79 research outputs found

    Inequalities by immigrant status in unmet needs for healthcare in Europe: the role of origin, nationality and economic resources

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    The aim of the research is to assess whether there are inequalities in unmet needs for healthcare between natives and migrants within Europe. We used cross-sectional data from the European Statistics on Income and Living Conditions 2012. Our dependent variables were perceived unmet needs for medical and dental examination or treatment. Our main independent variable is immigrant status, defined using a combination of country of birth and citizenship (nationals born in the country of residence, reference; European Union-born nationals; non-EU born nationals; EU-born foreigners; non EU-born foreigners). The prevalence ratios of unmet needs according to immigrant status are obtained through sex-stratified robust Poisson regression models, sequentially adjusted by age, health status and socio-economic characteristics. The prevalence of medical unmet needs, adjusted by age and health status, is higher in foreign women, both EU-born and non-EU born, but it is no longer significant after the socioeconomic adjustment. For dental unmet needs, the risk is significantly higher for all foreigners, EU and non EU-born, men and women. Once adjusted for socioeconomic variables significant inequalities persist, although diminished, for both EU-born and non-EU-born foreign men and EU-born foreign women. This study contributes to the discussion of adequate access to healthcare systems and adaptation of services for migrants. While inequalities cannot be detected for naturalised immigrants, the higher risk of unmet need affecting foreigners, even within the EU, deserves further attention

    Pivotal role of micro-CT technology in setting up an optimized lung fibrosis mouse model for drug screening

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    Idiopathic pulmonary fibrosis (IPF) is a progressive disease with no curative pharmacological treatment. The most used animal model of IPF for anti-fibrotic drug screening is bleomycin (BLM)-induced lung fibrosis. However, several issues have been reported: the balance among disease resolution, an appropriate time window for therapeutic intervention and animal welfare remain critical aspects yet to be fully elucidated. In this study, C57Bl/6 male mice were treated with BLM via oropharyngeal aspiration (OA) following either double or triple administration. The fibrosis progression was longitudinally assessed by micro-CT every 7 days for 4 weeks after BLM administration. Quantitative micro-CT measurements highlighted that triple BLM administration was the ideal dose regimen to provoke sustained lung fibrosis up to 28 days. These results were corroborated with lung histology and Bronchoalveolar Lavage Fluid cells. We have developed a mouse model with prolonged lung fibrosis enabling three weeks of a curative therapeutic window for the screening of putative anti-fibrotic drugs. Moreover, we have demonstrated the pivotal role of longitudinal micro-CT imaging in reducing the number of animals required per experiment in which each animal can be its own control. This approach permits a valuable decrease in costs and time to develop disease animal models

    A fully automated micro‑CT deep learning approach for precision preclinical investigation of lung fibrosis progression and response to therapy

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    : Micro-computed tomography (µCT)-based imaging plays a key role in monitoring disease progression and response to candidate drugs in various animal models of human disease, but manual image processing is still highly time-consuming and prone to operator bias. Focusing on an established mouse model of bleomycin (BLM)-induced lung fibrosis we document, here, the ability of a fully automated deep-learning (DL)-based model to improve and speed-up lung segmentation and the precise measurement of morphological and functional biomarkers in both the whole lung and in individual lobes. µCT-DL whose results were overall highly consistent with those of more conventional, especially histological, analyses, allowed to cut down by approximately 45-fold the time required to analyze the entire dataset and to longitudinally follow fibrosis evolution and response to the human-use-approved drug Nintedanib, using both inspiratory and expiratory μCT. Particularly significant advantages of this µCT-DL approach, are: (i) its reduced experimental variability, due to the fact that each animal acts as its own control and the measured, operator bias-free biomarkers can be quantitatively compared across experiments; (ii) its ability to monitor longitudinally the spatial distribution of fibrotic lesions, thus eliminating potential confounding effects associated with the more severe fibrosis observed in the apical region of the left lung and the compensatory effects taking place in the right lung; (iii) the animal sparing afforded by its non-invasive nature and high reliability; and (iv) the fact that it can be integrated into different drug discovery pipelines with a substantial increase in both the speed and robustness of the evaluation of new candidate drugs. The µCT-DL approach thus lends itself as a powerful new tool for the precision preclinical monitoring of BLM-induced lung fibrosis and other disease models as well. Its ease of operation and use of standard imaging instrumentation make it easily transferable to other laboratories and to other experimental settings, including clinical diagnostic applications

    Selective Arylsulfonamide Inhibitors of ADAM-17: Hit Optimization and Activity in Ovarian Cancer Cell Models

