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Enfermedad arterial coronaria y sus características clínico-angiográficas: Realidad de un centro de atención terciaria privado en Angola
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Antunes Vicente, Miguel B.

; Méndez Peralta, Tomás C.

; de Lima Domingos, Luis M.

; Ravelo Dopico, Roger

; de las Mercedes Pradez, Guillermo

; Saraiva Martins, Telmo

; Bunda Ricardo, José R.

; Cordeiro, Lemuel

; Filipe Júnior, António P.

CorSalud

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sep 2021, Volume 13 N. 3 Pages 299 - 310

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

ABSTRACT Introduction: Coronary artery disease has progressively increased among Angolans due to the epidemiological transition resulting from new lifestyles unfavorable to cardiovascular health. Objective: To perform a clinical-angiographic characterization of patients suspected of coronary artery disease undergoing coronary angiography. Method: Retrospective observational study, conducted at Clínica Girassol, with 450 patients who underwent coronary angiography from January 2012 to December 2018. Clinical variables such as sex, age, type of procedure, risk factors, clinical indication, and angiographic features (access route, vessels involved, coronary dominance, treatment strategy and complications) were included. Results: Male sex predominated (71.6%) with a mean age of 59.7±11.2 years. Hypertension was the predominant risk factor (76.0%). Emergency procedures accounted for 56.2% of the interventions; ST-segment elevation acute coronary syndrome (37.3%) was the most frequent. Most of the procedures (81.1%) were performed via the femoral artery. The left anterior descending artery was involved in 37.6% of the cases and right dominance was the most prevalent (94.0%). Femoral hematoma was the most frequent complication (0.9%). Conclusions: The patients who underwent surgery were predominantly male, older, hypertensive, and required urgent procedures, mostly for ST-segment elevation acute coronary syndromes, with very low rates of complications.

RESUMEN Introducción: La enfermedad arterial coronaria ha experimentado un aumento entre los angolanos debido a la transición epidemiológica resultante de los nuevos estilos de vidas desfavorables para la salud cardiovascular. Objetivo: Realizar una caracterización clínico-angiográfica de los pacientes con sospecha de enfermedad arterial coronaria llevados a coronariografía. Método: Estudio observacional retrospectivo, realizado en la Clínica Girassol, con 450 pacientes llevados a coronariografía durante enero del 2012 a diciembre del 2018. Se incluyeron variables clínicas (sexo, edad, tipo de procedimiento, factores de riesgo, indicación clínica) y angiográficas (vía de acceso, vasos afectados, dominancia coronaria, estrategia de tratamiento y complicaciones). Resultados: Predominó el sexo masculino (71,6%) con edad media de 59,7(11,2 años. La hipertensión arterial fue el factor de riesgo predominante (76,0%). El 56,2% de los procedimientos fueron realizados de urgencia siendo el síndrome coronario agudo con elevación del ST (37,3%) el más frecuente. La mayoría de los procedimientos (81,1%) fueron por vía femoral. La descendente anterior estuvo afectada en el 37,6% de los casos y la dominancia derecha fue la más prevalente (94,0%). El hematoma femoral constituyó la complicación más frecuente (0,9%). Conclusiones: En los pacientes intervenidos predominó el sexo masculino, las edades avanzadas, la hipertensión arterial y la realización urgente del procedimiento, mayoritariamente por síndromes coronarios agudos con elevación del segmento ST, con muy baja incidencia de complicaciones.

Use and misuse of biomarkers and the role of D-dimer and C-reactive protein in the management of COVID-19: A post-hoc analysis of a prospective cohort study
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Gonçalves, Fabio Augusto Rodrigues

; Besen, Bruno Adler Maccagnan Pinheiro

; Lima, Clarice Antunes de

; Corá, Aline Pivetta

; Pereira, Antônio José Rodrigues

; Perazzio, Sandro Félix

; Gouvea, Christiane Pereira

; Fonseca, Luiz Augusto Marcondes

; Trindade, Evelinda Marramon

; Sumita, Nairo Massakazu

; Duarte, Alberto José da Silva

; Lichtenstein, Arnaldo

; Bonfa, Eloisa

; Utiyama, Edivaldo M.

; Segurado, Aluisio C.

; Perondi, Beatriz

; Miethke-Morais, Anna

; Montal, Amanda C.

; Harima, Leila

; Fusco, Solange R. G.

; Silva, Marjorie F.

; Rocha, Marcelo C.

; Marcilio, Izabel

; Rios, Izabel Cristina

; Kawano, Fabiane Yumi Ogihara

; Jesus, Maria Amélia de

; Kallas, Ésper George

; Carmo, Carolina

; Tanaka, Clarice

; Souza, Heraldo Possolo de

; Marchini, Julio F. M.

; Carvalho, Carlos

; Ferreira, Juliana C.

; Levin, Anna Sara Shafferman

; Oliveira, Maura Salaroli

; Guimarães, Thaís

; Lázari, Carolina dos Santos

; Sabino, Ester

; Magri, Marcello M. C.

; Barros-Filho, Tarcisio E. P.

; Francisco, Maria Cristina Peres Braido

; Costa, Silvia F.

