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Nitrogen Metabolism in Coffee Plants Subjected to Water Deficit and Nitrate Doses
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Rocha, Brunno César Pereira
; Martinez, Hermínia Emília Prieto
; Ribeiro, Cléberson
; Brito, Danielle Santos
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Brazilian Archives of Biology and Technology
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Abstract Nitrogen uptake is essential for coffee growth and development, resulting in important effects on the biomass and final crop yield. Thus, like most nutrients, nitrogen is absorbed by the roots using water as a mean of transport, so that water stress and nitrogen can directly and indirectly affect various physiological processes. The aim of this paper was to evaluate the nitrogen metabolism in young plants of four varieties of coffee trees (Coffea arabica L.) submitted to water deficit (WD) and nitrogen supply. We have done a triple factorial (2 x 4 x 4) experiment entirely randomized. The plots received combinations of high or low N doses (7mmol/L and 2.8 mmol/L NO3 -), four water potentials (0; -0.4; -0.8; and -1.6 Mpa), and four varieties (Mundo Novo IAC379-19, Acauã F6 ofIBC - PR 82010, Catuaí Vermelho IAC 44, and Catuaí Amarelo IAC 62). One hundred and forty days after the I of the experiment (140 days after the beginning of N stress and 82 days after the beginning of WD stress) the activity of the enzymes nitrate reductase (NR) and glutamine synthetase (GS), concentration of nitrate, free proline, amino acids (TAA), and total proteins were determined in samples of leaf and root tissues. There were differences between varieties independently of WD and N dose for leaf NR, being ‘Acauã’ the cultivar that presented the highest and ‘Catuaí Vermelho’ the lowest value to this trait. The WD promoted an increase on the proline concentration in the roots. With low N dose, the activity of GS presented linear increases in response to WD. It was concluded that in young coffee plants under WD, proline can be involved in the osmotic adjustment, having its synthesis in the roots increased. Under WD, plants with good nitrogen nutrition presented larger leaf concentration of soluble amino acids and total soluble proteins. The varieties studied do not present differentiated responses to WD.
2.
Malate and cell wall aluminum immobilization act as resistance mechanisms in soybean roots
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Andrade, Renata
; Souza, Genaina Aparecida
; Brito, Danielle Santos
; Gonçalves, Bruno Guilherme
; Valadares, Samuel Vasconcelos
; Dal-Bianco, Maximiller
; Ribeiro, Cleberson
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ABSTRACT Toxic levels of aluminum (Al) in the soil can reduce the growth of different grain crops. To understand the effects of Al in soybean (Glycine max L.) seedlings Al accumulation and its effect on anatomy, morphology, and metabolism in roots of two soybean genotypes were evaluated: Suprema and A7002. For this, soybean plants were grown in nutrient Clark solution, pH 4.0, without Al (control) and with 100 µM of Al for 72 hours. Both genotypes accumulated Al in the roots, however, Suprema showed a higher Al accumulation than A7002. The latter genotype showed Al accumulated only in the cell walls of the epidermis and root cap, which did not affect root growth. On the other hand, in Suprema, Al accumulated in the cells of the root cap, epidermis, and the nucleus of the ground meristem cells, which resulted in inhibited root growth and structural damage in the root epidermis cells. Al modulated the primary metabolism with increases in the levels of glucose, fructose, sucrose, and malate in the roots of the genotype A7002 and reduced the starch levels in the Suprema genotype. The findings of this study suggest the A7002 genotype seems to be more resistant to Al than Suprema, mainly by the use of two important mechanisms: an increase in malate content and Al immobilization in the external cells of the root.
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.
Posicionamento sobre Exercícios Físicos na Gestação e no Pós-Parto – 2021
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Campos, Milena dos Santos Barros
; Buglia, Susimeire
; Colombo, Cléa Simone Sabino de Souza
; Buchler, Rica Dodo Delmar
; Brito, Adriana Soares Xavier de
; Mizzaci, Carolina Christianini
; Feitosa, Roberta Helena Fernandes
; Leite, Danielle Batista
; Hossri, Carlos Alberto Cordeiro
; Albuquerque, Lorena Christine Araújo de
; Freitas, Odilon Gariglio Alvarenga de
; Grossman, Gabriel Blacher
; Mastrocola, Luiz Eduardo
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Arquivos Brasileiros de Cardiologia
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https://doi.org/10.36660/abc.20210408
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5.
