Pesquisa | SciELO

Resumo A atividade antioxidante do mel de Tetragonisca angustula (TAH) e seu extrato etanólico (TAEE) foram investigados. Os níveis totais de fenólicos (TPC) e flavonóides (TFC) também foram avaliados. Os resultados para TPC foram 19,91 ± 0,38 e 29,37 ± 1,82 mg GAE g-1 e para TFC 0,20 ± 0,02 e 0,14 ± 0,01 mg QE g-1 de TAH e TAEE, respectivamente. As atividades antioxidantes foram 73,29 ± 0,49% e 93,36 ± 0,27% no ensaio DPPH● e 71,73 ± 4,07% e 97,86 ± 0,35% no ABTS●+ para TAH e TAEE, respectivamente. A atividade redutora total foi determinada pelo método de poder redutor (PR) e íon ferrico (Fe III) e os resultados variaram em PR de 151,7 ± 25,7 e 230,7 ± 25,2 mg GAE L-1, para TAH e TAEE respectivamente e para (Fe III) em EC50 0,284 em TAEE e 0,687 em TAH. A análise química por HPLC-DAD do extrato etanólico (TAEE) revelou a presença de ácido ferúlico como componente majoritário no extrato. A análise de RMN 1H confirmou esta estrutura e mostrou a presença de glicose, ácido cítrico, ácido succínico, prolina e derivados de hidrocarbonetos no TAEE. Além disso, a origem botânica também foi investigada e apresentou característica multifloral, tendo encontrado 19 tipos polínicos com predomínio botânico da família Anacardiaceae, sendo o pólen Tapirira predominante (42,6%) e o Schinus secundário (25,7%). Os resultados mostraram que o mel de T. angustula é uma interessante fonte de compostos fenólicos antioxidantes devido à sua origem floral e pode atuar como protetor da saúde humana quando consumido.

Abstract The antioxidant activity of Tetragonisca angustula honey (TAH) and its ethanolic extract (TAEE) were investigated. The total levels of phenolic (TPC) and flavonoids (TFC) were also evaluated. The results for TPC were 19.91 ± 0.38 and 29.37 ± 1.82 mg GAE g-1 and for TFC 0.20 ± 0.02 and 0.14 ± 0.01 mg QE g-1 of TAH and TAEE, respectively. Antioxidant activities were 73.29 ± 0.49% and 93.36 ± 0.27% in the DPPH● assay and 71.73 ± 4.07% and 97.86 ± 0.35% in ABTS●+ for TAH and TAEE, respectively. The total reducing activity was determined by the method of reducing power (PR) and iron ion (Fe III) and the results varied in PR from 151.7 ± 25.7 and 230.7 ± 25.2 mg GAE L-1, for TAH and TAEE respectively and for (Fe III) in EC50 0.284 in TAEE and 0.687 in TAH. Chemical analysis by HPLC-DAD of the ethanolic extract (TAEE) revealed the presence of ferulic acid as majority phenolic component in the extract. The 1H NMR analysis confirmed this structure and showed the also presence of glucose, citric acid, succinic acid, proline and hydrocarbon derivatives. In addition, the botanical origin was also investigated and showed a multifloral characteristic, having found 19 pollen types with a botanical predominance of the Anacardiaceae family, with Tapirira pollen occurring as predominant (42.6%) and Schinus as secondary (25.7%). The results showed that T. angustula honey is an interesting source of antioxidant phenolic compounds due to its floral origin and can act as a protector of human health when consumed.

https://doi.org/10.1590/1519-6984.253599

Early Six-Minute Walk Test May Predict Midterm Outcomes Following Coronary Artery Bypass Grafting
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Pauletti, Hayanne O.

; Gomes, Walter José

; Rocco, Isadora S.

; Viceconte, Marcela

; Garcia, Bruna Caroline Matos

; Marcondi, Natasha O.

; Bublitz, Caroline B.

; Costa, Ariele dos Santos

; Paiva, Thâmara Pequeno de

; Spina, Giovanna Domingues

; Begot, Isis

; Silva, Célia Camelo

; Moreira, Rita Simone L.

; Branco, João Nelson Rodrigues

; Vargas, Guilherme Flora

; Hossne Jr., Nelson A.

; Arena, Ross

; Guizilini, Solange

Brazilian Journal of Cardiovascular Surgery

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

2023, Volume 38 Nº 4 elocation e20220459

Resumo: En | Texto: En | PDF: En

ABSTRACT Objective: This study aims to investigate the ability of the six-minute walk distance (6MWD) as a prognostic marker for midterm clinical outcomes three months after coronary artery bypass grafting (CABG), to identify possible predictors of fall in 6MWD in the early postoperative period, and to establish the percentage fall in early postoperative 6MWD, considering the preoperative baseline as 100%. Methods: A prospective cohort of patients undergoing elective CABG were included. The percentage fall in 6MWD was assessed by the difference between preoperative and postoperative day (POD) five. Clinical outcomes were evaluated three months after hospital discharge. Results: There was a significant decrease in 6MWD on POD5 compared with preoperative baseline values (percentage fall of 32.5±16.5%, P<0.0001). Linear regression analysis showed an independent association of the percentage fall of 6MWD with cardiopulmonary bypass (CPB) and preoperative inspiratory muscle strength. Receiver operating characteristic curve analysis revealed that the best cutoff value of percentage fall in 6MWD to predict poorer clinical outcomes at three months was 34.6% (area under the curve = 0.82, sensitivity = 78.95%, specificity = 76.19%, P=0.0001). Conclusion: This study indicates that a cutoff value of 34.6% in percentage fall of 6MWD on POD5 was able to predict poorer clinical outcomes at three months of follow-up after CABG. Use of CPB and preoperative inspiratory muscle strength were independent predictors of percentage fall of 6MWD in the postoperative period. These findings further support the clinical application of 6MWD and propose an inpatient preventive strategy to guide clinical management over time.

