Search | SciELO

Lantana caatingensis Moldenke (Verbenaceae) is an endemic plant from northeastern Brazil. However, its chemical composition is almost unknown. This study aimed to characterize the chemical compounds found in L. caatingensis and investigate the antileishmanial potential of its hydroalcoholic extract and polar fractions. Compounds present in the hydroalcoholic extract obtained from L. caatingensis leaves and its polar fractions (ethyl acetate and methanolic) were analyzed by liquid chromatography with a photodiode-array detector coupled to electrospray ionization quadrupole time-of-flight mass spectrometry. An antileishmanial assay was performed in a 96-well plate against Leishmania major promastigotes using resazurin on a plate spectrophotometer and the results were expressed as percentage of growth inhibition. Nine compounds were determined in the investigated extract and fractions, classified as flavonoids, flavonoid C-glycosides and phenylethanoid glycosides. The antileishmanial activity revealed that the hydroalcoholic extract and the ethyl acetate fraction were active against L. major promastigotes with inhibitory concentration of 71.78 and 26.86 µg mL-1, respectively, while the methanolic fraction was inactive (478.40 µg mL-1). This is the first report on the chemical composition and antileishmanial activity of L. caatingensis extracts. These results contribute to further knowledge of species belonging to the Lantana genus. Verbenaceae (Verbenaceae Brazil However unknown L photodiodearray photodiode array timeofflight time flight spectrometry 96well well 96 inhibition flavonoids Cglycosides C glycosides 7178 71 78 71.7 2686 26 86 26.8 mL1, mL1 mL 1, 1 mL-1 respectively 478.40 47840 478 40 (478.4 mL1. . mL-1) extracts genus 9 717 7 71. 268 2 8 26. mL- 478.4 4784 47 4 (478. 478. (478 (47 (4 (

https://doi.org/10.21577/0103-5053.20240113

Naphthoxazoles Derived from Lapachol as Fluorescent DNA Probes: Synthesis and Binding Studies with Calf Thymus DNA Probes
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Guimarães, Délis G.

; Santos, Victória L. A.

; Simplicio, Sidney S.

; Gonsalves, Arlan A.

; Gouveia, João J. S.

; Almeida, Fernanda B.

; Gusmão, Luiza A.

; Tedesco, Antonio C.

; Primo, Fernando L.

; Rolim, Larissa A.

; Araújo, Cleônia R. M.

Journal of the Brazilian Chemical Society

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2025, Volume 36 N. 4 elocation e-20240188

Abstract: En | Text: En | PDF: En

This study evaluated the potential of naphthoxazoles derived from lapachol as fluorescent deoxyribonucleic acid (DNA) probes. We synthesized three 2-substituted naphthoxazoles: one with a phenyl group (LOX1), and two with 2-hydroxyphenyl (LOX2) and 4-fluorophenyl (LOX3) groups, respectively. The compounds were synthesized using the Debus-Radziszewski reaction between the lapachol and aldehydes. The quantum yield (Φf) was determined using the classical relative method with 4’,6-diamidino-2-phenylindole (DAPI) as the standard, and the fluorescence lifetime (τf) was measured with a lifetime fluorescence spectrometer. The naphthoxazoles exhibited low fluorescence emission and consequently low values of Φf in their free form, demonstrating behavior similar to that of DAPI. These compounds displayed notably large Stokes shifts (approximately 340 nm) and the τf in the nanosecond range. DNA binding studies were conducted by monitoring changes in the absorption properties of naphthoxazoles in the absence and presence of calf thymus DNA at different concentrations. The results indicated that naphthoxazoles interacted with DNA through groove binding. LOX2 exhibited a binding constant (Kb) of 2.70 × 104 M-1, indicating strong binding to the biomolecule. These findings underscore the potential of LOX1, LOX2, and LOX3 as candidates for use as fluorescent DNA probes. (DNA probes 2substituted substituted 2 LOX1 LOX , (LOX1) 2hydroxyphenyl hydroxyphenyl (LOX2 4fluorophenyl fluorophenyl 4 (LOX3 groups respectively DebusRadziszewski Debus Radziszewski aldehydes (Φf 4,6diamidino2phenylindole 46diamidino2phenylindole diamidinophenylindole ,6 diamidino phenylindole 6 DAPI (DAPI standard (τf spectrometer form approximately 34 nm range concentrations Kb (Kb 270 70 2.7 10 M1, M1 M 1, 1 M-1 biomolecule (LOX1 (LOX 6diamidino2phenylindole 3 27 7 2. M-

https://doi.org/10.21577/0103-5053.20240188

PROPOSTA DE SÍNTESE ONE-POT: PRÁTICAS EXPERIMENTAIS DE QUÍMICA ORGÂNICA E MEDICINAL A PARTIR DA PREPARAÇÃO DO HETEROCICLO TIAZOL ONEPOT ONE POT ONE-POT
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Gonsalves, Arlan de Assis

; Santos, Victória Laysna dos Anjos

; Simplicio, Sidney Silva

; Guimarães, Délis Galvão

; Araújo, Cleônia Roberta Melo

Química Nova

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2025, Volume 48 N. 4 elocation e-20250059

