96 research outputs found
Development of a cross-cultural deprivation index in five European countries.
BACKGROUND: Despite a concerted policy effort in Europe, social inequalities in health are a persistent problem. Developing a standardised measure of socioeconomic level across Europe will improve the understanding of the underlying mechanisms and causes of inequalities. This will facilitate developing, implementing and assessing new and more effective policies, and will improve the comparability and reproducibility of health inequality studies among countries. This paper presents the extension of the European Deprivation Index (EDI), a standardised measure first developed in France, to four other European countries-Italy, Portugal, Spain and England, using available 2001 and 1999 national census data. METHODS AND RESULTS: The method previously tested and validated to construct the French EDI was used: first, an individual indicator for relative deprivation was constructed, defined by the minimal number of unmet fundamental needs associated with both objective (income) poverty and subjective poverty. Second, variables available at both individual (European survey) and aggregate (census) levels were identified. Third, an ecological deprivation index was constructed by selecting the set of weighted variables from the second step that best correlated with the individual deprivation indicator. CONCLUSIONS: For each country, the EDI is a weighted combination of aggregated variables from the national census that are most highly correlated with a country-specific individual deprivation indicator. This tool will improve both the historical and international comparability of studies, our understanding of the mechanisms underlying social inequalities in health and implementation of intervention to tackle social inequalities in health
Genetic deficiency of indoleamine 2,3-dioxygenase promotes gut microbiota-mediated metabolic health.
The association between altered gut microbiota, intestinal permeability, inflammation and cardiometabolic diseases is becoming increasingly clear but remains poorly understood1,2. Indoleamine 2,3-dioxygenase is an enzyme induced in many types of immune cells, including macrophages in response to inflammatory stimuli, and catalyzes the degradation of tryptophan along the kynurenine pathway. Indoleamine 2,3-dioxygenase activity is better known for its suppression of effector T cell immunity and its activation of regulatory T cells3,4. However, high indoleamine 2,3-dioxygenase activity predicts worse cardiovascular outcome5-9 and may promote atherosclerosis and vascular inflammation6, suggesting a more complex role in chronic inflammatory settings. Indoleamine 2,3-dioxygenase activity is also increased in obesity10-13, yet its role in metabolic disease is still unexplored. Here, we show that obesity is associated with an increase of intestinal indoleamine 2,3-dioxygenase activity, which shifts tryptophan metabolism from indole derivative and interleukin-22 production toward kynurenine production. Indoleamine 2,3-dioxygenase deletion or inhibition improves insulin sensitivity, preserves the gut mucosal barrier, decreases endotoxemia and chronic inflammation, and regulates lipid metabolism in liver and adipose tissues. These beneficial effects are due to rewiring of tryptophan metabolism toward a microbiota-dependent production of interleukin-22 and are abrogated after treatment with a neutralizing anti-interleukin-22 antibody. In summary, we identify an unexpected function of indoleamine 2,3-dioxygenase in the fine tuning of intestinal tryptophan metabolism with major consequences on microbiota-dependent control of metabolic disease, which suggests indoleamine 2,3-dioxygenase as a potential therapeutic target
Vaccine effectiveness against COVID-19 hospitalisation in adults (≥ 20 years) during Alpha- and Delta-dominant circulation: I-MOVE-COVID-19 and VEBIS SARI VE networks, Europe, 2021
