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A high-fat high-sucrose diet affects the long-term metabolic fate of grape proanthocyanidins in rats

European Journal of Nutrition, ISSN: 1436-6215, Vol: 57, Issue: 1, Page: 339-349
2018
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Article Description

Purpose: Polyphenol metabolites are key mediators of the biological activities of polyphenols. This study aimed to evaluate the long-term effects of a high-fat high-sucrose (HFHS) diet on the metabolism of proanthocyanidins from grape seed extract (GSE). Methods: Adult female Wistar–Kyoto rats were fed a standard (STD) or HFHS diet supplemented or not with GSE for 16 weeks. PA metabolites were determined by targeted HPLC–MS/MS analysis. Results: A lower concentration of total microbial-derived PA metabolites was present in urine and the aqueous fraction of faeces in the HFHS + GSE group than in the STD + GSE group. In contrast, a tendency towards the formation of conjugated (epi)catechin metabolites in the HFHS + GSE group was observed. Conclusions: These results show that a HFHS diet significantly modifies PA metabolism, probably via: (1) a shift in microbial communities not counteracted by the polyphenols themselves; and (2) an up-regulation of hepatic enzymes.

Bibliographic Details

Molinar-Toribio, Eunice; Fuguet, Elisabet; Ramos-Romero, Sara; Taltavull, Núria; Méndez, Lucía; Nogués, M Rosa; Medina, Isabel; Torres, Josep Lluís; Pérez-Jiménez, Jara

Springer Nature

Medicine; Nursing

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