Abstract: Pt | Text: Pt | PDF: Pt

In this work we explore some theoretical and practical aspects of one-pot synthesis. The focal point of the study is the preparation of the thiazole heterocycle, with an emphasis on theoretical aspects of the organic and medicinal chemistry of this important privileged structure. The entire set of experimental procedures and characterization steps explored in this work has the potential to assist in the training and/or technical improvement of undergraduate students, and contribute to the teaching of chemistry in Brazilian higher education. It is worth emphasizing these aspects because the experiments shown in the proposed practices involve simple, rapid, low-risk, and low-cost procedures, making it perfectly feasible to reproduce them in undergraduate classes, even in laboratories with limited material resources. onepot one pot synthesis heterocycle structure andor or students education simple rapid lowrisk, lowrisk low risk, risk low-risk lowcost cost classes resources

https://doi.org/10.21577/0100-4042.20250059

Germination and emergence of Astrocaryum murumuru Mart. under stratification in different temperature regimes Mart
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santos, Jucimara Gonçalves dos

; Ferreira, Sidney Alberto do Nascimento

; Gentil, Daniel Felipe de Oliveira

Journal of Seed Science

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 46 elocation e202446038

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

RESUMO: Astrocaryum murumuru é uma palmeira típica de áreas de várzea amazônica, cujas sementes são exploradas extrativamente para a fabricação de cosméticos. A germinação da espécie é demorada, evidenciando a necessidade de desenvolvimento de técnicas que acelerem este processo. Desse modo, esta pesquisa objetivou avaliar a germinação e o vigor de sementes de A. murumuru, submetidas a diferentes condições térmicas de estratificação. O delineamento experimental adotado foi o inteiramente casualizado, com quatro tratamentos (diferentes condições térmicas) e quatro repetições. Após a secagem dos diásporos, extração e embebição das sementes, estas (com grau de umidade de 26,8%) foram acondicionadas em sacos plásticos duplos contendo vermiculita, umedecida com água o equivalente a 60% de sua massa seca. Em seguida, foram mantidas nas seguintes condições: ambiente natural (27,8 ± 2,7 °C); estufa com temperatura de 40 °C, por 3 horas, por dia; estufa com temperatura de 40 °C, por 6 horas, por dia; e estufa com temperatura de 40 °C, por 9 horas, por dia. A estratificação sob temperatura a 40 °C/3 horas/dia proporciona melhor desempenho germinativo e de desenvolvimento inicial de plântulas de A. murumuru (51%), além de redução das sementes remanescentes dormentes (25%) e mortas (24%). RESUMO amazônica cosméticos demorada processo modo casualizado repetições diásporos 26,8% 268 26 8 vermiculita 60 seca seguida 27,8 278 27 (27, 2 7 2, °C C °C) 4 horas dia C3 °C/ horasdia 51%, 51 51% , (51%) 25% 25 (25% 24%. 24 24% . (24%) 26,8 27, (27 5 (51% (25 (24% 26, (2 (51 (24 ( (5

ABSTRACT: Astrocaryum murumuru is a palm tree typical of Amazonian lowland areas (floodplains), whose seeds are exploited extractively for the manufacture of cosmetics. Germination of the species takes time, highlighting the need to develop techniques that shorten this process. Therefore, this research aimed to evaluate the germination and vigor of A. murumuru seeds, subjected to different thermal conditions of stratification. The experimental design adopted was completely randomized, with four treatments (different thermal conditions) and four replications. After drying the diaspores, extracting and soaking the seeds, these (with moisture content of 26.8%) were placed in double plastic bags containing vermiculite, moistened with water equivalent to 60% of their dry mass. They were then maintained under the following conditions: natural environment (27.8 ± 2.7 °C); oven with a temperature of 40 °C for 3 hours per day; oven with a temperature of 40 °C for 6 hours per day; and oven with a temperature of 40 °C for 9 hours a day. Stratification at a temperature of 40 °C/3 hours/day provides better germination performance and initial development of A. murumuru seedlings (51%), in addition to reducing remaining dormant (25%) and dead (24%) seeds. ABSTRACT floodplains, floodplains , (floodplains) cosmetics time process Therefore A stratification randomized replications diaspores 26.8% 268 26 8 vermiculite 60 mass 27.8 278 27 (27. 2 7 2. C °C) 4 day C3 °C/ hoursday 51%, 51 51% (51%) 25% 25 (25% 24% 24 (24% (floodplains 26.8 27. (27 5 (51% (25 (24 26. (2 (51 ( (5

https://doi.org/10.1590/2317-1545v46288523

Pregnant women in the street context: social vulnerability context
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santos, Natally Araújo Pereira dos

