منابع مشابه
Comparison of Prooxidant-antioxidant Balance Method with Crocin Method for Determination of Total Prooxidant-antioxidant Capacity
Objective(s) Comparison of prooxidant-antioxidant balance (PAB) assay with crocin assay. Materials and Methods Twenty eight serum samples were chosen, PAB and the total antioxidant capacity were measured by PAB assay and crocin, respectively, and the correlation of both assays, along with their correlation with other clinical and biochemical parameters, were determined. Results A significa...
متن کاملAntimutagenic and antioxidant/prooxidant activity of quercetin.
The present study has been performed to evaluate the antimutagenic activity of quercetin, ascorbic acid and their combination against an oxidative mutagen. An effort was also made to correlate this activity to the in vitro antioxidant activity of these agents. Antimutagenicity testing was done in Ames Salmonella Assay system using Salmonella typhimurium TA102 against t-butylhydroperoxide as an ...
متن کاملAntioxidant/prooxidant Effects of Bioactive Polyphenolics
Pine, grape and witch hazel byproducts are rich sources of polyphenols. From extracts (OW) soluble in both ethyl acetate and water we have generated a collection of fractions differing in percentage of pyrogallol groups. The mixtures were highly active as free radical scavengers against DPPH. The phenolics protected red blood cells from free radical induced hemolysis and were mildly cytotoxic t...
متن کاملIs nitric oxide (NO) an antioxidant or a prooxidant for lipid peroxidation?
Antioxidant and prooxidant effects of nitric oxide (NO) on lipid peroxidation in aqueous and non-aqueous media were examined. In an aqueous solution, NO did not induce peroxidation of unoxidized methyl linoleate (ML) and suppressed the radical initiator-induced oxidation of ML. NO suppressed the Fe(II) ion-induced oxidation of mouse liver microsomes. NO reduced the O2 consumption during the rad...
متن کاملAssessing antioxidant and prooxidant activities of phenolic compounds.
Methods for determining primary antioxidant activity were evaluated. A beta-carotene bleaching method and a free radical method using 2, 2-diphenyl-1-picrylhydrazyl (DPPH(*)) were modified to rapidly test samples for potential antioxidant activity. Malonaldehyde production in a linoleic acid emulsion system assayed by an HPLC method was also used to determine antioxidant and prooxidant activiti...
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ژورنال
عنوان ژورنال: Grasas y Aceites
سال: 2000
ISSN: 1988-4214,0017-3495
DOI: 10.3989/gya.2000.v51.i4.423