José Veríssimo, um clássico brasileiro: a antologia escolar como canonização literária e formação de leitores

Analisa-se neste artigo a antologia escolar “José Veríssimo – Crítica”, seleção e estudo crítico de Olívio Montenegro, editado pela Editora Agir, na coleção “Nossos Clássicos” (1958), como uma forma de recepção e seleção dos estudos literários da extensa obra histórica, educacional, etnográfica e literária de José Veríssimo. Argumenta-se que esta antologia escolar registrou o processo de canonização literária de José Veríssimo como crítico literário e, a partir disso, produziu o processo de formação de leitores ao aderir uma chave de leitura sobre a obra de José Veríssimo: a transformação em clássico brasileiro na consagração do crítico literário – contribuindo para um silêncio bibliográfico sobre os seus estudos dedicados a sociedade e a cultura amazônica oitocentista

Molecular and Biomechanical Clues From Cardiac Tissue Decellularized Extracellular Matrix Drive Stromal Cell Plasticity

Decellularized-organ-derived extracellular matrix (dECM) has been used for many years in tissue engineering and regenerative medicine. The manufacturing of hydrogels from dECM allows to make use of the pro-regenerative properties of the ECM and, simultaneously, to shape the material in any necessary way. The objective of the present project was to investigate differences between cardiovascular tissues (left ventricle, mitral valve, and aorta) with respect to generating dECM hydrogels and their interaction with cells in 2D and 3D. The left ventricle, mitral valve, and aorta of porcine hearts were decellularized using a series of detergent treatments (SDS, Triton-X 100 and deoxycholate). Mass spectrometry-based proteomics yielded the ECM proteins composition of the dECM. The dECM was digested with pepsin and resuspended in PBS (pH 7.4). Upon warming to 37°C, the suspension turns into a gel. Hydrogel stiffness was determined for samples with a dECM concentration of 20 mg/mL. Adipose tissue-derived stromal cells (ASC) and a combination of ASC with human pulmonary microvascular endothelial cells (HPMVEC) were cultured, respectively, on and in hydrogels to analyze cellular plasticity in 2D and vascular network formation in 3D. Differentiation of ASC was induced with 10 ng/mL of TGF-β1 and SM22α used as differentiation marker. 3D vascular network formation was evaluated with confocal microscopy after immunofluorescent staining of PECAM-1. In dECM, the most abundant protein was collagen VI for the left ventricle and mitral valve and elastin for the aorta. The stiffness of the hydrogel derived from the aorta (6,998 ± 895 Pa) was significantly higher than those derived from the left ventricle (3,384 ± 698 Pa) and the mitral valve (3,233 ± 323 Pa) (One-way ANOVA, p = 0.0008). Aorta-derived dECM hydrogel drove non-induced (without TGF-β1) differentiation, while hydrogels derived from the left ventricle and mitral valve inhibited TGF-β1-induced differentiation. All hydrogels supported vascular network formation within 7 days of culture, but ventricular dECM hydrogel demonstrated more robust vascular networks, with thicker and longer vascular structures. All the three main cardiovascular tissues, myocardium, valves, and large arteries, could be used to fabricate hydrogels from dECM, and these showed an origin-dependent influence on ASC differentiation and vascular network formation

Is the obesity paradox in outpatients with heart failure reduced ejection fraction real?

BackgroundThe obesity occurrence has achieved epidemic levels worldwide and several studies indicate a paradoxical similarity among obesity and the prognosis in heart failure (HF). The primary objective was to understand the association between body mass index (BMI) and heart failure with reduced ejection fraction (HFREF) of ischemic etiology in outpatients, using mortality as a parameter. The secondary objectives were to determine the differences in HF functional class, pharmacological therapy and evaluate the prognostic value of MAGGIC Score in this population.MethodsWe analyzed 1,556 medical records from the HF outpatient clinic of a quaternary hospital and 242 were selected according to the criteria. Most were male, average age 62.6 (56–70), BMI 18.5–24.9 = 35.1%, 25–29.9 = 37.2%, 30–34.9 = 17.8%, 35–39.9 = 7%; BMI <18.5 and >40 groups were eliminated from the central analyzes because of scarce testing.ResultsBMI 30–34.9 and BMI 18.5–24.9 had the best prognosis, BMI 25–29.9 had an average performance, and BMI –39.9 group provided the worst outcome (p = 0.123). In the subcategory analysis, BMI 30–34.9 group had a better prognosis compared to the BMI 35–39.9 group (p = 0.033). In the multivariate analysis The MAGGIC score was not able to foretell mortality in this population according to BMI.ConclusionIn not hospitalized patients with HFREF of ischemic etiology, obesity was not a protective factor

In vitro maturation of agoutis (Dasyprocta prymnolopha) oocytes followed by in vitro fertilization and parthenogenetic activation

