76 research outputs found

    ExperiĂȘncia, teoria e ação : prĂĄticas pedagĂłgicas de ensino de lĂ­ngua portuguesa

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    -Este livro apresenta açÔes pedagĂłgicas de ensino de lĂ­ngua portuguesa e literatura implementadas no Ăąmbito do Mestrado Profissional em Letras da Universidade Federal de Juiz de Fora. Em uma perspectiva de pesquisa ação, foram desenvolvidas intervençÔes em sala de aula de ensino bĂĄsico, pautadas em abordagens teĂłricas recentes. As motivaçÔes, etapas de intervenção, bases teĂłricas, experiĂȘncias e resultados das intervençÔes sĂŁo expostos e discutidos na obra como forma de incentivar a replicação de açÔes exitosas de ensino de lĂ­ngua materna

    Inborn errors of OAS-RNase L in SARS-CoV-2-related multisystem inflammatory syndrome in children

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    Multisystem inflammatory syndrome in children (MIS-C) is a rare and severe condition that follows benign COVID-19. We report autosomal recessive deficiencies of OAS1, OAS2, or RNASEL in five unrelated children with MIS-C. The cytosolic double-stranded RNA (dsRNA)-sensing OAS1 and OAS2 generate 2'-5'-linked oligoadenylates (2-5A) that activate the single-stranded RNA-degrading ribonuclease L (RNase L). Monocytic cell lines and primary myeloid cells with OAS1, OAS2, or RNase L deficiencies produce excessive amounts of inflammatory cytokines upon dsRNA or severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) stimulation. Exogenous 2-5A suppresses cytokine production in OAS1-deficient but not RNase L-deficient cells. Cytokine production in RNase L-deficient cells is impaired by MDA5 or RIG-I deficiency and abolished by mitochondrial antiviral-signaling protein (MAVS) deficiency. Recessive OAS-RNase L deficiencies in these patients unleash the production of SARS-CoV-2-triggered, MAVS-mediated inflammatory cytokines by mononuclear phagocytes, thereby underlying MIS-C

    COVID-19 symptoms at hospital admission vary with age and sex: results from the ISARIC prospective multinational observational study

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    Background: The ISARIC prospective multinational observational study is the largest cohort of hospitalized patients with COVID-19. We present relationships of age, sex, and nationality to presenting symptoms. Methods: International, prospective observational study of 60 109 hospitalized symptomatic patients with laboratory-confirmed COVID-19 recruited from 43 countries between 30 January and 3 August 2020. Logistic regression was performed to evaluate relationships of age and sex to published COVID-19 case definitions and the most commonly reported symptoms. Results: ‘Typical’ symptoms of fever (69%), cough (68%) and shortness of breath (66%) were the most commonly reported. 92% of patients experienced at least one of these. Prevalence of typical symptoms was greatest in 30- to 60-year-olds (respectively 80, 79, 69%; at least one 95%). They were reported less frequently in children (≀ 18 years: 69, 48, 23; 85%), older adults (≄ 70 years: 61, 62, 65; 90%), and women (66, 66, 64; 90%; vs. men 71, 70, 67; 93%, each P < 0.001). The most common atypical presentations under 60 years of age were nausea and vomiting and abdominal pain, and over 60 years was confusion. Regression models showed significant differences in symptoms with sex, age and country. Interpretation: This international collaboration has allowed us to report reliable symptom data from the largest cohort of patients admitted to hospital with COVID-19. Adults over 60 and children admitted to hospital with COVID-19 are less likely to present with typical symptoms. Nausea and vomiting are common atypical presentations under 30 years. Confusion is a frequent atypical presentation of COVID-19 in adults over 60 years. Women are less likely to experience typical symptoms than men

    Estudo histolĂłgico do fĂ­gado e bioquĂ­mico do sangue de ratos apĂłs ligadura do ducto hepĂĄtico direito

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    Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de CiĂȘncias da SaĂșde. Programa de PĂłs-Graduação em CiĂȘncias MĂ©dicas

    Prospero Fortuna.