https://doi.org/10.21470/1678-9741-2022-0459

Evaluation of antioxidant, photoprotective and antinociceptive activities of Marcetia macrophylla extract: potential for formulation of sunscreens
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Costa, S. C. C.

; Damasceno, P. K. F.

; Lima, R. G. G.

; Botura, M. B.

; Branco, C. R. C.

; Silva, T. R. S.

; Oliveira, A. P.

; Guimarães, A. L.

; Almeida, J. R.G.S.

; Branco, A.

Brazilian Journal of Biology

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

2023, Volume 83 elocation e246312

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O extrato bruto de Marcetia macrophylla mostrou atividade antioxidante, fotoprotetora e antinociceptiva, sendo em seguida investigado como ingrediente ativo em uma formulação fotoprotetora. Assim, o extrato de M. macrophylla apresentou atividade antioxidante com IC50 de 3,43 mg/mL (teste de sequestro do DPPH∙) e Fator de Proteção Solar de 20,25 (FPS/UV-B, 250 µg/mL) e UV-A de 78,09% (teste de fotobranqueamento do trans-resveratrol). A atividade antinociceptiva usando o teste in vivo de contorções abdominais induzidas por ácido acético foi superior a todos os padrões testados (99,14% na dose de 200 mg/Kg). A análise por cromatografia líquida de alta eficiência acoplada a detector de fotodiodos e espectroscopia de massas multi-estágio (CLAE-DAD-EM/EM) possibilitou a caracterização dos flavonoides quercetina-3-O-hexosídeo, quercetina-3-O-pentosídeo e quercetina-3-O-desoxihexosídeo. A formulação farmacêutica contendo o extrato ativo bruto de Marcetia macrophylla foi preparada e os testes físico-químicos (características organolépticas, análise de pH e centrifugação), o UVB in vitro (fator de proteção solar, FPS) e UVA (β-caroteno) foram investigados. A formulação apresentou resultados satisfatórios frente aos parâmetros físico-químicos avaliados e ativos contra UV. Assim, M. macrophylla apresentou atividades biológicas com potencial uso em preparações fitofarmacêuticas.

Abstract The antioxidant, photoprotective and antinociceptive Marcetia macrophylla active extract was investigated as an active ingredient in a sunscreen cream formulation. Thus, the M. macrophylla extract showed IC50 of 3.43 mg/ml of the antioxidant (DPPH∙ scavenging test) and Sun Protection Factor of 20.25 (SPF/UV-B, at 250 µg/ml) and UV-A of 78.09% (photobleaching trans-resveratrol test). The antinociceptive activity was superior to all standards tested using the in vivo acetic acid-induced writhing test (99.14% at the dose of 200 mg/kg) and the high-performance liquid chromatography coupled with diode array detector and mass spectroscopy multi-stage (HPLC-DAD-MS/MS) enabled the structural characterization of the quercetin-3-O-hexoside, quercetin-3-O-pentoside and quercetin-3-O-desoxihexoside. The pharmaceutical formulation containing the Marcetia macrophylla crude active extract was prepared and the physicochemical tests (organoleptic characteristics, pH analysis and centrifugation), the in vitro UVB (sun protection factor, SPF) and UVA (β-carotene) using the spectroscopic method were investigated. The formulation showed satisfactory results concerning the physicochemical parameters evaluated and active against the UV test. Thus, M. macrophylla showed biological activities with potential use in pharmaceutical preparations.

https://doi.org/10.1590/1519-6984.246312 183 downloads

Early Six-Minute Walk Test May Predict Midterm Outcomes Following Coronary Artery Bypass Grafting
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Pauletti, Hayanne O.

; Gomes, Walter José

; Rocco, Isadora S.

; Viceconte, Marcela

; Garcia, Bruna Caroline Matos

; Marcondi, Natasha O.

; Bublitz, Caroline B.

; Costa, Ariele dos Santos

; Paiva, Thâmara Pequeno de

; Spina, Giovanna Domingues

; Begot, Isis

; Silva, Célia Camelo

; Moreira, Rita Simone L.

; Branco, João Nelson Rodrigues

; Vargas, Guilherme Flora

; Hossne Jr., Nelson A.

; Arena, Ross

; Guizilini, Solange

Brazilian Journal of Cardiovascular Surgery

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

2023, Volume 38 Nº 4 elocation e20220459

Resumo: En | Texto: En | PDF: En

https://doi.org/10.21470/1678-9741-2022-0459

Capra hircus outliers markers in Brazil: Searching for genomic regions under the action of natural selection
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Diniz Sobrinho, Francisco de A.

