A spectrophotometric assay for lipid peroxides in serum lipoproteins using a commercially available reagent. 1989

M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
Institute of Medical Biochemistry, Graz, Austria.

A method is described for measuring lipid peroxides by means of the color reagent of a commercially available test kit for cholesterol estimation. In principle, this assay makes use of the oxidative capacity of lipid peroxides to convert iodide to iodine, which can be measured photometrically at 365 nm. Calibration curves were obtained using peroxides such as H2O2, t-butyl hydroperoxide, and cumene hydroperoxide. A stoichiometric relationship was observed between the amount of organic peroxides assayed and the concentration of iodine produced. Concentrations of lipid peroxides as small as 1 nmol/ml could be measured. The ability to estimate lipid peroxides of isolated low density lipoprotein was demonstrated.

UI MeSH Term Description Entries
D008054 Lipid Peroxides Peroxides produced in the presence of a free radical by the oxidation of unsaturated fatty acids in the cell in the presence of molecular oxygen. The formation of lipid peroxides results in the destruction of the original lipid leading to the loss of integrity of the membranes. They therefore cause a variety of toxic effects in vivo and their formation is considered a pathological process in biological systems. Their formation can be inhibited by antioxidants, such as vitamin E, structural separation or low oxygen tension. Fatty Acid Hydroperoxide,Lipid Peroxide,Lipoperoxide,Fatty Acid Hydroperoxides,Lipid Hydroperoxide,Lipoperoxides,Acid Hydroperoxide, Fatty,Acid Hydroperoxides, Fatty,Hydroperoxide, Fatty Acid,Hydroperoxide, Lipid,Hydroperoxides, Fatty Acid,Peroxide, Lipid,Peroxides, Lipid
D008074 Lipoproteins Lipid-protein complexes involved in the transportation and metabolism of lipids in the body. They are spherical particles consisting of a hydrophobic core of TRIGLYCERIDES and CHOLESTEROL ESTERS surrounded by a layer of hydrophilic free CHOLESTEROL; PHOSPHOLIPIDS; and APOLIPOPROTEINS. Lipoproteins are classified by their varying buoyant density and sizes. Circulating Lipoproteins,Lipoprotein,Lipoproteins, Circulating
D008077 Lipoproteins, LDL A class of lipoproteins of small size (18-25 nm) and light (1.019-1.063 g/ml) particles with a core composed mainly of CHOLESTEROL ESTERS and smaller amounts of TRIGLYCERIDES. The surface monolayer consists mostly of PHOSPHOLIPIDS, a single copy of APOLIPOPROTEIN B-100, and free cholesterol molecules. The main LDL function is to transport cholesterol and cholesterol esters to extrahepatic tissues. Low-Density Lipoprotein,Low-Density Lipoproteins,beta-Lipoprotein,beta-Lipoproteins,LDL(1),LDL(2),LDL-1,LDL-2,LDL1,LDL2,Low-Density Lipoprotein 1,Low-Density Lipoprotein 2,LDL Lipoproteins,Lipoprotein, Low-Density,Lipoproteins, Low-Density,Low Density Lipoprotein,Low Density Lipoprotein 1,Low Density Lipoprotein 2,Low Density Lipoproteins,beta Lipoprotein,beta Lipoproteins
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013053 Spectrophotometry The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

Related Publications

M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
November 1992, Clinical chemistry,
M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
November 1990, Nihon rinsho. Japanese journal of clinical medicine,
M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
February 1985, Biochemistry international,
M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
May 2023, Polymers,
M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
August 1985, Laboratory animal science,
M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
November 1981, Prostaglandins,
M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
January 1998, Methods in molecular biology (Clifton, N.J.),
M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
September 2008, Zoo biology,
M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
December 1972, Clinical biochemistry,
M el-Saadani, and H Esterbauer, and M el-Sayed, and M Goher, and A Y Nassar, and G Jürgens
January 2007, Veterinary research communications,
Copied contents to your clipboard!