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Neuroplasticity in autism spectrum disorder: a systematic review
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Laguna, Gabriela Garcia de Carvalho

; Gusmão, Ana Beatriz Ferreira

; Marques, Breno Oliveira

; Bragas, Níkolas Brayan da Silva

; Rodrigues, Isadora Bagues

; Melo, Rafaela Souza

; Azevedo, Katiene Rodrigues Menezes de

Dementia & Neuropsychologia

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2025, Volume 19 elocation e20240182

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

RESUMO. A capacidade do cérebro adaptar-se em resposta a estímulos é denominada neuroplasticidade. Objetivo: Este estudo investiga a neuroplasticidade em indivíduos autistas, focando em aspectos neurobiológicos, correlações clínicas e intervenções terapêuticas. Métodos: Esta revisão sistemática, registrada no Prospective Register of Systematic Reviews — PROSPERO (ID: CRD42024522425) e orientada pelos critérios do Preferred Reporting Items for Systematic Reviews and Meta-Analyses — PRISMA (2020), pesquisou em bases de dados como Web of Science, Scopus, Biblioteca Nacional de Medicina dos Estados Unidos/ Sistema Online de Busca e Análise de Literatura Médica (PubMed/Medline), Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS) e Scientific Electronic Library Online (SciELO) por artigos originais publicados em 2018–2023. Resultados: Dos 2.316 estudos encontrados, 11 foram selecionados, envolvendo 1.943 indivíduos autistas, tanto crianças quanto adultos. A maioria dos estudos foi classificada como de alta/moderada qualidade usando as escalas de Newcastle-Ottawa e Jadad. Observações incluíram variações na expressão do gene SHANK2, menores concentrações de α-sinucleína, maiores de β-sinucleína em crianças com transtorno do espectro autista (TEA), correlações entre a expressão de NCAM1 e habilidades motoras, e maior concentração de fator neurotrófico derivado do cérebro (BDNF) em comparação a crianças não autistas. Conclusões: Alterações em SHANK2, α-sinucleína, β-sinucleína, NCAM1 e BDNF no TEA sugerem biomarcadores e alvos terapêuticos para intervenções mais eficazes, aprimorando o cuidado de indivíduos autistas.

ABSTRACT. The brain's ability to adapt in response to stimuli is called neuroplasticity. Objective: This study investigates neuroplasticity in autistic individuals, focusing on neurobiological aspects, clinical correlations, and therapeutic interventions. Methods: This systematic review, registered in the International Prospective Register of Systematic Reviews—PROSPERO (ID: CRD42024522425) and guided by Preferred Reporting Items for Systematic Reviews and Meta-Analyses—PRISMA (2020) criteria, searched databases like Web of Science, Scopus, United States National Library of Medicine/ Medical Literature Analysis and Retrieval System Online (PubMed/Medline), Latin American and Caribbean Health Sciences Literature (LILACS), and Scientific Electronic Library Online (SciELO) for original articles published in 2018–2023. Results: Of the 2,316 studies found, 11 were selected, involving 1,943 autistic individuals, both children and adults. Most studies were classified as high/moderate quality using the Newcastle-Ottawa and Jadad scales. Observations included variations in SHANK2 gene expression, lower concentrations of α-synuclein, higher β-synuclein in children with autism spectrum disorder (ASD), correlations between NCAM1 expression and motor skills, and higher brain-derived neurotrophic factor (BDNF) concentration compared to non-autistic children. Conclusions: Alterations in SHANK2, α-synuclein, β-synuclein, NCAM1, and BDNF in ASD suggest biomarkers and therapeutic targets for more effective interventions, improving care for autistic individuals.

https://doi.org/10.1590/1980-5764-dn-2024-0182

Educational strategies for preventing accidents in childhood: a systematic review
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Laguna, Gabriela Garcia de Carvalho

; Gusmão, Ana Luiza Ferreira

; Marques, Breno Oliveira

; Bragas, Níkolas Brayan da Silva

; Assis, Gabriela Alves de Souza

; Evangelista, Karolaine da Costa

; Silva, Natália Oliveira e

Cadernos de Saúde Pública

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2024, Volume 40 N. 10 elocation e00036224