; Silva, Sidney Bruno Lima da

; Mota, Ana Beatriz Oliveira da

; Estevam, Matheus Henrique

; Pinto, Erika Simone Galvão

; Souza, Nilba Lima de

Revista Brasileira de Saúde Materno Infantil

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 24 elocation e20240118

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

Resumo Objetivos: identificar elementos que influenciam e agregam na vulnerabilidade social vivenciada por mulheres que gestaram no contexto das ruas, segundo suas percepções. Métodos: estudo de abordagem qualitativa, mediante uso da História Oral Temática, desenvolvido em uma casa de acolhimento para mulheres em situação de rua. A população envolveu mães que gestaram no contexto das ruas. O tratamento das entrevistas ocorreu em três fases, preconizadas por Meihy e Ribeiro: transcrição, textualização e transcriação. Os dados foram analisados à luz da teoria da análise temática proposta por Braun e Clarke. Resultados: os seguintes eixos temáticos emergiram dos discursos das entrevistadas: Eixo temático 1: A dependência das drogas como escape da realidade vivida; Eixo temático 2: Imersas na violência; Eixo temático 3: A invisibilidade perante a sociedade; Eixo temático 4: A carência de uma assistência em saúde; Eixo temático 5: A ruptura dos laços familiares. Conclusão: mulheres que vivenciam gestações no contexto das ruas estão imersas em condições geradoras e/ou potencializadoras de vulnerabilidade social, a qual perpassa as necessidades específicas ao processo de gestar, os percalços inerentes à habitação rua, bem como a privação de direitos. Objetivos percepções Métodos qualitativa Temática rua fases Ribeiro transcrição transcriação Clarke Resultados entrevistadas 1 vivida 2 violência 3 sociedade 4 saúde 5 familiares Conclusão eou ou gestar direitos

Abstract Objectives: to identify elements that influence and contribute to the social vulnerability experienced by women who gave birth on the streets, according to their perceptions. Method: a qualitative study using Thematic Oral History, developed in a shelter for homeless women. The population included mothers who gave birth on the streets. The interviews were processed in three phases, as recommended by Meihy and Ribeiro: transcription, textualization, and transcreation. The data were analyzed in light of the theory of thematic analysis proposed by Braun and Clarke. Results: the following thematic axes emerged from the interviewees’ discourses: Thematic Axis 1: Drug addiction as an escape from the reality they live in; Thematic Axis 2: Immersed in violence; Thematic Axis 3: The lack of health care; Thematic Axis 4: The rupture of family ties; Thematic Axis 5: Invisibility to society. Conclusion: women who experience pregnancies in the context of the streets are immersed in conditions that generate and/or enhance social vulnerability, which permeates the specific needs of the gestation process, the obstacles inherent to living on the streets, as well as the deprivation of rights. Objectives perceptions Method History phases Ribeiro transcription textualization transcreation Clarke Results interviewees discourses 1 2 violence 3 care 4 ties 5 society Conclusion andor or process rights

https://doi.org/10.1590/1806-9304202400000118-en

Brazilian guidelines for allergen immunotherapy in the treatment of allergic asthma
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Aarestrup, Fernando Monteiro

; Taketomi, Ernesto Akio

; Lira, Geórgia Véras de Araújo Gueiros

; Wandalsen, Gustavo Fabo

; Galvão, Clóvis Eduardo Santos

; Alves, Gil Bardini

; Gonçalves, Marcos Reis

; Miziara, Mariana Graça Couto

; Casado, Sidney Souteban Maranhão

; Pereira, Veridiana Aun Rufino

; Solé, Dirceu

; Goudouris, Ekaterini Simões

; Kuschnir, Fábio Chigres

; Bernardo, Wanderley Marques

Revista da Associação Médica Brasileira

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 70 N. 11 elocation e024D7011

Abstract: En | Text: En | PDF: En

https://doi.org/10.1590/1806-9282.024d7011

Arbuscular mycorrhizal fungal communities associated with coffee intercropped with grevillea
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santos, Roberta de Souza

; Miguel, Divino Levi

; Freitas, Leandro Martins de

; Assis, Fábia Giovana do Val de

; Teixeira, Valber Dias

; Kemmelmeier, Karl

; Stürmer, Sidney Luiz

; Leal, Patrícia Lopes

Acta Botanica Brasilica

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 38 elocation e20230078

Abstract: En | Text: En | PDF: En

ABSTRACT Arbuscular mycorrhizal fungi (AMF) communities in coffee-cultivated areas in the northeastern region of Brazil have been insufficiently studied when compared to other Brazilian regions. This study determined AMF occurrence and richness in coffee-cultivated soils under different management systems in the State of Bahia, Brazil, and in soils from surrounding areas with pasture and native forest (control areas). Physicochemical soil characteristics in the different study areas were also evaluated. A total of 43 AMF spore morphotypes in 14 genera belonging to six families were recovered from soil samples from all study areas: Glomeraceae (35%), Acaulosporaceae (35%), Gigasporaceae (21%), Ambisporaceae (5%), Archaeosporaceae (2%) and Diversisporaceae (2%). Rhizophagus fasciculatus, Acaulospora mellea and Glomus sp. 1 were the most frequent fungi found in all areas. In the coffee-cultivated areas, 12 genera were identified, two of which (Dominikia and Fuscutata) had not yet been reported in association with coffee plants in Brazil. We concluded that soil physicochemical properties and AMF occurrence can distinguish study areas based on land use. The different coffee management systems did not influence AMF species richness, but the occurrence was influenced by both management and soil factors. (AMF coffeecultivated cultivated regions Bahia control . areas) evaluated 4 35%, 35 35% , (35%) 21%, 21 21% (21%) 5%, 5 5% (5%) 2% 2 (2% 2%. fasciculatus sp identified Dominikia Fuscutata use factors 3 (35% (21% (5% (2 (35 (21 (5 ( (3

https://doi.org/10.1590/1677-941x-abb-2023-0078

First study on the metazoan parasite community of Crenicichla strigata (Cichliformes: Cichlidae) Cichliformes (Cichliformes Cichlidae
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Mota-Júnior, Leonardo de Oliveira

