title: Potentiation of the bioavailability of blueberry phenolic compounds by co-ingested grape phenolic compounds in mice, revealed by targeted metabolomic profiling in plasma and feces.
abstract: The low bioavailability of dietary phenolic compounds, resulting from poor absorption and high rates of metabolism and excretion, is a concern as it can limit their potential beneficial effects on health. Targeted metabolomic profiling in plasma and feces of mice supplemented for 15 days with a blueberry extract, a grape extract or their combination revealed significantly increased plasma concentrations (3-5 fold) of blueberry phenolic metabolites in the presence of a co-ingested grape extract, associated with an equivalent decrease in their appearance in feces. Additionally, the repeated daily administration of the blueberry-grape combination significantly increased plasma phenolic concentrations (2-3-fold) compared to animals receiving only a single acute dose, with no such increase being observed with individual extracts. These findings highlight a positive interaction between blueberry and grape constituents, in which the grape extract enhanced the absorption of blueberry phenolic compounds. This study provides for the first time in vivo evidence of such an interaction occurring between co-ingested phenolic compounds from fruit extracts leading to their improved bioavailability.
authors.affiliation: Institute of Nutrition and Functional Foods (INAF), Laval University, 2440 boulevard Hochelaga, Québec (QC) G1V0A6, Canada. stephanie.dudonne.1@ulaval.ca.
authors.forename: Stéphanie
authors.initials: S
authors.lastname: Dudonné
authors.forename: Alexandre
authors.initials: A
authors.lastname: Dal-Pan
authors.forename: Pascal
authors.initials: P
authors.lastname: Dubé
authors.forename: Thibault V
authors.initials: TV
authors.lastname: Varin
authors.forename: Frédéric
authors.initials: F
authors.lastname: Calon
authors.forename: Yves
authors.initials: Y
authors.lastname: Desjardins
mesh_terms: D000818:Animals; D001682:Biological Availability; D029798:Blueberry Plants / Q000737:chemistry*; D019587:Dietary Supplements; D005243:Feces / Q000737:chemistry*; D056604:Grape Seed Extract / Q000097:blood / Q000493:pharmacokinetics; D008297:Male; D055432:Metabolomics; D051379:Mice; D008810:Mice, Inbred C57BL; D019800:Phenol / Q000097:blood* / Q000493:pharmacokinetics*; D064209:Phytochemicals / Q000097:blood / Q000493:pharmacokinetics; D027843:Vitis / Q000737:chemistry
chemical_list: D056604:Grape Seed Extract; D064209:Phytochemicals; D019800:Phenol