23 research outputs found
Nonminimal Inflation on the Randall-Sundrum II Brane with Induced Gravity
We study an inflation model that inflaton field is non-minimally coupled to
the induced scalar curvature on the Randall-Sundrum (RS) II brane. We
investigate the effects of the non-minimal coupling on the inflationary
dynamics of this braneworld model. Our study shows that the number of e-folds
decreases by increasing the value of the non-minimal coupling. We compare our
model parameters with the minimal case and also with recent observational data.
In comparison with recent observation, we obtain a constraint on the values
that the non-minimal coupling attains.Comment: 15 pages, 5 figure
On the dissipative non-minimal braneworld inflation
We study the effects of the non-minimal coupling on the dissipative dynamics
of the warm inflation in a braneworld setup, where the inflaton field is
non-minimally coupled to induced gravity on the warped DGP brane. We study with
details the effects of the non-minimal coupling and dissipation on the
inflationary dynamics on the normal DGP branch of this scenario in the
high-dissipation and high-energy regime. We show that incorporation of the
non-minimal coupling in this setup decreases the number of e-folds relative to
the minimal case. We also compare our model parameters with recent
observational data.Comment: 32 pages, 6 figures. arXiv admin note: substantial text overlap with
arXiv:1001.044
HistĂłrias em IntercompreensĂŁo: a voz dos autores
Este relatĂłrio foi elaborado no Ăąmbito do lote 7 (Inserção Curricular da IntercompreensĂŁo) do projeto MIRIADI. Trata-se de um lote cujo objetivo Ă© desenvolver processos de integração curricular da IntercompreensĂŁo (IC) Ă distĂąncia em grupos plurilingues, a partir de trabalhos experimentais levados a cabo no terreno e realizados numa lĂłgica de investigação-ação, tendo em vista compreender as âcondiçÔes de exequibilidadeâ desta abordagem didĂĄtica nos curricula de aprendizagem de lĂnguas e de formação. Procura-se, em particular, identificar empiricamente permeabilidades e resistĂȘncias dos contextos e dos atores educativos face Ă IC como conceito prĂĄtico com relevĂąncia profissional, bem como vantagens e limites do ponto de vista da aprendizagem linguĂstica que possam justificar o seu valor educativo.
A IntercompreensĂŁo tem vindo, nas Ășltimas dĂ©cadas, a percorrer um percurso de destaque em DidĂĄtica de LĂnguas (sobretudo Estrangeiras) na Europa e fora dela, em particular no Ăąmbito das atuais abordagens plurais, ocupando um lugar de visibilidade nos discursos e prĂĄticas de investigação e formação desta disciplina e contribuindo para a tonalidade da sua voz mais propriamente politico-ideolĂłgica (AlarcĂŁo, Andrade, AraĂșjo e SĂĄ, Melo-Pfeifer & Santos, 2009). Contudo, a presença do conceito nos espaços concretos de educação em lĂnguas (tais como escolas, liceus, universidades e outras instituiçÔes) Ă© extremamente dĂ©bil, limitando-se a algumas experiĂȘncias pontuais, sob o impulso (e mesmo a condução), na maior parte dos casos, dos investigadores e tendo como finalidade principal a produção de conhecimento didĂĄtico (Degache & Tavares, 2011). Assim, pouco se sabe ainda do que pode ser efetivamente o contributo da IC para o projeto educativo das instituiçÔes, e muito menos do modo como o conceito pode ser integrado em prĂĄticas curriculares continuadas e sistemĂĄticas de educação em lĂnguas, sabendo-se que estas mesmas prĂĄticas sĂŁo reguladas por mĂșltiplas instĂąncias, internas e externas, objetivas e subjetivas, que atuam a vĂĄrios nĂveis (macro, meso, micro) e que nĂŁo podem deixar de ser consideradas.
O lote 7 de Miriadi propÔe abordar estas questÔes, relativas à integração curricular da IC, a partir de uma outra lógica epistemológica, uma lógica que
nĂŁo busca propostas desenhadas a partir dos resultados da investigação e orientadas para a transferĂȘncia do conhecimento, ou seja, que nĂŁo reflete uma perspetiva aplicacionista do saber didĂĄtico. Ao invĂ©s, o trabalho realizado por este lote entende o currĂculo como uma construção dinĂąmica que se (re)define e se (re)negocia em função dos contextos especĂficos em que ocorre, atribuindo-lhe por conseguinte uma natureza contingente, situada, intersubjetiva e local. Nesta perspetiva sĂłcio-construtivista, em que o currĂculo Ă© uma co-construção que ocorre entre sujeitos precisos nas suas açÔes educativas quotidianas, a integração curricular da IC produz-se no Ăąmbito destas açÔes, ou, dito de outra forma, atravĂ©s de prĂĄticas situadas nas especificidades e possibilidades que oferecem os contextos concretos, em particular os sujeitos que deles fazem parte.