; Moura, Jeane de O.

; Bajay, Miklos M.

; Branco, Leonardo Castelo

; Bezerra, Roosevelt D.S.

; Araújo, Adriana M. de

Genetics and Molecular Biology

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

2023, Volume 46 Nº 3 elocation e20230084

Resumo: En | Texto: En | PDF: En

Abstract Identifying genome regions subject to selection in local breeds of Brazil is an opportunity to elucidate the C. hircus genome plasticity, flowing the colonization history of the country. Using SNP Bead Chip Illumina 50K genotyping of Brazilian Anglo-Nubian (standardized breed) and Marota (local endangered population from the semiarid area of Brazil) to show outliers loci in genome regions subject to selection. After applying data quality control, 45,600 SNPs were included in this investigation. Principal component analysis (PCAdapt) and FDIST2 analysis signalized 14 genomic regions more affected by selection in the Brazilian dry zone environment. The genome study signalized regions that are close to the sequences of genes related to growth and embryonic skeletal development (FGF12, AMPD2, OSTN). In addition, flagged regions close to the genes UTSB2 and SLC5A2 contribute to research on functional adaptation with low water needs and poor nutritive diet to survive. Both genes encode proteins that act on osmotic pathways and avoid cell flooding on stress cell responses. Further studies on the genetic role and involvement of these outliers’ genomic regions, building a robust conceptual high-resolution map of natural selection drives, help to achieve hardiness candidate genes linked to the evolutionary history of Capra hircus in the semiarid area of Brazil.

https://doi.org/10.1590/1678-4685-gmb-2023-0084

Synthesis and Biological Evaluation of Novel 1,3-Benzoxathiol-2-one Sulfonamides against Toxic Activities of the Venom of Bothrops jararaca and Bothrops jararacussu Snakes
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Chazin, Eliza L.

; Martins, Leonardo B.

; Souza, Marcus Vinícius N. de

; Gomes, Claudia Regina B.

; Silva, Ana Cláudia R. da

; Branco, Marcelly C.

; Sanchez, Eladio F.

; Fuly, André L.

; Vasconcelos, Thatyana R. A.

Journal of the Brazilian Chemical Society

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

Jan 2022, Volume 33 Nº 1 Páginas 2 - 12

Resumo: En | Texto: En | PDF: En

This work describes the synthesis of new 1,3-benzoxathiol-2-one sulfonamides and evaluation of their ability to inhibit some in vitro (coagulant, proteolytic and hemolytic) and in vivo (hemorrhagic, edematogenic and lethality) toxic activities of Bothrops jararaca and Bothrops jararacussu venoms. Compounds have been synthesized from the coupling of intermediate 5-amino-6 methoxybenzo[d][1,3]oxathiol-2-one 4 with benzenesulfonyl chlorides. Characterization of the products was achieved by nuclear magnetic resonance (NMR) and electrospray ionization mass spectra (ESI-MS) techniques. Biological assay results have shown that most of compounds inhibited the main toxic activities of the venom of the two snake species. Compound 5b (N-(6 methoxy-2 oxobenzo[d][1,3]oxathiol-5-yl)-4-nitrobenzenesulfonamide) was the most efficient in inhibiting hemolysis of B. jararaca, and coagulation and proteolysis induced by both venoms. For in vivo activities, all compounds inhibited the edema, from 35 to 72%, and most of them exhibited antihemorrhagic and antilethality activities. Thus, the results pointed to the biological potential of these compounds, being promising molecules to treat envenomation by these snakes as well as to aid the current antivenom serum therapy.

https://doi.org/10.21577/0103-5053.20210119

Factors associated with hospitalizations for Covid-19 in patients with rheumatoid arthritis: data from the Reumacov Brazil registry
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Gomides, Ana Paula Monteiro

; Albuquerque, Cleandro Pires de

; Mota, Licia Maria Henrique da

; Devidé, Guilherme

; Dias, Laiza Hombre

; Duarte, Angela Luzia Branco Pinto

; Giovelli, Raquel Altoé

; Karnopp, Thais Evelyn

; Lima, Hugo Deleon de

; Marinho, Adriana

; Oliveira, Marianne Schrader de

; Omura, Felipe

; Ranzolin, Aline

; Resende, Gustavo

; Ribeiro, Francinne Machado

; Ribeiro, Sandra Lúcia Euzébio

; Sacilotto, Nathália de Carvalho

; Santos, Wander Gonzaga dos

; Shinjo, Samuel Katsuyuki

; Studart, Samia Araujo de Sousa

; Teixeira, Flávia Patricia Sena

; Yazbek, Michel Alexandre

; Ferreira, Gilda Aparecida

; Monticielo, Odirlei A.

; Paiva, Eduardo

; Pileggi, Gecilmara Cristina Salviato

; Reis Neto, Edgard Torres dos

; Pinheiro, Marcelo de Medeiros

; Marques, Claudia D. L.

