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

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: December 19, 2006
Last Update Posted: May 21, 2008
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.
Information provided by:
Rigshospitalet, Denmark
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 Intervention
Healthy Type 2 Diabetes Endotoxemia Drug: Escherichia Coli Endotoxin

Study Type: Interventional
Study Design: 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

Resource links provided by NLM:

Further study details as provided by Rigshospitalet, Denmark:

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

Secondary Outcome Measures:
  • Mean Arterial Pressure, heart rate, Temperature,

Estimated Enrollment: 48
Study Start Date: November 2006
Study Completion Date: April 2008
Primary Completion Date: April 2008 (Final data collection date for primary outcome measure)
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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Ages Eligible for Study:   25 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Healthy
  • Type 2 diabetes

Exclusion Criteria:

  • Heart failure
  • Lung disease
  • Anti-coagulation treatment
  Contacts and Locations
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 ClinicalTrials.gov identifier (NCT number): NCT00412906

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

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Centre of Inflammation and Metabolism, Rigshospitalet
ClinicalTrials.gov Identifier: NCT00412906     History of Changes
Other Study ID Numbers: DM2.sa.cim.rh.dk
First Submitted: December 18, 2006
First Posted: December 19, 2006
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:
Diabetes Mellitus, Type 2
Diabetes Mellitus
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases
Systemic Inflammatory Response Syndrome
Pathologic Processes