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

Resumo: Acidentes na infância têm uma alta taxa de morbidade e mortalidade e, muitas vezes, podem ser evitados, o que reforça a importância de medidas educacionais para evitar lesões não intencionais. O objetivo foi identificar e descrever estratégias educacionais úteis para a prevenção de acidentes infantis no contexto da comunidade. Essa revisão sistemática foi orientada pelo PRISMA (2020) e registrada na plataforma PROSPERO (ID: CRD42024500956). Uma estratégia de busca foi desenvolvida combinando os descritores “Accident Prevention” (prevenção de acidentes), “Child” (criança) e “Health Education” (educação em saúde) com o operador booleano AND, aplicado às bases de dados PubMed/MEDLINE, Web of Science, LILACS e SciELO. Foram localizados 5.037 estudos, incluindo artigos observacionais publicados entre 2018-2023, com crianças de 0 a 12 anos e/ou seus pais/cuidadores. A qualidade dos estudos foi avaliada considerando os critérios dos instrumentos Qualitative Studies Checklist e Research Triangle Institute Item Bank. A amostra bibliográfica consistiu em 30 artigos, em sua maioria classificados como de alta qualidade, com uma população de 4.510 adultos e 54.190 crianças de vários países. Foram descritas estratégias educacionais para a prevenção de acidentes, voltadas para pais e responsáveis, crianças e ambos. Esta revisão, que aborda estratégias educacionais inovadoras para a prevenção de acidentes infantis, destaca abordagens lúdicas para crianças e métodos visuais para cuidadores. A implementação enfrenta desafios relacionados à avaliação e a fatores socioeconômicos, tornando critérios rigorosos e acompanhamentos prolongados importantes para a eficácia contínua.

Resumen: Los accidentes en la infancia tienen una alta tasa de morbimortalidad y, muchas veces, son prevenibles, por lo que refuerza la importancia de medidas educativas para prevenir lesiones no intencionales. El objetivo de estudio fue identificar y describir estrategias educativas útiles para la prevención de accidentes en la infancia en el contexto comunitario. Esta revisión sistemática fue guiada por PRISMA (2020) y registrada en la plataforma PROSPERO (ID: CRD42024500956). Se realizó una búsqueda combinando los descriptores “Accident Prevention” (prevención de accidentes), “Child” (niño) y “Health Education” (educación en salud) con el operador booleano AND, aplicado a las bases de datos PubMed/MEDLINE, Web of Science, LILACS y SciELO. Se encontraron 5.037 estudios, que incluye artículos observacionales publicados entre 2018-2023, con niños de 0 a 12 años y/o sus padres/cuidadores. La calidad de los estudios se evaluó considerando los criterios de los instrumentos Qualitative Studies Checklist y Research Triangle Institute Item Bank. La muestra bibliográfica consistió en 30 artículos, en su mayoría clasificados como de alta calidad, realizados con una población de 4.510 adultos y 54.190 niños de varios países. Se describieron estrategias educativas para la prevención de accidentes dirigidas a padres y tutores, niños o ambos. Esta revisión aborda estrategias educativas innovadoras para la prevención de accidentes en la infancia y destaca los enfoques lúdicos para los niños y las técnicas visuales para los cuidadores. La aplicación se enfrenta a desafíos relacionados con la evaluación y los factores socioeconómicos, por lo que los criterios estrictos y los seguimientos prolongados son importantes para mantener su eficacia.

Abstract: Accidents in childhood have a high morbidity and mortality rate and are often preventable, which reinforces the importance of educational measures to prevent unintentional injuries. This study aimed to identify and describe useful educational strategies for preventing childhood accidents in communities. This systematic review was guided by PRISMA (2020) and registered on the PROSPERO platform (ID: CRD42024500956). A search strategy was developed by combining the descriptors “Accident Prevention”, “Child”, and “Health Education” with the Boolean operator AND, applied to the PubMed/MEDLINE, Web of Science, LILACS, and SciELO databases. A total of 5,037 studies were located, including observational articles published from 2018 to 2023, with children aged 0-12 years and/or their parents/caregivers. The quality of the studies was assessed based on the Qualitative Studies Checklist and the Research Triangle Institute Item Bank instruments. The bibliographic sample consisted of 30 articles, mostly classified as high quality, with a population of 4,510 adults and 54,190 children from various countries. Educational strategies for accident prevention were described, aimed at parents and guardians, children, and both. This review, addressing innovative educational strategies for preventing childhood accidents, highlights playful approaches for children and visual methods for caregivers. Implementation faces challenges related to evaluation and socioeconomic factors, making rigorous criteria and prolonged follow-ups important for continuous effectiveness.

https://doi.org/10.1590/0102-311xen036224

Educational strategies for preventing accidents in childhood: a systematic review
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Laguna, Gabriela Garcia de Carvalho

; Gusmão, Ana Luiza Ferreira

; Marques, Breno Oliveira

; Bragas, Níkolas Brayan da Silva

; Assis, Gabriela Alves de Souza

; Evangelista, Karolaine da Costa

; Silva, Natália Oliveira e

Cadernos de Saúde Pública

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2024, Volume 40 N. 10 elocation e00036224

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

https://doi.org/10.1590/0102-311xen036224

Quality of life after necrotizing enterocolitis: an integrative review
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Marques, Breno Oliveira

; Gusmão, Ana Beatriz Ferreira

; Gonzaga, Luana Leal

; Laguna, Gabriela Garcia de Carvalho

; Bragas, Níkolas Brayan da Silva

; Monção, Camila da Palma Maltez

; Silva, Natália Oliveira e

Revista Paulista de Pediatria

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2024, Volume 42 elocation e2023188