Chronic use of hydroxychloroquine did not protect against COVID-19 in a large cohort of patients with rheumatic diseases in Brazil
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Pileggi, Gecilmara Salviato
; Ferreira, Gilda Aparecida
; Gomides Reis, Ana Paula Monteiro
; Reis Neto, Edgard Torres
; Abreu, Mirhelen Mendes
; Albuquerque, Cleandro Pires
; Araújo, Nafice Costa
; Bacchiega, Ana Beatriz
; Bianchi, Dante Valdetaro
; Bica, Blanca
; Bonfa, Eloisa Duarte
; Borba, Eduardo Ferreira
; Brito, Danielle Christinne Soares Egypto
; Duarte, Ângela Luzia Branco Pinto
; Santo, Rafaela Cavalheiro Espírito
; Fernandes, Paula Reale
; Guimarães, Mariana Peixoto
; Gomes, Kirla Wagner Poti
; Kakehasi, Adriana Maria
; Klumb, Evandro Mendes
; Lanna, Cristina Costa Duarte
; Marques, Claudia Diniz Lopes
; Monticielo, Odirlei André
; Mota, Licia Maria Henrique
; Munhoz, Gabriela Araújo
; Paiva, Eduardo Santos
; Pereira, Helena Lucia Alves
; Provenza, José Roberto
; Ribeiro, Sandra Lucia Euzébio
; Rocha Junior, Laurindo Ferreira
; Sampaio, Camila Santana Justo Cintra
; Sampaio, Vanderson Souza
; Sato, Emília Inoue
; Skare, Thelma
; de Souza, Viviane Angelina
; Valim, Valeria
; Lacerda, Marcus Vinícius Guimarães
; Xavier, Ricardo Machado
; Pinheiro, Marcelo Medeiros
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Abstract Background: There is a lack of information on the role of chronic use of hydroxychloroquine during the SARS-CoV-2 outbreak. Our aim was to compare the occurrence of COVID-19 between rheumatic disease patients on hydroxychloroquine with individuals from the same household not taking the drug during the first 8 weeks of community viral transmission in Brazil. Methods: This baseline cross-sectional analysis is part of a 24-week observational multi-center study involving 22 Brazilian academic outpatient centers. All information regarding COVID-19 symptoms, epidemiological, clinical, and demographic data were recorded on a specific web-based platform using telephone calls from physicians and medical students. COVID-19 was defined according to the Brazilian Ministry of Health (BMH) criteria. Mann-Whitney, Chi-square and Exact Fisher tests were used for statistical analysis and two binary Final Logistic Regression Model by Wald test were developed using a backward-stepwise method for the presence of COVID-19. Results: From March 29th to May 17st, 2020, a total of 10,443 participants were enrolled, including 5166 (53.9%) rheumatic disease patients, of whom 82.5% had systemic erythematosus lupus, 7.8% rheumatoid arthritis, 3.7% Sjögren’s syndrome and 0.8% systemic sclerosis. In total, 1822 (19.1%) participants reported flu symptoms within the 30 days prior to enrollment, of which 3.1% fulfilled the BMH criteria, but with no significant difference between rheumatic disease patients (4.03%) and controls (3.25%). After adjustments for multiple confounders, the main risk factor significantly associated with a COVID-19 diagnosis was lung disease (OR 1.63; 95% CI 1.03-2.58); and for rheumatic disease patients were diagnosis of systemic sclerosis (OR 2.8; 95% CI 1.19-6.63) and glucocorticoids above 10 mg/ day (OR 2.05; 95% CI 1.31-3.19). In addition, a recent influenza vaccination had a protective effect (OR 0.674; 95% CI 0.46-0.98). Conclusion: Patients with rheumatic disease on hydroxychloroquine presented a similar occurrence of COVID-19 to household cohabitants, suggesting a lack of any protective role against SARS-CoV-2 infection. Trial registration Brazilian Registry of Clinical Trials (ReBEC; RBR - 9KTWX6).
https://doi.org/10.1186/s42358-021-00217-0
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6.
