Retrato quinquenal da morbidade hospitalar por esquizofrenia, transtornos esquizotípicos e delirantes em território brasileiro

Schizophrenia is a complex neuropsychiatric disorder of multifactorial origin, affecting work, intellectual functions, interpersonal relationships and self-care. Symptoms are divided into four domains: positive, negative, affective and cognitive, varying between individuals. With a worldwide prevalence of 1% and an incidence of 1.5 per 10,000 people, it is one of the main causes of disability in young people and adults. The objective of this work is to define and evaluate the epidemiological profile of hospital admissions for schizophrenia and related disorders in Brazil. This work is quantitative and retrospective, using data from SIH/SUS from DATASUS. Hospitalizations for schizophrenia and related disorders in Brazil between 2018 and 2023 were analyzed. The variables considered were: region, type of care, age group, sex and color/race. Between 2018 and 2023, there were 415,156 hospitalizations for schizophrenia and related disorders in Brazil. Of these, 88.36% were emergencies and 11.63% were elective. The majority of patients were between 20 and 49 years old (68.88%). Men represented 61.30% of hospitalizations. In terms of color/race, 37.17% declared themselves mixed race and 33.44% white. Thus, the highest frequency of hospitalizations was among male individuals, mixed race, aged between 30 and 39 years old, residing in the Southeast region and treated urgently.A esquizofrenia é um distúrbio neuropsiquiátrico complexo de origem multifatorial, afetando funções laborais, intelectuais, relações interpessoais e autocuidado. Os sintomas se dividem em quatro domínios: positivos, negativos, afetivos e cognitivos, variando entre indivíduos. Com prevalência mundial de 1% e incidência de 1,5 por 10.000 pessoas, é uma das principais causas de incapacidade em jovens e adultos. O objetivo deste trabalho é definir e avaliar o perfil epidemiológico das internações hospitalares por esquizofrenia e transtornos relacionados no Brasil. Este trabalho é quantitativo e retrospectivo, utilizando dados do SIH/SUS do DATASUS. Foram analisadas internações por esquizofrenia e transtornos relacionados no Brasil entre 2018 e 2023. As variáveis consideradas foram: região, tipo de atendimento, faixa etária, sexo e cor/raça. Entre 2018 e 2023, houve 415.156 internações por esquizofrenia e transtornos relacionados ao Brasil. Destas, 88,36% foram urgências e 11,63% eletivas. A maioria dos pacientes tinha entre 20 e 49 anos (68,88%). Os homens representaram 61,30% das internações. Em termos de cor/raça, 37,17% se declararam pardos e 33,44% brancos. Assim, a maior frequência de internações foi entre indivíduos do sexo masculino, de cor parda, com idade entre 30 e 39 anos, residentes na região Sudeste e atendidos em caráter de urgência

Rarity of monodominance in hyperdiverse Amazonian forests.

Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such "monodominant" forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence of monodominance in a massive, basin-wide database of forest-inventory plots from the Amazon Tree Diversity Network (ATDN). Utilizing a simple defining metric of at least half of the trees ≥ 10 cm diameter belonging to one species, we found only a few occurrences of monodominance in Amazonia, and the phenomenon was not significantly linked to previously hypothesized life history traits such wood density, seed mass, ectomycorrhizal associations, or Rhizobium nodulation. In our analysis, coppicing (the formation of sprouts at the base of the tree or on roots) was the only trait significantly linked to monodominance. While at specific locales coppicing or ectomycorrhizal associations may confer a considerable advantage to a tree species and lead to its monodominance, very few species have these traits. Mining of the ATDN dataset suggests that monodominance is quite rare in Amazonia, and may be linked primarily to edaphic factors

Lipidomic Analysis Reveals Serum Alteration of Plasmalogens in Patients Infected With ZIKA Virus