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

ABSTRACT Objective: To describe the long-term health outcomes of neonates affected by necrotizing enterocolitis (NEC) and its implications for quality of life. Data source: This is an integrative review, conducted by searching the literature in the following databases: Virtual Health Library (BVS), Latin American and Caribbean Health Sciences Literature (LILACS), Medical Literature Analysis and Retrieval System Online (MEDLINE), and PubMed, using Health Sciences Descriptors (DeCS): “necrotizing enterocolitis,” “quality of life,” and “prognosis” combined with the Boolean operators AND and OR: “quality of life” OR “prognosis.” Inclusion criteria were: publication period between 2012 and 2022. Data synthesis: A total of 1,010 studies were located, of which ten were selected to comprise the bibliographic sample of this review. Children with NEC are prone to exhibit cognitive neurological impairment, especially those who undergo surgical procedures due to more severe conditions. Motor development was considered below average when compared to healthy children, with more noticeable delays in fine and gross motor function development. The search for the relationship between NEC and quality of life revealed that this condition has a negative impact on the well-being of affected individuals. Conclusions: NEC has proven to be a serious condition contributing to high rates of morbidity and mortality in newborns, potentially leading to a reduction in the quality of life of affected patients.

RESUMO Objetivo: Descrever os desfechos em longo prazo na saúde de neonatos acometidos com enterocolite necrosante (ECN) e suas repercussões na qualidade de vida. Fontes de dados: Trata-se de uma revisão integrativa, realizada com base no levantamento da bibliografia nas bases de dados: Biblioteca Virtual em Saúde (BVS), Literatura Latino-Americana e do Caribe em Ciências da Saúde (Lilacs), Medical Literature Analysis and Retrieval System Online (Medline) e PubMed por meio dos Descritores em Ciências da Saúde (DeCS): “necrotizing enterocolitis”, “quality of life” e “prognosis” combinados com os operadores booleanos AND e OR: “quality of life” OR “prognosis”. Os critérios de inclusão foram: período de publicação entre 2012 e 2022; Síntese dos dados: Foram localizados 1.010 estudos, dos quais dez foram selecionados para compor a amostra bibliográfica desta revisão. As crianças com ECN são propensas a apresentar comprometimento neurológico cognitivo, principalmente aquelas submetidas a procedimentos cirúrgicos em razão de quadros mais graves. O desenvolvimento motor foi considerado abaixo da média se comparado ao de crianças saudáveis, com atraso mais perceptível no desenvolvimento de funções motoras finas e grossas. A busca pela relação entre enterocolite necrosante e qualidade vida trouxe como resultado que essa condição tem impacto negativo sobre o bem-estar dos indivíduos acometidos. Conclusões: A enterocolite necrosante mostrou-se como uma condição grave que contribui para altas taxas de morbimortalidade em recém-nascidos, sendo uma potencial causa para a redução da qualidade de vida dos pacientes acometidos.

https://doi.org/10.1590/1984-0462/2024/42/2023188

Posicionamento sobre Doença Isquêmica do Coração – A Mulher no Centro do Cuidado – 2023
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Oliveira, Gláucia Maria Moraes de

; Almeida, Maria Cristina Costa de

; Rassi, Daniela do Carmo

; Bragança, Érika Olivier Vilela

; Moura, Lidia Zytynski

; Arrais, Magaly

; Campos, Milena dos Santos Barros

; Lemke, Viviana Guzzo

; Avila, Walkiria Samuel

; Lucena, Alexandre Jorge Gomes de

; Almeida, André Luiz Cerqueira de

; Brandão, Andréa Araujo

; Ferreira, Andrea Dumsch de Aragon

; Biolo, Andreia

; Macedo, Ariane Vieira Scarlatelli

; Falcão, Breno de Alencar Araripe

; Polanczyk, Carisi Anne

; Lantieri, Carla Janice Baister

; Marques-Santos, Celi

; Freire, Claudia Maria Vilas

; Pellegrini, Denise

; Alexandre, Elizabeth Regina Giunco

; Braga, Fabiana Goulart Marcondes

; Oliveira, Fabiana Michelle Feitosa de

; Cintra, Fatima Dumas

; Costa, Isabela Bispo Santos da Silva

; Silva, José Sérgio Nascimento

; Carreira, Lara Terra F.

; Magalhães, Lucelia Batista Neves Cunha

; Matos, Luciana Diniz Nagem Janot de

; Assad, Marcelo Heitor Vieira

; Barbosa, Marcia M.

