Grape Polyphenol Kinetics in Humans

The objectives of this study are the following: 1) to confirm that the administration of grape juice, resveratrol, and grape seed polyphenol extract results in a similar plasma and urinary metabolic profile in aged humans compared to rats, 2) to confirm that a combined administration of grape juice, resveratrol, and grape seed polyphenol extract result in a similar plasma and urinary metabolic profile in adults with tendencies toward metabolic syndrome compared to non-obese healthy humans, and 3) to identify the anti-inflammatory effects of the combined administration of grape juice, resveratrol, and grape seed polyphenol extract.

Study Overview

• Status: Completed
• Conditions: Healthy Volunteers
• Intervention / Treatment: Other: Grape

• Study Type: Interventional
• Enrollment (Actual): 16
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Maryland
    • Beltsville, Maryland, United States, 20705
      • USDA Beltsville Human Nutrition Research Center

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: No older than 59 years (Child, Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

-

Exclusion Criteria:

• Age <60 years at beginning of study
• Fasting glucose > 126 mg/dl
• Blood pressure > 160/100
• Fasting total blood cholesterol > 280 mg/dl
• Fasting triglycerides > 300 mg/dl
• Presence of kidney disease, liver disease, gout, hyperthyroidism, untreated or unstable hypothyroidism, certain cancers, gastrointestinal disease, pancreatic disease, other metabolic diseases, or malabsorption syndromes
• Presence of type 2 diabetes requiring the use of oral antidiabetic agents or insulin
• History of bariatric or certain other surgeries related to weight control
• Smokers or other tobacco users (during 6 months prior to the start of the study)
• Consumption of more than 3 servings of tea, wine, or grape juice per day
• Use of supplements containing grape extracts or products
• Use of antibiotics during the intervention or for 3 weeks prior to the intervention period
• History of eating disorders, dietary patterns, or supplement use which will interfere with the goal of the intervention
• Volunteers who have lost 10% of body weight within the last 4 months
• Volunteers who are unable or unwilling to give informed consent or communicate with study staff
• Volunteers who self-report of alcohol or substance abuse within the past 12 months and/or current acute treatment or rehabilitation program for these problems (long-term participation in Alcoholics Anonymous is not an exclusion)
• Other medical, psychiatric, or behavioral factors that in the judgment of the Principal Investigator may interfere with study participation or the ability to follow the intervention protocol

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Other: Grape	Other: Grape; 16 oz. of Concord grape juice (8 oz. consumed 2 times per day; total dose of approximately 1.2 g phenolic compounds per day), 250 mg resveratrol provided as a capsule (commercially available supplement; 125 mg consumed 2 times per day), and 1 g grape seed polyphenol extract provided as a capsule (commercially available supplement; 0.5 g consumed 2 times per day).

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Plasma polyphenols	Blood will be analyzed for polyphenols and polyphenol metabolites.	6 hours
Urinary polyphenols	Urine will be analyzed for polyphenols and polyphenol metabolites.	6 hours

Collaborators and Investigators

• Sponsor: Janet Novotny
• Investigators: Principal Investigator: Janet Novotny, Ph.D., USDA Beltsville Human Nutrition Research Center

Publications and helpful links

General Publications

• Novotny JA, Chen TY, Terekhov AI, Gebauer SK, Baer DJ, Ho L, Pasinetti GM, Ferruzzi MG. The effect of obesity and repeated exposure on pharmacokinetic response to grape polyphenols in humans. Mol Nutr Food Res. 2017 Nov;61(11):10.1002/mnfr.201700043. doi: 10.1002/mnfr.201700043. Epub 2017 Aug 29.

Study record dates

Study Major Dates

• Study Start: September 1, 2011
• Primary Completion (Actual): September 1, 2011
• Study Completion (Actual): September 1, 2011

Study Registration Dates

• First Submitted: December 10, 2012
• First Submitted That Met QC Criteria: December 13, 2012
• First Posted (Estimate): December 18, 2012

Study Record Updates

• Last Update Posted (Actual): May 25, 2017
• Last Update Submitted That Met QC Criteria: May 23, 2017
• Last Verified: May 1, 2017

More Information

Terms related to this study

• Other Study ID Numbers: HS38

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO