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[SciELO Preprints] - Brazilian Guidelines for In-office and Out-of-office Blood Pressure Measurement – 2023
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Feitosa, Audes Diógenes de Magalhães Barroso, Weimar Kunz Sebba Mion Júnior, Décio Nobre, Fernando Mota-Gomes, Marco Antonio Jardim, Paulo Cesar Brandão Veiga Amodeo, Celso Camargo, Adriana Alessi, Alexandre Sousa, Ana Luiza Lima Brandão, Andréa Araujo Pio-Abreu, Andrea Sposito, Andrei Carvalho Pierin, Angela Maria Geraldo Paiva, Annelise Machado Gomes de Spinelli, Antonio Carlos de Souza Machado, Carlos Alberto Poli-de-Figueiredo, Carlos Eduardo Rodrigues, Cibele Isaac Saad Forjaz, Cláudia Lúcia de Moraes Sampaio, Diogo Pereira Santos Barbosa, Eduardo Costa Duarte Freitas, Elizabete Viana de Cestário , Elizabeth do Espírito Santo Muxfeldt, Elizabeth Silaid Lima Júnior, Emilton Campana, Erika Maria Gonçalves Feitosa, Fabiana Gomes Aragão Magalhães Consolim-Colombo, Fernanda Marciano Almeida, Fernando Antônio de Silva, Giovanio Vieira da Moreno Júnior, Heitor Finimundi, Helius Carlos Guimarães, Isabel Cristina Britto Gemelli, João Roberto Barreto Filho, José Augusto Soares Vilela-Martin, José Fernando Ribeiro, José Marcio Yugar-Toledo, Juan Carlos Magalhães, Lucélia Batista Neves Cunha Drager, Luciano Ferreira Bortolotto, Luiz Aparecido Alves, Marco Antonio de Melo Malachias, Marcus Vinícius Bolívar Neves, Mario Fritsch Toros Santos, Mayara Cedrim Dinamarco, Nelson Moreira Filho, Osni Passarelli Júnior, Oswaldo Valverde de Oliveira Vitorino, Priscila Valverde de Oliveira Miranda, Roberto Dischinger Bezerra, Rodrigo Pedrosa, Rodrigo Pinto Paula, Rogério Baumgratz de Okawa, Rogério Toshiro Passos Póvoa, Rui Manuel dos Santos Fuchs, Sandra C. Inuzuka, Sayuri Ferreira-Filho, Sebastião R. Paffer Fillho, Silvio Hock de Jardim, Thiago de Souza Veiga Guimarães Neto, Vanildo da Silva Koch, Vera Hermina Gusmão, Waléria Dantas Pereira Oigman, Wille Nadruz, Wilson

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Publication date: 2023-09-23

Abstract: En Es Pt

Hypertension is one of the primary modifiable risk factors for morbidity and mortality worldwide, being a major risk factor for coronary artery disease, stroke, and kidney failure. Furthermore, it is highly prevalent, affecting more than one-third of the global population. Blood pressure measurement is a MANDATORY procedure in any medical care setting and is carried out by various healthcare professionals. However, it is still commonly performed without the necessary technical care. Since the diagnosis relies on blood pressure measurement, it is clear how important it is to handle the techniques, methods, and equipment used in its execution with care. It should be emphasized that once the diagnosis is made, all short-term, medium-term, and long-term investigations and treatments are based on the results of blood pressure measurement. Therefore, improper techniques and/or equipment can lead to incorrect diagnoses, either underestimating or overestimating values, resulting in inappropriate actions and significant health and economic losses for individuals and nations. Once the correct diagnosis is made, as knowledge of the importance of proper treatment advances, with the adoption of more detailed normal values and careful treatment objectives towards achieving stricter blood pressure goals, the importance of precision in blood pressure measurement is also reinforced. Blood pressure measurement (described below) is usually performed using the traditional method, the so-called casual or office measurement. Over time, alternatives have been added to it, through the use of semi-automatic or automatic devices by the patients themselves, in waiting rooms or outside the office, in their own homes, or in public spaces. A step further was taken with the use of semi-automatic devices equipped with memory that allow sequential measurements outside the office (ABPM; or HBPM) and other automatic devices that allow programmed measurements over longer periods (HBPM). Some aspects of blood pressure measurement can interfere with obtaining reliable results and, consequently, cause harm in decision-making. These include the importance of using average values, the variation in blood pressure during the day, and short-term variability. These aspects have encouraged the performance of a greater number of measurements in various situations, and different guidelines have advocated the use of equipment that promotes these actions. Devices that perform HBPM or ABPM, which, in addition to allowing greater precision, when used together, detect white coat hypertension (WCH), masked hypertension (MH), sleep blood pressure alterations, and resistant hypertension (RHT) (defined in Chapter 2 of this guideline), are gaining more and more importance. Taking these details into account, we must emphasize that information related to diagnosis, classification, and goal setting is still based on office blood pressure measurement, and for this reason, all attention must be given to the proper execution of this procedure.

La hipertensión arterial (HTA) es uno de los principales factores de riesgo modificables para la morbilidad y mortalidad en todo el mundo, siendo uno de los mayores factores de riesgo para la enfermedad de las arterias coronarias, el accidente cerebrovascular (ACV) y la insuficiencia renal. Además, es altamente prevalente y afecta a más de un tercio de la población mundial. La medición de la presión arterial (PA) es un procedimiento OBLIGATORIO en cualquier atención médica o realizado por diferentes profesionales de la salud. Sin embargo, todavía se realiza comúnmente sin los cuidados técnicos necesarios. Dado que el diagnóstico se basa en la medición de la PA, es claro el cuidado que debe haber con las técnicas, los métodos y los equipos utilizados en su realización. Debemos enfatizar que una vez realizado el diagnóstico, todas las investigaciones y tratamientos a corto, mediano y largo plazo se basan en los resultados de la medición de la PA. Por lo tanto, las técnicas y/o equipos inadecuados pueden llevar a diagnósticos incorrectos, subestimando o sobreestimando valores y resultando en conductas inadecuadas y pérdidas significativas para la salud y la economía de las personas y las naciones. Una vez realizado el diagnóstico correcto, a medida que avanza el conocimiento sobre la importancia del tratamiento adecuado, con la adopción de valores de normalidad más detallados y objetivos de tratamiento más cuidadosos hacia metas de PA más estrictas, también se refuerza la importancia de la precisión en la medición de la PA. La medición de la PA (descrita a continuación) generalmente se realiza mediante el método tradicional, la llamada medición casual o de consultorio. Con el tiempo, se han agregado alternativas a través del uso de dispositivos semiautomáticos o automáticos por parte del propio paciente, en salas de espera o fuera del consultorio, en su propia residencia o en espacios públicos. Se dio un paso más con el uso de dispositivos semiautomáticos equipados con memoria que permiten mediciones secuenciales fuera del consultorio (AMPA; o MRPA) y otros automáticos que permiten mediciones programadas durante períodos más largos (MAPA). Algunos aspectos en la medición de la PA pueden interferir en la obtención de resultados confiables y, en consecuencia, causar daños en las decisiones a tomar. Estos incluyen la importancia de usar valores promedio, la variación de la PA durante el día y la variabilidad a corto plazo. Estos aspectos han alentado la realización de un mayor número de mediciones en diversas situaciones, y diferentes pautas han abogado por el uso de equipos que promuevan estas acciones. Los dispositivos que realizan MRPA o MAPA, que además de permitir una mayor precisión, cuando se usan juntos, detectan la hipertensión de bata blanca (HBB), la hipertensión enmascarada (HM), las alteraciones de la PA durante el sueño y la hipertensión resistente (HR) (definida en el Capítulo 2 de esta guía), están ganando cada vez más importancia. Teniendo en cuenta estos detalles, debemos enfatizar que la información relacionada con el diagnóstico, la clasificación y el establecimiento de objetivos todavía se basa en la medición de la presión arterial en el consultorio, y por esta razón, se debe prestar toda la atención a la ejecución adecuada de este procedimiento.

A hipertensão arterial (HA) é um dos principais fatores de risco modificáveis para morbidade e mortalidade em todo o mundo, sendo um dos maiores fatores de risco para doença arterial coronária, acidente vascular cerebral (AVC) e insuficiência renal. Além disso, é altamente prevalente e atinge mais de um terço da população mundial. A medida da PA é procedimento OBRIGATÓRIO em qualquer atendimento médico ou realizado por diferentes profissionais de saúde. Contudo, ainda é comumente realizada sem os cuidados técnicos necessários. Como o diagnóstico se baseia na medida da PA, fica claro o cuidado que deve haver com as técnicas, os métodos e os equipamentos utilizados na sua realização. Deve-se reforçar que, feito o diagnóstico, toda a investigação e os tratamentos de curto, médio e longo prazos são feitos com base nos resultados da medida da PA. Assim, técnicas e/ou equipamentos inadequados podem levar a diagnósticos incorretos, tanto subestimando quanto superestimando valores e levando a condutas inadequadas e grandes prejuízos à saúde e à economia das pessoas e das nações. Uma vez feito o diagnóstico correto, na medida em que avança o conhecimento da importância do tratamento adequado, com a adoção de valores de normalidade mais detalhados e com objetivos de tratamento mais cuidadosos no sentido do alcance de metas de PA mais rigorosas, fica também reforçada a importância da precisão na medida da PA. A medida da PA (descrita a seguir) é habitualmente feita pelo método tradicional, a assim chamada medida casual ou de consultório. Ao longo do tempo, foram agregadas alternativas a ela, mediante o uso de equipamentos semiautomáticos ou automáticos pelo próprio paciente, nas salas de espera ou fora do consultório, em sua própria residência ou em espaços públicos. Um passo adiante foi dado com o uso de equipamentos semiautomáticos providos de memória que permitem medidas sequenciais fora do consultório (AMPA; ou MRPA) e outros automáticos que permitem medidas programadas por períodos mais prolongados (MAPA). Alguns aspectos na medida da PA podem interferir na obtenção de resultados fidedignos e, consequentemente, causar prejuízo nas condutas a serem tomadas. Entre eles, estão: a importância de serem utilizados valores médios, a variação da PA durante o dia e a variabilidade a curto prazo. Esses aspectos têm estimulado a realização de maior número de medidas em diversas situações, e as diferentes diretrizes têm preconizado o uso de equipamentos que favoreçam essas ações. Ganham cada vez mais espaço os equipamentos que realizam MRPA ou MAPA, que, além de permitirem maior precisão, se empregados em conjunto, detectam a HA do avental branco (HAB), HA mascarada (HM), alterações da PA no sono e HA resistente (HAR) (definidos no Capítulo 2 desta diretriz). Resguardados esses detalhes, devemos ressaltar que as informações relacionadas a diagnóstico, classificação e estabelecimento de metas ainda são baseadas na medida da PA de consultório e, por esse motivo, toda a atenção deve ser dada à realização desse procedimento.

https://doi.org/10.1590/SciELOPreprints.7057

Amazonian Fruit Mari-Mari (Cassia leiandra Benth.): Identification of Flavonoids and Antioxidant, Antimicrobial and Antiproliferative Properties
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Souza, Mayane P. de

; Sá, Ingrity Suelen C.

; Freitas, Flávio Augusto de

; Souza, Afonso D. L. de

; Nunomura, Sergio M.

; Muniz, Magno P.

; Pereira, Ana Paula R.

; Augusto, Bianca O.

; Gomes, Giovana B.

; Perdomo, Renata T.

; Macedo, Maria Lígia R.

; Weber, Simone S.

; Nunomura, Rita de Cassia S.

Journal of the Brazilian Chemical Society

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mar 2023, Volume 34 N. 3 Pages 325 - 332

Abstract: En | Text: En | PDF: En

Mari-mari (Cassia leiandra Benth.) is an Amazonian native fruit that is highly appreciated in the northern region of Brazil, but there are few studies regarding its chemical composition and/or biological properties. A phytochemical study was conducted on the extracts of the pulp, peel and seeds; and their antioxidant, cytotoxic and antimicrobial potential were also determined. Methanol and acetone extracts from different fruit parts were subjected to total phenolic, 2,2-diphenyl-1 picrylhydrazyl (DPPH) radical scavenging and FeIII reducing capacity (FRAP) assays. From the peel extracts, the engeletin and astilbin could also be isolated and characterized based on nuclear magnetic resonance spectroscopy and high-resolution mass spectrometry. A quantification using ultra-fast liquid chromatography of acetone dry crude extracts (DCE) of the peel showed that engeletin was the main compound (532.77 mg g-1 DCE). Astilbin content was also determined (131.53 mg g-1 DCE). The antibacterial and antiproliferative activities were evaluated and the methanol extract of the peel showed higher growth inhibition activity against all tested bacteria. Engeletin showed a relevant antimicrobial effect against Staphylococcus aureus, Staphylococcus epidermidis and Escherichia coli. Acetone and methanol peel extracts exhibited a relevant inhibitory effect on the proliferation of breast carcinoma cells (MCF-7), with no toxicity to the normal cell line (NIH/3T3).

https://doi.org/10.21577/0103-5053.20220111

Co-occurrence patterns between false coral snake Atractus latifrons (Günther, 1868) (Serpentes: Dipsadidae) and venomous coral snakes from the Amazon
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ALMEIDA, PAULA CAROLINA R. DE

; FEITOSA, DARLAN T.

; TERRIBILE, LEVI CARINA

; FREITAS-OLIVEIRA, RONIEL

; PRUDENTE, ANA LÚCIA C.

Anais da Academia Brasileira de Ciências

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2022, Volume 94 elocation e20210991

Abstract: En | Text: En | PDF: En

Abstract Batesian mimicry may result in remarkable cases of phenotypic convergence that represent classic examples of evolution through natural selection. The existence of mimicry systems among coral snakes, however, remains controversial because of contradictions between the predictions of mimetic theory and the empirical patterns of co-occurrence and species abundance. Here, we analyze the geographic distribution of coral snake species of the genus Micrurus and populations of the false coral snake Atractus latifrons in Amazonia, and perform ecological niche modeling (ENM) analyzes to generate potential geographic distributions of species of Micrurus and A. latifrons, identify patterns of co-occurrence and assess whether the distribution of A. latifrons coincides with the distribution of Micrurus species, which could suggest the existence of a possible mimetic relationship between the species. We identified six Micrurus species that may represent mimetic models for A. latifrons. The results of the co-occurrence analysis corroborates the results from ENM, indicating that chromatic patterns of A. latifrons and their respective model species are aggregated. Our study suggests that all color patterns of A. latifrons – including the tricolor monads, and the more common tricolor dyads and tricolor tetrads – may benefit from the resemblance with other Micrurus species as perfect and imperfect mimics.

https://doi.org/10.1590/0001-3765202220210991

Unilateral papilledema and peripapillary polypoidal choroidal vasculopathy as the presenting manifestations of intracranial hypertension
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Matos, Aline Mota Freitas

; Cunha, Leonardo Provetti

; Suzuki, Ana Cláudia F.

; Mello, Luiz Guilherme Marchesi

; Preti, Rony C.

; Zacharias, Leandro C.

; Monteiro, Mário L. R.

Arquivos Brasileiros de Oftalmologia

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dec 2021, Volume 84 N. 6 Pages 598 - 601

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

RESUMO Relatamos um caso de uma paciente de 54 anos com hipertensão intracraniana que apresentava achados atípicos de papiledema unilateral e vasculopatia polipoidal da coroide peripapilar. A investigação levou ao diagnóstico de hipertensão intracraniana idiopática e de um pequeno meningioma incidental. A paciente foi tratada com acetazolamida por via oral, seguida de três injeções intravítreas mensais de bevacizumabe, resultando em inatividade da vasculopatia polipoidal da coroide, redução da exsudação e completa absorção do líquido subretiniano. A apresentação deste caso serve para documentar pela primeira vez vasculopatia polipoidal da coroide associada a papiledema. Ele também demonstra que podem ocorrer anormalidades vasculares da coroide mesmo quando o edema do disco óptico é unilateral, uma manifestação incomum do aumento da pressão intracraniana. O reconhecimento imediato desses achados e seu manejo adequado são essenciais para o tratamento adequado e para prevenção da perda visual irreversível.

ABSTRACT We have reported here the case of a 54-year-old woman with intracranial hypertension that presented with the unique features of unilateral papilledema and peripapillary polypoidal choroidal vasculopathy. Our investigations lead to the diagnosis of idiopathic intracranial hypertension and an incidental small right frontal meningioma. The patient was accordingly treated with oral acetazolamide, followed by three consecutive monthly intravitreal injections of bevacizumab, which resulted in the inactivation of the polypoidal choroidal vasculopathy, marked reduction of lipid exudation, and complete absorption of the subretinal fluid. This case serves as the first documentation of polypoidal choroidal vasculopathy associated with papilledema. It also demonstrates that choroidal vascular abnormalities may occur even when optic disk edema is unilateral, which is an uncommon manifestation of increased intracranial pressure. Prompt recognition of such findings and its appropriate management are essential for adequate treatment and prevention of irreversible visual loss.

https://doi.org/10.5935/0004-2749.20210098 1 downloads

Clinical characteristics and evolution of hematological patients and COVID-19 in Argentina: a report from the Argentine Society of Hematology
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Basquiera, Ana L.

; García, Mercedes J

; Martinez Rolón, Juliana

; Olmedo, Julieta

; Laviano, Julia

; Burgos, Rubén

; Caeiro, Gastón

; Remaggi, Guillermina

; Raña, Pablo

; Paoletti, Mariano

; González, Carlos M.

; Fernández, Isolda

; Pavlovsky, Astrid

; Perusini, Maria A.

; Rodriguez, Andrea

; Guanchiale, Luciana

; Carvani, Analia

; Mandrile, Laura

; Figueroa, Flavia

; Vicente Reparaz, Ángeles

; Fragapane Mathus, Patricia N.

; Garate, Gonzalo

; Fauque, María E.

; Kantor, Gustavo

; Cruset, Soledad

; Gonzalez Lorch, Jacqueline S.

; Szelagowski, Milagros

; Giarini, María P.

; Oliveira, Natalia

; García, María C.

; Ventriglia, María V.

; Pereyra, Patricio H.

; Gutierrez, Daniel R.

; Kusminsky, Gustavo

; Troccoli, Josefina

; Freitas, María J.

; Cranco, Santiago

; Del V.Sanchez, Natalia

; Rey, Irene

; Funes, María E.

; Jarchum, Sol

; Freue, Julian

; Miroli, Augusto

; Guerrero, Osvaldo

; López Ares, Lisa

; Campestri, Reinaldo

; Bove, Victor

; Salinas, Graciela N.

; Cabrejo, María

; Milone, Jorge H.

; Zabaljauregui, Soledad

; Gotta, Daniel

; Dupont, Juan Carlos

; Stemmelin, German

Medicina (Buenos Aires)

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aug 2021, Volume 81 N. 4 Pages 536 - 545

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

Abstract Individuals with malignancies and COVID-19 have a lower survival compared with the general population. However, the information about the impact of COVID-19 on the whole hematological population is scarce. We aimed to describe the 30th day overall survival (OS) after COVID-19 infection in pa tients with a hematological disease in Argentina. A completely anonymous survey from the Argentine Society of Hematology was delivered to all the hematologists in Argentina; it started in April 2020. A cut-off to analyze the data was performed in December 2020 and, finally, 419 patients were reported and suitable for the analysis (average age: 58 years, 90% with malignant diseases). After the COVID-19 diagnosis, the 30-day OS for the whole population was 80.2%. From the entire group (419), 101 (24.1%) individuals required intensive care unit admission, where the 30-day OS was 46.6%. Among allogeneic stem cell transplant recipients, the 30-day OS was 70.3%. Factors associated with a low OS were two or more comorbidities, an active hematological disease and history of chemotherapy. In individuals with the three factors, the 30-day OS was 49.6% while the 30-day OS in those without those factors was 100%. Patients with hematological diseases have a higher mortality than the general population. This group represents a challenge and requires careful decision-making of the treatment in order not to compromise the chances of cure.

Resumen El presente estudio tuvo por objetivo primario conocer la mortalidad de pacientes con enfermedad hematológica que presentaron infección por COVID-19 en Argentina. Para ello se difundió una encuesta desde la Sociedad Argentina de Hematología (SAH) entre los hematológos para informar sobre los pacientes con enfermedades hematológicas y diagnóstico de infección por SARS- CoV-2, entre el 19/4/2020, y el 7/12/2020. Se incluyeron individuos de todas las edades con diagnóstico de enfermedad hematológica benigna o maligna e infección por SARS-CoV-2 confirmada por técnica de RT-PCR. Se analizaron 419 pacientes (mediana 58 años; 90% enfermedades malignas). La supervivencia al día 30 fue de 80.2%. La supervivencia fue menor en aquellos que requirieron internación (74.2%), cuidados intensivos (46.6%) y asistencia respiratoria mecánica (36.8%). Entre los trasplantados alogénicos la supervivencia fue 70.3%. Los factores vinculados a la supervivencia global fueron las comorbilidades, el estado de la enfermedad al momento de la infección y el antecedente de quimioterapia. Se pudo establecer un score en el que aquellos que tuvieron un puntaje de 4 alcanzaron una supervivencia del 49.6% al día 30, mientras que la de los pacientes con score 0 fue del 100% a 30 días. En comparación con la población general, los pacientes con enfermedades hematológicas presentan una mayor mortalidad vinculada al COVID-19, motivo por el cual es primordial definir pautas destinadas a disminuir la exposición de los mismos sin comprometer las posibilidades de beneficiarse del tratamiento de la enfermedad de base.

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Physiological indices of okra under organomineral fertilization and irrigated with salt water
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Sales, Jonnathan R. da S.

; Magalhâes, Clarissa L.

; Freitas, Ana G. S.

; Goes, Geovana F.

; Sousa, Henderson C. de

; Sousa, Geocleber G. de

Revista Brasileira de Engenharia Agrícola e Ambiental

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jul 2021, Volume 25 N. 7 Pages 466 - 471

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

RESUMO O manejo adequado de águas salobras pode aumentar a produção vegetal no Semiárido brasileiro. A fertilização organomineral contribui para a minimização dos efeitos deletérios da salinidade. Nessa perspectiva, objetivou-se avaliar os índices fisiológicos do quiabeiro cultivado sob adubação organomineral e irrigado com água salina. O experimento foi no delineamento experimental inteiramente casualizado no esquema fatorial 6 x 2, com seis repetições, referente a seis formas de adubação: T1 - Adubação mineral com NPK; T2 - Adubação com biofertilizante bovino; T3 - Adubação com cinza vegetal; T4 - Adubo mineral (50%) + biofertilizante bovino (50%); T5 - Adubo mineral (50%) + cinza vegetal (50%); T6 - Controle; e a duas condutividades elétricas da água de irrigação (0,5 e 5,0 dS m-1). Aos 30 e 60 dias após o transplantio, foram analisados os índices fisiológicos do quiabeiro. O estresse salino afeta de forma negativa os indicies fisiológicos da cultura do quiabo, no entanto, a fertilização organomineral atenua parcialmente os efeitos dos sais sobre a fisiologia do quiabeiro. Desta forma, recomenda-se o uso da adubação orgânica e mineral no cultivo do quiabeiro em condições de salinidade.

HIGHLIGHTS Salt water reduces gas exchange in the okra crop, but organomineral fertilization mitigates these effects. The use of organic and mineral fertilization is viable in okra crops under salt stress. Organic fertilizer (100% bovine biofertilizer) decreases internal CO2 concentration.

https://doi.org/10.1590/1807-1929/agriambi.v25n7p466-471 401 downloads

Astaxanthin Recovery from Shrimp Residue by Solvent Ethanol Extraction Using Choline Chloride:Glycerol Deep Eutectic Solvent as Adjuvant
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Santos, Cleidijane A. dos

; Padilha, Carlos E. A.

; Damasceno, Karla S. F. S. C.

; Leite, Pedro I. P.

; Araújo, Ana C. J. de

; Freitas, Priscila R.

; Vieira, Érica A.

; Cordeiro, Angela M. T. M.

; Sousa Jr., Francisco C. de

; Assis, Cristiane F. de

Journal of the Brazilian Chemical Society

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may 2021, Volume 32 N. 5 Pages 1030 - 1039

Abstract: En | Text: En | PDF: En

The present study investigated the use of choline chloride:glycerol deep eutectic solvent as an adjuvant for tuning the ethanol extraction of astaxanthin from Litopenaeus vannamei processing residues. The adjuvant concentration did not show a clear trend on the total carotenoid, however, the addition of adjuvant proved to be advantageous in the ultrasound-assisted experiments. In order to establish a balance between total carotenoid and productivity, an operational condition with ultrasound, 5% (m/v) choline chloride:glycerol and 10 min of incubation was selected, which provided 737.69 µg g-1 total carotenoids and 32.71 µg g-1 astaxanthin. When compared to the astaxanthin standard, the shrimp residue extract obtained greater antioxidant activity in free radical scavenging tests. In addition, the shrimp residue extract dramatically reduced the dosage of norfloxacin (up to 87.5%) and gentamicin (up to 75.0%) antibiotics in tests to inhibit the growth of Gram-negative bacteria.

https://doi.org/10.21577/0103-5053.20210005 173 downloads

Ontogenetic change in the diet of Semaprochilodus insignis (Characiformes: Prochilodontidae) during migration between two limnologically distinct environments in the Amazon Basin
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Soares, Neiliane N.

; deHart, Pieter A. P.

; Marshall, Bruce G.

; Pouilly, Marc

; Oliveira, Ana C. B.

; Bussons, Márcia R. F. M.

; Freitas, Carlos E. C.

; Yamamoto, Kedma C.

Neotropical Ichthyology

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2021, Volume 19 N. 4 elocation e190134

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

Resumo Semaprochilodus insignis é uma espécie de peixe migratório da Amazônia, movendo-se em cardumes entre rios de água branca e preta. Tem sido classificado como um peixe detritívoro-iliófago. Porém, é possível que a plasticidade trófica de S. insignis seja maior do que se supunha. O objetivo deste estudo foi investigar as contribuições relativas de fontes de energia autotróficas para a dieta do S. insignis nos rios Negro e Solimões e se a espécie muda ontogenticamente a sua dieta. Encontramos variações entre os valores de δ13C e δ15N de S. insignis entre os rios: Negro, o perifíton (84%) foi a principal fonte de energia para adultos, enquanto para os juvenis do rio Solimões, foram predominantemente as plantas terrestres/macrófitas C3 (50%) e fitoplâncton (42%). Essas variações nas assinaturas isotópicas provavelmente estão associadas a movimentos migratórios do S. insignis em diferentes estágios da vida e períodos hidrológicos. Ao invés da classificação alimentar previamente assumida, sugerimos que o S. insignis varie sua dieta ontogeneticamente, os adultos são iliófagos em águas negras, enquanto os jovens são detritívoros em rios de águas brancas. Os resultados demonstram que essa espécie promove ligações complexas entre as cadeias alimentares enfatizando, dessa forma, a importância da conservação das áreas inundadas amazônicas.

Abstract Semaprochilodus insignis is an Amazonian migratory fish species, moving in large shoals between white- and black-water rivers. It has long been classified as a detritivorous fish. However, it is possible that the trophic plasticity of S. insignis could be higher than previously assumed. The objective of this study was to investigate the relative contributions of autotrophic energy sources to the diet of S. insignis in the Negro and Solimões rivers and to determine if the species undergoes an ontogenetic change in the diet. We found variations between the δ13C and δ15N values of S. insignis between the rivers. In the Negro River, periphyton (84%) was the principal energy source for adults, while juveniles in the Solimões River foraged predominantly on terrestrial plants/C3 macrophytes (50%) and phytoplankton (42%). These variations in isotopic signatures are likely associated with migratory movements of S. insignis at different life stages and hydrological periods. Instead of the previously assumed dietary classification, we suggest that S. insignis varies its diet ontogenetically, with adults acting as illiophagous in black-water while the young are detritivorous in white-water rivers. The results show that this species creates complex links between food chains, thus emphasizing the importance of conserving flooded areas.

https://doi.org/10.1590/1982-0224-2019-0134

Transmissive to Dark Electrochromic and Fluorescent Device Based on Poly(fluorene-bisthiophene) Derivative
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Nogueira, Fred A. R.

