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1.
Estratégias para abordar a Judicialização da Saúde no Brasil: uma síntese de evidências
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Floriano, Fabiana Raynal
; Boeira, Laura
; Biella, Carla de Agostino
; Pereira, Viviane Cássia
; Carvalho, Marcel
; Barreto, Jorge Otávio Maia
; Oliveira, Sandra Maria do Valle Leone de
.
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Resumo A fim de identificar e discutir opções informadas por evidências para abordar a judicialização da saúde no Brasil, utilizou-se as Ferramentas SUPPORT (Supporting Policy Relevant Reviews and Trials). A busca foi realizada nas bases PubMed; Health Systems Evidence; Campbell Collaboration; Cochrane Library; Rx for Change Database e PDQ-Evidence. A seleção e avaliação da qualidade metodológica foi feita por dois revisores independentes. Os resultados foram apresentados numa síntese narrativa. Dezenove revisões sistemáticas apontam quatro opções: 1) Serviço de respostas rápidas; 2) Programa de educação permanente; 3) Serviço de mediação entre as partes envolvidas; e 4) Adoção de ferramenta online (baseada em computador) de suporte à decisão e de intervenções mediadas por pacientes. Conclusões: Apresentamos e caracterizamos quatro opções que podem ser consideradas para abordar a judicialização da saúde. A implementação dessas opções deve garantir a participação de diferentes atores, refletindo sobre variados contextos. Recursos humanos e financeiros, capacitação das equipes, são os principais pontos críticos.
Abstract This article seeks to identify and discuss evidence-informed options to address the judicialization of health. The Supporting Policy Relevant Reviews and Trials Tools were used to define the problem and the search strategy, which was carried out in the following databases: PubMed, Health Systems Evidence, Campbell, Cochrane Collaboration, Rx for Change Database, and PDQ-Evidence. Selection and assessment of methodological quality was performed by two independent reviewers. The results were presented in a narrative synthesis. This study selected 19 systematic reviews that pointed out four strategies to address the judicialization of health in Brazil: 1) Rapid response service, 2) Continuous education program, 3) Mediation service between the parties involved, and 4) Adoption of a computer-based, online decision-making support tool and patient-mediated interventions. This study therefore presented and characterized four options that can be considered to address the judicialization of health. The implementation of these options must ensure the participation of different actors, reflecting on different contexts and the impact on the health system. The availability of human and financial resources and the training of teams are critical points for the successful implementation of the options.
2.
Estratégias para abordar a Judicialização da Saúde no Brasil: uma síntese de evidências
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Floriano, Fabiana Raynal
; Boeira, Laura
; Biella, Carla de Agostino
; Pereira, Viviane Cássia
; Carvalho, Marcel
; Barreto, Jorge Otávio Maia
; Oliveira, Sandra Maria do Valle Leone de
.
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Resumo A fim de identificar e discutir opções informadas por evidências para abordar a judicialização da saúde no Brasil, utilizou-se as Ferramentas SUPPORT (Supporting Policy Relevant Reviews and Trials). A busca foi realizada nas bases PubMed; Health Systems Evidence; Campbell Collaboration; Cochrane Library; Rx for Change Database e PDQ-Evidence. A seleção e avaliação da qualidade metodológica foi feita por dois revisores independentes. Os resultados foram apresentados numa síntese narrativa. Dezenove revisões sistemáticas apontam quatro opções: 1) Serviço de respostas rápidas; 2) Programa de educação permanente; 3) Serviço de mediação entre as partes envolvidas; e 4) Adoção de ferramenta online (baseada em computador) de suporte à decisão e de intervenções mediadas por pacientes. Conclusões: Apresentamos e caracterizamos quatro opções que podem ser consideradas para abordar a judicialização da saúde. A implementação dessas opções deve garantir a participação de diferentes atores, refletindo sobre variados contextos. Recursos humanos e financeiros, capacitação das equipes, são os principais pontos críticos.
Abstract This article seeks to identify and discuss evidence-informed options to address the judicialization of health. The Supporting Policy Relevant Reviews and Trials Tools were used to define the problem and the search strategy, which was carried out in the following databases: PubMed, Health Systems Evidence, Campbell, Cochrane Collaboration, Rx for Change Database, and PDQ-Evidence. Selection and assessment of methodological quality was performed by two independent reviewers. The results were presented in a narrative synthesis. This study selected 19 systematic reviews that pointed out four strategies to address the judicialization of health in Brazil: 1) Rapid response service, 2) Continuous education program, 3) Mediation service between the parties involved, and 4) Adoption of a computer-based, online decision-making support tool and patient-mediated interventions. This study therefore presented and characterized four options that can be considered to address the judicialization of health. The implementation of these options must ensure the participation of different actors, reflecting on different contexts and the impact on the health system. The availability of human and financial resources and the training of teams are critical points for the successful implementation of the options.
3.
