Results 241 to 250 of about 4,146,519 (301)
Free radical scavenging activity of Lafoensia pacari
Journal of Ethnopharmacology, 2000 The methanolic extract of the stem bark of Lafoensia pacari (Lythraceae) showed free radical scavenging activity in the diphenyl picryl hydrazyl radical (DPPH) decoloration assay and inhibited the enzyme xanthine oxidase 'in vitro'. Bioassay-guided isolation led to ellagic acid (EA) as the main active compound of Brazilian and Paraguayan collections of
Solon, S. +3 more
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Free Radical Scavenging and Cellular Antioxidant Properties of Astaxanthin
International Journal of Molecular Sciences, 2016 Astaxanthin is a coloring agent which is used as a feed additive in aquaculture nutrition. Recently, potential health benefits of astaxanthin have been discussed which may be partly related to its free radical scavenging and antioxidant properties.
Shigetoshi Okazaki +2 more
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Polydopamine free radical scavengers
Biomaterials Science, 2020This feature article summarizes the recent progress, challenges and future directions of free radical scavengers based on polydopamine, including the integrated mechanism, current regulating strategies, and kinds of biomedical applications.
Junfei Hu +5 more
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Allantoin as a Free-Radical Scavenger
Doklady Biochemistry and Biophysics, 2002In vertebrates, free purine bases are deaminated mainly to hypoxantine (Ia) or xantine (Ib), which are further oxidized to uric acid (Ic) in the presence of oxygen. Its further conversion (Ic to If) is shown in the following scheme:
E P, Gus'kov +7 more
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Modulation of platelet function by free radicals and free-radical scavengers
Trends in Pharmacological Sciences, 1993Platelets have the capacity to generate oxygen-derived free radicals and are often present at inflammatory foci with other free-radical-generating cells such as white blood cells. Free radicals can modify platelet adhesion and aggregation directly or through effects on the vascular endothelium, which generates prostacyclin and nitric oxide.
D, Salvemini, R, Botting
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Gliclazide: a general free radical scavenger
European Journal of Pharmacology: Molecular Pharmacology, 1991Free radical mechanisms have been implicated in diabetic microangiopathy. Agents that scavenge free radicals may be beneficial. We assessed the scavenging ability of two sulphonylureas, gliclazide and glibenclamide, in vitro. The assay which employs o-dianisidine sensitised by riboflavin can be used to distinguish between superoxide scavengers and ...
Scott, Norma A. +3 more
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Food Chemistry, 2006 Three commercial extracts of grape phenols (seeds, skin, whole) were used in this study. Each extract was divided by HPLC into five fractions of different polarities, and their free radical-scavenging activities were measured using the DPD (N,N-diethyl-p-
Monique Lacroix, Stéphane Salmieri
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Free radical‐scavenging properties of lignin
Nutrition and Cancer, 1998Lignin is one of the major components of dietary fiber. It is a complex hydrophobic molecule that typically occurs in cell walls with heteroxylans. Our experimental data show that lignin is a free radical scavenger. When the NADH-phenazine methosulfate-nitro blue tetrazolium free radical-producing system is used, an alkali-lignin concentration of 46.29
F J, Lu, L H, Chu, R J, Gau
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Free Radicals and Their Scavengers in Parkinson’s Disease
European Neurology, 2008In recent years, it has been shown that active oxygen species or free radicals are closely involved in various diseases. Accumulating information supports the hypothesis that oxidative stress involving lipid peroxidation may contribute to the pathogenesis of Parkinson’s disease.
T. Yoshikawa, T. Yoshikawa
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Free Radical Scavenging Activity of Carnosine
Free Radical Research Communications, 1991The capacity of carnosine to decrease free radical-induced damage was evaluated using the oxidation of brain homogenates, the 2,2'-azobis-2-amidino propane-induced oxidation of erythrocyte ghost membranes, the radiation induced inactivation of horseradish peroxidase and the 2,2'-azobis-2-amidino propane-induced inactivation of lysozyme.
M, Salim-Hanna, E, Lissi, L A, Videla
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