Study of Gene Activity in Fat and Muscle in Diabetics and Healthy Controls
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.
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.
Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Prevention
Escherichia Coli Endotoxin
Centre of Inflammaiton and Metabolism, Rigshospitalet
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00412906
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Enterohemorrhagic Escherichia Coli
Strains of ESCHERICHIA COLI that are a subgroup of SHIGA-TOXIGENIC ESCHERICHIA COLI. They cause non-bloody and bloody DIARRHEA; HEMOLYTIC UREMIC SYNDROME; and hemorrhagic COLITIS. An important member of this subgroup is ESCHERICHIA COLI O157-H7.
Escherichia Coli K12
A species of gram-negative, rod-shaped bacteria belonging to the K serogroup of ESCHERICHIA COLI. It lives as a harmless inhabitant of the human LARGE INTESTINE and is widely used in medical and GENETIC RESEARCH.
Escherichia Coli O157
A verocytotoxin-producing serogroup belonging to the O subfamily of Escherichia coli which has been shown to cause severe food-borne disease. A strain from this serogroup, serotype H7, which produces SHIGA TOXINS, has been linked to human disease outbreaks resulting from contamination of foods by E. coli O157 from bovine origin.
Escherichia Coli Vaccines
Vaccines or candidate vaccines used to prevent or treat both enterotoxigenic and enteropathogenic Escherichia coli infections.
Uropathogenic Escherichia Coli
Strains of Escherichia coli that preferentially grow and persist within the urinary tract. They exhibit certain virulence factors and strategies that cause urinary tract infections.
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