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1.
The Program for Biodiversity Research in Brazil: The role of regional networks for biodiversity knowledge, dissemination, and conservation
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ROSA, CLARISSA
; BACCARO, FABRICIO
; CRONEMBERGER, CECILIA
; HIPÓLITO, JULIANA
; BARROS, CLAUDIA FRANCA
; RODRIGUES, DOMINGOS DE JESUS
; NECKEL-OLIVEIRA, SELVINO
; OVERBECK, GERHARD E.
; DRECHSLER-SANTOS, ELISANDRO RICARDO
; ANJOS, MARCELO RODRIGUES DOS
; FERREGUETTI, ÁTILLA C.
; AKAMA, ALBERTO
; MARTINS, MARLÚCIA BONIFÁCIO
; TOMAS, WALFRIDO MORAES
; SANTOS, SANDRA APARECIDA
; FERREIRA, VANDA LÚCIA
; CUNHA, CATIA NUNES DA
; PENHA, JERRY
; PINHO, JOÃO BATISTA DE
; SALIS, SUZANA MARIA
; DORIA, CAROLINA RODRIGUES DA COSTA
; PILLAR, VALÉRIO D.
; PODGAISKI, LUCIANA R.
; MENIN, MARCELO
; BÍGIO, NARCÍSIO COSTA
; ARAGÓN, SUSAN
; MANZATTO, ANGELO GILBERTO
; VÉLEZ-MARTIN, EDUARDO
; SILVA, ANA CAROLINA BORGES LINS E
; IZZO, THIAGO JUNQUEIRA
; MORTATI, AMANDA FREDERICO
; GIACOMIN, LEANDRO LACERDA
; ALMEIDA, THAÍS ELIAS
; ANDRÉ, THIAGO
; SILVEIRA, MARIA AUREA PINHEIRO DE ALMEIDA
; SILVEIRA, ANTÔNIO LAFFAYETE PIRES DA
; MESSIAS, MARILUCE REZENDE
; MARQUES, MARCIA C.M.
; PADIAL, ANDRE ANDRIAN
; MARQUES, RENATO
; BITAR, YOUSZEF O.C.
; SILVEIRA, MARCOS
; MORATO, ELDER FERREIRA
; PAGOTTO, RUBIANI DE CÁSSIA
; STRUSSMANN, CHRISTINE
; MACHADO, RICARDO BOMFIM
; AGUIAR, LUDMILLA MOURA DE SOUZA
; FERNANDES, GERALDO WILSON
; OKI, YUMI
; NOVAIS, SAMUEL
; FERREIRA, GUILHERME BRAGA
; BARBOSA, FLÁVIA RODRIGUES
; OCHOA, ANA C.
; MANGIONE, ANTONIO M.
; GATICA, AILIN
; CARRIZO, MARÍA CELINA
; RETTA, LUCÍA MARTINEZ
; JOFRÉ, LAURA E.
; CASTILLO, LUCIANA L.
; NEME, ANDREA M.
; RUEDA, CARLA
; TOLEDO, JOSÉ JULIO DE
; GRELLE, CARLOS EDUARDO VIVEIROS
; VALE, MARIANA M.
; VIEIRA, MARCUS VINICIUS
; CERQUEIRA, RUI
; HIGASHIKAWA, EMÍLIO MANABU
; MENDONÇA, FERNANDO PEREIRA DE
; GUERREIRO, QUÊZIA LEANDRO DE MOURA
; BANHOS, AUREO
; HERO, JEAN-MARC
; KOBLITZ, RODRIGO
; COLLEVATTI, ROSANE GARCIA
; SILVEIRA, LUÍS FÁBIO
; VASCONCELOS, HERALDO L.
; VIEIRA, CECÍLIA RODRIGUES
; COLLI, GUARINO RINALDI
; CECHIN, SONIA ZANINI
; SANTOS, TIAGO GOMES DOS
; FONTANA, CARLA S.
; JARENKOW, JOÃO A.
; MALABARBA, LUIZ R.
; RUEDA, MARTA P.
; ARAUJO, PUBLIO A.
; PALOMO, LUCAS
; ITURRE, MARTA C.
; BERGALLO, HELENA GODOY
; MAGNUSSON, WILLIAM E.
.
























































































Abstract The Program for Biodiversity Research (PPBio) is an innovative program designed to integrate all biodiversity research stakeholders. Operating since 2004, it has installed long-term ecological research sites throughout Brazil and its logic has been applied in some other southern-hemisphere countries. The program supports all aspects of research necessary to understand biodiversity and the processes that affect it. There are presently 161 sampling sites (see some of them at Supplementary Appendix), most of which use a standardized methodology that allows comparisons across biomes and through time. To date, there are about 1200 publications associated with PPBio that cover topics ranging from natural history to genetics and species distributions. Most of the field data and metadata are available through PPBio web sites or DataONE. Metadata is available for researchers that intend to explore the different faces of Brazilian biodiversity spatio-temporal variation, as well as for managers intending to improve conservation strategies. The Program also fostered, directly and indirectly, local technical capacity building, and supported the training of hundreds of undergraduate and graduate students. The main challenge is maintaining the long-term funding necessary to understand biodiversity patterns and processes under pressure from global environmental changes.
