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Nutritional evaluation and palatability of pet biscuits for dogs
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Poppi, Amanda Camila de Oliveira
; Oliveira, Gislaine Gonçalves
; Casetta, Jaisa
; Goes, Elenice Souza dos Reis
; Gasparino, Eliane
; Marques, Diogo de Oliveira
; Nogueira, Carla Cristina Alves
; Sbaraini, Sabrina Campos
; Santos, Sabrina Martins dos
; Khatlab, Angelica
; Vasconcellos, Ricardo Souza
; Cavali, Jucilene
; Dantas Filho, Jerônimo Vieira
; Souza, Maria Luiza Rodrigues de
.
Abstract The study's aim was to evaluate the microbiological, nutritional, textural quality and palatability of pet biscuits made with the inclusion of three flours. The treatments were chicken viscera flour (CVF), commercial Nile tilapia flour (FF) and mixed fish flours of several species (FVF). For the FVF, only the carcasses (backbones) of Nile tilapia, salmon, tuna and sardines were used, and they were washed, whereas FVF as well as the others were cooked for 60 minutes, then pressed, ground and dehydrated for 24 hours at 60° C. After this period, they were crushed and ground for inclusion in the biscuits. The CVF, FF and FVF flours showed 43.82%, 50.48% and 56.70% of crude protein, respectively. CVF had the highest lipid content (10.01%) and FVF had the highest ash content (23.94%) and FVF had the highest caloric value (338.63 kcal 100 g-1). The inclusion of flours in biscuits did not influence the protein and carbohydrate contents, whose average values were 18.48% and 50.23%. However, they influenced the moisture content, lipids, ash and caloric value. Biscuits with the inclusion of viscera (CVF) had the highest lipid content (5.91%) and those with fish had the highest ash content (5.66% and 5.81%) for FF and FVF. Biscuits with FVF had a lower caloric value (318.47 kcal 100 g-1). The microbiological analysis indicated that the biscuits were considered of good quality to feed dogs. Regarding texture and palatability, there was no significant difference between treatments. The inclusion of fish flour, both FF and FVF, is a viable alternative.
Resumo Objetivou-se avaliar a qualidade microbiológica e nutricional, a textura e a palatabilidade de biscoitos pet elaborados com a inclusão de três farinhas. Os tratamentos foram farinha de vísceras de frango (FVC), farinha de tilápia comercial (FF) e mix de farinhas de peixes de várias espécies (FVF). Para FVF, foram utilizadas apenas as carcaças (espinhaço) de tilápia, salmão, atum e sardinha, as quais foram lavadas. Em todos os tratamentos, as farinhas foram cozidas por 60 minutos, depois prensadas, moídas e desidratadas por 24 horas a 60 °C. Decorrido esse período, as farinhas foram trituradas e moídas para inclusão nos biscoitos. As farinhas FVC, FF e FVF apresentaram 43,82%, 50,48% e 56,70% de proteína bruta, respectivamente. A FVC apresentou maior teor lipídico (10,01%) e a FVF, maior teor de cinzas (23,94%) e o maior valor calórico (338,63 kcal 100 g-1). A inclusão das farinhas nos biscoitos não influenciou nos teores de proteína e carboidratos, cujos valores médios foram de 18,48% e 50,23%, respectivamente. Entretanto, influenciaram no teor de umidade, lipídios, cinzas e valor calórico. Os biscoitos com inclusão de vísceras (CVF) apresentaram os maiores teores de lipídeos (5,91%) e aqueles com inclusão pescado maiores teores de cinzas (5,66% e 5,81%) para FF e FVF. Os biscoitos com FVF apresentaram menor valor calórico (318,47 kcal 100 g-1). A análise microbiológica indicou que os biscoitos apresentaram qualidades apropriadas para serem fornecidos a cães. Em relação a textura e aceitabilidade, não houve diferença significativa entre os tratamentos. A inclusão de farinhas de peixe, tanto FF quanto FVF, é uma alternativa viável.
2.
Herpetofauna of protected areas in the Caatinga VIII: An updated checklist for the Serra das Confusões region with new data from Serra Vermelha, Piauí, Brazil
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Marques, Ricardo
; Garda, Adrian A.
; Furtado, Adriana P.
; Bruinjé, Andre C.
; Protázio, Arielson dos S.
; de Carvalho, Breno F.
; Vieira, Cecília R.
; Gomes, Dandara
; Pantoja, Davi L.
; Figueiredo, Diainara da S.
; Shepard, Donald B.
; Camurugi, Felipe
; Coelho, Felipe E. A.
; Magalhães, Felipe M.
; Caetano, Gabriel H. O.
; Colli, Guarino R.
; Paulino, Henrique M.
; Carvalho, Izabelle T. S.
; Graciene, Joedma
; Alvarenga, Júlio M.
; Clay, Natalie A.
; Albuquerque, Ralph L.
; Bosque, Renan J.
; Faria, Renato
; da Silveira-Filho, Ricardo R.
; Mângia, Sarah
; Cavalcante, Vitor H. G. L.
; Vieira, Washington L. S.
; da Silva, Willianilson P.
; Soares, Yan F. F.
; Mesquita, Daniel O.
.
Abstract It is repeatedly stressed the need to characterize the extant biodiversity in tropical ecosystems. However, inventory studies are still progressing slowly in dry ecosystems, leading to the underestimation of their true biodiversity and hindering conservation efforts. In this study, we present primary and secondary data, along with an updated list of amphibians and reptiles from two localities in the São Francisco-Gurguéia region in Piauí. Additionally, we compare the species composition between nine areas within the Caatinga, which were sampled using standardized methods over the past ten years, to examine broader spatial patterns of community composition. To survey reptiles and amphibians, we employed similar methods and sampling efforts in two areas within the Serra das Confusões National Park (SCNP) region. Our surveys recorded a total of 73 species of amphibians and reptiles, of which 24 are new distribution records for the SCNP region. Consequently, our findings increase the known herpetofauna in the region to 94 species. Despite their proximity, the two sites in the SCNP region exhibited only 42% similarity in species composition, and they differed significantly from other areas within the Caatinga. Furthermore, even the closer Caatinga areas presented differences in species composition, highlighting the necessity to evaluate biodiversity across the landscape and contribute to understanding biogeographic patterns.
