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[SciELO Preprints] - Guidelines on the Diagnosis and Treatment of Hypertrophic Cardiomyopathy – 2024
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Fernandes, Fabio Simões, Marcus V. Correia, Edileide de Barros Marcondes-Braga, Fabiana G. Coelho-Filho, Otavio Rizzi Mesquita, Cláudio Tinoco Mathias-Junior, Wilson Rochitte, Carlos Eduardo Ramires, Felix José Alvarez Alves, Silvia Marinho Martins Montera, Marcelo Westerlund Lopes, Renato Delascio Oliveira-Junior, Mucio Tavares Scolari, Fernando L. Avila, Walkiria Samuel Canesin, Manoel Fernandes Bacal, Fernando Bocchi, Edimar Alcides Moura, Lídia Ana Zytynski Saad, Eduardo Benchimol Scanavacca, Mauricio I. Valdigem, Bruno Pereira Cano , Manuel Nicolas Abizaid , Alexandre Ribeiro, Henrique Barbosa Lemos-Neto, Pedro Alves Ribeiro, Gustavo Calado de Aguiar Jatene, Fabio Biscegli Dias, Ricardo Ribeiro Beck-da-Silva, Luis Rohde, Luis Eduardo P. Bittencourt, Marcelo Imbroinise Pereira, Alexandre Krieger, José Eduardo Villacorta, Humberto Martins, Wolney de Andrade Figueiredo-Neto, José Albuquerque de Cardoso , Juliano Novaes Pastore, Carlos Alberto Jatene, Ieda Biscegli Tanaka, Ana Cristina Sayuri Hotta, Viviane Tiemi Romano, Minna Moreira Dias Albuquerque, Denilson Campos de Mourilhe-Rocha, Ricardo Hajjar, Ludhmila Abrahão Brito, Fabio Sandoli de Caramelli , Bruno Calderaro, Daniela Farsky, Pedro Silvio Colafranceschi , Alexandre Siciliano Pinto, Ibraim Masciarelli Vieira , Marcelo Luiz Campos Danzmann, Luiz Claudio Barberato , Silvio Henrique Mady, Charles Martinelli-Filho, Martino Torbey , Ana Flavia Malheiros Schwartzmann, Pedro Vellosa Macedo, Ariane Vieira Scarlatelli Ferreira , Silvia Moreira Ayub Schmidt, Andre Melo , Marcelo Dantas Tavares de Lima-Filho, Moysés Oliveira Sposito, Andrei C. Brito, Flavio de Souza Biolo, Andreia Madrini-Junior, Vagner Rizk, Stéphanie Itala Mesquita, Evandro Tinoco

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Publication date: 2024-04-08

Abstract: Pt Es En

A cardiomiopatia hipertrófica (CMH) é uma forma de doença do músculo cardíaco de causa genética, caracterizada pela hipertrofia das paredes ventriculares. O diagnóstico requer detecção por métodos de imagem (Ecocardiograma ou Ressonância Magnética Cardíaca) de qualquer segmento da parede do ventrículo esquerdo com espessura > 15 mm, sem outra causa provável. A análise genética permite identificar mutações de genes codificantes de diferentes estruturas do sarcômero responsáveis pelo desenvolvimento da CMH em cerca de 60% dos casos, permitindo o rastreio de familiares e aconselhamento genético, como parte importante do manejo dos pacientes e familiares. Vários conceitos sobre a CMH foram recentemente revistos, incluindo sua prevalência de 1 em 250 indivíduos, não sendo, portanto, uma doença rara, mas subdiagnosticada. A vasta maioria dos pacientes é assintomática. Naqueles sintomáticos, a obstrução do trato de saída do ventrículo esquerdo (OTSVE) é o principal distúrbio responsável pelos sintomas, devendo-se investigar a sua presença em todos os casos. Naqueles em que o ecocardiograma em repouso ou com Manobra de Valsalva não detecta gradiente intraventricular significativo (> 30 mmHg), devem ser submetidos à ecocardiografia com esforço físico para detecção da OTSVE.   Pacientes com sintomas limitantes e grave OTSVE, refratários ao uso de betabloqueadores e verapamil, devem receber terapias de redução septal ou uso de novas drogas inibidoras da miosina cardíaca. Por fim, os pacientes adequadamente identificados com risco aumentado de morta súbita podem receber medida profilática com implante de cardiodesfibrilador implantável (CDI).

La miocardiopatía hipertrófica (MCH) es una forma de enfermedad cardíaca de origen genético, caracterizada por el engrosamiento de las paredes ventriculares. El diagnóstico requiere la detección mediante métodos de imagen (Ecocardiograma o Resonancia Magnética Cardíaca) que muestren algún segmento de la pared ventricular izquierda con un grosor > 15 mm, sin otra causa probable. El análisis genético permite identificar mutaciones en genes que codifican diferentes estructuras del sarcómero responsables del desarrollo de la MCH en aproximadamente el 60% de los casos, lo que permite el tamizaje de familiares y el asesoramiento genético, como parte importante del manejo de pacientes y familiares. Varios conceptos sobre la MCH han sido revisados recientemente, incluida su prevalencia de 1 entre 250 individuos, por lo tanto, no es una enfermedad rara, sino subdiagnosticada. La gran mayoría de los pacientes son asintomáticos. En los casos sintomáticos, la obstrucción del tracto de salida ventricular izquierdo (TSVI) es el trastorno principal responsable de los síntomas, y su presencia debe investigarse en todos los casos. En aquellos en los que el ecocardiograma en reposo o la maniobra de Valsalva no detecta un gradiente intraventricular significativo (> 30 mmHg), deben someterse a ecocardiografía de esfuerzo para detectar la obstrucción del TSVI. Los pacientes con síntomas limitantes y obstrucción grave del TSVI, refractarios al uso de betabloqueantes y verapamilo, deben recibir terapias de reducción septal o usar nuevos medicamentos inhibidores de la miosina cardíaca. Finalmente, los pacientes adecuadamente identificados con un riesgo aumentado de muerte súbita pueden recibir medidas profilácticas con el implante de un cardioversor-desfibrilador implantable (CDI).

