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Pesquisa : B01.750.600.725 [Categoria DeCS]
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Id: biblio-1055400
Autor: Baleta, Francis Nuestro; Bolaños, Jonathan Mallillin.
Título: Growth and Immune Response of Pangasius hypophthalmus Fed Diets Containing Seaweed Extracts as Immunostimulant
Fonte: Braz. arch. biol. technol;62:e19180083, 2019. tab, graf.
Idioma: en.
Resumo: Abstract Growth and immune response of Pangasius hypophthalmus were evaluated after feeding the fish with diets containing hot-water extracts (HWE) of Sargassum oligocystum as immunostimulant at 100, 300, and 500 mg kg-1 diet. Basal diet for P. hypophthalmus served as the control. The experimental diets were administered for 12 weeks. At the end of the feeding experiment, growth and haematological profile of fish were evaluated. Result showed that final weight, weight gain, daily growth rate and feed conversion ratio were significantly increased in the fish that received 300 and 500 mg kg-1 HWE of S. oligocystum. Evaluation of the haematological profile showed that white blood cells red blood cells, hemoglobin, hematocrit and platelet of P. hypophthalmus that received the HWE of S. oligocystum were significantly higher than the control group. Overall, our results indicate that the use of S. oligocystum HWE improves growth and haematological profile in P. hypophthalmus.
Descritores: Adjuvantes Imunológicos
Sargassum
Peixes/crescimento & desenvolvimento
Imunidade
Responsável: BR1.1 - BIREME


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Id: biblio-1135509
Autor: Tajrin, Andi; Chandha, Muh Hendra; Mappangara, Surijana; Ruslin, Muhammad; Samad, Rasmidar; Akbar, Fuad Husain.
Título: Analysis of the Total Level of Flavonoids in the Brown Algae ( Phaeophyceae ) Extract as Analgesic and Anti-Inflammatory Drugs
Fonte: Pesqui. bras. odontopediatria clín. integr;20:e4733, 2020. tab, graf.
Idioma: en.
Resumo: Abstract Objective: To determine the total level of flavonoids in brown algae extract Padina sp., Sargassum sp., and Turbinaria sp., which could serve as an analgesic and anti-inflammatory drug. Material and Methods: This is an experimental study with a one-shot case study research design. The study sample consisted of three species of brown algae, namely, Padina sp., Sargassum sp., and Turbinaria sp. The study samples were obtained from Saugi Island, Pangkep, Regency. The sampling method used was convenience sampling. The total flavonoid level in the three extracts of brown algae samples was determined at three concentrations (150 ppm, 300 ppm, and 450 ppm) with three replicates. The analysis used a colorimetric method, a spectrophotometer and aluminium chloride as the reagent. Results: The total level of flavonoids in Padina sp. was the highest at 0.894 ± 0.027%, compared to the levels of 0.786 ± 0.075% in Sargassum sp. and 0.745 ± 0.016% in Turbinaria sp. Conclusion: Padina sp. had the highest total flavonoid levels compared to Sargassum sp. and Turbinaria sp. Flavonoid compounds from brown algae have the potential to be used as analgesic and anti-inflammatory drugs.
Descritores: Alga Marinha
Flavonoides
Feófitas
Compostos Fitoquímicos
Anti-Inflamatórios/uso terapêutico
-Projetos de Pesquisa
Preparações Farmacêuticas
Espectrofotômetros/métodos
Epidemiologia Experimental
Estatísticas não Paramétricas
Sargassum
Indonésia/epidemiologia
Responsável: BR1264.1 - Biblioteca Setorial Prof Alberto M Campos