Resumo É repetidamente enfatizada a necessidade de caracterizar a biodiversidade vivente em ecossistemas tropicais. No entanto, os estudos de inventário ainda estão progredindo lentamente em ecossistemas secos, levando à subestimação de sua verdadeira biodiversidade e dificultando os esforços de conservação. Neste estudo, apresentamos dados primários e secundários, juntamente com uma lista atualizada de anfíbios e répteis de duas localidades na região de São Francisco-Gurguéia, do Piauí. Além disso, comparamos a composição de espécies entre nove áreas dentro da Caatinga, que foram amostradas usando métodos padronizados nos últimos dez anos, para examinar padrões espaciais mais amplos de composição da comunidade. Para estudar répteis e anfíbios, utilizamos métodos e esforços de amostragem semelhantes em duas áreas na região do Parque Nacional da Serra das Confusões (PNSC). Nossos levantamentos registraram um total de 73 espécies de anfíbios e répteis, das quais 24 são novos registros de distribuição para a região do PNSC. Consequentemente, nossos resultados aumentam a herpetofauna conhecida na região para 94 espécies. Apesar da proximidade, os dois locais na região do PNSC exibiram apenas 42% de similaridade na composição de espécies e diferiram significativamente de outras áreas dentro da Caatinga. Mesmo áreas mais próximas da Caatinga apresentaram diferenças na composição de espécies, destacando a necessidade de avaliar a biodiversidade em toda a paisagem e contribuir para a compreensão de padrões biogeográficos.
3.
[SciELO Preprints] - Guideline of the Brazilian Society of Cardiology on Diagnosis and Treatment of Patients with Chagas Disease Cardiomyopathy
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Marin-Neto, José Antonio
Rassi Jr., Anis
Moraes Oliveira, Gláucia M.
Lemos Correia, Luís Claudio
Novaes Ramos Jr., Alberto
Hasslocher-Moreno, Alejandro Marcel
Luquetti Ostermayer, Alejandro
Sousa, Andréa Silvestre de
Amato Vincenzo de Paola, Angelo
Sobral de Sousa, Antonio Carlos
Pinho Ribeiro, Antonio Luiz
Correia Filho, Dalmo
Moraes de Souza, Dilma do Socorro
Cunha-Neto, Edecio
J. A. Ramires, Felix
Bacal, Fernando
Pereira Nunes, Maria do Carmo
Martinelli Filho, Martino
Ibrahim Scanavacca, Maurício
Magalhães Saraiva, Roberto
Alves de Oliveira Júnior, Wilson
M. Lorga-Filho, Adalberto
de Jesus Benevides de Almeida Guimarães, Adriana
Lopes Latado Braga, Adriana
Sarmento de Oliveira, Adriana
V. L. Sarabanda, Alvaro
Yecê das Neves Pinto, Ana
Assis Lopes do Carmo, André
Schmidt, André
Costa, Andréa Rodrigues da
Ianni, Barbara Maria
Markman Filho, Brivaldo
Eduardo Rochitte, Carlos
Thé Macedo, Carolina
Mady, Charles
Chevillard, Christophe
Bittencourt das Virgens, Cláudio Marcelo
Nery de Castro, Cleudson
De Paoli de Carvalho Britto, Constança Felícia
Pisani, Cristiano
do Carmo Rassi, Daniela
C. Sobral Filho, Dario
Rodrigues Almeida, Dirceu
A. Bocchi, Edimar
T. Mesquita, Evandro
de Souza Nogueira Sardinha Mendes, Fernanda
Pereira, Francisca Tatiana
Sperandio da Silva, Gilberto Marcelo
de Lima Peixoto, Giselle
Glotz de Lima, Gustavo
H. Veloso, Henrique
Turin Moreira, Henrique
Bellotti Lopes, Hugo
Masciarelli Francisco Pinto, Ibraim
Pinto Dias, João Carlos
Bemfica, João Marcos
Silva-Nunes, João Paulo
Soares Barreto-Filho, José Augusto
Kerr Saraiva, José Francisco
Lannes-Vieira, Joseli
Menezes Oliveira, Joselina Luzia
V. Armaganijan, Luciana
Martins, Luiz Cláudio
C. Sangenis, Luiz Henrique
Barbosa, Marco Paulo
Almeida-Santos, Marcos Antônio
Simões, Marcos Vinicius
Shikanai-Yasuda, Maria Aparecida
Vieira Moreira, Maria da Consolação
Higuchi, Maria de Lourdes
Costa Monteiro, Maria Rita de Cássia
Felix Mediano, Mauro Felippe
Maia Lima, Mayara
T. Oliveira, Maykon
Moreira Dias Romano , Minna
Nitz, Nadjar
de Tarso Jorge Medeiros, Paulo
Vieira Alves, Renato
Alkmim Teixeira, Ricardo
Coury Pedrosa, Roberto
Aras, Roque
Morais Torres, Rosália
dos Santos Povoa, Rui Manoel
Rassi, Sérgio Gabriel
Salles Xavier, Sérgio
Marinho Martins Alves , Silvia
B. N. Tavares, Suelene
Lima Palmeira, Swamy
da Silva Junior, Telêmaco Luiz
da Rocha Rodrigues, Thiago
Madrini Junior, Vagner
Maia da Costa , Veruska
Dutra, Walderez
This guideline aimed to update the concepts and formulate the standards of conduct and scientific evidence that support them, regarding the diagnosis and treatment of the Cardiomyopathy of Chagas disease, with special emphasis on the rationality base that supported it.nbsp;
Chagas disease in the 21st century maintains an epidemiological pattern of endemicity in 21 Latin American countries. Researchers and managers from endemic and non-endemic countries point to the need to adopt comprehensive public health policies to effectively control the interhuman transmission of T. cruzi infection, and to obtain an optimized level of care for already infected individuals, focusing on diagnostic and therapeutic opportunistic opportunities.