2.
Topography of 11C-Pittsburgh compound B uptake in Alzheimer’s disease: a voxel-based investigation of cortical and white matter regions
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Faria, Daniele de P.
; Duran, Fabio L.
; Squarzoni, Paula
; Coutinho, Artur M.
; Garcez, Alexandre T.
; Santos, Pedro P.
; Brucki, Sonia M.
; de Oliveira, Maira O.
; Trés, Eduardo S.
; Forlenza, Orestes V.
; Nitrini, Ricardo
; Buchpiguel, Carlos A.
; Busatto Filho, Geraldo
.













Objective: To compare results of positron emission tomography (PET) with carbon-11-labeled Pittsburgh compound B (11C-PIB) obtained with cerebellar or global brain uptake for voxel intensity normalization, describe the cortical sites with highest tracer uptake in subjects with mild Alzheimer’s disease (AD), and explore possible group differences in 11C-PIB binding to white matter. Methods: 11C-PIB PET scans were acquired from subjects with AD (n=17) and healthy elderly controls (n=19). Voxel-based analysis was performed with statistical parametric mapping (SPM). Results: Cerebellar normalization showed higher 11C-PIB uptake in the AD group relative to controls throughout the cerebral cortex, involving the lateral temporal, orbitofrontal, and superior parietal cortices. With global uptake normalization, greatest cortical binding was detected in the orbitofrontal cortex; decreased 11C-PIB uptake in white matter was found in the posterior hippocampal region, corpus callosum, pons, and internal capsule. Conclusion: The present case-control voxelwise 11C-PIB PET comparison highlighted the regional distribution of amyloid deposition in the cerebral cortex of mildly demented AD patients. Tracer uptake was highest in the orbitofrontal cortex. Decreased 11C-PIB uptake in white-matter regions in this patient population may be a marker of white-matter damage in AD.
https://doi.org/10.1590/1516-4446-2017-0002
1643 downloads
3.
Exposure of Toxocara canis eggs to Purpureocillium lilacinum as a biocontrol strategy: an experimental model evaluation
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Maia Filho, Fernando de Souza
; Fonseca, Anelise de Oliveira da Silva
; Valente, Júlia de Souza Silveira
; Baptista, Cristiane Telles
; Moreira, Andrios da Silva
; Botton, Sônia de Avila
; Pötter, Luciana
; Pereira, Daniela Isabel Brayer
.








Revista Brasileira de Parasitologia Veterinária
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Resumo Purpureocillium lilacinum é um fungo nematófago com potencial para uso no controle biológico de parasitos, incluindo Toxocara canis. Este estudo pesquisou a infectividade de ovos de T. canis embrionados após exposição ao fungo P. lilacinum . Ovos de T. canis foram expostos ao fungo por 15 ou 30 dias e subsequentemente administrados a camundongos Swiss (n=20). O grupo controle consistiu de camundongos que receberam ovos embrionados do parasita sem exposição ao fungo. Quarenta e oito horas após a infecção, coração, pulmão e fígado dos camundongos foram coletados para avaliar a recuperação larval. Os órgãos dos animais que receberam ovos embrionados expostos ao fungo apresentaram menor média de recuperação larval (P<0,05) do que os infectados com ovos sem exposição ao fungo, sugerindo que a exposição dos ovos de T. canis a P. lilacinum foi capaz de reduzir a infecção experimental. Nas condições avaliadas, o tempo de interação entre o fungo e os ovos do parasito não foi um fator significativo na recuperação das larvas. P. lilacinum pode ser considerado um promissor agente de controle biológico de T. canis, no entanto, mais estudos são necessários para avaliar o emprego deste fungo como um agente de controle biológico.
Abstract Purpureocillium lilacinum is a nematophagous fungus used in biological control against some parasites, including Toxocara canis. This study researched the infectivity of embryonated T. canis eggs after exposure to the fungus P. lilacinum. T. canis eggs were exposed to P. lilacinum for 15 or 30 days and subsequently administered to Swiss mice (n=20). Control group consisted of mice who received T. canis embryonated eggs without fungal exposure. Forty-eight hours after infection, heart, lung, and liver from animals of each group were collected to assess larval recovery. The organs of mice that received embryonated eggs exposed to the fungus showed a lower average larval recovery (P<0.05) suggesting that exposure of T. canis eggs to P. lilacinum was able to reduce experimental infection. Under the evaluated conditions, the interaction time between the fungus and the parasite eggs was not a significant factor in larvae recovery. P. lilacinum may be considered a promising T. canis biological control agent. However, further studies are needed to determine a protocol for the use of this fungus as a biological control agent.
https://doi.org/10.1590/s1984-29612019007
892 downloads
4.
