Now showing items 1-10 of 13
Antioxidant activity of Agaricus blazei
(Fitoterapia, 2007-04-01) [Artigo]
The ethanolic extract of Agaricus blazei and ethyl acetate and hydroalcoholic fractions were evaluated for their antioxidant activity. (C) 2007 Elsevier B.V. All rights reserved.
Tratamento crônico com extrato alcoólico de Pterogyne nitens não melhora parâmetros clássicos do diabetes experimental
(Revista Brasileira de Farmacognosia, 2009-06-01) [Artigo]
Tem sido atribuído ao flavonóide kaempferitrina e ao alcalóide galegina efeito hipoglicêmico. Folha de Pterogyne nitens, por conter tais compostos, poderia ser antidiabética. Assim, avaliamos o efeito do tratamento com ...
Alcohol extract of Pterogyne nitens leaves fails to reduce severity of streptozotocin-induced diabetes in rats
(Journal of Medicinal Plants Research, 2010-05-04) [Artigo]
Two constituents of Pterogyne nitens leaves, kaempferitrin, a diglycosylated flavonol, and galegin, a guanidine alkaloid, may be considered likely to exert an antidiabetic effect, on the basis of their chemical structures. ...
Correlation among Antioxidant, Antimicrobial, Hemolytic, and Antiproliferative Properties of Leiothrix spiralis Leaves Extract
(International Journal of Molecular Sciences, 2012-07-01) [Artigo]
The biological activities of a plant extract depend on a complex sum of individual properties including the antioxidant activity. Several biological activities protect against the harmful action of reactive oxygen species ...
Indole ring oxidation by activated leukocytes prevents the production of hypochlorous acid
(Brazilian Journal of Medical and Biological Research, 2005-11-01) [Artigo]
Hypochlorous acid (HOCl) released by activated leukocytes has been implicated in the tissue damage that characterizes chronic inflammatory diseases. In this investigation, 14 indole derivatives, including metabolites such ...
Profile of Maytenus aquifolium action over free radicals and reactive oxygen species
(Revista Brasileira de Ciencias Farmaceuticas/Brazilian Journal of Pharmaceutical Sciences, 2007-07-01) [Artigo]
Reactive oxygen species (ROS) and free radical species have been implicated in initiating, accompanying or causing many diseases in living organisms; there is thus, a continual need for antioxidants molecules to inactivate ...
Does cotinine act upon reactive oxygen species and peroxidases?
(Eclética Química, 2007-06-19) [Artigo]
Nicotine, an oxidizing agent, is certainly one of the most widely used alkaloids in the world. It is, together with its main metabolite, cotinine, responsible for tobacco-dependence. The use of tobacco is closely associated ...
Antioxidant activity of Maytenus ilicifolia root bark
(Fitoterapia, 2006-04-01) [Artigo]
Maytenus ilicifolia is an important plant with potential on cancer treatment and has been largely used in Brazil and other countries. We have evaluated the crude ethanolic extract of M. ilicifolia as a potential antioxidant ...
Salacia campestris root bark extract: peroxidase inhibition, antioxidant and antiradical profile
(Brazilian Journal of Pharmaceutical Sciences, 2009-01-01) [Artigo]
Reactive oxygen species (ROS) and free radical species have been implicated in initiating or accompanying many diseases in living organisms; there is thus, a continual need for antioxidants molecules to inactivate ROS/free ...
Flavonols from Pterogyne nitens and their evaluation as myeloperoxidase inhibitors
(Phytochemistry, 2008-05-01) [Artigo]
A myeloperoxidase inhibitory kaempferol derivative, namely pterogynoside (1), was isolated from fruits of Pterogyne nitens, along with six known flavonols, kaempferol, afzelin, kaempferitrin, quercetin, isoquercetrin and ...