nbsp;
Pathogenic and pathophysiological mechanisms of the Cardiomyopathy of Chagas disease were revisited after in-depth updating and the notion that necrosis and fibrosis are stimulated by tissue parasitic persistence and adverse immune reaction, as fundamental mechanisms, assisted by autonomic and microvascular disorders, was well established. Some of them have recently formed potential targets of therapies.nbsp;
The natural history of the acute and chronic phases was reviewed, with enhancement for oral transmission, indeterminate form and chronic syndromes. Recent meta-analyses of observational studies have estimated the risk of evolution from acute and indeterminate forms and mortality after chronic cardiomyopathy. Therapeutic approaches applicable to individuals with Indeterminate form of Chagas disease were specifically addressed. All methods to detect structural and/or functional alterations with various cardiac imaging techniques were also reviewed, with recommendations for use in various clinical scenarios. Mortality risk stratification based on the Rassi score, with recent studies of its application, was complemented by methods that detect myocardial fibrosis.nbsp;
The current methodology for etiological diagnosis and the consequent implications of trypanonomic treatment deserved a comprehensive and in-depth approach. Also the treatment of patients at risk or with heart failure, arrhythmias and thromboembolic events, based on pharmacological and complementary resources, received special attention. Additional chapters supported the conducts applicable to several special contexts, including t. cruzi/HIV co-infection, risk during surgeries, in pregnant women, in the reactivation of infection after heart transplantation, and others.nbsp; nbsp;nbsp;
Finally, two chapters of great social significance, addressing the structuring of specialized services to care for individuals with the Cardiomyopathy of Chagas disease, and reviewing the concepts of severe heart disease and its medical-labor implications completed this guideline.
Esta diretriz teve como objetivo principal atualizar os conceitos e formular as normas de conduta e evidências científicas que as suportam, quanto ao diagnóstico e tratamento da CDC, com especial ênfase na base de racionalidade que a embasou.
A DC no século XXI mantém padrão epidemiológico de endemicidade em 21 países da América Latina. Investigadores e gestores de países endêmicos e não endêmicos indigitam a necessidade de se adotarem políticas abrangentes, de saúde pública, para controle eficaz da transmissão inter-humanos da infecção pelo T. cruzi, e obter-se nível otimizado de atendimento aos indivíduos já infectados, com foco em oportunização diagnóstica e terapêutica.
Mecanismos patogênicos e fisiopatológicos da CDC foram revisitados após atualização aprofundada e ficou bem consolidada a noção de que necrose e fibrose sejam estimuladas pela persistência parasitária tissular e reação imune adversa, como mecanismos fundamentais, coadjuvados por distúrbios autonômicos e microvasculares. Alguns deles recentemente constituíram alvos potenciais de terapêuticas.
A história natural das fases aguda e crônica foi revista, com realce para a transmissão oral, a forma indeterminada e as síndromes crônicas. Metanálises recentes de estudos observacionais estimaram o risco de evolução a partir das formas aguda e indeterminada e de mortalidade após instalação da cardiomiopatia crônica. Condutas terapêuticas aplicáveis aos indivíduos com a FIDC foram abordadas especificamente. Todos os métodos para detectar alterações estruturais e/ou funcionais com variadas técnicas de imageamento cardíaco também foram revisados, com recomendações de uso nos vários cenários clínicos. Estratificação de risco de mortalidade fundamentada no escore de Rassi, com estudos recentes de sua aplicação, foi complementada por métodos que detectam fibrose miocárdica.
A metodologia atual para diagnóstico etiológico e as consequentes implicações do tratamento tripanossomicida mereceram enfoque abrangente e aprofundado. Também o tratamento de pacientes em risco ou com insuficiência cardíaca, arritmias e eventos tromboembólicos, baseado em recursos farmacológicos e complementares, recebeu especial atenção. Capítulos suplementares subsidiaram as condutas aplicáveis a diversos contextos especiais, entre eles o da co-infecção por T. cruzi/HIV, risco durante cirurgias, em grávidas, na reativação da infecção após transplante cardíacos, e outros.nbsp;nbsp;nbsp;
Por fim, dois capítulos de grande significado social, abordando a estruturação de serviços especializados para atendimento aos indivíduos com a CDC, e revisando os conceitos de cardiopatia grave e suas implicações médico-trabalhistas completaram esta diretriz.nbsp;
4.
Methicillin resistant Staphylococcus aureus infection in vascular surgery patients
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Garcia, Rita C.
; Gonçalves, Frederico Bastos
; Garcia, Teresa
; Ferreira, Rita Soares
; Catarino, Joana
; Vieira, Isabel
; Correia, Ricardo
; Bento, Ana Rita
; Pais, Fábio
; Ribeiro, Tiago
; Cardoso, Joana
; Ferreira, Maria Emília
.
