Gene Expression Profiling and Bioinformatic Analysis Identifying Genes and Biochemical Pathways in Type 2 Diabetes

June 11, 2008 updated by: Odense University Hospital

Gene Expression Profiling by DNA Chips and Subsequent Bioinformatic Analysis for Identification of Genes and Biochemical Pathways Associated With Type 2 Diabetes

Type 2 diabetes is a disorder of the metabolic system that greatly affects individual health and imposes significant cost for society on health care. It is necessary to initiate research with emphasis on improvement on quality of life and reduce the serious complications as a result of type 2 diabetes.

In type 2 diabetes insulin resistance and impairment of insulin secretion by beta-cells are the major pathophysiological defects and characterized by raised plasma glucose levels. Today, little is known about gene regulation and biochemical pathways involved in the disease.

Bioinformatics and gene expression microarrays (GEM) will be applied to gain insight into the molecular pathophysiology of type 2 diabetes. The simultaneous monitoring of thousands of genes in parallel can identify novel genes and entire biochemical pathways that are dysregulated at the transcriptional level. Affymetrix Inc. chips or spotted arrays will be applied as DNA microarray tools. Bioinformatic software programs and databases will be employed as data mining tools in order to perform statistical analysis, cluster analysis and biochemical pathway analysis.

Biopsies from skeletal muscle and adipose tissue from both diabetics and nondiabetics will be applied. Changes in genes and biochemical pathways between diabetics and nondiabetics and functional relationships between adipose tissue and skeletal muscle will be investigated.

Grouping of subtypes in type 2 diabetes will be performed and a classification system will be constructed. Building a classifier may provide better and more precise diagnosis of type 2 diabetes.

Major advances in health science of type 2 diabetes thus seems to be promising and paving the way for individual treatment based on a more precise diagnosis.

Study Overview

Status

Unknown

Conditions

Study Type

Observational

Enrollment (Anticipated)

100

Contacts and Locations

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

Study Contact

Study Locations

  • Denmark
    • Funen
      • Odense C, Funen, Denmark, 5000
        • Recruiting
        • Department of Clinical Biochemistry and Genetics, KKA
        • Contact:

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

30 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

Of diabetic subjects:

  • Type 2 diabetes
  • Age: 30-65 years
  • BMI: 27-35

Of nondiabetic subjects:

  • Age: 30-65 years
  • BMI: 27-35

Exclusion Criteria:

Of diabetic subjects:

  • Medication, which have any influence on glucose metabolism and gene expression in adipose tissue and skeletal muscle at the time of sampling of biopsies.
  • Disease in liver, heart, vessels or endocrine organs

Of nondiabetic subjects:

  • Type 2 diabetes
  • Relatives with type 2 diabetes
  • Hyperglycemia
  • Medication, which have any influence on glucose metabolism and gene expression in adipose tissue and skeletal muscle at the time of sampling of biopsies.
  • Disease in liver, heart, vessels or endocrine organs

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

Collaborators and Investigators

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

Sponsor

Odense University Hospital

Investigators

  • Principal Investigator: Vibe Skov, MSc, Odense University Hospital

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, 2007

Study Registration Dates

First Submitted

September 1, 2005

First Submitted That Met QC Criteria

September 1, 2005

First Posted (Estimate)

September 2, 2005

Study Record Updates

Last Update Posted (Estimate)

June 12, 2008

Last Update Submitted That Met QC Criteria

June 11, 2008

Last Verified

June 1, 2008

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 002 (University of CT Health Center)

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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