; Silva, Ana Julia C. da

; Freitas, Johnnatan D. de

; Tintino, Amanda S.

; Santos, Anna Paula L. A.

; Oliveira, Italo N.

; Ribeiro, Adriana S.

Journal of the Brazilian Chemical Society

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dec 2019, Volume 30 N. 12 Pages 2702 - 2711

Abstract: En | Text: En | PDF: En

Films of a poly(fluorene-bisthiophene) derivative, named PFBT, were electrodeposited onto indium tin oxide (ITO) electrodes and their electrochromic and fluorescence properties were investigated. Such films displayed color variation from yellow, in the neutral state, to green, in the oxidized state, as shown by tracking of the CIE (Commission Internationale de l’Eclairage) 1931 xy chromaticity coordinates. PFBT films are fluorescent in the neutral state (E = 0.0 V vs. Ag/Ag+) with emission at 532 nm; however, upon oxidation at 0.85 V the photoluminescence intensity is significantly decreased. A solid-state electrochromic device was assembled using PFBT and poly(3,4-ethylenedioxythiophene) doped with poly(styrenesulfonate) (PEDOT-PSS) films and a polymer electrolyte. The device presented color variation from transmissive greenish-yellow to blue and reversible fluorescent properties upon switching between -1.5 to 1.5 V vs. PEDOT. Thus, the high contrast and stability both in electrochromism and electrofluorescence of the PFBT film and its device make them suitable for application in multifunctional optical devices.

https://doi.org/10.21577/0103-5053.20190202 431 downloads

10.

Ameloblastic carcinoma arising from a preexistent ameloblastoma
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Costa Neto, Hugo

; Carmo, Andrea F.

; Andrade, Ana Luiza D. L.

; Rodrigues, Rodrigo R.

; Germano, Adriano R.

; Freitas, Roseana A.

; Galvão, Hébel C.

Jornal Brasileiro de Patologia e Medicina Laboratorial

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oct 2019, Volume 55 N. 5 Pages 530 - 539

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

RESUMO O carcinoma ameloblástico (CA) é um tumor odontogênico raro que representa o equivalente maligno de um ameloblastoma. Existem poucos casos de CA na literatura em inglês: nos últimos 10 anos, foram relatados apenas 16 casos surgidos de ameloblastomas preexistentes. Múltiplas recorrências locais desse tumor precedem essa transformação. Neste relato, descrevemos um caso de CA em região posterior de maxila em uma mulher de 42 anos de idade, submetida à ressecção cirúrgica. Em um período de quatro anos, ocorreram três recidivas do ameloblastoma. Exames de imagem exibiram uma massa radiodensa com destruição da cortical óssea e invasão do seio maxilar. A análise histológica revelou ilhas e ninhos característicos de transformação maligna epitelial, atipias, pleomorfismo celular, hipercromatismo nuclear, necrose e desmoplasia. O CA representa um raro e desafiador diagnóstico histológico. O acesso cirúrgico com ampliação das margens de tecido duro e mole é essencial para o impacto na sobrevida do paciente. A descrição de novos casos pode revelar, por meio do tratamento e do acompanhamento clínico, características que ajudem a entender melhor o comportamento do CA.

ABSTRACT Ameloblastic carcinoma (AC) is a rare odontogenic tumor that represents the malignant counterpart of an ameloblastoma. There are few cases of AC in the English-language literature, with only 16 cases arising from preexisting ameloblastomas reported in the last 10 years. Multiple local recurrences of ameloblastomas precede this transformation. In the current report, we describe a case of AC at the posterior maxilla in a 42-year-old female submitted to surgical resection, with three recurrences of ameloblastoma in a period of four years. Imaging exams showed a radiodense mass with cortical bone disruption and maxillary sinus invasion. Histologic analysis demonstrated features of islands and nests of malignant epithelium transformation, atypia, pleomorphic cells, nuclear hyperchromatism, necrosis and desmoplasia. AC represents a rare and challenging histologic diagnosis. Surgical access with adequate hard and soft tissue margins is essential for influencing survival. The description of new cases may reveal, through of treatment and clinical follow-up, characteristics that allow us better understanding of AC behavior.

RESUMEN El carcinoma ameloblástico (CA) es un tumor odontogénico raro que representa el equivalente maligno de un ameloblastoma. Hay pocos casos de CA en la literatura en lengua inglesa: en los últimos 10 años, sólo se reportaron 16 casos originados de ameloblastomas previos. Múltiples recidivas locales de este tumor preceden esa transformación. En este reporte, describimos un caso de CA en región posterior de maxila en una mujer de 42 años de edad, sometida a resección quirúrgica. En un periodo de cuatro años, se produjeron tres recurrencias del ameloblastoma. Exámenes de imagen muestran una masa radiodensa con destrucción cortical e invasión del seno maxilar. El análisis histológico ha revelado islas y nidos característicos de transformación epitelial maligna, atipias, pleomorfismo celular, hipercromatismo nuclear, necrosis y desmoplasia. El diagnóstico histológico del CA representa un raro desafío. El abordaje quirúrgico con ampliación de los márgenes de tejido duro y blando es esencial en la sobrevida del paciente. La descripción de nuevos casos puede revelar, mediante tratamiento y acompañamiento clínico, características que ayuden a comprender mejor el comportamiento del CA.

https://doi.org/10.5935/1676-2444.20190049 2985 downloads

11.

Potential role of sorafenib as neoadjuvant therapy in unresectable papillary thyroid cancer
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Danilovic, Debora L. S.

; Castro Jr., Gilberto

; Roitberg, Felipe S. R.

; Vanderlei, Felipe A. B.

; Bonani, Fernanda A.

; Freitas, Ricardo M. C.

; Coura-Filho, George B.

; Camargo, Rosalinda Y.

; Kulcsar, Marco A.

; Marui, Suemi

; Hoff, Ana O.