Esta perspetiva de trabalho do lote 7 parece-nos ser a mais coerente com o posicionamento teĂłrico relativamente Ă IC enquanto conceito didĂĄtico do projeto MIRIADI. Com efeito, estĂĄ amplamente estudado que a IC tem vindo a ser tratada segundo diferentes pontos de vista, de acordo com as escolas epistemolĂłgicas e as proveniĂȘncias e ancoragens disciplinares dos seus autores (para uma revisĂŁo recente, ver AraĂșjo e SĂĄ, 2013; Olliver, 2013). No Ăąmbito do percurso especĂfico de investigação/formação/intervenção do grupo e-Gala (www.e-gala.eu), no seio do qual emergiu MIRIADI, em particular das suas mais disseminadas realizaçÔes â as plataformas Galanet (www.galanet.eu) e Galapro (www-galapro.eu/sessions) -, a IC Ă© abordada numa perspetiva socio-construtivista do saber e da relação comunicativa. Dito de outra forma, MIRIADI define a IC como um processo e uma prĂĄtica interacional que ocorre entre sujeitos, atores sociais que vivem em diferentes lĂnguas e que se implicam coletivamente num quadro dialĂłgico âoĂč le grand enjeu devient la construction dâun territoire de parole partagĂ©â (AraĂșjo e SĂĄ, Degache & Spita, 2010: 26). Esta aceção interacionista (e plurilingue e intercultural) Ă© complementada pelo recurso a meios de comunicação tecnolĂłgicos.
Definido o enquadramento conceptual e metodológico do lote7, importa agora explicitar como se desenvolveu o trabalho ao longo dos seus 36 meses de execução.
O lote organizou-se em 3 grandes etapas, que envolveram toda a equipa:
Etapa 1. Identificação e caracterização de contextos de ensino e formação linguĂstica suscetĂveis de poderem beneficiar de uma integração curricular da IC (plurilingue e Ă distĂąncia) (os resultados desta etapa encontram-se na Prestation 7.1. do projeto, referida na nota anterior).
Etapa 2. Planificação e desenvolvimento de mĂșltiplas e diversificadas iniciativas de divulgação da IC nesses mesmos contextos, destinadas Ă comunidade educativa na generalidade (pĂșblicos, professores/formadores, ĂłrgĂŁos de gestĂŁo, funcionĂĄrios, etc.), tendo em vista a sua familiarização com a IC enquanto conceito didĂĄtico e prĂĄtica de educação em lĂnguas, de modo a criar condiçÔes (e aberturas) para a sua integração curricular; uma atenção especial foi dada Ă formação dos agentes educativos.
Etapa 3. Planificação, experimentação e avaliação, numa lĂłgica de investigação-ação e em rede (aproveitando-se as potencialidades das plataformas Galapro e Galanet), de propostas de integração curricular da IC; pretendia-se, em especial, com estas propostas, identificar contributos da IC para a qualidade dos projetos educativos dos contextos de integração caracterizados (na etapa 1), mas tambĂ©m constrangimentos, fragilidades, obstĂĄculos e resistĂȘncias, numa abordagem crĂtica do conceito que fosse sensĂvel Ă s propriedades dos espaços-alvo de educação em lĂnguas. Neste sentido, foram recolhidos, analisados e discutidos, em função das suas caracterĂsticas contextuais (definidas na etapa 1), dados empĂricos de natureza diversa (produçÔes dos alunos, transcriçÔes de excertos de aulas, testemunhos espontĂąneos de alunos e professores, respostas a questionĂĄrios, entre outros).
Este Rapport Ă© um produto da Etapa 3. Trata-se de um documento multimĂ©dia, que pretende dar acesso sistematizado e crĂtico aos discursos e vozes de sujeitos reais que experienciaram propostas didĂĄticas concretas de IC elaboradas durante esta etapa do lote.
Mais concretamente, este relatĂłrio oferece 6 narrativas de estudos de caso (3 em contexto de ensino secundĂĄrio e outros 3 no ensino superior), realizados em vĂĄrios paĂses (Brasil, França, ItĂĄlia Portugal e RepĂșblica da MaurĂcia), contendo uma descrição detalhada das situaçÔes educativas experimentadas e uma anĂĄlise dos dados recolhidos, com apresentação dos recursos e materiais utilizados e testemunhos dos sujeitos concretos (professores e alunos). Incluem-se igualmente os instrumentos de recolha de dados e alguns exemplos dos mesmos.
Cada narrativa obedece a uma mesma estrutura discursiva, de forma a mais facilmente poderem ser comparåveis, permitindo a extração de conclusÔes transversais aos vårios estudos: introdução; descrição do contexto de intervenção; descrição da intervenção (objetivos, atividades, com acesso aos recursos utilizados, e avaliação); resultados obtidos; conclusÔes e implicaçÔes
A secção final, âTĂ©moignagesâ, apresenta-se sob a forma de um conjunto de vĂdeos e podcasts, identificados de acordo com a instituição parceira do projeto que os recolheu e organizados segundo trĂȘs critĂ©rios:
âą as lĂnguas dos locutores (espanhol, francĂȘs, italiano e portuguĂȘs);
âą os contextos de formação onde decorreram as experiĂȘncias de IC (ensino secundĂĄrio e ensino universitĂĄrio);
âą o tipo de intervenientes nas experiĂȘncias de IC (alunos ou professores).