IMPACTO-MR: um estudo brasileiro de plataforma nacional para avaliar infecções e multirresistência em unidades de terapia intensiva
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Tomazini, Bruno M
; Nassar Jr, Antonio Paulo
; Lisboa, Thiago Costa
; Azevedo, Luciano César Pontes de
; Veiga, Viviane Cordeiro
; Catarino, Daniela Ghidetti Mangas
; Fogazzi, Debora Vacaro
; Arns, Beatriz
; Piastrelli, Filipe Teixeira
; Dietrich, Camila
; Negrelli, Karina Leal
; Jesuíno, Isabella de Andrade
; Reis, Luiz Fernando Lima
; Mattos, Renata Rodrigues de
; Pinheiro, Carla Cristina Gomes
; Luz, Mariane Nascimento
; Spadoni, Clayse Carla da Silva
; Moro, Elisângela Emilene
; Bueno, Flávia Regina
; Sampaio, Camila Santana Justo Cintra
; Silva, Débora Patrício
; Baldassare, Franca Pellison
; Silva, Ana Cecilia Alcantara
; Veiga, Thabata
; Barbante, Leticia
; Lambauer, Marianne
; Campos, Viviane Bezerra
; Santos, Elton
; Santos, Renato Hideo Nakawaga
; Laranjeiras, Ligia Nasi
; Valeis, Nanci
; Santucci, Eliana
; Miranda, Tamiris Abait
; Patrocínio, Ana Cristina Lagoeiro do
; Carvalho, Andréa de
; Sousa, Eduvirgens Maria Couto de
; Sousa, Ancelmo Honorato Ferraz de
; Malheiro, Daniel Tavares
; Bezerra, Isabella Lott
; Rodrigues, Mirian Batista
; Malicia, Julliana Chicuta
; Silva, Sabrina Souza da
; Gimenes, Bruna dos Passos
; Sesin, Guilhermo Prates
; Zavascki, Alexandre Prehn
; Sganzerla, Daniel
; Medeiros, Gregory Saraiva
; Santos, Rosa da Rosa Minho dos
; Silva, Fernanda Kelly Romeiro
; Cheno, Maysa Yukari
; Abrahão, Carolinne Ferreira
; Oliveira Junior, Haliton Alves de
; Rocha, Leonardo Lima
; Nunes Neto, Pedro Aniceto
; Pereira, Valéria Chagas
; Paciência, Luis Eduardo Miranda
; Bueno, Elaine Silva
; Caser, Eliana Bernadete
; Ribeiro, Larissa Zuqui
; Fernandes, Caio Cesar Ferreira
; Garcia, Juliana Mazzei
; Silva, Vanildes de Fátima Fernandes
; Santos, Alisson Junior dos
; Machado, Flávia Ribeiro
; Souza, Maria Aparecida de
; Ferronato, Bianca Ramos
; Urbano, Hugo Corrêa de Andrade
; Moreira, Danielle Conceição Aparecida
; Souza-Dantas, Vicente Cés de
; Duarte, Diego Meireles
; Coelho, Juliana
; Figueiredo, Rodrigo Cruvinel
; Foreque, Fernanda
; Romano, Thiago Gomes
; Cubos, Daniel
; Spirale, Vladimir Miguel
; Nogueira, Roberta Schiavon
; Maia, Israel Silva
; Zandonai, Cassio Luis
; Lovato, Wilson José
; Cerantola, Rodrigo Barbosa
; Toledo, Tatiana Gozzi Pancev
; Tomba, Pablo Oscar
; Almeida, Joyce Ramos de
; Sanches, Luciana Coelho
; Pierini, Leticia
; Cunha, Mariana
; Sousa, Michelle Tereza
; Azevedo, Bruna
; Dal-Pizzol, Felipe
; Damasio, Danusa de Castro
; Bainy, Marina Peres
; Beduhn, Dagoberta Alves Vieira
; Jatobá, Joana D’Arc Vila Nova
; Moura, Maria Tereza Farias de
; Rego, Leila Rezegue de Moraes
; Silva, Adria Vanessa da
; Oliveira, Luana Pontes
; Sodré Filho, Eliene Sá
; Santos, Silvana Soares dos
; Neves, Itallo de Lima
; Leão, Vanessa Cristina de Aquino
; Paes, João Lucidio Lobato
; Silva, Marielle Cristina Mendes
; Oliveira, Cláudio Dornas de
; Santiago, Raquel Caldeira Brant
; Paranhos, Jorge Luiz da Rocha
; Wiermann, Iany Grinezia da Silva
; Pedroso, Durval Ferreira Fonseca
; Sawada, Priscilla Yoshiko
; Prestes, Rejane Martins
; Nascimento, Glícia Cardoso
; Grion, Cintia Magalhães Carvalho
; Carrilho, Claudia Maria Dantas de Maio
; Dantas, Roberta Lacerda Almeida de Miranda
; Silva, Eliane Pereira
; Silva, Antônio Carlos da
; Oliveira, Sheila Mara Bezerra de
; Golin, Nicole Alberti
; Tregnago, Rogerio
; Lima, Valéria Paes
; Silva, Kamilla Grasielle Nunes da
; Boschi, Emerson
; Buffon, Viviane
; Machado, André Sant’Ana
; Capeletti, Leticia
; Foernges, Rafael Botelho
; Carvalho, Andréia Schubert de
; Oliveira Junior, Lúcio Couto de
; Oliveira, Daniela Cunha de
; Silva, Everton Macêdo
; Ribeiro, Julival
; Pereira, Francielle Constantino
; Salgado, Fernanda Borges
; Deutschendorf, Caroline
; Silva, Cristofer Farias da
; Gobatto, Andre Luiz Nunes
; Oliveira, Carolaine Bomfim de
; Dracoulakis, Marianna Deway Andrade
; Alvaia, Natália Oliveira Santos
; Souza, Roberta Machado de
; Araújo, Larissa Liz Cardoso de
; Melo, Rodrigo Morel Vieira de
; Passos, Luiz Carlos Santana
; Vidal, Claudia Fernanda de Lacerda
; Rodrigues, Fernanda Lopes de Albuquerque
; Kurtz, Pedro
; Shinotsuka, Cássia Righy
; Tavares, Maria Brandão
; Santana, Igor das Virgens
; Gavinho, Luciana Macedo da Silva
; Nascimento, Alaís Brito
; Pereira, Adriano J
; Cavalcanti, Alexandre Biasi
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Revista Brasileira de Terapia Intensiva
- Métricas do periódico
ABSTRACT Objective: To describe the IMPACTO-MR, a Brazilian nationwide intensive care unit platform study focused on the impact of health care-associated infections due to multidrug-resistant bacteria. Methods: We described the IMPACTO-MR platform, its development, criteria for intensive care unit selection, characterization of core data collection, objectives, and future research projects to be held within the platform. Results: The core data were collected using the Epimed Monitor System® and consisted of demographic data, comorbidity data, functional status, clinical scores, admission diagnosis and secondary diagnoses, laboratory, clinical, and microbiological data, and organ support during intensive care unit stay, among others. From October 2019 to December 2020, 33,983 patients from 51 intensive care units were included in the core database. Conclusion: The IMPACTO-MR platform is a nationwide Brazilian intensive care unit clinical database focused on researching the impact of health care-associated infections due to multidrug-resistant bacteria. This platform provides data for individual intensive care unit development and research and multicenter observational and prospective trials.
RESUMO Objetivo: Descrever o IMPACTO-MR, um estudo brasileiro de plataforma nacional em unidades de terapia intensiva focado no impacto das infecções por bactérias multirresistentes relacionadas à assistência à saúde. Métodos: Descrevemos a plataforma IMPACTO-MR, seu desenvolvimento, critérios para seleção das unidades de terapia intensiva, caracterização da coleta de dados, objetivos e projetos de pesquisa futuros a serem realizados na plataforma. Resultados: Os dados principais foram coletados por meio do Epimed Monitor System® e consistiram em dados demográficos, dados de comorbidades, estado funcional, escores clínicos, diagnóstico de internação e diagnósticos secundários, dados laboratoriais, clínicos e microbiológicos e suporte de órgãos durante a internação na unidade de terapia intensiva, entre outros. De outubro de 2019 a dezembro de 2020, 33.983 pacientes de 51 unidades de terapia intensiva foram incluídos no banco de dados principal. Conclusão: A plataforma IMPACTO-MR é um banco de dados clínico brasileiro de unidades de terapia intensiva focado na pesquisa do impacto das infecções por bactérias multirresistentes relacionadas à assistência à saúde. Essa plataforma fornece dados para o desenvolvimento e pesquisa de unidades de terapia intensiva individuais e ensaios clínicos observacionais e prospectivos multicêntricos.
4.
Métodos para avaliação da efetividade de vacinas para COVID-19 com ênfase em abordagens quase-experimentais
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Pescarini, Julia Moreira
; Teixeira, Camila Silveira Silva
; Cruz, Enny Paixão
; Ortelan, Naia
; Pinto, Priscila Fernanda Porto Scaff
; Ferreira, Andrêa Jacqueline Fortes
; Alves, Flavia Jôse Oliveira
; Pinto Junior, Elzo Pereira
; Falcão, Ila Rocha
; Rocha, Aline dos Santos
; Silva, Nivea Bispo da
; Ortiz, Renzo Flores
; Saavedra, Ramon da Costa
; Oliveira, Vinicius de Araújo
; Ribeiro-Silva, Rita de Cássia
; Ichihara, Maria Yury Travassos
; Boaventura, Viviane
; Barral Netto, Manoel
; Kerr, Ligia Regina Franco Sansigolo
; Werneck, Guilherme Loureiro
; Barreto, Mauricio L.
.
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Resumo A avalição da efetividade de vacinas é feita com dados do mundo real e é essencial para monitorar o desempenho dos programas de vacinação ao longo do tempo bem como frente a novas variantes. Até o momento, a avaliação da efetividade das vacinas para COVID-19 tem sido baseada em métodos clássicos como estudos de coorte e caso controle teste-negativo, que muitas vezes podem não permitir o adequado controle dos vieses intrínsecos da alocação das campanhas de vacinação. O objetivo dessa revisão foi discutir os desenhos de estudo disponíveis para avaliação de efetividade das vacinas, enfatizando os estudos quase-experimentais, que buscam mimetizar os estudos aleatorizados ao introduzir um componente exógeno para atribuição ao tratamento, bem como suas vantagens, limitações e aplicabilidade no contexto dos dados brasileiros. O emprego de métodos quase-experimentais, incluindo as séries temporais interrompidas, o método de diferença em diferenças, escore de propensão, variáveis instrumentais e regressão descontínua, são relevantes pela possibilidade de gerar estimativas mais acuradas da efetividade de vacinas para COVID-19 em cenários como o brasileiro, que se caracteriza pelo uso de várias vacinas, com respectivos número e intervalos entre doses, aplicadas em diferentes faixas etárias e em diferentes momentos da pandemia.
Abstract The evaluation of vaccine effectiveness is conducted with real-world data. They are essential to monitor the performance of vaccination programmes over time, and in the context of the emergence of new variants. Until now, the effectiveness of COVID-19 vaccines has been assessed based on classic methods, such as cohort and test-negative case-control studies, which may often not allow for adequate control of inherent biases in the assignment of vaccination campaigns. The aim of this review was to discuss the study designs available to evaluate vaccine effectiveness, highlighting quasi-experimental studies, which seek to mimic randomized trials, by introducing an exogenous component to allocate to treatment, in addition to the advantages, limitations, and applicability in the context of Brazilian data. The use of quasi-experimental approaches, such as interrupted time series, difference-in-differences, propensity scores, instrumental variables, and regression discontinuity design, are relevant due to the possibility of providing more accurate estimates of COVID-19 vaccine effectiveness. This is especially important in scenarios such as the Brazilian, which characterized by the use of various vaccines, with the respective numbers and intervals between doses, applied to different age groups, and introduced at different times during the pandemic.
5.