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    Activated Leukocyte Cell Adhesion Mol. (ALCAM) is expressed at the surface of epithelial ovarian cancer (EOC) cells and is released in a sol. form (sALCAM) by ADAM-17-mediated shedding. This process is relevant to EOC cell motility and invasiveness, which is reduced by inhibitors of ADAM-17. In addn., ADAM-17 plays a key role in EGFR signalling and thus may represent a useful target in anticancer therapy. Herein we report our hit optimization effort to identify potent and selective ADAM-17 inhibitors, starting with previous mol. 1. A new series of secondary sulfonamido-based hydroxamates was designed and synthesized. The biol. activity of the newly synthesized compds. was tested in vitro on isolated enzymes and human EOC cell lines. The optimization process led to compd. 21, which showed an IC50 of 1.9 nM on ADAM-17 with greatly increased selectivity. This compd. maintained good inhibitory properties on sALCAM shedding in several in vitro assays

    Guided play: From instruction to creativity when constructing automata

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    Play is a very important activity for children development and there are evidences that it can be an added value when used for educational purposes. Research about how to integrate play in education points to the importance of teacher role, namely how children play can be scaffold and guided. However, there is also lack of agreement about how to guide children playing and the impact of the guidance in the activity development and competences promoted. Given the characteristics of automata, especially the fact that they include a narrative and a mechanism, they can be used within a play based pedagogy, to implement activities related to plan and construct toys and to promote competences as observation, problem solving, creativity in the STEM areas. To explore this potential of moving toys to promote STEM in the early years of schooling is the aim of the Erasmus + AutoSTEM project. This work aims to describe the main objectives and resources of the AutoSTEM project, including the description of a workshop to construct a toy with a sliding mechanism, the Jelly Bird. The procedures involved the presentation and observation of the toy, detailed instructions on how to construct it, the decoration and the elaboration of a narrative about it. 23 children from the 2nd year of basic education participated in the workshop. The analysis of the prototypes shows that all the participants built them properly. Also some alternative ideas to the proposal initially presented emerged, as well as a diversity of narratives. These data suggest that the instructions enhanced the construction of the prototype, but did not inhibit the creativity of the work developed.publishedVersio

    Efficacy of SARS-CoV-2 Vaccination in Dialysis Patients: Epidemiological Analysis and Evaluation of the Clinical Progress

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    This study investigated the impact of the fourth COVID-19 pandemic wave on dialysis patients of Romagna territory, assessing the associations of vaccination status with infection risk, clinical severity and mortality. From November 2021 to February 2022, an epidemiological search was conducted on 829 patients under dialysis treatment for at least one month. The data were then analyzed with reference to the general population of the same area. A temporal comparison was also carried out with the previous pandemic waves (from March 2020 to October 2021). The epidemiological evolution over time in the dialysis population and in Romagna citizens replicated the global trend, as the peak of the fourth wave corresponded to the time of maximum diffusion of omicron variant (B.1.1.529). Of 771 prevalent dialysis patients at the beginning of the study, 109 (14.1%) contracted SARS-CoV-2 infection during the 4-month observation period. Vaccine adherence in the dialysis population of the reference area was above 95%. Compared to fully or partially vaccinated subjects, the unvaccinated ones showed a significantly higher proportion of infections (12.5% vs. 27.0% p = 0.0341), a more frequent need for hospitalization (22.2% vs. 50.0%) and a 3.3-fold increased mortality risk. These findings confirm the effectiveness of COVID-19 vaccines in keeping infectious risk under control and ameliorating clinical outcomes in immunocompromised patients

    The Life Span Determinant p66Shc Localizes to Mitochondria Where It Associates with Mitochondrial Heat Shock Protein 70 and Regulates Trans-membrane Potential

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    P66Shc regulates life span in mammals and is a critical component of the apoptotic response to oxidative stress. It functions as a downstream target of the tumor suppressor p53 and is indispensable for the ability of oxidative stress-activated p53 to induce apoptosis. The molecular mechanisms underlying the apoptogenic effect of p66Shc are unknown. Here we report the following three findings. (i) The apoptosome can be properly activated in vitro in the absence of p66Shc only if purified cytochrome c is supplied. (ii) Cytochrome c release after oxidative signals is impaired in the absence of p66Shc. (iii) p66Shc induces the collapse of the mitochondrial trans-membrane potential after oxidative stress. Furthermore, we showed that a fraction of cytosolic p66Shc localizes within mitochondria where it forms a complex with mitochondrial Hsp70. Treatment of cells with ultraviolet radiation induced the dissociation of this complex and the release of monomeric p66Shc. We propose that p66Shc regulates the mitochondrial pathway of apoptosis by inducing mitochondrial damage after dissociation from an inhibitory protein complex. Genetic and biochemical evidence suggests that mitochondria regulate life span through their effects on the energetic metabolism (mitochondrial theory of aging). Our data suggest that mitochondrial regulation of apoptosis might also contribute to life span determination
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