Abstract Introduction: Surgical site infections are associated with devastating consequences in vascular surgery patients but the data on Methicillin Resistant Staphylococcus aureus (MRSA) infection among those remains scant and conflicting. Most vascular surgery antibiotic prophylaxis assume that all patients submitted to surgery are tested prior to the intervention or that all patients with risk factors for MRSA are presumed to be colonized. However, the costs associated with testing all patients are not negligible, and most of the vascular surgery patients have risk factors for MRSA colonization. The purpose of this study was to evaluate the burden of MRSA clinical infection and its outcome and to adjust clinical practice accordingly. Methods: A retrospective analysis of clinical data from all patients with MRSA isolations that were submitted to vascular surgery in the year 2019 was conducted. The primary endpoint was in-hospital mortality. Secondary endpoints were timing of infection (pre-existent infection or post-surgical infection), need for ICU and length of hospital stay. Results: Out of 1681 patients admitted for surgery in the year 2019 in the vascular surgery ward, only 21 had clinical infection with positive MRSA isolates. All the patients had risk factors for MRSA colonization. Seventeen were admitted for PAD (Rutherford grade 5 or 6). Eight patients had post-operatory infections, whilst the remaining presented with MRSA infection prior to the intervention. Post-operatory infections ranged from superficial incisional in three patients, deep incisional in one patient, and organ/space/prosthesis infection in four patients (of the last group, two had prosthesis infection). There were five deaths, of which two were unrelated to the infection. Of the three deaths probably infection-related, all were post-operatory surgical site infections, and all were organ/space/prosthesis infections (one with prosthesis infection). There was no patient admitted to the ICU that survived. The mean hospital stay was increased by 26 days (31 days, 95% CI, 19-43). Conclusion: Infection by MRSA was less frequent than expected in our population, which may mean that colonization might be smaller than expected. Pre-operative infection was almost always related to chronic wounds and did not increase the risk of post-operative wound infection or death, contrary to post-operative infection, which seems to significantly increase mortality.
https://doi.org/10.48750/acv.340
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5.
Age, growth, and maturity of little tunny, Euthynnus alletteratus (Rafinesque, 1810) in southeastern Brazil
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Vieira, Juliana M.S.
; Costa, Paulo A.S.
; Braga, Adriana C.
; São-Clemente, Ricardo R.B.
; Ferreira, Carlos E.L.
; Silva, Jodir P.
.
Latin american journal of aquatic research
- Métricas do periódico
ABSTRACT This is the first attempt to assess life parameters of little tunny Euthynnus alletteratus in the southwestern Atlantic. Fin spines, liver, and gonad information from 345 fishes (330-780 mm fork length) sampled from artisanal landings between March 2018, and February 2019 were used to analyze age, growth, and sexual maturity. Age was estimated by counting and measuring increments in sectioned spines, and the von Bertalanffy growth function was used to fit length-at-age data. There was no significant difference between male and female size distributions. Gonadosomatic index peaked from November to February in both sexes, associated with the South Atlantic Central Water (SACW) upwelling in temperatures between 15-18°C. Reproduction in cold waters has never been reported before and is possibly related to a richer environment for feeding and growth of larvae. The coefficient of variation among successive readings was 9.2%. The oldest fish was 5 years, and one annual increment for 2 and 3-year-old fish was observed to form associated with SACW. Little tunny growing in southeastern Brazil shows a higher growth rate and smaller asymptotic length when compared to most stocks in Mediterranean waters. Growth was not significantly affected by sex, and the von Bertalanffy growth parameters for all fish were L∞ = 791.9 mm, k = 0.42, and t0 = −0.97 yr-1. Length at first maturity is attained by 1-year-old fish of either sex (423-492 mm), suggesting that a small proportion (8%) of juveniles was recorded from fishery landings.
https://doi.org/10.3856/vol49-issue5-fulltext-2689
89 downloads
6.
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.
.
Anais da Academia Brasileira de Ciências
- Métricas do periódico
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.
https://doi.org/10.1590/0001-3765202120201604
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7.
Selection and characterization of peptides mimetic to Campylobacter fetus subsp. venerealis using phage display
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Ribeiro, Eduardo Lara
; Fujimura, Patrícia Tiemi
; Ueira-Vieira, Carlos
; Goulart, Luiz Ricardo
; Alves, Telma Maria
; Lage, Andrey Pereira
; Heinemann, Marcos Bryan
.
RESUMO: Campilobacteriose Genital Bovina (CGB) é uma doença venérea e subclínica que causa problemas reprodutivos em rebanhos, causada por Campylobacter fetus subsp. venerealis. Este trabalho teve como objetivo selecionar peptídeos miméticos ao agente da CGB de uma biblioteca de fagos. Phage display é uma técnica que aplica bibliotecas de bacteriófagos que expõem peptídeos fusionados ao capsídeo viral em seleções biológicas contra proteínas alvo. Biopannings foram realizados para seleção biológica na biblioteca de fagos por meio de soro hiperimune de coelho e extrato proteico de C. fetus subsp. venerealis. Cinco heptapeptídeos selecionados foram considerados miméticos para Cfv-NCTC 10354 a partir de análises de bioinformática e ensaios com soro hiperimune e muco cérvico-vaginal de novilhas. ALASLPL e LSYLFPP foram os peptídeos mais reativos e considerados promissores como possíveis imunógenos miméticos para C. fetus subsp. venerealis.
ABSTRACT: Bovine genital campylobacteriosis (BGC) is a venereal and subclinical disease that affects the fertility of cattle herds, and it is caused by Campylobacter fetus subsp. venerealis . This study selected peptides mimetic to the BGC-causing agent from a phage library. Phage display is a technique that applies bacteriophage libraries that reveal peptides fused to the viral capsid in biological selections against target proteins. Biopannings were performed for biological selection in the phage library using rabbit hyperimmune serum and C. fetus subsp. venerealis protein extract. Five selected heptapeptides were considered mimetic to Cfv-NCTC 10354 based on the results of bioinformatics analysis and assays with hyperimmune serum and cervicovaginal mucus obtained from heifers. ALASLPL and LSYLFPP were the most reactive peptides and considered promising as possible mimetic immunogens for C. fetus subsp. venerealis.
https://doi.org/10.1590/0103-8478cr20200945
149 downloads
8.
Cyclodextrin and TiF4 Nanocomplex on Enamel Demineralization
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Vieira, Thiago
; Alexandria, Adílis K.
; Amaral, Lilian H.
; Neves, Aline de A.
; Lopes, Ricardo T.
; Cabral, Lúcio M.
; Valença, Ana M. G.
; Maia, Lucianne C.
.