1º Posicionamento Brasileiro sobre o Impacto dos Distúrbios de Sono nas Doenças Cardiovasculares da Sociedade Brasileira de Cardiologia
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Drager, Luciano F.
; Lorenzi-Filho, Geraldo
; Cintra, Fatima Dumas
; Pedrosa, Rodrigo P.
; Bittencourt, Lia R. A.
; Poyares, Dalva
; Carvalho, Carolina Gonzaga
; Moura, Sonia Maria Guimarães Pereira Togeiro
; Santos-Silva, Rogerio
; Bruin, Pedro F. C. de
; Geovanini, Glaucylara R.
; Albuquerque, Felipe N.
; Oliveira, Wercules Antonio Alves de
; Moreira, Gustavo A.
; Ueno, Linda Massako
; Nerbass, Flávia Baggio
; Rondon, Maria Urbana Pinto Brandão
; Barbosa, Eline Rozária Ferreira
; Bertolami, Adriana
; Paola, Angelo Amato Vincenzo de
; Marques, Betânia Braga Silva
; Rizzi, Camila Futado
; Negrão, Carlos Eduardo
; Uchôa, Carlos Henrique Gomes
; Maki-Nunes, Cristiane
; Martinez, Denis
; Fernández, Edmundo Arteaga
; Maroja, Fabrizio U.
; Almeida, Fernanda R.
; Trombetta, Ivani C.
; Storti, Luciana J.
; Bortolotto, Luiz Aparecido
; Mello, Marco Túlio de
; Borges, Melania Aparecida
; Andersen, Monica Levy
; Portilho, Natanael de Paula
; Macedo, Paula
; Alves, Rosana
; Tufik, Sergio
; Fagondes, Simone C.
; Risso, Thaís Telles
.









































https://doi.org/10.5935/abc.20180154
8719 downloads
5.
Leaves from the Tree Poincianella pluviosa as a Renewable Source of Antiplasmodial Compounds against Chloroquine-Resistant Plasmodium falciparum
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Souza, Jacqueline E. de
; Nascimento, Maria F. A. do
; Borsodi, Maria P.G.
; Almeida, Ana P. de
; Rossi-Bergmann, Bartira
; Oliveira, Alaíde B. de
; Costa, Sônia S.
.







Journal of the Brazilian Chemical Society
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Poincianella pluviosa is a tree whose stem bark is reputed to have antidiarrheal, wound healing, antitumoral and antimalarial properties. Considering that the leaves of the tree are a more abundant and renewable source than the stem bark, we chose to study the antimalarial potential of this organ part. The aqueous leaf extract exhibited a rich phenolic profile. It was active (IC50= 6.88 ± 1.64 µg mL-1) against chloroquine resistant Plasmodium falciparum (W2) without toxicity to HepG2 A16 cells. The organic fraction was more active (IC50= 1.83 µg mL-1) than the aqueous leaf extract itself. Ten phenolic compounds were obtained from the latter. This is the first report on the phenolic composition of P. pluviosa leaves. Ellagic acid (IC50= 0.215 ± 0.007 µg mL-1) proved to be 32 fold more active than the aqueous leaf extract itself. Considering their renewable aspect, leaves of P. pluviosa appear to be a more interesting source of antimalarial compounds than stem bark.
https://doi.org/10.21577/0103-5053.20170228
853 downloads
6.
Six new species of Poeciloderrhis from Brazil (Blattaria: Blaberidae) with a new record and a new combination
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ABSTRACT In this contribution six new species of Poeciloderrhis Stål, 1874 are described: P. aureolatus sp. nov. (Holotype male in MNRJ: Brazil, Rio de Janeiro State), P. mediansclerostylatus sp. nov. (Holotype male in MNRJ: Brazil, Rio de Janeiro State), P. diamantinensis sp. nov. (Holotype male in MNRJ: Brazil, Mato Grosso State), P. itatiaiensis sp. nov. (Holotype male in MNRJ: Brazil, Rio de Janeiro State), P. vanzolinii sp. nov. (Holotype male in MNRJ: Brazil, Rio de Janeiro State), and P. penduloides sp. nov. (Holotype male in MNRJ: Brazil, Rio de Janeiro State). The genus is recorded for the first time from the state of Rondônia, Brazil based on P. diamantinensis sp. nov. A new combination is proposed for Poeciloderrhis bicolorata Rocha e Silva & Lopes, 1977 that is transferred to Epilampra Burmeister, 1838. For specific delimation, the tergal modification in the abdomen, the genital plates and their respective structures were analyzed. A key for males including all species of Poeciloderrhis is also given.
https://doi.org/10.3897/zoologia.35.e12483
1685 downloads
7.
Density and diversity of filamentous fungi in the water and sediment of Araçá bay in São Sebastião, São Paulo, Brazil
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Doi, Sonia Assami
; Pinto, Aline Bartelochi
; Canali, Maria Carolina
; Polezel, Daiane Raquel
; Chinellato, Roberta Alves Merguizo
; Oliveira, Ana Julia Fernandes Cardoso de
.






