Guías de práctica clínica para el tratamiento de la enfermedad por Covid-19 en Brasil: revisión sistemática

Introduction: Coronavirus disease (Covid-19) is an infectious disease affecting the respiratory tract, which emerged in China and spread rapidly throughout the world. Objective: To evaluate the methodological quality and transparency of Brazilian clinical practice guidelines for the treatment of coronavirus disease (Covid-19). Materials and Methods: A systematic review was conducted in 2020 on Medline (via PubMed), Embase, Scopus, LILACS, National Guideline Clearinghouse and Guidelines International Network databases, in addition to online searches on the Brazilian Ministry of Health, Brazilian Medical Association, Federal Council of Medicine, Federal Council of Nursing and Federal Council of Physical Therapy websites. The methodological quality and transparency of the guidelines were assessed using the second version of the Appraisal of Guidelines for Research and Evaluation (AGREE) instrument developed by four authors. Results: 33 guidelines were found of which 14 were included in the analysis. There was only one guideline that scored above 60% in all domains. Among the six domains, higher scores were found in the following three domains: scope and objective, stakeholder involvement and clarity of presentation. Discussion: Despite methodological weakness found, the authors were keen to provide clear and concise recommendations through key information and therapeutic options to facilitate decision making. Conclusions: Brazilian clinical practice guidelines were found to be of poor methodological quality, from which only one guideline was recommended and classified as to be of high methodological quality and transparency. How to cite this article: Lanes, Taís Carpes; Ribeiro, Mariane Albuquerque Lima; Oliveira, Daianny Seoni de; Junior, Marcos Gabriel do Nascimento; Garcia, Filipe Reis; Melo, Jéssyca Maria França de Oliveira; Tiguman, Gustavo Magno Baldin. Diretrizes de prática clínica para o tratamento da Covid-19 no Brasil: uma revisão sistemática. Revista Cuidarte. 2021;12(2):e2025 http://dx.doi.org/10.15649/cuidarte.2025   Introdução: A Coronavirus Disease-2019 é uma doença infectocontagiosa que afeta o sistema respiratório, que surgiu na China e logo se espalhou pelo mundo. Objetivo: Avaliar a qualidade metodológica e transparência das Diretrizes de Prática Clínica brasileiras para o tratamento da Coronavirus Disease-2019. Materiais e Métodos: Trata-se de uma revisão sistemática realizada em 2020 nas fontes de dados: MEDLINE (via PubMed), EMBASE, Scopus e Literatura Latino-Americana e do Caribe em Ciências da Saúde, National Guideline Clearinghouse e Guidelines International Network, e sites do Ministério da Saúde do Brasil, Sociedades Médicas Brasileiras, Conselhos de Medicina, Conselho Federal de Enfermagem e Conselho Federal de Fisioterapia. A avaliação da qualidade metodológica e da transparência das diretrizes ocorreu por meio do instrumento Appraisal of Guidelines for Research & Evaluation, versão II, realizada por quatro autores. Resultados: Foram encontradas 33 diretrizes, das quais foram incluídas 14 para análise. Somente uma diretriz apresentou pontuações acima de 60% em todos os domínios. Entre os seis domínios, três apresentaram maiores pontuações: Escopo e finalidade, Envolvimento das partes interessadas e Clareza da apresentação.  Discussão: Apesar da fragilidade metodológica, os autores se preocuparam em apresentar as recomendações de forma clara e concisa, através de informações-chave e opções terapêuticas que facilitam a tomada de decisão. Conclusão: As diretrizes brasileiras apresentaram baixa qualidade metodológica, em que somente uma diretriz foi recomendada e classificada com alta qualidade e transparência metodológica.   Como citar este artigo: Lanes, Taís Carpes; Ribeiro, Mariane Albuquerque Lima; Oliveira, Daianny Seoni de; Junior, Marcos Gabriel do Nascimento; Garcia, Filipe Reis; Melo, Jéssyca Maria França de Oliveira; Tiguman, Gustavo Magno Baldin. Diretrizes de prática clínica para o tratamento da Covid-19 no Brasil: uma revisão sistemática. Revista Cuidarte. 2021;12(2):e2025 http://dx.doi.org/10.15649/cuidarte.2025    Introducción: La enfermedad por coronavirus (Covid-19) es una patología infecciosa que afecta al sistema respiratorio, la cual se originó en China y se extendió rápidamente por todo el mundo. Objetivo: Evaluar la calidad metodológica y la transparencia de las guías de práctica clínica brasileñas para el tratamiento de la enfermedad por coronavirus (Covid-19). Materiales y métodos: Se realizó una revisión sistemática en 2020 en las bases de datos Medline (vía PubMed), Embase, Scopus, LILACS, National Guideline Clearinghouse y Guidelines International Network, además de consultas en los sitios web del Ministerio de Salud de Brasil, Asociación Médicas Brasileña, Consejo Federal de Medicina, Consejo Federal de Enfermería y Consejo Federal de Fisioterapia. La evaluación de la calidad metodológica y la transparencia de las guías se realizó con el instrumento Appraisal of Guidelines for Research and Evaluation (AGREE), segunda versión realizada por cuatro autores. Resultados: Se encontraron 33 guías, de las que se incluyeron 14 en el análisis. Hubo una sola guía que obtuvo una puntuación superior al 60% en todos los dominios. Entre los seis dominios, se presentaron puntuaciones más altas en los siguientes tres dominios: alcance y objetivo, participación de las partes interesadas y claridad de la presentación. Discusión: A pesar de la fragilidad metodológica, los autores se interesaron por presentar las recomendaciones de forma clara y concisa a través de información clave y opciones terapéuticas que faciliten la toma de decisiones. Conclusión: Las guías de práctica clínica brasileñas mostraron tener una baja calidad metodológica, de las que solamente una guía fue recomendada y clasificada como de alta calidad y transparencia metodológica. Como citar este artículo: Lanes, Taís Carpes; Ribeiro, Mariane Albuquerque Lima; Oliveira, Daianny Seoni de; Junior, Marcos Gabriel do Nascimento; Garcia, Filipe Reis; Melo, Jéssyca Maria França de Oliveira; Tiguman, Gustavo Magno Baldin. Diretrizes de prática clínica para o tratamento da Covid-19 no Brasil: uma revisão sistemática. Revista Cuidarte. 2021;12(2):e2025 http://dx.doi.org/10.15649/cuidarte.2025  &nbsp

