Conservação e restauro da crucificação da Igreja de Miragaia : as telas de rolo nos retábulos portugueses

A pintura de altar surge, em Portugal, no final do século XVII, salvo a existência de precedentes que estiveram, possivelmente, na origem deste tipo de pintura. Com especial carácter pedagógico na Igreja, divulga a Palavra de Deus de forma mais dinâmica do que o habitual no ritual litúrgico. Os panos de altar narram histórias, estando na sua origem expostos grande parte do ano litúrgico e, consoante a pretensão cénica, eram apresentados ou simplesmente recolhidos através do sistema que os movia. A presente investigação surge no âmbito do estudo científico-analítico e da intervenção de Conservação e Restauro de uma tela altar, de rolo, pertencente à Igreja Paroquial de S. Pedro de Miragaia. Num segundo momento, a temática abrange uma análise mais ampla do panorama e da conservação das telas de rolo existentes em Portugal, nomeadamente o seu enquadramento histórico e litúrgico, salientando a originalidade e dinamismo que introduziram nas igrejas e capelas portuguesas, bem como um breve inventário das pinturas identificadas a nível nacional, onde se relacionam algumas particularidades, entre elas, os diferentes sistemas de montagem e fixação e as condições de utilização.The altar painting arises in Portugal in the late of seventeenth century, except some precedents that were possibly the source of this type of painting. With a special pedagogic character, it announces the word of God more dynamically than usually in liturgical rite. They tell stories that are exposed in the liturgical year and, depending on scenic claims, were presented or simply collected throw the system that they were moved. This research comes under a scientific-analytical study and the Conservation and Restoration of a roller canvas, belonging to the São Pedro de Miragaia Church. Secondly, the theme covers a broader analysis of the landscape and conservation of roller canvas in Portugal, including their historical and liturgical framework, stressing the originality and dynamism introduced in Portuguese churches and chapels, as well as a brief inventory paintings identified at national level, where they relate some particulars, including the different mounting and setting systems and conditions of use

Representações da ditadura portuguesa: as imagens de arquivo enquanto artefactos de memória em Fantasia Lusitana e 48

Este artigo analisa as representações da ditadura veiculadas pelo cinema produzido em Portugal. Foram selecionados como objeto de estudo dois documentários recentes – Fantasia Lusitana, 2010, de João Canijo, e 48, 2010, de Susana Sousa Dias. Pela partilha de memórias (de arquivo e pessoais), ambos os filmes podem caracterizar-se como instrumentos políticos, desconstruindo discursos oficiais, promovendo a (re)construção da memória coletiva relativa à ditadura portuguesa. Tendo optado por não incluir narrador, os realizadores criam deste modo a necessidade de envolvimento pelo público nas imagens e sons apresentados, levando-o a refletir sobre estes, potenciando o questionamento e a reconstrução das suas próprias representações sobre este período da história portuguesa

HIV prevalence among men who have sex with men in Brazil : results of the 2nd national survey using respondent-driven sampling

This paper reports human immuno-deficiency virus (HIV) prevalence in the 2nd National Biological and Behavioral Surveillance Survey (BBSS) among men who have sex with men (MSM) in 12 cities in Brazil using respondent-driven sampling (RDS). Following formative research, RDS was applied in 12 cities in the 5 macroregions of Brazil between June and December 2016 to recruit MSM for BBSS. The target sample size was 350 per city. Five to 6 seeds were initially selected to initiate recruitment and coupons and interviews were managed online. On-site rapid testing was used for HIV screening, and confirmed by a 2nd test. Participants were weighted using Gile estimator. Data from all 12 cities were merged and analyzed with Stata 14.0 complex survey data analysis tools in which each city was treated as its own strata. Missing data for those who did not test were imputed HIV+ if they reported testing positive before and were taking antiretroviral therapy. A total of 4176 men were recruited in the 12 cities. The average time to completion was 10.2 weeks. The longest chain length varied from 8 to 21 waves. The sample size was achieved in all but 2 cities. A total of 3958 of the 4176 respondents agreed to test for HIV (90.2%). For results without imputation, 17.5% (95%CI: 14.7–20.7) of our sample was HIV positive. With imputation, 18.4% (95%CI: 15.4–21.7) were seropositive. HIV prevalence increased beyond expectations from the results of the 2009 survey (12.1%; 95%CI: 10.0–14.5) to 18.4%; CI95%: 15.4 to 21.7 in 2016. This increase accompanies Brazil’s focus on the treatment to prevention strategy, and a decrease in support for community-based organizations and community prevention programs

Anomalia de Ebstein com comunicação interatrial em paciente gestante com pré-eclâmpsia: um raro relato de caso