Hypertrophic cardiomyopathy (HCM) is a form of genetically caused heart muscle disease, characterized by the thickening of the ventricular walls. Diagnosis requires detection through imaging methods (Echocardiogram or Cardiac Magnetic Resonance) showing any segment of the left ventricular wall with a thickness > 15 mm, without any other probable cause. Genetic analysis allows the identification of mutations in genes encoding different structures of the sarcomere responsible for the development of HCM in about 60% of cases, enabling screening of family members and genetic counseling, as an important part of patient and family management. Several concepts about HCM have recently been reviewed, including its prevalence of 1 in 250 individuals, hence not a rare but rather underdiagnosed disease. The vast majority of patients are asymptomatic. In symptomatic cases, obstruction of the left ventricular outflow tract (LVOT) is the primary disorder responsible for symptoms, and its presence should be investigated in all cases. In those where resting echocardiogram or Valsalva maneuver does not detect significant intraventricular gradient (> 30 mmHg), they should undergo stress echocardiography to detect LVOT obstruction. Patients with limiting symptoms and severe LVOT obstruction, refractory to beta-blockers and verapamil, should receive septal reduction therapies or use new drugs inhibiting cardiac myosin. Finally, appropriately identified patients at increased risk of sudden death may receive prophylactic measure with implantable cardioverter-defibrillator (ICD) implantation.

https://doi.org/10.1590/SciELOPreprints.8394

Steps of cryopreservation of coffee seeds: physiological responses and antioxidant systems
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Souza, Ana Cristina de

; Costa, Marina Chagas

; Figueiredo, Madeleine Alves de

; Pereira, Cristiane Carvalho

; Coelho, Stefânia Vilas Boas

; Vilela, Ana Luiza Oliveira

; Pereira, Diego de Souza

; Rosa, Sttela Dellyzete Veiga Franco da

Ciência Rural

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2024, Volume 54 N. 2 elocation e20220480

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

ABSTRACT: The cryopreservation of plant germplasm at ultralow temperatures is an alternative technique for the long-term storage of seeds of the genus Coffea sp. However, for this technique to be successful, cell integrity must be maintained at all stages of the process on the basis of scientific research. The present study investigated validated cryopreservation protocols for Coffea arabica L. seeds and evaluate the effects on the physiological and biochemical characteristics of the seeds at each stage of the process. Seeds were dried on silica gel or with saturated saline solution, precooled or not in a biofreezer, immersed in nitrogen, and reheated in a water bath. After each of these steps, the physiological and biochemical quality of the seeds was determined. Pre-cooling is a step that can be dispensed with in the cryopreservation of Coffea arabica seeds, direct immersion in liquid nitrogen being more indicated. Coffea arabica L. seeds tolerate cryopreservation after rapid drying in silica gel up to water contents of 17 or 20% (wb), with greater survival at 17%. The enzyme activities of catalase, polyphenol oxidase and peroxidase are indicators of the quality of C. arabica L. seeds subjected to cryopreservation.

RESUMO: A criopreservação de germoplasma vegetal em temperaturas ultrabaixas é uma alternativa para o armazenamento em longo prazo de sementes do gênero Coffea sp. Entretanto, para que essa técnica apresente sucesso, a realização de pesquisas que garantam a manutenção da integridade celular em todas as etapas do processo é de fundamental importância. O objetivo com o presente trabalho foi investigar protocolos de criopreservação validados para sementes de Coffea arabica L., avaliando separadamente, os efeitos sobre as características fisiológicas e bioquímicas das sementes, em cada etapa do processo. As sementes foram secadas em sílica gel ou em solução salina saturada, submetidas ou não ao pré-resfriamento em biocongelador, em seguida imersas no nitrogênio e reaquecidas em banho-maria. Após cada uma dessas etapas, a qualidade fisiológica e bioquímica das sementes foi determinada. O pré-resfriamento é uma etapa que pode ser dispensada na criopreservação de sementes de Coffea arabica, sendo mais indicada a imersão direta em nitrogênio líquido. Sementes de Coffea arabica L. toleram a criopreservação após secagem rápida em sílica gel até teores de água de 17 ou 20% (wb), com maior sobrevivência a 17%. A atividade das enzimas catalase, polifenoloxidase e peroxidase são indicadoras da qualidade de sementes de Coffea arabica L. submetidas à criopreservação.

https://doi.org/10.1590/0103-8478cr20220480

Growth of long bones in European and Japanese quail from the 13th day of incubation to day 35 post-hatch
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FIGUEROA, CHRISTIAN DOUGLAS N.

; CRUZ, FLAVIA K. DA

; KANEKO, ISABELLE N.

; BASAGLIA, RODRIGO A.

; OLIVEIRA, CARLOS ANTONIO L. DE

; IWAKI, LILIAN CRISTINA V.

; MURAKAMI, ALICE E.

; SANTOS, TATIANA C.