Resumo A Baía do Araçá, localizada no município de São Sebastião (SP), é uma região protegida, de grande complexidade, mantendo o último remanescente preservado de manguezal entre Bertioga e Ubatuba, litoral Norte do Estado de São Paulo. Manguezal caracteriza-se com propriedades físico-químicas específicas e abriga grande diversidade de seres vivos, entre eles os fungos. Estes microrganismos apresentam grande variedade de espécies e diferentes características morfofisiológicas com capacidade de produzir algumas enzimas de importância biotecnológica. Este trabalho teve como objetivo quantificar, isolar e identificar fungos filamentosos em amostras de água e de sedimento do manguezal da Baía do Araçá, São Sebastião, (SP). Foram realizadas 2 coletas no verão e 2 no inverno na região entremarés, medidos “in situ” os parâmetros oxigênio dissolvido (OD), temperatura, salinidade e pH. Utilizou-se a Técnica “Spread Plate” para inocular os materiais coletados, em placas com meio Potato Dextrose Agar (PDA). Foram isoladas 208 colônias (68 das amostras de água e 140 das amostras de sedimento) e identificadas pelas características morfofisiológicas. As densidades de fungos filamentosos foram maiores no sedimento em relação à água e nas coletas realizadas no inverno demonstraram maiores densidades do que no verão. Apesar de alguns parâmetros ambientais não se apresentarem ideais para o desenvolvimento dos fungos, observou-se alta quantidade de crescimento nas amostragens. Analisando as colônias isoladas, a maior diversidade e riqueza foram observadas na amostragem coletado no verão. Foram observados os gêneros Aspergillus sp, Penicillium sp, Cladosporium sp e Fusarium sp em todas as amostragens, dos quais as espécies Aspergillus fumigatus, A. terreus, Penicillium citrinum e P. chrysogenum identificados neste trabalho são considerados patogênicos mas também são espécies capazes de produzir enzimas aplicáveis em diversas atividades. A comunidade fúngica descrita apresenta a diversidade encontrada neste manguezal em relação à variedade ambiental no período estudado, sendo que muitos apresentam patogenicidade e podem ser uteis pela sua capacidade de produzir enzimas específicas aplicáveis nos estudos biotecnológicos e farmacêuticos.
Abstract Araçá Bay, located in the city of São Sebastião, São Paulo, Brazil, is a protected area of substantial complexity. It represents the last remaining mangrove swamp preserve between the cities of Bertioga and Ubatuba on the northern coast of São Paulo State. This mangrove swamp has specific physical and chemical properties, and it shelters a wide variety of life, including fungi. These microorganisms are present in a variety of species with different morphophysiological features, and they have the ability to produce enzymes of biotechnological importance. The goal of this study was to quantify, isolate, and identify filamentous fungi in water and sediment samples from the Araçá Bay mangrove swamp in São Sebastião. Two samplings were performed in the summer and two were performed in the winter. The samples were collected from intertidal zones, and dissolved oxygen (DO), temperature, salinity, and pH were measured in situ. The spread plate technique was used to inoculate the samples collected on plates with a potato dextrose agar (PDA) medium. A total of 208 colonies (68 from water samples and 140 from sediment samples) were isolated, and they were identified based on their morphological characteristics. Filamentous fungus density was higher in the sediment than in the water, and the samplings performed in the winter revealed a higher density than those performed in the summer. Though some of the environmental parameters were not ideal for fungal development, a high quantity of growth was nevertheless observed. When the isolated colonies were analyzed, the greatest diversity and species richness were found in the summer samples. The genera identified in all of the samples were Aspergillus, Penicillium, Cladosporium, and Fusarium. The pathogenic species found from these genera were Aspergillus fumigatus, A. terreus, Penicillium citrinum, and P. chrysogenum. These species are also able to produce enzymes that offer a variety of applications. The fungal community described herein represents the diversity found in this mangrove swamp during the period studied. Many of the fungus species found are pathogenic and may be useful due to their ability to produce specific enzymes applicable in the biotechnological and pharmaceutical industries.
https://doi.org/10.1590/1676-0611-bn-2017-0416
3757 downloads
8.
TRIAGEM NEONATAL DE IMUNODEFICIÊNCIAS GRAVES COMBINADAS POR MEIO DE TRECS E KRECS: SEGUNDO ESTUDO PILOTO NO BRASIL
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Kanegae, Marilia Pyles P.
; Barreiros, Lucila Akune
; Sousa, Jusley Lira
; Brito, Marco Antônio S.
; Oliveira Junior, Edgar Borges de
; Soares, Lara Pereira
; Mazzucchelli, Juliana Themudo L.
; Fernandes, Débora Quiorato
; Hadachi, Sonia Marchezi
; Holanda, Silvia Maia
; Guimarães, Flavia Alice T. M.
; Boacnin, Maura Aparecida P. V. V.
; Pereira, Marley Aparecida L.
; Bueno, Joaquina Maria C.
; Grumach, Anete Sevciovic
; Gesu, Regina Sumiko W. Di
; Santos, Amélia Miyashiro N. dos
; Bellesi, Newton
; Costa-Carvalho, Beatriz T.