Advances in Rheumatology

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

2022, Volume 62 elocation 13

Resumo: En | Texto: En | PDF: En

Abstract Background: Patients using immunosuppressive drugs may have unfavorable results after infections. However, there is a lack of information regarding COVID 19 in these patients, especially in patients with rheumatoid arthritis (RA). Therefore, the aim of this study was to evaluate the risk factors associated with COVID 19 hospitalizations in patients with RA. Methods: This multicenter, prospective cohort study is within the ReumaCoV Brazil registry and included 489 patients with RA. In this context, 269 patients who tested positive for COVID 19 were compared to 220 patients who tested negative for COVID 19 (control group). All patient data were collected from the Research Electronic Data Capture database. Results: The participants were predominantly female (90.6%) with a mean age of 53 ±12 years. Of the patients with COVID 19, 54 (20.1%) required hospitalization. After multiple adjustments, the final regression model showed that heart disease (OR =4.61, 95% CI 1.06–20.02. P < 0.001) and current use of glucocorticoids (OR =20.66, 95% CI 3.09–138. P < 0.002) were the risk factors associated with hospitalization. In addition, anosmia was associated with a lower chance of hospitalization (OR =0.26; 95% CI 0.10–0.67, P < 0.005). Conclusion: Our results demonstrated that heart disease and the use of glucocorticoids were associated with a higher number of hospital admissions for COVID 19 in patients with RA. Trial registration: Brazilian Registry of Clinical Trials RBR 33YTQC.

https://doi.org/10.1186/s42358-022-00244-5

More on the distribution of cladoceran species: gaps and perspectives in Rio de Janeiro State, southeastern Brazil
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Macêdo, Rafael Lacerda

; Sousa, Francisco Diogo R.

; Veras, Vinícius

; Elmoor-Loureiro, Lourdes M. A.

; Branco, Christina Wyss Castelo

Nauplius

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

2022, Volume 30 elocation e2022032

Resumo: En | Texto: En | PDF: En

Abstract Our knowledge of cladoceran species composition and distribution of Neotropical taxa is incomplete, therefore misleading the basic understanding of biodiversity processes and biogeographical patterns of this ecologically relevant group. We present new records and an updated checklist of the cladocerans of Rio de Janeiro State (Brazil) based on a critical review of their known distribution throughout the different freshwater ecoregions. Nine marine species were recorded, and 80 non-marine cladocerans were counted from two of the four ecoregions of Rio de Janeiro State. We estimate species richness applying the interpolation and extrapolation method, using iNEXT function. With this approach we compute diversity estimates for rarefied and extrapolated samples up to double the reference sample size (number of studies). Four new records of rare species were included from surveys in the Paraiba do Sul ecoregion. The Fluminense ecoregion shows a higher richness with a more asymptotic curve and thus a lower expected richness in comparison to the Paraiba do Sul ecoregion. Ceriodaphnia cornuta Sars, 1886 was the most frequently found species whilst Moina macrocopa Straus, 1820 was the only non-native species encountered. Our study can contribute to developing a biogeographical understanding of this diverse group in a heterogeneous territory in terms of inland waters. Future studies are suggested to prioritize novel ecoregions and unexplored habitats e.g. littoral zones with high macrophyte and periphyton coverage, brackish waters, saline and high-altitude lakes, as more diverse and heterogeneous habitats will undoubtedly reveal additional records.

https://doi.org/10.1590/2358-2936e2022032

Antinociceptive and anti-inflammatory activities of Hymenaea martiana Hayne (Fabaceae) in mice
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Pacheco, A. G. M.

; Pacheco, E. J.

; Macedo, L. A. R. O.

; Silva, J. C.

; Lima-Saraiva, S. R. G.

; Barros, V. P.

; Oliveira-Junior, R. G.

; Branco, A.

; Quintans, J. S. S.

; Quintans-Junior, L. J.

; Coutinho, H. D. M.

; Menezes, I. R. A.

; Almeida, J. R. G. S.

Brazilian Journal of Biology

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

2022, Volume 82 elocation e240359

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Hymenaea martiana é uma espécie popularmente conhecida no Nordeste do Brasil como “jatobá” e usada na medicina popular para tratar a dor e a inflamação. O objetivo deste trabalho foi avaliar a atividade antinociceptiva e anti-inflamatória de H. martiana. No presente estudo, foram avaliados os efeitos do extrato etanólico bruto (Hm-EtOH) e da fração acetato de etila (Hm-AcOEt) em modelos de nocicepção e inflamação em camundongos. Foram utilizados estímulos químicos (contorções abdominais induzidas por ácido acético e teste da formalina) e estímulo térmico (teste da placa quente) para avaliação da atividade antinociceptiva, enquanto no perfil anti-inflamatório foi utilizado o teste do edema de pata induzido por carragenina e migração de leucócitos para a cavidade peritoneal. A presença do flavonoide astilbina nas amostras foi caracterizada através de análise por CLAE-DAD-EM. Hm-EtOH e o Hm-AcOEt (100, 200 e 400 mg.kg-1, i.p.) reduziram significativamente o número de contorções abdominais e diminuíram o tempo de lambida da pata no teste da formalina. No teste da placa quente, houve aumento do tempo de latência dos animais. Hm-EtOH e Hm-AcOEt inibiram significativamente o aumento do edema após a administração de carragenina, bem como inibiram a migração de leucócitos no teste de peritonite. A análise por CLAE-DAD-EM de Hm-EtOH e Hm-AcOEt revelou a presença do flavonoide astilbina nas amostras. De acordo com os resultados deste estudo, tanto Hm-EtOH quanto o Hm-AcOEt possuem atividades antinociceptiva e anti-inflamatória, o que pode estar relacionado à presença do flavonoide. Os resultados reforçam o uso popular desta planta.