Métodos para avaliação da efetividade de vacinas para COVID-19 com ênfase em abordagens quase-experimentais
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Pescarini, Julia Moreira
; Teixeira, Camila Silveira Silva
; Cruz, Enny Paixão
; Ortelan, Naia
; Pinto, Priscila Fernanda Porto Scaff
; Ferreira, Andrêa Jacqueline Fortes
; Alves, Flavia Jôse Oliveira
; Pinto Junior, Elzo Pereira
; Falcão, Ila Rocha
; Rocha, Aline dos Santos
; Silva, Nivea Bispo da
; Ortiz, Renzo Flores
; Saavedra, Ramon da Costa
; Oliveira, Vinicius de Araújo
; Ribeiro-Silva, Rita de Cássia
; Ichihara, Maria Yury Travassos
; Boaventura, Viviane
; Barral Netto, Manoel
; Kerr, Ligia Regina Franco Sansigolo
; Werneck, Guilherme Loureiro
; Barreto, Mauricio L.
.
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Resumo A avalição da efetividade de vacinas é feita com dados do mundo real e é essencial para monitorar o desempenho dos programas de vacinação ao longo do tempo bem como frente a novas variantes. Até o momento, a avaliação da efetividade das vacinas para COVID-19 tem sido baseada em métodos clássicos como estudos de coorte e caso controle teste-negativo, que muitas vezes podem não permitir o adequado controle dos vieses intrínsecos da alocação das campanhas de vacinação. O objetivo dessa revisão foi discutir os desenhos de estudo disponíveis para avaliação de efetividade das vacinas, enfatizando os estudos quase-experimentais, que buscam mimetizar os estudos aleatorizados ao introduzir um componente exógeno para atribuição ao tratamento, bem como suas vantagens, limitações e aplicabilidade no contexto dos dados brasileiros. O emprego de métodos quase-experimentais, incluindo as séries temporais interrompidas, o método de diferença em diferenças, escore de propensão, variáveis instrumentais e regressão descontínua, são relevantes pela possibilidade de gerar estimativas mais acuradas da efetividade de vacinas para COVID-19 em cenários como o brasileiro, que se caracteriza pelo uso de várias vacinas, com respectivos número e intervalos entre doses, aplicadas em diferentes faixas etárias e em diferentes momentos da pandemia.
Abstract The evaluation of vaccine effectiveness is conducted with real-world data. They are essential to monitor the performance of vaccination programmes over time, and in the context of the emergence of new variants. Until now, the effectiveness of COVID-19 vaccines has been assessed based on classic methods, such as cohort and test-negative case-control studies, which may often not allow for adequate control of inherent biases in the assignment of vaccination campaigns. The aim of this review was to discuss the study designs available to evaluate vaccine effectiveness, highlighting quasi-experimental studies, which seek to mimic randomized trials, by introducing an exogenous component to allocate to treatment, in addition to the advantages, limitations, and applicability in the context of Brazilian data. The use of quasi-experimental approaches, such as interrupted time series, difference-in-differences, propensity scores, instrumental variables, and regression discontinuity design, are relevant due to the possibility of providing more accurate estimates of COVID-19 vaccine effectiveness. This is especially important in scenarios such as the Brazilian, which characterized by the use of various vaccines, with the respective numbers and intervals between doses, applied to different age groups, and introduced at different times during the pandemic.
6.
Avaliação da nasalidade de fala na fissura labiopalatina
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Padilha, Edna Zakrzevski
; Dutka, Jeniffer de Cássia Rillo
; Marino, Viviane Cristina de Castro
; Lauris, José Roberto Pereira
; Silva, Mariana Jales Felix da
; Pegoraro-Krook, Maria Inês
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Objetivo Descrever os resultados da nasalidade de fala de indivíduos com fissura labiopalatina e comparar os achados de nasalidade estabelecidos por meio do julgamento perceptivo-auditivo realizado ao vivo com os achados estabelecidos por análise de gravações por juízes, em dois tipos de amostras de fala. Métodos O estudo envolveu a análise retrospectiva dos resultados de avaliações perceptivo-auditivas da nasalidade de fala realizadas ao vivo por uma fonoaudióloga e o julgamento prospectivo, por consenso de juízas de 100 gravações de amostras de fala, obtidas durante a produção de dois conjuntos de estímulos de fala: um com consoantes de alta pressão (CAP, n=100) e outro com consoantes de baixa pressão (CBP, n=100). Os dados pertenciam a pacientes de ambos os gêneros, com idades entre 5 e 12 anos, que tiveram a fissura labiopalatina operada por um mesmo cirurgião. Resultados A ausência de hipernasalidade foi constatada em 69% dos julgamentos ao vivo. Quando presente, a hipernasalidade leve foi constatada em 23% dos casos, enquanto a hipernasalidade moderada em 8%. Para os julgamentos das amostras gravadas, 50% foram identificadas com hipernasalidade durante a produção das amostras CAP e 62% durante a das amostras CBP. Diferença significativa foi encontrada entre o resultado do julgamento ao vivo e o julgamento pelas juízas nas amostras CAP. A concordância entre as modalidades de avaliação variou de 79% para as amostras CAP e 80% para as amostras CBP, sendo considerada moderada. Conclusão O julgamento perceptivo ao vivo da nasalidade de fala pode detectar melhor a ausência de hipernasalidade, seguida pela hipernasalidade de grau leve, em comparação com o julgamento realizado por juízes múltiplos, a partir de amostras gravadas. Contudo, tem a desvantagem de os dados não poderem ser reproduzidos, nem quantificados, nem compartilhados por outros membros da equipe.
