162 research outputs found

    Esfuerzos para extender el curso de la vida: distinguiendo los hechos de la ficción

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    After retirement, older people often find themselves far from their children and grandchildren, and many spend their last years isolated and alone. As traditional concepts of family and social institutions fragment, social networks weaken, leading to an epidemic of loneliness, and substance abuse and suicide in developed countries. In fact, life expectancy in the US has dropped for the past few years, in large part due to a dramatic increase in suicide and drug overdose (ref). None of these social problems is likely to be solved by metformin. They point to a crisis of identity and meaning, an existential crisis. In this context, one might wonder if we are already seeing the effects of tinkering with our lifespan. There are many more conclusions one could draw about the implications of longevity, many of which have been elegantly described in Beyond Therapy: Biotechnology and the Pursuit of Happiness, published by the President’s Council on Bioethics, which I used as a reference for this talk. I hope I have been successful in providing a 10,000-foot view of the questions of efforts to extend human longevity and its implications that will provoke thought and discussion. I would like to end these reflections by turning back to my favorite transhumans. The reason we love superheroes is not for their superior strength or intelligence, but their characters. They use their powers to protect and serve humanity rather than dominate or annihilate it. It is not their gadgetry that makes them great, but how they use it to save the vulnerable. Even as a small child I knew that if everyone acted the way they did, the world would be a better place. The moral of every story was that the “enhancement” humanity needed would not come as the fruit of technology, but of virtue.Después de la jubilación, las personas mayores a menudo se encuentran lejos de sus hijos y nietos, y muchos pasan sus últimos años aislados y solos. A medida que los conceptos tradicionales de familia e instituciones sociales se fragmentan, las redes sociales se debilitan, lo que lleva a una epidemia de soledad, abuso de sustancias y suicidio en los países desarrollados. De hecho, la esperanza de vida en los EE. UU. Ha disminuido durante los últimos años, en gran parte debido a un aumento dramático en el suicidio y la sobredosis de drogas. Es probable que la metformina no resuelva ninguno de estos problemas sociales. Señalan una crisis de identidad y significado, una crisis existencial. En este contexto, uno podría preguntarse si ya estamos viendo los efectos de modificar nuestra vida útil. Hay muchas más conclusiones que se podrían sacar sobre las implicaciones de la longevidad, muchas de las cuales se han descrito elegantemente en Beyond Therapy: Biotechnology and the Pursuit of Happiness, publicado por el President’s Council on Bioethics, que utilicé como referencia para esta charla. Espero haber tenido éxito al proporcionar una visión de “10,000 pasos” de las cuestiones relativas a los esfuerzos para extender la longevidad humana y sus implicaciones que provocarán pensamiento y discusión. Me gustaría terminar con estas reflexiones volviendo a mis transhumanos favoritos. La razón por la que amamos a los superhéroes no es por su fuerza o inteligencia superior, sino por sus personajes. Usan sus poderes para proteger y servir a la humanidad en lugar de dominarla o aniquilarla. No son sus artilugios lo que los hace geniales, sino cómo los usan para salvar a los vulnerables. Incluso cuando era pequeño sabía que si todos actuaban como lo hacían, el mundo sería un lugar mejor. La moraleja de cada historia era que la “mejora” que necesitaba la humanidad no vendría como fruto de la tecnología, sino de la virtud

    Inverse association between cancer and Alzheimer’s disease: results from the Framingham Heart Study

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    Objectives: To relate cancer since entry into the Framingham Heart Study with the risk of incident Alzheimer’s disease and to estimate the risk of incident cancer among participants with and without Alzheimer’s disease. Design: Community based prospective cohort study; nested age and sex matched case-control study. Setting: Framingham Heart Study, USA. Participants: 1278 participants with and without a history of cancer who were aged 65 or more and free of dementia at baseline (1986-90). Main outcome measures Hazard ratios and 95% confidence intervals for the risks of Alzheimer’s disease and cancer. Results: Over a mean follow-up of 10 years, 221 cases of probable Alzheimer’s disease were diagnosed. Cancer survivors had a lower risk of probable Alzheimer’s disease (hazard ratio 0.67, 95% confidence interval 0.47 to 0.97), adjusted for age, sex, and smoking. The risk was lower among survivors of smoking related cancers (0.26, 0.08 to 0.82) than among survivors of non-smoking related cancers (0.82, 0.57 to 1.19). In contrast with their decreased risk of Alzheimer’s disease, survivors of smoking related cancer had a substantially increased risk of stroke (2.18, 1.29 to 3.68). In the nested case-control analysis, participants with probable Alzheimer’s disease had a lower risk of subsequent cancer (0.39, 0.26 to 0.58) than reference participants, as did participants with any Alzheimer’s disease (0.38) and any dementia (0.44). Conclusions: Cancer survivors had a lower risk of Alzheimer’s disease than those without cancer, and patients with Alzheimer’s disease had a lower risk of incident cancer. The risk of Alzheimer’s disease was lowest in survivors of smoking related cancers, and was not primarily explained by survival bias. This pattern for cancer is similar to that seen in Parkinson’s disease and suggests an inverse association between cancer and neurodegeneration

    Did the London Initiative Zone investment programme affect general practice structure and performance in East London? A time series analysis of cervical screening coverage and asthma prescribing