O objetivo foi avaliar protocolos de maturação in vitro (MIV) para oócitos de cutias, seguida de fertilização in vitro (FIV) e ativação partenogenética (AP). Os oócitos imaturos (CCOs) foram obtidos por fatiamento do ovário, após OSH, e submetidos a três grupos: MAT - 16 (16 horas de maturação), MAT - 20 (20 horas de maturação) e MAT - 24 (24 horas de maturação), em incubadora de cultivo a 38,8°C, com atmosfera de 5% de CO2 e 95% de umidade relativa. A maturação foi analisada pela presença do primeiro corpúsculo polar. Em seguida, os CCOs maduros foram submetidos à FIV, com período de coincubação dos CCOs e dos espermatozoides de 15h, a 38,8ºC e 5% de CO2, e AP com ionomicina. Os grupos de MIV foram analisados utilizando-se o teste qui-quadrado e, nos experimentos de FIV e AP, foram analisadas a taxa de clivagem e a proporção de desenvolvimento embrionário. A análise estatística foi realizada utilizando-se o programa SAS. Houve diferença significativa entre os grupos de maturação, tendo os grupos MAT - 20 e MAT - 24 apresentado maior porcentagem de oócitos maturados in vitro. As taxas de clivagem e de desenvolvimento embrionário foram de 8,6% e 2,9%, respectivamente, na FIV, e de 63,6% e 15,1%, na AP. Entretanto, nos dois casos, o embrião não passou do estágio de mórula.The objective was to evaluate IVM protocols for agouti oocytes, followed by in vitro fertilization (IVF) and parthenogenetic activation (PA). The immature oocytes (CCOs) were obtained by slicing the ovary after OSH and submitted to three groups: MAT - 16 (16 hours maturation), MAT - 20 (20 hours maturation) and MAT – (24 hours maturation), in a culture incubator at 38.8°C, with an atmosphere of 5% CO2 and 95% relative humidity. The maturation was analyzed by the presence of the first polar corpuscle. Then, mature CCOs were submitted to IVF, with co-incubation period of CCOs and spermatozoa from 15h to 38.8°C and 5% of CO2, and PA with inomycin. The IVM groups were analyzed using the chi-square test and in the FIV and PA experiment the rate of cleavage and the rate of embryonic development were analyzed. Statistical analysis was performed using the SAS program. There was a significant difference between the maturation groups, and the MAT - 20 and MAT - 24 groups showed a higher percentage of matured oocytes in vitro. The rates of cleavage and embryonic development were 8.6% and 2.9%, respectively in FIV and 63.6% and 15.1% in PA. However, in both cases the embryo did not pass beyond the morula stage

Transcriptional profiles of the human pathogenic fungus paracoccidioides brasiliensis in mycelium and yeast cells

This work was supported by MCT, CNPq, CAPES, FUB, UFG, and FUNDECT-MS. PbGenome Network: Alda Maria T. Ferreira, Alessandra Dantas, Alessandra J. Baptista, Alexandre M. Bailão, Ana Lídia Bonato, André C. Amaral, Bruno S. Daher, Camila M. Silva, Christiane S. Costa, Clayton L. Borges, Cléber O. Soares, Cristina M. Junta, Daniel A. S. Anjos, Edans F. O. Sandes, Eduardo A. Donadi, Elza T. Sakamoto-Hojo, Flábio R. Araújo, Flávia C. Albuquerque, Gina C. Oliveira, João Ricardo M. Almeida, Juliana C. Oliveira, Kláudia G. Jorge, Larissa Fernandes, Lorena S. Derengowski, Luís Artur M. Bataus, Marcus A. M. Araújo, Marcus K. Inoue, Marlene T. De-Souza, Mauro F. Almeida, Nádia S. Parachin, Nadya S. Castro, Odair P. Martins, Patrícia L. N. Costa, Paula Sandrin-Garcia, Renata B. A. Soares, Stephano S. Mello, and Viviane C. B. ReisParacoccidioides brasiliensis is the causative agent of paracoccidioidomycosis, a disease that affects 10 million individuals in Latin America. This report depicts the results of the analysis of 6,022 assembled groups from mycelium and yeast phase expressed sequence tags, covering about 80% of the estimated genome of this dimorphic, thermo-regulated fungus. The data provide a comprehensive view of the fungal metabolism, including overexpressed transcripts, stage-specific genes, and also those that are up- or down-regulated as assessed by in silico electronic subtraction and cDNA microarrays. Also, a significant differential expression pattern in mycelium and yeast cells was detected, which was confirmed by Northern blot analysis, providing insights into differential metabolic adaptations. The overall transcriptome analysis provided information about sequences related to the cell cycle, stress response, drug resistance, and signal transduction pathways of the pathogen. Novel P. brasiliensis genes have been identified, probably corresponding to proteins that should be addressed as virulence factor candidates and potential new drug targets