Clinics

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2021, Volume 76 elocation e3547

Abstract: En | Text: En | PDF: En

OBJECTIVE: Coronavirus disease 2019 (COVID-19) is associated with high mortality among hospitalized patients and incurs high costs. Severe acute respiratory syndrome coronavirus 2 infection can trigger both inflammatory and thrombotic processes, and these complications can lead to a poorer prognosis. This study aimed to evaluate the association and temporal trends of D-dimer and C-reactive protein (CRP) levels with the incidence of venous thromboembolism (VTE), hospital mortality, and costs among inpatients with COVID-19. METHODS: Data were extracted from electronic patient records and laboratory databases. Crude and adjusted associations for age, sex, number of comorbidities, Sequential Organ Failure Assessment score at admission, and D-dimer or CRP logistic regression models were used to evaluate associations. RESULTS: Between March and June 2020, COVID-19 was documented in 3,254 inpatients. The D-dimer level ≥4,000 ng/mL fibrinogen equivalent unit (FEU) mortality odds ratio (OR) was 4.48 (adjusted OR: 1.97). The CRP level ≥220 mg/dL OR for death was 7.73 (adjusted OR: 3.93). The D-dimer level ≥4,000 ng/mL FEU VTE OR was 3.96 (adjusted OR: 3.26). The CRP level ≥220 mg/dL OR for VTE was 2.71 (adjusted OR: 1.92). All these analyses were statistically significant (p<0.001). Stratified hospital costs demonstrated a dose-response pattern. Adjusted D-dimer and CRP levels were associated with higher mortality and doubled hospital costs. In the first week, elevated D-dimer levels predicted VTE occurrence and systemic inflammatory harm, while CRP was a hospital mortality predictor. CONCLUSION: D-dimer and CRP levels were associated with higher hospital mortality and a higher incidence of VTE. D-dimer was more strongly associated with VTE, although its discriminative ability was poor, while CRP was a stronger predictor of hospital mortality. Their use outside the usual indications should not be modified and should be discouraged.

https://doi.org/10.6061/clinics/2021/e3547

Seroprevalence of Corynebacterium pseudotuberculosis and Toxoplasma gondii in sheep in semi-arid region of Ceará state
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Moura, Gabriela Hémylin Ferreira

; Lelis, Ivana Cristina Nunes Gadelha

; Rocha, Célio Souza da

; Oliveira, Ilanna Vanessa Pristo de Medeiros

; Bezerra, José Artur Brilhante

; Calabuig, Cecilia Irene Pérez

; Martins, Patrícia Yoshida Faccioli

; Pinheiro, Raymundo Rizaldo

; Sousa, Maxmiana Mesquita de

; Santos, Vanderlan Warlington Souza dos

; Abreu, Antônio Rafael Albuquerque

; Antunes, João Marcelo Azevedo de Paula

Ciência Rural

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2020, Volume 50 N. 9 elocation e20190760

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

RESUMO: O presente estudo foi conduzido para investigar a soroprevalência em 20 fazendas de criação extensiva de ovinos quanto à presença de anticorpos para Corynebacterium pseudotuberculosis (n=402) e Toxoplasma gondii (n=228). Ensaio de imunoabsorção enzimático (ELISA) foi utilizado para a detecção de anticorpos contra C. pseudotuberculosis/T. gondii. Observou-se que C. pseudotuberculosis apresentou a maior prevalência na região (34,07%), com presença estatisticamente significante (p <0,05) nas categorias de ovelha. Anticorpos contra T. gondii foram encontrados em 14,91% dos animais estudados. Sobre a coinfecção de C. pseudotuberculosis/T. gondii, as categorias carneiro apresentaram diferenças significativas (p <0,05), sugerindo que esse gênero poderia perpetuar as doenças nos rebanhos. Concluiu-se que o conhecimento sobre as doenças na região em estudo facilitaria a execução de medidas profiláticas, principalmente contra as doenças que apresentam riscos à saúde pública e causam danos ao produtor.

ABSTRACT: The present study was conducted to investigate in 20 extensive sheep farms for the seroprevalence of Corynebacterium pseudotuberculosis (n=402) and Toxoplasma gondii (n=228). Enzyme-linked immunosorbent assay (ELISA) was used for the detection of antibodies to C. pseudotuberculosis/T. gondii. It was observed that C. pseudotuberculosis showed the highest prevalence in the region (34.07%) with statistically significant presence (p<0.05) in ewes. Antibodies to T. gondii was reported in 14.91% of the animals studied. About C. pseudotuberculosis/T. gondii coinfection the categories of rams showed significant (p<0.05) differences, suggesting that this gender could perpetuate the diseases in the flocks. It was concluded that the knowledge about the diseases in the region under study would facilitate the execution of prophylactic measures, especially against the diseases that pose risks to the public health and cause damages to the producer.

https://doi.org/10.1590/0103-8478cr20190760 722 downloads

Serum biochemical profile of Pêga breed donkeys in the state of Minas Gerais
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Santos, João B.F.

; Franco, Maurício M.

; Antunes, Robson C.

; Guimarães, Ednaldo C.

; Mundim, Antonio V.

Pesquisa Veterinária Brasileira

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jun 2018, Volume 38 N. 6 Pages 1225 - 1231