Archives of Endocrinology and Metabolism

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may 2018, Volume 62 N. 3 Pages 370 - 375

Abstract: En | Text: En | PDF: En

Summary Total thyroidectomy, radioiodine (RAI) therapy, and TSH suppression are the mainstay treatment for differentiated thyroid carcinomas (DTCs). Treatments for metastatic disease include surgery, external-beam radiotherapy, RAI, and kinase inhibitors for progressive iodine-refractory disease. Unresectable locoregional disease remains a challenge, as standard therapy with RAI becomes unfeasible. We report a case of a young patient who presented with unresectable papillary thyroid carcinoma (PTC), and treatment with sorafenib allowed total thyroidectomy and RAI therapy. A 20-year-old male presented with severe respiratory distress due to an enlarging cervical mass. Imaging studies revealed an enlarged multinodular thyroid gland, extensive cervical adenopathy, severe tracheal stenosis, and pulmonary micronodules. He required an urgent surgical intervention and underwent tracheostomy and partial left neck dissection, as the disease was deemed unresectable; pathology revealed PTC. Treatment with sorafenib was initiated, resulting in significant tumor reduction allowing near total thyroidectomy and bilateral neck dissection. Postoperatively, the patient underwent radiotherapy for residual tracheal lesion, followed by RAI therapy for avid cervical and pulmonary disease. The patient's disease remains stable 4 years after diagnosis. Sorafenib has been approved for progressive RAI-refractory metastatic DTCs. In this case report, we describe a patient with locally advanced PTC in whom treatment with sorafenib provided sufficient tumor reduction to allow thyroidectomy and RAI therapy, suggesting a potential role of sorafenib as an induction therapy of unresectable DTC.

https://doi.org/10.20945/2359-3997000000046 1373 downloads

12.

Relationship between resting heart rate and anthropometric, metabolic and hemodynamic parameters in the elderly aged 80 years and over
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Rossi, Fabrício E.

; Ricci-Vitor, Ana Laura

; Gomes, Igor C.

; Santos, Vanessa R.

; Sabino, João Paulo J.

; Branco, Luiz Guilherme S.

; Christofaro, Diego G. D.

; Vanderlei, Luiz Carlos M.

; Freitas Junior, Ismael F.

Motriz: Revista de Educação Física

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mar 2016, Volume 22 N. 1 Pages 18 - 26

Abstract: En | Text: En | PDF: En

Abstract This study examined the relationship between resting heart rate (RHRr) and anthropometric, metabolic and hemodynamic parameters in subjects aged 80 years and over. One hundred thirteen individuals were divided into two groups (RHR:<66 beats/min and ≥66 beats/min). Anthropometric parameters (weight, height, body mass index and waist circumference (WC) were measured. Hemodynamic parameters (systolic (SBP) and diastolic (DBP) pressure) were measured and pulse pressures (PP) were obtained. Metabolic parameters were fasting blood glucose, triglycerides and total cholesterol. In elderly aged 80 and over, RHR influenced the changes observed in DBP, PP and triglycerides. Additionally, subjects with RHR≥66 beats/min had higher DBP, glucose, total cholesterol and lower PP as compared with elderly with RHR<66 beats/min. Men demonstrated greater weight, height, and WC than women while women had higher percentage of body fat, trunk fat, and higher total cholesterol. Thus, subjects with 80 years old and over who present RHR≥66 have higher DBP and lower PP and heart rate variability compared with the elderly with RHR<66.

https://doi.org/10.1590/S1980-65742016000100003 1518 downloads

13.

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

; Agra, Maria F.

; Almeida Jr., Eduardo B.

; Almeida, Gracineide S.S.

; Almeida, Rafael F.

; Alves, Flávio M.

; Alves, Marccus

; Alves-Araujo, Anderson

; Amaral, Maria C.E.

; Amorim, André M.

; Amorim, Bruno

; Andrade, Ivanilza M.

; Andreata, Regina H.P.

; Andrino, Caroline O.

; Anunciação, Elisete A.

; Aona, Lidyanne Y.S.

; Aranguren, Yani

; Aranha Filho, João L.M.

; Araújo, Andrea O.

; Araújo, Ariclenes A.M.

; Araújo, Diogo

; Arbo, María M.

; Assis, Leandro

; Assis, Marta C.

; Assunção, Vivian A.

; Athiê-Souza, Sarah M.

; Azevedo, Cecilia O.

; Baitello, João B.

; Barberena, Felipe F.V.A.

; Barbosa, Maria R.V.

; Barros, Fábio

; Barros, Lucas A.V.

; Barros, Michel J.F.

; Baumgratz, José F.A.

; Bernacci, Luis C.

; Berry, Paul E.

; Bigio, Narcísio C.

; Biral, Leonardo

; Bittrich, Volker

; Borges, Rafael A.X.

; Bortoluzzi, Roseli L.C.

; Bove, Cláudia P.

; Bovini, Massimo G.

; Braga, João M.A.

; Braz, Denise M.

; Bringel Jr., João B.A.

; Bruniera, Carla P.

; Buturi, Camila V.

; Cabral, Elza

; Cabral, Fernanda N.

; Caddah, Mayara K.

; Caires, Claudenir S.

; Calazans, Luana S.B.

; Calió, Maria F.

; Camargo, Rodrigo A.

; Campbell, Lisa

; Canto-Dorow, Thais S.

; Carauta, Jorge P.P.

; Cardiel, José M.

; Cardoso, Domingos B.O.S.

; Cardoso, Leandro J.T.

; Carneiro, Camila R.

; Carneiro, Cláudia E.

; Carneiro-Torres, Daniela S.

; Carrijo, Tatiana T.

; Caruzo, Maria B.R.

; Carvalho, Maria L.S.

; Carvalho-Silva, Micheline

; Castello, Ana C.D.

; Cavalheiro, Larissa

; Cervi, Armando C.

; Chacon, Roberta G.

; Chautems, Alain

; Chiavegatto, Berenice

; Chukr, Nádia S.

; Coelho, Alexa A.O.P.

; Coelho, Marcus A.N.

; Coelho, Rubens L.G.

; Cordeiro, Inês

; Cordula, Elizabeth

; Cornejo, Xavier

; Côrtes, Ana L.A.

; Costa, Andrea F.

; Costa, Fabiane N.

; Costa, Jorge A.S.

; Costa, Leila C.

; Costa-e-Silva, Maria B.

; Costa-Lima, James L.

; Cota, Maria R.C.

; Couto, Ricardo S.

; Daly, Douglas C.

; De Stefano, Rodrigo D.

; De Toni, Karen

; Dematteis, Massimiliano

; Dettke, Greta A.

; Di Maio, Fernando R.

; Dórea, Marcos C.

; Duarte, Marília C.

; Dutilh, Julie H.A.

; Dutra, Valquíria F.

; Echternacht, Lívia

; Eggers, Lilian

; Esteves, Gerleni

; Ezcurra, Cecilia

; Falcão Junior, Marcus J.A.

; Feres, Fabíola

; Fernandes, José M.

; Ferreira, D.M.C.

; Ferreira, Fabrício M.

; Ferreira, Gabriel E.

; Ferreira, Priscila P.A.

; Ferreira, Silvana C.

; Ferrucci, Maria S.

; Fiaschi, Pedro

; Filgueiras, Tarciso S.

; Firens, Marcela

; Flores, Andreia S.

; Forero, Enrique

; Forster, Wellington

; Fortuna-Perez, Ana P.

; Fortunato, Reneé H.

; Fraga, Cléudio N.

; França, Flávio

; Francener, Augusto

; Freitas, Joelcio

; Freitas, Maria F.

; Fritsch, Peter W.

; Furtado, Samyra G.

; Gaglioti, André L.

; Garcia, Flávia C.P.

; Germano Filho, Pedro

; Giacomin, Leandro

; Gil, André S.B.

; Giulietti, Ana M.

; A.P.Godoy, Silvana

; Goldenberg, Renato

; Gomes da Costa, Géssica A.