Members of the I-MOVE-COVID-19 and VEBIS hospital study teams (in addition to the named authors): Svjetlana Karabuva, Petra Tomaš Petrić, Marija Marković, Sandra Ljubičić, Bojana Mahmutović, Irena Tabain, Petra Smoljo, Iva Pem Novosel, Tanya Melillo, John Paul Cauchi, Benédicte Lissoir, Xavier Holemans, Marc Hainaut, Nicolas Dauby, Benedicte Delaere, Marc Bourgeois, Evelyn Petit, Marijke Reynders, Door Jouck, Koen Magerman, Marieke Bleyen, Melissa Vermeulen, Sébastien Fierens, François Dufrasne, Siel Daelemans, Ala’a Al Kerwi, Francoise Berthet, Guy Fagherazzi, Myriam Alexandre, Charlene Bennett, Jim Christle, Jeff Connell, Peter Doran, Laura Feeney, Binita Maharjan, Sinead McDermott, Rosa McNamara, Nadra Nurdin, Salif Mamadou Cissé, Anne-Sophie L'Honneur, Xavier Duval, Yolande Costa, Fidouh Nadhira, Florence Galtier, Laura Crantelle, Vincent Foulongne, Phillipe Vanhems, Sélilah Amour, Bruno Lina, Fabrice Lainé, Laetitia Gallais, Gisèle Lagathu, Anna Maisa, Yacine Saidi, Christine Durier, Rebecca Bauer, Ana Paula Rodrigues, Adriana Silva, Raquel Guiomar, Margarida Tavares, Débora Pereira, Maria José Manata, Heidi Gruner, André Almeida, Paula Pinto, Cristina Bárbara, Itziar Casado, Ana Miqueleiz, Ana Navascués, Camino Trobajo-Sanmartín, Miguel Fernández-Huerta, María Eugenia Portillo, Carmen Ezpeleta, Nerea Egüés, Manuel García Cenoz, Eva Ardanaz, Marcela Guevara, Conchi Moreno-Iribas, Hana Orlíková, Carmen Mihaela Dorobat, Carmen Manciuc, Simin Aysel Florescu, Alexandru Marin, Sorin Dinu, Catalina Pascu, Alina Ivanciuc, Iulia Bistriceanu, Mihaela Oprea, Maria Elena Mihai, Silke Buda, Ute Preuss, Marianne Wedde, Auksė Mickienė, Giedrė Gefenaitė, Alain Moren, Anthony NardoneIntroduction:
Two large multicentre European hospital networks have estimated vaccine effectiveness (VE) against COVID-19 since 2021.
Aim:
We aimed to measure VE against PCR-confirmed SARS-CoV-2 in hospitalised severe acute respiratory illness (SARI) patients ≥ 20 years, combining data from these networks during Alpha (March–June)- and Delta (June–December)-dominant periods, 2021.
Methods:
Forty-six participating hospitals across 14 countries follow a similar generic protocol using the test-negative case–control design. We defined complete primary series vaccination (PSV) as two doses of a two-dose or one of a single-dose vaccine ≥ 14 days before onset.
Results:
We included 1,087 cases (538 controls) and 1,669 cases (1,442 controls) in the Alpha- and Delta-dominant periods, respectively. During the Alpha period, VE against hospitalisation with SARS-CoV2 for complete Comirnaty PSV was 85% (95% CI: 69–92) overall and 75% (95% CI: 42–90) in those aged ≥ 80 years. During the Delta period, among SARI patients ≥ 20 years with symptom onset ≥ 150 days from last PSV dose, VE for complete Comirnaty PSV was 54% (95% CI: 18–74). Among those receiving Comirnaty PSV and mRNA booster (any product) ≥ 150 days after last PSV dose, VE was 91% (95% CI: 57–98). In time-since-vaccination analysis, complete all-product PSV VE was > 90% in those with their last dose < 90 days before onset; ≥ 70% in those 90–179 days before onset.
Conclusions:
Our results from this EU multi-country hospital setting showed that VE for complete PSV alone was higher in the Alpha- than the Delta-dominant period, and addition of a first booster dose during the latter period increased VE to over 90%.Key public health message: - What did you want to address in this study? To understand how well the COVID-19 vaccine was performing in Europe against hospitalisation during SARS-CoV-2 Alpha and Delta variant periods, we present vaccine effectiveness results from a multi-country study of complete and booster dose COVID-19 vaccination among adults (aged 20 years and over).
- What have we learnt from this study? Between March and June 2021 (Alpha period), vaccine effectiveness against hospitalisation with laboratory-confirmed SARS-CoV-2 was 43% for partial vaccination and 86% for complete vaccination. For June to December 2021 (Delta period), vaccine effectiveness for complete vaccination was lower (52%) but with addition of an mRNA booster dose, effectiveness reached 91%, and remained > 90% up to 119 days after the booster dose.
