The main purpose of this study is to determine the effect of consumption of purple wheat anthocyanin-rich products for eight weeks by human participants with an elevated level of chronic inflammation, on oxidative stress and inflammatory responses as measured by select plasma biomarkers.
This study will investigate the effect of daily consumption of purple wheat bran-enriched wholegrain convenience bars, for 8 weeks on inflammation and oxidative stress biomarkers and plasma antioxidant capacity. This study is a randomized, parallel arm study with 20 men and 20 women who will adhere to a low anthocyanin and low phenolic aid diet for the duration of the study. The participants will be randomly divided into two groups, using stratification for matching sex and screening hs-CRP level to be equally distributed in each group, and assigned to either the treatment group or control group. Both group will have a 10 day diet run-in period where consumption of foods rich in anthocyanins and phenolic acids will be limited. Both groups will consume 4 servings of wheat products per day for 8 weeks and will replace 4 grain servings from their typical daily intake with the study treatment products. Fasting blood samples will be collected during three study visits, including baseline, for the analysis of inflammatory and oxidative stress biomarkers and plasma antioxidant capacity. The plasma metabolites of anthocyanins and phenolic acids will also be determined.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Enrollment
32
Whole grain convenience bars manufactured with purple wheat
Whole grain convenience bars manufactured with ordinary wheat
Human Nutraceutical Research Unit, University of Guelph
Guelph, Ontario, Canada
Serum concentration of inflammatory biomarker (hs-CRP)
Time frame: Fasting (0 hours)
Plasma concentration of lipids
Time frame: Fasting (0 hours)
Plasma concentration of inflammatory biomarkers
Time frame: Fasting (0 hours)
Plasma concentration of total antioxidant capacity
Time frame: Fasting (0 hours)
Plasma concentrations of anthocyanin metabolites and phenolic acids
Time frame: Fasting (0 hours)
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