Effects of Low- or High-glycemic Index Diets on Metabolic and Inflammatory Responses in Diabetics

March 3, 2015 updated by: Dr Junia Maria Geraldo Gomes, Federal University of Vicosa

Effects of Low- or High-glycemic Index Diets in Metabolic and Inflammatory Responses in Type 2 Diabetics

Background/Aims: Verify the effects of glycemic index (GI) on body composition, and on inflammatory and metabolic markers concentrations. Methods: Eighteen type 2 diabetics, (aged 42.4 + 5.1 years, BMI 29.2 + 4.8 kg.m-2) were randomly allocated to low GI (LGI) or high GI (HGI) groups. High or low GI meals were provided in the laboratory twice a day during 30 consecutive days. The other meals were consumed under free living condition and subjects were instructed to select foods presenting GI values corresponding to the allocated group. Body composition (body mass index, body fat percentage, waist circumference and waist-hip ratio), and inflammatory markers concentrations (interleukin-6, tumor necrosis factor-alpha, high molecular weight adiponectin, ultra-sensitive C-reactive protein and fibrinogen) and metabolic markers (glucose, insulin, total cholesterol, HDL cholesterol, free fatty acids, triglycerides and fructosamine) were assessed at baseline and after intervention. Food intake was monitored during the study. The criterion for statistical significance was P<0.05.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

18

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

  • Brazil
    • Minas Gerais
      • Vicosa, Minas Gerais, Brazil, 36570-000
        • Metabolism and body composition laboratory, Federal University of Vicosa

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

20 years to 40 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Type 2 diabetes mellitus
  • Level of physical activity light to moderate
  • Use of sulfonylureas or biguanides oral hypoglycemic drugs
  • Stable medications for the previous 3 months

Exclusion Criteria:

  • Cardiovascular, renal, or liver disease
  • Treatment for cancer
  • Smokers
  • Daily consumption of > 50g/day of alcohol
  • Pregnant, lactating, postmenopausal women,
  • Hormone replacement therapy
  • Recent change (last three months) in the level of physical activity or diet
  • Weight instability (> 3 kg in the previous three months),
  • Therapeutic diet
  • Allergies, test foods intolerance
  • Use of drugs affecting body metabolism and/or food intake.

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: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Low-GI diet
Low glycemic index diet
Dietary supplement: Low GI index diet
Low glycemic index diet
Experimental: High-GI diet
High glycemic index diet
Dietary supplement: High GI diet
High glycemic index diet

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Body fat content determined by tetrapolar bioelectrical impedance .
Time Frame: 30 days
30 days

Collaborators and Investigators

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

Sponsor

Federal University of Vicosa

Collaborators

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior.
Fundação de Amparo à Pesquisa do estado de Minas Gerais

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

March 1, 2007

Primary Completion (Actual)

March 1, 2007

Study Completion (Actual)

December 1, 2007

Study Registration Dates

First Submitted

February 26, 2015

First Submitted That Met QC Criteria

March 3, 2015

First Posted (Estimate)

March 9, 2015

Study Record Updates

Last Update Posted (Estimate)

March 9, 2015

Last Update Submitted That Met QC Criteria

March 3, 2015

Last Verified

March 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 40501156099

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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