68 research outputs found

    Características anatômicas da cateterização da uretra e bexiga de camundongos e ratos fêmeas. Instrumento essencial na pesquisa pré clínica

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    To present fundamental anatomical aspects and technical skills necessary to urethra and urinary bladder catheterization in female mice and rats. Urethral and bladder catheterization has been widely utilized for carcinogenesis and cancer research and still remains very useful in several applications: from toxicological purposes as well as inflammatory and infectious conditions to functional aspects as bladder dynamics and vesicoureteral reflux, among many others. Animal models are in the center of translational research and those involving rodents are the most important nowadays due to several advantages including human reproducibility, easy handling and low cost. Although technical and anatomical pearls for rodent urethral and bladder access are presented as tackles to the advancement of lower urinary tract preclinical investigation in a broaden sight, restriction to female animals hampers the male microenvironment, demanding future advances262Apresentar aspectos anatômicos fundamentais e habilidades técnicas necessárias para cateterismo da uretra e bexiga em ratos e camundongos fêmeas. Cateterismo vesical tem sido amplamente utilizado na pesquisa do câncer e carcinogênese, além de várias outras aplicações, desde fins toxicológicos, condições inflamatórias e infecciosas até aspectos funcionais como a dinâmica vesical e refluxo vesico-ureteral, entre muitos outros. Os modelos animais estão no centro da investigação de translação e os roedores são os mais importantes devido a várias vantagens, incluindo reprodutibilidade humana, o fácil manuseio e baixo custo. Apesar de permitir o desenvolvimento da investigação pré-clínica do trato urinário inferior, o modelo se restringe aos animais do sexo feminino, de modo que avanços futuros são necessário

    Anatomical Features Of The Urethra And Urinary Bladder Catheterization In Female Mice And Rats. An Essential Translational Tool.

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    To present fundamental anatomical aspects and technical skills necessary to urethra and urinary bladder catheterization in female mice and rats. Urethral and bladder catheterization has been widely utilized for carcinogenesis and cancer research and still remains very useful in several applications: from toxicological purposes as well as inflammatory and infectious conditions to functional aspects as bladder dynamics and vesicoureteral reflux, among many others. Animal models are in the center of translational research and those involving rodents are the most important nowadays due to several advantages including human reproducibility, easy handling and low cost. Although technical and anatomical pearls for rodent urethral and bladder access are presented as tackles to the advancement of lower urinary tract preclinical investigation in a broaden sight, restriction to female animals hampers the male microenvironment, demanding future advances.26 Suppl 2106-1

    Urinary mRNA-based biomarkers for non-muscle-invasive bladder cancer: a mini-review

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    Bladder cancer (BC) is the second most common type of cancer of the urinary system. Approximately 75% of the cases are non-muscle invasive bladder cancer (NMIBC), which has a high recurrence and progression rate. Current diagnosis and surveillance methods present challenges, including risks to the patients. For this reason, urinary biomarkers have been proposed as alternatives to the methods. The goal of this mini-review is to describe urinary mRNA-based biomarkers available in current literature for NMIBC tumors, using the PubMed database. The search included the following keywords: “biomarkers” AND “bladder cancer” AND “urine” and “RNA” and “non-muscle”. The search yielded 11 original researchers utilizing mRNA-based urinary biomarkers. Although there is a wide variety of biomarkers described, the cohorts of the studies were not exclusively NMIBC, which is the subtype of BC that would mostly benefit from the introduction of a good follow-up biomarker, highlighting the need for randomized interventional trials for NMIBC

    Evaluation of the Ebserh network contingency plan for coping with the pandemic Covid19, 2020

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    O Plano de Contingência do Hospital Universitário de Brasília para o enfrentamento da COVID-19 (PC COVID-19/HUB-UnB) estabeleceu as medidas para a Emergência de Saúde Pública de Importância Internacional (ESPII) decorrente da infecção humana pelo novo Coronavírus (Covid-19), conforme as orientações das autoridades sanitária do Brasil, do Governo do Distrito Federal (GDF) e normas da EBSERH. Diante desse contexto emergencial, este projeto se propõe a avaliar o grau de implantação do PC COVID-19 HUB-UnB e fornecer subsídios à gestão local para avaliação de desempenho do referido plano. Trata-se de um estudo de caso, baseado em metodologia qualitativa e quantitativa, observacional, realizado no Hospital Universitário de Brasília. Os procedimentos propostos foram baseados na abordagem metodológica da pesquisa avaliativa de “análise de implantação”

    Pervasive gaps in Amazonian ecological research

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    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
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