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    A programme of incentives was set up in the London Initiative Zones to improve primary care in inner London based on the findings of the Tomlinson Enquiry in 1992. This descriptive study is a 4-y time series analysis of changes in general practice structure in East London as the result of London Initiative Zone investment, and an exploration of the possible effect of investment on practice performance.We used routinely available administrative data for the whole analysis. General practice characteristics and two selected performance indicators: the asthma prophylaxis to bronchodilator ratio and cervical cytology screening rate, for all practices in the East London and the City Health Authority for 4 y, 1993-1996, were used. Both reflect practice efficiency, but relate to different aspects of practice performance. The prescribing indicator is more indicative of the quality of clinical practise, whereas cervical screening coverage relates more to the characteristics of the practice population and to practice organisation. Repeated measures analyses were used to identify trends and to explore the relationship between changes in practice characteristics and performance. Graphical methods were used to compare East London trends with the rest of England.There were significant improvements in practice structure as the consequence of London Initiative Zone investment. There was a positive association with improvements in practice performance, but East London still lagged some way behind national patterns. The findings suggest that while improvements in asthma prescribing follow the national trend, practices have difficulty in achieving and sustaining the 80% target for cervical cytology screening, and that an overall population coverage of 80% may be in doubt.Increased investment in practice staffing may be influential in improving some aspects of performance. However, in common with other inner cities, a greater effort and more innovative strategies may be needed to achieve a standard of performance equal to the best

    Mapping Children's Discussions of Evidence in Science to Assess Collaboration and Argumentation

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    The research reported in this paper concerns the development of children's skills of interpreting and evaluating evidence in science. Previous studies have shown that school teaching often places limited emphasis on the development of these skills, which are necessary for children to engage in scientific debate and decision-making. The research, undertaken in the UK, involved four collaborative decision-making activities to stimulate group discussion, each was carried out with five groups of four children (10-11 years old). The research shows how the children evaluated evidence for possible choices and judged whether their evidence was sufficient to support a particular conclusion or the rejection of alternative conclusions. A mapping technique was developed to analyse the discussions and identify different "levels" of argumentation. The authors conclude that suitable collaborative activities that focus on the discussion of evidence can be developed to exercise children's ability to argue effectively in making decisions

    In the dedicated pursuit of dedicated capital: restoring an indigenous investment ethic to British capitalism

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    Tony Blair’s landslide electoral victory on May 1 (New Labour Day?) presents the party in power with a rare, perhaps even unprecedented, opportunity to revitalise and modernise Britain’s ailing and antiquated manufacturing economy.* If it is to do so, it must remain true to its long-standing (indeed, historic) commitment to restore an indigenous investment ethic to British capitalism. In this paper we argue that this in turn requires that the party reject the very neo-liberal orthodoxies which it offered to the electorate as evidence of its competence, moderation and ‘modernisation’, which is has internalised, and which it apparently now views as circumscribing the parameters of the politically and economically possible

    Mortality in Persons With Autism Spectrum Disorder or Attention-Deficit/Hyperactivity Disorder: A Systematic Review and Meta-analysis

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    Importance: Autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD) are childhood-onset disorders that may persist into adulthood. Several studies have suggested that they may be associated with an increased risk of mortality; however, the results are inconsistent. Objective: To assess the risk of mortality among persons with ASD or ADHD and their first-degree relatives. Data sources: A search of MEDLINE, Embase, Scopus, Web of Science, and PsycINFO (published from inception to April 1, 2021) was supplemented by searching reference lists of the retrieved articles. Study selection: Cohort and case-control studies that reported mortality rate ratios (RRs) in persons with ASD or ADHD and/or their first-degree relatives compared with the general population or those without ASD/ADHD were included. Data extraction and synthesis: Screening, data extraction, and quality assessment were performed by at least 2 researchers independently. A random-effects model was used to meta-analyze individual studies and assessed heterogeneity (I2). Main outcomes and measures: All-cause mortality in association with ASD or ADHD. Secondary outcome was cause-specific mortality. Results: Twenty-seven studies were included, with a total of 642 260 individuals. All-cause mortality was found to be higher for persons with ASD (154 238 participants; 12 studies; RR, 2.37; 95% CI, 1.97-2.85; I2, 89%; moderate confidence) and persons with ADHD (396 488 participants; 8 studies; RR, 2.13; 95% CI, 1.13-4.02; I2, 98%; low confidence) than for the general population. Among persons with ASD, deaths from natural causes (4 studies; RR, 3.80; 95% CI, 2.06-7.01; I2, 96%; low confidence) and deaths from unnatural causes were increased (6 studies; RR, 2.50; 95% CI, 1.49-4.18; I2, 95%; low confidence). Among persons with ADHD, deaths from natural causes were not significantly increased (4 studies; RR, 1.62; 95% CI, 0.89-2.96; I2, 88%; low confidence), but deaths from unnatural causes were higher than expected (10 studies; RR, 2.81; 95% CI, 1.73-4.55; I2, 92%; low confidence). Conclusions and relevance: This systematic review and meta-analysis found that ASD and ADHD are associated with a significantly increased risk of mortality. Understanding the mechanisms of these associations may lead to targeted strategies to prevent avoidable deaths in high-risk groups. The substantial heterogeneity between studies should be explored further.This study was supported by the Institute of Health Carlos III and Generalitat Valenciana. Drs Catalá-López and Tabarés-Seisdedos received funding from the Centro de Investigación Biomédica en Red de Salud Mental, Institute of Health Carlos III, and Generalitat Valencia. Dr Page received support from an Australian Research Council Discovery Early Career Researcher Award. Dr Hutton received support from a new investigator award from the Canadian Institutes of Health Research and the Drug Safety and Effectiveness Network. Dr Ridao received support from the Spanish Health Services Research on Chronic Patients Network and Institute of Health Carlos III.S
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