Hepcidin is a key hormone that induces the degradation of ferroportin (FPN), a protein that exports iron from reticuloendothelial macrophages and enterocytes. The aim of the present study was to experimentally evaluate if the obesity induced by a high-fat diet (HFD) modifies the expression of FPN in macrophages and enterocytes, thus altering the iron bioavailability. In order to directly examine changes associated with iron metabolism in vivo, C57BL/6J mice were fed either a control or a HFD. Serum leptin levels were evaluated. The hepcidin, divalent metal transporter-1 (DMT1), FPN and ferritin genes were analyzed by real-time polymerase chain reaction. The amount of iron present in both the liver and spleen was determined by flame atomic absorption spectrometry. Ferroportin localization within reticuloendothelial macrophages was observed by immunofluorescence microscopy. Obese animals were found to exhibit increased hepcidin gene expression, while iron accumulated in the spleen and liver. They also exhibited changes in the sublocation of splenic cellular FPN and a reduction in the FPN expression in the liver and the spleen, while no changes were observed in enterocytes. Possible explanations for the increased hepcidin expression observed in HFD animals may include: increased leptin levels, the liver iron accumulation or endoplasmic reticulum (ER) stress. Together, the results indicated that obesity promotes changes in iron bioavailability, since it altered the iron recycling function.
The shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiversity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxonomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world's known plant species than any other country. Despite that, Flora Brasiliensis, concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world's most biodiverse countries. We further identify collection gaps and summarize future goals that extend beyond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still unequally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the country. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora.
Background: The therapeutic itinerary is not limited to the identification and availability of health services offered, but relates to the different individual searches and sociocultural and economic possibilities of each patient. In this study, we discuss the therapeutic itinerary of transsexual people seeking healthcare, from the user’s perspective. Objective: The aim of this study was to discuss the therapeutic itinerary of transsexual people seeking healthcare, from the user’s perspective. Design and participants: Individual interviews were performed with 10 transsexuals at the Trans Space of a University Hospital of Pernambuco, using the Universal Declaration of Human Rights as the theoretical reference and the Bardin’s thematic content analysis as the reference methodological framework. Ethical considerations: This study was approved by the Human Research Ethics Committee at the Federal University of Pernambuco under protocol no. 91284218.5.0000.5208. Findings: The comprehensive care for transsexual people was evidenced through four categories analyzed: low demand of transsexuals in health services; use of social name in health services; care permeated by prejudiced and discriminatory attitudes; and health system and professionals who are not able to meet transgender health issues. Discussion: Transsexual people are stigmatized and experience prejudice in their daily health, in a way they do not enjoy fundamental rights, as if they had fewer rights, or infringe the principle of universality of access to health. Thus, for effective and comprehensive care, the health team must keep up to date on the public policies existing in the healthcare of transsexual people and reconstruct what they understand by gender. Conclusion: Knowledge about the therapeutic itinerary of transgender people may support evaluation processes of health service networks to ensure the access to and reorganization of these services. Understanding this dynamic allows fostering discussions about the structure of health services at all care levels for the care of this population.
Objetivo: Avaliar o impacto da dismenorreia nas adolescentes e identificar o nível de conhecimento das mesmas sobre o assunto. Métodos: Estudo descritivo, exploratório, transversal com abordagem quantitativa, conduzida em uma escola Estadual de Referência em Ensino Médio de Pernambuco, com uma amostra de 50 estudantes, realizado no período de 30 dias. Resultados: Observou-se que a maioria das adolescentes (78%) não possuíam conhecimento em relação aos distúrbios menstruais, o que demostra que ainda existe a necessidade de esclarecimentos por parte das adolescentes, sobre o ciclo menstrual e seus possíveis distúrbios. Quanto ao absenteísmo escolar, 56% afirmaram já ter faltado aula devido à dor no período menstrual, o que evidenciou o efeito da dismenorreia na vida das adolescentes. Conclusão: Neste sentido, percebe-se que existe a necessidade em valorizar as queixas com relação ao que se refere à menstruação, uma vez que estas podem impactar diretamente na saúde, na qualidade de vida e no desempenho escolar, assim como uma maior efetivação do Programa de Saúde na Escola.
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