Resumo O objetivo deste estudo foi avaliar o efeito da 1-etil-3- (3-dimetilaminopropil) carbodiimida (EDC) na resistência de união de pinos de fibra de vidro em canais radiculares obturados com diferentes cimentos endodônticos. Setenta e oito pré-molares inferiores foram obturados com três cimentos endodônticos (n=26): Endofill (END), AH Plus (AHP) e Endosequence BC Sealer (EBS). Após o preparo do espaço para pino, dois subgrupos formaram-se conforme a cimentação dos pinos (n=13): com EDC e sem EDC (controle - CON). Os espécimes foram submetidos ao teste pull-out, classificação do modo de falha e avaliação da superfície do canal radicular por microscopia eletrônica de varredura após o deslocamento. Quanto à força de resistência de união, uma diferença estatisticamente significativa ocorreu entre os subgrupos EDC e CON apenas no END (p=0,001). Não foi detectada diferença entre os subgrupos CON (p=0,339). Contudo, no subgrupo EDC, o AHP apresentou maiores valores (END versus AHP: p=0,001; AHP versus EBS: p=0,016). Acerca da classificação dos modos de falha, o escore 1 (≥50% de cimento) foi o mais comumente observado, exceto para END + EDC. Restos de cimentos endodônticos e cimentos resinosos foram encontrados no terço cervical, mas sem diferença estatística (p=0,269), enquanto no terço médio, houve diferença (p=0,004). Em conclusão, o EDC diminui a resistência de união quando associado ao cimento END, sem alterar o modo de falha entre o cimento resinoso e o pino de fibra de vidro. O melhor desempenho foi observado quanto o EDC foi usado com o cimento AHP.
Abstract The aim of this study was to assess the effect of a newly developed nanocomplex formed of hydroxypropyl-b-cyclodextrin and 1% titanium tetrafluoride (TiF4) after distinct complexation periods (12/72 h) on demineralization of bovine enamel in vitro. Enamel blocks (n=60) were allocated in different groups: Mili-Q water, hydroxypropyl-b-cyclodextrin, 1% TiF4, hydroxypropyl-b-cyclodextrin + 1% TiF4 after 12 h of complexation and hydroxypropyl-b-cyclodextrin + 1% TiF4 after 72 h of complexation. The samples were evaluated by surface microhardness, cross-sectional microhardness and micro-CT. Scanning electron microscopy and energy dispersive X-ray spectrometry (SEM/EDX) were also obtained. Hydroxypropyl-b-cyclodextrin + 1% TiF4 after 12 h complexation resulted in lower percentage of surface microhardness loss compared to Mili-Q water, hydroxypropyl-b-cyclodextrin, 1% TiF4 and hydroxypropyl-b-cyclodextrin + 1% TiF4 after 72 h of complexation group, with a large effect size (from 1.307 to 2.943) and high power (84.9 to 99%). All groups resulted in similar integrated mineral loss (ΔZ) obtained by both internal microhardness and micro-CT techniques. Enamel treated with TiF4 and TiF4 + hydroxypropyl-b-cyclodextrin groups showed a TiO2 glaze-layer, while EDX evaluation identified Ti. The solution containing the inclusion complex of hydroxypropyl-b-cyclodextrin + TiF4 with 12 h of complexation period demonstrated a significant ability to reduce surface demineralization of sound enamel under an artificial cariogenic challenge.
https://doi.org/10.1590/0103-6440202002531
617 downloads
9.
Childhood trauma and bipolar spectrum: a population-based sample of young adults
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Vieira, Igor S.
; Pedrotti Moreira, Fernanda
; Mondin, Thaise C.
; Cardoso, Taiane de A.
; Jansen, Karen
; Souza, Luciano D. de M.
; da Silva, Ricardo A.
.
Trends in Psychiatry and Psychotherapy
- Métricas do periódico
Abstract Introduction Childhood trauma has been suggested to be involved in susceptibility to bipolar disorder (BP). However, it remains unclear whether the occurrence of childhood trauma is differently distributed in subthreshold bipolar disorder (SBP). Objective To assess childhood trauma in young adults with SBP, as compared to young adults with BP and population controls (PC). Method This was a cross-sectional, population-based study. The Mini International Neuropsychiatric Interview (MINI) was used to define the groups with BP (subjects with a lifetime or current manic episode or lifetime or current hypomania with a history of a depressive episode), SBP (subjects with a history of hypomanic episode without lifetime or current depressive episode), and subjects without mood disorders (PC). Childhood trauma was assessed using de Childhood Trauma Questionnaire (CTQ). We investigated differences regarding childhood trauma across the three groups (BP, SBP and PC). Result Except for sexual abuse, all subtypes of childhood trauma remained associated with the BP group as compared to PC. Additionally, when we compared SBP and BP, significant differences were found only for emotional abuse. No significant differences were found in relation to childhood trauma between the SBP and PC groups after adjusting for confounding factors. Conclusion These findings suggest that investigating childhood trauma, with a particular focus on emotional abuse, could be considered a preventive measure and potentially improve the prognosis.
https://doi.org/10.1590/2237-6089-2019-0046
1391 downloads
10.
Characteristics and outcomes of patients with COVID-19 admitted to the ICU in a university hospital in São Paulo, Brazil - study protocol
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Ferreira, Juliana C.
; Ho, Yeh-Li
; Besen, Bruno A.M.P.
; Malbuisson, Luiz M.S.
; Taniguchi, Leandro U.
; Mendes, Pedro V.
; Costa, Eduardo L.V.
; Park, Marcelo
; Daltro-Oliveira, Renato
; Roepke, Roberta M.L.
; Silva Jr, João M.
; Carmona, Maria José C.
