1,516 research outputs found

    Age-dependent elastin degradation is enhanced in chronic obstructive pulmonary disease

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    Chronic obstructive pulmonary disease (COPD) is primarily a lung condition characterised by the presence of persistent airflow limitation resulting from inflammation, remodelling of small airways, and emphysema. It is well-recognised that the impacts of COPD extend beyond the lung with many patients suffering systemic manifestations such as cardiovascular diseases that affect morbidity and mortality [1]. “Accelerated ageing” has been proposed as a mechanism that underlies many of the pulmonary and extrapulmonary consequences of COPD [2, 3]. It is thought that a decline in organ function is a feature of ageing in response to the accumulation of cell and molecular damage, and in the case of COPD, noxious inhalants such as tobacco smoke increase this damage, thus accelerating the ageing process, leading to the development of COPD. With the exception of lung function decline, however, evidence indicating that tobacco smoking or COPD accelerates age-associated deterioration remains scarce

    The effects of English secondary school system reforms (2002-2014) on pupil sorting and social segregation: a Greater Manchester case study

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    The English secondary school system has been undergoing rapid change. 60% of secondary schools are now Academies. Opponents of these changes fear, among other things, greater social segregation, while supporters argue that Academies will raise standards for all, reducing inequalities. What actually unfolds will depend a lot on local arrangements and dynamics. This paper takes a close up look at the effects of the changes in four local authorities in Greater Manchester: Manchester, Salford, Trafford and Bury

    New insights into the classification and nomenclature of cortical GABAergic interneurons.

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    A systematic classification and accepted nomenclature of neuron types is much needed but is currently lacking. This article describes a possible taxonomical solution for classifying GABAergic interneurons of the cerebral cortex based on a novel, web-based interactive system that allows experts to classify neurons with pre-determined criteria. Using Bayesian analysis and clustering algorithms on the resulting data, we investigated the suitability of several anatomical terms and neuron names for cortical GABAergic interneurons. Moreover, we show that supervised classification models could automatically categorize interneurons in agreement with experts' assignments. These results demonstrate a practical and objective approach to the naming, characterization and classification of neurons based on community consensus

    Assessing the unintended health impacts of road transport policies and interventions: translating research evidence for use in policy and practice

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    Background: Transport and its links to health and health inequalities suggest that it is important to assess both the direct and unintended indirect health and related impacts of transport initiatives and policies. Health Impact Assessment (HIA) provides a framework to assess the possible health impacts of interventions such as transport. Policymakers and practitioners need access to well conducted research syntheses if research evidence is to be used to inform these assessments. The predictive validity of HIA depends heavily on the use and careful interpretation of supporting empirical evidence. Reviewing and digesting the vast volume and diversity of evidence in a field such as transport is likely to be beyond the scope of most HIAs. Collaborations between HIA practitioners and specialist reviewers to develop syntheses of best available evidence applied specifically to HIA could promote the use of evidence in practice. Methods: Best available research evidence was synthesised using the principles of systematic review. The synthesis was developed to reflect the needs of HIA practitioners and policymakers. Results: Aside from injury reduction measures, there is very little empirical data on the impact of road transport interventions. The possibility of impacts on a diverse range of outcomes and differential impacts across groups, make it difficult to assess overall benefit and harm. In addition, multiple mediating factors in the pathways between transport and hypothesised health impacts further complicate prospective assessment of impacts. Informed by the synthesis, a framework of questions was developed to help HIA practitioners identify the key questions which need to be considered in transport HIA. Conclusion: Principles of systematic review are valuable in producing syntheses of best available evidence for use in HIA practice. Assessment of the health impacts of transport interventions is characterised by much uncertainty, competing values, and differential or conflicting impacts for different population groups at a local or wider level. These are issues pertinent to the value of HIA generally. While uncertainty needs explicit acknowledgement in HIA, there is still scope for best available evidence to inform the development of healthy public policy

    Attributions and Paranoid Delusions with Research Portfolio

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    Background: Research has shown that individuals with persecutory delusions excessively externally attribute negative events. This bias is thought to protect these individuals from becoming aware of their own negative self-referent attitudes. The present study asks whether this self-serving external attributional bias is a state feature of persecutory delusions or a trait feature of individuals who experience persecutory delusions. Method: There were two groups: individuals with persecutory delusions, and individuals with remitted illness, but who typically experienced persecutory delusions during relapse. Subjects were required to complete implicit and explicit measures of attributional inference. Severity of depression and self-esteem were also rated. Results: Individuals with persecutory delusions presented with an excessive external attributional bias for negative events, when compared with remitted controls. Delusional subjects were also significantly more depressed than remitted controls. Conclusions: The results replicate findings of previous studies and also suggest that the attributional bias is a state feature associated with persecutory delusions rather than a trait feature of individuals who experience persecutory delusions. Treatment implications for delusional and relapse-prone individuals are discussed. Directions for future research are suggested
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