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RESUMO Objetivo: Avaliar a associação entre os eventos periparto e o desenvolvimento do transtorno do espectro autista (TEA) em crianças/adolescentes. Métodos: Trata-se de um estudo de caso-controle desenvolvido no norte de Minas Gerais, Brasil. Os critérios de inclusão do grupo caso foram indivíduos com diagnóstico de TEA por laudo médico, confirmado pela Associação Norte Mineira de Apoio ao Autista ou por clínicas especializadas, e as mães que responderam positivamente a: “Seu filho foi diagnosticado com TEA?”. Assim, o grupo caso incluiu 253 mães de crianças/adolescentes com 2–15 anos diagnosticadas com autismo. O critério de inclusão no grupo controle abrangeu 852 indivíduos pertencentes à mesma faixa etária e matriculados nas mesmas escolas que o grupo caso. Um questionário semiestruturado foi aplicado às mães e o modelo de regressão logística múltipla foi adotado para a análise de dados. Para estimar a magnitude das associações, utilizou-se Odds Ratio (OR) bruta e ajustada. Resultados: O TEA foi associado à presença de mecônio no líquido amniótico (ORa 1,67; intervalo de confiança [IC95%] 1,06–2,65) e ao parto cesáreo (ORa 1,65; IC95% 1,17–2,32). A cesárea de emergência aumentou a chance de desenvolvimento do autismo (ORa 2,38; IC95% 1,61–3,51). Crianças/adolescentes com autismo apresentaram maior chance de exposição a dois ou mais eventos desfavoráveis de parto (ORa 1,59; IC95% 1,01–2,51). Conclusões: A presença de mecônio no líquido amniótico, cesárea de emergência e mais de um evento de parto desfavorável são fatores que devem ser considerados nos estudos sobre a etiologia do transtorno autístico.

Abstract Objective: To assess the association between peripartum events and autism spectrum disorder (ASD) development in children and adolescents. Methods: The current research is a case–control study in northern Minas Gerais state, Brazil. The inclusion criteria in the case group included individuals whose medical records reported an autistic disorder diagnosis, individuals had this diagnosis further confirmed by Northern Minas Autistic Support Association and specialized clinics, and their mothers had to answer positively to the question: “Was your child diagnosed with autism spectrum disorder?” in the data collection instrument. Thus, the case group included 253 mothers of children/adolescents of 2–15 years old diagnosed with autism. The inclusion criteria in the control group included 852 individuals belonging to the same age group and enrolled in the same schools as the case group. A semi-structured questionnaire was applied for mothers of children/adolescents, and the multiple logistic regression model was adopted for data analysis. Gross and adjusted Odds Ratios (ORa) were used to estimate the magnitude of the associations. Results: Autistic disorder was associated with the presence of meconium in amniotic fluid (AF) (ORa 1.67; 95% confidence interval [95%CI] 1.06–2.65) and cesarean delivery type (ORa 1.65; 95%CI 1.17–2.32). Emergency cesarean section increased autistic disorder development likelihood (ORa 2.38; 95%CI 1.61–3.51). Children and adolescents with ASD were more likely to have been exposed to two or more unfavorable peripartum events and obstetric complications than control groups (ORa 1.59; 95%CI 1.01–2.51). Conclusions: Meconium stained amniotic fluid, delivery by cesarean, and two or more unfavorable peripartum events are variables that should be considered in studies about ASD etiology.

https://doi.org/10.1590/1984-0462/2023/41/2021220

Lesão Miocárdica e Prognóstico em Pacientes Hospitalizados com COVID-19 no Brasil: Resultados do Registro Nacional de COVID-19
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Barbosa, Hannah Cardoso

; Martins, Maria Auxiliadora Parreiras

; Jesus, Jordana Cristina de

; Meira, Karina Cardoso

; Passaglia, Luiz Guilherme

; Sacioto, Manuela Furtado

; Bezerra, Adriana Falangola Benjamin

; Schwarzbold, Alexandre Vargas

; Maurílio, Amanda de Oliveira

; Farace, Barbara Lopes

; Silva, Carla Thais Cândida Alves da

; Cimini, Christiane Corrêa Rodrigues

; Silveira, Daniel Vitorio

; Carazai, Daniela do Reis

; Ponce, Daniela

; Costa, Emanuel Victor Alves

; Manenti, Euler Roberto Fernandes

; Cenci, Evelin Paola de Almeida

; Bartolazzi, Frederico

; Madeira, Glícia Cristina de Castro

; Nascimento, Guilherme Fagundes

; Velloso, Isabela Vasconcellos Pires

; Batista, Joanna d’Arc Lyra

; Morais, Júlia Drumond Parreiras de

; Carvalho, Juliana da Silva Nogueira

; Ruschel, Karen Brasil

; Martins, Karina Paula Medeiros Prado

; Zandoná, Liege Barella

; Menezes, Luanna Silva Monteiro

; Kopittke, Luciane

; Castro, Luís César de

; Nasi, Luiz Antônio

; Floriani, Maiara Anschau

; Souza, Maíra Dias

; Carneiro, Marcelo

; Bicalho, Maria Aparecida Camargos

; Lima, Maria Clara Pontello Barbosa

; Godoy, Mariana Frizzo de

; Guimarães-Júnior, Milton Henriques

; Mendes, Paulo Mascarenhas

; Delfino-Pereira, Polianna

; Ribeiro, Raquel Jaqueline Eder

; Finger, Renan Goulart

; Menezes, Rochele Mosmann

; Francisco, Saionara Cristina

; Araújo, Silvia Ferreira

; Oliveira, Talita Fischer

; Oliveira, Thainara Conceição de

; Polanczyk, Carisi Anne

; Marcolino, Milena Soriano

Arquivos Brasileiros de Cardiologia

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2023, Volume 120 N. 2 elocation e20220151

