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Long-term high fructose and saturated fat diet affects plasma fatty acid profile in rats

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2012年第4期13卷 307-317页

作者： Fabrice TRANCHIDA Léopold TCHIAKPE Zo RAKOTONIAINA valérie deyris Olivier RAVION Abel HIOL Institute of Molecular Sciences of Marseilles iSm2 UMR 7313CNRSAix-Marseille University13397 Marseilles Cedex 20France Laboratory of Nutrition-Dietetics Faculty of PharmacyAix-Marseille University13385 Marseilles Cedex 5France Food Sciences Department of Biotechnology EngineeringInstitute of TechnologyUniversity of the French West Indies and GuianaSaint-Claude 97120France

As the consumption of fructose and saturated fatty acids(FAs) has greatly increased in western diets and is linked with an increased risk of metabolic syndrome,the aim of this study was to investigate the effects of a mod-erate(10 weeks) and a prolonged(30 weeks) high fructose and saturated fatty acid(HFS) diet on plasma FA com-position in *** effects of a few weeks of HFS diet had already been described,but in this paper we tried to es-tablish whether these effects persist or if they are modified after 10 or 30 *** hypothesized that the plasma FA profile would be altered between 10 and 30 weeks of the HFS *** fed with either the HFS or a standard diet were tested after 10 weeks and again after 30 *** 10 weeks of feeding,HFS-fed rats developed the metabolic syndrome,as manifested by an increase in fasting insulinemia,total cholesterol and triglyceride levels,as well as by impaired glucose ***,the plasma FA profile of the HFS group showed higher proportions of monounsaturated FAs like palmitoleic acid [16:1(n-7)] and oleic acid [18:1(n-9)],whereas the proportions of some polyunsaturated n-6 FAs,such as linoleic acid [18:2(n-6)] and arachidonic acid [20:4(n-6)],were lower than those in the control *** 30 weeks of the HFS diet,we observed changes mainly in the levels of 16:1(n-7)(decreased) and 20:4(n-6)(increased).Together,our results suggest that an HFS diet could lead to an adaptive response of the plasma FA profile over time,in association with the development of the metabolic syndrome.

关键词： High fructose and saturated fatty acid diet Metabolic syndrome Plasma fatty acids Adaptive response Rats

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