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Study of Glutamate and Glutamine Metabolism in Burn Patients Receiving Enteral or Parenteral Nutrition

Burns Clinical Trial

Official title:
Study of Glutamate and Glutamine Metabolism in Burn Patients Receiving Enteral or Parenteral Nutrition

Clinical Trial Summary

The purpose of the study is to understand how the body uses amino acids in burned patients during the time they cannot eat normally. Amino acids occur naturally in the body and the food we eat. The body combines amino acids to make protein. It uses the proteins to do things such as heal wounds, fight infection, and provide energy. We are studying two ways of receiving nutrition: through a vein or through a tube. We are also studying two different types of food: with or without glutamine. The results of this study will be used to determine the best type and way to supply nutrients during a severe burn injury. We hope to learn how to help the body use nutrients more efficiently to better repair wounded tissues and recover earlier from injury.

Clinical Trial Description

We hypothesize that:

1. Burn patients will experience an increased conversion of glutamine to glutamate and a decreased conversion of glutamate to glutamine as compared to healthy subjects. The net direction is from glutamine to glutamate in burn patients and would render glutamine as a conditionally essential amino acid.

2. Because of the limited ability of liver to oxidize glutamate, it is possible that large doses of glutamine may cause increased gluconeogenesis in burn patients, thus aggravating the glucose homeostasis secondary to insulin resistance.

3. Enterally and parenterally fed glutamine and glutamate have different metabolic fate in the splanchnic bed and peripheral regions, therefore the doses should be tailored according to the route of administration.

This study, using stable isotope tracers, aims to track the metabolic fate of glutamine and glutamate in body with the goal of enhancing nutritional efficiency. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00181753
Study type Interventional
Source National Institute of General Medical Sciences (NIGMS)
Contact
Status Withdrawn
Phase N/A
Start date November 2009
Completion date October 2010
View Details
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