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

Abstract Background Cardiovascular complications of COVID-19 are important aspects of the disease’s pathogenesis and prognosis. Evidence on the prognostic role of troponin and myocardial injury in Latin American hospitalized COVID-19 patients is still scarce. Objectives To evaluate myocardial injury as independent predictor of in-hospital mortality and invasive mechanical ventilation support in hospitalized patients, from the Brazilian COVID-19 Registry. Methods This cohort study is a substudy of the Brazilian COVID-19 Registry, conducted in 31 Brazilian hospitals of 17 cities, March-September 2020. Primary outcomes included in-hospital mortality and invasive mechanical ventilation support. Models for the primary outcomes were estimated by Poisson regression with robust variance, with statistical significance of p<0.05. Results Of 2,925 patients (median age of 60 years [48-71], 57.1% men), 27.3% presented myocardial injury. The proportion of patients with comorbidities was higher among patients with cardiac injury (median 2 [1-2] vs. 1 [0-2]). Patients with myocardial injury had higher median levels of brain natriuretic peptide, lactate dehydrogenase, creatine phosphokinase, N-terminal pro-brain natriuretic peptide, and C-reactive protein than patients without myocardial injury. As independent predictors, C-reactive protein and platelet counts were related to the risk of death, and neutrophils and platelet counts were related to the risk of invasive mechanical ventilation support. Patients with high troponin levels presented a higher risk of death (RR 2.03, 95% CI 1.60-2.58) and invasive mechanical ventilation support (RR 1.87, 95% CI 1.57-2.23), when compared to those with normal troponin levels. Conclusion Cardiac injury was an independent predictor of in-hospital mortality and the need for invasive mechanical ventilation support in hospitalized COVID-19 patients.

Resumo Fundamento As complicações cardiovasculares da COVID-19 são aspectos importantes da patogênese e do prognóstico da doença. Evidências do papel prognóstico da troponina e da lesão miocárdica em pacientes hospitalizados com COVID-19 na América Latina são ainda escassos. Objetivos Avaliar a lesão miocárdica como preditor independente de mortalidade hospitalar e suporte ventilatório mecânico em pacientes hospitalizados, do registro brasileiro de COVID-19. Métodos Este estudo coorte é um subestudo do registro brasileiro de COVID-19, conduzido em 31 hospitais brasileiros de 17 cidades, de março a setembro de 2020. Os desfechos primários incluíram mortalidade hospitalar e suporte ventilatório mecânico invasivo. Os modelos para os desfechos primários foram estimados por regressão de Poisson com variância robusta, com significância estatística de p<0,05. Resultados Dos 2925 pacientes [idade mediana de 60 anos (48-71), 57,1%], 27,3% apresentaram lesão miocárdica. A proporção de pacientes com comorbidades foi maior nos pacientes com lesão miocárdica [mediana 2 (1-2) vs. 1 (0-20)]. Os pacientes com lesão miocárdica apresentaram maiores valores medianos de peptídeo natriurético cerebral, lactato desidrogenase, creatina fosfoquinase, N-terminal do pró-peptídeo natriurético tipo B e proteína C reativa em comparação a pacientes sem lesão miocárdica. Como fatores independentes, proteína C reativa e contagem de plaquetas foram relacionados com o risco de morte, e neutrófilos e contagem de plaquetas foram relacionados ao risco de suporte ventilatório mecânico invasivo. Os pacientes com níveis elevados de troponina apresentaram um maior risco de morte (RR 2,03, IC95% 1,60-2,58) e suporte ventilatório mecânico (RR 1,87;IC95% 1,57-2,23), em comparação àqueles com níveis de troponina normais. Conclusão Lesão cardíaca foi um preditor independente de mortalidade hospitalar e necessidade de suporte ventilatório mecânico em pacientes hospitalizados com COVID-19.

https://doi.org/10.36660/abc.20220151

COVID-19 outcomes in people living with HIV: Peering through the waves
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Sales, Thaís Lorenna Souza

