• Nutrition · Sep 2018

    Role of dietary α- and γ-tocopherol from Rosa mosqueta oil in the prevention of alterations induced by high-fat diet in a murine model.

    • Gladys Tapia, David Silva, Nalda Romero, Paulina Pettinelli, Camila G Dossi, Manuel de Miguel, and Daniel González-Mañán.
    • Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile.
    • Nutrition. 2018 Sep 1; 53: 1-8.

    ObjectiveThe aim of this study was to evaluate the contribution of tocopherols present in Rosa mosqueta oil (RM) in the prevention of high-fat diet (HFD)-induced alterations.MethodsMale C57 BL/6 J mice (n = 9/group) were fed for 12 wk and divided into four groups: control (CD; 10% kcal fat, 20% kcal protein, 70% kcal carbohydrates); HFD (60% as fat, 20% kcal protein, 20% kcal carbohydrates); HFD + RM (0.01 mL/g body weight/d); and HFD + RM- without tocopherols (0.01 mL/g body weight/d). Parameters of obesity, liver steatosis (histology, triacylglycerols content), inflammation (adipose NLRP3 inflammasome, tumor necrosis factor-α and interleukin-1 β expression, hepatic nuclear factor-κB) and oxidative stress (hepatic Nrf2 activation, carbonylated proteins) were evaluated.ResultsLiver steatosis, inflammatory, and oxidative stress parameters were significantly (P < 0.05) increased in the HFD + RM- compared with the HFD + RM, with no differences between HFD and HFD + RM-.ConclusionThe present study suggests that α- and γ-tocopherols from RM may have an important role in the prevention of alterations induced by HFD.Copyright © 2018 Elsevier Inc. All rights reserved.

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