Abstract Hymenaea martiana is a species popularly known in Northeastern Brazil as “jatobá” and used in folk medicine to treat pain and inflammation. The aim of this work was to evaluate the antinociceptive and anti-inflammatory activity of H. martiana. In the present study, we carried out an investigation about the effects of the crude ethanolic extract (Hm-EtOH) and the ethyl acetate fraction (Hm-AcOEt) in models of nociception and inflammation in mice. Chemical (acetic acid-induced writhing and formalin) and thermal stimuli (hot plate) were used for the evaluation of antinociceptive activity, while for the anti-inflammatory profile paw edema induced by carrageenan was used, along with leukocyte migration to the peritoneal cavity. The presence of the flavonoid astilbin in the samples was characterized through HPLC-DAD-MS analysis. Hm-EtOH and Hm-AcOEt (100, 200 and 400 mg.kg-1, i.p.) significantly reduced the number of abdominal contortions and decreased the paw licking time in the formalin test. In the hot plate, the extract increased the latency time of animals. Hm-EtOH and Hm-AcOEt inhibited significantly the increase in the edema after the administration of carrageenan. Hm-EtOH and Hm-AcOEt inhibited leukocyte migration in the peritonitis test. HPLC-DAD-MS analysis of Hm-EtOH and Hm-AcOEt revealed the presence of the flavonoid astilbin in the samples. According to the results of this study, both Hm-EtOH and Hm-AcOEt have antinociceptive and anti-inflammatory activities, which could be related with the presence of flavonoid in the extracts. The results reinforce the popular use of this plant.

https://doi.org/10.1590/1519-6984.240359 1662 downloads

10.

COVID-19 in the Perioperative Period of Cardiovascular Surgery: the Brazilian Experience
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Gomes, Walter J.

; Rocco, Isadora

; Pimentel, Wallace S.

; Pinheiro, Aislan H. B.

; Souza, Paulo M. S.

; Costa, Luiz A. A.

; Teixeira, Marjory M. P.

; Ohashi, Leonardo P.

; Bublitz, Caroline

; Begot, Isis

; Moreira, Rita Simone L

; Hossne Jr, Nelson A.

; Vargas, Guilherme F.

; Branco, João Nelson R.

; Teles, Carlos A.

; Medeiros, Eduardo A. S.

