Introducing new health interventions.
Ontology highlight
ABSTRACT:
SUBMITTER: Gabbay J
PROVIDER: S-EPMC1326918 | biostudies-literature | 2006 Jan
REPOSITORIES: biostudies-literature
Publications
Introducing new health interventions.
BMJ (Clinical research ed.) 20060101 7533
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Project description:Research of human vocal fold (VF) biology is hampered by several factors. The sensitive microstructure of the VF mucosa is one of them and limits the in vivo research, as biopsies carry the unbearable risk of scarring. A laryngeal organotypic model consisting of VF epithelial cells and VF fibroblasts (VFF) might overcome some of the limitations. Whereas human VFF are available in several forms, availability of VF epithelial cells is scarce. Buccal mucosa might be a good source, as it is easily accessible, and biopsies heal without scarring. For this project we generated organotypic constructs consisting of immortalized human VF fibroblasts and primary human buccal epithelial cells. The constructs (n = 3) were compared to native laryngeal mucosa on a histological and proteomic level. The engineered constructs reassembled into a mucosa-like structure, after a cultivation period of 35 days. Immunohistochemical staining confirmed a multi-layered stratified epithelium, a collagen type IV positive barrier-like structure resembling the basal membrane, and an underlying layer containing VFF. Proteomic analysis revealed a total number of 1961 proteins. Of these, 83.8% were detected in both native VF and constructs, with only 53 proteins having significantly different abundance. 15.3% of detected proteins were identified in native VF mucosa only, most likely due to endothelial, immune and muscle cells within the VF samples, while 0.9% were found only in the constructs. Based on easily available cell sources, we could demonstrate that our organotypic laryngeal mucosa model shares many characteristics with native VF mucosa. It represents a stable and reproducible in vitro model and offers a wide range of possibilities ranging from the exploration of VF biology to the testing of interventions (e.g. drug testing).
2023-06-19 | PXD033688 | Pride
Project description:This paper introduces the 'Survey of Health, Ageing and Retirement in Europe' (SHARE) to researchers on ageing. SHARE provides an infrastructure to help researchers better understand the individual and population ageing process: where we are, where we are heading to, and how we can influence the quality of life as we age, both as individuals and as societies. The baseline wave in 2004 provides data on the life circumstances of some 27,000 persons aged 50 and over in 11 European countries, ranging from Scandinavia across Western and Central Europe to the Mediterranean. SHARE has made great efforts to deliver truly comparable data, so we can reliably study how differences in cultures, living conditions and policy approaches shape the life of Europeans just before and after retirement. The paper first describes the SHARE data. In order to demonstrate its value, it then presents highlights from the three main research areas covered by SHARE, namely economics, sociology, and health.
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Project description:Continuous improvements in the resolution of three-dimensional imaging have led to an increased application of these techniques in conventional taxonomic research in recent years. Coupled with an ever increasing research effort in cybertaxonomy, three-dimensional imaging could give a boost to the development of virtual specimen collections, allowing rapid and simultaneous access to accurate virtual representations of type material. This paper explores the potential of micro-computed tomography (X-ray micro-tomography), a non-destructive three-dimensional imaging technique based on mapping X-ray attenuation in the scanned object, for supporting research in systematics and taxonomy. The subsequent use of these data as virtual type material, so-called "cybertypes", and the creation of virtual collections lie at the core of this potential. Sample preparation, image acquisition, data processing and presentation of results are demonstrated using polychaetes (bristle worms), a representative taxon of macro-invertebrates, as a study object. Effects of the technique on the morphological, anatomical and molecular identity of the specimens are investigated. The paper evaluates the results and discusses the potential and the limitations of the technique for creating cybertypes. It also discusses the challenges that the community might face to establish virtual collections. Potential future applications of three-dimensional information in taxonomic research are outlined, including an outlook to new ways of producing, disseminating and publishing taxonomic information.
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Project description:IntroductionThis is the first study to use the Common-Sense Model of Self-Regulation theory for oral health interventions in pediatric practices. The objective of this qualitative study was to assess adoption and implementation of theory-based multilevel oral health interventions, by clinicians (pediatricians and nurse practitioners) participating in a cluster randomized clinical trial, to create an oral health toolkit for widespread dissemination into pediatric practices.MethodsSemistructured interviews were conducted at the conclusion of the cluster randomized clinical trial with 21 clinicians from 9 practices participating in the intervention arm. Clinicians in this arm received Common-Sense Model of Self-Regulation theory-based education and resources to deliver oral health interventions to parents/caregivers and document in electronic medical record. Semistructured interview questions were based on the Diffusion of Innovations Theory, assessing adoption and implementation. The interviews were coded using NVivo (QRS International) software. Main themes were identified using a thematic analysis approach.ResultsFive themes identified from the interviews included strengths of theory-based oral health training for clinicians, oral health resources to improve quality of care, considerations for efficient future implementation, financial considerations, and parent benefits and challenges. Clinicians found that the theory-based training and resources increased knowledge and confidence when addressing oral health with parents and required only ≤2 minutes in their workflow with no financial consequences. Clinicians reported an increase in oral health awareness among parents but suggested an overall need for more pediatric dentists.ConclusionsThe Common-Sense Model of Self-Regulation theory-based education and resources were well received by clinicians and perceived to be beneficial without adverse impact on workflow or practice finances. An online toolkit is planned because these oral health interventions can be successfully implemented and delivered in medical settings.