; Souza-Silva, Maíra Viana Rego

; Delfino-Pereira, Polianna

; Neves, João Victor Baroni

; Sacioto, Manuela Furtado

; Assis, Vivian Costa Morais de

; Duani, Helena

; Oliveira, Neimy Ramos de

; Sampaio, Natália da Cunha Severino

; Ramos, Lucas Emanuel Ferreira

; Schwarzbold, Alexandre Vargas

; Jorge, Alzira de Oliveira

; Scotton, Ana Luiza Bahia Alves

; Castro, Bruno Mateus de

; Silva, Carla Thais Cândida Alves da

; Ramos, Carolina Marques

; Anschau, Fernando

; Botoni, Fernando Antonio

; Grizende, Genna Maira Santos

; Nascimento, Guilherme Fagundes

; Ruschel, Karen Brasil

; Menezes, Luanna Silva Monteiro

; Castro, Luís César de

; Nasi, Luiz Antônio

; Carneiro, Marcelo

; Godoy, Mariana Frizzo de

; Nogueira, Matheus Carvalho Alves

; Guimarães Júnior, Milton Henriques

; Ziegelmann, Patricia Klarmann

; Almeida, Rafaela Charão de

; Francisco, Saionara Cristina

; Silveira Neto, Sidney Teodoro

; Araújo, Silvia Ferreira

; Avelino-Silva, Thiago Junqueira

; Aliberti, Márlon Juliano Romero

; Pires, Magda Carvalho

; Silva, Eduardo Sérgio da

; Marcolino, Milena Soriano

Clinics

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2023, Volume 78 elocation 100223

Abstract: En | Text: En | PDF: En

Abstract Objective To evaluate clinical characteristics and outcomes of COVID-19 patients infected with HIV, and to compare with a paired sample without HIV infection. Methods This is a substudy of a Brazilian multicentric cohort that comprised two periods (2020 and 2021). Data was obtained through the retrospective review of medical records. Primary outcomes were admission to the intensive care unit, invasive mechanical ventilation, and death. Patients with HIV and controls were matched for age, sex, number of comorbidities, and hospital of origin using the technique of propensity score matching (up to 4:1). They were compared using the Chi-Square or Fisher's Exact tests for categorical variables and the Wilcoxon for numerical variables. Results Throughout the study, 17,101 COVID-19 patients were hospitalized, and 130 (0.76%) of those were infected with HIV. The median age was 54 (IQR: 43.0;64.0) years in 2020 and 53 (IQR: 46.0;63.5) years in 2021, with a predominance of females in both periods. People Living with HIV (PLHIV) and their controls showed similar prevalence for admission to the ICU and invasive mechanical ventilation requirement in the two periods, with no significant differences. In 2020, in-hospital mortality was higher in the PLHIV compared to the controls (27.9% vs. 17.7%; p = 0.049), but there was no difference in mortality between groups in 2021 (25.0% vs. 25.1%; p > 0.999). Conclusions Our results reiterate that PLHIV were at higher risk of COVID-19 mortality in the early stages of the pandemic, however, this finding did not sustain in 2021, when the mortality rate is similar to the control group.

https://doi.org/10.1016/j.clinsp.2023.100223

Reproductive phenology of Passiflora cincinnata Mast. in the semi-arid region of Bahia State, Brazil, based on herbarium data and IDW interpolation
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Dantas, Luiz Victor de Almeida

; Pereira, Vitor Alberto de Matos

; Menezes, Isiara Silva

; Miranda, Lia d’Afonsêca Pedreira de

; Funch, Ligia Silveira

Hoehnea

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2023, Volume 50 elocation e162023

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

ABSTRACT We investigated intensity and seasonality of the reproductive phenology of Passiflora cincinnata Mast. and estimated its flowering and fruiting periods by interpolation using Inverse Distance Weighting, for the first time in phenology, based on herbarium collections from Bahia State, Northeastern Brazil. Data from 249 exsiccates with flowers and/or fruits were analyzed to estimate the amplitude of flowering and fruiting and test the seasonality using the circular statistics. Passiflora cincinnata flowering and fruiting was greatest from October to May. The maps generated by interpolation showed greatest probability of flowering and fruiting between March and May in sites with mean annual rainfall rates between 500 and 1000 mm. Our results indicated seasonality of flowering and fruiting, with reduced intensities during the austral winter. The interpolation methodology can be used in a complementary or preliminary way, either to organize field visits and set up experiments, or to extrapolate field results for larger-scale views.

RESUMO Nós investigamos intensidade e sazonalidade da fenologia reprodutiva de Passiflora cincinnata Mast. e estimamos seus períodos de floração e frutificação por interpolação usando a Ponderação Inversa da Distância, apresentada pela primeira vez em fenologia, com base em coleções de herbários do Estado da Bahia. Dados de 249 exsicatas com flores e/ou frutos foram analisados para estimar amplitude de floração e frutificação e testar sazonalidade usando estatística circular. A floração e frutificação de P. cincinnata foram maiores de outubro a maio. Os mapas gerados por interpolação mostraram maior probabilidade de floração e frutificação entre março e maio em locais com índices pluviométricos médios anuais entre 500 e 1000 mm. Nossos resultados indicaram sazonalidade de floração e frutificação, com intensidades reduzidas durante o inverno austral. A metodologia de interpolação pode ser utilizada de forma complementar ou preliminar, seja para organizar visitas a campo e montar experimentos, seja para extrapolar resultados de campo para visualizações em maior escala.

https://doi.org/10.1590/2236-8906-e162023

Manejo das demências em fase avançada: recomendações do Departamento Científico de Neurologia Cognitiva e do Envelhecimento da Academia Brasileira de Neurologia
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Brucki, Sonia Maria Dozzi

