Now showing items 1-10 of 78
Intermediate reactive oxygen and nitrogen from macrophages induced by Brazilian lichens
(Fitoterapia, 2004-07-01) [Artigo]
The activity of ten compounds isolated from Brazilian lichen over the release of hydrogen peroxide and nitric oxide was evaluated in the culture of peritoneal macrophage cells from mice. Salazinic, secalonic A and ...
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.
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 ...
CCR5 genotype and plasma ß-chemokine concentration of Brazilian HIV-infected individuals
(Brazilian Journal of Medical and Biological Research, 2002-11-01) [Artigo]
The 32-bp deletion in the HIV-1 co-receptor CCR5 confers a high degree of resistance to HIV-1 infection in homozygous individuals for the deleted allele and partial protection against HIV-1 during disease progression in ...
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 ...
Ação do extrato metanólico e etanólico de Davilla elliptica St. Hill. (Malpighiaceae) na resposta imune
(Revista Brasileira de Farmacognosia, 2005-03-01) [Artigo]
Plantas têm contribuído no tratamento da maioria das doenças. Considerando a importância terapêutica das plantas medicinais, foi avaliada a atividade imunológica dos extratos metanólico e etanólico de Davilla elliptica. ...
Immunostimulatory effects of the phenolic compounds from lichens on nitric oxide and hydrogen peroxide production
(Brazilian Journal of Pharmacognosy, 2009-10-01) [Artigo]
The effects of isolated compounds from Brazilian lichens and their derivatives on H 2O 2 and NO production were studied using murine macrophages as a part of an attempt to understand their possible immunomodulatory properties. ...
New antifungal terpenoid glycosides from Alibertia edulis (Rubiaceae)
(Helvetica Chimica Acta, 2008-01-01) [Artigo]
Phytochemical investigation from the stems of Alibertia edulis led to the isolation and identification of a new iridoid 6 beta-hydroxy-7-epigardoside methyl ester (1) and a new saponin 3 beta-O-[alpha-L-rhamnopyranosyl-(1 ...
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 ...
Alchornea glandulosa Ethyl Acetate Fraction Exhibits Antiangiogenic Activity: Preliminary Findings from In Vitro Assays Using Human Umbilical Vein Endothelial Cells
(Journal of Medicinal Food, 2011-10-01) [Artigo]
Alchornea glandulosa has traditionally been used in Brazilian folk medicine for the treatment of immune-inflammatory diseases and as an antiulcer agent to heal gastric ulcer and gastritis. Angiogenesis is a complex multistep ...