Brazilian Journal of medical and biological research

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Interleukin-12 as a biomarker of the beneficial effects of food restriction in mice receiving high fat diet or high carbohydrate diet

C.B. de Almeida-Souza, M.M. Antunes, G. Godoy, C.R. Schamber, M.A.R.C.P. Silva, R.B. Bazotte

The impact of food restriction (FR) during 56 days on serum levels of cytokines in mice fed a high-fat diet (HFD) or highcarbohydrate diet (HCD) were evaluated. The amount of food was reduced 50% for HFD-FR and HCD-FR groups compared to mice receiving free access to HFD (HFD group) or HCD (HCD group). We quantified the serum levels of basic fibroblast growth factor, granulocyte-macrophage colony-stimulating factor, inducible protein 10, interferon g, interleukin 1a (IL-1a), IL-1b, IL-2, IL-4, IL-5, IL-6, IL-10, IL-12, IL-13, IL-17, keratinocyte chemoattractant, macrophage inflammatory protein-1a, monocyte chemotactic protein 1, monokine induced by IFN-g, and tumor necrosis factor a. Only IL-12 levels were lower (Po0.05), for both HFD-FR (HFD-FR vs HFD) and HCD-FR (HCD-FR vs HCD). Therefore, IL-12 levels could be considered a biological marker of the beneficial effects of FR.

Keywords: Pro-inflammatory cytokines; Anti-inflammatory cytokines; Serum cytokines; Caloric restriction; Nutrition




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