; Aprahamian, Ivan

; Borelli, Wyllians Vendramini

; Silveira, Victor Calil da

; Ferretti, Ceres Eloah de Lucena

; Smid, Jerusa

; Barbosa, Breno José Alencar Pires

; Schilling, Lucas Porcello

; Balthazar, Márcio Luiz Figueiredo

; Frota, Norberto Anízio Ferreira

; Souza, Leonardo Cruz de

; Vale, Francisco Assis Carvalho

; Caramelli, Paulo

; Bertolucci, Paulo Henrique Ferreira

; Chaves, Márcia Lorena Fagundes

; Nitrini, Ricardo

; Schultz, Rodrigo Rizek

; Morillo, Lilian Schafirovits

Dementia & Neuropsychologia

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sep 2022, Volume 16 N. 3 Pages 101 - 120

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO A doença de Alzheimer (DA) e outras demências neurodegenerativas têm um curso progressivo com comprometimento da cognição, capacidade funcional e comportamento. A maioria dos estudos enfocou a DA. A demência grave está associada ao aumento da idade, maior morbimortalidade e aumento dos custos de cuidados. É fundamental reconhecer que a demência grave é o período mais longo de progressão, com o paciente vivendo muitos anos nesta fase. É a fase mais heterogênea do processo, com diferentes habilidades e expectativa de vida. Esta diretriz de prática concentra-se na demência grave para melhorar o manejo e o cuidado nessa fase da demência. Como um longo período no continuum da demência, as abordagens não farmacológicas e farmacológicas devem ser consideradas. Intervenções multidisciplinares (fisioterapia, fonoaudiologia, nutrição, enfermagem, entre outras) são essenciais, além de educacionais e de apoio aos cuidadores.

ABSTRACT Alzheimer’s disease (AD) and other neurodegenerative dementias have a progressive course, impairing cognition, functional capacity, and behavior. Most studies have focused on AD. Severe dementia is associated with increased age, higher morbidity-mortality, and rising costs of care. It is fundamental to recognize that severe dementia is the longest period of progression, with patients living for many years in this stage. It is the most heterogeneous phase in the process, with different abilities and life expectancies. This practice guideline focuses on severe dementia to improve management and care in this stage of dementia. As it is a long period in the continuum of dementia, clinical practice should consider non-pharmacological and pharmacological approaches. Multidisciplinary interventions (physical therapy, speech therapy, nutrition, nursing, and others) are essential, besides educational and support to caregivers.

https://doi.org/10.1590/1980-5764-dn-2022-s107pt

Ameloblastoma Differential Radiographic Findings in Children and Adolescents
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Zambaldi da-Cruz, Eduardo

; Silveira Soares, Mariana Quirino

; Cintra Junqueira, José Luiz

; Martins Montalli, Victor Ângelo

; Araújo Agatti, Larissa

; Garcia Rosa, Ana Cláudia

; Kühl Panzarella, Francine

International journal of odontostomatology

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mar 2022, Volume 16 N. 1 Pages 60 - 67

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT: The aim of this research was to investigate the radiographic, clinical, and histological features of cases of ameloblastoma from a period of 17 years in a Brazilian center and to explore potential differences in children and adolescen ts in relation to adults. Seventy-five patients diagnosed with ameloblastoma from 2001 to 2018 were included. Data from each patient including gender, age, histologic type, location, and radiographic characteristics were reviewed and analyzed retrospectively. The association between the clinical, radiographic, and histologic findings was investigated. No differences regarding the histological pattern of the lesions were observed between groups. Children and adolescents presented well- defined lesions associated with an unerupted tooth compared to adults (p<0.05). The presence of an unerupted tooth was associated with cortical erosion and expansion and MC displacement (p<0.05). Despite similar histologic characteristics, differential radiographic appearance was observed between young patients and adults.

RESUMEN: El objetivo de este trabajo fue investigar las características radiográficas, clínicas e histológicas de casos de ameloblastoma en un período de 17 años, en un centro brasileño y explorar las posibles diferencias en niños y adolescentes en relación con los adultos. Se incluyeron 75 pacientes diagnosticados con ameloblastoma desde 2001 hasta 2018. Los datos de cada paciente, incluyendo el sexo, la edad, el tipo histológico, la ubicación y las características radiográficas, se revisaron y analizaron retrospectivamente. Se investigó la asociación entre los hallazgos clínicos, radiográficos e histológicos. No se observaron diferencias en cuanto al patrón histológico de las lesiones entre los grupos. Los niños y adolescentes presentaron lesiones bien definidas asociadas a un diente no erupcionado en comparación con los adultos (p<0,05). La presencia de un diente no erupcionado se asoció con erosión y expansión cortical y desplazamiento de MC (p<0,05). A pesar de las características histológicas similares, se observó una apariencia radiográfica diferente entre pacientes jóvenes y adultos.

