Chronic Effects of Freeze-Dried Strawberry Beverage on Cardiovascular Risk Factors

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-04-30

Study Completion Date

2013-03-31

Brief Summary

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Berry anthocyanins have been shown to improve lipid profile in subjects with dyslipidemia while no such studies with whole strawberries have been reported in the US population. The investigators propose to examine the effects of low and high doses of freeze-dried strawberries on serum glucose, insulin, and lipid profile, biomarkers of oxidative stress and inflammation, in a 12-week randomized controlled trial. Subjects with abdominal adiposity and dyslipidemia (n=15/group) will be recruited at OUHSC and OSU, and randomly assigned to the low (25g/day) or high (50g/day) strawberry dose, or matched control (fiber and calories) group. The strawberry group will consume freeze-dried strawberry beverage (2 cups/day) and the controls will consume 2 cups beverage (fiber +calories) daily for 12 weeks. Blood draws, anthropometrics, blood pressure, and dietary data will be collected at screen, 6 and 12 weeks of the study to determine chronic and acute effects of strawberry intervention. Serum or plasma samples will be analyzed for fasting glucose, insulin, lipid profile including total cholesterol, LDL-, and HDL-cholesterol, triglycerides, lipid particle size, and levels of oxidative stress (malondialdehyde, oxidized LDL, myeloperoxidase), inflammation (high sensitivity C-reactive protein, adiponectin, interleukins) and adhesion molecules. Repeated measures ANOVA will be performed using a 5% significance level. We anticipate a dose response effect in decrease in lipids, oxidative stress or inflammation following strawberry intervention versus controls.

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Detailed Description

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The overall objective of this clinical trial is to investigate the effects of low and high doses of freeze-dried strawberries in cardiovascular risk factors in subjects with abdominal adiposity and dyslipidemia versus age and gender-matched controls.

Conditions

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Dyslipidemia Obesity

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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