Development of Metabolic Indicators of Burn Injury: Very Low Density Lipoprotein (VLDL) and Acetoacetate Are Highly Correlated to Severity of Burn Injury in Rats

Hypermetabolism is a significant sequela to severe trauma such as burns, as well as critical illnesses such as cancer. It persists in parallel to, or beyond, the original pathology for many months as an often-fatal comorbidity. Currently, diagnosis is based solely on clinical observations of increas...

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Main Authors: Maria-Louisa Izamis, Korkut Uygun, Nripen S. Sharma, Basak Uygun, Martin L. Yarmush, Francois Berthiaume
Format: Article
Language:English
Published: MDPI AG 2012-07-01
Series:Metabolites
Subjects:
Online Access:http://www.mdpi.com/2218-1989/2/3/458
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author Maria-Louisa Izamis
Korkut Uygun
Nripen S. Sharma
Basak Uygun
Martin L. Yarmush
Francois Berthiaume
author_facet Maria-Louisa Izamis
Korkut Uygun
Nripen S. Sharma
Basak Uygun
Martin L. Yarmush
Francois Berthiaume
author_sort Maria-Louisa Izamis
collection DOAJ
description Hypermetabolism is a significant sequela to severe trauma such as burns, as well as critical illnesses such as cancer. It persists in parallel to, or beyond, the original pathology for many months as an often-fatal comorbidity. Currently, diagnosis is based solely on clinical observations of increased energy expenditure, severe muscle wasting and progressive organ dysfunction. In order to identify the minimum number of necessary variables, and to develop a rat model of burn injury-induced hypermetabolism, we utilized data mining approaches to identify the metabolic variables that strongly correlate to the severity of injury. A clustering-based algorithm was introduced into a regression model of the extent of burn injury. As a result, a neural network model which employs VLDL and acetoacetate levels was demonstrated to predict the extent of burn injury with 88% accuracy in the rat model. The physiological importance of the identified variables in the context of hypermetabolism, and necessary steps in extension of this preliminary model to a clinically utilizable index of severity of burn injury are outlined.
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spelling doaj.art-3a2230c80ae647e58c11c6f0cec6aef92022-12-22T01:47:47ZengMDPI AGMetabolites2218-19892012-07-012345847810.3390/metabo2030458Development of Metabolic Indicators of Burn Injury: Very Low Density Lipoprotein (VLDL) and Acetoacetate Are Highly Correlated to Severity of Burn Injury in RatsMaria-Louisa IzamisKorkut UygunNripen S. SharmaBasak UygunMartin L. YarmushFrancois BerthiaumeHypermetabolism is a significant sequela to severe trauma such as burns, as well as critical illnesses such as cancer. It persists in parallel to, or beyond, the original pathology for many months as an often-fatal comorbidity. Currently, diagnosis is based solely on clinical observations of increased energy expenditure, severe muscle wasting and progressive organ dysfunction. In order to identify the minimum number of necessary variables, and to develop a rat model of burn injury-induced hypermetabolism, we utilized data mining approaches to identify the metabolic variables that strongly correlate to the severity of injury. A clustering-based algorithm was introduced into a regression model of the extent of burn injury. As a result, a neural network model which employs VLDL and acetoacetate levels was demonstrated to predict the extent of burn injury with 88% accuracy in the rat model. The physiological importance of the identified variables in the context of hypermetabolism, and necessary steps in extension of this preliminary model to a clinically utilizable index of severity of burn injury are outlined.http://www.mdpi.com/2218-1989/2/3/458hypermetabolismmetabonomicsflux analysiscluster analysisregressionvariable selectionburn injury
spellingShingle Maria-Louisa Izamis
Korkut Uygun
Nripen S. Sharma
Basak Uygun
Martin L. Yarmush
Francois Berthiaume
Development of Metabolic Indicators of Burn Injury: Very Low Density Lipoprotein (VLDL) and Acetoacetate Are Highly Correlated to Severity of Burn Injury in Rats
Metabolites
hypermetabolism
metabonomics
flux analysis
cluster analysis
regression
variable selection
burn injury
title Development of Metabolic Indicators of Burn Injury: Very Low Density Lipoprotein (VLDL) and Acetoacetate Are Highly Correlated to Severity of Burn Injury in Rats
title_full Development of Metabolic Indicators of Burn Injury: Very Low Density Lipoprotein (VLDL) and Acetoacetate Are Highly Correlated to Severity of Burn Injury in Rats
title_fullStr Development of Metabolic Indicators of Burn Injury: Very Low Density Lipoprotein (VLDL) and Acetoacetate Are Highly Correlated to Severity of Burn Injury in Rats
title_full_unstemmed Development of Metabolic Indicators of Burn Injury: Very Low Density Lipoprotein (VLDL) and Acetoacetate Are Highly Correlated to Severity of Burn Injury in Rats
title_short Development of Metabolic Indicators of Burn Injury: Very Low Density Lipoprotein (VLDL) and Acetoacetate Are Highly Correlated to Severity of Burn Injury in Rats
title_sort development of metabolic indicators of burn injury very low density lipoprotein vldl and acetoacetate are highly correlated to severity of burn injury in rats
topic hypermetabolism
metabonomics
flux analysis
cluster analysis
regression
variable selection
burn injury
url http://www.mdpi.com/2218-1989/2/3/458
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