Estimating the global conservation status of more than 15,000 Amazonian tree species

Estimates of extinction risk for Amazonian plant and animal species are rare and not often incorporated into land-use policy and conservation planning. We overlay spatial distribution models with historical and projected deforestation to show that at least 36% and up to 57% of all Amazonian tree species are likely to qualify as globally threatened under International Union for Conservation of Nature (IUCN) Red List criteria. If confirmed, these results would increase the number of threatened plant species on Earth by 22%. We show that the trends observed in Amazonia apply to trees throughout the tropics, and we predict thatmost of the world’s >40,000 tropical tree species now qualify as globally threatened. A gap analysis suggests that existing Amazonian protected areas and indigenous territories will protect viable populations of most threatened species if these areas suffer no further degradation, highlighting the key roles that protected areas, indigenous peoples, and improved governance can play in preventing large-scale extinctions in the tropics in this century

Geographic patterns of tree dispersal modes in Amazonia and their ecological correlates

Aim: To investigate the geographic patterns and ecological correlates in the geographic distribution of the most common tree dispersal modes in Amazonia (endozoochory, synzoochory, anemochory and hydrochory). We examined if the proportional abundance of these dispersal modes could be explained by the availability of dispersal agents (disperser-availability hypothesis) and/or the availability of resources for constructing zoochorous fruits (resource-availability hypothesis). Time period: Tree-inventory plots established between 1934 and 2019. Major taxa studied: Trees with a diameter at breast height (DBH) ≥ 9.55 cm. Location: Amazonia, here defined as the lowland rain forests of the Amazon River basin and the Guiana Shield. Methods: We assigned dispersal modes to a total of 5433 species and morphospecies within 1877 tree-inventory plots across terra-firme, seasonally flooded, and permanently flooded forests. We investigated geographic patterns in the proportional abundance of dispersal modes. We performed an abundance-weighted mean pairwise distance (MPD) test and fit generalized linear models (GLMs) to explain the geographic distribution of dispersal modes. Results: Anemochory was significantly, positively associated with mean annual wind speed, and hydrochory was significantly higher in flooded forests. Dispersal modes did not consistently show significant associations with the availability of resources for constructing zoochorous fruits. A lower dissimilarity in dispersal modes, resulting from a higher dominance of endozoochory, occurred in terra-firme forests (excluding podzols) compared to flooded forests. Main conclusions: The disperser-availability hypothesis was well supported for abiotic dispersal modes (anemochory and hydrochory). The availability of resources for constructing zoochorous fruits seems an unlikely explanation for the distribution of dispersal modes in Amazonia. The association between frugivores and the proportional abundance of zoochory requires further research, as tree recruitment not only depends on dispersal vectors but also on conditions that favour or limit seedling recruitment across forest types

Geography and ecology shape the phylogenetic composition of Amazonian tree communities