Purpose To describe the results of speech nasality of individuals with cleft lip and palate, and to compare auditory-perceptual judgments of nasality between live ratings and multiple judges ratings of recorded speech, for two sets of speech stimuli. Methods The study involved the retrospective analysis of the results of auditory-perceptual assessments of speech nasality performed live by a single speech-language pathologist and a prospective judgment of 100 recordings of speech samples obtained during production of two sets of speech stimuli: one with high pressure consonants (HPC, n=100) and another with low pressure consonants (LPC, n=100). The data belonged to patients, of both genders, with ages between 5 and 12 years, with cleft lip and palate operated by the same surgeon. Results The absence of hypernasality was found for 69% of the patients during live assessment. When present, mild hypernasality was found for 23% and moderate for 8% of the patients. For judge ratings of recorded samples, 50% was identified as hypernasal during production of samples with high pressure consonants, and 62% for the samples with low pressure consonants. A statistically significant difference was found between the live perceptual judgments and judges’ ratings of the recorded samples only for the stimuli with high pressure consonants. The agreement between the methods of assessment was 79% for HPC samples and 80% for LPC samples, within the moderate range. Conclusion Live perceptual judgment of speech nasality revealed higher occurrence of absence of hypernasality followed by presence of mild hypernasality, when compared to multiple judges of recorded samples. The live clinical assessment of speech, however, has the disadvantage that the data may not be reproduced, quantified or shared by other team members.
https://doi.org/10.1590/S2317-64312015000100001444
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7.
ATIVIDADE FITOTÓXICA DE CASCAS DO CAULE E FOLHAS DE Blepharocalyx salicifolius (MYRTACEAE) SOBRE ESPÉCIES INFESTANTES
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HABERMANN, Eduardo
; IMATOMI, Maristela
; De Cassia PEREIRA, Viviane
; Cevithereza PONTES, Flávia
; Juliano GUALTIERI, Sonia Cristina
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RESUMEN En este estudio se evaluó la fitotoxicidad de los extractos y fracciones de las cortezas del tallo (suber) y de las hojas maduras de Blepharocalyx salicifolius Kuth O. Berg sobre el crecimiento inicial de Echinochloa crus- galli L. P. Beauv. (capim-arroz) y Euphorbia heterophylla L. (amendoim-bravo). Estos extractos fueron obtenidos por extracción exhaustiva y fraccionamiento por coeficiente de partición con disolventes orgánicos. Posteriormente los extractos de acetato de etilo de las hojas y de la corteza del tallo (suber) fueron fraccionados por cromatografía de columna con disolventes de polaridad creciente. Tanto los extractos como las fracciones se ensayaron sobre las plantas diana en concentraciones de 0,2, 0,4 y 0,8 mg.mL-1, como control positivo se utilizó el herbicida comercial Sanson® disuelto en las mismas condiciones y como control negativo agua destilada con DMSO (5uL/mL). Los extractos de acetato de etilo de hojas maduras y corteza así como el extracto de hexano de la corteza mostraron los efectos inhibitorios más pronunciados sobre el crecimiento de las especies diana. De las ocho fracciones del extracto de acetato de etilo de hojas, seis inhibieron el crecimiento de las raíces de capim-arroz y cuatro fracciones inhibieron el crecimiento de las raíces y de la parte aérea de amendoin-bravo en todas las concentraciones ensayadas. De las seis fracciones del extracto de acetato de etilo de corteza, cuatro fueron fitotóxicos sobre el crecimiento de la raíz de capim-arroz en todas las concentraciones. Los extractos y fracciones de la corteza y de las hojas maduras provocaron anomalías en las especies diana. Estos resultados demostraron un efecto fitotóxico pronunciado de los extractos y fracciones de corteza y hojas maduras y su potencial uso como herbicidas naturales.
In this study, the phytotoxicity of extracts and fractions of stem bark (suber) and mature leaves of Blepharocalyx salicifolius Kuth O. Berg was evaluated on the initial growth of Echinochloa crus- galli L. P. Beauv. (barnyardgrass) and Euphorbia heterophylla L. (wild poinsettia). The extracts were obtained by exhaustive extraction and fractionation by the partition coefficient with organic solvents. Subsequently, the ethyl acetate extracts of bark and mature leaves and the hexane extract of bark were fractionated by column chromatography with solvents in increasing order of polarity. The extracts and fractions were evaluated on weed species at concentrations of 0,2, 0,4 and 0,8 mg.mL-1, The positive control used was the commercial herbicide Sanson® at the same concentrations described and the negative control used was distilled water with DMSO (5 uL/mL). The ethyl acetate extracts of bark and mature leaves and hexane extract of bark showed the most pronounced inhibitory effects on the growth of the target species. Among the eight ethylic acetate leave's fractions, six inhibited the root growth of barnyardgrass at all concentrations tested and four fractions inhibited the root and shoot growth of wild poinsettia, at all concentrations tested. Of the six ethylic acetate bark's fractions, four showed phytotoxicity on root growth of barnyardgrass at all concentrations. The extracts and fractions of bark and mature leaves have given rise to anomalies in the target species. The results demonstrated a pronounced phytotoxic effect of the extracts and fractions of bark and mature leaves, providing subsidies for their use as natural herbicides.
No presente estudo foi avaliada a fitotoxicidade de extratos e frações de cascas do caule (súber) e folhas maduras de Blepharocalyx salicifolius Kuth O. Berg sobre o crescimento inicial de Echinochloa crus-galli L. P. Beauv. (capim-arroz) e Euphorbia heterophylla L. (amendoim-bravo). Os extratos foram obtidos por meio de extração exaustiva e fracionamento por coeficiente de partição com solventes orgânicos. Posteriormente, os extratos acetato etílicos de cascas e folhas maduras e o extrato hexânico de cascas foram fracionados por cromatografia em coluna com a utilização de solventes em ordem crescente de polaridade. Os extratos e as frações foram testados sobre as espécies infestantes nas concentrações de 0,2, 0,4 e 0,8 mg.mL-1, como controle positivo foi utilizado o herbicida comercial Sanson® nas mesmas concentrações descritas e como controle negativo água destilada com DMSO (5 uL/mL). Os extratos acetato etílicos de cascas e folhas maduras, assim como o extrato hexânico de cascas apresentaram efeitos pronunciados de inibição sobre o crescimento das espécies-alvo. Das oito frações acetato etílicas de folhas, seis inibiram o crescimento das raízes de capim-arroz e quatro inibiram o crescimento das raízes e parte aérea de amendoim-bravo em todas as concentrações testadas. Das seis frações acetato etílicas de cascas, quatro apresentaram fitotoxicidade sobre o crescimento das raízes de capim-arroz em todas as concentrações. Os extratos e frações de cascas e folhas maduras levaram ao surgimento de anomalias nas espécies-alvo. Estes resultados evidenciaram o acentuado efeito fitotóxico dos extratos e frações de cascas e folhas maduras e seu potencial uso como herbicida natural.
https://doi.org/10.15446/abc.v20n1.42756
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8.
