Abstract
Fatty acid composition of plasma phospholipids (PL), triglycerides (TG), and sterol esters (STE) was determined by high-resolution capillary gas-liquid chromatography in 22 obese children (age: 13.7±1.4 y, body weight relative to normal weight for height: 170±24%, mean ±SD) and compared with data obtained in 25 age-matched healthy controls. There were no differences in the levels of linoleic acid (LA, C18∶2n-6) in any of the plasma fractions from the obese children and the controls. Obese children exhibited significantly higher values of arachidonic acid (AA, C20∶4n-6) than controls both in PL (12.6 [2.4] vs. 8.3 [1.4], % wt/wt, [median (interquartile range)],P<0.001) and STE (7.3 [1.8] vs. 6.0 [1.1],P<0.05). Similarly, obese children showed higher values than controls for dihomo-γ-linolenic acid (DHGLA, C20∶3n-6) in PL (4.0 [0.5] vs. 3.0 [0.6],P<0.001), TG (0.4 [0.1] vs. 0.2 [0.1],P<0.001), and STE (0.9 [0.1] vs. 0.7 [0.1],P<0.01), and for γ-linolenic acid (C18∶3n-6) in STE (1.1 [0.2] vs. 0.8 [0.2],P<0.001). The AA/LA ratios were higher in obese children than in controls in PL (0.68 [0.16] vs. 0.42 [0.09],P<0.0005) and STE (0.16 [0.04] vs. 0.12 [0.02],P<0.05), whereas the AA/DHGLA ratios were lower in TG of obese children than in controls (3.40 [0.64] vs. 5.10 [1.75],P<0.005). Plasma glucose concentrations were inversely related to AA in TG (r=0.53,P<0.05), and plasma TG concentrations were inversely related to AA in PL and STE (r=−0.49,P<0.05 andr=−0.48,P<0.05) and to the AA/DHGLA ratios in PL (r=−0.57,P<0.01),TG (r=−0.56,P<0.01) and STE (r=−0.56,P<0.01). We conclude that the significantly higher values of n-6 long-chain polyunsaturated fatty acids (LCP) in plasma lipids of obese children than in age-matched controls may be caused by an enhanced activity of Δ6-desaturation, and we speculate that elevated fasting immunoreactive insulin seen in obese children (19.4±8.0 μU/mL) may stimulate synthesis of n-6 LCP fatty acids.
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Abbreviations
- AA:
-
arachidonic acid
- DHGLA:
-
dihomo-γ-linolenic acid
- EFA:
-
essential fatty acid
- GLA:
-
γ-linolenic acid
- LA:
-
linoleic acid
- IRI:
-
immunoreactive insulin
- LCP:
-
long-chain polyunsaturated fatty acid
- PL:
-
phospholipid
- PUFA:
-
polyunsaturated fatty acids
- STE:
-
sterol ester
- TG:
-
triglyceride
References
Rössner, S., Walldius, G., and Björvell, H. (1989) Fatty Acid Composition in Serum Lipids and Adipose Tissue in Severe Obesity Before and After Six Weeks of Weight Loss,Int. J. Obesity 13, 603–612.
Gray, D.S., Takahashi, M., Bauer, M., and Bray, G.A. (1991) Changes in Individual Plasma Free Fatty Acids in Obese Females During Fasting and Refeeding,Int. J. Obesity 15, 163–168.
Phinney, S.D., Davis, P.G., Johnson, S.B., and Holman, R.T. (1991) Obesity and Weight Loss Alter Serum Polyunsaturated Lipids in Humans,Am. J. Clin. Nutr. 53, 831–838.
Christophe, A., and Vermeulen, A. (1992) Effects of Weight Loss on the Fatty Acid Composition of Serum Lipids in Obese Women,Ann. Nutr. Metab. 36, 336–342.
Koletzko, B., and Braun, M. (1991) Arachidonic Acid and Early Human Growth: Is There a Relation?,Ann. Nutr. Metab. 35, 128–131.
Leaf, A.A., Leighfield, M.J., Costeloe, K.L., and Crawford, M.A. (1992) Long Chain Polyunsaturated Fatty Acids and Fetal Growth,Early Hum. Dev. 30, 183–191.
Carlson, S.E., Werkman, S.H., Peeples, J.M., Cooke, R.J., and Tolley, E.A. (1993) Arachidonic Acid Status Correlates with First Year Growth in Preterm Infants,Proc. Natl. Acad. Sci. USA 90, 1073–1077.
Guesnet, P., Bourre, J.-M., Guerre-Millo, M., Pascal, G., and Durand, G. (1990) Tissue Phospholipid Fatty Acid Composition in Genetically Lean (fa/-) or Obese (fa/fa) Zucker Female Rats on the Same Diets,Lipids 25, 517–522.
Cunnane, S.C., Manku, M.S., and Horrobin, D.F. (1985) Essential Fatty Acids in the Liver and Adipose Tissue of Genetically Obese Mice: Effect of Supplemental Linoleic and Gamma-Linolenic Acids,Brit. J. Nutr. 53, 441–448.
Parizková, J., and Roth, Z. (1972) Assessment of Depot Fat in Children from Skinfold Measurements by Holtain Caliper,Hum. Biol. 44, 613–616.
Moore, D.J., Durie, P.R., Forstner, G.G., and Pencharz, P.B. (1985) The Assessment of Nutritional Status in Children,Nutr. Res. 5, 797–799.
Tanner, J.M. (1962)Growth at Adolescence, 2nd edn., Blackwell Scientific Publications, Oxford.
Braham, D., and Tinder, P. (1972) An Improved Reagent for the Determination of Blood Glucose by the Oxidase System,Analyst 97, 142–146.
Folch, J., Lees, M., and Sloane-Stanley, G.H. (1957) A Simple Method for the Isolation and Purification of Total Lipids from Animal Tissues,J. Biol. Chem. 226, 497–509.
Koletzko, B., Schmidt, E., Bremer, H.J., Haug, M., and Harzer, G. (1989) Effects of Dietary Long-Chain Polyunsaturated Fatty Acids on the Essential Fatty Acid Status of Premature Infants,Eur. J. Pediatr. 148, 669–675.
Stoffel, W., Chu, F., and Ahrens, E.H. (1959) Analysis of Long-Chain Fatty Acids by Gas-Liquid Chromatography,Anal. Chem. 31, 307–308.
Decsi, T., and Koletzko, B. (1994) Fatty Acid Composition of Plasma Lipid Classes in Healthy Subjects from Birth to Young Adulthood,Eur. J. Pediatr. 153, 520–525.
Ryan, B.F., Joiner, B.L., and Ryan, T.A. (1985)Minitab Handbook, 2nd edn., PWS-Kent, Boston.
Phinney, S.D., Odin, R.S., Johnson, S.B., and Holman, R.T. (1990) Reduced Arachidonate in Serum Phospholipids and Cholesteryl Esters Associated with Vegetarian Diets in Humans,Am. J. Clin. Nutr. 51, 385–392.
Molnár, D., Dóber, I., and Györkő, B. (1985) Energy and Food Intake in Obese Children (in Hungarian with English summary),Gyermekgyógy 36, 501–505.
Nordoy, A., and Dyerberg, J. (1989) n-3 Fatty Acids in Health and Disease,J. Intern. Med. 225, Suppl. 1, 1–3.
Brenner, R.R. (1981) Nutritional and Hormonal Factors Influencing Desaturation of Essential Fatty Acids,Prog. Lipid Res. 20, 41–47.
Brenner, R.R. (1991) Endocrine Control of Fatty Acid Desaturation,Biochem. Soc. Trans. 18, 773–775.