; Sáfadi, Camila

; Rampinelli, Amândio

; Moratelli Neto, Leopoldo

; Rosado, Anderson Rosa

; Mesacasa, Franciele Kuhn

; Capriata, Ismael Escobar

; Segalote, Rodrigo Coelho

; Palmieri, Deborah Louize da Rocha Vianna

; Jardim, Amanda Cristina Mendes

; Vianna, Diego Sarty

; Coutinho, Joaquim Henrique de Souza Aguiar

; Jazbik, João Carlos

; Coutinho, Henrique Madureira da Rocha

; Kikuta, Gustavo

; Almeida, Zely Sant'Anna Marotti de

; Feguri, Gibran Roder

; Lima, Paulo Ruiz Lucio de

; Franco, Anna Carolina

; Borges, Danilo de Cerqueira

; Cruz, Felipe Ramos Honorato De La

; Croti, Ulisses Alexandre

; Borim, Bruna Cury

; Marchi, Carlos Henrique De

; Goraieb, Lilian

; Postigo, Karolyne Barroca Sanches

; Jucá, Fabiano Gonçalves

; Oliveira, Fátima Rosane de Almeida

; Souza, Rafael Bezerra de

; Zilli, Alexandre Cabral

; Mas, Raul Gaston Sanchez

; Bettiati Junior, Luiz Carlos

; Tranchesi, Ricardo

; Bertini Jr, Ayrton

; Franco, Leandro Vieira

; Fernandes, Priscila

; Oliveira, Fabiana

; Moraes Jr, Roberto

; Araújo, Thiago Cavalcanti Vila Nova de

; Braga, Otávio Penna

; Pedrosa Sobrinho, Antônio Cavalcanti

; Teixeira, Roberta Tavares Barreto

; Camboim, Irla Lavor Lucena

; Gomes, Eduardo Nascimento

; Reis, Pedro Horigushi

; Garcia, Luara Piovan

; Scorsioni, Nelson Henrique Goes

; Lago, Roberto

; Guizilini, Solange

Brazilian Journal of Cardiovascular Surgery

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

Dez 2021, Volume 36 Nº 6 Páginas 725 - 735

Resumo: En | Texto: En | PDF: En

Abstract Introduction: We investigated the clinical course and outcomes of patients submitted to cardiovascular surgery in Brazil and who had developed symptoms/signs of coronavirus disease 2019 (COVID-19) in the perioperative period. Methods: A retrospective multicenter study including 104 patients who were allocated in three groups according to time of positive real time reverse transcriptase-polymerase chain reaction (RT-PCR) for the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2): group 1, patients who underwent cardiac surgery > 10 days after positive RT-PCR; group 2, patients with a positive RT-PCR within 10 days before or after surgery; group 3, patients who presented positive RT-PCR > 10 days after surgery. The primary outcome was mortality and secondary outcomes were postoperative complications, intensive care unit (ICU) length of stay, and postoperative days of hospitalization. Results: The three groups were similar with respect to age, the European System of Cardiac Operative Risk Evaluation score, and comorbidities, except hypertension. Postoperative complications and death were significantly higher in groups 2 and 3 than in group 1, and no significant difference between groups 2 and 3 was seen. Group 2 showed a high prevalence of surgery performed as an urgent procedure. Although no significant differences were observed in ICU length of stay, total postoperative hospitalization time was significantly higher in group 3 than in groups 1 and 2. Conclusion: COVID-19 affecting the postoperative period of patients who underwent cardiovascular surgery is associated with a higher rate of morbidity and mortality. Delaying procedures in RT-PCR-positive patients may help reduce risks of perioperative complications and death.

https://doi.org/10.21470/1678-9741-2021-0960

11.

Revista Alconpat: 10 years of history (2011 - 2021)
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Castro-Borges, P.

; Sabido-Maldonado, E.

; Mendoza-Rangel, J. M.

; Helene, P.

; Garcés-Terradillos, P.

; Torres-Acosta, A. A.

; Fernández-Cánovas, M.

; Husni, R.

; Troconis-Rincón, O.

; Branco, F.

; Escalante-García, J. I.

; Alonso-Farrera, F.

; Olavarrieta-Parisot, M. A.

Revista ALCONPAT

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

Ago 2021, Volume 11 Nº 2 Páginas 146 - 157

Resumo: En Es Pt | Texto: En Es Pt | PDF: En | PDF: Es | PDF: Pt

Abstract The objective of this paper is to present to the community the achievements attained and the challenges, met, current and coming, during the first ten years of existence of the Alconpat Journal. A narration is made of: how the idea of having a scientific/technical journal in Alconpat International arose; when, how and where the discussions and the project took place; the implementation, the first issue, the punctuality; the requirements and challenges to meet for the first indexations (Scielo México, Scielo WoS, Redalyc, Latindex, Google); the Conacyt projects that made it possible to gradually meet the requirements for eventual applications at higher indexes (Scopus and WoS), repositories, directories (DOAJ) and super servers; electronic markings, publication in three languages (Spanish, Portuguese and English), administrative times for timely publication, etc. The efforts of all those who have collaborated in these initial 10 years are also acknowledged.

Resumen El objetivo de este trabajo es presentar a la comunidad los logros y retos por venir de la Revista Alconpat en sus primeros diez años de existencia. Se realiza una narración de: cómo surgió la idea de tener una revista científico/técnica en Alconpat Internacional; cuando, como y donde se llevaron a cabo las discusiones y el proyecto; la implementación, el primer número, la puntualidad; los requisitos y retos a cumplir para las primeras indizaciones (Scielo México, Scielo WoS, Redalyc, Latindex, Google); los proyectos CONACyT que permitieron cumplir poco a poco los requisitos para eventuales aplicaciones a índices superiores (Scopus y WoS), repositorios, directorios (DOAJ) y super servidores; marcaciones electrónicas, publicación en tres idiomas (español, portugués e inglés), los tiempos administrativos para publicación puntual, etc. Al final se hace un extenso agradecimiento a todos los que han intervenido en estos 10 años iniciales.

Resumo O objetivo deste trabalho é apresentar à comunidade as conquistas e desafios da Revista Alconpat em seus primeiros dez anos de existência. Narra-se: como surgiu a ideia de uma revista científica / técnica na Alconpat Internacional; quando, como e onde as discussões e o projeto ocorreram; como foi a implementação, a primeira questão, a pontualidade; os requisitos e desafios a cumprir para as primeiras indexações (Scielo México, Scielo WoS, Redalyc, Latindex, Google); os projetos do CONACyT que possibilitaram atender gradativamente os requisitos para eventuais aplicações em índices superiores (Scopus e WoS), repositórios, diretórios (DOAJ) e super servidores; marcações eletrônicas, publicação em três idiomas (espanhol, português e inglês), tempos administrativos para publicação específica, etc. Ao final, um extenso agradecimento a todos aqueles que participaram desses primeiros 10 anos.

https://doi.org/10.21041/ra.v11i2.534 15 downloads

12.

Behavioral aspects of waterbirds
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Rubert, B.

; Branco, J. O.

; Barrilli, G. H. C.

; Melo, D. C.

; Ferreira, A. P.