- What are the implications of your findings for public health? In Europe in 2021, COVID-19 vaccine effectiveness results for the Alpha period indicated an excellent benefit for preventing hospitalisation after complete vaccination. During Delta variant circulation, however, a booster dose was required to achieve this level of effectiveness, and this was maintained for up to 4 months post booster.info:eu-repo/semantics/publishedVersio
Vaccine effectiveness against COVID-19 hospitalisation in adults (≥ 20 years) during Omicron-dominant circulation: I-MOVE-COVID-19 and VEBIS SARI VE networks, Europe, 2021 to 2022
Introduction: The I-MOVE-COVID-19 and VEBIS hospital networks have been measuring COVID-19 vaccine effectiveness (VE) in participating European countries since early 2021. Aim: We aimed to measure VE against PCR-confirmed SARS-CoV-2 in patients ≥ 20 years hospitalised with severe acute respiratory infection (SARI) from December 2021 to July 2022 (Omicron-dominant period). Methods: In both networks, 46 hospitals (13 countries) follow a similar test-negative case-control protocol. We defined complete primary series vaccination (PSV) and first booster dose vaccination as last dose of either vaccine received ≥ 14 days before symptom onset (stratifying first booster into received < 150 and ≥ 150 days after last PSV dose). We measured VE overall, by vaccine category/product, age group and time since first mRNA booster dose, adjusting by site as a fixed effect, and by swab date, age, sex, and presence/absence of at least one commonly collected chronic condition. Results: We included 2,779 cases and 2,362 controls. The VE of all vaccine products combined against hospitalisation for laboratory-confirmed SARS-CoV-2 was 43% (95% CI: 29-54) for complete PSV (with last dose received ≥ 150 days before onset), while it was 59% (95% CI: 51-66) after addition of one booster dose. The VE was 85% (95% CI: 78-89), 70% (95% CI: 61-77) and 36% (95% CI: 17-51) for those with onset 14-59 days, 60-119 days and 120-179 days after booster vaccination, respectively. Conclusions: Our results suggest that, during the Omicron period, observed VE against SARI hospitalisation improved with first mRNA booster dose, particularly for those having symptom onset < 120 days after first booster dose.Key public health message: 1. What did you want to address in this study?
In order to understand how well the COVID-19 vaccine is performing in Europe against hospitalisation during the period when the SARS-CoV-2 Omicron variant was circulating, we investigated vaccine effectiveness using data from a multi-country study of complete and booster-dose COVID-19 vaccination among adults aged 20 years and over.
2. What have we learnt from this study?
Between December 2021 and July 2022, vaccine effectiveness against hospitalisation with laboratory-confirmed SARS-CoV-2 was 43% for complete vaccination. With addition of an mRNA booster dose, effectiveness was 59% overall. It was higher when onset of illness was close to the date of the last vaccination, at 85% when last booster dose was 14–59 days before onset, at 70% for 60–119 days, and falling below 40% for 120–179 days.
3. What are the implications of your findings for public health?
In European hospital settings in 2022, during the Omicron period, COVID-19 mRNA booster vaccine provided an improved benefit for preventing hospitalisation, particularly if disease onset was within 4 months of receiving the booster dose.info:eu-repo/semantics/publishedVersio
Demographic, clinical and antibody characteristics of patients with digital ulcers in systemic sclerosis: data from the DUO Registry
OBJECTIVES: The Digital Ulcers Outcome (DUO) Registry was designed to describe the clinical and antibody characteristics, disease course and outcomes of patients with digital ulcers associated with systemic sclerosis (SSc).
METHODS: The DUO Registry is a European, prospective, multicentre, observational, registry of SSc patients with ongoing digital ulcer disease, irrespective of treatment regimen. Data collected included demographics, SSc duration, SSc subset, internal organ manifestations, autoantibodies, previous and ongoing interventions and complications related to digital ulcers.