; Condino-Neto, Antonio
.




















RESUMO Objetivo: Validar a quantificação de T-cell receptor excision circles (TRECs) e kappa-deleting recombination circles (KRECs) por reação em cadeia de polimerase (polymerase chain reaction, PCR) em tempo real (qRT-PCR), para triagem neonatal de imunodeficiências primárias que cursam com defeitos nas células T e/ou B no Brasil. Métodos: Amostras de sangue de recém-nascidos (RN) e controles foram coletadas em papel-filtro. O DNA foi extraído e os TRECs e KRECs foram quantificados por reação duplex de qRT-PCR. O valor de corte foi determinado pela análise de Receiver Operating Characteristics Curve, utilizando-se o programa Statistical Package for the Social Sciences (SSPS) (IBM®, Armonk, NY, EUA). Resultados: 6.881 amostras de RN foram analisadas quanto à concentração de TRECs e KRECs. Os valores de TRECs variaram entre 1 e 1.006 TRECs/µL, com média e mediana de 160 e 139 TRECs/µL, respectivamente. Três amostras de pacientes diagnosticados com imunodeficiência grave combinada (severe combined immunodeficiency, SCID) apresentaram valores de TRECs abaixo de 4/µL e um paciente com Síndrome de DiGeorge apresentou TRECs indetectáveis. Os valores de KRECs encontraram-se entre 10 e 1.097 KRECs/µL, com média e mediana de 130 e 108 KRECs/µL, e quatro pacientes com diagnóstico de agamaglobulinemia tiveram resultados abaixo de 4 KRECs/µL. Os valores de corte encontrados foram 15 TRECs/µL e 14 KRECs/µL, e foram estabelecidos de acordo com a análise da Receiver Operating Characteristics Curve, com sensibilidade de 100% para detecção de SCID e agamaglobulinemia, respectivamente. Conclusões: A quantificação de TRECs e KRECs foi capaz de diagnosticar crianças com linfopenias T e/ou B em nosso estudo, validando a técnica e dando o primeiro passo para a implementação da triagem neonatal em grande escala no Brasil.
ABSTRACT Objective: To validate the quantification of T-cell receptor excision circles (TRECs) and kappa-deleting recombination excision circles (KRECs) by real-time polymerase chain reaction (qRT-PCR) for newborn screening of primary immunodeficiencies with defects in T and/or B cells in Brazil. Methods: Blood samples from newborns and controls were collected on filter paper. DNA was extracted and TRECs, and KRECs were quantified by a duplex real-time PCR. The cutoff values were determined by receiver operating characteristic curve analysis using SPSS software (IBM®, Armonk, NY, USA). Results: Around 6,881 samples from newborns were collected and TRECs and KRECs were quantified. The TRECs values ranged between 1 and 1,006 TRECs/µL, with mean and median of 160 and 139 TRECs/µL, respectively. Three samples from patients with severe combined immunodeficiency (SCID) showed TRECs below 4/µL and a patient with DiGeorge syndrome showed undetectable TRECs. KRECs values ranged from 10 to 1,097 KRECs/µL, with mean and median of 130 and 108 KRECs/µL. Four patients with agammaglobulinemia had results below 4 KRECs/µL. The cutoff values were 15 TRECs/µL and 14 KRECs/µL and were established according to the receiver operating characteristic curve analysis, with 100% sensitivity for SCID and agammaglobulinemia detection, respectively. Conclusions: Quantification of TRECs and KRECs was able to diagnose children with T- and/or B-cell lymphopenia in our study, which validated the technique in Brazil and enabled us to implement the newborn screening program for SCID and agammaglobulinemia.
https://doi.org/10.1590/1984-0462/;2017;35;1;00013
6784 downloads
9.
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, 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, 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
.





















































































































































































































































































































































































































































