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  • Title: Effects of different types of polyunsaturated fatty acids on cholesterol esterification in human fibroblasts.
    Author: Pal S, Davis PJ.
    Journal: Biochem Int; 1991 Sep; 25(2):281-8. PubMed ID: 1789795.
    Abstract:
    We have enriched human fibroblasts with oleic acid, with linoleic acid and with eicosapentaenoic acid. The accumulation of cholesteryl esters in the cells and the rate of esterification of cholesterol by microsomal acyl-CoA:cholesterol acyltransferase (ACAT) were measured in these cells. Cholesteryl ester levels were lower in cells enriched with eicosapentaenoic acid compared with cells enriched with oleate or linoleate. We also observed significantly lower ACAT activities in the microsomes from fibroblasts enriched with the n-3 polyunsaturated fatty acids relative to cells enriched with oleic acid or linoleic acid. We suggest that the presence of n-3 polyunsaturated fatty acids might suppress cholesteryl ester accumulation and inhibit atherogenesis.
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