ALLELOPATHIC POTENTIAL OF Serjania lethalis: EVIDENCE FROM Sesamum indicum
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De Cassia PEREIRA, Viviane
; ANESE, Simoni
; IMATOMI, Maristela
; Umeda GRISI, Patrícia
; MONTE CANEDO, Enzo
; JULIANO GUALTIERI, Sonia Cristina
; RODRIGUES-FILHO, Edson
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El efecto de fracciones de extractos etanólicos de hojas jóvenes (y) y maduras (m) de Serjania lethalis A. St - Hil (Sapindaceae) fueron probados sobre el crecimiento de las plántulas y células de metaxilema de sésamo (Sesamum indicum L.). Los extractos etanólicos fueron preparados a partir del polvo de hojas jóvenes y maduras de S. lethalis y fraccionados por cromatografía en columna. Para el bioensayo de crecimiento de las plántulas germinadas se utilizaron semillas de sésamo y se mantuvo en contacto con las fracciones (F) en concentraciones de 0,8 , 0,4 y 0,2 mg mL-1. Después de siete días se midió la longitud del tallo principal y raíz. El bioensayo de crecimiento celular do metaxilema se realizó utilizando plántulas de sésamo cultivadas en soluciones que contienen fracciones en las mismas concentraciones. Los resultados indican que las fracciones ensayadas (Fy2 ; Fy3 ;Fy5 y Fm1) mostraron actividad en el crecimiento de las plántulas al interferir principalmente en crecimiento de la raíz. La fracción Fy5 mostró actividad similar a la causada por la actividad herbicida Oxyfluorofen. La misma fracción produjo la mayor inhibición del crecimiento celular de las raíces del metaxilema de sésamo a una concentración de 0,8 mg mL- 1. A partir del análisis de los resultados se concluyó que las fracciones de extracto etanolico de las hojas jóvenes son prometedoras fuentes de sustancias con propiedades fitotoxicas.
This study was designed to test the effect of different fractions of ethanolic extracts of young (y) and mature (m) leaves of Serjania lethalis A. St- Hil (Sapindaceae) on sesame (Sesamum indicum L.) seedling growth and metaxylem cells. Crude ethanolic extracts were prepared from the powder of young and mature S. lethalis leaves and fractionated by means of column chromatography. For the seedling growth bioassay, sesame seeds germinated at concentrations of 0.8, 0.4 and 0.2 mg mL-1 were used. After seven days, the lengths of the aerial part and of the primary root were measured. The sesame metaxylem cell growth bioassay was performed with seedlings grown in solutions containing the different fractions in the same concentrations as above. The tested fractions (Fy2; Fy3; Fy5 e Fm1) showed inhibitory activity on seedling growth, interfering mainly in root growth. The fraction Fy5 showed similar activity to the one caused by the herbicide Oxyfluorfen. This fraction was also responsible for causing the greatest inhibition of metaxylem cell growth in sesame roots at the concentration 0.8 mg mL-1. The results permitted to conclude that the different fractions found in the ethanolic extract of S. lethalis young leaves are promising sources of substances with phytotoxic properties.
https://doi.org/10.15446/abc.v20n1.41661
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Growing knowledge: an overview of Seed Plant diversity in Brazil
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Zappi, Daniela C.
; Filardi, Fabiana L. Ranzato
; Leitman, Paula
; Souza, Vinícius C.
; Walter, Bruno M.T.
; Pirani, José R.
; Morim, Marli P.
; Queiroz, Luciano P.
; Cavalcanti, Taciana B.
; Mansano, Vidal F.
; Forzza, Rafaela C.
; Abreu, Maria C.
; Acevedo-Rodríguez, Pedro
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; Almeida Jr., Eduardo B.
; Almeida, Gracineide S.S.
; Almeida, Rafael F.
; Alves, Flávio M.
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; Alves-Araujo, Anderson
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; Amorim, André M.
; Amorim, Bruno
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; Andreata, Regina H.P.
; Andrino, Caroline O.
; Anunciação, Elisete A.
; Aona, Lidyanne Y.S.
; Aranguren, Yani
; Aranha Filho, João L.M.
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Resumo Um levantamento atualizado das plantas com sementes e análises relevantes acerca desta biodiversidade são apresentados. Este trabalho se iniciou em 2010 com a publicação do Catálogo de Plantas e Fungos e, desde então vem sendo atualizado por mais de 430 especialistas trabalhando online. O Brasil abriga atualmente 32.086 espécies nativas de Angiospermas e 23 espécies nativas de Gimnospermas e estes novos dados mostram um aumento de 3% da riqueza em relação a 2010. A Amazônia é o Domínio Fitogeográfico com o maior número de espécies de Gimnospermas, enquanto que a Floresta Atlântica possui a maior riqueza de Angiospermas. Houve um crescimento considerável no número de espécies e nas taxas de endemismo para a maioria dos Domínios (Caatinga, Cerrado, Floresta Atlântica, Pampa e Pantanal), com exceção da Amazônia que apresentou uma diminuição de 2,5% de endemicidade. Entretanto, a maior parte das plantas com sementes que ocorrem no Brasil (57,4%) é endêmica deste território. A proporção de formas de vida varia de acordo com os diferentes Domínios: árvores são mais expressivas na Amazônia e Floresta Atlântica do que nos outros biomas, ervas são dominantes no Pampa e as lianas apresentam riqueza expressiva na Amazônia, Floresta Atlântica e Pantanal. Este trabalho não só quantifica a biodiversidade brasileira, mas também indica as lacunas de conhecimento e o desafio a ser enfrentado para a conservação desta flora.