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The Role of the Resident Doctor in Orthopedics and Traumatology in a Large Hospital of the Unified Health System: What is the User’s view?
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Oliveira, Luiz Felippe Mokdeci Martins de

; Ramallo, Daniel Alves

; Möller, João Victor Silveira

; Leal, Ana Carolina

; Ribeiro, Gabriel Araujo

; Guimarães, João Antonio Matheus

Revista Brasileira de Ortopedia

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aug 2021, Volume 56 N. 4 Pages 438 - 445

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Objetivo Avaliar o conhecimento de pacientes atendidos em um hospital-escola acerca da formação acadêmica e profissional do médico residente em ortopedia e traumatologia, bem como sua área de atuação, e determinar a percepção de conforto e segurança do paciente em relação a ser assistido pelo médico residente em diferentes etapas do tratamento. Métodos Foi realizado um estudo transversal com pacientes internados em um hospital de ortopedia de grande porte do Sistema Único de Saúde (SUS). Os dados foram coletados a partir da aplicação de um questionário contendo 19 questões objetivas que avaliaram parâmetros sociodemográficos e a percepção do paciente quanto à atuação do residente. Os dados foram analisados de forma a avaliar a frequência das respostas obtidas. Resultados Foram avaliados 152 participantes, predominantemente do sexo masculino (62,5%) e com idade entre 36 e 55 anos (41,3%). Apenas 43,3% tinham conhecimento sobre a formação acadêmica do residente. Os pacientes relataram se sentir mais seguros e confortáveis em serem assistidos pelo médico em conjunto com o residente na consulta ambulatorial (43,3%), na enfermaria (39,3%) e durante a cirurgia (61%). Quanto à atuação do residente, 80,2% afirmaram que o médico residente melhora a comunicação entre o paciente e o cirurgião principal, entretanto e apenas 11% disseram se sentir seguros e confortáveis sendo cuidados exclusivamente por residentes no ambiente cirúrgico, caso fosse permitido. Conclusão A participação de médicos residentes nos cuidados é bem recebida pelos pacientes, desde que em companhia do médico assistente. Os pacientes identificam nos residentes uma ponte facilitadora na comunicação com os médicos assistentes.

Abstract Objective To assess the knowledge of patients seen at a teaching hospital about the academic and professional training of the resident doctor in orthopedics and traumatology, as wellas his areaofexpertise, and determinethe perception of thepatients ofcomfort and safety in relation to being assisted by the resident doctor at different stages of treatment. Methods A cross-sectional study was conducted with patients admitted to a large ortho pedics hospital of the Brazilian Unified Health System(SUS, in the Portugues e acronym). Datawere collected through the application of a questionnaire containing 19 objective questions that assessed sociodemographic parameters and the perception of the patient of the performance of the resident. The data were analyzed to assess the frequency of responses obtained. Results 152 participantswere evaluated, predominantlymale(62.6%)andaged between 36 and 55 years old (41.3%). Only 43.3% were aware of the academic background of the resident. Patients reportedfeelingsaferandmorecomfortablebeingassistedbythedoctor together with the resident in the outpatient consultation (43.3%), in the nursing ward (39.3%)andduringsurgery(61%).Asfor theperformanceof theresident,80.2%statedthat the resident doctor improves communication between the patient and the main surgeon; however, only 11% said they would feel safe and comfortable being cared for exclusively by residents in the surgical environment, if allowed. Conclusion The participation of resident physicians in the care is well received by the patients if they are in the company of the attending physician. Patients identify residents as a facilitating bridge in the communication with attending physicians.

https://doi.org/10.1055/s-0040-1718513 45 downloads

Atualização de Tópicos Emergentes da Diretriz Brasileira de Insuficiência Cardíaca – 2021
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Marcondes-Braga, Fabiana G.

; Moura, Lídia Ana Zytynski

; Issa, Victor Sarli

; Vieira, Jefferson Luis

; Rohde, Luis Eduardo

; Simões, Marcus Vinícius

; Fernandes-Silva, Miguel Morita

; Rassi, Salvador

; Alves, Silvia Marinho Martins

; Albuquerque, Denilson Campos de

; Almeida, Dirceu Rodrigues de

; Bocchi, Edimar Alcides

; Ramires, Felix José Alvarez

; Bacal, Fernando

; Rossi Neto, João Manoel

; Danzmann, Luiz Claudio

; Montera, Marcelo Westerlund

; Oliveira Junior, Mucio Tavares de

; Clausell, Nadine

; Silvestre, Odilson Marcos

; Bestetti, Reinaldo Bulgarelli

; Bernadez-Pereira, Sabrina

; Freitas Jr, Aguinaldo F.

; Biolo, Andréia

; Barretto, Antonio Carlos Pereira

; Jorge, Antônio José Lagoeiro

; Biselli, Bruno

; Montenegro, Carlos Eduardo Lucena

; Santos Júnior, Edval Gomes dos

; Figueiredo, Estêvão Lanna

; Fernandes, Fábio

; Silveira, Fabio Serra

; Atik, Fernando Antibas

; Brito, Flávio de Souza

; Souza, Germano Emílio Conceição

; Ribeiro, Gustavo Calado de Aguiar

; Villacorta, Humberto

; Souza Neto, João David de

; Goldraich, Livia Adams

; Beck-da-Silva, Luís

; Canesin, Manoel Fernandes

; Bittencourt, Marcelo Imbroinise

; Bonatto, Marcely Gimenes

; Moreira, Maria da Consolação Vieira

; Avila, Mônica Samuel

; Coelho Filho, Otavio Rizzi

; Schwartzmann, Pedro Vellosa

; Mourilhe-Rocha, Ricardo

; Mangini, Sandrigo

; Ferreira, Silvia Moreira Ayub

; Figueiredo Neto, José Albuquerque de

; Mesquita, Evandro Tinoco

Arquivos Brasileiros de Cardiologia

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jun 2021, Volume 116 N. 6 Pages 1174 - 1212

