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Erschienen in: European Journal of Nutrition 3/2018

23.02.2017 | Original Contribution

Immune dysfunction and increased oxidative stress state in diet-induced obese mice are reverted by nutritional supplementation with monounsaturated and n-3 polyunsaturated fatty acids

verfasst von: Caroline Hunsche, Oskarina Hernandez, Alina Gheorghe, Ligia Esperanza Díaz, Ascensión Marcos, Mónica De la Fuente

Erschienen in: European Journal of Nutrition | Ausgabe 3/2018

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Abstract

Purpose

Obesity is associated with impaired immune defences and chronic low levels of inflammation and oxidation. In addition, this condition may lead to premature aging. The aim of the study was to evaluate the effects of a nutritional supplementation with monounsaturated and n-3 polyunsaturated fatty acids on several functions and oxidative stress parameters in peritoneal immune cells of obese mice, as well as on the life span of these animals.

Methods

Obesity was induced in adult female ICR/CD1 by the administration of a high-fat diet (HFD) for 14 weeks. During the last 6 weeks of HFD feeding, one group of obese mice received the same HFD, supplemented with 1500 mg of 2-hydroxyoleic acid (2-OHOA) and another with 3000 mg of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Several functions and oxidative stress parameters of peritoneal leukocytes were evaluated.

Results

The groups of obese mice treated with 2-OHOA or with EPA and DHA showed a significant improvement in several functions such as chemotaxis, phagocytosis, digestion capacity, Natural killer activity and lymphoproliferation in response to mitogens. All of these functions, which were decreased in obese mice, increased reaching similar levels to those found in non-obese controls. Both treatments also improved oxidative stress parameters such as xanthine oxidase activity, which decreased, catalase activity and glutathione levels, which increased.

Conclusion

These data suggest that dietary supplementation with monounsaturated and n-3 polyunsaturated fatty acids could be an effective nutritional intervention to restore the immune response and oxidative stress state, which are impaired in obese mice.
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Metadaten
Titel
Immune dysfunction and increased oxidative stress state in diet-induced obese mice are reverted by nutritional supplementation with monounsaturated and n-3 polyunsaturated fatty acids
verfasst von
Caroline Hunsche
Oskarina Hernandez
Alina Gheorghe
Ligia Esperanza Díaz
Ascensión Marcos
Mónica De la Fuente
Publikationsdatum
23.02.2017
Verlag
Springer Berlin Heidelberg
Erschienen in
European Journal of Nutrition / Ausgabe 3/2018
Print ISSN: 1436-6207
Elektronische ISSN: 1436-6215
DOI
https://doi.org/10.1007/s00394-017-1395-1

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