Resumo Um levantamento atualizado das plantas com sementes e análises relevantes acerca desta biodiversidade são apresentados. Este trabalho se iniciou em 2010 com a publicação do Catálogo de Plantas e Fungos e, desde então vem sendo atualizado por mais de 430 especialistas trabalhando online. O Brasil abriga atualmente 32.086 espécies nativas de Angiospermas e 23 espécies nativas de Gimnospermas e estes novos dados mostram um aumento de 3% da riqueza em relação a 2010. A Amazônia é o Domínio Fitogeográfico com o maior número de espécies de Gimnospermas, enquanto que a Floresta Atlântica possui a maior riqueza de Angiospermas. Houve um crescimento considerável no número de espécies e nas taxas de endemismo para a maioria dos Domínios (Caatinga, Cerrado, Floresta Atlântica, Pampa e Pantanal), com exceção da Amazônia que apresentou uma diminuição de 2,5% de endemicidade. Entretanto, a maior parte das plantas com sementes que ocorrem no Brasil (57,4%) é endêmica deste território. A proporção de formas de vida varia de acordo com os diferentes Domínios: árvores são mais expressivas na Amazônia e Floresta Atlântica do que nos outros biomas, ervas são dominantes no Pampa e as lianas apresentam riqueza expressiva na Amazônia, Floresta Atlântica e Pantanal. Este trabalho não só quantifica a biodiversidade brasileira, mas também indica as lacunas de conhecimento e o desafio a ser enfrentado para a conservação desta flora.
Abstract An updated inventory of Brazilian seed plants is presented and offers important insights into the country's biodiversity. This work started in 2010, with the publication of the Plants and Fungi Catalogue, and has been updated since by more than 430 specialists working online. Brazil is home to 32,086 native Angiosperms and 23 native Gymnosperms, showing an increase of 3% in its species richness in relation to 2010. The Amazon Rainforest is the richest Brazilian biome for Gymnosperms, while the Atlantic Rainforest is the richest one for Angiosperms. There was a considerable increment in the number of species and endemism rates for biomes, except for the Amazon that showed a decrease of 2.5% of recorded endemics. However, well over half of Brazillian seed plant species (57.4%) is endemic to this territory. The proportion of life-forms varies among different biomes: trees are more expressive in the Amazon and Atlantic Rainforest biomes while herbs predominate in the Pampa, and lianas are more expressive in the Amazon, Atlantic Rainforest, and Pantanal. This compilation serves not only to quantify Brazilian biodiversity, but also to highlight areas where there information is lacking and to provide a framework for the challenge faced in conserving Brazil's unique and diverse flora.
https://doi.org/10.1590/2175-7860201566411
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10.
Exposure to maltreatment and urban violence in children working on the streets in São Paulo, Brazil: factors associated with street work
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Mello, Andrea F.
; Maciel, Mariana R.
; Fossaluza, Victor
; Paula, Cristiane S. de
; Grassi-Oliveira, Rodrigo
; Cavalcante-Nóbrega, Luciana P.
; Cividanes, Giuliana C.
; Soussumi, Yusaku
; Soussumi, Sonia P.
; Perissinotti, Dirce N.M.
; Bordin, Isabel A.
; Mello, Marcelo F.
; Mari, Jair J.
.













Objective: To quantitatively study the exposure to childhood maltreatment and urban violence in children from families with at least one child working on the streets and to investigate the relationship between these factors and street work. Methods: Families who participated in a nongovernmental organization (NGO) program to eliminate child labor were included. Data concerning sociodemographic characteristics, punishment methods used in the family environment against the children, five types of abuse and neglect perpetrated by the caregivers, urban violence exposure and family functioning were collected. Results: The sample included 126 children who were working on the streets and 65 siblings who were not working on the streets. Caregivers reported high levels of severe physical punishment. The children reported high levels of abuse and neglect, and high levels of urban violence exposure. The families showed a predominance of dysfunctional and unsatisfactory relationships. A multiple logistic regression model showed that age older than 12 years and severe physical punishment at home were associated with street work. Conclusion: Interventions to decrease the risk of child street work should be family-focused and should aim to reduce violence in the family environment.
https://doi.org/10.1590/1516-4446-2013-1185
2859 downloads
11.
Apresentação da Informação sobre os Alergénios Alimentares em Restauração Colectiva
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Introdução: Apesar de inofensivos para a maioria da população, os produtos ou substâncias passíveis de causar alergias e ou intolerâncias alimentares podem ser fatais para os indivíduos susceptíveis. Com a entrada em vigor do Regulamento (UE) n.º 1169/2011, todos os operadores das empresas do sector alimentar serão obrigados a disponibilizar esta informação, incluindo nos produtos não embalados. Objectivos: Apresentação da informação sobre os alergénios alimentares presentes em refeições servidas numa empresa de restauração colectiva. Metodologia: Os alergénios incluídos no estudo foram os de menção obrigatória no Regulamento. Foi feita a análise das fichas informativas fornecidas pelos fabricantes e dos rótulos dos géneros alimentícios e os dados tratados no software Predictive Analytics SoftWare, tendo os géneros alimentícios sido divididos em 15 grupos e em alimentos processados e não processados. Resultados: Conseguiu-se recolher informação de 68,1% dos géneros alimentícios e a maioria tinha pelo menos um alergénio. Mais de metade da amostra era constituída por alimentos processados, os quais continham, em média, mais alergénios, à excepção de peixe e moluscos. Do total de géneros alimentícios em estudo, cerca de 20% contêm leite e glúten, 15% sulfitos e 10% soja e peixe, sendo estes os únicos alergénios para os quais se encontraram diferenças com significado estatístico. Conclusões: Foi possível recolher e disponibilizar a informação necessária para cumprir o dever de informar o consumidor. No entanto, apesar do fabricante de géneros alimentícios pré-embalados ser obrigado actualmente a apresentar esta informação na rotulagem, registaram-se dificuldades e limitações na recolha da mesma. Este estudo assume relevância tanto a nível da restauração colectiva, como da indústria alimentar, pois demonstra que há ainda muito trabalho a fazer para alargar a oferta alimentar dos indivíduos susceptíveis, constituindo um campo de actuação a ser explorado pelos nutricionistas.