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

RESUMO: Para a avaliação dos parâmetros bioquímicos séricos de jumentos (Equus asinus) da raça Pêga, quanto às diferentes faixas etárias e sexo, foram analisadas amostras sanguíneas de 123 animais, sendo 29 machos com idades de 8 dias a 10 anos e 94 fêmeas (15 lactantes) de 2 dias a 12 anos, de dois criatórios na região centro-sul do estado de Minas Gerais. Os animais foram divididos em 5 grupos de acordo com as idades: Grupo 1 (≤6 meses); Grupo 2 (7-12 meses); Grupo 3 (13-48 meses); Grupo 4 (49-72 meses) e Grupo 5 (≥73 meses). De acordo com o sexo, foram divididos em dois grupos, machos e fêmeas. Para todos os animais foram realizadas as análises de proteínas totais, albumina, globulinas, relação A:G, colesterol, triglicérides, ácido úrico, creatinina, ureia, fósforo, cálcio, relação Ca:P, magnésio, alanina aminotransferase (ALT), aspartato aminotransferase (AST), fosfatase alcalina (FAL), gama glutamiltransferase (GGT) e creatina quinase (CK). Não foram encontradas diferenças significativas para os elementos globulinas, ácido úrico, ureia e relação A:G entre as faixas etárias. O Grupo 4 apresentou os maiores valores para proteínas totais quando comparados aos animais dos grupos 1 e 2. Os animais do Grupo 2 mostraram valores de albumina inferiores aos Grupos 3 e 4. Os animais do Grupo 1 apresentaram valores de colesterol superiores aos do Grupo 2 e 4, e semelhante aos demais grupos. Maior concentração sérica de fósforo foi observada nos animais do grupo 1. O cálcio apresentou valor significativamente menor no Grupo 2. A relação Ca:P foi maior para o grupo 5. Os valores do magnésio foram estatisticamente superiores nos animais com idade superior a 49 meses (Grupos 4 e 5). O valor da AST foi menor para o Grupo 1.As enzimas FAL apresentaram valor significativamente maior nos animais mais jovens até 12 meses, seguida de redução gradual com o avançar da idade. Os valores da GGT foi maior nos jumentos com até seis meses de idade, seguido de valores decrescentes para os grupos subsequentes. Não foram encontradas diferenças entre os sexos para albumina, colesterol, creatinina, ureia, ácido úrico, relação Ca:P, magnésio, ALT, AST e fosfatase alcalina. As fêmeas tiveram valores maiores para proteínas totais, globulinas e triglicérides. Os machos mostraram maiores valores para relação A:G, fósforo, cálcio e CK. Pelos resultados nota-se que a idade e o sexo podem influenciar nos valores bioquímicos séricos dos jumentos da raça Pêga.

ABSTRACT: For the evaluation of serum biochemical parameters of Pêga breed donkeys (Equus asinus), for the different age groups and sex, blood samples of 123 animals were analyzed, of 29 males aged from 8 days to 10 years and of 94 females (15 lactating) aged from 2 days to 12 years, from two farms in the central-southern Minas Gerais, Brazil. The donkeys were divided by age into 5 groups: Group 1 (≤6 months), Group 2 (7-12 months), Group 3 (13-48 months), Group 4 (49-72 months), and Group 5 (≥73 months). According to the sex, they were divided into two groups, males and females. Serum biochemical elements: total protein, albumin, globulin, the A:G ratio, cholesterol, triglycerides, uric acid, creatinine, urea, phosphorus, calcium, Ca:P ratio, magnesium, alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), gamma glutamyl transferase (GGT) and creatine kinase (CK), were evaluated in all animals. No significant differences were found for globulins, uric acid, urea and A:G ratio between age groups. Group 4 showed the highest values for total protein when compared with animals in Group 1 and 2. In Goup 2, the donkeys showed albumin levels lower than Group 3 and 4. Group 1 they had cholesterol levels higher than those in Group 2 and 4, and similar of the other groups. Higher phosphorus serum concentration was observed in Group 1. Calcium was significantly lower in Group 2. The Ca:P ratio was higher for Group 5. The magnesium values were significantly higher in donkeys older than 49 months (Group 4 and 5). The value of AST was lower for group 1. The ALP enzyme was significantly higher in younger animals up to 12 months, followed by gradual decrease with advancing age. The values of GGT were higher in donkeys up to 6 months, followed by decreasing values for subsequent groups. No differences were found between genders for albumin, cholesterol, creatinine, urea, uric acid, Ca:P ratio, magnesium, ALT, AST, and alkaline phosphatase. Females had higher values for total protein, globulin and triglycerides. Males showed higher values for A:G ratio, phosphorus, calcium and CK. The results showed that age and sex can influence serum biochemical values of Pêga breed donkeys.

https://doi.org/10.1590/1678-5150-pvb-5121 694 downloads

Reação de genótipos de Stylosanthes capitata à antracnose
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Falco, Josani da Silva

; Fernandes, Celso Dornelas

; Verzignassi, Jaqueline Rosemeire

; Mallmann, Guilherme

; Queiróz, Carolina de Arruda

; Chagas, Haroldo Antunes

; Batista, Margareth Vieir

; Quetez, Francisco Antônio

Summa Phytopathologica

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jun 2016, Volume 42 N. 2 Pages 140 - 148

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

RESUMO O Brasil detém o maior rebanho bovino comercial do mundo, baseado na utilização de pastagens. Atualmente, o uso de leguminosas forrageiras vem crescendo, em consorciação com poáceas ou exclusiva (bancos de proteínas), entre as quais Stylosanthes capitata Swartz. tem se destacado. Porém, sua utilização comercial tem sido limitada, em decorrência da antracnose, causada pelo fungo Colletotrichum gloeosporioides. Este trabalho teve como objetivo identificar genótipos de S. capitata com alto grau de resistência à antracnose. O trabalho foi desenvolvido na Embrapa Gado de Corte, de 2012 a 2014. Inicialmente, semearam-se 30 acessos de S. capitata em casa de vegetação, mantendo-se apenas uma planta por recipiente, onde estas permaneceram durante sete semanas até a realização da inoculação. Em delineamento de blocos ao acaso, em esquema fatorial (30 acessos do hospedeiro x quatro isolados do patógeno), com 10 repetições, conduziram-se dois experimentos, em épocas diferentes. Os isolados monospóricos de C. gloeosporioides (GC2, GC20, GC672 e GC722) foram selecionados com base na sua representatividade das raças fisiológicas mais frequentes no Brasil. Tais isolados foram inoculados com suspensões de 106 conídios/mL nos acessos hospedeiros. Baseado no grau de resistência ao patógeno, os acessos foram classificados como imune a altamente suscetível. No campo, em experimento em blocos ao acaso com quatro repetições, avaliaram-se a severidade da doença em 44 acessos da leguminosa. Dentre os genótipos inoculados, nos dois experimentos, os acessos GC1081, GC1087, GC1090, GC1094, GC1173 e GC2298 comportaram-se como resistentes a todos os isolados do patógeno estudados. Os isolados GC2 e GC672 foram os mais agressivos, independentemente do acesso do hospedeiro. Os resultados do experimento de campo evidenciaram a variabilidade genética do germoplasma estudado quanto à resistência a essa doença. No entanto, não foi possível selecionar acessos resistentes ao patógeno. Em tais condições, pode ocorrer nova variação fisiológica do patógeno, mais agressiva que aquelas artificialmente inoculadas. Temperatura e umidade relativa médias de 22-26º C e 77% UR, respectivamente, proporcionaram condições adequadas para a evolução da doença no campo.