; Carvalho, Carlos Roberto Ribeiro
; Hirota, Adriana
; Kanasiro, Alberto Kendy
; Crescenzi, Alessandra
; Fernandes, Amanda Coelho
; Miethke-Morais, Anna
; Bellintani, Arthur Petrillo
; Canasiro, Artur Ribeiro
; Carneiro, Bárbara Vieira
; Zanbon, Beatriz Keiko
; Batista, Bernardo Pinheiro De Senna Nogueira
; Nicolao, Bianca Ruiz
; Besen, Bruno Adler Maccagnan Pinheiro
; Biselli, Bruno
; Macedo, Bruno Rocha De
; Toledo, Caio Machado Gomes De
; Pompilio, Carlos Eduardo
; Carvalho, Carlos Roberto Ribeiro De
; Mol, Caroline Gomes
; Stipanich, Cassio
; Bueno, Caue Gasparotto
; Garzillo, Cibele
; Tanaka, Clarice
; Forte, Daniel Neves
; Joelsons, Daniel
; Robira, Daniele
; Costa, Eduardo Leite Vieira
; Silva Júnior, Elson Mendes Da
; Regalio, Fabiane Aliotti
; Segura, Gabriela Cardoso
; Marcelino, Gustavo Brasil
; Louro, Giulia Sefrin
; Ho, Yeh-Li
; Ferreira, Isabela Argollo
; Gois, Jeison de Oliveira
; Silva Junior, Joao Manoel Da
; Reusing Junior, Jose Otto
; Ribeiro, Julia Fray
; Ferreira, Juliana Carvalho
; Galleti, Karine Vusberg
; Silva, Katia Regina
; Isensee, Larissa Padrao
; Oliveira, Larissa dos Santos
; Taniguchi, Leandro Utino
; Letaif, Leila Suemi
; Lima, Lígia Trombetta
; Park, Lucas Yongsoo
; Chaves Netto, Lucas
; Nobrega, Luciana Cassimiro
; Haddad, Luciana
; Hajjar, Ludhmila
; Malbouisson, Luiz Marcelo
; Pandolfi, Manuela Cristina Adsuara
; Park, Marcelo
; Carmona, Maria José Carvalho
; Andrade, Maria Castilho Prandini H De
; Santos, Mariana Moreira
; Bateloche, Matheus Pereira
; Suiama, Mayra Akimi
; Oliveira, Mayron Faria de
; Sousa, Mayson Laercio
; Louvaes, Michelle
; Huemer, Natassja
; Mendes, Pedro
; Lins, Paulo Ricardo Gessolo
; Santos, Pedro Gaspar Dos
; Moreira, Pedro Ferreira Paiva
; Guazzelli, Renata Mello
; Reis, Renato Batista Dos
; Oliveira, Renato Daltro De
; Roepke, Roberta Muriel Longo
; Pedro, Rodolpho Augusto De Moura
; Kondo, Rodrigo
; Rached, Samia Zahi
; Fonseca, Sergio Roberto Silveira Da
; Borges, Thais Sousa
; Ferreira, Thalissa
; Cobello Junior, Vilson
; Sales, Vivian Vieira Tenório
; Ferreira, Willaby Serafim Cassa
.
OBJECTIVES: We designed a cohort study to describe characteristics and outcomes of patients with coronavirus disease (COVID-19) admitted to the intensive care unit (ICU) in the largest public hospital in Sao Paulo, Brazil, as Latin America becomes the epicenter of the pandemic. METHODS: This is the protocol for a study being conducted at an academic hospital in Brazil with 300 adult ICU beds dedicated to COVID-19 patients. We will include adult patients admitted to the ICU with suspected or confirmed COVID-19 during the study period. The main outcome is ICU survival at 28 days. Data will be collected prospectively and retrospectively by trained investigators from the hospital’s electronic medical records, using an electronic data capture tool. We will collect data on demographics, comorbidities, severity of disease, and laboratorial test results at admission. Information on the need for advanced life support and ventilator parameters will be collected during ICU stay. Patients will be followed up for 28 days in the ICU and 60 days in the hospital. We will plot Kaplan-Meier curves to estimate ICU and hospital survival and perform survival analysis using the Cox proportional hazards model to identify the main risk factors for mortality. ClinicalTrials.gov: NCT04378582. RESULTS: We expect to include a large sample of patients with COVID-19 admitted to the ICU and to be able to provide data on admission characteristics, use of advanced life support, ICU survival at 28 days, and hospital survival at 60 days. CONCLUSIONS: This study will provide epidemiological data about critically ill patients with COVID-19 in Brazil, which could inform health policy and resource allocation in low- and middle-income countries.
https://doi.org/10.6061/clinics/2020/e2294
1957 downloads
11.
Degree of moisture in seeds for the cryopreservation of orchids native to Brazil
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Ferrari, Edilene Aparecida Preti
; Colombo, Ronan Carlos
; Faria, Ricardo Tadeu de
; Neves, Carmen Silvia Vieira Janeiro
; Vero, Franciele da Silva
.
RESUMO: O objetivo deste trabalho foi determinar o grau de umidade ideal para criopreservação das sementes das orquídeas Cattleya labiata Lindl. e Miltonia regnelli Rchb.f.. As sementes das orquídeas foram padronizadas em relação aos graus de umidade desejados (4, 6, 8, 10, 12 e 15%) e submetidas ao congelamento rápido em nitrogênio líquido (-196 ºC) durante 24 horas; em seguida, descongeladas e analisadas. O maior percentual de viabilidade, tanto para as sementes de C. labiata quanto para M. regnelli, ocorreu quando as sementes foram imersas em nitrogênio líquido com 4% de umidade, atingindo 95 e 68% de sementes viáveis, respectivamente, sendo que, as sementes com 12 e 15% de umidade não apresentaram sementes viáveis. Em relação à massa fresca de plântula, não houve diferença entre os tratamentos (grau de umidade)para as espécies avaliadas.
ABSTRACT: The objective of this study was to determine the ideal moisture degree for the cryopreservation of Cattleya labiata Lindl. and Miltonia regnellii Rchb.f. orchid seeds. Orchid seeds were standardized in relation to the desired moisture degrees (4, 6, 8, 10, 12, and 15%) and were subjected to rapid freezing in liquid nitrogen (-196 °C) for 24 h; then, the seeds were defrosted and analyzed. For both orchid species, the seeds that were immersed in liquid nitrogen with 4% moisture content had the highest viability percentage, averaging 95% and 68% of viable seeds for C. labiata and M. regnellii, respectively. The seeds with 12% and 15% moisture content had no viable seeds. For the fresh mass of seedlings, there was no significant difference between moisture content treatments for either species.
https://doi.org/10.1590/0103-8478cr20180498
537 downloads
12.