A Anomalia de Ebstein (AE) é uma cardiopatia congênita rara, ocorre em apenas 1% das más formações cardíacas. É uma alteração da implantação dos folhetos da valva tricúspide, ocorre o aumento do volume do átrio direito e a atrialização do ventrículo direito. Geralmente, possui uma evolução clínica lenta, com sintomas aparecendo em idade avançada. A comunicação interatrial (CIA), também consiste em uma cardiopatia congênita, do tipo acianótica, comumente assintomática, com prevalência de 5 a 10% de todas as cardiopatias, mais comum em mulheres. Baseia-se na formação de um “shunt” esquerdo-direito, podendo causar hiperfluxo da veia pulmonar. Por outro lado, a pré-eclâmpsia é uma complicação gestacional detectada na vigésima semana. É uma disfunção materno/placentária responsável por elevação da pressão arterial (> 140/90 mmHg), associada a lesão de órgão alvo, proteinúria ou disfunção útero/placentária. Neste estudo, o objetivo é relatar as complicações desenvolvidas durante a gestação em paciente que possuía essa rara associação de comorbidades. Paciente feminina, 20 anos, primigesta com 30 semanas e 4 dias, vista em USG obstétrico, com descontrole pressórico desde de o início da gestação. Cardiopata, sem acompanhamento, apresentando EA e IA (diagnóstico em laudo de 2008). Foi admitida em Unidade de Terapia Intensiva (UTI) com dispneia, saturação de O2 de 91%, pressão de 150/100 mmHg. Após estabilização, solicitados pareceres para cardiologia, obstetrícia e risco anestésico. USG obstétrico mostrou compartimento fetal alterado e relação cérebro/placentária alterada. No 2º dia, após corticoterapia, paciente retorna do centro-cirúrgico após cesariana, acoplada à ventilação mecânica invasiva, devido à descompensação. Radiografia pós-cirurgia mostrou pequeno derrame pleural bilateral. Mantida Cefalotina por mais 2 dias. No dia 3, TC de tórax revelou derrame persistente e consolidações, iniciando Ceftriaxone e Clindamicina. Noradrenalina iniciada após descompensação hemodinâmica. No dia 6, após teste de respiração espontânea bem-sucedido, o ecocardiograma evidenciou AE, insuficiência tricúspide acentuada e mitral leve. Sem critérios graves, a paciente foi transferida para a enfermaria para seguimento e término da antibioticoterapia. A gestação pode agravar riscos em pacientes com comorbidades raras como anomalias cardíacas congênitas. O acompanhamento específico é crucial e, em casos graves, a gravidez deve ser evitada

Mitochondrial physiology

As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

Mitochondrial physiology

As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery

Global Retinoblastoma Presentation and Analysis by National Income Level.

Importance: Early diagnosis of retinoblastoma, the most common intraocular cancer, can save both a child's life and vision. However, anecdotal evidence suggests that many children across the world are diagnosed late. To our knowledge, the clinical presentation of retinoblastoma has never been assessed on a global scale. Objectives: To report the retinoblastoma stage at diagnosis in patients across the world during a single year, to investigate associations between clinical variables and national income level, and to investigate risk factors for advanced disease at diagnosis. Design, Setting, and Participants: A total of 278 retinoblastoma treatment centers were recruited from June 2017 through December 2018 to participate in a cross-sectional analysis of treatment-naive patients with retinoblastoma who were diagnosed in 2017. Main Outcomes and Measures: Age at presentation, proportion of familial history of retinoblastoma, and tumor stage and metastasis. Results: The cohort included 4351 new patients from 153 countries; the median age at diagnosis was 30.5 (interquartile range, 18.3-45.9) months, and 1976 patients (45.4%) were female. Most patients (n = 3685 [84.7%]) were from low- and middle-income countries (LMICs). Globally, the most common indication for referral was leukocoria (n = 2638 [62.8%]), followed by strabismus (n = 429 [10.2%]) and proptosis (n = 309 [7.4%]). Patients from high-income countries (HICs) were diagnosed at a median age of 14.1 months, with 656 of 666 (98.5%) patients having intraocular retinoblastoma and 2 (0.3%) having metastasis. Patients from low-income countries were diagnosed at a median age of 30.5 months, with 256 of 521 (49.1%) having extraocular retinoblastoma and 94 of 498 (18.9%) having metastasis. Lower national income level was associated with older presentation age, higher proportion of locally advanced disease and distant metastasis, and smaller proportion of familial history of retinoblastoma. Advanced disease at diagnosis was more common in LMICs even after adjusting for age (odds ratio for low-income countries vs upper-middle-income countries and HICs, 17.92 [95% CI, 12.94-24.80], and for lower-middle-income countries vs upper-middle-income countries and HICs, 5.74 [95% CI, 4.30-7.68]). Conclusions and Relevance: This study is estimated to have included more than half of all new retinoblastoma cases worldwide in 2017. Children from LMICs, where the main global retinoblastoma burden lies, presented at an older age with more advanced disease and demonstrated a smaller proportion of familial history of retinoblastoma, likely because many do not reach a childbearing age. Given that retinoblastoma is curable, these data are concerning and mandate intervention at national and international levels. Further studies are needed to investigate factors, other than age at presentation, that may be associated with advanced disease in LMICs

