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Study of Gene Activity in Fat and Muscle in Diabetics and Healthy Controls

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00412906
Recruitment Status : Completed
First Posted : December 19, 2006
Last Update Posted : May 21, 2008
Information provided by:
Rigshospitalet, Denmark

Brief Summary:
The aim of the present protocol is to study gene activity in fat and muscle tissue in type 2 diabetics and healthy volunteers after injection of E. coli endotoxin.We hereby hope to gain insight in some mechanisms behind the association between inflammation and insulin resistance.

Condition or disease Intervention/treatment Phase
Healthy Type 2 Diabetes Endotoxemia Drug: Escherichia Coli Endotoxin Not Applicable

Detailed Description:

Numerous studies have shown an association between low-grade inflammation and insulin-resistance in type 2 diabetics. It is also well-known that septic patients often develop insulin-resistance. The pathogenetic mechanisms behind the association between inflammation and insulin-resistance is not fully understood.

In this study we create an experimental inflammation by giving E. coli endotoxin 0,3 ng/kg iv to type 2 diabetics and healthy controls. Muscle biopsies are taken at 0, 2, 4 and 6 hours after injection, while fat biopsies are taken 0, 2, 4, 6 and 8 hours after endotoxin. mRNA for adiponectin, leptin, PPAR-gamma, PGC-1, PAI-1 and cytokines in tissue is later measured by RT-PCR.

Blood samples are drawn on an hourly basis until 8 hours after endotoxin injection for common biochemical analyses including white blood cell count. Plasma is spared and later analyzed for cytokines, PAI-1 and VCAM-1/ICAM-1.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 48 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Study of Gene Expression in Fat and Muscle Tissue in Type 2 Diabetics and Healthy Controls During Experimental Endotoxemia
Study Start Date : November 2006
Actual Primary Completion Date : April 2008
Actual Study Completion Date : April 2008

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Gene expression evaluated by measuring mRNA via RT-PCR. Plasma cytokine content, PLasma PAI-1 content, endotoxemia score

Secondary Outcome Measures :
  1. Mean Arterial Pressure, heart rate, Temperature,

Information from the National Library of Medicine

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Ages Eligible for Study:   25 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Healthy
  • Type 2 diabetes

Exclusion Criteria:

  • Heart failure
  • Lung disease
  • Anti-coagulation treatment

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00412906

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Centre of Inflammaiton and Metabolism, Rigshospitalet
Copenhagen, Denmark, 2100
Sponsors and Collaborators
Rigshospitalet, Denmark
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Principal Investigator: Anne Sofie Andreasen, MD Rogshospitalet, Denmark

Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Centre of Inflammation and Metabolism, Rigshospitalet Identifier: NCT00412906     History of Changes
Other Study ID Numbers:
First Posted: December 19, 2006    Key Record Dates
Last Update Posted: May 21, 2008
Last Verified: May 2008

Keywords provided by Rigshospitalet, Denmark:
Low-grade inflammation
insulin resistance
Type 2 diabetes
Fat tissue
Muscle tissue

Additional relevant MeSH terms:
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Diabetes Mellitus, Type 2
Diabetes Mellitus
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Systemic Inflammatory Response Syndrome
Pathologic Processes