ABSTRACT Brazil has the largest commercial cattle herd in the world, based on the use of pastures. Currently, the use of forage legumes has been increasing, in association with grasses or exclusive (protein banks), among which Stylosanthes capitata Swartz must be highlighted. However, their commercial use has been limited due to anthracnose, caused by the fungus Colletotrichum gloeosporioides. This study aimed to identify genotypes of S. capitata with high degree of resistance to anthracnose. The study was carried out at Embrapa Beef Cattle, from 2012 to 2014. Initially, thirty S. capitata accessions were sown in a greenhouse, keeping just one plant per pot, where they remained for seven weeks until inoculation. In a randomized block design, factorial arrangement (30 host accessions x 4 pathogen isolates), and 10 replicates, two experiments were conducted at different times. The single spore isolates of C. gloeosporioides (GC2, GC20, GC672 and GC722) were selected based on their representativeness of the most frequent physiological races in Brazil. These isolates were inoculated with suspensions of 106 conidia/mL in host accessions. Based on the degree of resistance to the pathogen, the accessions were classified from immune to highly susceptible. In the field, in a randomized block experiment, with four replicates, the disease severity was evaluated on 44 accessions of the legume. Among the inoculated genotypes in both trials, the accessions GC1081, GC1087, GC1090, GC1094, GC 1173 and GC2298 behaved as resistant to all isolates of the studied pathogen. GC2 and GC672 were the most aggressive isolates, regardless of the host accession. Results of the field experiment evidenced the genetic variability of the studied germplasm for resistance to this disease. However, it was not possible to select accessions resistant to the pathogen. Under such conditions, a new physiological variation of the pathogen can occur, more aggressive than the artificially inoculated ones. Average temperature and relative humidity of 22-26ºC and 77%, respectively, provided appropriate conditions for the disease evolution in the field.

https://doi.org/10.1590/0100-5405/2055 1251 downloads

BAY 41-2272 activates host defence against local and disseminated Candida albicans infections
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Soeiro-Pereira, Paulo Vítor

; Falcai, Angela

; Kubo, Christina Arslanian

; Antunes, Edson

; Condino-Neto, Antonio

Memórias do Instituto Oswaldo Cruz

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feb 2015, Volume 110 N. 1 Pages 75 - 85

Abstract: En | Text: En | PDF: En

In our previous study, we have found that 5-cyclopropyl-2-[1-(2-fluoro-benzyl)-1H-pyrazolo[3,4-b]pyridine-3-yl]-pyrimidin-4-ylamine (BAY 41-2272), a guanylate cyclase agonist, activates human monocytes and the THP-1 cell line to produce the superoxide anion, increasing in vitro microbicidal activity, suggesting that this drug can be used to modulate immune functioning in primary immunodeficiency patients. In the present work, we investigated the potential of the in vivo administration of BAY 41-2272 for the treatment of Candida albicans and Staphylococcus aureus infections introduced via intraperitoneal and subcutaneous inoculation. We found that intraperitoneal treatment with BAY 41-2272 markedly increased macrophage-dependent cell influx to the peritoneum in addition to macrophage functions, such as spreading, zymosan particle phagocytosis and nitric oxide and phorbol myristate acetate-stimulated hydrogen peroxide production. Treatment with BAY 41-2272 was highly effective in reducing the death rate due to intraperitoneal inoculation of C. albicans, but not S. aureus. However, we found that in vitro stimulation of peritoneal macrophages with BAY 41-2272 markedly increased microbicidal activities against both pathogens. Our results show that the prevention of death by the treatment of C. albicans-infected mice with BAY 41-2272 might occur primarily by the modulation of the host immune response through macrophage activation.

https://doi.org/10.1590/0074-02760140255 1622 downloads

Avaliação de fungicidas, óleos essenciais e agentes biológicos no controle de Amphobotrys ricini em mamoneira (Ricinus communis L.)
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Chagas, Haroldo Antunes

; Basseto, Marco Antonio

; Rosa, Daniel Dias

; Toppa, Eder Victor Braganti

; Furtado, Edson Luiz

; Zanotto, Mauricio Dutra

Summa Phytopathologica

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mar 2014, Volume 40 N. 1 Pages 42 - 48

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

A mamoneira (Ricinus communis L.) é uma espécie oleaginosa tropical, sendo o óleo extraído de suas sementes um dos mais versáteis da natureza e com inúmeras aplicações industriais. Embora ainda seja uma espécie rústica, ela está sujeita a diversas doenças, dentre elas o mofo-cinzento, causada pelo fungo Amphobotrys ricini. O melhoramento genético seria a melhor alternativa para o controle da doença, mas demanda tempo para se obter cultivares resistentes. Dessa maneira, o uso de métodos de controle baseado em métodos químicos, alternativos ou biológicos mostra-se viável no curto prazo. O objetivo do trabalho foi estudar a eficiência do controle do mofo-cinzento, na cultura da mamoneira, utilizando-se de métodos químico, alternativo e biológico. Assim, procurou-se avaliar, tanto in vitro, quanto in vivo a eficiência de controle do patógenos utilizando-se de fungicidas, óleos essenciais e agentes de controle biológico. Quanto a inibição do crescimento micelial do patógeno in vitro os melhores tratamentos com os óleos essenciais foram os com a base de Cymbopogon martini e Cynnamomum zeylanicum, nas cinco concentrações testadas. Em ambos os óleos, o diâmetro médio das colônias ficou em 0,7 cm contra a média de 4,79 cm da testemunha. Com os fungicidas, nas quatro concentrações testadas, os mais eficientes foram os ingredientes ativos tiofanato metílico, carbendazim, tebuconazole e iprodione. O ED50 destes fungicidas ficou < 1uL/L, atestando 100% de inibição do crescimento micelial em todas as concentrações. Quanto à inibição da germinação dos conídios de A. ricini, os fungicidas tebuconazole e clorotalonil foram os melhores em todas as concentrações testadas, sendo a média dos conídios germinados destes fungicidas de 0,0 e 0,15%, respectivamente, contra 100% da testemunha. No campo, o tratamento com o fungicida iprodione foi o melhor quanto ao controle da doença quando comparados com os tratamentos biológico e alternativo. Em condições de campo, a severidade média da doença com o tratamento com iprodione foi de 15,76% contra 95,81% na testemunha inoculada.