Updated Cardiovascular Prevention Guideline of the Brazilian Society of Cardiology - 2019
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Précoma, Dalton Bertolim
; Oliveira, Gláucia Maria Moraes de
; Simão, Antonio Felipe
; Dutra, Oscar Pereira
; Coelho, Otávio Rizzi
; Izar, Maria Cristina de Oliveira
; Póvoa, Rui Manuel dos Santos
; Giuliano, Isabela de Carlos Back
; Alencar Filho, Aristóteles Comte de
; Machado, Carlos Alberto
; Scherr, Carlos
; Fonseca, Francisco Antonio Helfenstein
; Santos Filho, Raul Dias dos
; Carvalho, Tales de
; Avezum Jr., Álvaro
; Esporcatte, Roberto
; Nascimento, Bruno Ramos
; Brasil, David de Pádua
; Soares, Gabriel Porto
; Villela, Paolo Blanco
; Ferreira, Roberto Muniz
; Martins, Wolney de Andrade
; Sposito, Andrei C.
; Halpern, Bruno
; Saraiva, José Francisco Kerr
; Carvalho, Luiz Sergio Fernandes
; Tambascia, Marcos Antônio
; Coelho-Filho, Otávio Rizzi
; Bertolami, Adriana
; Correa Filho, Harry
; Xavier, Hermes Toros
; Faria-Neto, José Rocha
; Bertolami, Marcelo Chiara
; Giraldez, Viviane Zorzanelli Rocha
; Brandão, Andrea Araújo
; Feitosa, Audes Diógenes de Magalhães
; Amodeo, Celso
; Souza, Dilma do Socorro Moraes de
; Barbosa, Eduardo Costa Duarte
; Malachias, Marcus Vinícius Bolívar
; Souza, Weimar Kunz Sebba Barroso de
; Costa, Fernando Augusto Alves da
; Rivera, Ivan Romero
; Pellanda, Lucia Campos
; Silva, Maria Alayde Mendonça da
; Achutti, Aloyzio Cechella
; Langowiski, André Ribeiro
; Lantieri, Carla Janice Baister
; Scholz, Jaqueline Ribeiro
; Ismael, Silvia Maria Cury
; Ayoub, José Carlos Aidar
; Scala, Luiz César Nazário
; Neves, Mario Fritsch
; Jardim, Paulo Cesar Brandão Veiga
; Fuchs, Sandra Cristina Pereira Costa
; Jardim, Thiago de Souza Veiga
; Moriguchi, Emilio Hideyuki
; Schneider, Jamil Cherem
; Assad, Marcelo Heitor Vieira
; Kaiser, Sergio Emanuel
; Lottenberg, Ana Maria
; Magnoni, Carlos Daniel
; Miname, Marcio Hiroshi
; Lara, Roberta Soares
; Herdy, Artur Haddad
; Araújo, Cláudio Gil Soares de
; Milani, Mauricio
; Silva, Miguel Morita Fernandes da
; Stein, Ricardo
; Lucchese, Fernando Antonio
; Nobre, Fernando
; Griz, Hermilo Borba
; Magalhães, Lucélia Batista Neves Cunha
; Borba, Mario Henrique Elesbão de
; Pontes, Mauro Ricardo Nunes
; Mourilhe-Rocha, Ricardo
.
Arquivos Brasileiros de Cardiologia
- Métricas do periódico
https://doi.org/10.5935/abc.20190204
40841 downloads
13.
Selección de proveedor de servicios logísticos: alineación entre criterios e indicadores
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Galo, Nadya Regina
; Ribeiro, Priscilla C. C.
; Mergulhão, Ricardo C.
; Vidal Vieira, José Geraldo
.
RESUMEN: Este artículo tiene por objetivo identificar los criterios de selección de proveedores de servicios logísticos, sus respectivos indicadores de desempeño y su alineación en los procesos de selección y evaluación de proveedores en el sector de comercio minorista. Se realizó un estudio de múltiples casos en un operador logístico y en cuatro consignatarios, por medio de entrevistas, informes de indicadores de desempeño y observaciones directas. Los resultados muestran que son pocos los criterios comunes; el "costo de flete" es usado por todas las empresas, y los criterios relacionados a la calidad de los servicios prestados no son muy gestionados. Además, existe poca alineación entre criterios e indicadores, lo que apunta a que las empresas no adoptan mecanismos de evaluación de los proveedores de servicios logísticos. Clasificación JEL: L25, L81, L87.
RÉSUMÉ: L'objectif de cet article est d'identifier les critères de sélection des prestataires de services logistiques, leurs indicateurs de performance respectifs et leur alignement dans les processus de sélection et d'évaluation des fournisseurs du secteur de la distribution. Une étude de cas multiples a été réalisée chez un opérateur logistique et dans quatre destinataires, à travers des entretiens, des rapports d'indicateurs de performance et des observations directes. Les résultats montrent qu'il y a peu de critères communs ; le « coût du fret » est utilisé par toutes les entreprises et les critères liés à la qualité des services fournis ne sont pas très gérés. En outre, il y a peu d'alignement entre les critères et les indicateurs, ce qui suggère que les entreprises n'adoptent pas de mécanismes d'évaluation pour les prestataires de services logistiques. Clasificación JEL: L25, L81, L87.
ABSTRACT: This article aims to identify the criteria for selecting logistics service providers, their performance indicators and their alignment in the selection and evaluation processes for suppliers in the retail sector. A study of multiple cases was carried out in a logistics operator and four consignees through interviews, reports of performance indicators and direct observations. General results show that few common criteria are considered; the "cost of freight" is used by all companies; and criteria related to the quality of the services provided are not often managed. Moreover, there is little alignment between criteria and indicators, which suggests that companies do not adopt evaluation mechanisms for logistics service providers. Clasificación JEL: L25, L81, L87.