RESULTS: Up to 19 November 2010 a total of 2439 patients had enrolled into the registry. Most were classified as either limited cutaneous SSc (lcSSc; 52.2%) or diffuse cutaneous SSc (dcSSc; 36.9%). Digital ulcers developed earlier in patients with dcSSc compared with lcSSc. Almost all patients (95.7%) tested positive for antinuclear antibodies, 45.2% for anti-scleroderma-70 and 43.6% for anticentromere antibodies (ACA). The first digital ulcer in the anti-scleroderma-70-positive patient cohort occurred approximately 5 years earlier than the ACA-positive patient group.
CONCLUSIONS: This study provides data from a large cohort of SSc patients with a history of digital ulcers. The early occurrence and high frequency of digital ulcer complications are especially seen in patients with dcSSc and/or anti-scleroderma-70 antibodies
COVID-19 symptoms at hospital admission vary with age and sex: results from the ISARIC prospective multinational observational study
Background:
The ISARIC prospective multinational observational study is the largest cohort of hospitalized patients with COVID-19. We present relationships of age, sex, and nationality to presenting symptoms.
Methods:
International, prospective observational study of 60 109 hospitalized symptomatic patients with laboratory-confirmed COVID-19 recruited from 43 countries between 30 January and 3 August 2020. Logistic regression was performed to evaluate relationships of age and sex to published COVID-19 case definitions and the most commonly reported symptoms.
Results:
‘Typical’ symptoms of fever (69%), cough (68%) and shortness of breath (66%) were the most commonly reported. 92% of patients experienced at least one of these. Prevalence of typical symptoms was greatest in 30- to 60-year-olds (respectively 80, 79, 69%; at least one 95%). They were reported less frequently in children (≤ 18 years: 69, 48, 23; 85%), older adults (≥ 70 years: 61, 62, 65; 90%), and women (66, 66, 64; 90%; vs. men 71, 70, 67; 93%, each P < 0.001). The most common atypical presentations under 60 years of age were nausea and vomiting and abdominal pain, and over 60 years was confusion. Regression models showed significant differences in symptoms with sex, age and country.
Interpretation:
This international collaboration has allowed us to report reliable symptom data from the largest cohort of patients admitted to hospital with COVID-19. Adults over 60 and children admitted to hospital with COVID-19 are less likely to present with typical symptoms. Nausea and vomiting are common atypical presentations under 30 years. Confusion is a frequent atypical presentation of COVID-19 in adults over 60 years. Women are less likely to experience typical symptoms than men
Flux de matières en suspension, de mercure et de PCB particulaires dans le Rhône, du Léman à la Méditerranée
The knowledge of particulate contaminant fluxes transported by rivers is crucial for the management of environmental pollution, but it is compromised by significant technological, methodological and scientific difficulties. Through an intensive observational effort made possible by the Rhône Sediment Observatory, this research focused on the spatio-temporal dynamics of particulate contaminant -mercury and PCBs- fluxes in the Rhône and its major tributaries as regards suspended particulate matters (SPM) contribution : the Arve, Saône, Isère and Durance rivers. The chosen and validated observation strategy is based on the quasi-continuous monitoring of discharge, SPM concentrations (by turbidimetry) and contaminant contents (using sediment integrative traps), associated with samples of reference (manual sampling or centrifugation) and a detailed characterization of particles in terms of grain-size and organic carbon contents. From measured and existing data, the study of spatio-temporal variability of parameters and of their factors of influence allowed us to propose and validate suitable methods for the quantification of particulate fluxes at the event, annual and inter-annual scales. These results provide a new insight into the particulate fluxes throughout the Rhône river system and highlight the importance of major hydro-sedimentary events and of the interactions with hydro-power schemes. Such complex hydro-sedimentary processes motivate the improvement of the numerical simulation of the Rhône riverLa connaissance des flux de contaminants particulaires véhiculés par les cours d'eau est cruciale pour la gestion des pollutions environnementales, mais elle se heurte à d'importantes difficultés technologiques, méthodologiques et scientifiques. Grâce à un effort d'observation intensive rendue possible par l'Observatoire des sédiments du