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A possible contribution of decrease in free fatty acids to low serum triglyceride levels after diets supplemented with n-6 and n-3 polyunsaturated fatty acids. 1990

P Singer, and M Wirth, and I Berger
Central Institute for Cardiovascular Research, Academy of Sciences Berlin-Buch, G.D.R.

Intraindividual comparisons of diets supplemented with sunflowerseed oil (rich in linoleic acid, LA, C18:2n-6), linseed oil (enriched with alpha-linolenic acid, LNA, C18:3n-3) and canned mackerel (rich in eicosapentaenoic acid, EPA, C20:5n-3 and docosahexaenoic acid, DHA, C22:6n-3) were made in 30 patients with primary hyperlipoproteinemia (HLP) of phenotypes IIa (n = 9), IIb (n = 7), IV (n = 7) and V (n = 7). The lipid- and blood pressure-lowering effects of polyunsaturated fatty acids (PUFA), particularly those of the EPA- and DHA-rich diet, were confirmed irrespective of the type of HLP. Apolipoproteins A-I and B remained unchanged. The most remarkable finding was a substantial depression of free fatty acids (FFA) within a standardized glucose tolerance test (GTT) associated with the fall of serum triglycerides after diets enriched with n-6 and especially after those supplemented with n-3 PUFA. It was suggested that the decrease of FFA indicates reduced peripheral lipolysis, which might be a hitherto ignored factor involved in the triglyceride-lowering action of n-6 and, more pronounced, of n-3 PUFA.

UI MeSH Term Description Entries
D006951 Hyperlipoproteinemias Conditions with abnormally elevated levels of LIPOPROTEINS in the blood. They may be inherited, acquired, primary, or secondary. Hyperlipoproteinemias are classified according to the pattern of lipoproteins on electrophoresis or ultracentrifugation. Hyperlipoproteinemia
D006953 Hyperlipoproteinemia Type IV A hypertriglyceridemia disorder, often with autosomal dominant inheritance. It is characterized by the persistent elevations of plasma TRIGLYCERIDES, endogenously synthesized and contained predominantly in VERY-LOW-DENSITY LIPOPROTEINS (pre-beta lipoproteins). In contrast, the plasma CHOLESTEROL and PHOSPHOLIPIDS usually remain within normal limits. Hyperprebetalipoproteinemia,Hypertriglyceridemia, Familial,Carbohydrate Inducible Hyperlipemia,Carbohydrate-Inducible Hyperlipemia,Familial Hyperlipoproteinemia Type 4,Familial Type IV Hyperlipoproteinemia,Hyper prebeta lipoproteinemia,Hyperlipoproteinemia, Type IV,Carbohydrate Inducible Hyperlipemias,Carbohydrate-Inducible Hyperlipemias,Familial Hypertriglyceridemia,Hyperlipemia, Carbohydrate Inducible,Hyperlipemia, Carbohydrate-Inducible,Hyperlipemias, Carbohydrate Inducible,Hyperlipemias, Carbohydrate-Inducible,Hyperlipoproteinemias, Type IV,Inducible Hyperlipemia, Carbohydrate,Inducible Hyperlipemias, Carbohydrate,Type IV Hyperlipoproteinemia,Type IV Hyperlipoproteinemias,Type IV, Hyperlipoproteinemia
D006954 Hyperlipoproteinemia Type V A severe type of hyperlipidemia, sometimes familial, that is characterized by the elevation of both plasma CHYLOMICRONS and TRIGLYCERIDES contained in VERY-LOW-DENSITY LIPOPROTEINS. Type V hyperlipoproteinemia is often associated with DIABETES MELLITUS and is not caused by reduced LIPOPROTEIN LIPASE activity as in HYPERLIPOPROTEINEMIA TYPE I . Hyperchylomicronemia Late Onset,Hyperchylomicronemia With Hyperprebetalipoproteinemia, Familial,Hyperchylomicronemia, Late-Onset,Hyperlipemia, Combined Fat And Carbohydrate-Induced,Hyperlipemia, Mixed,Hyperlipidemia, Type V,Hyperlipoproteinemia Type 5,Hyperlipoproteinemia, Type V,Hyperchylomicronemia Late Onsets,Hyperchylomicronemia, Late Onset,Hyperchylomicronemias, Late-Onset,Hyperlipemia, Combined Fat And Carbohydrate Induced,Hyperlipemias, Mixed,Hyperlipidemias, Type V,Hyperlipoproteinemia Type 5s,Hyperlipoproteinemias, Type V,Late-Onset Hyperchylomicronemia,Late-Onset Hyperchylomicronemias,Mixed Hyperlipemia,Mixed Hyperlipemias,Type V Hyperlipidemia,Type V Hyperlipidemias,Type V Hyperlipoproteinemia,Type V Hyperlipoproteinemias
D008041 Linoleic Acids Eighteen-carbon essential fatty acids that contain two double bonds. Acids, Linoleic
D008042 Linolenic Acids Eighteen-carbon essential fatty acids that contain three double bonds.
D008043 Linseed Oil The fixed oil obtained from the dried ripe seed of linseed, Linum usitatissimum (L. Linaceae). It is used as an emollient in liniments, pastes, and medicinal soaps, and in veterinary medicine as a laxative. It is also called flaxseed oil. (Dorland, 28th ed) Flaxseed Oil,Oil, Flaxseed,Oil, Linseed
D008055 Lipids A generic term for fats and lipoids, the alcohol-ether-soluble constituents of protoplasm, which are insoluble in water. They comprise the fats, fatty oils, essential oils, waxes, phospholipids, glycolipids, sulfolipids, aminolipids, chromolipids (lipochromes), and fatty acids. (Grant & Hackh's Chemical Dictionary, 5th ed) Lipid
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010938 Plant Oils Oils derived from plants or plant products. Oils, Plant,Oils, Vegetable,Plant Oil,Vegetable Oil,Vegetable Oils,Oil, Plant,Oil, Vegetable
D004042 Dietary Fats, Unsaturated Unsaturated fats or oils used in foods or as a food. Dietary Oils,Unsaturated Dietary Fats,Dietary Fat, Unsaturated,Dietary Oil,Fat, Unsaturated Dietary,Fats, Unsaturated Dietary,Oil, Dietary,Oils, Dietary,Unsaturated Dietary Fat

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