; Gomes, Mário

; Gomes-Klein, Vera L.

; Gonçalves, Eduardo Gomes

; Graham, Shirley

; Groppo, Milton

; Guedes, Juliana S.

; Guimarães, Leonardo R.S.

; Guimarães, Paulo J.F.

; Guimarães, Elsie F.

; Gutierrez, Raul

; Harley, Raymond

; Hassemer, Gustavo

; Hattori, Eric K.O.

; Hefler, Sonia M.

; Heiden, Gustavo

; Henderson, Andrew

; Hensold, Nancy

; Hiepko, Paul

; Holanda, Ana S.S.

; Iganci, João R.V.

; Imig, Daniela C.

; Indriunas, Alexandre

; Jacques, Eliane L.

; Jardim, Jomar G.

; Kamer, Hiltje M.

; Kameyama, Cíntia

; Kinoshita, Luiza S.

; Kirizawa, Mizué

; Klitgaard, Bente B.

; Koch, Ingrid

; Koschnitzke, Cristiana

; Krauss, Nathália P.

; Kriebel, Ricardo

; Kuntz, Juliana

; Larocca, João

; Leal, Eduardo S.

; Lewis, Gwilym P.

; Lima, Carla T.

; Lima, Haroldo C.

; Lima, Itamar B.

; Lima, Laíce F.G.

; Lima, Laura C.P.

; Lima, Leticia R.

; Lima, Luís F.P.

; Lima, Rita B.

; Lírio, Elton J.

; Liro, Renata M.

; Lleras, Eduardo

; Lobão, Adriana

; Loeuille, Benoit

; Lohmann, Lúcia G.

; Loiola, Maria I.B.

; Lombardi, Julio A.

; Longhi-Wagner, Hilda M.

; Lopes, Rosana C.

; Lorencini, Tiago S.

; Louzada, Rafael B.

; Lovo, Juliana

; Lozano, Eduardo D.

; Lucas, Eve

; Ludtke, Raquel

; Luz, Christian L.

; Maas, Paul

; Machado, Anderson F.P.

; Macias, Leila

; Maciel, Jefferson R.

; Magenta, Mara A.G.

; Mamede, Maria C.H.

; Manoel, Evelin A.

; Marchioretto, Maria S.

; Marques, Juliana S.

; Marquete, Nilda

; Marquete, Ronaldo

; Martinelli, Gustavo

; Martins da Silva, Regina C.V.

; Martins, Ângela B.

; Martins, Erika R.

; Martins, Márcio L.L.

; Martins, Milena V.

; Martins, Renata C.

; Matias, Ligia Q.

; Maya-L., Carlos A.

; Mayo, Simon

; Mazine, Fiorella

; Medeiros, Debora

; Medeiros, Erika S.

; Medeiros, Herison

; Medeiros, João D.

; Meireles, José E.

; Mello-Silva, Renato

; Melo, Aline

; Melo, André L.

; Melo, Efigênia

; Melo, José I.M.

; Menezes, Cristine G.

; Menini Neto, Luiz

; Mentz, Lilian A.

; Mezzonato, A.C.

; Michelangeli, Fabián A.

; Milward-de-Azevedo, Michaele A.

; Miotto, Silvia T.S.

; Miranda, Vitor F.O.

; Mondin, Cláudio A.

; Monge, Marcelo

; Monteiro, Daniele

; Monteiro, Raquel F.

; Moraes, Marta D.

; Moraes, Pedro L.R.

; Mori, Scott A.

; Mota, Aline C.

; Mota, Nara F.O.

; Moura, Tania M.

; Mulgura, Maria

; Nakajima, Jimi N.

; Nardy, Camila

; Nascimento Júnior, José E.

; Noblick, Larry

; Nunes, Teonildes S.

; O'Leary, Nataly

; Oliveira, Arline S.

; Oliveira, Caetano T.

; Oliveira, Juliana A.

; Oliveira, Luciana S.D.

; Oliveira, Maria L.A.A.

; Oliveira, Regina C.

; Oliveira, Renata S.

; Oliveira, Reyjane P.

; Paixão-Souza, Bruno

; Parra, Lara R.

; Pasini, Eduardo

; Pastore, José F.B.

; Pastore, Mayara

; Paula-Souza, Juliana

; Pederneiras, Leandro C.

; Peixoto, Ariane L.

; Pelissari, Gisela

; Pellegrini, Marco O.O.

; Pennington, Toby

; Perdiz, Ricardo O.

; Pereira, Anna C.M.

; Pereira, Maria S.

; Pereira, Rodrigo A.S.

; Pessoa, Clenia

; Pessoa, Edlley M.

; Pessoa, Maria C.R.

; Pinto, Luiz J.S.

; Pinto, Rafael B.

; Pontes, Tiago A.

; Prance, Ghillean T.

; Proença, Carolyn

; Profice, Sheila R.

; Pscheidt, Allan C.

; Queiroz, George A.

; Queiroz, Rubens T.

; Quinet, Alexandre

; Rainer, Heimo

; Ramos, Eliana

; Rando, Juliana G.

; Rapini, Alessandro

; Reginato, Marcelo

; Reis, Ilka P.

; Reis, Priscila A.

; Ribeiro, André R.O.

; Ribeiro, José E.L.S.

; Riina, Ricarda

; Ritter, Mara R.

; Rivadavia, Fernando

; Rocha, Antônio E.S.

; Rocha, Maria J.R.

; Rodrigues, Izabella M.C.

; Rodrigues, Karina F.

; Rodrigues, Rodrigo S.

; Rodrigues, Vinícius T.

; Rodrigues, William

; Romaniuc Neto, Sérgio

; Romão, Gerson O.

; Romero, Rosana

; Roque, Nádia

; Rosa, Patrícia

; Rossi, Lúcia

; Sá, Cyl F.C.

; Saavedra, Mariana M.

; Saka, Mariana

; Sakuragui, Cássia M.

; Salas, Roberto M.

; Sales, Margareth F.

; Salimena, Fatima R.G.

; Sampaio, Daniela

; Sancho, Gisela

; Sano, Paulo T.

; Santos, Alessandra

; Santos, Élide P.

; Santos, Juliana S.

; Santos, Marianna R.

; Santos-Gonçalves, Ana P.

; Santos-Silva, Fernanda

; São-Mateus, Wallace

; Saraiva, Deisy P.

; Saridakis, Dennis P.

; Sartori, Ângela L.B.

; Scalon, Viviane R.

; Schneider, Ângelo

; Sebastiani, Renata

; Secco, Ricardo S.

; Senna, Luisa

; Senna-Valle, Luci

; Shirasuna, Regina T.

; Silva Filho, Pedro J.S.

; Silva, Anádria S.

; Silva, Christian

; Silva, Genilson A.R.

; Silva, Gisele O.

; Silva, Márcia C.R.

; Silva, Marcos J.

; Silva, Otávio L.M.

; Silva, Rafaela A.P.

; Silva, Saura R.

; Silva, Tania R.S.

; Silva-Gonçalves, Kelly C.

; Silva-Luz, Cíntia L.