Rhône, ce travail de recherche s'est concentré sur la dynamique spatio-temporelle des flux de contaminants particulaires – mercure et PCB- au sein du Rhône et de ses principaux affluents contributeurs en matières en suspension (MES) : l'Arve, la Saône, l'Isère et la Durance. La stratégie d'observation choisie et validée privilégie un échantillonnage quasi-continu des débits, concentrations en MES (turbidimétrie) et teneurs en contaminants (par piège intégratif), associé à des prélèvements de référence (manuels, ou par centrifugation) et à une caractérisation détaillée des particules en termes de granulométrie et de taux de carbone organique. A partir des données ainsi mesurées et existantes, l'étude de la variabilité spatio-temporelle des différents paramètres et de leurs facteurs d'influence a permis de proposer et valider des méthodes adaptées pour la quantification des flux particulaires à l'échelle événementielle, annuelle et inter-annuelle. Ces résultats fournissent une nouvelle vision des flux particulaires dans le Rhône à l'échelle du réseau hydrographique, et soulignent l'importance des évènements hydro-sédimentaires majeurs et des interactions avec les aménagements hydro-électriques. Ces processus hydro-sédimentaires complexes motivent une contribution à l'amélioration de la simulation numérique du Rhôn
Fluxes of suspended particulate matters, particulate mercury and PCBs in the Rhöne river from lake Geneva to the Mediterranean
La connaissance des flux de contaminants particulaires véhiculés par les cours d'eau est cruciale pour la gestion des pollutions environnementales, mais elle se heurte à d'importantes difficultés technologiques, méthodologiques et scientifiques. Grâce à un effort d'observation intensive rendue possible par l'Observatoire des sédiments du Rhône, ce travail de recherche s'est concentré sur la dynamique spatio-temporelle des flux de contaminants particulaires – mercure et PCB- au sein du Rhône et de ses principaux affluents contributeurs en matières en suspension (MES) : l'Arve, la Saône, l'Isère et la Durance. La stratégie d'observation choisie et validée privilégie un échantillonnage quasi-continu des débits, concentrations en MES (turbidimétrie) et teneurs en contaminants (par piège intégratif), associé à des prélèvements de référence (manuels, ou par centrifugation) et à une caractérisation détaillée des particules en termes de granulométrie et de taux de carbone organique. A partir des données ainsi mesurées et existantes, l'étude de la variabilité spatio-temporelle des différents paramètres et de leurs facteurs d'influence a permis de proposer et valider des méthodes adaptées pour la quantification des flux particulaires à l'échelle événementielle, annuelle et inter-annuelle. Ces résultats fournissent une nouvelle vision des flux particulaires dans le Rhône à l'échelle du réseau hydrographique, et soulignent l'importance des évènements hydro-sédimentaires majeurs et des interactions avec les aménagements hydro-électriques. Ces processus hydro-sédimentaires complexes motivent une contribution à l'amélioration de la simulation numérique du RhôneThe knowledge of particulate contaminant fluxes transported by rivers is crucial for the management of environmental pollution, but it is compromised by significant technological, methodological and scientific difficulties. Through an intensive observational effort made possible by the Rhône Sediment Observatory, this research focused on the spatio-temporal dynamics of particulate contaminant -mercury and PCBs- fluxes in the Rhône and its major tributaries as regards suspended particulate matters (SPM) contribution : the Arve, Saône, Isère and Durance rivers. The chosen and validated observation strategy is based on the quasi-continuous monitoring of discharge, SPM concentrations (by turbidimetry) and contaminant contents (using sediment integrative traps), associated with samples of reference (manual sampling or centrifugation) and a detailed characterization of particles in terms of grain-size and organic carbon contents. From measured and existing data, the study of spatio-temporal variability of parameters and of their factors of influence allowed us to propose and validate suitable methods for the quantification of particulate fluxes at the event, annual and inter-annual scales. These results provide a new insight into the particulate fluxes throughout the Rhône river system and highlight the importance of major hydro-sedimentary events and of the interactions with hydro-power schemes. Such complex hydro-sedimentary processes motivate the improvement of the numerical simulation of the Rhône rive
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