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Reactive oxygen radical levels in caustic esophageal burns
E Günel1, F Cağlayan, O Cağlayan
1Department of Pediatric Surgery, Medical School of Selçuk University, Konya, Turkey.
Journal of Pediatric Surgery
|April 22, 1999
Summary
Reactive oxygen radicals increase tissue damage in caustic esophageal burns. This study measured malondialdehyde and glutathione levels in rats, finding elevated radicals in injured esophageal tissue.
Area of Science:
- Biochemistry
- Gastroenterology
- Toxicology
Background:
- Caustic esophageal burns are a severe injury.
- The role of oxidative stress in burn pathogenesis is not fully understood.
Purpose of the Study:
- To investigate the role of reactive oxygen species in caustic esophageal burns.
- To quantify tissue levels of malondialdehyde (MDA) and glutathione (GSH) in a rat model.
Main Methods:
- Forty rats were divided into control and three experimental groups.
- Esophageal burns were induced using sodium hydroxide.
- Tissue MDA and GSH levels were measured at 24, 48, and 72 hours post-injury.
Main Results:
- Malondialdehyde (MDA) levels were significantly elevated in burned esophageal tissue compared to controls.
- Glutathione (GSH) levels were significantly decreased in burned esophageal tissue at 48 and 72 hours post-injury.
Conclusions:
- Reactive oxygen radicals play a significant role in the early stages of caustic esophageal burn injury.
- Increased oxidative stress contributes to tissue damage in these burns.