Anais da Academia Brasileira de Ciências

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2023, Volume 95 Suppl. 2 elocation e20220573

Abstract: En | Text: En | PDF: En

Abstract This study described the growth, morphometric, biomechanical, and chemical properties of the femur, tibiotarsus, and tarsometatarsus of European and Japanese quail. Analyses were performed at 13 and 15 days of incubation, at hatch, and at 4, 7, 10, 14, 21, 28, and 35 days post-hatch (n=6/subspecies/period). Bone specimens were analyzed by cone-beam computed tomography, biomechanical assays, chemical analyses, and histomorphometry. Variables were fitted by the Gompertz function and its derivative or assessed using the analysis of variance. Analysis of the derivative of Gompertz curves showed that the growth behavior of the tarsometatarsal bone was similar between quail subspecies, and the femur and tibiotarsus of European quail increased first in width and then in length, whereas the opposite occurred in Japanese quail. There was an interaction between quail subspecies and days of growth on femoral, tarsometatarsal, and tibiotarsal bone densities. Femoral and tibiotarsal cross-sectional areas were influenced by the interaction of quail subspecies and day of growth. Interaction effects were significant for breaking strength and phosphorus percentage. European and Japanese quail have different femoral and tibiotarsal growth patterns, especially in the first few days after hatching, whereas tarsometatarsal growth is similar between subspecies.

https://doi.org/10.1590/0001-3765202320220573

Vascular retinal findings after COVID-19 vaccination in 11 cases: a coincidence or consequence?
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Silva, Letícia S. C. da

; Finamor, Luciana P. S.

; Andrade, Gabriel C.

; Lima, Luiz H.

; Zett, Claudio

; Muccioli, Cristina

; Sarraf, Eduardo P.

; Marinho, Paula M.

; Peruchi, Julia

; Oliveira, Raiza D. de L.

; Giralt, Lena

; Charcan, Ivonne

; Fonollosa, Alex

; Diaz, Jose D.

; Davis, Janet L.

; Nascimento, Heloisa

; Belfort Jr, Rubens

Arquivos Brasileiros de Oftalmologia

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apr 2022, Volume 85 N. 2 Pages 158 - 165

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

RESUMO Objetivos: o principal objetivo deste estudo foi descrever pacientes com achados vasculares retinianos temporalmente relacionados à vacinação contra COVID-19. Com maior notificação de possíveis eventos adversos similares, esperamos compreender a real dimensão e relevância do que foi apresentado. Métodos: Onze pacientes com queixas visuais após vacinação contra COVID-19 foram estudados. Os dados analisados foram: idade, gênero, tipo de vacinação, tempo de aparecimento de sintomas, achados sistêmicos, antecedentes pessoais, acuidade visual com melhor correção, biomicroscopia e imagem retiniana multimodal (retinografia colorida, red-free, SD-OCT, OCTA e angiofluoresceinografia). Os critérios de inclusão foram a presença de alterações oftalmológicas ocorridas dentro de 30 dias após a primeira ou segunda dose de qualquer vacina contra COVID-19. Resultados: Onze pacientes foram incluídos: 5 com oclusão arterial (45,4%), 4 com oclusão venosa (36,4%) e 2 (18,2%) com alterações não específicas vasculares sugestivas de isquemia retiniana como exsudatos algodonosos. A idade média dos pacientes foi de 57 anos (DP=16; com intervalo de 27 a 84 anos). A média de tempo de aparecimento de sintomas após a vacinação foi de 10 dias (DP=5,4; com intervalo de 3 a 16 dias). Nove dos onze pacientes eram do sexo feminino (81,8%). Fatores de risco sistêmicos foram observados em 36,4% dos pacientes. Dois pacientes tiveram sintomas neurológicos e visuais, com oclusão arterial. 36,4% dos pacientes tiveram infecção prévia por COVID-19 no último ano. Sete pacientes (63,6%) receberam a vacina ChAdOx1 nCoV-19 (AZD1222). Conclusões: nossos dados sugerem que eventos retinianos temporalmente relacionados à vacinação contra COVID-19 são possíveis, porém raros. A relação entre estes eventos pós-vacinais exigem futura atenção antes de maiores conclusões.

ABSTRACT Purpose: The primary purpose of this study was to assess vascular retinal findings temporally related to COVID-19 vaccination. With greater information regarding all possible future adverse events, we hope to understand the real dimension and relevance of what was presented. Methods: Eleven patients with visual complaints after COVID-19 vaccination were enrolled. Data on the following were included: age, sex, vaccine, time of symptom onset, systemic findings, medical history, best-corrected visual acuity, and ocular findings by slit-lamp biomicroscopy as well as multimodal retinal imaging (color fundus, red-free photography, spectral-domain optical coherence tomography, optical coherence tomography angiography, and fluorescein-angiography). Inclusion criteria were the presence of ophthalmologic signs within 30 days after the first or second dose of any COVID-19 vaccine. Results: Of 11 patients, five had arterial occlusion (45.4%), four had venous occlusion (36.4%), and two (18.2%) had nonspecific vascular alterations suggestive of retinal ischemia such as cotton-wool spots. The mean age was 57 (SD = 16; range: 27-84) years. The mean time of symptoms onset was 10 (SD = 5.4; range: 3-16) days. Nine patients were female (81.8%). Systemic risk factors were observed in 36.4% of patients. Two patients had both neurological and visual symptoms, with arterial occlusion. Overall, 36.4% patients had COVID-19 in the previous year. Seven patients (63.6%) received ChAdOx1 nCoV-19 (AZD1222) vaccine. Conclusions: Our data suggest that retinal events temporally related to COVID-19 vaccination are possible but are very rare. The relationship of these events with post-COVID-19 vaccination warrants further attention to derive a meaningful conclusion.