Brenner, R.R. (1977) Regulatory Function of Delta-6-Desaturase—Key Enzyme of Polyunsaturated Fatty Acids Synthesis,Adv. Exp. Med. Biol. 83, 85–101.
De Tomas, M.E., Mercuri, O., and Rodrigo, A. (1980) Effects of Dietary Protein and EFA Deficiency on Liver Delta-5, Delta-6 and Delta-9 Desaturase Activities in the Early Developing Rat,J. Nutr. 110, 595–599.
Holman, R.T., Johnson, S.B., Mercuri, O., Itarte, H.J., Rodrigo, M.A., and De Tomas, M.E. (1981) Essential Fatty Acid Deficiency in Malnourished Children,Am. J. Clin. Nutr. 34, 1534–1539.
Wolff, J.A., Margolis, S., Buidoso-Wolff, K., Matusick, E., and MacLean, W.C. (1984) Plasma and Red Blood Cell Fatty Acid Composition in Children with Protein-Calorie Malnutrition,Pediatr. Res. 18, 162–167.
Koletzko, B., Abiodun, P.O., Laryea, M.D., and Bremer, H.J. (1986) Fatty Acid Composition of Plasma Lipids in Nigerian Children with Protein-Energy Malnutrition,Eur. J. Pediatr. 145, 109–115.
Mercuri, O., Peluffo, R.O., and Brenner, R.R. (1967) Effect of Insulin on the Oxidative Desaturation of Alpha-Linolenic, Oleic and Palmitic Acids,Lipids 2, 284–285.
Holman, R.T., Johnson, S.B., Gerrard, J.M., Mauer, S.M., Kupcho-Sandberg, S., and Brown, D.M. (1983) Arachidonic Acid Deficiency in Streptozocin-Induced Diabetes,Proc. Natl. Acad. Sci. USA 80, 2375–2379.
Huang, Y.-S., Horrobin, D.F., Manku, M.S., Mitchell, J., and Ryan, M.A. (1984) Tissue Phospholipid Fatty Acid Composition in the Diabetic Rat,Lipids 19, 367–370.
Spanheimer, R.G., Bar, R.S., and Roth, J. (1982) The Radioreceptor Assay, inDiabetes Mellitus and Obesity (Brodoff, B.N., and Bleecher, S.J., eds.) pp. 242–249, Williams and Wilkins, Baltimore.
Molnár, D. (1990) Insulin Secretion and Carbohydrate Tolerance in Childhood Obesity,Klin. Pädiatr. 202, 131–135.
Howard, B.V., Klimes, I., Vasquez, B., Brady, D., Nagulesparan, M., and Unger, R.H. (1984) The Antilipolytic Action of Insulin in Obese Subjects with Resistance to Its Glucoregulatory Action,J. Clin. Endocrinol. Metab. 58, 544–548.
Pelikánová, T., Kohout, M., Válek, J., Base, J., and Kazdová, L. (1989) Insulin Secretion and Insulin Action Related to the Serum Phospholipid Fatty Acid Pattern in Healthy Men,Metabolism 38, 188–192.
Borkman, M., Storlien, L.H., Pan, D.A., Jenkins, A.B., Chisholm, D.J., and Campbell, L.V. (1993) The Relation Between Insulin Sensitivity and Fatty-Acid Composition of Skeletal-Muscle Phospholipids,N. Engl. J. Med. 328, 238–244.
Cunnane, S.C., Huang, Y.-S., and Manku, M.S. (1985) Triaglycerol Content of Arachidonic Acid Varies Inversely with Total Triacylglycerol in Liver and Plasma,Biochim. Biophys. Acta 876, 183–186.
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Decsi, T., Molnár, D. & Koletzko, B. Long-chain polyunsaturated fatty acids in plasma lipids of obese children. Lipids 31, 305–311 (1996). https://doi.org/10.1007/BF02529877
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DOI: https://doi.org/10.1007/BF02529877