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Id: biblio-1001564
Autor: Moni, Sivakumar Sivagurunathan; Alam, Mohammad Firoz; Safhi, M M; Jabeen, Aamena; Sanobar, Syeda; Siddiqui, Rahimullah; Moochikkal, Remesh.
Título: Potency of nano-antibacterial formulation from Sargassum binderi against selected human pathogenic bacteria
Fonte: Braz. J. Pharm. Sci. (Online);54(4):e17811, 2018. tab, graf, ilus.
Idioma: en.
Resumo: Seaweeds constitutes an abundant marine reserve that can be harnessed as source of new pharmaceutical agents. Sargassum binderi Sonder ex J. Agardh is a brown seaweed that is predominantly available from December to March in the Red Sea, Jazan, Kingdom of Saudi Arabia (KSA). In this study, three extracts were isolated using three different techniques, and were subjected to antibacterial assay. The petroleum ether extract of Sargassum binderi was more effective against selected human pathogenic bacteria than the other extracts. Therefore, further studies were focused on developing oleic acid vesicles entrapped with the petroleum ether extract of Sargassum binderi, with the aim of enhancing its penetration property. Oleic acid vesicles were prepared by entrapping petroleum ether extract of Sargassum binderi using film hydration technique. The formulated vesicles were in nanoscale, and so were termed phyto-nanovesicles (PNVs). The spectrum of antibacterial activity of PNVs showed that it is a promising formulation against S. aureus, S. pyogenes, B. subtilis, E. coli, K. pneumoniae and P. aeruginosa. The microbial sensitivities to the PNVs was in the order E.coli > B. subtilis > S. aureus > S. pyogenes > K. pneumoniae > P. aeruginosa. Thus, the PNV formulation possesses promising and effective antimicrobial potential against human pathogenic bacteria
Descritores: Oceano Índico/etnologia
Sargassum/metabolismo
-Alga Marinha/classificação
Antibacterianos
Responsável: BR40.1 - DBD - Divisão de Biblioteca e Documentacão do Conjunto das Químicas


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Id: lil-623841
Autor: Albuquerque, Elaine Figueiredo; Guéron, Cordélia de Oliveira Castro.
Título: Variação sazonal da fauna vágil de Sargassum stenophyllum (Martens) em duas estações com diferentes graus de exposicäo às ondas, em Ibicuí, Baía de Sepetiba, estado do Rio de Janeiro, Brasil / Seasonal variation of the vagile fauna of Sargassum stenophyllum (Martens) at two stations with different intensity of wave exposure in Ibicuí, Rio de Janerio State, Brazil
Fonte: Mem. Inst. Oswaldo Cruz;84(supl.4):9-17, 1989. mapas, tab, graf.
Idioma: pt.
Resumo: The seasonal variation of the vagile fauna associated to Sargassum stenophyllum was analyzed from March/1986 to February/1987. The samples were obtained at two stations with differents intensity of wave exposures. Hight density of nematods and amphipods were observed during all of sampling period. Gammarids seems to be more dominant on the exposure site, while nematods, polychaetes and mollusks do on the sheltered one.
Descritores: Estações do Ano
Sargassum/microbiologia
Metronidazol
-Brasil
Limites: Humanos
Responsável: BR1.1 - BIREME


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Id: lil-755884
Autor: Sujatha, D; Singh, Kiranpal; Vohra, Mursalin; Kumar, K. Vijay; Sunitha, S.
Título: Antilithiatic Activity of phlorotannin rich extract of Sarghassum Wightii on Calcium Oxalate Urolithiais ­ In Vitro and In VivoEvaluation
Fonte: Int. braz. j. urol;41(3):511-520, May-June 2015. tab, ilus.
Idioma: en.
Resumo: ABSTRACTPurpose:

Urolithiasis is a common urological disorder responsible for serious human affliction and cost to the society with a high recurrence rate. The aim of the present study was to systematically evaluate the phlorotannin rich extract of Sargassum wightii using suitable in vitro and in vivo models to provide scientific evidence for its antilithiatic activity.

Materials and Methods:

To explore the effect of Sargassum wightii on calcium oxalate crystallization, in vitro assays like crystal nucleation, aggregation and crystal growth were performed. Calcium oxalate urolithiasis was induced in male Sprague dawley rats using a combination of gentamicin and calculi producing diet (5% ammonium oxalate and rat pellet feed). The biochemical parameters like calcium, oxalate, magnesium, phosphate, sodium and potassium were evaluated in urine, serum and kidney homogenates. Histopathological studies were also done to confirm the biochemical findings.

Results:

The yield of Sargassum wightii extract was found to be 74.5 gm/kg and confirmed by quantitative analysis. In vitro experiments with Sargassum wightii showed concentration dependent inhibition of calcium oxalate nucleation, aggregation and growth supported by SEM analysis. In the in vivo model, Sargassum wightiireduced both calcium and oxalate supersaturation in urine, serum and deposition in the kidney. The biochemical results were supported by histopathological studies.

Conclusion:

The findings of the present study suggest that Sargassum wightii has the ability to prevent nucleation, aggregation and growth of calcium oxalate crystals. Sargassum wightii has better preventive effect on calcium oxalate stone formation indicating its strong ...

Descritores: Oxalato de Cálcio/antagonistas & inibidores
Extratos Vegetais/farmacologia
Sargassum/química
Taninos/farmacologia
Urolitíase/prevenção & controle
-Oxalato de Cálcio/química
Cálcio/análise
Cristalização
Rim/efeitos dos fármacos
Magnésio/análise
Modelos Animais
Oxalatos/análise
Fósforo/análise
Distribuição Aleatória
Ratos Sprague-Dawley
Valores de Referência
Reprodutibilidade dos Testes
Fatores de Tempo
Resultado do Tratamento
Limites: Animais
Masculino
Tipo de Publ: Estudo de Avaliação
Responsável: BR1.1 - BIREME


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Texto completo SciELO Chile
Costa, Antonio Carlos Augusto da
Texto completo
Id: lil-640515
Autor: Henriques, Cristiane Assumpção; Costa, Antonio Carlos Augusto da; Reis, Marcelo Martins dos; Costa, André Luiz Hemerly; Luna, Aderval Severino.
Título: Batch and fixed-bed column biosorption of manganese ion by sargassum filipendula
Fonte: Electron. j. biotechnol;14(5):8-8, Sept. 2011. ilus, tab.
Idioma: en.
Resumo: This paper presents experimental data of the biosorption of manganese onto Sargassum filipendula in both batch and fixed-bed column systems. Batch equilibrium data were used for nonlinear fittings of the Langmuir and Freundlich isotherms. A mathematical model based on mass balances in the fluid and in the sorbent was applied to represent the experimental fixed-bed column data. The utilization of isotherm parameters from the batch experiments in the breakthrough model implied a significant mismatch in relation to the laboratory data. Alternatively, additional fixed-bed column data provided new parameters for the isotherm evaluation, and the corresponding simulated profile of the breakthrough curve reached better agreement to the experimental results.
Descritores: Manganês/metabolismo
Sargassum/metabolismo
Sargassum/química
Eliminação de Resíduos Líquidos
-Adsorção
Metais Pesados
Temperatura
Águas Residuárias
Responsável: CL1.1 - Biblioteca Central


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Texto completo SciELO Costa Rica
Texto completo
Id: lil-637762
Autor: Marín, Alejandro; Casas-Valdez, Margarita; Carrillo, Silvia; Hernández, Hugo; Monroy, Alberto; Sanginés, Leonor; Pérez-Gil, Fernando.
Título: The marine algae Sargassum spp. (Sargassaceae) as feed for sheep in tropical and subtropical regions
Fonte: Rev. biol. trop;57(4):1271-1281, dic. 2009. graf, tab.
Idioma: en.
Resumo: The objective of this study was to evaluate Sargassum meal as feed for sheep through the measures of in vivo digestibility, dry matter degradability, pH, ammonia and volatile fatty acids in rumen. The Sargassum algae used in this experiment were collected at the end of spring, when they are more abundant, bigger, and have completed their reproductive cycle. Four tons (wet weigth) were collected manually from the intertidal zone of La Paz bay, Baja California Sur, Mexico. These algae were sun-dried and ground in a hammer mill to obtain the Sargassum meal. Four fistulated Pelibuey sheep, were fed daily with diets containing the marine algae (MA) at different levels (0, 10, 20 and 30 %), using a 4 x 4 Latin-square design experiment. Feed intake was not affected (p>0.05). Water consumption and urine excretion increased with MA (p<0.05; r²=0.54 and r²=0.74, respectively). In all treatments dry matter digestibility was of 74%-79%, and crude protein digestibility was of 85%-88%. Acid detergent fiber (59%-65%) and neutral detergent fiber (55%-66%) digestibility were greater in all treatments with MA. Ruminal pH was greater in all groups fed with MA (p<0.05). Ammonium concentration was not influenced (p>0.05) by MA. Ruminal volatile fatty acids decreased in all MA groups (p<0.05). The marine algae Sargassum spp. can be used as a feed supplement for sheep, especially in tropical and subtropical regions where these marine algae are available. Rev. Biol. Trop. 57 (4): 1271-1281. Epub 2009 December 01.

El objetivo de este estudio fue evaluar la harina del alga marina Sargassum como alimento para ovejas, midiendo la digestibilidad in vivo, la degradabilidad de la materia seca, así como el pH y los ácidos grasos volátiles en rumen. El alga Sargassum utilizada en este experimento, fue recolectada a finales de la primavera, cuando esta alga es más abundante, alcanza su mayor talla y ha completado su ciclo reproductivo. Se recolectaron manualmente, cuatro toneladas (peso húmedo) de la zona intermareal en la Bahía de La Paz, Baja California Sur, México. Estas algas fueron secadas directamente al sol y molidas en un molino de martillos, para obtener la harina. Se utilizaron cuatro borregos Pelibuey fistulados, distribuidos en un arreglo factorial de 4 x 4. Los animales fueron alimentados diariamente con dietas que contenían el alga marina (AM) Sargassum a diferentes niveles (0, 10, 20 y 30%). El consumo de alimento no se vio afectado con la inclusión del alga (p> 0.05). El consumo de agua y la excreción de orina se incrementaron conforme aumentó la concentración de AM en las dietas (p<0.05; r²=0.54 and r²=0.74, respectivamente). En todos los tratamientos la digestibilidad de la materia seca fue de 74% a 79%, la digestibilidad de la proteína cruda fue de 85% a 88%. La digestibilidad de la fibra ácido detergente (59%-65%) y de la neutro detergente (55%-66%) fue mayor en todos los tratamientos con AM, lo mismo ocurrió con el pH en rumen (p<0.05). La concentración de amonio en rumen no se vio afectada por AM (p>0.05). La concentración de ácidos grasos volátiles se redujo en todos los tratamientos con AM (p<0.05). El alga marina Sargassum spp. puede ser usada como complemento alimenticio para ovejas, especialmente en las regiones tropicales y subtropicales donde está disponible.
Descritores: Ração Animal/análise
Sargassum/química
-Amônia/análise
Digestão/fisiologia
Ácidos Graxos Voláteis/análise
Concentração de Íons de Hidrogênio
Ovinos
Clima Tropical
Limites: Animais
Tipo de Publ: Estudo de Avaliação
Research Support, Non-U.S. Gov't
Responsável: CR1.1 - BINASSS - Biblioteca Nacional de Salud y Seguridad Social


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Texto completo SciELO Costa Rica
Texto completo
Id: lil-484698
Autor: Casas-Valdez, M; Hernández-Contreras, H; Marín-Álvarez, A; Aguila-Ramírez, R. N; Hernández-Guerrero, C. J; Sánchez-Rodríguez, I; Carrillo-Domínguez, S.
Título: El alga marina Sargassum (Sargassaceae): una alternativa tropical para la alimentación de ganado caprino / The seaweed Sargassum (Sargassaceae) as tropical alternative for goats' feeding
Fonte: Rev. biol. trop;54(1):83-92, mar. 2006. tab, graf.
Idioma: es.
Resumo: The nutritive value of seaweed (Sargassum spp.) was studied in Baja California Sur, Mexico. Twenty female Nubian goats (43-weeks old) were randomly distributed into two groups of 10 goats each and were housed in individual pens. One group was fed with a control diet and the other with a diet supplemented with 25% of Sargassum spp. Feed and water intake were recorded daily and individually for 60 days. The weight of each goat was recorded every 15 days. The nutritional content of Sargassum spp. was 89% dry mater, 8% crude protein, 31% ash, 2% ether extract, and 39% carbohydrates. Fiber fractions, minerals, vitamins, fatty acids, and antinutritional factors were also determined. There were no significant differences in body weight (8.6 kg control and 9 kg experimental), feed intake (1.3 kg control and 1.6 kg experimental), and feed conversion rate (11.1 control and 12.6 experimental). Water consumption was greater in the goats that ate the Sargassum diet (5.3 l). From these results,Sargassum spp.can be considered as an alternative feedstuff for goats.