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.36660/abc.20210367 3168 downloads

Azamora penicillana occurrence in sour passion fruit in the state of Minas Gerais
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Pirovani, Victor Dias

; Fancelli, Marilene

; Moreira, Bruno Magno

; Silveira, Luiz Flávio Vianna

; Pratissoli, Dirceu

Revista Brasileira de Fruticultura

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2020, Volume 42 N. 1 elocation e-567

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Azamora penicillana (Walker) (Lepidoptera: Pyralidae) é conhecida popularmente como lagarta exótica do maracujazeiro, de teia do maracujazeiro, do capote ou cartucheira. É uma praga emergente da cultura do maracujazeiro em função dos danos provocados à cultura e das dificuldades de manejo em função do hábito do inseto. Esta espécie é registrada pela primeira vez infestando a cultura do maracujazeiro, no Estado de Minas Gerais, atacando folhas, frutos e ramos. Os ataques da praga foram registrados de forma generalizada em todo o pomar.

Abstract Azamora penicillana (Walker) (Lepidoptera: Pyralidae) is popularly known as exotic passionflower caterpillar, passionflower web, cloak or pouch. It is considered an emergent pest of passion fruit crop due to damages caused to the plant and management difficulties related to insect habit. This species is recorded for the first time infesting passion fruit in the state of Minas Gerais attacking leaves, fruits and branches. Pest attacks have been widely reported throughout the orchard.

https://doi.org/10.1590/0100-29452020567 736 downloads

10.

Influence of in vitro micropropagation on lycorine biosynthesis and anticholinesterase activity in Hippeastrum goianum
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Costa, Gabriella Gusmão Pereira da

; Silva, Cristian Aldemar Gasca

; Gomes, João Victor Dutra

; Torres, Amanda Gomes

; Santos, Izulmé Rita Imaculada

; Almeida, Fabrício Tavares Cunha de

; Fagg, Christopher William

; Simeoni, Luiz Alberto

; Silveira, Dâmaris

; Gomes-Copeland, Kicia Karinne Pereira

Revista Brasileira de Farmacognosia

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apr 2019, Volume 29 N. 2 Pages 262 - 265

Abstract: En | Text: En | PDF: En

ABSTRACT Hippeastrum goianum (Ravenna) Meerow, Amaryllidaceae, is an endemic species from the Cerrado, Brazil; there are only few studies about its chemistry or biological activity. This study aimed to investigate the occurrence of lycorine in extracts from in vitro H. goianum plantlets, as well as evaluate a possible inhibition of acetylcholinesterase. The ethanol extract of plantlets produced by in vitro seed germination and micropropagation of bulblets was obtained from seedlings from in vitro germination, while the ethanol extract micropropagtion of bulblets was obtained from a subculture of those seedlings. The presence of lycorine was detected in only in the micropropagation of bulblets. The micropropagation of bulblets was more active than the plantlets produced by in vitro seed germination, with an IC50 of 114.8 ± 0.95 µg/ml and IC50 386.00 ± 0.97 µg/ml, respectively. These results showed that both in vitro germination and micropropagation of H. goianum can lead to the biosynthesis of lycorine. Moreover, the micropropagation led to improved anticholinesterase activity.

https://doi.org/10.1016/j.bjp.2019.02.001 483 downloads

11.

An overview of migratory birds in Brazil
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Somenzari, Marina

; Amaral, Priscilla Prudente do

; Cueto, Víctor R.

; Guaraldo, André de Camargo

; Jahn, Alex E.

; Lima, Diego Mendes

; Lima, Pedro Cerqueira

; Lugarini, Camile

; Machado, Caio Graco

; Martinez, Jaime

; Nascimento, João Luiz Xavier do

; Pacheco, José Fernando

; Paludo, Danielle

; Prestes, Nêmora Pauletti

; Serafini, Patrícia Pereira

; Silveira, Luís Fábio

; Sousa, Antônio Emanuel Barreto Alves de

; Sousa, Nathália Alves de

; Souza, Manuella Andrade de

; Rodrigues Telino-Júnior, Wallace

; Whitney, Bret Myers

Papéis Avulsos de Zoologia

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2018, Volume 58 elocation e20185803

Abstract: En | Text: En | PDF: En

Abstract We reviewed the occurrences and distributional patterns of migratory species of birds in Brazil. A species was classified as migratory when at least part of its population performs cyclical, seasonal movements with high fidelity to its breeding grounds. Of the 1,919 species of birds recorded in Brazil, 198 (10.3%) are migratory. Of these, 127 (64%) were classified as Migratory and 71 (36%) as Partially Migratory. A few species (83; 4.3%) were classified as Vagrant and eight (0,4%) species could not be defined due to limited information available, or due to conflicting data.

https://doi.org/10.11606/1807-0205/2018.58.03 8318 downloads

12.

