Beetroot Enriched Bread, Blood Pressure and Vascular Function

October 12, 2012 updated by: Julie Lovegrove, University of Reading

The Effects of Beetroot Enriched Bread on Postprandial Vascular Function, Arterial Stiffness and Blood Pressure in Healthy Men

Dietary nitrate is known to lower blood pressure. Beetroot is a rich source of nitrate and could therefore be an important dietary component in the management of hypertension and cardiovascular disease, however consumption is relatively low. We evaluated the effects of beetroot enriched bread ingestion on acute microvascular reactivity, arterial stiffness and blood pressure response in healthy men.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

24

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
    • Berkshire
      • Reading, Berkshire, United Kingdom, RG6 6AP
        • University of Reading

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 64 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Male
  • A signed consent form
  • Age 18-64 years
  • Body mass index - 18.5-30 kg/m2
  • Non-smoking, healthy individuals
  • Normal blood pressure at screening (< 150/90)

Exclusion Criteria:

  • Subjects with anaemia
  • Sufferers of chronic illnesses
  • Individuals with food allergies
  • People with diabetes
  • People with coeliac disease
  • Women
  • Vegetarians

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Control white bread
Dietary supplement: Bread
Experimental: Beetroot bread
Dietary supplement: Bread

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Vascular reactivity
Time Frame: Change from baseline at 2, 4 and 6 hours after bread consumption
Forearm blood flow by Laser Doppler Imaging with iontophoresis
Change from baseline at 2, 4 and 6 hours after bread consumption

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Arterial stiffness
Time Frame: Change from baseline at 2, 4 and 6 hours after bread consumption
Pulse wave analysis (PWA) and velocity (PWV)
Change from baseline at 2, 4 and 6 hours after bread consumption
Blood pressure
Time Frame: Change from baseline at 30 minute intervals for 7 hours
By ambulatory blood pressure monitor
Change from baseline at 30 minute intervals for 7 hours
Plasma nitrate
Time Frame: Every 30 minutes for 7 hours
Every 30 minutes for 7 hours
Plasma nitrite
Time Frame: Every 30 minutes for 7 hours
Every 30 minutes for 7 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Reading

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2010

Primary Completion (Actual)

October 1, 2010

Study Completion (Actual)

October 1, 2010

Study Registration Dates

First Submitted

September 27, 2012

First Submitted That Met QC Criteria

October 12, 2012

First Posted (Estimate)

October 15, 2012

Study Record Updates

Last Update Posted (Estimate)

October 15, 2012

Last Update Submitted That Met QC Criteria

October 12, 2012

Last Verified

October 1, 2012

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 10/18
  • University of Reading (Other Identifier: Reading University)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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