Eu quero saber: 60 perguntas e respostas sobre a COVID-19

COVID-19 is caused by the new coronavirus SARS-CoV-2 and the first cases were reported in December 2019 in Wuhan Province in China. Subsequently, the virus quickly reached Europe, the United States and landed in Brazil. Even after four months of the first confirmed case in the city of São Paulo (March 4, 2020), many doubts remain or arise as researchers learn more about COVID-19 and the rate at which the disease progresses. Interestingly, the concern about seeking to know more about the new disease and about the measures to combat it began to appear in the speeches and questions of patients and visitors of our Laboratory of the Research Group on Cardiorespiratory Evaluation and Rehabilitation (GECARE) of the Department of Physiotherapy at the Federal University of Rio de Janeiro (UFRJ). This allowed us to exercise a fundamental approach in the context of health care, to inform from listening to patients' doubts. Break the logic of imposing information. In this sense, GECARE's scientific initiation, master's and doctoral students began to catalog doubts about COVID-19. This happened based on groups of messages maintained with patients during the period of social distance for guidance and monitoring of health conditions. Then, we set up a multiprofessional health team to answer the questions and compiled this 3rd E-book on COVID-19 from our group. We believe that our patients' doubts and the quick question and answer format will allow people in general to know more about the context of COVID-19.A COVID-19 é provocada pelo novo coronavírus SARS-CoV-2 e os primeiros casos foram notificados em dezembro de 2019 na Província de Wuhan na China. Na sequência, rapidamente o vírus alcançou a Europa, Estados Unidos e desembarcou no Brasil. Mesmo depois de quatro meses do primeiro caso confirmado na cidade de São Paulo (04 de março de 2020), muitas dúvidas permanecem ou surgem à medida que os pesquisadores conhecem mais sobre a COVID-19 e na proporção que a doença avança. Interessantemente, a inquietação pela busca em saber mais sobre a nova doença e sobre as medidas para combatê-la começou a surgir nas falas e perguntas dos pacientes e frequentadores do nosso Laboratório do Grupo de Pesquisa em Avaliação e Reabilitação Cardiorrespiratória (GECARE) do Departamento de Fisioterapia da Universidade Federal do Rio de Janeiro (UFRJ). Isso nos permitiu exercitar uma abordagem fundamental no contexto do cuidado em saúde, informar a partir da escuta das dúvidas dos pacientes. Quebrar a lógica da imposição da informação. Neste sentido, os alunos de iniciação científica, mestrado e doutorado do GECARE começaram a catalogar as dúvidas sobre a COVID-19. Isso aconteceu a partir dos grupos de mensagens mantidos com os pacientes durante o período de distanciamento social para orientações e acompanhamento das condições de saúde. Na sequência, montamos um time multiprofissional de saúde para responder as questões e compilamos neste 3º E-book sobre COVID-19 do nosso grupo. Acreditamos que as dúvidas dos nossos pacientes e o formato rápido de perguntas e respostas permitirão que as pessoas em geral possam conhecer mais sobre o contexto da COVID-19

A list of land plants of Parque Nacional do Caparaó, Brazil, highlights the presence of sampling gaps within this protected area

Brazilian protected areas are essential for plant conservation in the Atlantic Forest domain, one of the 36 global biodiversity hotspots. A major challenge for improving conservation actions is to know the plant richness, protected by these areas. Online databases offer an accessible way to build plant species lists and to provide relevant information about biodiversity. A list of land plants of “Parque Nacional do Caparaó” (PNC) was previously built using online databases and published on the website "Catálogo de Plantas das Unidades de Conservação do Brasil." Here, we provide and discuss additional information about plant species richness, endemism and conservation in the PNC that could not be included in the List. We documented 1,791 species of land plants as occurring in PNC, of which 63 are cited as threatened (CR, EN or VU) by the Brazilian National Red List, seven as data deficient (DD) and five as priorities for conservation. Fifity-one species were possible new ocurrences for ES and MG states

O trabalho da enfermagem em um serviço de controle de infecção hospitalar (SCIH): relato de experiência / The work of nursing in a hospital infection control service (SCIH): experience report

As infecções relacionadas à assistência à saúde (IRAS) representam um grande problema de saúde pública no Brasil e no mundo. Por isso, um dos campos que a enfermagem trabalha é no SCIH, realizando ações importantes para o combate de IRAS. Sendo assim, o artigo tem por objetivo relatar a experiência de acadêmicos de enfermagem da Universidade da Amazônia (UNAMA) em um SCIH de um hospital particular de Belém, Pará. Este estudo é descritivo com abordagem qualitativa, do tipo relato de experiência. Durante a experiência, notou-se a importância que a enfermagem possui no controle e prevenção das IRAS. De uma forma geral, percebeu-se a influência que um SCIH tem quando relacionado a qualidade do serviço do hospital, haja vista que, os profissionais seguem as normas estabelecidas, e isso influencia diretamente na segurança do paciente e do próprio trabalhador, trazendo benefícios para o paciente, colaboradores e serviços de saúde