title: Interactions of ferrous ions with peroxidized lecithin-liposomes.
abstract: Oxidation of Fe2+ in the presence of peroxidized lecithin-liposomes small unilamellar vesicles suspended in various media (pH = 5.5) is described. Peroxidation of lecithin was induced by UV light and assayed by three methods: estimation of conjugated dienes, accumulation of hydroperoxides and by the thiobarbituric acid test. The oxidation of Fe2+ was accelerated by phosphate and citrate buffers, but in acetate buffer it was dependent on lipid peroxidases concentration and exhibited saturation kinetics.
authors.affiliation: Department of Biochemistry and Biophysics, Silesian Medical Academy, Sosnowiec, Poland.
authors.forename: E
authors.initials: E
authors.lastname: Kowalska
authors.forename: T
authors.initials: T
authors.lastname: Naglik
mesh_terms: D005296:Ferrous Compounds; D007700:Kinetics; D015227:Lipid Peroxidation; D008081:Liposomes; D010084:Oxidation-Reduction; D010713:Phosphatidylcholines / Q000737:chemistry* / Q000528:radiation effects; D000644:Quaternary Ammonium Compounds; D014466:Ultraviolet Rays
chemical_list: D005296:Ferrous Compounds; D008081:Liposomes; D010713:Phosphatidylcholines; D000644:Quaternary Ammonium Compounds; C038178:ammonium ferrous sulfate