https://doi.org/10.5935/0004-2749.20220071

Anticandidal Activity of Hydroalcoholic Extract of Phyllanthus niruri L. (Stone-Breaker)
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Maia, Flávia Camila

; Wijesinghe, Gayan Kanchana

; Barbosa, Janaína Priscila

; Feiria, Simone Nataly Busato de

; Oliveira, Thais Rossini

; Boni, Giovana Claudia

; Jóia, Felipe

; Cardoso, Vanessa da Silva

; Franco, Valéria Alessandra Prado Defávari

; Anibal, Paula Cristina

; Höfling, José Francisco

Brazilian Archives of Biology and Technology

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2022, Volume 65 elocation e22210539

Abstract: En | Text: En | PDF: En

Abstract Candida is becoming more resistant to conventional treatments, and causes persistent and severe infections. This study evaluates the antifungal and virulence activities of the hydroalcoholic extract of Phyllanthus niruri (HE-Pn) on Candida. HE-Pn was prepared by maceration technique. Chemical composition of HE-Pn was determined using Gas Chromatography-Mass Spectrometry (GS-MS). Antifungal screening was done using agar well diffusion. CLSI M27-A3 was used to determine the Minimum Inhibitory (MIC) and Fungicidal Concentrations (MFC). Effects of HE-Pn on adhesion and germ tube of C. albicans (ATCC MYA-2876) were determined using XTT assay and germ tube formation assay, respectively. Transmission Electron Microscopy (TEM) was performed to visualize the post-exposure cellular changes. HE-Pn cytotoxicity was determined using human keratinocyte cell line (HaCaT). Chlorhexidine digluconate (2 mg/mL) was used as the positive control. Linolenic acid ethyl ester was the most abundant chemical component of HE-Pn. All strains tested were sensitive to HE-Pn. MIC were 0.03 - 8 mg/mL and MFC were 0.5 - 64 mg/mL for all test strains. C. albicans (ATCC MYA-2876) showed 50% of adhesion reduction with > 4 mg/mL of HE-Pn and germ-tube formation was inhibited with 0.25 and 2 mg/mL. TEM exhibited cytoplasmic granulation, intracellular vacuoles, detachment of cell wall and plasma membrane and chromatin condensation of Candida. No toxicity of HE-Pn was noted on HaCaT cells. HE-Pn shows an anti-Candida activity and can be used as an inhibitory agent against adhesion and germ tube formation of Candida albicans (ATCC MYA-2876) without causing any toxicity to human cells.

https://doi.org/10.1590/1678-4324-2022210539

FLORAL BIOLOGY AND BEEKEEPING POTENTIAL OF Croton heliotropiifolius KUNTH (EUPHORBIACEAE) AT SEMI ARID REGION, BRAZIL1
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OLIVEIRA, VANDERLEI DA SILVA

; NASCIMENTO JÚNIOR, JOSÉ MONTEIRO DO

; BORGES, RICARDO LANDIM BORMANN DE

; LIMA, LUCIENE CRISTINA LIMA E

Revista Caatinga

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dec 2021, Volume 34 N. 4 Pages 895 - 903

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

RESUMO O presente estudo teve por objetivo determinar o potencial apícola de Croton heliotropiifolius Kunth, baseado na sua estratégia de floração, características florais, recursos florais ofertados, frequência e atividade de forrageamento de indivíduos de Apis mellifera L. às flores na Fazenda Ingazeira, Brasil. C heliotropiifolius possui flores díclinas e inconspícuas agrupadas em densas inflorescências terminais, em que cada indivíduo produz 560 ± 60 inflorescências, com 59 ± 12 flores pistiladas e 160 ± 26 flores estaminadas, tendo cada flor estaminada a capacidade de produzir aproximadamente 6 × 10 3 grãos de pólen. Embora ambas as flores produzam néctar ( 2 , 8 ± 0 , 8 e 0 , 3 ± 0 , 06 μL , nas flores pistiladas e estaminadas, respectivamente), os espécimes de A. mellifera concentraram suas visitas nas flores estaminadas (98%), com pico das visitações registrados entre 08:00-11:00 h. Foi estimado que nas atividades de forrageamentos, essa abelhas removem em média 405 grãos de pólen por visita em cada flor, desta forma, como um indivíduo da espécie estudada pode produzir aproximadamente 5 , 376 × 10 8 grãos de pólen, tal quantidade é suficiente para suportar até 33 ciclos de visitações de uma colônia de A. mellifera. Além disso, C. heliotropiifolius apresentou um padrão de floração anual, com altas produções de flores por cinco meses, manifestando estratégia de floração cornucópia, representando uma característica importante por favorecer na maior disponibilização de recursos florais nos ambientes. Portanto, esses dados demostram o grande potencial de C. heliotropiifolius para a apicultura na região.

