394 research outputs found
The Impacts of Tourism Stays on Residents' Self-Reported Health: A Pan-European Analysis on the Role of Age and Urbanization Level
Understanding the impacts of tourism on the quality of life of residents is a priority for the sustainable tourism agenda, and is especially relevant to the COVID-19 recovery period. However, the evidence is poor, and it is not clear whether the outcomes vary among sociodemographic groups. This study fills this gap by proposing a pan-European analysis of the effects of tourism stays per 1000 residents (as a measure of tourism pressure) on self-perceived health at a regional level, based on data from Eurostat, the EU-SILC (European Union Statistics on Income and Living Conditions survey), and the LFS (Labor Force Survey). Multilevel models with random effects were used, including three levels: region, time, and region-time. Results show that tourism pressure may benefit self-reported health but only among residents aged over 50 years old living in rural contexts, or over 65 living in low density urban areas. As for younger groups (under 50) living in high density cities, tourism is longitudinally associated with worsened self-reported health. These results, which are supported by instrumental-variable estimations, suggest that urban residents and younger groups do not benefit from tourism. This might be due to a number of side effects related to increased living costs, precarious labour, and conflicts related to public space. Therefore, our findings challenge the narrative that urban tourism universally improves residents' quality of life. Considering the global urgency of creating healthier and more equitable post-COVID-19 cities and societies, tourism should be considered together with health and equity dimensions
Sall4 controls differentiation of pluripotent cells independently of the Nucleosome Remodelling and Deacetylation (NuRD) complex.
Sall4 is an essential transcription factor for early mammalian development and is frequently overexpressed in cancer. Although it is reported to play an important role in embryonic stem cell (ESC) self-renewal, whether it is an essential pluripotency factor has been disputed. Here, we show that Sall4 is dispensable for mouse ESC pluripotency. Sall4 is an enhancer-binding protein that prevents precocious activation of the neural gene expression programme in ESCs but is not required for maintenance of the pluripotency gene regulatory network. Although a proportion of Sall4 protein physically associates with the Nucleosome Remodelling and Deacetylase (NuRD) complex, Sall4 neither recruits NuRD to chromatin nor influences transcription via NuRD; rather, free Sall4 protein regulates transcription independently of NuRD. We propose a model whereby enhancer binding by Sall4 and other pluripotency-associated transcription factors is responsible for maintaining the balance between transcriptional programmes in pluripotent cells.Wellcome Trust (PhD Studentship; Senior Fellowship in the Basic Biomedical Sciences [098021/Z/11/Z]), Wellcome Trust and UK Medical Research Council core funding to the Cambridge Stem Cell Institute [079249/Z/06/I], European Union Seventh Framework Programme (FP7) Project ‘4DCellFate’This is the final version of the article. It first appeared from The Company of Biologists via http://dx.doi.org/10.1242/dev.13911
Touristification, smartization, and social sustainability in European regions
Touristification and smartization processes are commonly associated with economic growth strategies. Here we emphasize and demonstrate the need to consider the implication of these processes on social sustainability. Initial results imply that: (1) regions not specialized in tourism are associated with a lower share of population in poverty; and (2) regions’ ‘smartness’ level is negatively associated with the share of poverty. However, in regions highly specialized in tourism, smartization demonstrated an opposite association of increased intra-regional poverty. As residents’ quality of life is becoming a key policy consideration, understanding the effect of these socio-economic processes on socially sustainable growth has timely implications for regional planning, including for post-COVID-19 recovery strategies.This research has been funded by the H2020 programme, SMARTDEST project under grant agreement no. 870753
Metal Exposure and Risk of Parkinson Disease: a systematic review and meta-analysis
Metal exposure has been suggested as a possible environmental risk factor for Parkinson disease (PD). We searched the PubMed, EMBASE, and Cochrane databases to systematically review the literature on the relationship between metal exposure and PD risk and to examine the overall quality of each study and the exposure assessment method. A total of 83 case-control studies and 5 cohort studies published during the period 1963-July 2021 were included, of which 73 were graded as being of low or moderate overall quality. Investigators in 69 studies adopted self-reported exposure and biomonitoring after disease diagnosis for exposure assessment approaches. The meta-analyses showed that concentrations of copper and iron in serum and concentrations of zinc in either serum or plasma were lower, while concentrations of magnesium in CSF and zinc in hair were higher, among PD cases as compared with controls. Cumulative lead levels in bone were found to be associated with increased risk of PD. We did not find associations between other metals and PD. The current level of evidence for associations between metals and PD risk is limited, as biases from methodological limitations cannot be ruled out. High-quality studies assessing metal levels before disease onset are needed to improve our understanding of the role of metals in the etiology of PD
Air pollution exposure and mortality from neurodegenerative diseases in the Netherlands: A population-based cohort study