Brazilian Journal of Biology

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

Fev 2021, Volume 81 Nº 1 Páginas 164 - 177

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Estuários são utilizados por aves aquáticas como locais de forrageio, descanso e nidificação, servindo, também, como pontos de parada para aves migratórias. A dinâmica dessa avifauna em um ambiente pode estar associada a diferenças entre horários do dia, altura da maré, temperatura, velocidade do vento e uso do local. Esse trabalho teve o objetivo de avaliar aspectos comportamentais de aves aquáticas, relacionando a influência de variáveis ambientais com suas atividades. Amostragens mensais foram realizadas na foz de dois importantes rios do Estado de Santa Catarina, Brasil, entre junho de 2015 e maio de 2016, em intervalos de duas horas no decorrer do dia. Um total de 44 espécies foram registradas, dez das quais foram migratórias. Os comportamentos mais observados foram forrageio e descanso. A análise de Kruskall-Wallis não indicou diferenças significativas no comportamento entre os horários de amostragem. O teste de similaridade Bray-Curtis resultou em três agrupamentos: 1) - espécies que forragearam na maior parte do tempo; 2) - espécies que descansaram na maior parte do tempo; e 3) - mesma quantidade de tempo em ambas atividades. A Análise de Espécies Indicadoras mostrou que 17 espécies estiveram associadas com apenas um microhabitat e 15 espécies com mais de um. A Análise de Correlação Canônica indicou que apenas as variáveis maré, temperatura e precipitação foram significativamente correlacionadas com os comportamentos demonstrados e apenas a atividade de descanso foi positivamente correlacionada com as todas as variáveis. Isso pode estar associado com a termorregulação e com a habilidade de algumas espécies de permanecer no mediolitoral durante a maré cheia. Os resultados demonstram que diferentes espécies de aves aquáticas utilizaram as áreas estudadas de diferentes maneiras. Assim, a heterogeneidade de microhabitats em um ambiente aquático é de extrema importância para a coexistência e a manutenção da diversidade de aves.

Abstract Estuaries are used by waterbirds as foraging, resting and nesting sites, serving also as shelter for migratory birds. The dynamics of this avifauna in an aquatic environment may be associated with the differences of time of day, tide height, temperature, wind speed and use of the site by different species. This study had the objective of evaluating behavioral aspects of aquatic birds, relating the influence of environmental variables with their activities. Bird counts were performed at the mouth of two important rivers of the state of Santa Catarina, Brazil, during two-hour intervals throughout the day in monthly samplings between June (2015) and May (2016). A total of 44 species were recorded, ten of which were migratory. The most recorded behaviors were foraging and resting. The Kruskal-Wallis analysis indicated no significant difference in behavior between the sampling intervals. The Bray-Curtis similarity test resulted in three groups: 1) - species that foraged most of the time; 2) - species that rested most of the time; and 3) - same time in both activities. The Indicator Species Analysis showed that 17 species were associated with only one microhabitat and 15 species with more than one. The Canonical Correlation Analysis indicated that only tide height, temperature and rainfall variables were correlated with the behaviors performed and only the resting activity was positively correlated with all variables. This may be associated with thermoregulation and the ability of some species to stay in midlitoral at high tide. The results demonstrate that different waterbird species used the studied areas in different ways. Thus, the heterogeneity of microhabitats in an aquatic environment of extreme importance for the coexistence and maintenance of the diversity of waterbirds.

https://doi.org/10.1590/1519-6984.225048 455 downloads

13.

Cladocera (Crustacea, Branchiopoda) species of Bahia State, Brazil: a critical update on species descriptions, distributions, and new records
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Macêdo, Rafael Lacerda

; Sousa, Francisco Diogo R.

; Jesus, Sheila Bonfim de

; Nunesmaia, Bárbara Janaina Bezerra

; Branco, Christina Wyss Castelo

; Elmoor-Loureiro, Lourdes M. A.

Nauplius

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

2021, Volume 29 elocation e2021011

Resumo: En | Texto: En | PDF: En

Abstract Despite the rising interest in cladoceran biogeography worldwide, many species distributions are still unknown to science, especially in naturally rich freshwater of the Neotropics. Herein we present a checklist of the taxa, giving the distributions of the valid species throughout 13 hydrographic basins within the two freshwater ecoregions of Northeastern Mata Atlântica and São Francisco. Superorder Cladocera comprises 72 known species in Bahia State classified into two orders: the Anomopoda, represented by Chydoridae (36 spp), Daphniidae (7), Macrothricidae (6), Bosminidae (4), Moinidae (3) and Ilyocryptidae (2); and Ctenopoda, represented by Sididae (8 spp). Species from the orders Onychopoda and Haplopoda are still lacking in Neotropical waters. The first compilation of the data on the Cladocera of Bahia, Brazil, is represented by this checklist and contains 38 new records for the state. Critical remarks on species distributions, as well as detailed information on sampling sites and geographic coordinates are also included.

https://doi.org/10.1590/2358-2936e2021011 314 downloads

14.

Detection of mammary adenocarcinoma metastases in a cat through 99mTc-thymine scintigraphy
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Castelo Branco, Paulo S.

; Gutfilen-Schlesinger, Gabriel

; Sena, Priscila

; Gutfilen-Schlesinger, Guile

; Souza, Sergio A. L.