; Santos, Paulo Venicius Nascimento

; Valentim, David Sales Sousa

; Oliveira, Marcos Sidney Brito

; Tavares-Dias, Marcos

Revista Brasileira de Parasitologia Veterinária

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 33 N. 3 elocation e012724

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

Resumo Este estudo descreveu o primeiro relato de parasitos metazoários em Crenicichla strigata. De 31 hospedeiros capturados na bacia do Rio Jari, na região da Amazônia oriental brasileira, foi coletado um total de 1.454 parasitos: Sciadicleithrum araguariensis, Sciadicleithrum joanae, Sciadicleithrum satanopercae, Posthodiplostomum sp., Genarchella genarchella, Contracaecum sp., Spirocamallanus peraccuratus, Acarina gen. sp. e Dolops geayi. Porém, a comunidade foi dominada por essas três espécies de Sciadicleithrum (Monogenea) e houve similar presença de parasitos em estágio larval e adulto. A prevalência total foi de100% e os hospedeiros estavam parasitados por duas ou três espécies, que tiveram dispersão randômica. A diversidade de Brillouin, riqueza de espécies de parasitos, índice de dominância de Berger-Parker e equitabilidade foram baixos. Houve correlação positiva da abundância de Posthodiplostomum sp. com o comprimento dos hospedeiros, enquanto a abundância de S. peraccuratus mostrou correlação negativa com o peso corporal dos peixes. Abundância de S. araguariensis, S. joane e S. satanopercae apresentou correlação negativa com o comprimento dos hospedeiros. A comunidade parasitária de C. strigata foi caracterizada por baixa diversidade, baixa riqueza, baixa intensidade e baixa abundância de espécies. 3 Jari brasileira 1454 1 454 1.45 araguariensis joanae sp genarchella gen geayi Porém Monogenea (Monogenea adulto de100 randômica Brillouin BergerParker Berger Parker baixos S peixes C 145 45 1.4 de10 14 4 1. de1

Abstract This study provides the first report of metazoan parasites in Crenicichla strigata. From 31 hosts caught in the Jari River basin, in the eastern Amazon region of Brazil, a total of 1454 parasites were collected: Sciadicleithrum araguariensis, Sciadicleithrum joanae, Sciadicleithrum satanopercae, Posthodiplostomum sp., Genarchella genarchella, Contracaecum sp., Spirocamallanus peraccuratus, Acarina gen. sp. and Dolops geayi. However, the community was dominated by the three species of Sciadicleithrum (Monogenea) and there was similar presence of parasites in the larval and adult stages. The total prevalence was 100% and each of the hosts was parasitized by two or three species, which presented random dispersion. Brillouin diversity, parasite species richness, Berger-Parker dominance index and evenness were low. There was positive correlation between the abundance of Posthodiplostomum sp. the hosts’ length, while the abundance of S. peraccuratus showed negative correlation with the body weight of fish. The abundance of S. araguariensis, S. joanae and S. satanopercae showed negative correlation with the hosts’ length. The parasite community of C. strigata was characterized by low diversity, low richness, low intensity and low abundance of species. 3 basin Brazil 145 collected araguariensis sp genarchella gen geayi However Monogenea (Monogenea stages 100 dispersion diversity richness BergerParker Berger Parker length S fish C 14 10 1

https://doi.org/10.1590/s1984-29612024063

Narratives of social educators on practices in institutional foster care
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Ito, Sidney Issao

; Azevêdo, Adriano Valério dos Santos

Estudos de Psicologia (Campinas)

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 41 elocation e220051

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

Resumo Objetivo O presente estudo objetivou analisar as narrativas de educadores sociais sobre suas práticas numa instituição de acolhimento para crianças e adolescentes no Sul do Brasil. Método Utilizou-se um roteiro de entrevista narrativa e um questionário sociodemográfico. Participaram da pesquisa 11 educadores sociais e as entrevistas foram analisadas por meio da teoria fundamentada nos dados. Foram construídas quatro categorias referentes às práticas (início, tipos, dimensões, contexto). Resultados As práticas são iniciadas de maneira simples e ocorrem gradualmente por meio do cuidado, da inserção do lúdico, e da afetividade. Foram identificados os aspectos da integralidade do cuidado e a atenção humanizada. Conclusão Os resultados mostraram que as práticas estão congruentes com as diretrizes propostas pelas políticas públicas, mas, destaca-se a necessidade de formação continuada para discutir especificidades do cuidado, e estratégias para avaliação das atividades desenvolvidas. Brasil Utilizouse Utilizou se sociodemográfico 1 dados início, início (início tipos dimensões contexto. contexto . contexto) lúdico afetividade humanizada públicas mas destacase destaca desenvolvidas

