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Evaluation of (-)-epicatechin metabolites as recovery biomarker of dietary flavan-3-ol intake
Journal article   Open access   Peer reviewed

Evaluation of (-)-epicatechin metabolites as recovery biomarker of dietary flavan-3-ol intake

Javier I Ottaviani, Reedmond Fong, Jennifer Kimball, Jodi L Ensunsa, Nicola Gray, Anna Vogiatzoglou, Abigail Britten, Debora Lucarelli, Robert Luben, Philip B Grace, …
Scientific reports, Vol.9(1), 13108
2019
PMCID: 6739331
PMID: 31511603
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Published1.12 MBDownloadView
CC BY V4.0 Open Access

Abstract

Adult Biomarkers - metabolism Catechin - metabolism Cohort Studies Diet Female Flavonoids - pharmacology Healthy Volunteers Humans Male Middle Aged
Data from dietary intervention studies suggest that intake of (-)-epicatechin mediates beneficial vascular effects in humans. However, population-based investigations are required to evaluate associations between habitual intake and health and these studies rely on accurate estimates of intake, which nutritional biomarkers can provide. Here, we evaluate a series of structurally related (-)-epicatechin metabolites (SREM), particularly (-)-epicatechin-3'-glucuronide, (-)-epicatechin-3'-sulfate and 3'-O-methyl-(-)-epicatechin-5-sulfate (SREM ), as flavan-3-ol and (-)-epicatechin intake. SREM in urine proved to be a specific indicator of (-)-epicatechin intake, showing also a strong correlation with the amount of (-)-epicatechin ingested (R : 0.86 (95% CI 0.8l; 0.92). The median recovery of (-)-epicatechin as SREM in 24 h urine was 10% (IQR 7-13%) and we found SREM in the majority of participants of EPIC Norfolk (83% of 24,341) with a mean concentration of 2.4 ± 3.2 µmol/L. Our results show that SREM are suitable as biomarker of (-)-epicatechin intake. According to evaluation criteria from IARC and the Institute of Medicine, the results obtained support use of SREM as a recovery biomarker to estimate actual intake of (-)-epicatechin.

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Collaboration types
Industry collaboration
Domestic collaboration
International collaboration
Citation topics
3 Agriculture, Environment & Ecology
3.16 Phytochemicals
3.16.28 Antioxidant Activity
Web Of Science research areas
Nutrition & Dietetics
ESI research areas
Multidisciplinary
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