ABSTRACT The aim of the present study was to determine the beekeeping potential of Croton heliotropiifolius Kunth (Euphorbiaceae) based on flowering strategy, floral characteristics, available floral resources, and the individuals frequencies and foraging activities of Apis mellifera L. on its flowers in Fazenda Ingazeira, Brazil. Each C. heliotropiifolius plant possessed inconspicuous diclinous flowers clustered into 560 ± 60 dense terminal inflorescences containing 59 ± 12 pistillate and 160 ± 26 staminate flowers. Although both types of flowers produced nectar (pistillate: 2.8 ± 0.8 μL ; staminate: 0.3 ± 0.06 μL ), A. mellifera workers mostly visited staminate flowers (98%) during the peak visitation period (08:00-11:00 h). Moreover, during the foraging period, each plant produced approximately 5.376 × 10 8 pollen grains, ensuring approximately 33 visitation cycles from a colony of A mellifera workers that picked up an average of 405 pollen grains per visit per flower. Further, C. heliotropiifolius showed an annual cornucopia flowering strategy with high flower production for five months, which is an important characteristic that ensures floral resource availability in the environment. These findings suggest that C. heliotropiifolius has a great potential for apiculture in this region.

https://doi.org/10.1590/1983-21252021v34n417rc 38 downloads

Atualização da Diretriz Brasileira de Hipercolesterolemia Familiar – 2021
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Izar, Maria Cristina de Oliveira

; Giraldez, Viviane Zorzanelli Rocha

; Bertolami, Adriana

; Santos Filho, Raul Dias dos

; Lottenberg, Ana Maria

; Assad, Marcelo Heitor Vieira

; Saraiva, José Francisco Kerr

; Chacra, Ana Paula M.

; Martinez, Tania L. R.

; Bahia, Luciana Ribeiro

; Fonseca, Francisco Antonio Helfenstein

; Faludi, Andre Arpad

; Sposito, Andrei C.

; Chagas, Antônio Carlos Palandri

; Jannes, Cinthia Elim

; Amaral, Cristiane Kovacs

; Araújo, Daniel Branco de

; Cintra, Dennys Esper

; Coutinho, Elaine dos Reis

; Cesena, Fernando

; Xavier, Hermes Toros

; Mota, Isabela Cardoso Pimentel

; Giuliano, Isabela de Carlos Back

; Faria Neto, José Rocha

; Kato, Juliana Tieko

; Bertolami, Marcelo Chiara

; Miname, Marcio Hiroshi

; Castelo, Maria Helane Costa Gurgel

; Lavrador, Maria Sílvia Ferrari

; Machado, Roberta Marcondes

; Souza, Patrícia Guedes de

; Alves, Renato Jorge

; Machado, Valeria Arruda

; Salgado Filho, Wilson

Arquivos Brasileiros de Cardiologia

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oct 2021, Volume 117 N. 4 Pages 782 - 844

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

https://doi.org/10.36660/abc.20210788 231 downloads

Antimicrobial properties of heterocyclic compounds against clinical mastitis isolates
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Acosta, Atzel C.

; Cardoso, Marcos V.O.

; Oliveira Filho, Gevanio B.

; Pinheiro Junior, José W.

; Leite, Ana Cristina L.

; Mota, Rinaldo A.

Pesquisa Veterinária Brasileira

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2021, Volume 41 elocation e06862

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

RESUMO: A mastite causa significativas perdas econômicas à indústria leiteira bovina. O presente estudo teve como objetivo avaliar as propriedades antibacterianas de 39 derivados heterocíclicos (1,3-tiazóis e 4-tiazolidinonas) contra isolados clínicos de mastite em vacas leiteiras. Amostras de leite foram coletadas de vacas com mastite clínica e as espécies bacterianas isoladas foram identificadas por PCR. A atividade antibacteriana foi avaliada pelo método de microdiluição em caldo. Primeiramente, os 39 compostos heterocíclicos foram testados contra quatro isolados bacterianos (Staphylococcus aureus, Streptococcus agalactiae, Corynebacterium bovis e Escherichia coli) escolhidos aleatoriamente dentre os recuperados das amostras de leite (Estudo 1). Posteriormente, compostos com atividade antibacteriana mais forte foram testados contra todos os isolados bacterianos recuperados das amostras de leite (Estudo 2). Os compostos 1,3-tiazóis apresentaram a maior atividade antibacteriana, principalmente os compostos 30 e 38, que também apresentaram propriedades bactericidas de acordo com seus valores de concentração inibitória mínima (CIM) e concentração bactericida mínima (CBM). Os isolados Corynebacterium spp. e Enterobacteriaceae foram os mais suscetíveis aos compostos 30 e 38. Os compostos 30 e 38 mostraram-se promissores como novos agentes antimicrobianos.

ABSTRACT: Mastitis causes significant economic losses to the dairy cattle industry. The present study aimed to evaluate the antibacterial properties of 39 heterocyclic derivatives (1,3-thiazoles and 4-thiazolidinones) against clinical mastitis isolates from dairy cows. Milk samples were collected from cows with clinical mastitis and the bacterial species were identified by PCR. Antibacterial activity was assessed using the broth microdilution method. First, 39 heterocyclic compounds were tested against four bacterial isolates (Staphylococcus aureus, Streptococcus agalactiae, Corynebacterium bovis and Escherichia coli) randomly chosen from those recovered from the milk samples (Study 1). Subsequently, the compounds with the strongest antibacterial activity were tested against all the bacterial isolates recovered from the milk samples (Study 2). 1,3-thiazoles showed the strongest antibacterial activity, specially compounds 30 and 38, which also showed bactericidal properties according to their minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) values. Corynebacterium spp. and Enterobacteriaceae isolates were the most susceptible to compounds 30 and 38. Compounds 30 and 38 are promising targets for new antimicrobial agents.

https://doi.org/10.1590/1678-5150-pvb-6862 26 downloads

Diversity of endophytic fungi in the leaflets and branches of Poincianella pyramidalis, an endemic species of Brazilian tropical dry forest
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Oliveira, Thays G. L.

; Bezerra, Jadson D. P.

; Silva, Iolanda R. da

; Souza-Motta, Cristina M.

; Magalhães, Oliane M. C.

Acta Botanica Brasilica

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dec 2020, Volume 34 N. 4 Pages 755 - 764

Abstract: En | Text: En | PDF: En

ABSTRACT Plants harbour diverse communities of fungal species in their internal compartments. Endophytic fungi help their hosts to establish, survive, and adapt to different environments. Here, we examined the diversity of endophytic fungi in the leaflets and branches of Poincianella pyramidalis, a plant species endemic to the Brazilian tropical dry forest (Caatinga). A total of 360 fragments of leaflets and branches were analysed and 189 endophytic fungi were isolated and distributed among 21 ascomycetous genera based on their ITS and LSU rDNA sequences. Diaporthe was the most frequently identified genus, followed by Didymella and Rhytidhysteron. The colonisation rate of plant fragments was higher in the branches (74 %) than in leaflets (14 %). The richness of the genera of endophytic fungi was also higher in the branches than in leaflets, whereas no difference was observed in endophyte diversity between the plant parts, based on Shannon-Wiener and Fisher alpha diversity indices. Our results indicate that endemic plant species from Brazilian dry forest, such as P. pyramidalis, are predominantly colonised by ascomycetous fungi, especially members of the class Dothideomycetes.

https://doi.org/10.1590/0102-33062020abb0253 457 downloads

10.

Non-marine invasive gastropods on Ilha Grande (Angra dos Reis, Rio de Janeiro, Brazil): distribution and implications for conservation
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Oliveira, Jaqueline L. de

; Miyahira, Igor C.

; Gonçalves, Isabela Cristina B.

; Ximenes, Renata F.

; Lacerda, Luiz Eduardo M. de

; Silva, Patrícia S. C. da

; Fonseca, Francielle C.

; Barbosa, Amilcar B.

; Nunes, Gleisse Kelly M.

; Santos, Sonia B. dos

Biota Neotropica

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2020, Volume 20 N. 3 elocation e20201060

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

Resumo As espécies invasoras são uma das maiores causas de perda de biodiversidade e o conhecimento acerca da sua distribuição é essencial para os esforços de conservação. O presente estudo inventariou os moluscos continentais invasores em 25 vilas da Ilha Grande (Rio de Janeiro, Brasil), uma ilha com remanescentes de Mata Atlântica. Três espécies invasoras foram encontradas: Melanoides tuberculata (Müller, 1774), Physa acuta Draparnaud, 1805, ambas em duas localidades; e Achatina fulica Bowdich, 1822, em 16 localidades. A maior parte dos registros foi no lado continental da ilha, provavelmente devido a facilidade de acesso. Um dos registros foi dentro de uma área de conservação, o que chama a atenção para a dispersão destas espécies na ilha, e seus possíveis efeitos.

Abstract Invasive species are one of the main causes of biodiversity loss and the knowledge of their distribution is essential for conservation efforts. The present study inventoried the land and freshwater invasive molluscs of 25 villages of Ilha Grande (Rio de Janeiro, Brazil), an island with Atlantic Rainforest remnants. Three invasive species are found: Melanoides tuberculata (Müller, 1774), Physa acuta Draparnaud, 1805, both on two localities; and Achatina fulica Bowdich, 1822, on 16 localities. Most records were done on the island continental side, in anthropic areas, probably due to ease of access. One record was inside a conservation area, that calls concern about the spread of those species on the island and possible effects.

https://doi.org/10.1590/1676-0611-bn-2020-1060 661 downloads

11.

Effects of Lippia sidoides Cham. (Verbenaceae) essential oils on the honey bees Apis mellifera (Apidae: Hymenoptera) foraging
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Pinheiro, Izabella M. C.

; S. Luz, João Henrique

; N. Souza, Luis Flávio

; S. Oliveira, Ana Cláudia S.

; Oliveira, Eugênio E.

; Aguiar, Raimundo Wagner S.

; Santos, Gil R.

; Ferreira, Talita P. S.

; A. C. Silveira-Tschoeke, Marcela Cristina

; Tschoeke, Paulo Henrique

Revista de Ciencias Agrícolas

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dec 2019, Volume 36 N. spe Pages 31 - 41

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

RESUMEN El uso de aceites esenciales de plantas há sido adoptado como menos peligroso para el medio ambiente y la salud humana que los insecticidas sintéticos utilizados para el control de insectos portadores de enfermedades. A pesar de ejercer actividades insecticidas contra varios insectos vectores de enfermedades, los impactos potenciales en los organismos no objetivo ejercidos por los aceites esenciales extraídos de Lippia sidoides (Cham.) no han recibido la atención adecuada. Evaluamos la susceptibilidad y los posibles cambios en las tasas de consumo de las abejas melíferas, Apis mellifera (L.), cuando se exponen a aceites esenciales extraídos de L. sidoides. Se expuso a las abejas recolectoras a jarabe de miel (50% v / v) que contenía aceite esencial de L. sidoides durante 5 h. Después de este período de exposición, las abejas recibieron jarabe de miel regular durante otro período de 19 h. Se utilizaron seis concentraciones de aceite essencial: 1.0, 1.5, 2.0, 2.5, 3.0 y 3.5 µL de aceite esencial / mL de jarabe, y se evaluó el consumo de jarabe y la mortalidad de las abejas en ambos períodos (5 y 24 h). Los resultados revelan que, independientemente de la concentración de aceite esencial, las abejas recolectoras se alimentaron significativamente menos de jarabe de miel que contenía aceite esencial de L. sidoides. Sin embargo, la alimentación con jarabe de miel que contiene aceites esenciales de L. sidoides no causó una mortalidad significativa en comparación con las abejas que no estuvieron expuestas a los aceites esenciales. Por lo tanto, los resultados demuestran que los aceites esenciales de L. sidoides exhibieron una selectividad adecuada contra las abejas melíferas.