The castor bean (Ricinus communis L.) is a tropical oilseed species, and the oil extracted from its seeds is one of the most versatile oils in the nature, showing various industrial uses. Even though it is a rustic species, the castor bean is subjected to several diseases such as the gray mold, caused by the fungus Amphobotrys ricini. Genetic breeding would be the best alternative for the disease control, but a long time is required to obtain resistant cultivars. Thus, the use of control strategies based on chemical, alternative or biological methods shows viable in the short term. The aim of this study was to investigate gray mold control efficiency, in castor bean crop, using chemical, alternative and biological methods. The pathogen control efficiency was evaluated both in vitro and in vivo using fungicides, essential oils and biological control agents. As regards the in vitro inhibition of the pathogen mycelial growth, the best treatments with essential oils were those based on C. martini and C. zeylanicum at all five tested concentrations. For both oils, the average diameter of colonies was 0.7 cm against 4.79 cm for the control treatment. For the fungicides, at all four tested levels, the most efficient active ingredients were methyl tiophanate, carbendazim, tebuconazole and iprodione. The ED50 of these fungicides was <1uL/L, yielding 100% mycelial growth inhibition at all concentrations. As to the inhibition of A. ricini conidium germination, the fungicides tebuconazole and chlorotanolyl were the best at all tested concentrations, and the average of germinated conidia with these fungicides was 0.0 and 0.15%, respectively, against 100% for the control treatment. In the field, treatment with the fungicide iprodione was the best for the disease control when compared to biological and alternative treatments. Under field conditions, the average disease severity for the treatment with iprodione was 15.76% against 95.81% for the inoculated control.

4536 downloads Cited 2 times in SciELO

Protozooplankton and its relationship with environmental conditions in 13 water bodies of the Mogi-Guaçu basin - SP, Brazil
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Bagatini, Inessa Lacativa

; Spínola, Ana Lúcia Gerardi

; Peres, Bianca de Miranda

; Mansano, Adrislaine da Silva

; Rodrigues, Mafalda Alexandra Antunes

; Batalha, Marco Antônio Portugal Luttembarck

; Lucca, José Valdecir de

; Godinho, Mirna Januária Leal

; Tundisi, Takako Matsumura

; Seleghim, Mirna Helena Regali

Biota Neotropica

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dec 2013, Volume 13 N. 4 Pages 152 - 163

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

O protozooplâncton é um componente importante da rede trófica microbiana de ambientes aquáticos e sua composição, densidade e distribuição refletem os aspectos físicos, químicos e bióticos do ambiente. Considerando a escassa literatura sobre protozoários de água doce no Brasil e sobre sua ecologia em ambientes subtropicais, inventariamos os táxons de ciliados e amebas em 13 corpos d'água do Estado de São Paulo e analisamos a variação na abundância dos gêneros/espécies de maior incidência em relação às variáveis ambientais. Coletamos duas amostras por ambiente, fixando-as com cloreto de mercúrio e corando-as com azul de bromofenol para posterior quantificação e identificação em microscópio ótico. Identificamos 74 gêneros de ciliados e amebas, e os Ciliophora dominaram na maioria dos ambientes. A subclasse Stichotrichia ocorreu em todos os ambientes, predominando em cinco deles, especialmente pela ocorrência o gênero Halteria. A Análise de Correspondência Canônica mostrou que as concentrações de nitrito e nitrato são as principais variáveis que explicam a distribuição dos gêneros Limnostrombidium, Urotricha e Vorticella. O aumento na concentração de oxigênio dissolvido, condutividade, temperatura e concentração de fosfato particulado afetou positivamente a densidade dos gêneros Halteria e Coleps e da espécie Cinetochilum margaritaceum, que foi ainda influenciada negativamente pelo aumento nas concentrações de nitrito e nitrato. Considerando-se que foi realizada apenas uma coleta, a riqueza de espécies foi alta quando comparada à média de taxa encontrada para corpos d'água do Estado de São Paulo. O ambiente mais rico, Lagoa do Diogo, localiza-se em uma estação ecológica, confirmando a necessidade de mais pesquisas sobre a diversidade em ambientes menos impactados.

