Role of Autophagy Biomarkers In Burn-Age Estimation and Progression.

Area of Science:

• Forensic science
• Biomarker research
• Dermatology

Background:

• Determining the time since burn injury in living individuals is crucial for forensic investigations.
• Autophagy biomarkers and vitronectin show potential for assessing burn injury age based on tissue levels.

Purpose of the Study:

• To investigate the role of autophagy biomarkers in dating burn injuries.
• To correlate autophagy biomarker levels with histopathological changes in deep second-degree thermal burns.

Main Methods:

• Fifty-four male rats received deep second-degree thermal burns.
• Skin samples were collected at 30 minutes, 1, 4, 24, 48, and 72 hours post-burn.
• Histological examination and analysis of autophagy biomarkers and vitronectin levels were performed.

Main Results:

• Autophagy biomarkers significantly decreased within 24 hours post-burn, then gradually increased but remained below normal levels by 72 hours.
• Vitronectin levels increased up to four-fold within 4 hours post-burn before declining, yet did not return to normal by 72 hours.

Conclusions:

• Autophagy biomarkers show promise as a forensic tool for estimating the time elapsed since a burn injury in living individuals.
• The dynamic changes in autophagy biomarkers and vitronectin provide insights into the post-burn healing process.