Results 71 to 80 of about 3,521 (119)

The antioxidant activity of caroverine

Biochemical Pharmacology, 2003
Caroverine, 1-(2-diethylaminoethyl)-3-(p-methoxy benzyl)-1,2-dihydro-2-quinoxalin-2-on-hydrochloride, is a class B calcium-channel-blocker and antiglutamatergic agent with significant effects on the brain function. Caroverine exhibits competitive AMPA antagonism, and at higher concentrations, noncompetitive NMDA antagonism.
Natalia, Udilova, Andrey V, Kozlov, Werner, Bieberschulte, Klemens, Frei, Klaus, Ehrenberger, Hans, Nohl   +5 more
openaire   +2 more sources

Antioxidant activity of carotenoids

Molecular Aspects of Medicine, 2003
Carotenoids are pigments which play a major role in the protection of plants against photooxidative processes. They are efficient antioxidants scavenging singlet molecular oxygen and peroxyl radicals. In the human organism, carotenoids are part of the antioxidant defense system.
Wilhelm, Stahl, Helmut, Sies
openaire   +2 more sources

Antioxidant activity and active sites of phospholipids as antioxidants

Journal of the American Oil Chemists' Society, 1997
AbstractVarious compounds, representative of the major functional groups in phospholipids, phosphatidylethanolamine and phosphatidylcholine, were tested for antioxidant activity (AA) in a sardine oil system to determine the relationship between molecular structure and the AA of these compounds. AA was found to be attributable not only to the side‐chain
Hiroaki Saito, Kenji Ishihara
openaire   +1 more source

Mucolytics and antioxidant activity

Life Sciences, 1999
We investigated effects of the mucolytics ambroxol and N-acetylcysteine on airways reactivity evoked by histamine in guinea pigs exposed to toluene vapors. We did not find significant changes in reactivity of tracheal smooth muscle from animals treated with mucolytics compared to the control group.
A, Strapková, G, Nosál'ová, S, Franová   +2 more
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Antioxidant Activity of Diethyldithiocarbamate

Free Radical Research, 1996
Diethyldithiocarbamate (DDC), a potent copper chelating agent, has long been used for the treatment of oxygen toxicity to the central nervous system, as an immunomodulator to treat cancer, and in HIV-infected patients. We evaluated the antioxidant properties of DDC, including its scavenging of reactive oxygen species, its reducing properties, its iron ...
J, Liu, M K, Shigenaga, L J, Yan, A, Mori, B N, Ames   +4 more
openaire   +2 more sources

Antioxidant activity of curcuminoids

Physical Chemistry Chemical Physics, 2019
The antioxidant activity of the keto and enol forms of curcuminoids isolated from the roots of Curcuma longa is directly related to CH3O⋯H–O and NOT to CO⋯H–O hydrogen bonds.
Sandra Llano, Sara Gómez, Julián Londoño, Albeiro Restrepo   +3 more
openaire   +2 more sources

On the antioxidant activity of melatonin

Free Radical Biology and Medicine, 1999
Melatonin has been widely reported to be an effective antioxidant. Studies of its ability to inhibit the autoxidation of lipids in homogeneous solution and in model heterogeneous systems show that melatonin is not a peroxyl radical trapping antioxidant. In contrast, melatonin can inhibit metal ion-catalyzed oxidation processes.
Antunes, F., Barclay, L.R.C., Ingold, K. U., King, M., Norris, J.Q., Scaiano, J.C., Xi, F.   +6 more
openaire   +2 more sources

Antioxidant Compounds and Antioxidant Activity in “Early Potatoes”

Journal of Agricultural and Food Chemistry, 2008
The antioxidant content and the antioxidant capacity of both hydrophilic and lipophilic antioxidant extracts from four "early potato" cultivars, grown in two different locations (Racale and Monteroni), were examined. There was a considerable variation in carotenoid content and weak differences in the ascorbic acid concentration of the examined ...
Leo L., Leone, A., Longo C, Lombardi, D., Raimo A., Zacheo, G.   +8 more
openaire   +4 more sources

Antioxidant activity of retinoids

1990
Publisher Summary Although the effects of retinoids are numerous in biological systems, among them are indications that retinoids may exert some of their actions by virtue of their acting as lipid-soluble antioxidants. In evaluating a substance as an antioxidant, it is important to use more than one assay, because an antioxidant may be very sensitive
M, Hiramatsu, L, Packer
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Antiradical and antioxidant activities of new bio-antioxidants

Biochimie, 2012
Antioxidants could be promising agents for management of oxidative stress-related diseases. New biologically active compounds, belonging to a rare class of natural lignans with antiangiogenic, antitumoral and DNA intercalating properties, have been recently synthesized.
V. D. Kancheva, SASO, Luciano, S. E. Angelova, M. C. Foti, A. Slavova Kasakova, C. Daquino, V. Enchev, O. Firuzi, J. Nechev   +8 more
openaire   +5 more sources