Abstract Objective This study aimed to analyze the narratives of social educators regarding their practices within a foster care institution for children and adolescents in South Brazil. Method A narrative interview script and a sociodemographic questionnaire were employed in the investigation, involving eleven participating social educators. The interviews underwent grounded theory analysis, resulting in four emergent categories pertaining to practices (initiation, types, dimensions, context). Results The practices initiate in a straightforward manner and unfold gradually through caregiving, the incorporation of play, and affection. Notably, aspects of comprehensive care and humanized attention were identified. Conclusion The results underscore that these practices adhere to guidelines outlined by public policies. However, they also emphasize the need for continuing education to discuss specific aspects of care and strategies for evaluating the undertaken activities. Brazil investigation analysis initiation, initiation (initiation types dimensions context. context . context) caregiving play affection Notably identified policies However activities

https://doi.org/10.1590/1982-0275202441e220051

10.

Production of Silver Nanoparticles Mediated by Aqueous Extracts of Tucumã (Astrocaryum aculeatum) Pulp Astrocaryum aculeatum
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santos, Sidney S. dos

; Couto, Ricardo A. A. de

; Silva, Ingrid R. da

; Aouada, Marcia Regina M.

; Costantino, Vera R. L.

; Costa, Luiz P. da

; Perotti, Gustavo F.

Journal of the Brazilian Chemical Society

Journal Metrics
- Sobre o periódico
- SciELO Analytics

may 2023, Volume 34 N. 5 Pages 705 - 712

Abstract: En | Text: En | PDF: En

Tucumã (Astrocaryum aculeatum) pulp presents a large number of secondary metabolites that can mediate the synthesis of metallic nanoparticles through a greener and more sustainable synthetic route than traditional ones. This study investigated the production of silver nanoparticles (AgNPs) mediated by aqueous extracts of tucumã pulp assessing different parameters, such as temperature, concentration of extract, and pH values of the reaction media. The alkaline reaction media produced the most intense and well-defined bands around 400 nm in the electronic spectra, indicating the formation of AgNPs in the three concentrations of tucumã pulp evaluated. The increase in the temperature of the reaction media also enhanced the surface plasmon resonance band of AgNPs but it increased the polydispersivity of produced nanoparticles according to the dynamic light scattering (DLS) and transmission electron microscopy (TEM) data. Zeta potential results indicated moderate stability of the AgNPs (close to -30 mV). Antimicrobial assessment of the colloidal metal particles indicated microbicide activity against the Gram-negative Escherichia coli bacterium. Astrocaryum aculeatum ones (AgNPs parameters extract welldefined well defined 40 spectra evaluated DLS (DLS TEM (TEM data close 30 -3 mV. mV . mV) Gramnegative Gram negative bacterium 4 3 -

https://doi.org/10.21577/0103-5053.20220141

11.

Brazilian Thoracic Association recommendations for the management of post-tuberculosis lung disease posttuberculosis post tuberculosis
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Silva, Denise Rossato

; Santos, Ana Paula

; Visca, Dina

; Bombarda, Sidney

; Dalcolmo, Margareth Maria Pretti

; Galvão, Tatiana

; Miranda, Silvana Spíndola de

; Parente, Ana Alice Amaral Ibiapina

; Rabahi, Marcelo Fouad

; Sales, Roberta Karla Barbosa de

; Migliori, Giovanni Battista

; Mello, Fernanda Carvalho de Queiroz

Jornal Brasileiro de Pneumologia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 49 N. 6 elocation e20230269

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

RESUMO Historicamente, todos os esforços contra a tuberculose concentraram-se no diagnóstico rápido e no tratamento efetivo para quebrar a cadeia de transmissão do Mycobacterium tuberculosis. No entanto, nos últimos anos, têm sido encontradas mais e mais evidências sobre as dramáticas consequências da condição definida como doença pulmonar pós-tuberculose (DPPT). Aproximadamente um terço dos pacientes que sobrevivem à tuberculose pulmonar enfrenta morbidades consideráveis e persistentes, incluindo comprometimento respiratório, desafios psicossociais e redução da qualidade de vida relacionada à saúde após o término do tratamento. Diante da importante carga global e local da tuberculose, bem como da carga estimada da DPPT, considerou-se urgente o desenvolvimento de um documento de consenso por uma sociedade científica brasileira - a Sociedade Brasileira de Pneumologia e Tisiologia (SBPT) - para a prevenção e manejo dessa condição, a fim de alocar recursos de forma adequada para e nos serviços de tuberculose e servir de guia para os profissionais de saúde. Uma equipe de onze pneumologistas e um metodologista foi criada pela SBPT para revisar as evidências atuais sobre a DPPT e desenvolver recomendações adaptadas ao contexto brasileiro. O painel de especialistas selecionou os temas com base nas evidências atuais e diretrizes internacionais. Durante a primeira fase, três membros do painel redigiram as recomendações, que foram divididas em três seções: definição e prevalência de DPPT, avaliação da DPPT e manejo da DPPT. Na segunda fase, todos os membros do painel analisaram, discutiram e revisaram as recomendações até chegar a um consenso. O documento foi aprovado formalmente pela SBPT em sessão especial organizada durante o Congresso Anual da SBPT de 2023. Historicamente concentraramse concentraram se tuberculosis entanto anos póstuberculose pós . (DPPT) persistentes respiratório considerouse considerou (SBPT brasileiro internacionais fase seções analisaram 2023 (DPPT 202 20 2