Drought stress during the reproductive stage of two soybean lines
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Rosa, Vanessa do Rosário
; Silva, Adinan Alves da
; Brito, Danielle Santos
; Pereira Júnior, José Domingos
; Silva, Cíntia Oliveira
; Dal-Bianco, Maximiller
; Oliveira, Juraci Alves de
; Ribeiro, Cleberson
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Resumo: O objetivo deste trabalho foi avaliar os efeitos do estresse hídrico no estádio reprodutivo (R3) sobre os parâmetros fisiológicos e o rendimento de grãos de duas linhagens de soja (Glycine max). As linhagens de soja Vx-08-10819 e Vx-08-11614 foram cultivadas em casa de vegetação, onde foram irrigadas até atingirem o estágio de desenvolvimento R3. Durante três dias, o peso dos vasos foi monitorado diariamente para manter 100, 60 e 40% da capacidade de campo (controle e estresses moderado e severo, respectivamente). Foram determinados os parâmetros trocas gasosas e fluorescência da clorofila a, além dos pigmentos cloroplastídicos, solutos osmorregulatórios e enzimas antioxidantes. Após o estresse, as plantas foram reidratadas até o final do estádio reprodutivo (R8) para avaliar o rendimento de grãos. Vx-08-10819 apresentou características que contribuíram para a tolerância à seca, como melhor eficiência no uso da água, modulação da área foliar e atividade enzimática, bem como aparato fotossintético mais eficiente e menor peroxidação lipídica que Vx-08-11614. Além disso, Vx-08-10819 manteve sua produtividade mesmo após deficiência hídrica severa. Em contraste, as limitações hídricas afetaram negativamente a produtividade de Vx-08-11614. A linhagem de soja Vx-08-10819 pode suportar eficientemente períodos de seca durante o estádio reprodutivo, sem que haja interferência no rendimento final de grãos.
Abstract: The objective of this work was to evaluate the effects of drought stress in the reproductive stage (R3) on the physiological parameters and grain yield of two soybean (Glycine max) lines. The Vx-08-10819 and Vx-08-11614 soybean lines were grown in a greenhouse, where they were irrigated until they reached the R3 development stage. During three days, the weight of the pots was monitored daily in order to maintain 100, 60, and 40% field capacity (control and moderate and severe stress, respectively). The parameters gas exchange and chlorophyll a fluorescence, as well as chloroplast pigments, osmoregulatory solutes and antioxidant enzymes, were determined. After stress, the plants were rehydrated until the end of the reproductive stage (R8), to evaluate grain yield. Vx-08-10819 showed traits that contributed to drought tolerance, such as better water-use efficiency, modulation of leaf area, and enzymatic activity, as well as a more efficient photosynthetic apparatus and a lower lipid peroxidation rate than Vx-08-11614. In addition, Vx-08-10819 maintained its productivity even after the severe water deficit. By contrast, water limitations affected negatively the productivity of Vx-08-11614. The Vx-08-10819 soybean line can efficiently withstand drought periods during the reproductive stage, without any interferences on final grain yield.
https://doi.org/10.1590/s1678-3921.pab2020.v55.01736
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7.
Human sapovirus GI.2 and GI.3 from children with acute gastroenteritis in northern Brazil
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Cilli, Audrey
; Luchs, Adriana
; Leal, Elcio
; Gill, Danielle
; Milagres, Flavio Augusto de Pádua
; Komninakis, Shirley Vasconcelos
; Brustulin, Rafael
; Teles, Maria da Aparecida Rodrigues
; Lobato, Márcia Cristina Alves Brito Sayão
; Chagas, Rogério Togisaki das
; Abrão, Maria de Fátima Neves dos Santos
; Soares, Cassia Vitória de Deus Alves
; Deng, Xutao
; Delwart, Eric
; Sabino, Ester Cerdeira
; Costa, Antonio Charlys da
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Human sapoviruses (HSaV) are considered important causative agents of acute gastroenteritis in humans worldwide. However, knowledge of the genetic characteristics of the whole genome of HSaV in Brazil is limited. Here we report the complete genome sequences of six HSaVs GI.2 and two GI.3 strains obtained from children with acute gastroenteritis in the Northern region of Brazil. Next generation sequencing was used to obtain the full genome and molecular characterization of the genome was performed. Phylogenetic analysis of the genome was also performed. Only one complete HSaV GI.2 genome characterization in the country precedes that of the present study. This is the first complete genome sequence of genotype GI.3 in Brazil. The data obtained in this investigation can contribute to the augmentation of the database on the molecular diversity of HSaVs strains circulating in Brazil, and to the improvement of current typing protocols.
https://doi.org/10.1590/0074-02760180574
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