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Effects of dietary fat modification on oxidative stress and inflammatory markers in the LIPGENE study.

Petersson, H., Risérus, U., McMonagle, J., Gulseth, H. L., Tierney , A. C., Morange, S., Helal, O., Shaw, D. I., Ruano, J. A., López-Miranda, J., Kieć-Wilk , B., Gołąbek , I., Blaak, E. E., Saris, W. H.M., Drevon , C. A., Lovegrove, J. A., Roche, H. M. and Basu, S. (2010) Effects of dietary fat modification on oxidative stress and inflammatory markers in the LIPGENE study. British Journal of Nutrition, 104 (9). pp. 1357-1362. ISSN 1475-2662

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To link to this item DOI: 10.1017/S000711451000228X


Subjects with the metabolic syndrome (MetS) have enhanced oxidative stress and inflammation. Dietary fat quality has been proposed to be implicated in these conditions. We investigated the impact of four diets distinct in fat quantity and quality on 8-iso-PGF2α (a major F2-isoprostane and oxidative stress indicator), 15-keto-13,14-dihydro-PGF2α (15-keto-dihydro-PGF2α, a major PGF2α metabolite and marker of cyclooxygenase-mediated inflammation) and C-reactive protein (CRP). In a 12-week parallel multicentre dietary intervention study (LIPGENE), 417 volunteers with the MetS were randomly assigned to one of the four diets: two high-fat diets (38 % energy (%E)) rich in SFA or MUFA and two low-fat high-complex carbohydrate diets (28 %E) with (LFHCC n-3) or without (LFHCC) 1·24 g/d of very long chain n-3 fatty acid supplementation. Urinary levels of 8-iso-PGF2α and 15-keto-dihydro-PGF2α were determined by RIA and adjusted for urinary creatinine levels. Serum concentration of CRP was measured by ELISA. Neither concentrations of 8-iso-PGF2α and 15-keto-dihydro-PGF2α nor those of CRP differed between diet groups at baseline (P>0·07) or at the end of the study (P>0·44). Also, no differences in changes of the markers were observed between the diet groups (8-iso-PGF2α, P = 0·83; 15-keto-dihydro-PGF2α, P = 0·45; and CRP, P = 0·97). In conclusion, a 12-week dietary fat modification did not affect the investigated markers of oxidative stress and inflammation among subjects with the MetS in the LIPGENE study.

Item Type:Article
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences > Human Nutrition Research Group
ID Code:16368
Publisher:Cambridge University Press

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