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Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't
Hospital Diet Enriched With Rapeseed or Sunflower Oils Is Associated With a Decrease in Plasma 16:1n-7 and Some Metabolic Disorders in the Elderly.
Lipids 2018 Februrary
We recently demonstrated that the prevalence of dysglycemia was high among hospitalized elderly people who were fed a low fat diet (27.7% of energy) and was positively associated with plasma 16:1n-7, an indicator of de novo lipogenesis (DNL). Fatty acids in the DNL pathway have been shown to be associated with a higher risk of metabolic syndrome (MetS). The purpose of this study was to investigate the potential beneficial effects of fat enrichment (up to 34.1%en) of the hospital diet in 111 patients (30 men and 81 women, 84 ± 7 years) during 6 weeks. Based on gender, they were randomly given a diet supplemented either with rapeseed oil (RO) or with sunflower oil (SO). Fatty acids of cholesteryl esters and erythrocyte phospholipids and markers of metabolic disorders were evaluated before and after dietary intervention. Both enriched diets significantly, and to a similar extent, decreased (1) the overall prevalence of dysglycemia (by 25-33%) and MetS (by 31-43%) and (2) plasma 16:1n-7 mol% in men and women. Dysglycemia prevalence adjusted by the diets was reduced in men versus baseline; no change was found in women. Enrichment of the diet with RO or SO resulted in a difference in fatty acid compositions, that is, EPA (mol%) and the omega-3 index increased with RO, while proportions of 18:1n-7, 18:1n-9, and EPA decreased with SO. These findings highlight the need for adequate fat intake in the elderly. For supplementation of the hospital diet, RO, which led to a higher proportion of circulating n-3 polyunsaturated fatty acids (PUFA) and is known to be beneficial, may be preferred to SO.
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