ABSTRACT The use of plant essential oils has been adopted as less hazardous to the environment and human health than synthetic insecticides used for the control of insects that transmit diseases. Despite of exerting insecticidal activities against several insect disease vectors, the potential impacts on non-target organisms exerted by essential oils extracted from Lippia sidoides (Cham.) have not received adequate attention. Here, we evaluated the susceptibility and potential changes in consumption rates of honey bees, Apis mellifera (L.), when exposed to essential oils extracted from L. sidoides. Was exposed forager bees to honey syrup (50% v/v) containing L. sidoides essential oil for 5 h. After this exposure period, the bees received regular honey syrup for another 19 h period. Six essential oil concentrations was used, namely 1.0, 1.5, 2.0, 2.5, 3.0 and 3.5 µL of essential oil/mL of syrup, and evaluated the syrup consumption and bees mortality in both periods (at the 5th and 24th h). The results reveal that independent of the essential oil concentration, the forager bees fed significantly less on L. sidoides essential oil-containing honey syrup. However, feeding on L. sidoides essential oil-containing honey syrup did not cause significant mortality when compared with bees that were not exposed to the essential oils. Thus, the results demonstrate that L. sidoides essential oils exhibited adequate selectivity against honey bees.

https://doi.org/10.22267/rcia.1936e.104 345 downloads

12.

Performance of cryptococcal antigen lateral flow assay in serum, cerebrospinal fluid, whole blood, and urine in HIV-infected patients with culture-proven cryptococcal meningitis admitted at a Brazilian referral center
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Vidal, José E.

; Toniolo, Carolina

; Paulino, Adriana

; Colombo, Arnaldo L.

; Martins, Marilena dos Anjos

; Meira, Cristina da Silva

; Azevedo, Renata Guise Soares

; Pereira-Chioccola, Vera Lucia

; Gomes, Hélio Rodrigues

; Lazera, Marcia dos Santos

; Oliveira, Augusto C. Penalva de

; Boulware, David R.

Revista do Instituto de Medicina Tropical de São Paulo

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2018, Volume 60 elocation e1

Abstract: En | Text: En | PDF: En

ABSTRACT Cryptococcal meningitis is the most common cause of opportunistic meningitis in HIV-infected patients in Brazil and causes unacceptable high mortality rates. In this study, HIV-infected patients with a first episode of culture-proven cryptococcal meningitis in cerebrospinal fluid (CSF) were prospectively included in order to evaluate sensitivity of cryptococcal antigen (CrAg) lateral flow assay (LFA) in serum, CSF, whole blood (fingerstick), and fresh urine. In addition, HIV-infected patients with other neurological confirmed diseases were included in order to evaluate the specificity of CrAg LFA in serum. Twenty patients with cryptococcal meningitis were included and in 19 of them, CrAg LFA in CSF, serum, and whole blood were positive (95% sensitivity). In 18 patients, India ink test was positive in CSF (90% sensitivity), and in 16 cases, CrAg LFA was positive in urine (80% sensitivity). Thirty-six HIV-infected patients with other neurological diseases had negative results of CrAg LFA in serum (100% specificity). In conclusion, CrAg LFA in serum, CSF, and whole blood showed high sensitivity and specificity. Whole blood CrAg LFA seems to be a good and reliable strategy to improve AIDS-related cryptococcal meningitis diagnosis in Brazil.

https://doi.org/10.1590/s1678-9946201860001 2016 downloads

13.

Unusual presentation of oral actinomycosis in the tongue: case report
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Rocha, Ondina Karla M. S.

; França, Glória Maria de

; Oliveira, Patrícia T.

; Santos, Janaína L. M.

; Miguel, Márcia Cristina C.

; Silveira, Éricka Janine D.

Jornal Brasileiro de Patologia e Medicina Laboratorial

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oct 2017, Volume 53 N. 5 Pages 330 - 333

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

RESUMO A actinomicose é uma infecção rara causada pela bactéria do gênero Actinomyces, que pode acometer tanto tecidos moles como ósseo; pode estar associada a traumas ou infecções prévias. O presente trabalho tem o objetivo de relatar um caso clínico de actinomicose na borda lateral de língua originária de um trauma prévio com o uso de substância esclerosante para tratamento de malformação vascular. A paciente foi submetida ao debridamento de tecido necrótico na região, e o material, encaminhado para análise histopatológica, confirmando o diagnóstico de actinomicose. Após dois anos de acompanhamento, não se detectou recidiva.

ABSTRACT Actinomycosis is a rare infection caused by bacteria of Actinomyces genus that can affect both soft and bone tissues; it may be associated with trauma or previous infections. This paper aims to report a clinical case of actinomycosis on the lateral border of the tongue originating from a previous trauma with the use of sclerosing substance for treatment of vascular malformation. The patient underwent debridement of necrotic tissue in the region, and the material was sent for histopathological analysis, which confirmed the diagnosis of actinomycosis. After two years of follow-up, no recurrence was detected.

https://doi.org/10.5935/1676-2444.20170053 2756 downloads

14.

Antioxidant, analgesic and anti-inflammatory effects of lavender essential oil
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SILVA, GABRIELA L. DA

; LUFT, CAROLINA

; LUNARDELLI, ADROALDO

; AMARAL, ROBSON H.

; MELO, DENIZAR A. DA SILVA

; DONADIO, MÁRCIO V.F.