Introduction: Although inoffensive for the majority of the population, products likely to causing food allergies and or intolerances may be fatal to susceptible individuals. With the introduction of Regulation (UE) n.º 1169/2011, contract catering companies are forced to disclose this information, even on non packed foods. Objectives: Presentation of the information about food allergens present on meals served in a contract catering company. Methodology: The allergens included in the study were the mandatory by Regulation (UE) n.º 1169/2011. The foods fact sheets provided by suppliers and labels were analyzed and their data was treated with the Predictive Analytics SoftWare. The foods were divided into 15 groups and into processed and non processed foods. Results: We were able to collect information on 68,1% of the foods and the majority had, at least, one allergen. More than half of the sample was comprised of processed foods which, on average, had more allergens, with the exception of fish and mollusks. Of the total of foods in study, about 20% contain milk and gluten, 15% sulfites and 10% soy and fish. It was only for these allergens that statistically significant differences were found. Conclusions: It was possible to gather and provide the necessary information to fulfill the duty of informing the customer. However, although the manufacturer of pre-packed foods is nowadays obligated to present this information on the label, there were difficulties and limitations collecting it. This study is relevant both to contract catering and food industry, because it shows that there’s still a lot of work to be done broadening food offer to susceptible individuals. Therefore is an actuation field to be explored by nutritionists..
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12.
Brazilian vodkas have undetectable levels of ethyl carbamate
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Pereira, Elainy V. S.
; Oliveira, Sonia P. A.
; Nóbrega, Ian C. C.
; Lachenmeier, Dirk W.
; Araújo, Adelia C. P.
; Telles, Danuza L.
; Silva, Marileide
.







While in Europe vodka is mainly derived from potatoes or cereals, a large proportion of Brazilian vodka is likely obtained from sugarcane, which contains ethyl carbamate (EC) precursors. EC, in addition to several other contaminants and congeners, were investigated in 32 samples of Brazilian vodka. All samples complied with the Brazilian regulations for congeners and contaminants, having EC content below 0.01 mg/L (detection limit). These results are probably related to the processing of vodka, in particular the use of extractive and rectifying stainless steel distillation columns, which allow the production of high strength spirits with low levels of congeners and contaminants.
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13.
Fatores de risco para a leptospirose em fêmeas bovinas em idade reprodutiva no Estado da Bahia, Nordeste do Brasil
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Oliveira, Flávia C.S.
; Azevedo, Sérgio S.
; Pinheiro, Sônia R.
; Batista, Carolina S.A.
; Moraes, Zenaide M.
; Souza, Gisele O.
; Gonçales, Amane P.
; Vasconcellos, Sílvio A.
.








Foram identificados fatores de risco associados à leptospirose em fêmeas bovinas em idade reprodutiva no Estado da Bahia. Foram amostradas aleatoriamente 10.823 fêmeas bovinas com idade igual ou superior a 24 meses procedentes de 1.414 propriedades. Para o diagnóstico sorológico da infecção por Leptospira spp., foi utilizada a Soroaglutinação Microscópica (SAM) utilizando 24 sorovares como antígenos. Um rebanho foi considerado foco quando apresentou pelo menos um animal soropositivo. Das 1.414 propriedades investigadas, 1.076 (77,9%; IC 95% = 75,7-80,0%) apresentaram pelo menos um animal reagente na SAM para qualquer sorovar. O sorovar Hardjo (Hardjoprajitno) foi o mais prevalente, com 34,49% (IC 95% = 31,97-37,14%) das propriedades positivas. Presença de mais de 28 fêmeas bovinas em idade reprodutiva no rebanho (OR=2,11; p<0,001), presença de cervídeos (OR=2,02; p=0,010), compra de animais (OR=1,57; p<0,001), abate de animais na própria fazenda (OR=1,58; p=0,030) e utilização de partos compartilhados (OR=1,63; p<0,001) foram identificados como fatores de risco para leptospirose por qualquer sorovar. Os fatores de risco para leptospirose pelo sorovar Hardjo (Hardjoprajitno) foram a presença de suínos (OR=1,28; p=0, 040) e a compra de animais (OR=1,48; p<0,001).
