at sterically hindered junctions, and can be used in concert with one-pot deselenization chemistry. Various pathways for the transformation are proposed and probed through a combination of experimental and computational studies. Our new reaction manifold is also showcased in the total synthesis of two proteins

    Physical restraining of nursing home residents in the last week of life : an epidemiological study in six European countries

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    Background: End-of-life care in nursing homes holds several risk factors for the use of physical restraints on residents, a practice shown to be neither safe nor effective. Objectives: To determine the frequency of physical limb and/or trunk restraint use in the last week of life of nursing home residents in six European countries and its association with country, resident and nursing home characteristics. Design: Epidemiological survey study. Setting: Proportionally stratified random sample of nursing homes in Belgium (BE), England (ENG), Finland (FI), Italy (IT), the Netherlands (NL), and Poland (PL). Participants: Nursing home staff (nurses or care assistants). Methods: In all participating nursing homes, we identified all residents who died during the three months prior to measurements. The staff member most involved in each resident's care indicated in a structured questionnaire whether trunk and/or limb restraints were used on that resident during the last week of life 'daily', 'less frequently than daily' or not used'. Results: In 322 nursing homes, staff returned questionnaires regarding 1384 deceased residents (response rate 81%). Limb and/or trunk restraints were used "daily" in the last week of life in 8% (BE), 1% (ENG), 4% (FI), 12% (IT), 0% (NL), and 0.4% (PL) of residents; and "less frequently than daily" in 4% (BE), 0% (ENG), 0.4% (FI), 6% (IT), 0% (NL), and 3.5% (PL) of residents. Restraint use was associated with country (p = 0.020) and inversely associated with residents' age (p = 0.017; odds ratio 0.96, 95% confidence interval 0.93 to 0.99). Restraint use was not significantly associated with resident's gender, dementia, functional status, staffing level, or the level of dependency of residents within the nursing home. Conclusions: In all but one of the six countries studied, staff reported that nursing home residents were restrained through limb and/or trunk restraints in the last week of life. The proportion of restrained residents was highest in Italy and Belgium. Organizational and resident characteristics may not be relevant predictors of restraint use at the end of life in this setting. National policy that explicitly discourages physical restraints in nursing home care and suggests alternative practices may be an important component of strategies to prevent their use. (C) 2019 The Author(s). Published by Elsevier Ltd

    The palliative care knowledge of nursing home staff : the EU FP7 PACE cross-sectional survey in 322 nursing homes in six European countries

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    Background: The provision of high-quality palliative care in nursing homes (NHs) is a major challenge and places demands on the knowledge and skills of the staff. Aim: This study assesses the palliative care knowledge of staff in NHs in Europe. Design: Cross-sectional study using structured survey Setting/participants: Nurses and care assistants working in 322 representative samples of NHs in Belgium, the Netherlands, England, Finland, Poland and Italy. Palliative care knowledge is measured with the Palliative Care Survey. Scores on the scales range between 0 and 1; higher scores indicate more knowledge. Results: A total of 3392 NH-staff were given a questionnaire, and 2275 responded (67%). Knowledge of basic palliative care issues ranged between 0.20 in Poland (95% confidence interval (CI) 0.19; 0.24) and 0.61 in Belgium (95% CI 0.59; 0.63), knowledge of physical aspects that can contribute to pain ranged between 0.81 in Poland (95% CI 0.79; 0.84) and 0.91 in the Netherlands (95% CI 0.89; 0.93), and knowledge of psychological reasons that can contribute to pain ranged between 0.56 in England (95% CI 0.50; 0.62) and 0.87 in Finland (95% CI 0.83; 0.90). Factors associated with knowledge were country, professional role and having undertaken formal training in palliative care. Conclusions: Knowledge of nurses and care assistants concerning basic palliative care issues appears to be suboptimal in all participating countries, although there is substantial heterogeneity. Education of nursing staff needs to be improved across, but each country may require its own strategy to address the unique and specific knowledge gaps
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