Diretriz da Sociedade Brasileira de Cardiologia sobre Diagnóstico e Tratamento de Pacientes com Cardiomiopatia da Doença de Chagas

This guideline aimed to update the concepts and formulate the standards of conduct and scientific evidence that support them, regarding the diagnosis and treatment of the Cardiomyopathy of Chagas disease, with special emphasis on the rationality base that supported it.  Chagas disease in the 21st century maintains an epidemiological pattern of endemicity in 21 Latin American countries. Researchers and managers from endemic and non-endemic countries point to the need to adopt comprehensive public health policies to effectively control the interhuman transmission of T. cruzi infection, and to obtain an optimized level of care for already infected individuals, focusing on diagnostic and therapeutic opportunistic opportunities.   Pathogenic and pathophysiological mechanisms of the Cardiomyopathy of Chagas disease were revisited after in-depth updating and the notion that necrosis and fibrosis are stimulated by tissue parasitic persistence and adverse immune reaction, as fundamental mechanisms, assisted by autonomic and microvascular disorders, was well established. Some of them have recently formed potential targets of therapies.  The natural history of the acute and chronic phases was reviewed, with enhancement for oral transmission, indeterminate form and chronic syndromes. Recent meta-analyses of observational studies have estimated the risk of evolution from acute and indeterminate forms and mortality after chronic cardiomyopathy. Therapeutic approaches applicable to individuals with Indeterminate form of Chagas disease were specifically addressed. All methods to detect structural and/or functional alterations with various cardiac imaging techniques were also reviewed, with recommendations for use in various clinical scenarios. Mortality risk stratification based on the Rassi score, with recent studies of its application, was complemented by methods that detect myocardial fibrosis.  The current methodology for etiological diagnosis and the consequent implications of trypanonomic treatment deserved a comprehensive and in-depth approach. Also the treatment of patients at risk or with heart failure, arrhythmias and thromboembolic events, based on pharmacological and complementary resources, received special attention. Additional chapters supported the conducts applicable to several special contexts, including t. cruzi/HIV co-infection, risk during surgeries, in pregnant women, in the reactivation of infection after heart transplantation, and others.     Finally, two chapters of great social significance, addressing the structuring of specialized services to care for individuals with the Cardiomyopathy of Chagas disease, and reviewing the concepts of severe heart disease and its medical-labor implications completed this guideline.Esta diretriz teve como objetivo principal atualizar os conceitos e formular as normas de conduta e evidências científicas que as suportam, quanto ao diagnóstico e tratamento da CDC, com especial ênfase na base de racionalidade que a embasou. A DC no século XXI mantém padrão epidemiológico de endemicidade em 21 países da América Latina. Investigadores e gestores de países endêmicos e não endêmicos indigitam a necessidade de se adotarem políticas abrangentes, de saúde pública, para controle eficaz da transmissão inter-humanos da infecção pelo T. cruzi, e obter-se nível otimizado de atendimento aos indivíduos já infectados, com foco em oportunização diagnóstica e terapêutica. Mecanismos patogênicos e fisiopatológicos da CDC foram revisitados após atualização aprofundada e ficou bem consolidada a noção de que necrose e fibrose sejam estimuladas pela persistência parasitária tissular e reação imune adversa, como mecanismos fundamentais, coadjuvados por distúrbios autonômicos e microvasculares. Alguns deles recentemente constituíram alvos potenciais de terapêuticas. A história natural das fases aguda e crônica foi revista, com realce para a transmissão oral, a forma indeterminada e as síndromes crônicas. Metanálises recentes de estudos observacionais estimaram o risco de evolução a partir das formas aguda e indeterminada e de mortalidade após instalação da cardiomiopatia crônica. Condutas terapêuticas aplicáveis aos indivíduos com a FIDC foram abordadas especificamente. Todos os métodos para detectar alterações estruturais e/ou funcionais com variadas técnicas de imageamento cardíaco também foram revisados, com recomendações de uso nos vários cenários clínicos. Estratificação de risco de mortalidade fundamentada no escore de Rassi, com estudos recentes de sua aplicação, foi complementada por métodos que detectam fibrose miocárdica. A metodologia atual para diagnóstico etiológico e as consequentes implicações do tratamento tripanossomicida mereceram enfoque abrangente e aprofundado. Também o tratamento de pacientes em risco ou com insuficiência cardíaca, arritmias e eventos tromboembólicos, baseado em recursos farmacológicos e complementares, recebeu especial atenção. Capítulos suplementares subsidiaram as condutas aplicáveis a diversos contextos especiais, entre eles o da co-infecção por T. cruzi/HIV, risco durante cirurgias, em grávidas, na reativação da infecção após transplante cardíacos, e outros.    Por fim, dois capítulos de grande significado social, abordando a estruturação de serviços especializados para atendimento aos indivíduos com a CDC, e revisando os conceitos de cardiopatia grave e suas implicações médico-trabalhistas completaram esta diretriz.&nbsp