CARCINOMA BASOCELULAR EM SUPERCÍLIO RECONSTRUÇÃO COM RETALHO BILATERAL: UM RELATO DE CASO

O carcinoma basocelular (CBC) é a neoplasia maligna mais comum em humanos e sua incidência vem aumentando nas últimas décadas. Apesar das baixas taxas de mortalidade e de rara ocorrência de metástases, o tumor pode apresentar comportamento invasivo local e recidivas após o tratamento, provocando importante morbidade. Exposição à radiação ultravioleta representa o principal fator de risco ambiental associado a sua gênese, sendo portanto, um fator prevenível. O presente trabalho visa relatar o caso de uma paciente diagnosticada com carcinoma basocelular do tipo infiltrativo em supercílio, que foi submetida à cirurgia de retirada da lesão utilizando-se a técnica de reconstrução com retalho bilateral. Tal procedimento foi acompanhado pelos estudantes autores do trabalho, que aprofundaram-se no tema e realizaram uma extensa revisão relacionada ao mesmo. Foi também explorada a dificuldade de reconstrução do local acometido, que representa um desafio ao cirurgião, tanto pelo baixo número de opções corretivas quanto pela região esteticamente crucial ao paciente. Concluiu-se que além de um diagnósico precoce, é fundamental que o tratamento adequado seja implementado, e posteriormente, um acompanhamento ambulatorial rigoroso deve ser realizado

Síndrome de Stevens-Johnson: uma doença dermatológica ou uma farmacodermia? / Stevens-Johnson Syndrome: a dermatological disease or a pharmacodermia?

INTRODUÇÃO: A síndrome de Stevens-Johnson refere-se à uma reação mucocutânea aguda caracterizada por necrose e descolamento extenso da epiderme. É uma síndrome rara e com etiologia desconhecida, relacionada sensibilidade a medicações ou a infecções por vírus como herpes simples e micoplasma. O quadro clínico se inicia com um exantema prodrômico morbiliforme disseminado com acometimento centrífugo envolvendo mucosas e evolui com necrose epidérmica e eritema e erupções dolorosas em mucosas. O diagnóstico é clínico e o tratamento é controverso, envolvendo corticosteroides, clorexidina oral e imunomoduladores. OBJETIVO: Entender a Síndrome de Steve Johnson relacionado com seus sintomas dermatológicos e suas etiologias farmacológicas. METODOLOGIA: trata-se de uma revisão de literatura integrativa com dados coletados nas bases Scielo e Pubmed com 13 artigos coletados. DISCUSSÃO E RESULTADOS:. Foram descritos diversos fatores de risco que estão relacionados com a gravidade da apresentação da doença bem como a extensão da superfície corporal acometida. É importante ressaltar ainda as limitações das opções terapêuticas e a importância da assertividade das indicações para que não haja uma piora do quadro. CONCLUSÃO: a Síndrome de Steven Johnson é uma afecção rara, com potencial letalidade e apresenta como sintomas principais a descamação dérmica além de ulceração na mucos. Pode ser desencadeada principalmente pelo uso de medicações e em pessoas com fatores de risco. Poucos estudos foram realizados a respeito da síndrome e seu tratamento.

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

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 understanding 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,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 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 underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities 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 organism 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 neglected 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 lost

Núcleos de Ensino da Unesp: artigos 2008

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics

Xenarthrans—anteaters, sloths, and armadillos—have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, 10 anteaters, and 6 sloths. Our data set includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the southern United States, Mexico, and Caribbean countries at the northern portion of the Neotropics, to the austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n = 5,941), and Cyclopes sp. have the fewest (n = 240). The armadillo species with the most data is Dasypus novemcinctus (n = 11,588), and the fewest data are recorded for Calyptophractus retusus (n = 33). With regard to sloth species, Bradypus variegatus has the most records (n = 962), and Bradypus pygmaeus has the fewest (n = 12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other data sets of Neotropical Series that will become available very soon (i.e., Neotropical Carnivores, Neotropical Invasive Mammals, and Neotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure, habitat loss, fragmentation effects, species invasion, and climate change effects will be possible with the Neotropical Xenarthrans data set. Please cite this data paper when using its data in publications. We also request that researchers and teachers inform us of how they are using these data

Characterisation of microbial attack on archaeological bone

As part of an EU funded project to investigate the factors influencing bone preservation in the archaeological record, more than 250 bones from 41 archaeological sites in five countries spanning four climatic regions were studied for diagenetic alteration. Sites were selected to cover a range of environmental conditions and archaeological contexts. Microscopic and physical (mercury intrusion porosimetry) analyses of these bones revealed that the majority (68%) had suffered microbial attack. Furthermore, significant differences were found between animal and human bone in both the state of preservation and the type of microbial attack present. These differences in preservation might result from differences in early taphonomy of the bones. © 2003 Elsevier Science Ltd. All rights reserved