Risk factors associated with leptospirosis were identified in cows in the state of Bahia, northeastern Brazil. A total of 10,823 cows with > 24 months of age from 1,414 herds were randomly sampled. For the serological diagnosis of Leptospira spp. infection, the microscopic agglutination test (MAT) was carried out using 24 serovars as antigens. A herd was considered positive when presented at least one seropositive animal. Of the 1,414 investigated herds, 1,076 (77.9%; 95% CI = 75.7-80.0%) presented at least one reactant animal at MAT to any serovar. Serovar Hardjo (Hardjoprajitno) was the most prevalent, with 34.49% (95% CI = 31.97-37.14%) of the positive herds. Presence of more than 28 bovine females in reproductive age (OR=2.11; p<0.001), presence of cervids (OR=2.02; p=0.010), animal purchase (OR=1.57; p<0.001), to slaughter animals in the property (OR=1.58; p=0.030) and to share pasture (OR=1.63; p<0.001) were identified as risk factors for leptospirosis due to any serovar. Risk factors for leptospirosis due to serovar Hardjo (Hardjoprajitno) were presence of swine (OR=1.28; p=0.040) and animal purchase (OR=1.48; p<0.001).
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14.
Vegetative propagation in Piperaceae species
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Souza, Luiz Antonio de
; Moscheta, Ismar Sebastião
; Mourão, Káthia Socorro Mathias
; Albiero, Adriana Lenita Meyer
; Iwazaki, Maísa de Carvalho
; Oliveira, Jonathas Henrique Georg de
; Rosa, Sônia Maciel da
.







Brazilian Archives of Biology and Technology
- Journal Metrics
Espécies de Piperaceae de remanescentes florestais de Maringá, Paraná, Brasil apresentam propagação vegetativa por meio de raiz ou caule (estolão). Este tipo de reprodução foi verificado em Piper amalago L., Piper arboreum Aublet, Piper xylosteoides (Kunth) Steud., Peperomia parnassifolia Miq. and Ottonia martiana Miq. Raiz e ramos caulinares destas espécies foram analisados anatomicamente segundo técnicas usuais. É necessário enfatizar que esse tipo de propagação em Piperaceae deve ser investigado em espécies que ocorrem em outras matas. Novos e adicionais estudos devem ser feitos para se saber se essas variações estruturais são induzidas pelo ambiente ou fixadas geneticamente.
Piperaceae species of forest remnants of Maringá, Paraná, Brazil present vegetative propagation through root or stem (stolon). This reproduction type was verified in Piper amalago L., P. arboreum Aublet, P. xylosteoides (Kunth) Steud., Peperomia parnassifolia Miq. and Ottonia martiana Miq. Root and stem branches of these species were analyzed anatomically. Results indicated that the vegetative propagation in Piperaceae should be studied in other forests. New and additional studies should be made if the structural variations were induced environmentally or fixed genetically.
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Cited 1 time in SciELO
15.
Antioxidant activity of Maytenus imbricata Mart., Celastraceae
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Silva, Grácia D. F.
; Silva, Silvia R. S.
; Barbosa, Luiz C. A.
; Duarte, Lucienir P.
; Ribeiro, Sonia M. R.
; Queiroz, José H.
; Vieira Filho, Sidney A.
; Oliveira, Márcio L. R.
.








A atividade antioxidante, poder redutor (RP) e a atividade coletora de radicais livres (FRS) usando 2,2-difenil-1-picrilhidrazil (DPPH), e a concentração de substâncias fenólicas totais dos extratos e substâncias isoladas das folhas, caules e raízes de Maytenus imbricata Mart. (Celastraceae) foram avaliados. Alguns extratos, a mistura de compostos fenólicos e epicatequina mostraram alto poder redutor e atividade antioxidante (DPPH) em comparação com o padrão butilhidroxianisol (BHA) e ácido gálhico (GA) utilizados no ensaio. O extrato acetato de etila das folhas mosraram alto teor de substâncias fenólicas e alto poder redutor e atividade antioxidante em relação aos outros extratos. Este fato indica haver alguma relação entre a concentração de substâncias fenólicas e o poder redutor. O solvente usado no processo de extração influencia a composição química dos extratos e, consequentemente, as atividades redutoras e antioxidantes.
The free radical scavenging activity (FRS) using 2,2-diphenyl-1-picrylhydrazyl (DPPH), the reducer power and the total phenolic concentration of extracts and compounds isolated from leaves, branches and roots of Maytenus imbricata Mart. (Celastraceae) were evaluated. Some extracts, a mixture of phenolic compounds (MPC) and epicatechin showed higher RP and FRS (DPPH) activities in comparison with the standard butylhydroxyanisole (BHA) and galic acid (GA) used in assays. The ethyl acetate extract from leaves showed higher total phenolic content and also higher RP and FRS (DPPH) than the other extracts. These facts indicate that there are some relations between phenolic concentration in the extract and the antioxidant activity and the reducer power. The solvent used in the extraction process influences the chemical composition of the extracts and consequently its antioxidant and reducer power activities.
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