Abstract An updated inventory of Brazilian seed plants is presented and offers important insights into the country's biodiversity. This work started in 2010, with the publication of the Plants and Fungi Catalogue, and has been updated since by more than 430 specialists working online. Brazil is home to 32,086 native Angiosperms and 23 native Gymnosperms, showing an increase of 3% in its species richness in relation to 2010. The Amazon Rainforest is the richest Brazilian biome for Gymnosperms, while the Atlantic Rainforest is the richest one for Angiosperms. There was a considerable increment in the number of species and endemism rates for biomes, except for the Amazon that showed a decrease of 2.5% of recorded endemics. However, well over half of Brazillian seed plant species (57.4%) is endemic to this territory. The proportion of life-forms varies among different biomes: trees are more expressive in the Amazon and Atlantic Rainforest biomes while herbs predominate in the Pampa, and lianas are more expressive in the Amazon, Atlantic Rainforest, and Pantanal. This compilation serves not only to quantify Brazilian biodiversity, but also to highlight areas where there information is lacking and to provide a framework for the challenge faced in conserving Brazil's unique and diverse flora.
https://doi.org/10.1590/2175-7860201566411
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10.
Nasalance during use of pharyngeal and glottal place of production
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Garcia, Ariany Fernanda
; Castro Marino, Viviane Cristina de
; Pegoraro-Krook, Maria Inês
; Guerra, Thais Alves
; Pereira Lauris, José Roberto
; Rillo Dutka, Jeniffer de Cassia
.
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Objetivo:Este estudo obteve medidas de nasalância durante a produção de articulação compensatória (AC) e comparou a nasalância entre grupos com e sem hipernasalidade e com e sem AC.Métodos:As amostras de fala foram obtidas a partir de 43 indivíduos com e sem disfunção velofaríngea durante a repetição de 20 frases, originando um total de 860 gravações e respectivos valores nasométricos. Foram excluídas 143 gravações devido à baixa qualidade e as 717 amostras restantes foram avaliadas por três fonoaudiólogas, de forma independente, quanto à presença ou ausência de hipernasalidade e AC. As 553 amostras julgadas com 100% de concordância entre as fonoaudiólogas foram agrupadas de acordo com o julgamento perceptivo-auditivo: Grupo 1 (G1) - amostras sem hipernasalidade e sem AC (n=191); Grupo 2 (G2) - amostras com hipernasalidade e sem AC (n=288); Grupo 3 (G3) - amostras com hipernasalidade e com fricativa faríngea (n=33); Grupo 4 (G4) - amostras com hipernasalidade e com oclusiva glotal (n=41).Resultados:Análise de variância (ANOVA) revelou medidas de nasalância significativamente maiores para G2, G3 e G4 (p<0,0001) quando comparados ao G1. O uso de fricativa faríngea (G3), particularmente durante /f/ (p=0,0018) e /s/ (p=0,0017) resultou em valores de nasalância significativamente maiores que os valores encontrados para G2.Conclusão:Valores de nasalância significativamente mais elevados foram encontrados durante produção de fricativa faríngea.
Purpose:This study obtained nasalance scores during use of compensatory articulation (CA) and compared nasalance between groups with and without hypernasality and with and without CA.Methods:Speech samples were obtained from 43 individuals with and without velopharyngeal dysfunction during repetition of 20 phrases originating 860 audio recordings and their respective nasometric values. After excluding 143 recordings due to low quality, the remaining 717 samples were rated by three speech language pathologists (SLPs), independently, for presence or absence of hypernasality and CA. Nasalance scores for the 553 samples rated with 100% agreement among the SLPs were grouped according to the auditory-perceptual ratings: Group 1 (G1) - included samples without hypernasality and without CA (n=191); Group2 (G2) - included samples with hypernasality and without CA (n=288); Group 3 (G3) - included samples with hypernasality and with pharyngeal fricative (n=33); Group 4 (G4) - included samples with hypernasality and with glottal stop (n=41).Results:Analysis of variance (ANOVA) revealed significant difference nasalance scores which were significantly higher for G2, G3, and G4 (p<0.0001) when compared to G1. The use of pharyngeal fricative (G3), particularly during /f/ (p=0.0018) and /s/ (p=0.0017) productions resulted in nasalance scores significantly higher than scores found for G2.Conclusion:Significantly higher nasalance values where identified during use of pharyngeal fricative.
https://doi.org/10.1590/2317-1782/20142014071
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11.
Larvicidal activity of the methanol extract and fractions of the green fruits of Solanum lycocarpum(Solanaceae) against the vector Culex quinquefasciatus (Diptera: Culicidae)
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Pereira, Thamer Matias
; Silva, Viviane de Cássia Bicalho
; Ribeiro Neto, José Antônio
; Alves, Stênio Nunes
; Lima, Luciana Alves Rodrigues dos Santos
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Revista da Sociedade Brasileira de Medicina Tropical
- Métricas do periódico
IntroductionThe larvicidal activity of Solanum lycocarpumagainst Culex quinquefasciatus is unknown.MethodsWe evaluated the larvicidal activity of extracts of the green fruits of Solanum lycocarpum against third and fourth instar larvae of C. quinquefasciatus.ResultsDichloromethane and ethyl acetate fractions showed the greatest larvicidal effect at 200mg/L (83.3% and 86.7%, respectively). The methanol and dichloromethane, ethyl acetate, and hydromethanolic fractions demonstrated larvicidal effects against C. quinquefasciatus, with LC50 values of 126.24, 75.13, 83.15, and 207.05mg/L, respectively.ConclusionsThus, when considering new drugs with larvicidal activity from natural products, S. lycocarpum fruits may be good candidate sources.
https://doi.org/10.1590/0037-8682-0010-2014
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12.