; Silva, Marconi Gomes da

; Rivera, Maria Alayde Mendonça

; Izar, Maria Cristina de Oliveira

; Costa, Maria Elizabeth Navegantes Caetano

; Paiva, Maria Sanali Moura de Oliveira

; Castro, Marildes Luiza de

; Uellendahl, Marly

; Oliveira Junior, Mucio Tavares de

; Souza, Olga Ferreira de

; Costa, Ricardo Alves da

; Coutinho, Ricardo Quental

; Silva, Sheyla Cristina Tonheiro Ferro da

; Martins, Sílvia Marinho

; Brandão, Simone Cristina Soares

; Buglia, Susimeire

; Barbosa, Tatiana Maia Jorge de Ulhôa

; Nascimento, Thais Aguiar do

; Vieira, Thais

; Campagnucci, Valquíria Pelisser Chagas, Antonio Carlos Palandri

Arquivos Brasileiros de Cardiologia

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2023, Volume 120 N. 7 elocation e20230303

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

https://doi.org/10.36660/abc.20230303

Effect of fire under the soils on the organization of communities of three remnants of Amazonian savannas
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Santos, Ronaldo Oliveira dos

; Souza, Alan Pena de

; Soares, Rubiene Neto

; Rabelo, Fernando Galvão

; Silva, Breno Marques da Silva e

; Costa Neto, Salustiano Vilar da

Acta Botanica Brasilica

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sep 2020, Volume 34 N. 3 Pages 505 - 521

Abstract: En | Text: En | PDF: En

ABSTRACT Areas of cerrado (Brazilian savanna) in the Amazon have been poorly studied from the perspective of fire impacts on environmental sustainability, especially with regard to disturbances to soil and vegetation structure. This study aimed to analyze the influence of edaphic variables and fire together on the composition and structure of tree and shrub vegetation of three cerrado remnants in the Amazon. Eight plots were systematically installed in burned and unburned environments in each remnant. Data were submitted to floristic diversity, similarity, and diametric and altimetric structural assessments. Phytosociological parameters were obtained and submitted to Principal Component Analysis (PCA) and Canonical Correspondence Analysis (CCA). A total of 808 individuals (34 species, 30 genera, and 21 families) were recorded. The CCA indicated that the distribution of species is influenced by edaphic factors, as confirmed by the strong direct correlation of tree and shrub species with the reduced nutrition and high acidity of the soils common in the analyzed remnants. Our results support the hypothesis that fire plays a relevant role in structuring vegetation since it contributed to good indicators of soil properties and caused changes in the composition of woody species.

https://doi.org/10.1590/0102-33062019abb0399 586 downloads

Morphological aspects and anatomy of the fruit, seeds and seedlings of Pentaclethra macroloba (willd.) Kuntze (Fabaceae)
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Soares, Rubiene Neto

; Santos, Ronaldo Oliveira dos

; Silva, Breno Marques da Silva e

Journal of Seed Science

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oct 2019, Volume 41 N. 4 Pages 452 - 460

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

Resumo: O estudo objetivou descrever a morfologia de fruto, semente e plântula, bem como a anatomia da semente e plântula de Pentaclethra macroloba (Willd.) Kuntze. A morfo-biometria foi realizada em cinquenta frutos e cem sementes. Para descrição das sequências dos eventos morfológicos dos estágios de germinação, dez sementes foram colocadas para germinar. A análise anatômica foi realizada em microscópio eletrônico de varredura com amostras de sementes e folhas de plântulas. A espécie apresenta fruto do tipo legume, medindo 16,1 a 45,2 cm de comprimento, e 4,1 a 7,3 cm de largura; semente com pleurograma, eurispérmica, ovoide, deltoide a elíptica, possuindo dimensões entre 3,8 a 6,1cm de comprimento e 2,5 a 5,7 cm de largura. Anatomicamente, os cotilédones são compostos de células parenquimáticas de paredes delgadas e com diversas células oleíferas. As plântulas possuem folhas bipinadas, com ceras e tricomas simples nas margens da face adaxial e estômatos paracíticos na face abaxial. O epicótilo é levemente tortuoso; com catáfilos caducos e primeiro par de eófilos alternos. A germinação é do tipo fânero-hipógea-armazenadora. O reconhecimento taxonômico da referida espécie é possível no campo por meio dos caracteres morfológicos externos, podendo auxiliar na identificação de plantas jovens.

Abstract: The aim of this study was to describe the morphology of fruit, seeds and seedlings, as well as the anatomy of the seed and the seedling of Pentaclethra macroloba (Willd.) Kuntze. Morpho-biometry was performed on fifty fruit samples and one hundred seeds. To describe the sequences of the morphological events of the germination stages, ten seeds were placed to germinate. Anatomical analysis was performed in a scanning electron microscope with seed samples and seedling leaves. The species has leguminous type fruit of 16.1 to 45.2 cm length and 4.1 to 7.3 cm width; seeds have a pleurogram and are eurispermic, ovoid, deltoid to elliptical and measure from 3.8 to 6.1 cm length and 2.5 to 5.7 cm width. Anatomically, the cotyledons are composed of thin-walled parenchyma cells with various oil cells. The seedlings have bipinnate leaves, with waxes and simple trichomes at the margins of the adaxial surface and paracytic stomata on the abaxial surface. The epicotyl is slightly twisted, with caducous cataphylls and a first pair of alternate eophylls. Germination is of the phanero-hypogean-reserve type. Taxonomic recognition of this species is possible in the field through the external morphological traits and can help in identification of saplings.

https://doi.org/10.1590/2317-1545v41n4222721 1249 downloads

Compositional Similarity of Urban Green Areas in Southeastern Brazil
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Santos, Ronaldo Oliveira dos