Propriedades de ZrO2 (Y2 O3) reciclado proveniente da confecção de próteses dentárias
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Magnago, Roberto de Oliveira

; Reis, Mario Victor dos

; Mendonça, Pedro Luiz Costa

; Silveira, Cristiano Augusto Manhães

; Lima, Márcio Alves de

; Santos, Claudinei dos

Matéria (Rio de Janeiro)

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dec 2015, Volume 20 N. 4 Pages 975 - 981

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO O objetivo deste trabalho foi a recuperação de descartes de ZrO2(Y2O3) oriundos de laboratórios de próteses dentárias, a partir do seu reprocessamento. Os descartes de ZrO2(Y2O3) foram fragmentados, peneirados e calcinados a 900ºC. Pós com tamanho menor que 32μm foram prensados uniaxialmente a 100MPa e sinterizados em temperaturas entre 1400 e 1600ºC-120min. Análise de difração de raios X realizadas nos materiais calcinados indicaram a presença majoritária da fase ZrO2 tetragonal. Os compactos apresentaram densidade a verde próximo a 47% e as amostras sinterizadas tiveram sua densidade relativa variando entre 83,5% e 95%, para temperaturas de sinterização de 1400 e 1600ºC, respectivamente. Os resultados da análise de difração de raios X indicaram a presença da fase ZrO2 tetragonal, com dureza Vickers e tenacidade máxima obtidos para as amostras sinterizadas a 1600ºC, da ordem de 1100 HV e 5,7 MPa.m1/2 respectivamente.

ABSTRACT The objective was the recovery of ZrO2(Y2O3) discarded arising from dentistry prosthetic laboratories. ZrO2(Y2O3) were fragmented, sieved and calcined at 900°C. Powders with size less than 32μm were uniaxially pressed to 100MPa and sintered at temperatures between 1400 and 1600ºC-120min. X-ray diffraction analysis performed on the calcined material showed the predominant presence of tetragonal ZrO2 phase. The green compact had the density close to 47% and sintered samples had a relative density ranging between 83.5% and 95% for sintering temperatures of 1400 and 1600ºC, respectively. The analysis results of X-ray diffraction indicated the presence of the tetragonal ZrO2 phase, with maximum Vickers hardness and toughness obtained for the samples sintered at 1600ºC, of the order of 1100 HV and 5.7 MPa.m1/2 respectively.

https://doi.org/10.1590/S1517-707620150004.0101 1146 downloads

13.

Ecophysiological aspects of sun and shade leaves of Ponkan tangerine (Citrus reticulata Blanco)
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Grecco, Eduardo Domingos

; Vianna Silveira, Luiz Flavio

; de Souza Lima, Victor Luiz

; Macedo Pezzopane, Jose Eduardo

Idesia (Arica)

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nov 2014, Volume 32 N. 4 Pages 113 - 117

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

The Ponkan tangerine (Citrus reticulata) has wide acceptance by consumers due to several properties; it is a colorful, sweet, and easy to peel fruit. The purpose of this study was to evaluate ecophysiological aspects of the response of plants of Ponkan tangerine to shading, according to relative intensity of light, in order to assess the adaptability of this species to shade. Leaves were collected from the upper canopy (sun) and lower canopy (shade) to determine the ecophysiological aspects. Cuts were by hand made to assess the thickness of palisade parenchyma, number of stomata (mm²) and total thickness of the leaf. Cross-sections of the middle part of leaves were obtained to assess the parenchyma, using a body-of-evidence, and for the stomata cuts were made on the abaxial surfaces. Chlorophyll was extracted from the leaves of Ponkan Tangerine and subsequently measured in a spectrophotometer at wave lengths 645nm and 663nm The ratio between chlorophyll a and b tended to increase with increased intensity of light. Shading did not affect the anatomical characteristics of Ponkan tangerine plants. However, chlorophyll levels were different in sun and shade leaves.

Ponkan mandarina (Citrus reticulata) tiene una amplia aceptación por los consumidores debido a varios aspectos: es una fruta colorida, cáscara dulce y fácil de pelar. El propósito de este estudio fue evaluar la respuesta a la sombra de las plantas de Ponkan mandarina (Citrus reticulata) respecto de sus aspectos ecofisiológicos, de acuerdo con la intensidad relativa de la luz, a fin de evaluar la capacidad de adaptación de esta especie para dar sombra. Las hojas se obtienen de la cubierta superior (sol) y la cubierta inferior (sombra) para la determinación de los aspectos ecofisiológicos. Cortes en las manos se hicieron para la evaluación del espesor de parénquima de empalizada, número de estomas (mm²) y el espesor total de la hoja. Las secciones transversales de la parte media de la licencia se obtuvieron, para la evaluación de la parénquima, utilizando un cuerpo de evidencia, y para el estomática se hicieron cortes en la superficie abaxial. La clorofila se extrajo de las hojas de mandarina Ponkan y posteriormente se mide en espectrofotometría a longitudes de onda de 645nm y 663nm. La relación entre la clorofila a y b tendía a aumentar con una mayor intensidad de luz. El sombreado no afectó a las características anatómicas de las plantas de mandarina Ponkan. Sin embargo, los niveles de clorofila fueron diferentes en "sol" y se va "sombra".

2125 downloads

14.