Seasonal variation in phytotoxicity of Drimys brasiliensis Miers
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Anese, Simoni
; Umeda Grisi, Patrícia
; de Jesus Jatobá, Luciana
; Imatomi, Maristela
; de Cassia Pereira, Viviane
; Juliano Gualtieri, Sonia Cristina
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Drimys brasiliensis Miers (Winteraceae), commonly called casca d'anta, is found in the Atlantic Forest and in Cerrado domain. It is considered an important source of natural compounds with pharmacological properties, however little is known about their phytotoxic potential on other plants. This study aims to evaluate the phytotoxic effects of D. brasiliensis leaf extracts collected in two seasons (dry and rainy) on the germination and seedling growth of Sesamum indicum L., as well as evaluating the effect of the most active extract on metaxylem cell size in the roots of the target species. The aqueous extract was prepared with 10 g of dried, ground leaves dissolved in 100 mL of distilled water, resulting in a 10% extract concentrate. Dilutions were made with distilled water to 7.5; 5.0; 2.5% and 0% (control). The leaf extracts showed phytotoxicity on germination and early growth of sesame, with more pronounced activity in leaves collected in the dry season. The inhibitory effects were observed at the cellular level in sesame roots, with a significant reduction in the size of the metaxylem cells in the presence of all concentrations of leaf extract. The extract from leaves of D. brasiliensis may constitute a promising source in the search for natural phytotoxins for use in sustainable agriculture practices.
Drimys brasiliensis Miers (Winteraceae), conocida popularmente como "casca-de-anta", se encuentra en formaciones de la Mata Atlántica y del Cerrado en Brasil. Se la considera una importante fuente de compuestos naturales con propiedades farmacológicas, aunque poco se sepa sobre su potencial fitotóxico sobre otras plantas. El objetivo de este trabajo fue evaluar el efecto fitotóxico de hojas de Drimys brasiliensis Miers colectadas en dos estaciones del año (estación seca y húmeda) sobre la germinación y crecimiento de Sesamum indicum L. (sésamo). Además se evaluó el efecto del extracto más activo sobre el tamaño medio de las células del metaxilema de las raíces de sésamo destinataria. El extracto acuoso fue preparado en proporción de 10 g de material vegetal (polvo) para 100 mL de agua destilada, logrando la concentración de 10%. Desde esta concentración inicial, fueron preparadas diluciones en agua destilada para concentraciones de 7.5; 5.0; 2.5% y 0% (control). Los extractos de hojas de D. brasiliensis presentaron fitotoxicidad sobre todos los parámetros de germinación y crecimiento inicial del sésamo, con actividad más evidente de las hojas colectadas al final de la estación seca. El efecto inhibitorio pudo ser observado en nivel celular en las raíces del sésamo, con reducción significativa en el tamaño medio de las células del metaxilema en la presencia de todas las concentraciones del extracto foliar. El extracto de las hojas de D. brasiliensis puede constituir una fuente prometedora en la búsqueda de fitotoxinas naturales para utilización en prácticas de agricultura sostenible.
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13.
Profile of milk fatty acids from moxotó goats fed with different levels of manicoba (Manihot Glaziovii Muel Arg.) silage
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Mesquita, Ítala Viviane Ubaldo
; Costa, Roberto Germano
; Queiroga, Rita de Cássia Ramos do Egypto
; Medeiros, Ariosvaldo Nunes de
; Schuler, Alexandre Ricardo Pereira
.
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Brazilian Archives of Biology and Technology
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O objetivo deste trabalho foi avaliar os efeitos da utilização de silagem de maniçoba (Manihot glaziovii Muel Arg.) em diferentes relações volumoso:concentrado (30:70; 40:60; 50:50 e 60:40 %) no perfil de ácidos graxos do leite de cabras da raça Moxotó. Foram utilizadas oito cabras multíparas com aproximadamente 60 dias pós-parto, pesando em média 44 kg, em um Quadrado Latino duplo 4 x 4, com quatro tratamentos, quatro períodos e quatro animais. Cada período teve duração de 15 dias, com 10 de adaptação às dietas experimentais e cinco dias de colheita de leite. Foi verificado efeito linear crescente do ácido mirístico (C14:0) e decrescente para o ácido linolênico (C18:3), em função dos níveis de silagem da dieta. A gordura do leite apresentou elevado teor de ácidos graxos desejáveis (C18:0 + insaturados), considerados importantes nutricionalmente pelos seus benefícios à saúde humana.
The objective of this work was to evaluate the effects of the manicoba silage use (Manihot glaziovii Muel Arg.) in different roughage:concentrate ratios (30:70; 40:60; 50:50 and 60:40 %) on the fatty acids profile of the milk from Moxotó goats. Eight multiparous goats with approximately 60 post-birth days and weigh 44 kg on average were used in a Double Latin Square with four treatments, four periods and four animals. Each period lasted 15 days with 10 days of adaptation to experimental diets and 5 days of milk collection. The results of the fatty acids analyses were submitted to the analysis of variance (ANOVA) and regression. An increasing linear effect for the miristic acid (C14:0) and decreasing for the linoleic acid (C18:3) was observed in function of the silage levels in diet. The milk fat presented high contents of desirable fatty acids (C18:0 + unsaturated acids), considered as nutritionally important due to their benefits to the human health. It could be concluded that the manicoba silage could be included in the diet with the participation of up to 60%, presenting a nutrient supply of high nutritional value.
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