RESUMO: Este artigo tem como objetivo identificar os critérios de seleção de fornecedores de serviços logísticos, seus respectivos indicadores de desempenho e seu alinhamento nos processos de seleção e avaliação de fornecedores no setor varejista. Realizou-se um estudo de múltiplos casos num operador logístico e em quatro consignatários por meio de entrevistas, relatórios de indicadores de desempenho e observações diretas. Os resultados mostram que são poucos os critérios comuns; o "custo do frete" é usado por todas as empresas, e os critérios relacionados com a qualidade dos serviços prestados não são muito gerenciados. Além disso, existe pouco alinhamento entre critérios e indicadores, o que indica que as empresas não adotam mecanismos de avaliação dos fornecedores de serviços logísticos. Clasificación JEL: L25, L81, L87
https://doi.org/10.15446/innovar.v28n69.71696
2180 downloads
14.
Diretriz Brasileira de Insuficiência Cardíaca Crônica e Aguda
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Rohde, Luis Eduardo Paim
; Montera, Marcelo Westerlund
; Bocchi, Edimar Alcides
; Clausell, Nadine Oliveira
; Albuquerque, Denilson Campos de
; Rassi, Salvador
; Colafranceschi, Alexandre Siciliano
; Freitas Junior, Aguinaldo Figueiredo de
; Ferraz, Almir Sergio
; Biolo, Andreia
; Barretto, Antonio C. Pereira
; Ribeiro, Antonio Luiz Pinho
; Polanczyk, Carisi Anne
; Gualandro, Danielle Menosi
; Almeida, Dirceu Rodrigues
; Silva, Eneida Rejane Rabelo da
; Figueiredo, Estêvão Lanna
; Mesquita, Evandro Tinoco
; Marcondes-Braga, Fabiana G.
; Cruz, Fátima das Dores da
; Ramires, Felix José Alvarez
; Atik, Fernando Antibas
; Bacal, Fernando
; Souza, Germano Emilio Conceição
; Almeida Junior, Gustavo Luiz Gouvêa de
; Ribeiro, Gustavo Calado de Aguiar
; Villacorta Junior, Humberto
; Vieira, Jefferson Luís
; Souza Neto, João David de
; Rossi Neto, João Manoel
; Figueiredo Neto, Jose Albuquerque de
; Moura, Lidia Ana Zytynsky
; Goldraich, Livia Adams
; Beck-da-Silva, Luis
; Danzmann, Luiz Claudio
; Canesin, Manoel Fernandes
; Bittencourt, Marcelo Imbroinise
; Garcia, Marcelo Iorio
; Bonatto, Marcely Gimenes
; Simões, Marcus Vinícius
; Moreira, Maria da Consolação Vieira
; Silva, Miguel Morita Fernandes da
; Olivera Junior, Mucio Tavares de
; Silvestre, Odilson Marcos
; Schwartzmann, Pedro Vellosa
; Bestetti, Reinaldo Bulgarelli
; Rocha, Ricardo Mourilhe
; Simões, Ricardo
; Pereira, Sabrina Bernardez
; Mangini, Sandrigo
; Alves, Sílvia Marinho Martins
; Ferreira, Silvia Moreira Ayub
; Issa, Victor Sarli
; Barzilai, Vitor Salvatore
; Martins, Wolney de Andrade
.
Arquivos Brasileiros de Cardiologia
- Métricas do periódico
https://doi.org/10.5935/abc.20180190
60819 downloads
15.
Evaluation of embryotoxic and embryostatic effects of the aqueous extract of Rhizophora mangle and tannic acid on eggs and larvae of Aedes aegypti
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RODRIGUES NETO, AGEU A.
; GOMES JÚNIOR, PLÍNIO P.
; SILVA, MAURICIO C.
; LIMA, CLÁUDIA S.A.
; YARA, RICARDO
; GUIMARÃES, EMÍLIA B.
; SANTANA, EDUARDA S. DE
; SILVA, LUZIA A. DA
; LIRA, EDUARDO J.R.V. DE
; VIEIRA, JEYMESSON R.C.
.
Anais da Academia Brasileira de Ciências
- Métricas do periódico
ABSTRACT Rhizophora mangle is an abundant plant in mangroves and tannic acid is a polyphenol produced by the secondary metabolism of plants. The aim of the study was to evaluate the embryotoxic and embriostatic effects of the aqueous extract of R. mangle and synthetic tannic acid on eggs and larvae of Aedes aegypti. A. aegypti eggs were exposed in duplicate at concentrations of 250, 500, 750 and 1000 µg/mL of extract and tannic acid for a period of 14 days. Mineral water was used as a negative control. The eggs were observed and counted in a stereomicroscope (1.2x). In all extract concentrations there was stimulation in hatching in relation to the control, but only in concentration of 750 mg/mL it was statistically significant. In tannic acid (250µg/ml) there was significant stimulus in hatching, but in 500, 750 and 1000 µg/mL there was significant inhibition. All concentrations of aqueous extract and tannic acid on larvae showed embryotoxic and embryostatic effects when compared to the control. The aqueous extract of R. mangle showed effect on hatching of A. aegypti eggs and synthetic tannic acid showed embryotoxic and embryostatic effects. On larvae, both the aqueous extract as tannic acid showed embryotoxic and embryostatic effects.
https://doi.org/10.1590/0001-3765201720170297
942 downloads
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aff_country | código do país de afiliação do autor |
aff_institution | instituição de afiliação do autor |
volume | volume do artigo |
issue | número do artigo |
elocation | elocation |
doi | número DOI |
issn | ISSN da revista |
in | código da coleção SciELO (ex. scl - Brasil, col - Colômbia) |
use_license | código da licença de uso do artigo |