Bioavailability and Metabolism of Anthocyanins Following Acute Cranberry Consumption
This study hypothesis is that anthocyanins from cranberry juice are bioavailable and can be measured in blood and urine after a single acute consumption of cranberry juice.
|Study Design:||Observational Model: Cohort|
|Official Title:||Bioavailability and Metabolism of Anthocyanins Following Acute Cranberry (Vaccinium Macrocarpon)Consumption|
- Anthocyanin levels in plasma and urine [ Time Frame: 0, 2, and 4 hours ] [ Designated as safety issue: No ]
|Study Start Date:||June 2007|
|Study Completion Date:||April 2008|
|Primary Completion Date:||April 2008 (Final data collection date for primary outcome measure)|
Cranberry Juice Consumption
Dietary Supplement: Experimental
Administration of of 480 mL cranberry juice
Other Name: Cranberry Juice
Little is known about the acute or chronic pharmacokinetics and metabolism of anthocyanins consumed in amounts relevant to usual dietary intakes. Thus, we hypothesize that anthocyanins from a single oral dose of cranberry juice will be absorbed quickly and can be measured in the circulation and urine within 2-4 h. Further, these anthocyanins will undergo a degree of metabolism but will circulate as well as be removed from blood as both parent compounds and metabolic products.
This research proposal is submitted as an independent sub-study of an existing project, "Effects of Cranberry Juice on Endothelial Function in Patients with Coronary Artery Disease", conducted by Joseph A. Vita, MD at the Boston University School of Medicine and sponsored by Ocean Spray Cranberries, Inc.
This study includes 15 subjects aged 21-80 y and with demonstrated endothelial dysfunction and angiographically proven coronary artery disease who will receive a single dose of 480 mL cranberry juice.
To test the hypotheses of the study to be conducted at HNRCA Tufts, we will utilize blood and urine samples that are already collected and stored. We will separate and analyze anthocyanins in these samples by HPLC and determine the pharmacokinetics of relevant anthocyanins.
|United States, Massachusetts|
|Jean Mayer USDA Human Nutrition Center on Aging at Tufts University|
|Boston, Massachusetts, United States, 02111|
|Principal Investigator:||Paul E. Milbury, Ph.D.||Tufts University|