Effects of Red Wine and Cognac on Coronary Circulation

May 24, 2006 updated by: University of Turku
Red wine consumption is associated with reduced cardiovascular disease mortality, and the cardioprotective properties may be partly related to its ability to improve endothelial function. The purpose of this study was to determine whether moderate doses of red wine, de-alcoholized red wine and cognac improve coronary flow reserve.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Moderate consumption of red wine is associated with reduced coronary artery disease mortality. Cardioprotective effects of red wine may be partly related to its ability to improve endothelial function. Red wine increases endothelium-dependent flow-mediated dilatation of the brachial artery acutely after ingestion. Moreover, a heavy dose of red wine (ethanol 1.0 g/kg) has been shown to increase coronary flow reserve (CFR) as measured with transthoracic Doppler echocardiography. CFR depicts the relative increase of coronary blood flow in response to maximal myocardial hyperemia induced by adenosine. It is reduced in atherosclerosis and various conditions associated with the dysfunction of coronary microcirculation, such as diabetes and hypercholesterolemia.

Both ethanol and antioxidative polyphenols have been implicated in beneficial endothelial effects of red wine. However, their relative contributions remain uncertain in vivo. It has been suggested that red wine has stronger vasoactive properties than other alcohol beverages, and even de-alcoholized red wine may be sufficient to improve flow-mediated dilatation of the brachial artery. Cognac is also known to contain polyphenols, but its effects on coronary circulation have not been evaluated.

The purpose of this randomized controlled cross-over study was to determine with transthoracic echocardiography whether moderate doses of red wine improve CFR in response to adenosine in healthy humans. We also studied contributions of ethanol and antioxidants by comparing the effects of equal doses of alcoholic and de-alcoholized red wine, and cognac on the plasma antioxidant capacity and CFR.

Study Type

Interventional

Enrollment

25

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

  • Finland
      • Turku, Finland, FIN-20520
        • Dept. Clinical Physiology and Nuclear Medicine, Turku University Hospital

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

14 years to 66 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • healthy males

Exclusion Criteria:

  • smoking, medication of any kind

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Single

What is the study measuring?

Primary Outcome Measures

Outcome Measure
coronary flow reserve
plasma antioxidant capacity

Collaborators and Investigators

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

Sponsor

University of Turku

Collaborators

Tampere University

Investigators

  • Principal Investigator: Tuomas O Kiviniemi, MD, Dept. Clinical Physiology and Nuclear Medicine, Turku University Hospital

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

October 1, 2004

Study Completion

April 1, 2005

Study Registration Dates

First Submitted

May 24, 2006

First Submitted That Met QC Criteria

May 24, 2006

First Posted (Estimate)

May 26, 2006

Study Record Updates

Last Update Posted (Estimate)

May 26, 2006

Last Update Submitted That Met QC Criteria

May 24, 2006

Last Verified

September 1, 2004

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • KLF-RW-06

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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