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Isoprostane levels in lipids extracted from atherosclerotic arteries of nonhuman primates
- Source :
- Free radical biologymedicine. 30(12)
- Publication Year :
- 2001
-
Abstract
- Nonhuman primates used in these studies had been fed for 5 years diets enriched with cholesterol and one of three classes of fatty acids: saturated, monounsaturated, or polyunsaturated fatty acids. Atherosclerotic iliac artery lipid extracts were quantitatively analyzed for cholesterol, cholesteryl esters, fatty acid composition, and a marker of lipid oxidation, the F(2)-isoprostanes. There was no significant difference in the mean accumulation of F(2)-isoprostanes among the different diet groups. To account for the small, individual variation in the arachidonate concentration the F(2)-isoprostane mass from each sample was normalized by dividing by arachidonate mass: F(2)-isoprostane mass/(mass arachidonate). At lower levels of cholesterol accumulation, the F(2)-isoprostane mass/(mass arachidonate) ratio was greater in lipids from POLY arteries compared to SAT arteries, but the reverse was true at high levels of cholesterol. F(2)-isoprostane/(mass arachidonate) increased with mole fraction linoleate for the SAT group, but decreased for the POLY group. In summary, these studies demonstrated that there is no simple explanation of how F(2)-isoprostane accumulation did not depend on the concentration of oxidizable lipids that promote free-radical lipid oxidation.
- Subjects :
- Isoprostane
Free Radicals
Arteriosclerosis
Arachidonic Acids
Palm Oil
Mole fraction
Dinoprost
Biochemistry
Iliac Artery
Linoleic Acid
chemistry.chemical_compound
Lipid oxidation
Physiology (medical)
Chlorocebus aethiops
Animals
Plant Oils
Safflower Oil
chemistry.chemical_classification
Iliac artery
Cholesterol
Significant difference
Fatty Acids
Cholesterol, LDL
Dietary Fats
Lipids
chemistry
Diet, Atherogenic
lipids (amino acids, peptides, and proteins)
Cholesterol Esters
Lipid Peroxidation
Gas chromatography–mass spectrometry
Oxidation-Reduction
Polyunsaturated fatty acid
Oleic Acid
Subjects
Details
- ISSN :
- 08915849
- Volume :
- 30
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Free radical biologymedicine
- Accession number :
- edsair.doi.dedup.....b6cb43fdb903d76b5f849ab861c8bef3