Prostacyclin production and lipid peroxidation in the aorta of rats fed with cholesterol autoxidation products.
The stable metabolite of prostacyclin 6-keto PGF1 alpha originating from the (1-14C) arachidonic acid, and lipid peroxidation expressed as thiobarbituric acid-reacting substance (TBARS) were studied in the aorta of rats fed a diet enriched in 2% w/w cholesterol autoxidation products for 24 hours prior to sacrifice. A slight increase was found in the amount of TBARS as well as in the conversion of (1-14C) arachidonic acid to 6-keto PGF1 alpha. These results suggest that in aorta there exists a protection mechanism which acts to increase the production of prostacyclin.
D015121:6-Ketoprostaglandin F1 alpha / Q000096:biosynthesis; D000818:Animals; D001011:Aorta / Q000378:metabolism; D016718:Arachidonic Acid; D001095:Arachidonic Acids / Q000378:metabolism; D001158:Arteries / Q000378:metabolism* / Q000473:pathology; D002784:Cholesterol / Q000378:metabolism*; D004036:Diet, Atherogenic; D011464:Epoprostenol / Q000096:biosynthesis*; D008054:Lipid Peroxides / Q000096:biosynthesis*; D008297:Male; D010084:Oxidation-Reduction; D051381:Rats; D011919:Rats, Inbred Strains; D013858:Thiobarbiturates
D001095:Arachidonic Acids; D008054:Lipid Peroxides; D013858:Thiobarbiturates; D016718:Arachidonic Acid; D015121:6-Ketoprostaglandin F1 alpha; D002784:Cholesterol; D011464:Epoprostenol; C029684:thiobarbituric acid