; Simão-Bianchini, Rosângela

; Simões, André O.

; Simpson, Beryl

; Siniscalchi, Carolina M.

; Siqueira Filho, José A.

; Siqueira, Carlos E.

; Siqueira, Josafá C.

; Smith, Nathan P.

; Snak, Cristiane

; Soares Neto, Raimundo L.

; Soares, Kelen P.

; Soares, Marcos V.B.

; Soares, Maria L.

; Soares, Polyana N.

; Sobral, Marcos

; Sodré, Rodolfo C.

; Somner, Genise V.

; Sothers, Cynthia A.

; Sousa, Danilo J.L.

; Souza, Elnatan B.

; Souza, Élvia R.

; Souza, Marcelo

; Souza, Maria L.D.R.

; Souza-Buturi, Fátima O.

; Spina, Andréa P.

; Stapf, María N.S.

; Stefano, Marina V.

; Stehmann, João R.

; Steinmann, Victor

; Takeuchi, Cátia

; Taylor, Charlotte M.

; Taylor, Nigel P.

; Teles, Aristônio M.

; Temponi, Lívia G.

; Terra-Araujo, Mário H.

; Thode, Veronica

; Thomas, W.Wayt

; Tissot-Squalli, Mara L.

; Torke, Benjamin M.

; Torres, Roseli B.

; Tozzi, Ana M.G.A.

; Trad, Rafaela J.

; Trevisan, Rafael

; Trovó, Marcelo

; Valls, José F.M.

; Vaz, Angela M.S.F.

; Versieux, Leonardo

; Viana, Pedro L.

; Vianna Filho, Marcelo D.M.

; Vieira, Ana O.S.

; Vieira, Diego D.

; Vignoli-Silva, Márcia

; Vilar, Thaisa

; Vinhos, Franklin

; Wallnöfer, Bruno

; Wanderley, Maria G.L.

; Wasshausen, Dieter

; Watanabe, Maurício T.C.

; Weigend, Maximilian

; Welker, Cassiano A.D.

; Woodgyer, Elizabeth

; Xifreda, Cecilia C.

; Yamamoto, Kikyo

; Zanin, Ana

; Zenni, Rafael D.

; Zickel, Carmem S

Rodriguésia

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2015, Volume 66 N. 4 Pages 1085 - 1113

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

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 33340 downloads

14.

Interações entre fungos micorrízicos arbusculares, rizóbio e actinomicetos na rizosfera de soja
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Pereira, Marsílvio G.

; Santos, Carolina E. R. S.

; Freitas, Ana D. S. de

; Stamford, Newton P.

; Rocha, Gewerlys S. D. C. da

; Barbosa, Alessandro T.

Revista Brasileira de Engenharia Agrícola e Ambiental

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dec 2013, Volume 17 N. 12 Pages 1249 - 1256

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

Isolados de actinomicetos e de fungos micorrízicos arbusculares foram avaliados em sistemas de inoculação conjunta in vivo, em plantas de soja inoculadas com rizóbios, com a finalidade de se observar interações microbianas. A pesquisa foi realizada no Centro Nacional de Pesquisa de Agrobiologia (Embrapa CNPAB). Foram utilizados, como substrato, solo da série Itaguaí (textura média) misturado com areia de rio na proporção 1:1 (v:v), com adição de isolados de actinomicetos (ACT-78 e ACT-370); estirpes de rizóbios (Bradyrhizobium elkanii - BR 29 e Bradyrhizobium japonicum - BR 33) e fungos micorrízicos arbusculares (Gigaspora margarita e Glomus clarum). Os resultados revelam que a inoculação com os fungos micorrízicos arbusculares influenciou de modo expressivo as variáveis de crescimento, nodulação e densidade de actinomicetos na rizosfera de soja, que apresentaram valores maiores do que as plantas sem o inóculo fúngico. Houve efeitos sinergísticos e antagônicos dos fungos micorrízicos arbusculares com os actinomicetos e com rizóbios.

Actinomycete isolates and arbuscular mycorrhizal fungi were evaluated in vivo using jointly inoculation systems with soybean plants inoculated with rhizobia, with the aim to observe microbial interactions. The study was carried out at the National Center of Agrobiologic Research (Embrapa CNPAB). Soil of the Itaguai series (medium texture) was used as substrate mixed with river sand in proportion 1:1 (v:v), adding actinomycete isolates (ACT 78 and ACT 370), rhizobia strains (Bradyrhizobium elkanii - BR 29 and Bradyrhizobium japonicum - BR 33), and arbuscular mycorrhizal fungi (Gigaspora margarita and Glomus clarum). The results revealed the effect of the arbuscular mycorrhizal fungi addition with significant and expressive influence on growth parameters, nodulation and density of actinomycete isolates on the soybean rhizosphere which showed greater values compared with fungi uninoculated plants. Synergistic and antagonistic effects were observed between the arbuscular mycorrhizal fungi with actinomycetes isolates and rhizobia strains.

5463 downloads

15.

Role of the NO/K ATP pathway in the protective effect of a sulfated-polysaccharide fraction from the algae Hypnea musciformis against ethanol-induced gastric damage in mice
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Damasceno, Samara R. B.

; Rodrigues, Jocélia C.

; Silva, Renan O.

; Nicolau, Lucas A. D.

; Chaves, Luciano S.

; Freitas, Ana L. P.

; Souza, Marcellus H. L. P.

; Barbosa, André L. R.

; Medeiros, Jand-Venes R.

Revista Brasileira de Farmacognosia

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apr 2013, Volume 23 N. 2 Pages 320 - 328

Abstract: En | Text: En | PDF: En

Seaweeds are the most abundant source of polysaccharides such as alginates and agar, as well as carrageenans. This study aimed to investigate the gastroprotective activity and the mechanism underlying this activity of a sulfated-polysaccharide fraction extracted from the algae Hypnea musciformis (Wulfen) J.V. Lamour. (Gigartinales-Rhodophyta). Mice were treated with sulfated-polysaccharide fraction (3, 10, 30, and 90 mg/kg, p.o.) and, after 30 min, they were administered 50% ethanol (0.5 mL/25 g, p.o.). After 1 h, gastric damage was measured using a planimeter. In addition, samples of the stomach tissue were obtained for histopathological examination and for assays to determine the glutathione and malondialdehyde levels. Other groups of mice were pretreated with N G-nitro-L-arginine methyl ester (L-NAME, 10 mg/kg, i.p.), aminoguanidine (100 mg/kg, i.p.), or glibenclamide (10 mg/kg, i.p.). After 30 min to the aminoguanidine group and 1 h to the other groups, sulfated-polysaccharide fraction (30 mg/kg, p.o.) was administered and gastric damage was induced as described above. Sulfated-polysaccharide fraction prevented ethanol-induced gastric injury in a dose-dependent manner. However, treatment with L-NAME or glibenclamide reversed this gastroprotective effect. Administration of aminoguanidine did not influence the effect of sulfated-polysaccharide fraction. Our results suggest that sulfated-polysaccharide fraction exerts a protective effect against ethanol-induced gastric damage via activation of the NO/K ATP pathway.

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