Autor según el artículo: Gerard Aragonès; Manuel Suárez; Andrea Ardid-Ruiz; Maria Vinaixa; Miguel A. Rodríguez; Xavier Correig; Lluís Arola; Cinta Bladé

Departamento: Bioquímica i Biotecnologia Enginyeria Electrònica

Autor/es de la URV: 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

Palabras clave: PROANTHOCYANIDINS NAD+

Resumen: 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.

Grupo de investigación: Grup de Recerca en Nutrigenòmica Unitat de Recerca Biomèdica Yanes Lab Signal Processing for Omic Sciences

Áreas temáticas: Bioquímica i biotecnologia Bioquímica y tecnología Biochemistry and technology

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 2045-2322

Identificador del autor: 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

Fecha de alta del registro: 2016-05-09

Volumen de revista: 6

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.nature.com/articles/srep24977

DOI del artículo: 10.1038/srep24977

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2016

Página inicial: Article number 24977

Tipo de publicación: Article Artículo Article