; Gutfilen, Bianca

Veterinaria México OA

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

Jun 2020, Volume 7 Nº 2 elocation e02

Resumo: En | Texto: En | PDF: En

Abstract Mammary adenocarcinomas with metastases are more common in dogs than in cats. Their incidence is 1 in every 4,000 cats. In routine veterinary practice, laboratory exams for diagnosis of these neoplasms are nonspecific and scarcely used. Even though invasive procedure, biopsy, and histopathological findings are the gold standards that define the clinical approach, the clinical evaluation, and image assessment lead the way to the proper treatment, especially when surgical intervention is a possibility. This study describes the clinical signs, histopathological aspects, radiological and scintigraphic findings of a cat with mammary adenocarcinoma and metastases evaluated one hour after intravenous administration of 99mTc-thymine. Our focus was not to discuss the pathological aspects of the disease but the Nuclear Medicine role in metastases detection. Metastases, when lesser than 4mm, could go unnoticed by radiological exams, whereas scintigraphy may detect them. Using 99mTc-thymine scintigraphy, we successfully detected unsuspected metastases in the lungs, liver, and right kidney. Early diagnosis is the key to a better rate of survival due to the given treatment and prognostic. Hence, we strongly recommend the use of 99mTc-thymine scintigraphy as a complementary tool for breast cancer diagnosis in veterinary care.

https://doi.org/10.22201/fmvz.24486760e.2020.2.718 396 downloads

15.

OUTRO OLHAR PARA O FINANCIAMENTO DA PREVIDÊNCIA SOCIAL NO BRASIL: A CENTRALIDADE DA FORMALIZAÇÃO DO TRABALHO, AUMENTO DE PRODUTIVIDADE E GESTÃO DE RECEITAS
Facebook Twitter

Outras redes sociais
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Outras redes

Métricas
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Gentil, Denise Lobato

; Araújo, Eliane Cristina de

; Puty, Claudio Alberto Castelo Branco

; Silva, Carlos Patrick A.

Revista de Economia Contemporânea

Métricas do periódico
- Sobre o periódico
- SciELO Analytics

2020, Volume 24 Nº 3 elocation e202433

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO O artigo discute as variáveis relevantes para o financiamento da previdência social no Brasil, que têm sido desconsideradas no debate. Inicialmente, apresenta-se um modelo teórico que indica a relevância da produtividade, da formalização do trabalho e da eficiência de receitas para o financiamento da previdência. Analisa-se, na sequência, a trajetória dessas variáveis no Brasil, com sugestões de medidas para estimulá-las. Por fim, um exercício de simulação é realizado para testar os efeitos de mudanças nas variáveis sugeridas pelo modelo teórico sobre os resultados da previdência. As conclusões indicam que, quando considerados choques positivos na produtividade do trabalho, emprego formal e receita da previdência, o Regime Geral da Previdência Social (RGPS) torna-se superavitário. Uma implicação desse resultado é que os problemas de financiamento da previdência social não são resolvidos pelo corte de benefícios.

ABSTRACT This article analyzes a set of variables deemed relevant for the financing of social security in Brazil, which have been overlooked in the recent debate on the subject. At first, we introduce a theoretical model that highlights the key role of increasing productivity, expanding formal employment, and enhancing revenue efficiency in the financing of social security. We then analyze the trajectory of these variables in Brazil and suggest measures to stimulate them. Finally, we perform a simulation exercise to test the effects of changes in the selected variables on the outcomes of social security. The results indicate that in face of positive shocks in labor productivity, formal employment, and pension income, the General Social Security System (RGPS) results become a surplus. A key implication of this result is that problems in the financing of social security cannot be solved exclusively by cutting benefits.

https://doi.org/10.1590/198055272433 558 downloads

Exibindo

itens por página

Página de 8 Próxima

Selecione um ou mais resultados

Todos Ordem alfabética

Resultados

Gráfico comparativo Download CSV

Visualizar estatísticas de

Enviar resultado

E-mail do(s) destinatários*

Utilize ; (ponto e vírgula) para mais de um e-mail.

Enviar por e-mail

Esta página

Registros selecionados

Todos os registros (max. 300)

Alterar remetente, assunto e comentários

Seu email

Assunto

Comentários

Alterar remetente, assunto e comentários

Exportar resultados

Formato de exportação:

RIS (para EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citação

CSV (para Excel, etc)

Exportar:

Esta página

Itens selecionados

Todos os registros (max. 2000)

Mostrar mais

Sem resultados

Não foram encontrados documentos para sua pesquisa

Glossário e ajuda para busca

Você pode enriquecer sua busca de uma forma muito simples. Use os índices de pesquisa combinados com os conectores (AND ou OR) e especifique cada vez mais sua busca.

Por exemplo, se você deseja buscar artigos sobre
casos de dengue no Brasil em 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

Veja abaixo a lista completa de índices de pesquisa que podem ser usados:

Cód. do Índice	Elemento
ti	título do artigo
au	autor
kw	palavras-chave do artigo
subject	assunto (palavras do título, resumo e palavras-chave)
ab	resumo
ta	título abreviado da revista (ex. Cad. Saúde Pública)
journal_title	título completo da revista (ex. Cadernos de Saúde Pública)
la	código do idioma da publicação (ex. pt - Português, es - Espanhol)
type	tipo do documento
pid	identificador da publicação
publication_year	ano de publicação do artigo
sponsor	financiador
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

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

Todo o conteúdo de www.scielo.org, exceto onde está identificado, está licenciado sob uma Licença Creative Commons.
saiba mais »