Protozooplankton is an important component of the aquatic microbial food webs and its composition, density, and distribution reflect the chemical, physical, and biological aspects of the environment. Considering the scarce literature on freshwater protozoans in Brazil and on protozoan ecology in subtropical environments, we listed the ciliates and amoebae taxa found in 13 water bodies in São Paulo State and analyzed their abundance in relation to the environmental variables. We collected two samples in each environment, fixed immediately with mercuric chloride and stained with bromophenol blue. After microscopical analysis, 74 protozoan genera were identified and the Ciliophora were dominant in the majority of the environments. The Stichotrichia, represented mostly by the genus Halteria, occurred in all environments, and was the dominant subclass in five of them. The canonic correspondence analysis of the most frequent genera and the environmental variables showed that nitrite and nitrate were the variables that better explained the distribution of Limnostrombidium, Urotricha, and Vorticella. The densities of the genera Halteria, Coleps, and of the species Cinetochilum margaritaceum were positively affected by increasing concentrations of dissolved oxygen, particulate phosphate, conductivity, and temperature. C. margaritaceum were also negatively affected by increasing concentrations of nitrite and nitrate. Considering that we made only one sampling in each environment, the richness was high compared to the mean diversity of lakes in the São Paulo State. The Diogo Lake, located in an ecological reserve, was the richest one, confirming the need of more research on the biodiversity of more preserved environments.

https://doi.org/10.1590/S1676-06032013000400016 2788 downloads

The role of historical and ecological factors on initial survival of Copaifera langsdorffii Desf. (Fabaceae)
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Fagundes, Marcílio

; Costa, Fernanda Vieira da

; Antunes, Suélen Ferreira

; Maia, Maria Luiza Bicalho

; Queiroz, Antônio César Medeiros de

; Oliveira, Leonardo Queiroz

; Faria, Maurício Lopes de

Acta Botanica Brasilica

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dec 2013, Volume 27 N. 4 Pages 680 - 687

Abstract: En | Text: En | PDF: En

The plant population dynamic is affected by ecological and evolutionary processes that operate at all stages of the plant life cycle. The aim of this study was to characterize the seed and seedling performance of Copaifera langsdorffii by testing four hypotheses: the resource concentration hypothesis; the relationship between seed size and germinability hypothesis; the relationship between seed size and seedling vigor hypothesis; and the intraspecific seedling competition hypothesis. All seeds used in the experiments were collected from 35 C. langsdorffii plants located in a fragment of the Brazilian cerrado (savanna). The number of fruits per plant negatively affected Rhinochenus brevicollis attacks on C. langsdorffii seeds. Therefore, this result does not support the resource concentration hypothesis, and predator satiation was used in order to explain the observed result. In general, seed germinability (percentage and time to emergence) was not influenced by seed size. The homogeneity of the experimental design, together with an abundant water supply, may have masked the effects of seed size on germinability. Seed size positively affected seedling development, corroborating the expected relationship between seed size and seedling vigor. The number of seedling per plastic bags negatively affected the growth of C. langsdorffii. The nutrient-limited soil probably promoted the below-ground competition for nutrients among seedlings. Finally, the role of evolutionary and ecological factors on C. langsdorffii population dynamics is discussed.

https://doi.org/10.1590/S0102-33062013000400005 1995 downloads Cited 4 times in SciELO

10.

Variation in the ureide content of Jack Bean during the reproductive stages in response to nitrate
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Camargos, Liliane Santos

; Aguiar, Leandro Ferreira

; Carmezini, José Antônio

; Azevedo, Ricardo Antunes

Brazilian Archives of Biology and Technology

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jun 2009, Volume 52 N. 3 Pages 581 - 585

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

Nitrogênio é o nutriente mineral mais limitante e importante para produção vegetal e o entendimento de como esse elemento é assimilado e como seu metabolismo é regulado, são essenciais para plantas cultivadas. O objetivo deste trabalho foi estudar as variações no metabolismo de nitrogênio em Canavalia ensiformis, em resposta ao nitrato, durante o período reprodutivo. A dose de nitrato fornecida mudou as concentrações de udeídeos exportados via xilema, enquanto alterações no estádio de desenvolvimento mostrou influenciar a forma de ureídeo exportado via xilema. Considerando o nível de ureídeos como um indicador do status da fixação biológica, é possível dizer que a fixação do nitrogênio pode ter sido afetada na presença do nitrato em C. ensiformis.

Nitrogen is frequently the limiting mineral nutrient for plant productivity and it is essential to obtain an understanding of how this element is assimilated and its metabolism regulated, in crop plants. The objective of this work was to study nitrogen metabolism in the tropical legume Canavalia ensiformis, a plant species used as a green manure. The nitrate dose provided changed the concentrations of ureides exported via the xylem, whilst the developmental stage alterations demonstrated to influence the form of ureide exported via the xylem. Considering the content of ureides as an indicator of N-fixation status, it could be concluded that N-fixation was affected in the presence of nitrate in C. ensiformis.

2581 downloads

11.

Indução de resistência sistêmica à antracnose em feijoeiro-comum pela raça delta avirulenta de Colletotrichum lindemuthianum
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Campos, Ângela Diniz

; Hampe, Magdolna Maria Vozarí

; Ferreira, Alfredo Gui

; Antunes, Irajá Ferreira

; Castro, Luis Antônio Suita de

Pesquisa Agropecuária Brasileira

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jan 2009, Volume 44 N. 1 Pages 15 - 21

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

O objetivo deste trabalho foi avaliar o potencial da raça delta avirulenta do fungo Colletotrichum lindemuthianum, como protetora contra raças virulentas deste fungo e quanto à capacidade de induzir resistência sistêmica em feijoeiro-comum (Phaseolus vulgaris). Quatro cultivares de feijoeiro foram avaliadas quanto às alterações nas atividades de beta 1,3 glucanase e quitinase, em dois estádios de desenvolvimento (V2 e R6), três dias após a aplicação de suspensão de esporos de C. lindemuthianum raça delta avirulenta, em comparação com aplicações de água e ácido salicílico. As plantas foram, então, infectadas com o patótipo virulento 33/95 de C. lindemuthianum em suspensão e, depois de cinco dias, foram reavaliadas quanto à atividade das enzimas. Observaram-se acréscimos significativos nas atividades da beta 1,3 glucanase e quitinase, após inoculação do fungo indutivo, nas duas avaliações, nos dois estádios de desenvolvimento. As atividades da beta 1,3 glucanase e da quitinase variaram entre as cultivares e entre os estádios de desenvolvimento das plantas. A correlação entre o índice de severidade da doença e a atividade das enzimas foi altamente significativa. O uso de C. lindemuthianum raça delta avirulenta diminuiu a severidade da doença e pode ter potencial para controlar a antracnose do feijoeiro.

