The effect of very low energy diets on the fatty acid composition of serum lipids. 1989

J H Wilson, and T Rietveld, and J W Van den Berg, and H Jansen, and G R Swart, and S W Lamberts
Department of Internal Medicine, University Hospital Dijkzigt, Rotterdam, The Netherlands.

The fatty acid composition of serum phospholipids, cholesteryl esters and triglycerides was measured in 11 obese individuals before and after 2 and 4 weeks treatment with a liquid diet providing about 600 kcal and 70 g protein per day. The patients received 20g of lipid, which was either maize oil and safflower oil (6 patients) or maize oil and evening primrose oil (5 patients). During treatment serum phospholipid linoleic acid (C18:2n-6) concentration remained constant, the dihomo-gamma-linolenic acid (C20:3n-6) concentration decreased by 44 percent in the safflower oil group and by 37 percent in the evening primrose oil group and the arachidonic acid (C20:4n-6) increased by 26 percent in the safflower oil group and by 20 percent in the evening primrose oil group. The increase in phospholipid arachidonate showed a significant positive correlation with total weight loss during the treatment period. These results suggest that during weight reduction there is a increased mobilization of arachidonic acid from tissues and a decreased rate of linoleic acid desaturation and elongation, which was not significantly influenced by providing gamma-linolenic acid in the diet.

UI MeSH Term Description Entries
D008041 Linoleic Acids Eighteen-carbon essential fatty acids that contain two double bonds. Acids, Linoleic
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
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009765 Obesity A status with BODY WEIGHT that is grossly above the recommended standards, usually due to accumulation of excess FATS in the body. The standards may vary with age, sex, genetic or cultural background. In the BODY MASS INDEX, a BMI greater than 30.0 kg/m2 is considered obese, and a BMI greater than 40.0 kg/m2 is considered morbidly obese (MORBID OBESITY).
D010743 Phospholipids Lipids containing one or more phosphate groups, particularly those derived from either glycerol (phosphoglycerides see GLYCEROPHOSPHOLIPIDS) or sphingosine (SPHINGOLIPIDS). They are polar lipids that are of great importance for the structure and function of cell membranes and are the most abundant of membrane lipids, although not stored in large amounts in the system. Phosphatides,Phospholipid
D010938 Plant Oils Oils derived from plants or plant products. Oils, Plant,Oils, Vegetable,Plant Oil,Vegetable Oil,Vegetable Oils,Oil, Plant,Oil, Vegetable
D002149 Energy Intake Total number of calories taken in daily whether ingested or by parenteral routes. Caloric Intake,Calorie Intake,Intake, Calorie,Intake, Energy
D002788 Cholesterol Esters Fatty acid esters of cholesterol which constitute about two-thirds of the cholesterol in the plasma. The accumulation of cholesterol esters in the arterial intima is a characteristic feature of atherosclerosis. Cholesterol Ester,Cholesteryl Ester,Cholesteryl Esters,Ester, Cholesterol,Ester, Cholesteryl,Esters, Cholesterol,Esters, Cholesteryl
D003314 Corn Oil Oil from ZEA MAYS or corn plant. Maize Oil,Lipomul,Corn Oils,Lipomuls,Maize Oils,Oil, Corn,Oil, Maize,Oils, Corn,Oils, Maize

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