The Effect of Glutamine on Systemic Inflammation During Human Experimental Endotoxemia

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: NCT00780520
Recruitment Status : Completed
First Posted : October 27, 2008
Last Update Posted : October 27, 2008
Information provided by:
Rigshospitalet, Denmark

Brief Summary:

Glutamine levels decrease during severe sepsis; this may be associated with increased mortality. The investigators tested the effects of glutamine supplementation on systemic inflammation in a human sepsis model.

The investigators found that glutamine levels drops significantly during experimentally induced systemic inflammation. However, glutamine did not affect the degree of inflammation.

Condition or disease Intervention/treatment Phase
Sepsis Systemic Inflammation Dietary Supplement: alanine-glutamine infusion Not Applicable

Detailed Description:

Glutamine levels have been shown to decrease substantially with severe sepsis and this has been connected with increased mortality. Therefore, in the present study, we infused either saline or Alanine-glutamine during an endotoxin challenge and measured parameters related to an immune response, i.e. plasma cytokines and Heat Shock Protein (HSP)-70.

Materials and Methods This was a double blind, randomised, placebo-controlled crossover trial in eight healthy young men. The study was performed in random order on two separate days, with a four-week washout period between days. Subjects received an infusion of Alanine-glutamine ( Dipeptiven) at a rate of 0.025 g / (kg BW * h) for 10 hrs or saline. After two hours of infusion subjects received an intravenous bolus of E. coli endotoxin (0.3 ng/kg). Blood samples were collected hourly for the following eight hours. HSP-70 protein content in isolated Blood Mononuclear Cells (BMNCs) was measured by western blotting.

Results and Discussion Plasma glutamine was significantly increased during infusion with alanine-glutamine infusion. En-dotoxin caused a reduction in plasma-glutamine during saline infusion as well as during Alanine-glutamine infusion. A significant effect of endotoxin was found on leukocyte subpopulations, tumor necrosis factor-a, interleukin-6, the expression of HSP-70 in BMNCs, temperature, and heart rate. However, no differences were detected between treatments with regard to the effect of endotoxin on any of these parameters.

Conclusion Endotoxemia reduces plasma glutamine independently of parenteral infusion of alanine-glutamine. Glutamine does not alter the response of leukocytes, leukocyte subpopulations, IL-6, or TNF-α, or the expression of HSP-70 in BMNCs to endotoxemia.

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 8 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Basic Science
Official Title: The Effect of Glutamine Infusion on the Inflammatory Response and HSP-70 in BMNCs During Human Experimental
Study Start Date : June 2007
Actual Primary Completion Date : October 2007
Actual Study Completion Date : October 2007

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Sepsis

Arm Intervention/treatment
Experimental: 1 Dietary Supplement: alanine-glutamine infusion
Placebo Comparator: 2 Dietary Supplement: alanine-glutamine infusion

Primary Outcome Measures :
  1. Plasma-levels of cytokines

Secondary Outcome Measures :
  1. Heat shock protein -70 production from BMNCs

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 40 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Healthy young males

Exclusion Criteria:

  • Any kind of acute or chronic diseases

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): NCT00780520

Centre of Inflammation and Metabolism, Rigshospitalet
Copenhagen, Denmark, DK-2100
Sponsors and Collaborators
Rigshospitalet, Denmark

Publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00780520     History of Changes
Other Study ID Numbers: H-KF-01-144/98
First Posted: October 27, 2008    Key Record Dates
Last Update Posted: October 27, 2008
Last Verified: October 2008

Keywords provided by Rigshospitalet, Denmark:
glutamine inflammation HSP70 sepsis

Additional relevant MeSH terms:
Pathologic Processes
Systemic Inflammatory Response Syndrome