ABSTRACT Historically, all efforts against tuberculosis were focused on rapid diagnosis and effective treatment to break the chain of transmission of Mycobacterium tuberculosis. However, in the last few years, more and more evidence has been found on the dramatic consequences of the condition defined as post-tuberculosis lung disease (PTLD). Approximately one third of patients surviving pulmonary tuberculosis face considerable ongoing morbidities, including respiratory impairment, psychosocial challenges, and reduced health-related quality of life after treatment completion. Given the important global and local burden of tuberculosis, as well as the estimated burden of PTLD, the development of a consensus document by a Brazilian scientific society-Sociedade Brasileira de Pneumologia e Tisiologia (SBPT)-was considered urgent for the prevention and management of this condition in order to allocate resources to and within tuberculosis services appropriately and serve as a guide for health care professionals. A team of eleven pulmonologists and one methodologist was created by the SBPT to review the current evidence on PTLD and develop recommendations adapted to the Brazilian context. The expert panel selected the topics on the basis of current evidence and international guidelines. During the first phase, three panel members drafted the recommendations, which were divided into three sections: definition and prevalence of PTLD, assessment of PTLD, and management of PTLD. In the second phase, all panel members reviewed, discussed, and revised the recommendations until a consensus was reached. The document was formally approved by the SBPT in a special session organized during the 2023 SBPT Annual Conference. Historically However years posttuberculosis post . (PTLD) morbidities impairment challenges healthrelated related completion societySociedade society Sociedade SBPTwas professionals context guidelines phase sections reviewed discussed reached 202 Conference (PTLD 20 2

https://doi.org/10.36416/1806-3756/e20230269

12.

Buffered 2% articaine in buccal infiltration of mandibular molars: a randomized triple-blind clinical trial 2 molars tripleblind triple blind
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

LOAYZA, Sandro Alexander Lévano

; BARBIN, Thomas

; SANTOS, Victor Augusto Benedicto dos

; GROPPO, Francisco Carlos

; AMORIM, Klinger de Souza

; PAIVA, Daniel Felipe Fernandes

; FIGUEROBA, Sidney Raimundo

Brazilian Oral Research

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 37 elocation e132

Abstract: En | Text: En | PDF: En

Abstract This crossover study aimed to compare the anesthetic effects of buffered 2% articaine with 1:200,000 epinephrine with that of non-buffered 4% articaine with 1:200,000 epinephrine. Forty-seven volunteers were administered two doses of anesthesia in the buccal region of the second mandibular molars in two sessions using 1.8 mL of different local anesthetic solutions. The onset time and duration of pulp anesthesia, soft tissue pressure pain threshold, and the score of pain on puncture and burning during injection were evaluated. The operator, volunteers, and statistician were blinded. There were no significant differences in the parameters: onset of soft tissue anesthesia (p = 0.80), duration of soft tissue anesthesia (p = 0.10), onset of pulpal anesthesia in the second (p = 0.28) and first molars (p = 0.45), duration of pulp anesthesia of the second (p = 0.60) and first molars (p = 0.30), pain during puncture (p = 0.82) and injection (p = 0.80). No significant adverse events were observed. Buffered 2% articaine with 1:200,000 epinephrine did not differ from non-buffered 4% articaine with 1:200,000 epinephrine considering anesthetic success, safety, onset, duration of anesthesia, and pain on injection. 2 1200,000 1200000 1 200,000 200 000 1:200,00 nonbuffered non 4 Fortyseven Forty seven 18 8 1. solutions threshold evaluated operator blinded parameters p 0.80, 080 0.80 , 0 80 0.80) 0.10, 010 0.10 10 0.10) 0.28 028 28 0.45, 045 0.45 45 0.45) 0.60 060 60 0.30, 030 0.30 30 0.30) 0.82 082 82 0.80. . observed success safety 1200 1200,00 120000 200000 200,00 20 00 1:200,0 08 0.8 01 0.1 0.2 02 04 0.4 0.6 06 6 03 0.3 3 120 1200,0 12000 20000 200,0 1:200, 0. 12 1200, 2000 200, 1:200 1:20 1:2 1:

https://doi.org/10.1590/1807-3107bor-2023.vol37.0132

13.