Background: Long-term exposure to ambient air pollution has been linked with all-cause mortality and cardiovascular and respiratory diseases. Suggestive associations between ambient air pollutants and neurodegeneration have also been reported, but due to the small effect and relatively rare outcomes evidence is yet inconclusive. Our aim was to investigate the associations between long-term air pollution exposure and mortality from neurodegenerative diseases. Methods: A Dutch national cohort of 10.8 million adults aged ≥30 years was followed from 2013 until 2019. Annual average concentrations of air pollutants (ultra-fine particles (UFP), nitrogen dioxide (NO2), fine particles (PM2.5 and PM10) and elemental carbon (EC)) were estimated at the home address at baseline, using land-use regression models. The outcome variables were mortality due to amyotrophic lateral sclerosis (ALS), Parkinson's disease, non-vascular dementia, Alzheimer's disease, and multiple sclerosis (MS). Hazard ratios (HR) were estimated using Cox models, adjusting for individual and area-level socio-economic status covariates. Results: We had a follow-up of 71 million person-years. The adjusted HRs for non-vascular dementia were significantly increased for NO2 (1.03; 95% confidence interval (CI) 1.02–1.05) and PM2.5 (1.02; 95%CI 1.01–1.03) per interquartile range (IQR; 6.52 and 1.47 μg/m3, respectively). The association with PM2.5 was also positive for ALS (1.02; 95%CI 0.97–1.07). These associations remained positive in sensitivity analyses and two-pollutant models. UFP was not associated with any outcome. No association with air pollution was found for Parkinson's disease and MS. Inverse associations were found for Alzheimer's disease. Conclusion: Our findings, using a cohort of more than 10 million people, provide further support for associations between long-term exposure to air pollutants (PM2.5 and particularly NO2) and mortality of non-vascular dementia. No associations were found for Parkinson and MS and an inverse association was observed for Alzheimer's disease
Randomised Clinical Trial of Supervised Exercise Therapy vs. Endovascular Revascularisation for Intermittent Claudication Caused by Iliac Artery Obstruction:The SUPER study
OBJECTIVE: International guidelines recommend supervised exercise therapy (SET) as primary treatment for all patients with intermittent claudication (IC), yet primary endovascular revascularisation (ER) might be more effective in patients with iliac artery obstruction. METHODS: This was a multicentre RCT including patients with IC caused by iliac artery stenosis or occlusion (NCT01385774). Patients were allocated randomly to SET or ER stratified for maximum walking distance (MWD) and concomitant SFA disease. Primary endpoints were MWD on a treadmill (3.2 km/h, 10% incline) and disease specific quality of life (VascuQol) after one year. Additional interventions during a mean follow up of 5.5 years were recorded. RESULTS: Between November 2010 and May 2015, 114 patients were allocated to SET, and 126 to ER. The trial was terminated prematurely after 240 patients were included. Compliance with SET was 57/114 (50%) after six months. Ten patients allocated to ER (8%) did not receive this intervention. One year follow up was complete for 90/114 (79%) SET patients and for 104/126 (83%) ER patients. The mean MWD improved from 187 to 561 m in SET patients and from 196 to 574 m in ER patients (p = .69). VascuQol sumscore improved from 4.24 to 5.58 in SET patients, and from 4.28 to 5.88 in ER patients (p = .048). Some 33/114 (29%) SET patients had an ER within one year, and 2/114 (2%) surgical revascularisation (SR). Some 10/126 (8%) ER patients had additional ER within one year and 10/126 (8%) SR. After a mean of 5.5 years, 49% of SET patients and 27% of ER patients underwent an additional intervention for IC. CONCLUSION: Taking into account the many limitations of the SUPER study, both a strategy of primary SET and primary ER improve MWD on a treadmill and disease specific Qol of patients with IC caused by an iliac artery obstruction. It seems reasonable to start with SET in these patients and accept a 30% failure rate, which, of course, must be discussed with the patient. Patients continue to have interventions beyond one year
The Nucleosome Remodelling and Deacetylation complex suppresses transcriptional noise during lineage commitment.
Multiprotein chromatin remodelling complexes show remarkable conservation of function amongst metazoans, even though components present in invertebrates are often found as multiple paralogous proteins in vertebrate complexes. In some cases, these paralogues specify distinct biochemical and/or functional activities in vertebrate cells. Here, we set out to define the biochemical and functional diversity encoded by one such group of proteins within the mammalian Nucleosome Remodelling and Deacetylation (NuRD) complex: Mta1, Mta2 and Mta3. We find that, in contrast to what has been described in somatic cells, MTA proteins are not mutually exclusive within embryonic stem (ES) cell NuRD and, despite subtle differences in chromatin binding and biochemical interactions, serve largely redundant functions. ES cells lacking all three MTA proteins exhibit complete NuRD loss of function and are viable, allowing us to identify a previously unreported function for NuRD in reducing transcriptional noise, which is essential for maintaining a proper differentiation trajectory during early stages of lineage commitment.Funding to the BH and MV labs was provided through EU FP7 Integrated Project “4DCellFate” (277899). The BH lab further benefitted from a Wellcome Trust Senior Fellowship (098021/Z/11/Z) and from core funding to the Cambridge Stem Cell Institute from the Wellcome Trust and Medical Research Council (097922/Z/11/Z and 203151/Z/16/Z). The Vermeulen lab is part of the Oncode Institute, which is partly funded by the Dutch Cancer Society (KWF)
Nonparametric Analysis of Household Labor Supply:Goodness-of-Fit and Power of the Unitary and the Collective Model
We compare the empirical performance of unitary and collective labor supply models, using representative data from the Dutch DNB Household Survey.We conduct a nonparametric analysis that avoids the distortive impact of an erroneously speci.ed functional form for the prefer-ences and/or the intrahousehold bargaining process.Our analysis focuses on the goodness-of-.t of the two behavioral models.To guarantee a fair comparison, we complement this goodness-of-.t analysis with a power analysis.Our results strongly favor the collective approach to modeling the behavior of multi-person households
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