Now showing items 11-20 of 895
Antimicrobial activity of some medicinal plants of the Cerrado, Brazil
(Phytotherapy Research, 2008-05-01) [Artigo]
In order to determine the potential of Cerrado plants as sources of antimicrobial activity, the phytochemical screening of ethanol extracts from Virola surinamensis, Qualea grandiflora, Alchornea castaneifolia, Hancornia ...
Anti-hemorrhagic Activity of Four Brazilian Vegetable Species Against Bothrops jararaca Venom
(Molecules, 2009-03-01) [Artigo]
Around 20,000 snakebites are reported annually in Brazil and 90% of them are inflicted by species of the genus Bothrops. Intravenous administration of antibothropic antivenom neutralizes the systemic actions, but it is of ...
The anti-ulcerogenic effects of Curatella americana L.
(Journal of Ethnopharmacology, 2009-01-30) [Artigo]
Ethnopharmacological relevance: Curatella americana L. (Dilleneaceae) is a medicinal plant very frequently cited as acting against gastrointestinal disorders in ethnopharmacological inventories of the Cerrado region of ...
Gastric healing effect of methanolic and alkaloidic fraction from Strychnos pseudoquina
(Planta Medica, 2009-07-01) [Resumo]
Synthesis and evaluation of novel prenylated chalcone derivatives as anti-leishmanial and anti-trypanosomal compounds
(Bioorganic and Medicinal Chemistry Letters, 2015-08-15) [Artigo]
Chalcones form a class of compounds that belong to the flavonoid family and are widely distributed in plants. Their simple structure and the ease of preparation make chalcones attractive scaffolds for the synthesis of a ...
Phenylpropanoid glucosides from leaves of Coussarea hydrangeifolia (Rubiaceae)
(Phytochemistry, 2005-08-01) [Artigo]
Phenylpropanoid glycosides, 1 '-O-benzyl-alpha-(L)-rhamnopyranosyl-(1 ''-> 6 ')-beta-(D)-glucopyranoside (1) and alpha-(L)-Xylopyranosyl(4 '', 2 ')-(3-O-beta-(D)-glucopyranosyl)-1 '-O-E-caffeoyl-beta-(D)-glucopyranoside ...
Jatrowedione, a lathyrane diterpene from Jatropha weddelliana
(Phytochemistry, 1998-08-01) [Artigo]
3-Acetylaleuritolic acid, sitosterol and a novel lathyrane diterpene, jatrowedione, have been isolated from the roots of Jatropha weddelliana. The elucidation of the structure of the latter was accomplished by detailed NMR ...
Lignoids in seedlings of Virola sebifera
(Phytochemical Analysis, 2000-11-01) [Artigo]
Quantitative analysis carried out by high performance liquid chromatography indicated the accumulation of a major secondary compound in seedlings of Virola sebifera which was isolated and identified as the lignan ...
Bioprospecção de atividade antioxidante e antimicrobiana da casca de Stryphnodendron adstringens (Mart.) Coville (Leguminosae-Mimosoidae)
(Revista de Ciências Farmacêuticas Básica e Aplicada, 2007-12-01) [Artigo]
The aim of this work was to evaluate the class of secondary metabolites responsible for the antioxidant and antimicrobial activities of bark extracts of Stryphnodendron adstringens (Mart.) Coville (Leguminosae-Mimosoidae), ...
A new antifungal phenolic glycoside derivative and iridoids and lignans from Alibertia sessilis (Vell.) K. Schum. (Rubiaceae)
(Journal of the Brazilian Chemical Society, 2007-12-17) [Artigo]
A new antifungal phenolic glycoside, 3,4,5-trimethoxyphenyl-1-O-β-D- (5-O-syringoyl)-apiofuranosyl-(1→6)-β-D-glucopyranoside (1), together with four known iridoids, geniposidic acid (2), geniposide (3), 6α-hydroxygeniposide ...