; Soares, Rubiene Neto

; Silva, Breno Marques da Silva e

Floresta e Ambiente

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2019, Volume 26 N. 2 elocation e20170747

Abstract: En | Text: En | PDF: En

ABSTRACT Urban afforestation greatly contributes to the ex situ conservation of native species in urban centers of Brazil. In this way, the aim of the present work was to analyze the similarity of the arboreal-shrub flora among urban afforestation in southeastern Brazil. For this analysis, a binary matrix with data of 283 species present in 20 municipalities in the Southeastern Region of Brazil was adopted, in which the Principal Component Analysis (PCA) was also used aiming at enabling refinement in the grouping obtained by the floristic similarity (FS) of Sørensen with similarity from values provided by PCA. FS among municipalities was intermediate, but the highest similarity of urban flora was found among the geographically closest municipalities. In the southeastern region, 283 species were recorded, being distributed in 71 botanical families, with Fabaceae having the largest number of species, and with emphasis on the predominance of exotic plants over native plants.

https://doi.org/10.1590/2179-8087.074717 602 downloads

Modeling the leaf area of Ormosia paraensis Ducke by statistical models and artificial neural networks
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dos Santos, Ronaldo Oliveira Neto Soares, Rubiene Pimentel, Mickelly Paula Queiroz de Abreu, Jadson Coelho de Lima, Robson Borges da Silva e Silva, Breno Marques

Chilean journal of agricultural research

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dec 2018, Volume 78 N. 4 Pages 511 - 520

Abstract: En | Text: En | PDF: En

ABSTRACT The leaf is a very important plant structure because it allows gas exchange and transformation of light energy into chemical energy. The objective of this research study was to test artificial neural networks (ANNs) to estimate the leaf area (LA) of Ormosia paraensis Ducke and compare their performance with adjusted statistical models. One hundred forty leaves were selected from seedlings of the species at the leaf age of 100 days after sowing (DAT). The LA was calculated by indirect estimation with ImageJ software, and the linear length (L) and width (W) dimensions were measured with a ruler graduated in centimeters. Afterward, 90 leaves were randomly separated to generate mathematical equations of LA (Y) as a function of linear dimensions (L and W), and 50 leaves to validate the equations. Similarly, 100 networks of the multilayer perceptron (MLP) type were trained with the backpropagation algorithm and the best networks were selected for later validation. The choice of the best equations and ANNs was based on precision and dispersion statistics. The quadratic equation obtained from model (4) demonstrated consistent statistics with the coefficient of determination (R²aj = 87.39) and a low result for the standard error of estimate (SEE = 12.07%). For the ANNs, a correlation coefficient (Ryŷ), varying between 0.9316 and 0.9521, was obtained in the training phase, while it ranged from 0.8522 to 0.8825 in the validation phase, generating lower residues. It is concluded that the ANN performance was higher compared with the conventional regression technique.

10.

Seed anatomy and water uptake and their relation to seed dormancy of Ormosia paraensis Ducke
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Silva, Breno Marques da Silva e Silva, Camila de Oliveira e Môro, Fabiola Vitti Vieira, Roberval Daiton

Journal of Seed Science

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sep 2018, Volume 40 N. 3 Pages 237 - 245

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

Resumo: Ormosia paraensis Ducke, conhecida popularmente por tento, possui sementes ornamentais amplamente usadas na confecção de biojóias, assim como, sua madeira é usada na indústria moveleira. Para produção de mudas, as informações sobre a fisiologia das sementes de tento são escassas. Desta forma, o objetivo da presente pesquisa foi avaliar métodos para a quebra de dormência, assim como, relacioná-los com a estrutura do tegumento e com a absorção de água pelas sementes. Para a quebra de dormência das sementes, foi utilizada a abrasão com lixa e a imersão em ácido sulfúrico por 0, 15, 30, 60, 120 e 240 minutos em comparação com sementes intactas. A semente de tegumento é formada pela cutícula (substâncias hidrofóbicas), epiderme (camada paliçada - macroesclereides), hipoderme (osteoesclereides) e células parênquimáticas. As sementes intactas não absorveram água após 72 horas de imersão. As maiores porcentagens e taxas de germinação de sementes foram observadas nos tratamentos de escarificação mecânica e imersão em ácido sulfúrico por 60 ou 120 minutos. A imersão em ácido sulfúrico (H2SO4 - p.a. - 98,08%) por 60 ou 120 minutos ou a abrasão mecânica com lixa são adequadas para a superação de dormência física associada à impermeabilidade do tegumento das sementes de tento a água ou gases.