AimAmazonia hosts more tree species from numerous evolutionary lineages, both young and ancient, than any other biogeographic region. Previous studies have shown that tree lineages colonized multiple edaphic environments and dispersed widely across Amazonia, leading to a hypothesis, which we test, that lineages should not be strongly associated with either geographic regions or edaphic forest types.LocationAmazonia.TaxonAngiosperms (Magnoliids; Monocots; Eudicots).MethodsData for the abundance of 5082 tree species in 1989 plots were combined with a mega-phylogeny. We applied evolutionary ordination to assess how phylogenetic composition varies across Amazonia. We used variation partitioning and Moran's eigenvector maps (MEM) to test and quantify the separate and joint contributions of spatial and environmental variables to explain the phylogenetic composition of plots. We tested the indicator value of lineages for geographic regions and edaphic forest types and mapped associations onto the phylogeny.ResultsIn the terra firme and várzea forest types, the phylogenetic composition varies by geographic region, but the igapó and white-sand forest types retain a unique evolutionary signature regardless of region. Overall, we find that soil chemistry, climate and topography explain 24% of the variation in phylogenetic composition, with 79% of that variation being spatially structured (R2 = 19% overall for combined spatial/environmental effects). The phylogenetic composition also shows substantial spatial patterns not related to the environmental variables we quantified (R2 = 28%). A greater number of lineages were significant indicators of geographic regions than forest types.Main ConclusionNumerous tree lineages, including some ancient ones (>66 Ma), show strong associations with geographic regions and edaphic forest types of Amazonia. This shows that specialization in specific edaphic environments has played a long-standing role in the evolutionary assembly of Amazonian forests. Furthermore, many lineages, even those that have dispersed across Amazonia, dominate within a specific region, likely because of phylogenetically conserved niches for environmental conditions that are prevalent within regions

Geography and ecology shape the phylogenetic composition of Amazonian tree communities

Aim: Amazonia hosts more tree species from numerous evolutionary lineages, both young and ancient, than any other biogeographic region. Previous studies have shown that tree lineages colonized multiple edaphic environments and dispersed widely across Amazonia, leading to a hypothesis, which we test, that lineages should not be strongly associated with either geographic regions or edaphic forest types. Location: Amazonia. Taxon: Angiosperms (Magnoliids; Monocots; Eudicots). Methods: Data for the abundance of 5082 tree species in 1989 plots were combined with a mega-phylogeny. We applied evolutionary ordination to assess how phylogenetic composition varies across Amazonia. We used variation partitioning and Moran\u27s eigenvector maps (MEM) to test and quantify the separate and joint contributions of spatial and environmental variables to explain the phylogenetic composition of plots. We tested the indicator value of lineages for geographic regions and edaphic forest types and mapped associations onto the phylogeny. Results: In the terra firme and várzea forest types, the phylogenetic composition varies by geographic region, but the igapó and white-sand forest types retain a unique evolutionary signature regardless of region. Overall, we find that soil chemistry, climate and topography explain 24% of the variation in phylogenetic composition, with 79% of that variation being spatially structured (R$^{2}$ = 19% overall for combined spatial/environmental effects). The phylogenetic composition also shows substantial spatial patterns not related to the environmental variables we quantified (R$^{2}$ = 28%). A greater number of lineages were significant indicators of geographic regions than forest types. Main Conclusion: Numerous tree lineages, including some ancient ones (>66 Ma), show strong associations with geographic regions and edaphic forest types of Amazonia. This shows that specialization in specific edaphic environments has played a long-standing role in the evolutionary assembly of Amazonian forests. Furthermore, many lineages, even those that have dispersed across Amazonia, dominate within a specific region, likely because of phylogenetically conserved niches for environmental conditions that are prevalent within regions

Mapping density, diversity and species-richness of the Amazon tree flora

Using 2.046 botanically-inventoried tree plots across the largest tropical forest on Earth, we mapped tree species-diversity and tree species-richness at 0.1-degree resolution, and investigated drivers for diversity and richness. Using only location, stratified by forest type, as predictor, our spatial model, to the best of our knowledge, provides the most accurate map of tree diversity in Amazonia to date, explaining approximately 70% of the tree diversity and species-richness. Large soil-forest combinations determine a significant percentage of the variation in tree species-richness and tree alpha-diversity in Amazonian forest-plots. We suggest that the size and fragmentation of these systems drive their large-scale diversity patterns and hence local diversity. A model not using location but cumulative water deficit, tree density, and temperature seasonality explains 47% of the tree species-richness in the terra-firme forest in Amazonia. Over large areas across Amazonia, residuals of this relationship are small and poorly spatially structured, suggesting that much of the residual variation may be local. The Guyana Shield area has consistently negative residuals, showing that this area has lower tree species-richness than expected by our models. We provide extensive plot meta-data, including tree density, tree alpha-diversity and tree species-richness results and gridded maps at 0.1-degree resolution

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio