Sulforhodamine B
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Copaifera multijuga, Copaifera pubiflora and Copaifera trapezifolia Oleoresins: Chemical Characterization and in vitro Cytotoxic Potential against Tumoral Cell Lines
Copaifera species (Fabaceae) comprises approximately 70 species of large trees, from which 16 can be found in Brazil. The oleoresins obtained from their trunk are widely used in Brazilian folk medicine, which display important antitumoral potential. Chemically, these oleoresins are mainly composed of a mixture of sesquiterpenes and diterpenes. In this paper
J. Braz. Chem. Soc.. Publicado em: 2020-08
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2. Biological activities of marine invertebrates extracts from the northeast brazilian coast
Resumo Este artigo reporta as atividades in vitro antiproliferativa, atiprotozoárica, anti-herpética e antimicrobiana de 32 extratos orgânicos provenientes de 14 esponjas marinhas e 14 corais coletados no litoral nordestino brasileiro. Os extratos etanólicos das esponjas Amphimedon compressa e Tedania ignis, e o extrato acetônico de Dysidea sp. demonstr
Braz. J. Biol.. Publicado em: 05/08/2019
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3. Antifungal, antibiofilm, and antiproliferative activities of Guapira graciliflora Mart
Abstract: The aim of this study was to evaluate in vitro the antifungal, antibiofilm and antiproliferative activities of the extract from the leaves of Guapira graciliflora Mart. The phytochemical characterization of the extract was performed using electrospray ionization mass spectrometry (ESI-MS). The antimicrobial activity of the extract and its fractions
Braz. oral res.. Publicado em: 24/05/2018
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4. Cytotoxic activity of phenolic constituents from Echinochloa crus-galli against four human cancer cell lines
Abstract Echinochloa crus-galli (L.) P. Beauv., Poaceae, grains are used as a feed for birds and millet for humans. The sulforhodamine B assay was used to assess its cytotoxicity against four human cancer cell lines. The ethanolic extract (70%) proved to be most active against HCT-116 and HELA cell lines (IC50 = 11.2 ± 0.11 and 12.0 ± 0.11 µg/ml, respecti
Rev. bras. farmacogn.. Publicado em: 2016-02
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5. Chemical Composition and Cytotoxic Activity of the Root Essential Oil from Jatropha ribifolia (Pohl) Baill (Euphorbiaceae)
The essential oil of roots of Jatropha ribifolia, obtained by hydrodistillation, was characterized in terms of its chemical composition by chromatographic method with flame ionization detection (GC-FID) and gas chromatography coupled to electron ionization mass spectrometry (GC-MS). The analyses and identification pointed by mass fragmentation pattern and re
J. Braz. Chem. Soc.. Publicado em: 2015-02
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6. Antiviral activity of fractions from leaves of Piper regnelli var. pallescens
This study investigated the antiviral potential of fractions and eupomatenoid-5 obtained from Piper regnelli (Miq.) C. DC., Piperaceae, leaves against bovine herpesvirus-1 (BHV-1) and poliovirus. VERO cell monolayers in 96-well cell culture plates were infected with BHV-1 or poliovirus and incubated in the presence and absence of samples for 48 h. The cells
Rev. bras. farmacogn.. Publicado em: 18/09/2012
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7. The cytotoxic and growth inhibitory effects of palladium(II) complexes on MDA-MB-435 cells
The antitumorigenic potential of two palladium(II) complexes, [Pd(ca2-o-phen)Cl2 ] - C1 and [Pd(dmba)(dppp)Cl] - C2, was evaluated, using MDA-MB-435 cells, a human breast adenocarcinoma cell-line that does not express the estrogen receptor α (ER-). Growth inhibition and induced alterations in cell-morphology were analyzed. The sulforhodamine B test showed t
Genetics and Molecular Biology. Publicado em: 03/02/2012
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8. Avaliação in vitro da atividade antiproliferativa de extratos das plantas Jodina rhombifolia HooK et Arn. e Carapa guianensis Aubl sobre células HL-60, Linfoma Daudi e Fibroblastos NIH-3T3 / In vitro anti-proliferative activity of extracts from Jodina rhombifolia HooK &Arn. and Carapa guianensis Aubl. on HL-60 cells, Daudi lymphoma and NIH-3T3 fibroblasts
Introduction-The incidence of cancer increases annually and is considered one of the main causes of mortality worldwide. Sixty-percent of chemotherapics were obtained from natural sources. Objective - this study aimed to assess the antiproliferative activity of extracts from leaves of Jodina rhombifolia Hook. Et Arn. (methanolic and watery) and seeds of Cara
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/07/2011
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9. Avaliação in vitro da atividade antineoplásica do ácido lecanórico e de seus produtos de modificação estrutural / Evaluation in vitro of antineoplasic activity of lecanoric acid and their products of estructural modification
Lichens are a symbiotic association of a fungus and one or more photosynthetic partners. Phenolic substances from lichens exhibit a wide range of biological actions, including antimicrobial, antineoplasic, and cytotoxic activities. The purpose of this study was evaluate in vitro the antineoplasic activity of orsellinates obtained from estructural modificatio
Publicado em: 2009
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10. Correlação entre os ensaios de citotoxicidade em Artemia salina Leach e atividade antineoplásica sobre linhagens de células tumorais para algumas classes de produtos naturais / Correlation between the citotoxicity assays in Artemia salina Leach and antineoplasic activity on tumoral cell lines for some natural products groups
The aim of this study was to correlate qualitative and quantitatively the lethal concentration needed for the citotoxic test on Artemia salina with the inhibitory concentration for the growth of tumoral cell lines using ten pure substances already known. Estimates for the year 2008 and also valid for the year 2009, in Brazil, show the occurrence of 466.730 n
Publicado em: 2009
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11. Cytotoxicity and antitumoral activity of dichloromethane extract and its fractions from Pothomorphe umbellata
The cytotoxicity of the dichloromethane crude extract (DCE), obtained from the aerial parts of Pothomorphe umbellata (L.) Miq (Piperaceae), was evaluated against nine human cancer cell lines (MCF-7, NCI-ADR/RES, OVCAR-3, PC-3, HT-29, NCI-H460, 786-O, UACC-62, K-562). The DCE presented antiproliferative activity with good potency against all cell lines at low
Brazilian Journal of Medical and Biological Research. Publicado em: 2008-05
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12. Atividade antimutagênica e citotóxica da β-glicana de Agaricus brasiliensis dependente da MAPK p38
Muitos estudos têm demonstrado que extratos de Agaricus brasiliensis têm atividade citotóxica e antimutagênica, estes efeitos foram relacionados à β-glicana, um polissacarídeo constituinte de parede celular presente em um grande numero de organismos. No entanto, os mecanismos pelos quais este composto atua ainda não foram elucidados. O propósito des
Publicado em: 2008