Abstract: Ormosia paraensis Ducke has ornamental seeds widely used in the manufacture of bio-jewels and wood used in the furniture industry. For seedling production, the information on its seed physiology is scarce. Thus, the aim of this study was to assess methods for breaking dormancy and relate them to integument structure and water uptake by O. paraensis seeds. Seed dormancy-breaking was performed by mechanical scarification and soaking in sulfuric acid for 0, 15, 30, 60, 120, and 240 minutes. Dormancy‐broken seeds were compared with intact seeds. Seed integument is formed by a cuticle (hydrophobic substances), epidermis (macroesclereids of the palisade layer,), hypodermis (osteosclereids), and parenchyma cells. Intact seeds did not absorb water after 72 hours of soaking. The highest percentages and rates of seed germination were observed in treatments with mechanical scarification and soaking in sulfuric acid for 60 or 120 minutes. Seed soaking in sulfuric acid (H2SO4 p.a. 98.08%) for 60 or 120 minutes or mechanical scarification are adequate to overcome physical dormancy associated with O. paraensis seed integument impermeability to water or gases.

https://doi.org/10.1590/2317-1545v40n3177599 1165 downloads

11.

Morphoanatomy of fruit, seed and seedling of Ormosia paraensis Ducke
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Silva, Breno Marques da Silva e Silva, Camila de Oliveira e Môro, Fabíola Vitti Vieira, Roberval Daiton

Journal of Seed Science

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dec 2015, Volume 37 N. 4 Pages 192 - 198

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

Resumo Ormosia paraensis Ducke, conhecida popularmente por tento, possui sementes ornamentais amplamente usadas na confecção de biojóias, assim como, sua madeira é usada na indústria moveleira. Para a identificação florestal e tecnologia de sementes, as informações sobre a morfoanatomia de seus frutos, sementes e plântulas são escassas. Desta forma, o objetivo no presente trabalho foi descrever morfoanatomicamente o fruto, a semente e a plântula de tento. Para a descrição morfoanatômica de tento, os frutos, as sementes e as plântulas foram avaliados por meio de microscopia óptica e eletrônica de varredura. O fruto de tento é um legume nucóide, pseudo-septado, castanho a preto, deiscente, portando uma ou duas sementes, de placentação lateral, sendo o epicarpo delgado, mesocarpo lenhoso e endocarpo esponjoso, medindo cerca de 4,4; 3,9 e 2,0 cm de comprimento, largura e espessura, respectivamente. As sementes são bitegumentadas, exalbuminosas, arredondadas, com dimensões médias: comprimento de 12,36 mm, largura de 9,68 mm e espessura de 8,03 mm. As plântulas de tento apresentam folhas simples e alternas, com raiz pivotante e caule cilíndrico, sendo a germinação do tipo hipógea criptocotiledonar.

Ormosia paraensis Ducke, known as "tento", has seeds that are used to make handcrafts and wood that is worked on by furniture makers. For forest identification and seeds technology, the information about the morphoanatomy of their fruits, seeds and seedlings is scarce. Therefore, the purpose of this study was to morphoanatomically describe the fruit, seeds and the post-seminal development of "tento". For the morphoanatomical description, the evaluations were examined by optical and electron microscopy scanning. The fruit is a nutant legume, brown to black, dehiscent and with one or two seeds of lateral placentation, being the epicarp slim, the mesocarp woody and the endocarp spongy, measuring about 4.4 cm, 3.9 cm and 2.0 cm in length, width and thickness, respectively. The seeds are bitegmic, exalbuminous and rounded with average dimensions: length of 12.36 mm, width of 9.68 mm and thickness of 8.03 mm. The "tento" seedlings have simple and alternate leaves, with tap roots and cylindrical stem, being its germination hypogeal cryptocotyledonary.

https://doi.org/10.1590/2317-1545v37n4151436 1946 downloads

12.

Teor de nutrientes e trocas gasosas em plantas de copo-de-leite cultivadas em sistema hidropônico
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Landgraf, Paulo Roberto Corrêa Marques, Douglas José Mantovani, José Ricardo Silva, Adriano Bortolotti da Santos, Breno Régis Paiva, Patrícia Duarte de Oliveira Silva, Rodrigo Sérgio da

Pesquisa Agropecuária Brasileira

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nov 2015, Volume 50 N. 11 Pages 1027 - 1032

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

Resumo: O objetivo deste trabalho foi avaliar o efeito do cultivo de plantas de copo-de-leite (Zantedeschia aethiopica) em sistema hidropônico, no crescimento vegetativo, no teor de nutrientes na parte aérea e nas trocas gasosas. Utilizou-se o delineamento experimental inteiramente casualizado, em arranjo fatorial triplo (2x2x2), com oito tratamentos, três repetições e oito plantas por parcela. Os tratamentos consistiram de duas dimensões de espuma fenólica (2,5x2,5x2,5 e 5,0x5,0x3,8 cm, expressas em altura x comprimento x largura), duas soluções nutritivas e dois perfis hidropônicos (100 e 150 mm). As plantas de copo-de-leite foram cultivadas em sistema hidropônico fluxo laminar de nutriente (NFT) e apresentaram teores de nutrientes na parte aérea, na seguinte sequência decrescente: K>N>Ca>P>S>Mg para macronutrientes e Fe>Mn>Zn>B>Cu para micronutrientes. Plantas de copo-de-leite cultivadas em sistema hidropônico NFT, em espuma fenólica de 5,0x5,0x3,8 cm e em perfil hidropônico de 150 mm, apresentam maior acúmulo de massa de matéria seca na parte aérea e no rizoma, bem como maiores taxas fotossintéticas, independentemente da solução nutritiva.