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Project description:ObjectiveTo assess the evidence of the impact of new food store (supermarket/grocery store) interventions on selected health-related outcomes.DesignA systematic review following the Effective Public Health Practice Project guidelines. All quantitative studies were assessed for their methodological quality. Results were synthesized narratively.SettingEight electronic databases - MEDLINE, EMBASE, CINAHL, ProQuest Public Health, Web of Science, Scopus, PsycINFO and Cochrane Library - were searched to identify relevant records.SubjectsPeer-reviewed scholarly journal articles on new grocery store/supermarket interventions with adult study populations, published in the English language after 1995.ResultsEleven records representing seven new grocery store interventions were identified. Six were assessed having 'weak' methodological quality, one as 'moderate' and two as 'strong'. All studies reported fruit and vegetable consumption but results were not consistent, some studies reporting significantly more and others no increase in consumption. BMI and self-rated health did not show significant improvements. Perceptions of food access, neighbourhood satisfaction and psychological health showed significant improvements.ConclusionsImproved food access through establishment of a full-service food retailer, by itself, does not show strong evidence towards enhancing health-related outcomes over short durations. Presently the field is developing and the complex linking pathways/mechanisms are yet to be elucidated. Further evidence, in the form of high-quality research in different communities with longer follow-up periods, is needed to inform policy decisions.
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Project description:IntroductionIn January 2013 a novel type of multicomponent protein-based vaccine against group B meningococcal disease was licensed by the European Medicines Agency. With the widespread use of the meningococcal serogroup C conjugate vaccines, serogroup B remains now the major cause of bacterial meningitis and septicaemia in young children in Europe. The aim of this study is to investigate the health and the economic outcomes of MenB vaccine introduction into the Italian routine mass vaccination programme.MethodsThe present work is structured in two main parts. Firstly, we assess the epidemiological burden of group B meningococcal disease using official hospitalisation and notification data from two of the most populated Italian regions (Lombardia and Piemonte) during a 6-year study period (2007-2012). Secondly, we evaluate the cost-effectiveness of the immunisation programme in Italy from the public health payer perspective under base case parameters assumptions and performing a comprehensive sensitivity analysis to assess the robustness and the uncertainty of our model results.ResultsMenB serotype is responsible for 59% of the 341 cases of Invasive Meningococcal Disease in Lombardia and Piemonte. Incidence rate for MenB infection is estimated to be 0.21/100,000/y resulting at the highest level in children ≤4 years of age. Although the new MenB vaccine can potentially prevent about one third of the disease cases in the Italian population, model results show this strategy is unlikely to be cost-effective (ICER value over €350,000/QALY) with a vaccine that prevents disease only. These results are robust under most of the sensitivity scenarios except when allowing for lower discount rates.DiscussionThe introduction of the novel vaccine into the routine immunisation schedule needs to be carefully evaluated. The new MenB vaccine has the potential to reduce the disease burden at the population level. However, from the Italian Health Service perspective, the immunisation programme is unlikely to be cost-effective at the current incidence levels and vaccine price.
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Project description:Research of human vocal fold (VF) biology is hampered by several factors. The sensitive microstructure of the VF mucosa is one of them and limits the in vivo research, as biopsies carry a very high risk of scarring. A laryngeal organotypic model consisting of VF epithelial cells and VF fibroblasts (VFF) may overcome some of these limitations. In contrast to human VFF, which are available in several forms, availability of VF epithelial cells is scarce. Buccal mucosa might be a good alternative source for epithelial cells, as it is easily accessible, and biopsies heal without scarring. For this project, we thus generated alternative constructs consisting of immortalized human VF fibroblasts and primary human buccal epithelial cells. The constructs (n = 3) were compared to native laryngeal mucosa at the histological and proteomic level. The engineered constructs reassembled into a mucosa-like structure after a cultivation period of 35 days. Immunohistochemical staining confirmed a multi-layered stratified epithelium, a collagen type IV positive barrier-like structure resembling the basement membrane, and an underlying layer containing VFF. Proteomic analysis resulted in a total number of 1961 identified and quantified proteins. Of these, 83.8% were detected in both native VF and constructs, with only 53 proteins having significantly different abundance. 15.3% of detected proteins were identified in native VF mucosa only, most likely due to endothelial, immune and muscle cells within the VF samples, while 0.9% were found only in the constructs. Based on easily available cell sources, we demonstrate that our laryngeal mucosa model shares many characteristics with native VF mucosa. It provides an alternative and reproducible in vitro model and offers many research opportunities ranging from the study of VF biology to the testing of interventions (e.g. drug testing).
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