Now showing items 1-10 of 19
Characterization and Quantification of the Compounds of the Ethanolic Extract from Caesalpinia ferrea Stem Bark and Evaluation of Their Mutagenic Activity
(Molecules, 2014-10-01) [Artigo]
Caesalpinia ferrea Martius has traditionally been used in Brazil for many medicinal purposes, such as the treatment of bronchitis, diabetes and wounds. Despite its use as a medicinal plant, there is still no data regarding ...
Characterization and Quantification of Compounds in the Hydroalcoholic Extract of the Leaves from Terminalia catappa Linn. (Combretaceae) and Their Mutagenic Activity
(Evidence-based Complementary and Alternative Medicine, 2014-01-01) [Artigo]
Terminalia is a genus of Combretaceous plants widely distributed in tropical and subtropical regions. Thus, the aim of this study was to quantify the majority compounds of the hydroalcoholic extract (7 : 3, v/v) of the ...
A 1H and 13C NMR study of a novel naturally occurring furocoumarin from Dorstenia cayapiaa
(Spectrochimica Acta Part A: Molecular Spectroscopy, 1992-10-01) [Artigo]
The chemical structure of a naturally occurring furocoumarin from Dorstenia cayapiaa (1) has been established by 1D and 2D NMR methods. © 1992.
In vitro cytotoxic activity of planifolin isolated from Paepalanthus planifolius (Eriocaulaceae) on murine mammary and lung adenocarcinoma cell lines
(Annual Review of Biomedical Sciences, 2005) [Artigo]
Chemical profile of the polar extract of Paepalanthus microphyllus (Guill.) Kunth (Eriocaulaceae)
(Revista Brasileira de Ciências Farmacêuticas, 2004-09-01) [Artigo]
Do extrato etanólico dos capítulos de Paepalanthus microphyllus, isolou-se um derivado do ácido cafeico (1). Sua estrutura foi caracterizada por métodos espectroscópicos (RMN mono e bi-dimensionais) e por espetrometria de ...
Mutagenicity of Flavonoids Assayed by Bacterial Reverse Mutation (Ames) Test
(Molecules, 2012-05-01) [Artigo]
The mutagenicity of ten flavonoids was assayed by the Ames test, in Salmonella typhimurium strains TA98, TA100 and TA102, with the aim of establishing hydroxylation pattern-mutagenicity relationship profiles. The compounds ...
Characterization of flavonoids and naphthopyranones in methanol extracts of Paepalanthus chiquitensis herzog by HPLC-ESI-IT-MSn and their mutagenic activity
(Molecules, 2013-01-01) [Artigo]
A HPLC-ESI-IT-MSn method, based on high-performance liquid chromatography coupled to electrospray negative ionization multistage ion trap mass spectrometry, was developed for rapid identification of 24 flavonoid and ...
Hymenaea stigonocarpa Mart. ex Hayne: A Brazilian medicinal plant with gastric and duodenal anti-ulcer and antidiarrheal effects in experimental rodent models
(Journal of Ethnopharmacology, 2012-08-30) [Artigo]
Ethnopharmacological relevance: Hymenaea stigonocarpa Mart. ex Hayne (Fabaceae) is a medicinal species commonly found in the Brazilian savannah. The stem bark of this medicinal plant, popularly known as jatoba-do-cerrado, ...
Mutagenicity and antimutagenicity of six Brazilian Byrsonima species assessed by the Ames test
(BMC Complementary and Alternative Medicine, 2014-06-05) [Artigo]
Background: In various regions of Brazil, several species of the genus Byrsonima (Malpighiaceae) are widely used to treat gastrointestinal complications. This genus has about 150 species of shrubs and trees distributed ...
Characterization of proanthocyanidins from Parkia biglobosa (Jacq.) G. Don. (Fabaceae) by flow injection analysis - Electrospray ionization ion trap tandem mass spectrometry and liquid chromatography/electrospray ionization mass spectrometry
(Molecules, 2013-03-01) [Artigo]
The present study investigates the chemical composition of the African plant Parkia biglobosa (Fabaceae) roots and barks by Liquid Chromatography - Electrospray Ionization and Direct Injection Tandem Mass Spectrometry ...