Abstract: The objective of this work was to evaluate the effect of growing calla lily plants (Zantedeschia aethiopica) in a hydroponic system on vegetative growth, nutrient content in shoots, and gas exchange. A completely randomized design in a triple factorial arrangement (2x2x2) was used, with eight treatments, three replicates, and eight plants per plot. The treatments consisted of two dimensions of phenolic foam (2.5x2.5x2.5 and 5.0x5.0x3.8 cm, expressed as height x length x width), two nutrient solutions, and two hydroponic profiles (100 and 150 mm). The calla lily plants were grown in a nutrient film technique (NFT) hydroponic system and presented nutrient content in the shoots in the following decreasing order: K>N>Ca>P>S>Mg for macronutrients and Fe>Mn>Zn>B>Cu for micronutrients. Calla lily plants grown in a NFT hydroponic system, in the phenolic foam of 5.0x5.0x3.8-cm dimensions and in the hydroponic profile of 150 mm, show greater dry matter accumulation in shoots and bulbs, as well higher photosynthetic rates, regardless of nutrient solution.

https://doi.org/10.1590/S0100-204X2015001100005 1962 downloads

13.

A Inibição da Via Final Comum da Agregação Plaquetária Reduz o Fenômeno de Não Reperfusão Durante a Intervenção Coronária Percutânea Primária? Tirofiban no Infarto Agudo do miocárdio e a não ReperfusÃo (TIARA)
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Lago, Igor Matos Marin-Neto, J. Antonio Lima-Filho, Moysés de Oliveira Pazin Filho, Antonio Figueiredo, Geraldo Luiz Haddad, Jorge Luis Botelho, Roberto Barbosa, Ricardo Gianechini, Ulisses Marques Siqueira, Breno de

Revista Brasileira de Cardiologia Invasiva

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mar 2014, Volume 22 N. 1 Pages 81 - 86

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

Introdução: A intervenção coronária percutânea primária é hoje o método preferencial de reperfusão na abordagem de pacientes com infarto agudo do miocárdio com supradesnivelamento do segmento ST. Em boa parte desses casos, ocorre o fenômeno de não reperfusão, que é a incapacidade de se reperfundir uma região do miocárdio após o restabelecimento da patência de uma artéria coronária epicárdica previamente ocluída. O benefício de inibidores da glicoproteína IIb/IIIa, bloqueando a via final comum da agregação plaquetária, tem sido sugerido em estudos de síndromes coronárias agudas, mas persistem pontos obscuros quanto à sua real eficácia, no contexto da não reperfusão, em pacientes tratados com intervenção coronária percutânea primária. Métodos: Investigação multicêntrica que avaliou o impacto da administração precoce do inibidor da glicoproteína IIb/IIIa de baixo peso molecular tirofiban, em forma duplo-mascarada, controlada por placebo, sobre a ocorrência de não reperfusão, empregando métodos angiográficos e eletrocardiográfico para documentar (1) os fluxos coronário epicárdico, pelo escore TIMI, e microcirculatório, pelo escore MBG de opacificação e escoamento miocárdicos; (2) a resolução do supradesnivelamento do segmento ST, como índice final do sucesso da reperfusão. Conclusões: Se comprovada redução da incidência de não reperfusão tanto 90 minutos como 24 horas após a intervenção coronária percutânea primária, este estudo-piloto, deve nortear a implementação de estudo mais abrangente, para investigar o possível impacto do bloqueio sistemático da via final comum da agregação plaquetária, sobre a mortalidade de pacientes com infarto agudo do miocárdio com supradesnivelamento do segmento ST.

Background: Primary percutaneous coronary intervention is currently the preferred method to treat patients with ST-segment elevation acute myocardial infarction. The no-reflow phenomenon, which is the inability to reperfuse a region of the myocardium after restoration of patency of a previously occluded epicardial coronary artery, is observed in a considerable proportion of these patients. The benefit of IIb/IIIa glycoprotein inhibitors, blocking the final common pathway of platelet aggregation, has been suggested in studies of acute coronary syndromes, but their actual efficacy in the context of no-reflow in patients treated with primary percutaneous coronary intervention remains unclear. Methods: The aim of this multicenter, double-blinded, placebo controlled study is to assess the impact of the early administration of the low molecular weight glycoprotein IIb/ IIIa inhibitor tirofiban on the incidence of no-reflow using angiographic and electrocardiographic methods to determine: (1) the epicardial coronary flow, using the TIMI score, and the microcirculatory flow, using the MBG score of opacification and myocardial flow; (2) the resolution of the ST segment elevation, as the final index of the success of reperfusion. Conclusions: If the decrease in no-reflow incidence at 90 minutes and 24 hours after primary percutaneous coronary intervention is confirmed, this pilot study should guide the implementation of a larger study to investigate the possible impact of the systematic inhibition of the final common pathway of platelet aggregation on the mortality of ST-segment elevation acute myocardial infarction patients.

https://doi.org/10.1590/0104-1843000000014 1531 downloads

14.