Se estudió el valor nutricional de varias algas del género Sargassum. Veinte cabras hembras (Nubia) en crecimiento (43 semanas)se distribuyeron aleatoriamente en dos grupos de 10 cabras y se alojaron en corraletas individuales. Un grupo fue alimentado con una dieta testigo elaborada con insumos regionales y el otro con una dieta que incluyó el 25% de Sargassum spp. Durante 60 días se midieron diariamente y en forma individual, el alimento y agua consumidos, el peso corporal se cuantificó cada 15 días. La composición química proximal de Sargassum fue de: 89% materia seca, 7.7% proteína, 31% cenizas, 2% extracto etéreo y 39% de carbohidratos. También se determinaron las fracciones de fibra, minerales, vitaminas, ácidos grasos y factores antinutricios. No se encontraron diferencias significativas en el peso corporal (8.6 kg grupo control y 9 kg experimental), alimento consumido (1.31 kg grupo control y 1.6 experimental)y tasa de conversión alimenticia (11.1 grupo control y 12.6 experimental) entre los tratamientos. El consumo de agua fue mayor en el grupo alimentado con la dieta que incluyó Sargassum spp (5.1 l). De los resultados se deduce que las algas marinas de este género pueden ser utilizadas como un forraje alternativo de mediana calidad para el ganado caprino.
Descritores: Ração Animal/análise
Cabras
Sargassum/química
-Valor Nutritivo
Limites: Animais
Feminino
Responsável: BR1.1 - BIREME


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Id: lil-459993
Autor: Leite, F. P. P; Tanaka, M. O; Gebara, R. S.
Título: Structural variation in the brown alga Sargassum cymosum and its effects on associated amphipod assemblages
Fonte: Braz. j. biol;67(2):215-221, May 2007. ilus, graf, tab.
Idioma: en.
Projeto: CNPq; . UNICAMP. FAEP; . FAPESP.
Resumo: The presence of diverse biological substrates adds complexity to coastal landscapes and increases the number of ecological niches that can be used by the mobile epifauna. Studies on the influence of structural complexity have focused mainly on algal host species, but there is little information about the influence of intraspecific structural variation on the associated mobile epifauna. In this work, we examined whether intraspecific variation in the brown alga Sargassum cymosum influenced the structure of amphipod assemblages on two shores with different wave exposure. At least 15 fronds were randomly sampled at Fortaleza and Perequê-Mirim beaches, on the Atlantic coast of São Paulo state, southeastern Brazil, and 12 variables were measured for each alga. The amphipods were identified and counted. The greatest structural variation in S. cymosum occurred within shores, whereas the differences between shores were mainly related to algal size. These characteristics influenced amphipod assemblages differently on each shore, with the greatest effects being associated with variables related to morphological complexity, such as holdfast size, the number and size of branches, and the extent of cover by sessile colonial animals. These findings show that monospecific algal banks are not homogeneous, and that morphological differences and interactions with other biological substrates can influence the mobile epifaunal assemblages.

A presença de substratos biológicos aumenta a complexidade dos ambientes costeiros, proporcionando maior número de nichos ecológicos para a epifauna vágil. Estudos sobre os efeitos da complexidade estrutural das algas têm enfocado principalmente as espécies presentes entre os seus ramos, porém há poucos dados sobre a influência da variação estrutural intra-específica sobre essa fauna. Neste trabalho, foi analisada a influência da variação da alga parda Sargassum cymosum sobre a estrutura da assembléia de anfípodes entre duas praias com diferentes graus de exposição às ondas, e em cada uma delas, no SE do Brasil. Pelo menos 15 frondes foram individualmente coletadas aleatoriamente nos costões das praias de Fortaleza e Perequê-Mirim, e diversas variáveis (12) foram medidas para cada fronde de alga. Os anfípodes foram identificados e contados. As maiores variações nas características de S. cymosum foram obtidas em cada praia, enquanto que diferenças entre as praias foram principalmente relacionadas ao tamanho das algas. Estas características influenciaram as assembléias de anfípodes de maneira diferente em cada praia, sendo que os maiores efeitos foram atribuídos a variáveis relacionadas com a morfologia das algas como o tamanho do apressório, o número e tamanho dos ramos e a cobertura por organismos coloniais sésseis. Portanto, bancos monoespecíficos de algas não são homogêneos e tanto as diferenças morfológicas como as interações com outros substratos biológicos podem influenciar as assembléias da epifauna vágil.
Descritores: Anfípodes/fisiologia
Sargassum/crescimento & desenvolvimento
-Anfípodes/classificação
Brasil
Densidade Demográfica
Dinâmica Populacional
Análise de Componente Principal
Limites: Animais
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: BR1.1 - BIREME



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