Estimativa do índice de área foliar e determinação do coeficiente de extinção luminosa da abóbora Cucurbita moschata var. japonesa
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Grecco, Eduardo Domingo

; Vianna Silveira, Luiz Flávio

; de Souza Lima, Victor Luiz

; Macedo Pezzopane, José Eduardo

Idesia (Arica)

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apr 2011, Volume 29 N. 1 Pages 37 - 41

Abstract: En Pt | Text: En Pt | PDF: En | PDF: Pt

The indirect methods for the determination of leaf area index (LAI), which estimate the total radiation that penetrates the leaf covering are currently the most used, because they are more practical. The study was done to measure and estimate the leaf area index, adjust an equation using the product (length x width x leaf area) and determine the light extinction coefficient in pumpkin Cucurbita moschata var. japanese. To develop a model, the length and width of twenty leaves were measured; to the estimate leaf area index five repetitions of 1m² were used; three measurements were made within the leaves and one in the superior part of the plants. Later, the leaves were collected for measurements in the laboratory. To obtain the light extinction coefficient (k) fifteen points of culture were measured, in conditions of sun and shade. The LAI estimated were 2.624 and 1.145, indicating a mathematical model with linear growth; the extinction coefficient was 0.59. This work was important to determine the measured values of LAI and the extinction coefficient for the cultivation of pumpkin.

Os métodos indiretos para a determinação do índice de área foliar (IAF), que são caracterizados em medidas da radiação total que penetram no interior da cobertura vegetal, são atualmente os mais utilizados, por serem mais práticos. O estudo teve como objetivo medir e estimar o índice de área foliar, ajustar uma equação através do produto de (comprimento x largura x área foliar) e determinar o coeficiente de extinção luminosa em abóbora Cucurbita moschata var. japonesa. Para desenvolver um modelo, foram medidas vinte folhas determinando-se o comprimento e a largura e para a estimativa do índice de área foliar, foram utilizados cinco repetições de 1m², sendo feitas três medidas no interior das folhas e uma medida na parte superior das plantas. Posteriormente, suas folhas foram coletadas para medições de área foliar em laboratório. Para a obtenção do coeficiente de extinção luminosa (k) foram medidos quinze pontos da cultura, em condições de sol e de sombra. O IAF medido foi 1,145 e o estimado 2,624, mostrando um modelo matemático com crescimento linear originando uma reta e o coeficiente de extinção foi de 0,59. Este trabalho foi importante para determinar os valores de IAF medido, estimado e o coeficiente de extinção para a cultura de abóbora.

3627 downloads Cited 1 time in SciELO

15.

Aplicação da audiometria troncoencefálica na detecção de perdas auditivas retrococleares em trabalhadores de manutenção hospitalar expostos a ruído
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Silveira, Victor Luiz da

; Câmara, Volney de Magalhães

; Rosalino, Cláudia Maria Valete

Ciência & Saúde Coletiva

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feb 2011, Volume 16 N. 2 Pages 689 - 698

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

O objetivo principal deste estudo seccional foi averiguar a presença de comprometimento auditivo retrococlear num grupo de trabalhadores de manutenção de um hospital de grande porte com histórico de exposição a ruído. Foram avaliados 31 trabalhadores de três setores da divisão de engenharia entre 25 e 60 anos e com exposição contínua a ruído entre 2 e 45 anos. O processo avaliativo contou com triagem audiométrica ocupacional e audiometria troncoencefálica (ATE). Foram detectadas anormalidades na ATE em sete pacientes (22,6%), caracterizadas por aumento de latências de ondas III (14,3%) e V (28,6%); prolongamento dos interpicos I-III (71,4%), III-V (28,6%) e I-V (85,7%). Das 35 orelhas com audição normal (três unilateralmente e 32 bilateralmente), quatro (11,4%) apresentaram comprometimento retrococlear. A alta prevalência de comprometimento retrococlear no grupo induz supor que tal distúrbio seja mais frequente que o encontrado e esteja sendo subestimado na investigação diagnóstica desses trabalhadores. A ocorrência desses resultados sem a presença de alterações audiométricas sugere que a ATE seja mais sensível que a audiometria tonal na investigação de perda auditiva provocada por ruído, por isso sua utilização deva ser incentivada.

The main purpose of this cross-seccional study was to investigate the presence of retrocochlear disease in a group of maintenance workers from a general hospital, who presents a history of noise exposure. Thirty one workers of three engineering sections with age range from 25 to 60 years and continuous noise exposure from 2 and 45 years, were examined. The evaluation included an audiometric occupational selection and auditory brainstem responses (ABR). ABR abnormalities were detected in seven patients (22.6%) and it was found latency increase of waves III (14.3%) and V (28.6%), and interpeak prolongation I-III (71.4%), III-V (28.6%) and I-V (85.7%). Among 35 ears with normal audition right, left or both , four (11,4%) ears presented retrocochlear disease. The high retrocochlear disease prevalence in workers exposed to noise lead us to suppose that this disturbance is more frequent than usually found; therefore it is underestimated in workers diagnostic evaluation. The presence of this kind of disturbance, even with the absence of audiometric alterations, suggests that ABR is more sensitive than the tonal audiometry for noise induced hearing loss investigation.

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