; NUNES, FERNANDA B.

; AZAMBUJA, MARCOS S. DE

; SANTANA, JOÃO C.

; MORAES, CRISTINA M.B.

; MELLO, RICARDO O.

; CASSEL, EDUARDO

; PEREIRA, MARCOS AURÉLIO DE ALMEIDA

; OLIVEIRA, JARBAS R. DE

Anais da Academia Brasileira de Ciências

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aug 2015, Volume 87 N. 2 Pages 1397 - 1408

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

Diversos estudos têm investigado as propriedades antinociceptivas, imunomoduladoras e anti-inflamatórias dos compostos encontrados no óleo essencial de lavanda (OEL), contudo, até o momento, ainda faltam dados mais substanciais. O objetivo deste estudo foi avaliar os efeitos antioxidantes, anti-inflamatórios e antinociceptivos do óleo essencial de lavanda. Para avaliação da atividade antioxidante foi realizado o ensaio de descoloração do radical 1,1-difenil-2-picrilhidrazil. A atividade anti-inflamatória foi testada utilizando dois modelos de inflamação aguda: indução de pleurisia por carragenina e edema de orelha induzido pela aplicação de óleo de cróton. A atividade antinociceptiva foi avaliada utilizando o modelo de dor provocada por formalina. OEL apresenta atividade antioxidante, sendo esta resposta dose-dependente. A resposta inflamatória provocada pela carragenina e pelo óleo de cróton foi reduzida com o pré-tratamento dos animais com OEL. No modelo de pleurisia, a droga usada como controle positivo, dexametasona, foi mais eficaz. Entretanto, no edema de orelha, o efeito antiedematogênico do óleo foi similar ao observado na dexametasona. No teste da formalina, o OEL inibiu consistentemente a nocicepção espontânea e apresentou efeito similar ao do tramadol. Os resultados deste estudo revelam a atividade (invivo) analgésica e anti-inflamatória do OEL, demonstrando seu importante potencial terapêutico.

Several studies have investigated the antinociceptive, immunomodulatory and anti-inflammatory properties of compounds found in the lavender essential oil (LEO), however to date, there is still lack of substantial data. The objective of this study was to assess the antioxidant, anti-inflammatory and antinociceptive effects of lavender essential oil. The 1,1-diphenyl-2-picrylhydrazyl radical decolorization assay was used for antioxidant activity evaluation. The anti-inflammatory activity was tested using two models of acute inflammation: carrageenan-induced pleurisy and croton oil-induced ear edema. The antinociceptive activity was tested using the pain model induced by formalin. LEO has antioxidant activity, which is dose-dependent response. The inflammatory response evoked by carrageenan and by croton oil was reduced through the pre-treatment of animals with LEO. In the pleurisy model, the drug used as positive control, dexamethasone, was more efficacious. However, in the ear swelling, the antiedematogenic effect of the oil was similar to that observed for dexamethasone. In the formalin test, LEO consistently inhibited spontaneous nociception and presented a similar effect to that of tramadol. The results of this study reveal (in vivo) the analgesic and anti-inflammatory activities of LEO and demonstrates its important therapeutic potential.

https://doi.org/10.1590/0001-3765201520150056 13665 downloads

15.

Randomized double-blind clinical trial of a new human epoetin versus a commercially available formula for anemia control in patients on hemodialysis
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Picon, Paulo D.

; Pribbernow, Suzane Cristina M.

; Prompt, Carlos A.

; Schacher, Suzana C.

; Antunes, Veronica V.H.

; Mentz, Bianca P.

; Oliveira, Fabiane L.

; Souza, Celia Mariana B. de

; Schacher, Fernando C.

Clinics

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aug 2014, Volume 69 N. 8 Pages 547 - 553

Abstract: En | Text: En | PDF: En

OBJECTIVES: Anemia is a common complication among chronic kidney disease patients on hemodialysis, occurring mostly due to erythropoietin deficiency. This randomized noninferiority trial sought to compare the efficacy and safety of a new epoetin formulation developed by Bio-Manguinhos, a biologics manufacturer affiliated with the Brazilian government, with those of a commercially available product currently used in Brazil (a biosimilar epoetin formulation). METHODS: The sample size needed to enable demonstration of noninferiority with a statistical power of 85% for a between-group difference in hemoglobin levels of no more than 1.5 g/dL was calculated. In total, 74 patients were randomly assigned to receive the epoetin formulation from Bio-Manguinhos (n = 36) or the biosimilar epoetin formulation (n = 38) in a double-blind fashion. The inclusion criteria were current epoetin therapy and stable hemoglobin levels for at least 3 months prior to the study. The primary and secondary outcomes were mean monthly hemoglobin levels and safety, respectively. The dose was calculated according to international criteria and adjusted monthly in both groups according to hemoglobin levels and at the assistant physicians' discretion. Iron storage was estimated at baseline and once monthly. Clinicaltrials.gov: NCT01184495. RESULTS: The study was conducted for 6 months after randomization. The mean baseline hemoglobin levels were 10.9±1.2 and 10.96±1.2 g/dL (p = 0.89) in the Bio-Manguinhos epoetin and biosimilar epoetin groups, respectively. During the study period, there was no significant change in hemoglobin levels in either group (p = 0.055, ANOVA). The epoetin from Bio-Manguinhos was slightly superior in the last 3 months of follow-up. The adverse event profiles of the two formulations were also similar. CONCLUSIONS: The epoetin formulations tested in this study are equivalent in efficacy and safety.

https://doi.org/10.6061/clinics/2014(08)08 1904 downloads

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