Assume-se mais uma vez, neste Rapport, as dinĂąmicas de trabalho plurilingue da equipa Miriadi, cuja rentabilidade para a produção do conhecimento didĂĄtico foi analisada e evidenciada no Ăąmbito de projetos anteriores (ver Melo-Pfeifer, 2014) e se encontra ilustrada, numa outra linguagem, nos nossos postais (disponĂveis no Facebook). Assim, com exceção desta introdução, que foi traduzida para francĂȘs (ver acima), o documento encontra-se nas lĂnguas de trabalho dos membros da equipa que o redigiram.Ce rapport a Ă©tĂ© prĂ©parĂ© par le lot 7 (Insertion Curriculaire de lâIntercomprĂ©hension) du projet MIRIADI.
Il s'agit d'un lot dont lâobjectif est de dĂ©velopper des processus dâintĂ©gration curriculaire de lâIntercomprĂ©hension (IC) Ă distance dans des groupes plurilingues, Ă partir de travaux expĂ©rimentaux menĂ©s sur le terrain et rĂ©alisĂ©s dans une logique de recherche-action, pour comprendre les "conditions de faisabilitĂ©" de cette approche didactique dans les programmes d'apprentissage et de formation. Il est question, en particulier, d'identifier empiriquement des permĂ©abilitĂ©s et des rĂ©sistances des contextes (abordĂ©s Ă partir dâune approche holistique) et des acteurs Ă©ducatifs confrontĂ©s Ă lâIC en tant que concept pratique Ă visĂ©e professionnelle.
L'intercomprĂ©hension a, au cours des derniĂšres dĂ©cennies, rĂ©alisĂ© un parcours marquant dans l'enseignement des Langues (principalement ĂtrangĂšres) en Europe et en dehors, en particulier dans le contexte des approches plurielles, occupant une place de grande visibilitĂ© dans les discours et dans les pratiques de recherche et de formation de cette discipline et lui apportant une nette tonalitĂ© idĂ©ologique qui contribue pour la dĂ©finition de sa voix politique (AlarcĂŁo, Andrade, AraĂșjo e SĂĄ, Melo-Pfeifer & Santos, 2009). Cependant, la circulation du concept sur les terrains de l'Ă©ducation en langues (tels que les Ă©coles, les collĂšges, les universitĂ©s et autres institutions) est trĂšs faible, limitĂ©e Ă quelques expĂ©riences ponctuelles, sous l'impulsion (et mĂȘme la conduite), dans la plupart cas, des chercheurs, le but principal Ă©tant la production du savoir didactique (Degache & Tavares, 2011). Ainsi, on en sait peu sur ce que peut effectivement ĂȘtre la contribution de l'IC pour le projet Ă©ducatif des Ă©tablissements d'enseignement, et encore moins sur la maniĂšre dont elle peut ĂȘtre intĂ©grĂ©e dans les pratiques curriculaires continues et systĂ©matiques en langues, sachant que ces mĂȘmes pratiques sont rĂ©glementĂ©es par plusieurs instances, internes et externes, objectives et subjectives, qui agissent Ă diffĂ©rents niveaux (macro, mĂ©so, micro) et qui ne peuvent manquer d'ĂȘtre prises en considĂ©ration.
Le lot 7 de Miriadi propose dâaborder ces questions, liĂ©es Ă l'intĂ©gration curriculaire de lâIC, Ă partir d'une autre logique Ă©pistĂ©mologique : une logique qui ne cherche pas des propositions obtenues Ă partir des rĂ©sultats de la recherche et orientĂ©es vers le transfert de connaissance, c'est-Ă -dire qui ne reflĂšte pas une perspective applicationniste du savoir didactique. Dans un autre sens, on comprend le curriculum comme une construction dynamique qui se fait entre des sujets dans leurs activitĂ©s Ă©ducatives quotidiennes et qui se (re)dĂ©finit et se (re)nĂ©gocie selon les contextes, lui donnant un caractĂšre contingent, situĂ©, intersubjectif et local. Dans cette perspective socio-constructiviste, l'intĂ©gration curriculaire de lâIC se produit dans ces activitĂ©s, Ă travers des pratiques situĂ©es dans les spĂ©cificitĂ©s et les possibilitĂ©s offertes par les contextes concrets, en particulier par les sujets qui les construisent.
Cette approche de travail du lot 7 nous semble ĂȘtre la plus cohĂ©rente par rapport au positionnement thĂ©orique de lâIC en tant que concept didactique du projet MIRIADI. En effet, il est largement connu que l'IC est abordĂ©e selon diffĂ©rents points de vue, dĂ©pendants des Ă©coles Ă©pistĂ©mologiques et des origines et ancrages disciplinaires de leurs auteurs (pour une rĂ©vision, voir AraĂșjo e SĂĄ, 2013; Olliver, 2013 ). Dans le parcours spĂ©cifique du groupe de recherche / formation / intervention e-Gala (www.e-gala.eu), duquel a Ă©mergĂ© MIRIADI, et en particulier de ses rĂ©alisations les plus rĂ©pandues Galanet (www.galanet.eu) et Galapro (www-galapro.eu/sessions), lâIC est abordĂ©e dans une perspective socio-constructiviste du savoir et de la relation communicative, c'est-Ă -dire comme un processus et une pratique interactionnelle qui se produit entre individus, acteurs sociaux qui vivent dans diffĂ©rentes langues et qui sâ impliquent collectivement dans un cadre dialogique âoĂč le grand enjeu devient la construction dâun territoire de parole partagĂ©â (AraĂșjo e SĂĄ, Degache & Spita, 2010: 26). Ce sens interactionnel (et plurilingue et interculturel) est complĂ©tĂ© par l'utilisation de la communication technologique.
