Effects of (1,3), (1,6)-Beta-D-glucan on Insulin Sensitivity and Inflammatory Markers of the Metabolic Syndrome

August 1, 2013 updated by: Weickert, Martin O., German Institute of Human Nutrition

Insoluble (1,3),(1,6)-beta-D-glucan from bakers yeast are indigestible polysaccharides. Previous studies indicate that the intake of insoluble dietary fiber is strongly associated with reduced risk of type 2 diabetes and cardiovascular disease. However, the mechanisms leading to this phenomenon are largely unknown.

There are close relations between metabolic and inflammatory pathways, and a number of hormones, cytokines, signal proteins, bioactive lipids, and transcription factors have been shown to be involved in both systems.

Beta-D-glucans have been suggested to play a role as so called biological response modifiers. Studies in animals indicate that even small doses of (1,3),(1,6)-beta-D-glucan may have beneficial effects on immune activity, i.e., by reducing the secretion of inflammatory factors.

The investigators hypothesize that the intake of isolated (1,3), (1,6)-beta-D-glucan from bakers yeast improves inflammatory makers and insulin-sensitivity in overweight subjects with increased C-reactive protein concentrations at baseline.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

11

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

  • Germany
      • Nuthetal, Germany, 14558
        • German Institute of Human Nutrition, Department of Clinical Nutrition, Potsdam-Rehbrücke

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 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy subjects with normal glucose tolerance (NGT)
  • Impaired glucose tolerance (IGT)
  • Impaired fasting glucose (IFG)

Exclusion Criteria:

  • Any severe cardiac disease
  • Liver
  • Kidney diseases
  • Type 1 or type 2 diabetes
  • Chronical and acute inflammatory diseases
  • Lipid lowering drugs
  • Cortisone
  • Antibiotics
  • Non-steroidal antiinflammatory drugs
  • Including low dose acetylsalicylic acid

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: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: x
capsules containing beta glycan
Dietary supplement: Beta-D-Glucan
1,5 g Beta-D-Glucan daily
Placebo Comparator: y
capsules containing placebo (waxy maize starch)
Dietary supplement: placebo
1.5 g waxy maize starch daily

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Beta-D-glucan induced changes in inflammatory markers, adipokines, and gut hormones. Changes in insulin-sensitivity.
Time Frame: 3 days
3 days

Secondary Outcome Measures

Outcome Measure
Time Frame
Altered gene expression in adipose tissue if changes in primary outcome measures are shown.
Time Frame: 3 days
3 days

Collaborators and Investigators

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

Sponsor

German Institute of Human Nutrition

Collaborators

Danone Research Foundation
Leiber Company

Investigators

  • Principal Investigator: Martin O Weickert, MD, German Institute of Human Nutrition
  • Study Chair: Andreas FH Pfeiffer, Prof, German Institute of Human Nutrition

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

Helpful Links

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

November 1, 2006

Primary Completion (Actual)

March 1, 2008

Study Completion (Actual)

March 1, 2008

Study Registration Dates

First Submitted

November 24, 2006

First Submitted That Met QC Criteria

November 24, 2006

First Posted (Estimate)

November 27, 2006

Study Record Updates

Last Update Posted (Estimate)

August 5, 2013

Last Update Submitted That Met QC Criteria

August 1, 2013

Last Verified

August 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MOW_bGlucan

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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