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Researchers explain why some wound infections become chronic
Date:12/17/2013

t enzymes, glutathione peroxidase and catalase. Ordinarily, these enzymes help maintain normal tissue levels of ROS. But when they were inhibited, the amount of ROS in the wounds soared and the biofilm strengthened. The scientists also found that the two antioxidant enzymes were more damaging if they were inhibited in combination rather than individually.

Next, to decrease ROS to normal levels, the researchers applied two strong antioxidant supplements, vitamin E and N-Acetyl cysteine. As a result, the activities of the antioxidant enzymes glutathione peroxidase and catalase were restored, ROS levels decreased, and the bacterial biofilm disintegrated in the wound all of which resulted in the development of healthier wound tissue and led to wound healing.

"Our results show for the first time that by deliberately modulating specific parameters, we can create chronic wounds and then reverse chronicity by antioxidant treatment," Martins-Green said. "These findings should help in unraveling the mechanisms underlying the development of chronic wounds and hence in identifying potential targets for treatment of these wounds in humans."


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Contact: Iqbal Pittalwala
iqbal@ucr.edu
951-827-6050
University of California - Riverside
Source:Eurekalert  

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