COVID-19 outcomes in people living with HIV: Peering through the waves COVID19 COVID 19 COVID-1 HIV COVID1 1 COVID-
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Sales, Thaís Lorenna Souza

; Souza-Silva, Maíra Viana Rego

; Delfino-Pereira, Polianna

; Neves, João Victor Baroni

; Sacioto, Manuela Furtado

; Assis, Vivian Costa Morais de

; Duani, Helena

; Oliveira, Neimy Ramos de

; Sampaio, Natália da Cunha Severino

; Ramos, Lucas Emanuel Ferreira

; Schwarzbold, Alexandre Vargas

; Jorge, Alzira de Oliveira

; Scotton, Ana Luiza Bahia Alves

; Castro, Bruno Mateus de

; Silva, Carla Thais Cândida Alves da

; Ramos, Carolina Marques

; Anschau, Fernando

; Botoni, Fernando Antonio

; Grizende, Genna Maira Santos

; Nascimento, Guilherme Fagundes

; Ruschel, Karen Brasil

; Menezes, Luanna Silva Monteiro

; Castro, Luís César de

; Nasi, Luiz Antônio

; Carneiro, Marcelo

; Godoy, Mariana Frizzo de

; Nogueira, Matheus Carvalho Alves

; Guimarães Júnior, Milton Henriques

; Ziegelmann, Patricia Klarmann

; Almeida, Rafaela Charão de

; Francisco, Saionara Cristina

; Silveira Neto, Sidney Teodoro

; Araújo, Silvia Ferreira

; Avelino-Silva, Thiago Junqueira

; Aliberti, Márlon Juliano Romero

; Pires, Magda Carvalho

; Silva, Eduardo Sérgio da

; Marcolino, Milena Soriano

Clinics

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 78 elocation 100223

Abstract: En | Text: En | PDF: En

Abstract Objective To evaluate clinical characteristics and outcomes of COVID-19 patients infected with HIV, and to compare with a paired sample without HIV infection. Methods This is a substudy of a Brazilian multicentric cohort that comprised two periods (2020 and 2021). Data was obtained through the retrospective review of medical records. Primary outcomes were admission to the intensive care unit, invasive mechanical ventilation, and death. Patients with HIV and controls were matched for age, sex, number of comorbidities, and hospital of origin using the technique of propensity score matching (up to 4:1). They were compared using the Chi-Square or Fisher's Exact tests for categorical variables and the Wilcoxon for numerical variables. Results Throughout the study, 17,101 COVID-19 patients were hospitalized, and 130 (0.76%) of those were infected with HIV. The median age was 54 (IQR: 43.0;64.0) years in 2020 and 53 (IQR: 46.0;63.5) years in 2021, with a predominance of females in both periods. People Living with HIV (PLHIV) and their controls showed similar prevalence for admission to the ICU and invasive mechanical ventilation requirement in the two periods, with no significant differences. In 2020, in-hospital mortality was higher in the PLHIV compared to the controls (27.9% vs. 17.7%; p = 0.049), but there was no difference in mortality between groups in 2021 (25.0% vs. 25.1%; p > 0.999). Conclusions Our results reiterate that PLHIV were at higher risk of COVID-19 mortality in the early stages of the pandemic, however, this finding did not sustain in 2021, when the mortality rate is similar to the control group. COVID19 COVID 19 COVID-1 infection (202 2021. . 2021) records unit death sex comorbidities up 41. 41 4 1 4:1) ChiSquare Chi Square Fishers Fisher s study 17101 17 101 17,10 hospitalized 13 0.76% 076 0 76 (0.76% 5 IQR (IQR 43.064.0 430640 43.0 64.0 43 64 43.0;64.0 202 46.063.5 460635 46.0 63.5 46 63 46.0;63.5 (PLHIV differences inhospital 27.9% 279 27 9 (27.9 vs 17.7% 177 7 0.049, 0049 0.049 , 049 0.049) 25.0% 250 25 (25.0 25.1% 251 0.999. 0999 0.999 999 0.999) pandemic however group COVID1 COVID- (20 4:1 1710 10 17,1 0.76 07 (0.76 064 43.064. 43064 430 43. 640 64. 6 43.0;64. 20 063 46.063. 46063 460 46. 635 63. 46.0;63. 27.9 2 (27. 17.7 004 0.04 04 25.0 (25. 25.1 099 0.99 99 (2 4: 171 17, 0.7 (0.7 06 43.064 4306 43.0;64 46.063 4606 46.0;63 27. (27 17. 00 0.0 25. (25 09 0.9 ( 0. (0. 43.06 43.0;6 46.06 46.0;6 (0 43.0; 46.0;

https://doi.org/10.1016/j.clinsp.2023.100223

14.

Clinical characteristics and outcomes of patients with COVID-19 admitted to the intensive care unit during the first and second waves of the pandemic in Brazil: a single-center retrospective cohort study COVID19 COVID 19 COVID-1 Brazil singlecenter single center COVID1 1 COVID-
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Corrêa, Thiago Domingos

; Midega, Thais Dias

; Cordioli, Ricardo Luiz

; Barbas, Carmen Silvia Valente

; Rabello Filho, Roberto

; Silva, Bruno Caldin da

; Silva Júnior, Moacyr

; Nawa, Ricardo Kenji

; Carvalho, Fabrício Rodrigues Torres de

; Matos, Gustavo Faissol Janot de

; Lucinio, Neide Marcela

; Rodrigues, Rodrigo Dias

; Eid, Raquel Afonso Caserta

; Bravim, Bruno de Arruda

; Pereira, Adriano José

; Santos, Bento Fortunato Cardoso dos

; Pinho, João Renato Rebello

; Pardini, Andreia

; Teich, Vanessa Damazio

; Laselva, Claudia Regina

; Cendoroglo Neto, Miguel

; Klajner, Sidney

; Ferraz, Leonardo José Rolim

einstein (São Paulo)

