Articles producció científica> Bioquímica i Biotecnologia

Dietary proanthocyanidins boost hepatic NAD + metabolism and SIRT1 expression and activity in a dose-dependent manner in healthy rats

  • Identification data

    Identifier: PC:1484
    Authors:
    Gerard AragonèsManuel SuárezAndrea Ardid-RuizMaria VinaixaMiguel A. RodríguezXavier CorreigLluís ArolaCinta Bladé
    Abstract:
    DOI: 10.1038/srep24977
  • Others:

    Author, as appears in the article.: Gerard Aragonès; Manuel Suárez; Andrea Ardid-Ruiz; Maria Vinaixa; Miguel A. Rodríguez; Xavier Correig; Lluís Arola; Cinta Bladé
    Department: Bioquímica i Biotecnologia Enginyeria Electrònica
    URV's Author/s: ARAGONÈS BARGALLÓ, GERARD; Manuel Suárez; Andrea Ardid-Ruiz; VINAIXA CREVILLENT, MARIA; RODRÍGUEZ GÓMEZ, MIQUEL ÀNGEL; CORREIG BLANCHAR, FRANCESC XAVIER; AROLA FERRER, LUIS MARIA; BLADÉ SEGARRA, MARIA CINTA
    Keywords: PROANTHOCYANIDINS NAD+
    Abstract: Proanthocyanidins (PACs) have been reported to modulate multiple targets by simultaneously controlling many pivotal metabolic pathways in the liver. However, the precise mechanism of PAC action on the regulation of the genes that control hepatic metabolism remains to be clarified. Accordingly, we used a metabolomic approach combining both nuclear magnetic resonance and mass spectrometry analysis to evaluate the changes induced by different doses of grape-seed PACs in the liver of healthy rats. Here, we report that PACs significantly increased the hepatic nicotinamide adenine dinucleotide (NAD+) content in a dose-dependent manner by specifically modulating the hepatic concentrations of the major NAD+ precursors as well as the mRNA levels of the genes that encode the enzymes involved in the cellular metabolism of NAD+. Notably, Sirtuin 1 (Sirt1) gene expression was also significantly up-regulated in a dose-response pattern. The increase in both the NAD+ availability and Sirt1 mRNA levels, in turn, resulted in the hepatic activation of SIRT1, which was significantly associated with improved protection against hepatic triglyceride accumulation. Our data clearly indicates that PAC consumption could be a valid tool to enhance hepatic SIRT1 activity through the modulation of NAD+ levels.
    Research group: Grup de Recerca en Nutrigenòmica Unitat de Recerca Biomèdica Yanes Lab Signal Processing for Omic Sciences
    Thematic Areas: Bioquímica i biotecnologia Bioquímica y tecnología Biochemistry and technology
    licence for use: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 2045-2322
    Author identifier: 0000-0001-8657-5726; n/a; n/a; 0000-0001-9804-0171; n/a; 0000-0002-6902-3054; 0000-0003-2767-1974; 0000-0003-2838-2402
    Record's date: 2016-05-09
    Journal volume: 6
    Papper version: info:eu-repo/semantics/publishedVersion
    Link to the original source: https://www.nature.com/articles/srep24977
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Article's DOI: 10.1038/srep24977
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2016
    First page: Article number 24977
    Publication Type: Article Artículo Article
  • Keywords:

    Síndrome metabòlica
    Metabòlits
    PROANTHOCYANIDINS
    NAD+
    Bioquímica i biotecnologia
    Bioquímica y tecnología
    Biochemistry and technology
    2045-2322
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