Vestibular Findings in Military Band Musicians
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Zeigelboim, Bianca Simone Gueber, Crislaine Silva, Thanara Pruner da Liberalesso, Paulo Breno Noronha Gonçalves, Claudia Giglio de Oliveira Faryniuk, João Henrique Marques, Jair Mendes Jurkiewicz, Ari Leon

International Archives of Otorhinolaryngology

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2014, Volume 18 N. 2 Pages 122 - 127

Abstract: En | Text: En | PDF: En

Introduction Exposure to music is the subject of many studies because it is related to an individual's professional and social activities. Objectives Evaluate the vestibular behavior in military band musicians. Methods A retrospective cross-sectional study was performed. Nineteen musicians with ages ranging from 21 to 46 years were evaluated (average = 33.7 years and standard deviation = 7.2 years). They underwent anamnesis and vestibular and otolaryngologic evaluation through vectoelectronystagmography. Results The most evident otoneurologic symptoms in the anamnesis were tinnitus (84.2%), hearing difficulties (47.3%), dizziness (36.8%), headache (26.3%), intolerance to intense sounds (21.0%), and earache (15.7%). Seven musicians (37.0%) showed vestibular abnormality, which occurred in the caloric test. The abnormality was more prevalent in the peripheral vestibular system, and there was a predominance of irritative peripheral vestibular disorders. Conclusion The alteration in vestibular exam occurred in the caloric test (37.0%). There were changes in the prevalence of peripheral vestibular system with a predominance of irritative vestibular dysfunction. Dizziness was the most significant symptom for the vestibular test in correlation with neurotologic symptoms. The present study made it possible to verify the importance of the labyrinthine test, which demonstrates that this population should be better studied because the systematic exposure to high sound pressure levels may cause major vestibular alterations.

https://doi.org/10.1055/s-0034-1368140 1287 downloads

15.

Morfologia e avaliação do crescimento inicial de plântulas de Bactris gasipaes Kunth. (arecaceae) em diferentes substratos
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Silva, Vanessa Lorencini da Môro, Fabíola Vitti Damião Filho, Carlos Ferreira Môro, José Roberto Silva, Breno Marques da Silva e Charlo, Hamilton César de Oliveira

Revista Brasileira de Fruticultura

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dec 2006, Volume 28 N. 3 Pages 477 - 480

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

Este trabalho teve por objetivos descrever a morfologia dos diásporos, as fases da germinação e determinar o substrato mais adequado para o crescimento inicial de plântulas de pupunha. Periodicamente, unidades representativas de cada fase de germinação foram retiradas para a descrição da seqüência dos eventos morfológicos. Os substratos usados para o crescimento inicial foram Plantmax HT, areia, terra (latossolo roxo) e outro com proporções iguais de terra, areia e esterco (TAE). Avaliou-se o crescimento inicial das plântulas aos 101 dias após o transplante, com base na sua altura, número de folhas, comprimento e largura das folhas. Observou-se que as sementes são albuminosas, com endosperma oleaginoso e de consistência relativamente dura. O embrião é lateral, periférico e relativamente indiferenciado, de forma cônica. A germinação inicia-se com o desenvolvimento de uma massa de células indiferenciadas na depressão micropilar. Posteriormente, esta massa de células torna-se cilíndrica, com a diferenciação dos primórdios caulinar e radicular. O primórdio caulinar é constituído por três bainhas envolvendo a primeira folha. Estas se abrem sucessivamente, permitindo a emergência da folha primária. Entre os substratos testados, de acordo com os parâmetros avaliados, os mais adequados para crescimento inicial de mudas de Bactris gasipaes Kunth foram o TAE e o Plantmax.

This work aimed to describe the morphology of the diaspore, the phases of germination and to determine the most adequate substratum for germination and development of peach palm. Periodically, representative units of each phase of germination had been removed for the description of the sequence of the morphological events. The used substrata for germination and initial growth were Plantmax HT, sand, rich soil and another one with equal ratios of soil, sand and manure (SSM). It was evaluated the percentage and the speed of germination and the initial growth of the seedlings at 101 days after the sowing, on the basis of their leaf height, leaf number, length and width of the leaves. It was observed that the seeds are albuminous, with an oleaginous and hard endosperm. The embryo is lateral, peripheral and relatively undifferentiated, with conic shape. The germination starts with an undifferentiated mass of cells at the micropilar depression. Afterward that structure becomes cylindrical, with the differentiation of the shoot and the primordial roots. The shoot is constituted by three sheathings wrapping the primary leaf. They open themselves successively allowing the primary leaf to emerge. Among the substrata the more adequate ones for the initial grow of Bactris gasipaes seedlings were SSM and Plantmax.

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