The objectives of this work were to evaluate the potential of the avirulent delta race of Colletotrichum lindemuthianum as a protector against virulent races of this fungus and induce systemic resistance to anthracnose in common bean (Phaseolus vulgaris). Four common bean cultivars were evaluated for changes in the activities of beta-1,3-glucanase and chitinase at two common bean developmental stages, V2 and R6, three days after the infection with delta race of C. lindemuthianum, in comparison with control applications of water and salicylic acid. The plants were then infected with a spore suspension of 33/95, a virulent C. lindemuthianum patotype and reevaluated five days later for the enzyme activities. Significant increases in the activities of both beta-1,3-glucanase and chitinase were observed after inoculation of inductive fungus at the two evaluation periods, at both plant development stages. The activities of both beta-1,3-glucanase and chitinase varied among cultivars and among plant development stages. A significant correlation was observed between the disease severity and the enzyme activity. The avirulent delta race of C. lindemuthianum reduced the severity of anthracnose on common bean and may have the potential to control the disease.

3372 downloads Cited 3 times in SciELO

12.

Desempenho motor. Um estudo normativo e criterial em crianças da Região Autónoma da Madeira, Portugal
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Afonso, Gil H.

; Freitas, Duarte L.

; Carmo, José M.

; Lefevre, Johan A.

; Almeida, Maria J.

; Lopes, Vítor P.

; Neves, Ana C.

; Rodrigues, Ana J.

; Antunes, António M.

; Esteves, Carlos M.

; Conceição, Luís P.

; Gouveia, Élvio R.

; Fernandes, Francisco J.

; Maia, José A.

Revista Portuguesa de Ciências do Desporto

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2009, Volume 9 N. 2-3 Pages 160 - 174

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

O objectivo central do presente estudo foi construir valores de referência para as habilidades de locomoção e de manipulação em crianças da Região Autónoma da Madeira, Portugal. A amostra envolveu 853 crianças, 426 rapazes e 427 raparigas, com idades compreendidas entre os 3 aos 10 anos, que participaram na pesquisa ‘Crescer com Saúde na Região Autónoma da Madeira’. As habilidades motoras foram avaliadas através do ‘Test of Gross Motor Development’. As crianças madeirenses apresentaram uma melhoria de resultados com a idade, na quase totalidade das habilidades motoras. Os rapazes foram mais proficientes do que as raparigas nas habilidades de manipulação. O maior número de crianças madeirenses foi classificado na categoria ‘médio’ nas habilidades de locomoção (51.5%) e de manipulação (37.7%). As crianças madeirenses apresentaram equivalentes etários abaixo da média nas habilidades de locomoção (86.5%) e de manipulação (87.7%). Um aumento de mestria com a idade foi observado na corrida, galope, deslocamento lateral, drible, agarrar e lançamento por cima do ombro. As crianças madeirenses apresentaram desempenhos inferiores relativamente às norte-americanas. Os resultados da presente pesquisa devem fomentar a investigação e conduzir à implementação de programas na escola e demais instituições com o objectivo de promover o normal crescimento e desenvolvimento motor das nossas crianças.

The main purpose of this study was to provide reference values for locomotor and object control skills in children from Autonomous Region of Maderia, Portugal. The sample involved 853 individuals, 426 boys and 427 girls, from 3 to 10 year old, which participated in the ‘Growth with Health in Autonomous Region of Maderia’. Motor skills were assessed by the ‘Test of Gross Motor Development’. Madeira children presented improvements with age, in almost all the fundamental motor skills. The boys were a bit more proficient than girls on the object control skills. The largest number of Madeira children was classified at the ‘average’ category related to the locomotor (51, 5%) and object control skills (37, 7%). Madeira children showed age equivalents bellow the average in locomotor (86.5%) and object control (87.7%) skills. Increases on the mastery were observed for run, gallop, slide, stationary dribble and overhead throw. Children from Autonomous Region of Madeira presented lower results comparatively to North-American peers. Our data should encourage the research and lead to the implementation of programmes in schools and other institutions with the purpose of promoting the normal growth and motor development of Madeira children and youth.

5270 downloads

13.

Caracterização fenotípica e molecular de genitores de feijão tipo carioca quanto à resistência a patógenos
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Melo, Carlos Lasaro Pereira de

; Ragagnin, Vilmar Antônio

; Arruda, Klever Marcio Antunes

; Barros, Everaldo Gonçalves de

; Carneiro, Pedro Crescêncio Souza

; Paula Júnior, Trazilbo José de

; Moreira, Maurilio Alves

; Carneiro, José Eustáquio de Souza

Pesquisa Agropecuária Brasileira

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apr 2008, Volume 43 N. 4 Pages 495 - 504

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

O objetivo deste estudo foi a caracterização fenotípica e molecular de 31 genótipos de feijão do tipo carioca, quanto à resistência aos patógenos da antracnose, ferrugem e mancha-angular. Foram realizadas inoculações com 13 patótipos de Colletotrichum lindemuthianum, dois de Uromyces appendiculatus e sete de Pseudocercospora griseola. Na caracterização molecular, foram utilizados cinco marcadores moleculares previamente identificados, ligados a diferentes alelos de resistência aos patógenos. Sete genótipos apresentaram resistência a 12 patótipos de C. lindemuthianum. Nove genótipos apresentaram resistência a cinco patótipos de P. griseola. Dez genótipos foram resistentes aos patótipos de U. appendiculatus. As linhagens VC 2, VC 3 e VC 5, além da Rudá-R (linhagem piramidada com cinco genes que conferem resistência a alguns patótipos de antracnose, ferrugem e mancha-angular), foram as que se destacaram quanto à resistência múltipla aos patógenos acima citados. Foi detectado polimorfismo molecular entre a maioria dos genótipos com a Rudá-R, o que indica a possibilidade de uso dos marcadores moleculares SCARF10, SCARY20, SCARAZ20, SCARH13 e OPX11.

