Now showing items 1-10 of 62
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]
Cryptomoschatone D2 from Cryptocarya mandioccana: cytotoxicity against human cervical carcinoma cell lines
(Revista de Ciências Farmacêuticas Básica e Aplicada, 2009) [Artigo]
Among the substances isolated from Cryptocarya sp, some styrylpyrones, such as goniothalamin, demonstrate antiproliferative activity in a broad range of human cell lines. In the present study, we assessed the cytotoxicity ...
(1)H NMR Fingerprinting of Brazilian Commercial Gasoline: Pattern-Recognition Analyses for Origin Authentication Purposes
(Energy & Fuels, 2009-08-01) [Artigo]
In (his work, the combination of hydrogen nuclear magnetic resonance ((1)H NMR) fingerprinting of gasoline with pattern-recognition analyses provides an approach to distinguish Brazilian commercial gasoline, processed in ...
Flavonas, lignanas e terpeno de Piper umbellata (Piperaceae)
(Química Nova, 2009-01-01) [Artigo]
The phytochemical investigation of Piper umbellata leaves yielded nine compounds including one terpenoid glucoside, five flavones (vitexin 2-O-β-glucopyranoside, apigenin 8-C-β-D-glucopyranoside,orientin 8-C-β-D-glucopyr ...
Caracterização anatômica, química e antibacteriana de folhas de Brunfelsia uniflora (manacá) presentes na Mata Atlântica
(Revista Brasileira de Farmacognosia, 2009-03-01) [Artigo]
Brunfelsia uniflora é uma espécie pertencente à família Solanaceae conhecida popularmente como manacá e empregada em medicina popular, suas folhas são empregadas contra artrite, reumatismo, sífilis, picadas de cobra, febre ...
In vitro Trypanocidal Activity of Phenolic Derivatives from Peperomia obtusifolia
(Planta Medica, 2009-05-01) [Artigo]
The trypanocidal activity of crude extracts and fractions from the leaves and stems of Peperomia obtusifolia (Piperaceae) was evaluated in vitro against the epimastigote forms of Trypanosoma cruzi. Bioactivity-guided ...
Molecular physicochemical parameters predicting antioxidant activity of Brazilian natural products
(Revista Brasileira de Farmacognosia-brazilian Journal of Pharmacognosy, 2009-10-01) [Artigo]
Reactive oxygen species (ROS) are capable of oxidizing cellular proteins, nucleic acids and lipids, contributing to cellular aging, mutagenesis, carcinogenesis, coronary heart and neurodegenerative diseases. Free ...
Chemical Constituents of Aristolochia giberti
(Journal of the Brazilian Chemical Society, 2009-01-01) [Artigo]
Fourteen compounds were isolated from Aristolochia giberti. These included a new triterperne, (-)-onocera-8,8'-diol. In addition, 3-hydroxypropanoate, acetate, and formate were detected by NMR techniques, which suggests ...