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Identification and monitoring of metabolite markers of dry bean consumption in parallel human and mouse studies

ScholarsArchive at Oregon State University

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Title Identification and monitoring of metabolite markers of dry bean consumption in parallel human and mouse studies
Names Perera, Thushanthi (creator)
Young, Matthew R. (creator)
Zhang, Zhiying (creator)
Murphy, Gwen (creator)
Colburn, Nancy H. (creator)
Lanza, Elaine (creator)
Hartman, Terryl J. (creator)
Cross, Amanda J. (creator)
Bobe, Gerd (creator)
Date Issued 2015-04 (iso8601)
Note To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by John Wiley & Sons Ltd. and can be found at: http://onlinelibrary.wiley.com/journal/10.1002/%28ISSN%291613-4133.
Abstract SCOPE: Aim of the study was to identify and monitor metabolite markers of dry bean consumption
in parallel human and mouse studies that each had shown chemopreventive effects of dry
bean consumption on colorectal neoplasia risk.
METHODS and RESULTS: Using LC/mass spectroscopy ± ESI and GC/mass spectroscopy, serum
metabolites of dry beans were measured in 46 men before and after a 4-week dry bean enriched
diet (250 g/day) and 12 mice that received a standardized diet containing either 0 or 10%
navy bean ethanol extract for 6 weeks; we also investigated fecal metabolites in the mice. The
serum metabolites identified in these controlled feeding studies were then investigated in
212 polyp-free participants from the Polyp Prevention Trial who self-reported either increased
(≥+31 g/day from baseline), high dry bean intake of ≥42 g/day in year 3 or low, unchanged dry
bean consumption of <8 g/day; serum was analyzed from baseline and year 3. Serum pipecolic
acid and S-methyl cysteine were elevated after dry bean consumption in human and mouse
studies and reflected dry bean consumption in the Polyp Prevention Trial.
CONCLUSION: Serum levels of pipecolic acid and S-methyl cysteine are useful biomarkers of dry
bean consumption.
Genre Article
Topic Biomarkers
Identifier Perera, T., Young, M. R., Zhang, Z., Murphy, G., Colburn, N. H., Lanza, E., ... & Bobe, G. (2015). Identification and monitoring of metabolite markers of dry bean consumption in parallel human and mouse studies. Molecular Nutrition & Food Research, 59(4), 795-806. doi:10.1002/mnfr.201400847

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