Zika virus (ZIKV) is an arthropod-borne virus (arbovirus) in the Flavivirus genus of the Flaviviridae family. Since the large outbreaks in French Polynesia in 2013–2014 and in Brazil in 2015, ZIKV has been considered a new public health threat. Similar to other related flavivirus, ZIKV is associated with mild and self-limiting symptoms such as rash, pruritus, prostration, headache, arthralgia, myalgia, conjunctivitis, lower back pain and, when present, a short-term low grade fever. In addition, ZIKV has been implicated in neurological complications such as neonatal microcephaly and Guillain–Barré syndrome in adults. Herein, serum lipidomic analysis was used to identify possible alterations in lipid metabolism triggered by ZIKV infection. Patients who presented virus-like symptoms such as fever, arthralgia, headache, exanthema, myalgia and pruritus were selected as the control group. Our study reveals increased levels of several phosphatidylethanolamine (PE) lipid species in the serum of ZIKV patients, the majority of them plasmenyl-phosphatidylethanolamine (pPE) (or plasmalogens) linked to polyunsaturated fatty acids. Constituting up to 20% of total phospholipids in humans, plasmalogens linked to polyunsaturated fatty acids are particularly enriched in neural membranes of the brain. The biosynthesis of plasmalogens requires functional peroxisomes, which are important sites for viral replication, including ZIKV. Thus, increased levels of plasmalogens in serum of ZIKV infected subjects suggest a link between ZIKV life cycle and peroxisomes. Our data provide important insights into specific host cellular lipids that are likely associated with ZIKV replication and may serve as platform for antiviral strategy against ZIKV

Manejo clínico de grande queimado em Unidade de Terapia Intensiva: uma revisão sistemática com metanálise

Atualmente trabalha-se com a estimativa de que ocorrem no mundo todo 265mil mortes por ano em decorrência de acidentes envolvendo eletricidade, calor e produtos químicos, resultando em queimaduras que podem ser graves. No que se refere ao Brasil, ocorrem em média 1 milhão de acidentes por queimadura todos os anos, sendo que deste total apenas 100mil buscam atendimento hospitalar e 2.500 vítimas vem a óbito. O grande queimado caracteriza a vítima que segundo a Regra dos nove ou de Wallace, possui mais de 55 anos e apresenta 10% de sua superfície corporal queimada ou então pessoas de 10 a 55 anos que apresentam 20% ou mais da superficie corporal lesionada. Um cenário desafiador no qual o profissional de enfermagem possui papel fundamental para o tratamento, sendo responsável por intervir e se manter atento a todas as possíveis complicações decorrentes das queimaduras. O tema do manejo de grande queimado em UTI será explorado a partir de uma revisão sistemática com meta análise com o emprego das palavras chave “unidade de terapia intensiva”, “grande queimado” e “assistência de enfermagem” nos bancos de dados PubMed, BVS, Lilacs, Medline e Scielo objetivando acessar artigos publicados entre 2015 e 2022. É de fundamental importância o atendimento primário a vítima de grande queimadura, ao contribuir para uma melhor evolução do quadro do paciente e sua sobrevida. O quadro precisa ser tratado como se fosse um trauma, sendo importante avaliar os agravos para as vias aéreas, sistema circulatório, promover uma avaliação neurológica e extensão da queimadura, levando em consideração que a abordagem ideal depende do agente causador e tempo de exposição

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

Local hydrological conditions influence tree diversity and composition across the Amazon basin

Tree diversity and composition in Amazonia are known to be strongly determined by the water supplied by precipitation. Nevertheless, within the same climatic regime, water availability is modulated by local topography and soil characteristics (hereafter referred to as local hydrological conditions), varying from saturated and poorly drained to well-drained and potentially dry areas. While these conditions may be expected to influence species distribution, the impacts of local hydrological conditions on tree diversity and composition remain poorly understood at the whole Amazon basin scale. Using a dataset of 443 1-ha non-flooded forest plots distributed across the basin, we investigate how local hydrological conditions influence 1) tree alpha diversity, 2) the community-weighted wood density mean (CWM-wd) – a proxy for hydraulic resistance and 3) tree species composition. We find that the effect of local hydrological conditions on tree diversity depends on climate, being more evident in wetter forests, where diversity increases towards locations with well-drained soils. CWM-wd increased towards better drained soils in Southern and Western Amazonia. Tree species composition changed along local soil hydrological gradients in Central-Eastern, Western and Southern Amazonia, and those changes were correlated with changes in the mean wood density of plots. Our results suggest that local hydrological gradients filter species, influencing the diversity and composition of Amazonian forests. Overall, this study shows that the effect of local hydrological conditions is pervasive, extending over wide Amazonian regions, and reinforces the importance of accounting for local topography and hydrology to better understand the likely response and resilience of forests to increased frequency of extreme climate events and rising temperatures

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

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