Lâencadrement conceptuel et mĂ©thodologique du lot 7 Ă©tant dĂ©fini, nous prĂ©sentons maintenant le plan de travail du lot au cours de ses 36 mois de mise en Ćuvre.
Le lot a été organisé en trois grandes étapes, qui ont impliqué la participation de toute l'équipe:
Ătape 1. Identification et caractĂ©risation des contextes d'enseignement et de formation linguistique susceptibles de bĂ©nĂ©ficier d'une intĂ©gration curriculaire de l'IC (plurilingue et Ă distance) (les rĂ©sultats de cette Ă©tape se trouvent dans la Prestation 7.1. du projet, voir note antĂ©rieure).
Ătape 2. Planification et dĂ©veloppement de multiples initiatives de diffusion de lâIC dans ces contextes, adressĂ©es Ă la communautĂ© Ă©ducative en gĂ©nĂ©ral (publics-cibles, enseignants / formateurs, organes de gestion, autres personnels, etc.), afin de se familiariser avec l'IC en tant que concept didactique et pratique dâĂ©ducation en langues, de maniĂšre Ă crĂ©er les conditions (et ouvertures) pour son intĂ©gration curriculaire; une attention particuliĂšre est accordĂ©e Ă la formation des agents Ă©ducatifs.
Ătape 3. Planification, expĂ©rimentation et Ă©valuation, dans une logique de recherche-action et de mise en rĂ©seau, de propositions d'intĂ©gration curriculaire de lâIC; il visait, en particulier, avec ces propositions, identifier non seulement les contributions de lâIC Ă la qualitĂ© des projets Ă©ducatifs des contextes d'intĂ©gration caractĂ©risĂ©s (dans lâĂ©tape 1), mais aussi les contraintes, les faiblesses, les obstacles et les rĂ©sistances, dans une approche critique du concept qui soit sensible aux spĂ©cificitĂ©s des espaces-cible de l'Ă©ducation en langues. En ce sens, des donnĂ©es empiriques de nature diverse (productions dâĂ©tudiants, tĂ©moignages d'Ă©tudiants et d'enseignants, rĂ©ponses Ă des questionnaires, transcriptions dâextraits de cours, entre autres) ont Ă©tĂ© recueillies, analysĂ©es et discutĂ©es, en fonction de leurs caractĂ©ristiques contextuelles (dĂ©finis Ă l'Ă©tape 1).
Ce Rapport est un produit de l'Ă©tape 3. Il sâagit dâun document multimĂ©dia qui donne accĂšs aux discours et voix des sujets rĂ©els qui ont expĂ©rimentĂ© les propositions didactiques de lâIC dĂ©veloppĂ©s au cours de cette derniĂšre Ă©tape du lot.
En particulier, ce rapport propose six rĂ©cits d'Ă©tudes de cas (3 dans un contexte dâenseignement secondaire et 3 autres dans l'enseignement supĂ©rieur), menĂ©es dans divers pays (BrĂ©sil, France, Italie, Portugal et la RĂ©publique de Maurice), contenant une description dĂ©taillĂ©e des situations Ă©ducatives expĂ©rimentĂ©es et une analyse des donnĂ©es recueillies, avec la prĂ©sentation des ressources et des matĂ©riaux utilisĂ©s et des tĂ©moignages de sujets (enseignants et Ă©tudiants). Il comprend Ă©galement des outils de collecte de donnĂ©es et quelques exemples de celles-ci.
Chaque rĂ©cit suit la mĂȘme structure du discours, afin qu'ils puissent ĂȘtre plus facilement comparĂ©s, permettant lâobtention de conclusions transversales aux diffĂ©rentes Ă©tudes: introduction; description du contexte d'intervention; description de l'intervention (objectifs, activitĂ©s, avec accĂšs aux ressources utilisĂ©es, et Ă©valuation); rĂ©sultats obtenus; conclusions et implications
La derniÚre section, "Témoignages", se présente sous la forme d'un ensemble de vidéos et de podcasts, identifiés conformément à l'institution partenaire du projet qui les a recueilli et organisés selon trois critÚres:
⹠les langues des locuteurs (espagnol, français, italien et portugais);
âą les contextes de formation oĂč ont eu lieu les expĂ©riences de lâlC (enseignement secondaire et universitaire);
âą le type dâintervenants dans les expĂ©riences dâIC (Ă©tudiants ou enseignants).
Dans ce Rapport, nous assumons les dynamiques de travail plurilingue de lâĂ©quipe Miriadi, dont la rentabilitĂ© pour la production de la connaissance didactique a Ă©tĂ© analysĂ©e et dĂ©montrĂ©e dans le cadre de projets antĂ©rieurs (voir Melo-Pfeifer, 2014) et qui a Ă©tĂ© illustrĂ©, dans un autre langage, dans nos cartes-postales (disponibles sur Facebook). Ainsi, Ă lâexception de cette Introduction, qui a Ă©tĂ© traduite du portugais, ce document se trouve rĂ©digĂ© dans les langues de travail des membres de lâĂ©quipe qui lâont Ă©laborĂ©
SARS-CoV-2 susceptibility and COVID-19 disease severity are associated with genetic variants affecting gene expression in a variety of tissues
Variability in SARS-CoV-2 susceptibility and COVID-19 disease severity between individuals is partly due to
genetic factors. Here, we identify 4 genomic loci with suggestive associations for SARS-CoV-2 susceptibility
and 19 for COVID-19 disease severity. Four of these 23 loci likely have an ethnicity-specific component.
Genome-wide association study (GWAS) signals in 11 loci colocalize with expression quantitative trait loci
(eQTLs) associated with the expression of 20 genes in 62 tissues/cell types (range: 1:43 tissues/gene),
including lung, brain, heart, muscle, and skin as well as the digestive system and immune system. We perform
genetic fine mapping to compute 99% credible SNP sets, which identify 10 GWAS loci that have eight or fewer
SNPs in the credible set, including three loci with one single likely causal SNP. Our study suggests that the
diverse symptoms and disease severity of COVID-19 observed between individuals is associated with variants across the genome, affecting gene expression levels in a wide variety of tissue types
Gaia Early Data Release 3: Structure and properties of the Magellanic Clouds
We compare the Gaia DR2 and Gaia EDR3 performances in the study of the Magellanic Clouds and show the clear improvements in precision and accuracy in the new release. We also show that the systematics still present in the data make the determination of the 3D geometry of the LMC a difficult endeavour; this is at the very limit of the usefulness of the Gaia EDR3 astrometry, but it may become feasible with the use of additional external data. We derive radial and tangential velocity maps and global profiles for the LMC for the several subsamples we defined. To our knowledge, this is the first time that the two planar components of the ordered and random motions are derived for multiple stellar evolutionary phases in a galactic disc outside the Milky Way, showing the differences between younger and older phases. We also analyse the spatial structure and motions in the central region, the bar, and the disc, providing new insights into features and kinematics. Finally, we show that the Gaia EDR3 data allows clearly resolving the Magellanic Bridge, and we trace the density and velocity flow of the stars from the SMC towards the LMC not only globally, but also separately for young and evolved populations. This allows us to confirm an evolved population in the Bridge that is slightly shift from the younger population. Additionally, we were able to study the outskirts of both Magellanic Clouds, in which we detected some well-known features and indications of new ones
Detailed stratified GWAS analysis for severe COVID-19 in four European populations
Given the highly variable clinical phenotype of Coronavirus disease 2019 (COVID-19), a deeper analysis of the host genetic contribution to severe COVID-19 is important to improve our understanding of underlying disease mechanisms. Here, we describe an extended genome-wide association meta-analysis of a well-characterized cohort of 3255 COVID-19 patients with respiratory failure and 12â488 population controls from Italy, Spain, Norway and Germany/Austria, including stratified analyses based on age, sex and disease severity, as well as targeted analyses of chromosome Y haplotypes, the human leukocyte antigen region and the SARS-CoV-2 peptidome. By inversion imputation, we traced a reported association at 17q21.31 to a ~0.9-Mb inversion polymorphism that creates two highly differentiated haplotypes and characterized the potential effects of the inversion in detail. Our data, together with the 5th release of summary statistics from the COVID-19 Host Genetics Initiative including non-Caucasian individuals, also identified a new locus at 19q13.33, including NAPSA, a gene which is expressed primarily in alveolar cells responsible for gas exchange in the lung.S.E.H. and C.A.S. partially supported genotyping through a philanthropic donation. A.F. and D.E. were supported by a grant from the German Federal Ministry of Education and COVID-19 grant Research (BMBF; ID:01KI20197); A.F., D.E. and F.D. were supported by the Deutsche Forschungsgemeinschaft Cluster of Excellence âPrecision Medicine in Chronic Inflammationâ (EXC2167). D.E. was supported by the German Federal Ministry of Education and Research (BMBF) within the framework of the Computational Life Sciences funding concept (CompLS grant 031L0165). D.E., K.B. and S.B. acknowledge the Novo Nordisk Foundation (NNF14CC0001 and NNF17OC0027594). T.L.L., A.T. and O.Ă. were funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), project numbers 279645989; 433116033; 437857095. M.W. and H.E. are supported by the German Research Foundation (DFG) through the Research Training Group 1743, âGenes, Environment and Inflammationâ. L.V. received funding from: Ricerca Finalizzata Ministero della Salute (RF-2016-02364358), Italian Ministry of Health âCV PREVITALââstrategie di prevenzione primaria cardiovascolare primaria nella popolazione italiana; The European Union (EU) Programme Horizon 2020 (under grant agreement No. 777377) for the project LITMUS- and for the project âREVEALâ; Fondazione IRCCS Caâ Granda âRicerca correnteâ, Fondazione Sviluppo Caâ Granda âLiver-BIBLEâ (PR-0391), Fondazione IRCCS Caâ Granda â5permilleâ âCOVID-19 Biobankâ (RC100017A). A.B. was supported by a grant from Fondazione Cariplo to Fondazione Tettamanti: âBio-banking of Covid-19 patient samples to support national and international research (Covid-Bank). This research was partly funded by an MIUR grant to the Department of Medical Sciences, under the program âDipartimenti di Eccellenza 2018â2022â. This study makes use of data generated by the GCAT-Genomes for Life. Cohort study of the Genomes of Catalonia, FundaciĂł IGTP (The Institute for Health Science Research Germans Trias i Pujol) IGTP is part of the CERCA Program/Generalitat de Catalunya. GCAT is supported by AcciĂłn de DinamizaciĂłn del ISCIII-MINECO and the Ministry of Health of the Generalitat of Catalunya (ADE 10/00026); the AgĂšncia de GestiĂł dâAjuts Universitaris i de Recerca (AGAUR) (2017-SGR 529). M.M. received research funding from grant PI19/00335 AcciĂłn EstratĂ©gica en Salud, integrated in the Spanish National RDI Plan and financed by ISCIII-SubdirecciĂłn General de EvaluaciĂłn and the Fondo Europeo de Desarrollo Regional (European Regional Development Fund (FEDER)-Una manera de hacer Europaâ). B.C. is supported by national grants PI18/01512. X.F. is supported by the VEIS project (001-P-001647) (co-funded by the European Regional Development Fund (ERDF), âA way to build Europeâ). Additional data included in this study were obtained in part by the COVICAT Study Group (Cohort Covid de Catalunya) supported by IsGlobal and IGTP, European Institute of Innovation & Technology (EIT), a body of the European Union, COVID-19 Rapid Response activity 73A and SR20-01024 La Caixa Foundation. A.J. and S.M. were supported by the Spanish Ministry of Economy and Competitiveness (grant numbers: PSE-010000-2006-6 and IPT-010000-2010-36). A.J. was also supported by national grant PI17/00019 from the AcciĂłn EstratĂ©gica en Salud (ISCIII) and the European Regional Development Fund (FEDER). The Basque Biobank, a hospital-related platform that also involves all Osakidetza health centres, the Basque governmentâs Department of Health and Onkologikoa, is operated by the Basque Foundation for Health Innovation and Research-BIOEF. M.C. received Grants BFU2016-77244-R and PID2019-107836RB-I00 funded by the Agencia Estatal de InvestigaciĂłn (AEI, Spain) and the European Regional Development Fund (FEDER, EU). M.R.G., J.A.H., R.G.D. and D.M.M. are supported by the âSpanish Ministry of Economy, Innovation and Competition, the Instituto de Salud Carlos IIIâ (PI19/01404, PI16/01842, PI19/00589, PI17/00535 and GLD19/00100) and by the Andalussian government (Proyectos EstratĂ©gicos-Fondos Feder PE-0451-2018, COVID-Premed, COVID GWAs). The position held by Itziar de Rojas Salarich is funded by grant FI20/00215, PFIS Contratos Predoctorales de FormaciĂłn en InvestigaciĂłn en Salud. Enrique CalderĂłnâs team is supported by CIBER of Epidemiology and Public Health (CIBERESP), âInstituto de Salud Carlos IIIâ. J.C.H. reports grants from Research Council of Norway grant no 312780 during the conduct of the study. E.S. reports grants from Research Council of Norway grant no. 312769. The BioMaterialBank Nord is supported by the German Center for Lung Research (DZL), Airway Research Center North (ARCN). The BioMaterialBank Nord is member of popgen 2.0 network (P2N). P.K. Bergisch Gladbach, Germany and the Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, Cologne, Germany. He is supported by the German Federal Ministry of Education and Research (BMBF). O.A.C. is supported by the German Federal Ministry of Research and Education and is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germanyâs Excellence StrategyâCECAD, EXC 2030â390661388. The COMRI cohort is funded by Technical University of Munich, Munich, Germany. This work was supported by grants of the Rolf M. Schwiete Stiftung, the Saarland University, BMBF and The States of Saarland and Lower Saxony. K.U.L. is supported by the German Research Foundation (DFG, LU-1944/3-1). Genotyping for the BoSCO study is funded by the Institute of Human Genetics, University Hospital Bonn. F.H. was supported by the Bavarian State Ministry for Science and Arts. Part of the genotyping was supported by a grant to A.R. from the German Federal Ministry of Education and Research (BMBF, grant: 01ED1619A, European Alzheimer DNA BioBank, EADB) within the context of the EU Joint ProgrammeâNeurodegenerative Disease Research (JPND). Additional funding was derived from the German Research Foundation (DFG) grant: RA 1971/6-1 to A.R. P.R. is supported by the DFG (CCGA Sequencing Centre and DFG ExC2167 PMI and by SH state funds for COVID19 research). F.T. is supported by the Clinician Scientist Program of the Deutsche Forschungsgemeinschaft Cluster of Excellence âPrecision Medicine in Chronic Inflammationâ (EXC2167). C.L. and J.H. are supported by the German Center for Infection Research (DZIF). T.B., M.M.B., O.W. und A.H. are supported by the Stiftung UniversitĂ€tsmedizin Essen. M.A.-H. was supported by Juan de la Cierva Incorporacion program, grant IJC2018-035131-I funded by MCIN/AEI/10.13039/501100011033. E.C.S. is supported by the Deutsche Forschungsgemeinschaft (DFG; SCHU 2419/2-1).Peer reviewe
Detailed stratified GWAS analysis for severe COVID-19 in four European populations
Given the highly variable clinical phenotype of Coronavirus disease 2019 (COVID-19), a deeper analysis of the host genetic contribution to severe COVID-19 is important to improve our understanding of underlying disease mechanisms. Here, we describe an extended GWAS meta-analysis of a well-characterized cohort of 3,260 COVID-19 patients with respiratory failure and 12,483 population controls from Italy, Spain, Norway and Germany/Austria, including stratified analyses based on age, sex and disease severity, as well as targeted analyses of chromosome Y haplotypes, the human leukocyte antigen (HLA) region and the SARS-CoV-2 peptidome. By inversion imputation, we traced a reported association at 17q21.31 to a highly pleiotropic âŒ0.9-Mb inversion polymorphism and characterized the potential effects of the inversion in detail. Our data, together with the 5th release of summary statistics from the COVID-19 Host Genetics Initiative, also identified a new locus at 19q13.33, including NAPSA, a gene which is expressed primarily in alveolar cells responsible for gas exchange in the lung.Andre Franke and David Ellinghaus were supported by a grant from the German
Federal Ministry of Education and Research (01KI20197), Andre Franke, David
Ellinghaus and Frauke Degenhardt were supported by the Deutsche
Forschungsgemeinschaft Cluster of Excellence âPrecision Medicine in Chronic
Inflammationâ (EXC2167). David Ellinghaus was supported by the German Federal
Ministry of Education and Research (BMBF) within the framework of the
Computational Life Sciences funding concept (CompLS grant 031L0165). David
Ellinghaus, Karina Banasik and SĂžren Brunak acknowledge the Novo Nordisk
Foundation (grant NNF14CC0001 and NNF17OC0027594). Tobias L. Lenz, Ana
Teles and Onur Ăzer were funded by the Deutsche Forschungsgemeinschaft (DFG,
German Research Foundation), project numbers 279645989; 433116033; 437857095. Mareike Wendorff and Hesham ElAbd are supported by the German
Research Foundation (DFG) through the Research Training Group 1743, "Genes,
Environment and Inflammation". This project was supported by a Covid-19 grant from
the German Federal Ministry of Education and Research (BMBF; ID: 01KI20197).
Luca Valenti received funding from: Ricerca Finalizzata Ministero della Salute RF2016-02364358, Italian Ministry of Health ""CV PREVITAL â strategie di prevenzione
primaria cardiovascolare primaria nella popolazione italiana; The European Union
(EU) Programme Horizon 2020 (under grant agreement No. 777377) for the project
LITMUS- and for the project ""REVEAL""; Fondazione IRCCS Ca' Granda ""Ricerca
corrente"", Fondazione Sviluppo Ca' Granda ""Liver-BIBLE"" (PR-0391), Fondazione
IRCCS Ca' Granda ""5permille"" ""COVID-19 Biobank"" (RC100017A). Andrea Biondi
was supported by the grant from Fondazione Cariplo to Fondazione Tettamanti: "Biobanking of Covid-19 patient samples to support national and international research
(Covid-Bank). This research was partly funded by a MIUR grant to the Department of
Medical Sciences, under the program "Dipartimenti di Eccellenza 2018â2022". This
study makes use of data generated by the GCAT-Genomes for Life. Cohort study of
the Genomes of Catalonia, FundaciĂł IGTP. IGTP is part of the CERCA Program /
Generalitat de Catalunya. GCAT is supported by AcciĂłn de DinamizaciĂłn del ISCIIIMINECO and the Ministry of Health of the Generalitat of Catalunya (ADE 10/00026);
the AgĂšncia de GestiĂł dâAjuts Universitaris i de Recerca (AGAUR) (2017-SGR 529).
Marta Marquié received research funding from ant PI19/00335 Acción Estratégica en
Salud, integrated in the Spanish National RDI Plan and financed by ISCIIISubdirecciĂłn General de EvaluaciĂłn and the Fondo Europeo de Desarrollo Regional
(FEDER-Una manera de hacer Europa").Beatriz Cortes is supported by national
grants PI18/01512. Xavier Farre is supported by VEIS project (001-P-001647) (cofunded by European Regional Development Fund (ERDF), âA way to build Europeâ).
Additional data included in this study was obtained in part by the COVICAT Study
Group (Cohort Covid de Catalunya) supported by IsGlobal and IGTP, EIT COVID-19
Rapid Response activity 73A and SR20-01024 La Caixa Foundation. Antonio JuliĂ
and Sara Marsal were supported by the Spanish Ministry of Economy and
Competitiveness (grant numbers: PSE-010000-2006-6 and IPT-010000-2010-36).
Antonio JuliĂ was also supported the by national grant PI17/00019 from the AcciĂłn
Estratégica en Salud (ISCIII) and the FEDER. The Basque Biobank is a hospitalrelated platform that also involves all Osakidetza health centres, the Basque government's Department of Health and Onkologikoa, is operated by the Basque
Foundation for Health Innovation and Research-BIOEF. Mario CĂĄceres received
Grants BFU2016-77244-R and PID2019-107836RB-I00 funded by the Agencia Estatal
de InvestigaciĂłn (AEI, Spain) and the European Regional Development Fund
(FEDER, EU). Manuel Romero GĂłmez, Javier Ampuero Herrojo, RocĂo Gallego DurĂĄn
and Douglas Maya Miles are supported by the âSpanish Ministry of Economy,
Innovation and Competition, the Instituto de Salud Carlos IIIâ (PI19/01404,
PI16/01842, PI19/00589, PI17/00535 and GLD19/00100), and by the Andalussian
government (Proyectos Estratégicos-Fondos Feder PE-0451-2018, COVID-Premed,
COVID GWAs). The position held by Itziar de Rojas Salarich is funded by grant
FI20/00215, PFIS Contratos Predoctorales de FormaciĂłn en InvestigaciĂłn en Salud.