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 21 elocation eAO0233

Abstract: En | Text: En | PDF: En

ABSTRACT Objective To describe and compare the clinical characteristics and outcomes of patients admitted to intensive care units during the first and second waves of the COVID-19 pandemic. Methods In this retrospective single-center cohort study, data were retrieved from the Epimed Monitor System; all adult patients admitted to the intensive care unit between March 4, 2020, and October 1, 2021, were included in the study. We compared the clinical characteristics and outcomes of patients admitted to the intensive care unit of a quaternary private hospital in São Paulo, Brazil, during the first (May 1, 2020, to August 31, 2020) and second (March 1, 2021, to June 30, 2021) waves of the COVID-19 pandemic. Results In total, 1,427 patients with COVID-19 were admitted to the intensive care unit during the first (421 patients) and second (1,006 patients) waves. Compared with the first wave group [median (IQR)], the second wave group was younger [57 (46-70) versus 67 (52-80) years; p<0.001], had a lower SAPS 3 Score [45 (42-52) versus 49 (43-57); p<0.001], lower SOFA Score on intensive care unit admission [3 (1-6) versus 4 (2-6); p=0.018], lower Charlson Comorbidity Index [0 (0-1) versus 1 (0-2); p<0.001], and were less frequently frail (10.4% versus 18.1%; p<0.001). The second wave group used more noninvasive ventilation (81.3% versus 53.4%; p<0.001) and high-flow nasal cannula (63.2% versus 23.0%; p<0.001) during their intensive care unit stay. The intensive care unit (11.3% versus 10.5%; p=0.696) and in-hospital mortality (12.3% versus 12.1%; p=0.998) rates did not differ between both waves. Conclusion In the first and second waves, patients with severe COVID-19 exhibited similar mortality rates and need for invasive organ support, despite the second wave group being younger and less severely ill at the time of intensive care unit admission. COVID19 COVID 19 COVID-1 pandemic singlecenter single center study System 2020 2021 Paulo Brazil May 31 30 total 1427 427 1,42 421 (42 1,006 1006 006 (1,00 median IQR, IQR , (IQR)] 57 [5 4670 46 70 (46-70 6 5280 52 80 (52-80 years p<0.001, p0001 p p<0.001 0 001 p<0.001] 45 [4 4252 42 (42-52 4357 43 (43-57) [ 16 (1-6 26 2 (2-6) p=0.018, p0018 p=0.018 018 p=0.018] 01 (0-1 02 (0-2) 10.4% 104 10 (10.4 18.1% 181 18 p<0.001. . 81.3% 813 81 (81.3 53.4% 534 53 highflow high flow 63.2% 632 63 (63.2 23.0% 230 23 stay 11.3% 113 11 (11.3 10.5% 105 5 p=0.696 p0696 696 inhospital 12.3% 123 12 (12.3 12.1% 121 p=0.998 p0998 998 support COVID1 COVID- 202 142 1,4 (4 1,00 100 00 (1,0 (IQR) 467 7 (46-7 528 8 (52-8 p000 p<0.00 425 (42-5 435 (43-57 (1- (2-6 p001 p=0.01 (0- (0-2 10.4 (10. 18.1 81.3 (81. 53.4 63.2 (63. 23.0 11.3 (11. 10.5 p=0.69 p069 69 12.3 (12. 12.1 p=0.99 p099 99 20 14 ( 1,0 (1, (IQR (46- (52- p00 p<0.0 (42- (43-5 (1 (2- p=0.0 (0 10. (10 18. 81. (81 53. 63. (63 23. 11. (11 p=0.6 p06 12. (12 p=0.9 p09 9 (46 (52 p0 p<0. (43- (2 p=0. (8 (6 (5 p<0 (43 p=0 p< p=

https://doi.org/10.31744/einstein_journal/2023ao0233

15.

Mortalidade por Insuficiência Cardíaca durante a Pandemia da COVID-19: Insights de uma Coorte de Hospitais Públicos no Brasil COVID19 COVID 19 COVID-19 COVID1 1 COVID-1 COVID-
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Fernandes-Silva, Miguel M.

; Adam, Eduardo Leal

; Bernardez-Pereira, Sabrina

; Silva, Suzana Alves

; Passaglia, Luiz Guilherme

; Pereira, Kleber Renato Ponzi

; Guedes, Marco Antônio Vieira

; Souza Neto, João David de

; Paola, Ângelo Amato Vincenzo de

; Rivera, Maria Alayde Mendonça

; Resende, Elmiro Santos

; Albuquerque, Denilson Campos de

; Bacal, Fernando

; Ribeiro, Antônio Luiz Pinho

; Morgan, Louise

; Smith Jr, Sidney C.

; Taniguchi, Fábio Papa

Arquivos Brasileiros de Cardiologia

Journal Metrics
- Sobre o periódico
- SciELO Analytics

nov 2022, Volume 119 N. 5 Pages 804 - 808

Abstract: Pt | Text: Pt | PDF: Pt

https://doi.org/10.36660/abc.20220080

Showing

itens per page

Page of 17 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

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

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

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

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »