An Isocaloric Nordic Diet Modulates RELA and TNFRSF1A Gene Expression in Peripheral Blood Mononuclear Cells in Individuals with Metabolic Syndrome—A SYSDIET Sub-Study

Stine M. Ulven (Corresponding Author), Kirsten B. Holven, Amanda Rundblad, Mari C. W. Myhrstad, Lena Leder, Ingrid Dahlman, Vanessa D. De Mello, Ursula Schwab, Carsten Carlberg, Jussi Pihlajamäki, Kjeld Hermansen, Lars O. Dragsted, Ingibjörg Gunnarsdottir, Lieselotte Cloetens, Björn Åkesson, Fredrik Rosqvist, Janne Hukkanen, Karl-heinz Herzig, Markku J Savolainen, Ulf RisérusInga Thorsdottir, Kaisa S Poutanen, Peter Arner, Matti Uusitupa, Marjukka Kolehmainen

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Abstract

A healthy dietary pattern is associated with a lower risk of metabolic syndrome (MetS) and reduced inflammation. To explore this at the molecular level, we investigated the effect of a Nordic diet (ND) on changes in the gene expression profiles of inflammatory and lipid-related genes in peripheral blood mononuclear cells (PBMCs) of individuals with MetS. We hypothesized that the intake of an ND compared to a control diet (CD) would alter the expression of inflammatory genes and genes involved in lipid metabolism. The individuals with MetS underwent an 18/24-week randomized intervention to compare a ND with a CD. Eighty-eight participants (66% women) were included in this sub-study of the larger SYSDIET study. Fasting PBMCs were collected before and after the intervention and changes in gene expression levels were measured using TaqMan Array Micro Fluidic Cards. Forty-eight pre-determined inflammatory and lipid related gene transcripts were analyzed. The expression level of the gene tumor necrosis factor (TNF) receptor superfamily member 1A (TNFRSF1A) was down-regulated (p = 0.004), whereas the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) subunit, RELA proto-oncogene, was up-regulated (p = 0.016) in the ND group compared to the CD group. In conclusion, intake of an ND in individuals with the MetS may affect immune function.
Original languageEnglish
Article number2932
JournalNutrients
Volume11
Issue number12
DOIs
Publication statusPublished - Dec 2019
MoE publication typeA1 Journal article-refereed

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    Ulven, S. M., Holven, K. B., Rundblad, A., Myhrstad, M. C. W., Leder, L., Dahlman, I., Mello, V. D. D., Schwab, U., Carlberg, C., Pihlajamäki, J., Hermansen, K., Dragsted, L. O., Gunnarsdottir, I., Cloetens, L., Åkesson, B., Rosqvist, F., Hukkanen, J., Herzig, K., Savolainen, M. J., ... Kolehmainen, M. (2019). An Isocaloric Nordic Diet Modulates RELA and TNFRSF1A Gene Expression in Peripheral Blood Mononuclear Cells in Individuals with Metabolic Syndrome—A SYSDIET Sub-Study. Nutrients, 11(12), [2932]. https://doi.org/10.3390/nu11122932