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    Mode of access: Internet

    The real impact of colonic transit time and anorectal manometry in the diagnosis of adult patients with chronic constipation

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    Introduction: Anorectal physiology tests are indicated for patients who have refractory symptoms of constipation, but the best sequence of investigation remains controversial. Objective: To evaluate the influence of colonic transit time and anorectal manometry in the diagnosis of chronic constipation in adults. Method: This was a study of adult patients with constipation at a private clinic in a city in southern Brazil, from January 1, 2009 to December 31, 2018. Those who showed warning signs were referred for colonoscopy and those with any anatomical alterations were excluded. The patients received 10 g of psyllium and those who remained symptomatic after three weeks were referred for functional assessment with colonic transit time (CTT). Those who presented outlet obstruction in the colonic transit time were referred to anorectal manometry. Results: Of the 889 adult patients surveyed, 227 were included. Of the 216 who completed the study, 167 responded to primary treatment. Forty-nine underwent CTT. In these, 16 had normal colonic transit time and 33 were altered. In those with altered colonic transit time, eight had a pattern of colonic inertia and 25 had an obstruction pattern. The 25 patients with an outlet obstruction pattern underwent anorectal manometry. Eighteen had signs of paradoxical contracture of the puborectal muscle (PPRC) and seven did not. Conclusion: This study concluded that anorectal physiology exams contribute to the diagnosis of constipation, often changing the behavior. These exams should be performed whenever the patient does not respond to hygienic changes and fiber replacement. Resumo: Introdução: Os exames de fisiologia anorretal estĂŁo indicados nos pacientes que mantĂ©m sintomas refratĂĄrios de constipação, porĂ©m uma sequĂȘncia desejada de investigação permanece contraditĂłria. Objetivo: Avaliar a influĂȘncia do tempo de trĂąnsito colĂŽnico e da manometria anorretal no diagnĂłstico da constipação crĂŽnica de adultos. MĂ©todo: Estudamos os pacientes adultos de uma clĂ­nica privada em uma cidade do sul do Brasil, no perĂ­odo de 01 de Janeiro de 2009 a 31 de Dezembro de 2018 apresentando constipação. Aqueles que apresentassem sinais de alerta, eram encaminhados a colonoscopia e com qualquer alteração anatĂŽmica eram excluĂ­dos. Foram prescritos 10 g de Psyllium e aqueles que permaneceram sintomĂĄticos apĂłs trĂȘs semanas foram encaminhados Ă  avaliação funcional com tempo de trĂąnsito colĂŽnico (TTC). Os que apresentavam obstrução de saĂ­da ao tempo de trĂąnsito colĂŽnico foram encaminhados a manometria anorretal. Resultados: Dos 889 pacientes adultos levantados, 227 foram incluĂ­dos. Dos 216 que concluĂ­ram o estudo, 167 responderam ao tratamento primĂĄrio. Quarenta e nove realizaram TTC. Nestes, 16 tiveram tempo de trĂąnsito colĂŽnico normal e 33 alterado. Naqueles com tempo de trĂąnsito colĂŽnico alterado: oito tinham padrĂŁo de inĂ©rcia colĂŽnica e 25, padrĂŁo de obstrução de saĂ­da. Os 25 pacientes com padrĂŁo de obstrução de saĂ­da foram submetidos Ă  manometria anorretal. Dezoito tinham sinais de Contratura Paradoxal do mĂșsculo Puborretal (CPPR) e sete nĂŁo. ConclusĂŁo: ConcluĂ­mos que os exames de fisiologia anorretal contribuem para o diagnĂłstico da constipação, muitas vezes alterando a conduta. Estes exames devem ser realizados sempre que o paciente nĂŁo responder as alteraçÔes higienodietĂ©ticas e a reposição de fibras
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