The present study aimed at the phenotypic and molecular characterization of 31 genotypes of the carioca-type common bean regarding the resistance to anthracnose, rust and angular leaf spot (ALS) pathogens. Thirteen pathotypes of Colletotrichum lindemuthianum, two of Uromyces appendiculatus and seven of Pseudocercospora griseola were inoculated. In the molecular characterization, five molecular markers, identified in advance, and linked to the different alleles of pathogens' resistance, were used. Seven genotypes showed resistance to 12 pathotypes of C. lindemuthianum. Nine genotypes presented resistance to five pathotypes of P. griseola. Ten genotypes were resistant to the pathotypes of U. appendiculatus. The lines VC 2, VC 3 and VC 5, besides Rudá-R (line pyramided with five genes which confer resistance to some pathotypes of anthracnose, rust and ALS), were the stood out for multiple resistance to the pathogens above described. Molecular polymorphism was detected between the most genotypes with Rudá-R, which indicates the possibility of using the molecular markers SCARF10, SCARY20, SCARAZ20, SCARH13 and OPX11.

2221 downloads

14.

Prognostic relevance of the histological subtype of renal cell carcinoma
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Dall'Oglio, Marcos F.

; Antunes, Alberto A.

; Pompeo, Antonio C.

; Mosconi, Alcides

; Leite, Katia R. M.

; Srougi, Miguel

International braz j urol

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feb 2008, Volume 34 N. 1 Pages 3 - 8

Abstract: En | Text: En | PDF: En

OBJECTIVE: According to several studies, when the histological subtype of renal cell carcinoma is established it is possible to attribute a different life expectancy to each patient. We analyzed the prognostic significance of the histological subtype in renal cell carcinoma. MATERIALS AND METHODS: The authors retrospectively analyzed the follow-up of 230 patients after radical or conservative renal surgery. The histological characteristics of the different subtypes of tumor were obtained and the disease-free and cancer-specific survival curves for the clear cell, cromophobic, papillary, collecting duct (Bellini) subtypes and those with sarcomatoid differentiation were individualized. RESULTS: The disease-free and cancer-specific survival rates for clear cell tumors were 76.6% and 68.0% respectively, 71.2% and 82.1% respectively for the cromophobic type, 71.1% and 79.8% respectively for the papillary type, 26.9% and 39.3% respectively for the sarcomatoid type, and 0.0% and 0.0% respectively for the collecting ducts (p < 0.001). CONCLUSION: The histological subtypes of renal tumors can stratify patients into different prognostic groups only when the sarcomatoid differentiation is present.

3393 downloads

15.

Long term evaluation of functional and morphological bladder alterations on alloxan-induced diabetes and aging: experimental study in rats
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Rodrigues Jr, Antonio Antunes

; Suaid, Haylton Jorge

; Tucci Jr, Silvio

; Fazan, Valéria Paula Sassoli

; Foss, Milton César

; Cologna, Adauto José

; Martins, Antonio Carlos Pereira

Acta Cirúrgica Brasileira

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2008, Volume 23 Suppl. 1 Pages 53 - 58

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

OBJETIVOS: avaliar alterações estruturais e funcionais da bexiga de ratos machos, associadas ao diabetes induzido por aloxano e ao envelhecimento. MÉTODOS: três grupos de animais: A - 8 semanas de idade; B- 44 semanas de idade; C - 44 semanas de idade com diabetes induzido por aloxano, foram avaliados. Realizadas medidas de espessura da camada muscular, fibrose de matriz extracelular e quantidade de colágeno, através de análise de imagem digital dos tecidos. Realizados também testes cistométricos, antes da desnervação vesical cirúrgica (DVC), para avaliar capacidade vesical (CV), intensidade máxima de contração vesical (IMCV) e complacência vesical. Após a DVC, foram avaliadas capacidade vesical após a desnervação (CVAD), complacência vesical (CV) e pressão de perda uretral (PPU). RESULTADOS: não foi observada hipertrofia da camada muscular nas bexigas; houve diminuição da concentração de fibrose da matriz extracelular e diminuição da força contrátil, e aumento da capacidade vesical no grupo C. CONCLUSÕES: a atrofia da camadas muscular da bexiga esta relacionada ao diabetes induzido por aloxano. O envelhecimento, como fenômeno isolado, provoca alterações nos parâmetros funcionais, porém associado ao diabetes, gera alterações na IMCV, CV e CVAD. Existe correlação entre alterações estruturais e funcionais nos animais diabéticos após a desnervação.

PURPOSE: to evaluate structural and functional effects of Alloxan- induced diabetes and aging on bladder of rats. METHODS: evaluations were performed in three groups: A - 8 weeks of age, B - 44 weeks of age, C - 44 weeks of age with alloxan-induced diabetes. Muscle layer thickness, extracellular matrix fibrosis and collagen were quantified on digital images of bladder samples. Cystometric evaluations before surgical vesical denervation (SVD), included maximum cystometric capacity (MCC), maximum bladder pressure (MBP), bladder contraction frequency (VCF), duration of bladder contraction (DC), threshold pressure (TP) and bladder compliance (BC). After SVD, maximum cystometric capacity (MCC), BC and maximum urethral closing pressure (MUCP) were also measured. RESULTS: Reduced extracellular matrix fibrosis concentration and contraction strength were found in the bladders of group C. Before SVD, bladder compliance was not different between groups. Alterations were observed in MCC after SVD. CONCLUSIONS: We did not notice smooth muscle hypertrophy in Alloxan-induced diabetic rats after 44 weeks. There was alteration in the total and relative amount of fibrosis and collagen. The cystometric studies support the idea that this morphological alterations are important to determine the different bladder functional patterns found in the aging and the Alloxan-induced diabetic animals.

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