Enrique CalderĂłn's team is supported by CIBER of Epidemiology and Public Health
(CIBERESP), "Instituto de Salud Carlos III". Jan Cato Holter reports grants from
Research Council of Norway grant no 312780 during the conduct of the study. Dr.
SolligÄrd: reports grants from Research Council of Norway grant no 312769. The
BioMaterialBank Nord is supported by the German Center for Lung Research (DZL),
Airway Research Center North (ARCN). The BioMaterialBank Nord is member of
popgen 2.0 network (P2N). Philipp Koehler has received non-financial scientific grants
from Miltenyi Biotec GmbH, Bergisch Gladbach, Germany, and the Cologne
Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases,
University of Cologne, Cologne, Germany. He is supported by the German Federal
Ministry of Education and Research (BMBF).Oliver A. Cornely is supported by the
German Federal Ministry of Research and Education and is funded by the Deutsche
Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's
Excellence Strategy â CECAD, EXC 2030 â 390661388. The COMRI cohort is funded
by Technical University of Munich, Munich, Germany. Genotyping was performed by
the Genotyping laboratory of Institute for Molecular Medicine Finland FIMM
Technology Centre, University of Helsinki. This work was supported by grants of the
Rolf M. Schwiete Stiftung, the Saarland University, BMBF and The States of Saarland
and Lower Saxony. Kerstin U. Ludwig is supported by the German Research
Foundation (DFG, LU-1944/3-1). Genotyping for the BoSCO study is funded by the
Institute of Human Genetics, University Hospital Bonn. Frank Hanses was supported
by the Bavarian State Ministry for Science and Arts. Part of the genotyping was
supported by a grant to Alfredo Ramirez from the German Federal Ministry of Education and Research (BMBF, grant: 01ED1619A, European Alzheimer DNA
BioBank, EADB) within the context of the EU Joint Programme â Neurodegenerative
Disease Research (JPND). Additional funding was derived from the German Research
Foundation (DFG) grant: RA 1971/6-1 to Alfredo Ramirez. Philip Rosenstiel is
supported by the DFG (CCGA Sequencing Centre and DFG ExC2167 PMI and by SH
state funds for COVID19 research). Florian Tran is supported by the Clinician Scientist
Program of the Deutsche Forschungsgemeinschaft Cluster of Excellence âPrecision
Medicine in Chronic Inflammationâ (EXC2167). Christoph Lange and Jan Heyckendorf
are supported by the German Center for Infection Research (DZIF). Thorsen Brenner,
Marc M Berger, Oliver Witzke und Anke Hinney are supported by the Stiftung
UniversitÀtsmedizin Essen. Marialbert Acosta-Herrera was supported by Juan de la
Cierva Incorporacion program, grant IJC2018-035131-I funded by
MCIN/AEI/10.13039/501100011033. Eva C Schulte is supported by the Deutsche
Forschungsgemeinschaft (DFG; SCHU 2419/2-1).N
Omecamtiv mecarbil in chronic heart failure with reduced ejection fraction, GALACTICâHF: baseline characteristics and comparison with contemporary clinical trials
Aims:
The safety and efficacy of the novel selective cardiac myosin activator, omecamtiv mecarbil, in patients with heart failure with reduced ejection fraction (HFrEF) is tested in the Global Approach to Lowering Adverse Cardiac outcomes Through Improving Contractility in Heart Failure (GALACTICâHF) trial. Here we describe the baseline characteristics of participants in GALACTICâHF and how these compare with other contemporary trials.
Methods and Results:
Adults with established HFrEF, New York Heart Association functional class (NYHA)ââ„âII, EF â€35%, elevated natriuretic peptides and either current hospitalization for HF or history of hospitalization/ emergency department visit for HF within a year were randomized to either placebo or omecamtiv mecarbil (pharmacokineticâguided dosing: 25, 37.5 or 50âmg bid). 8256 patients [male (79%), nonâwhite (22%), mean age 65âyears] were enrolled with a mean EF 27%, ischemic etiology in 54%, NYHA II 53% and III/IV 47%, and median NTâproBNP 1971âpg/mL. HF therapies at baseline were among the most effectively employed in contemporary HF trials. GALACTICâHF randomized patients representative of recent HF registries and trials with substantial numbers of patients also having characteristics understudied in previous trials including more from North America (n = 1386), enrolled as inpatients (n = 2084), systolic blood pressureâ<â100âmmHg (n = 1127), estimated glomerular filtration rate <â30âmL/min/1.73 m2 (n = 528), and treated with sacubitrilâvalsartan at baseline (n = 1594).
Conclusions:
GALACTICâHF enrolled a wellâtreated, highârisk population from both inpatient and outpatient settings, which will provide a definitive evaluation of the efficacy and safety of this novel therapy, as well as informing its potential future implementation