A new histological score grade for deep partial-thickness burn wound healing process

Area of Science:

• Wound Healing Research
• Dermatology
• Histopathology

Background:

• Burns are classified by depth, impacting tissue damage and healing.
• Histological analysis is crucial for understanding burn wound healing.
• A systematic evaluation system is needed for burn research.

Purpose of the Study:

• To establish a comprehensive system for assessing microscopic changes in deep partial-thickness burn wound healing.
• To simplify the scoring process for histological analysis of burn wounds.
• To obtain reproducible and accurate results in burn studies.

Main Methods:

• Thirty Sprague-Dawley rats were used, divided into five groups.
• Deep partial-thickness burns were induced, with sacrifice on days 3, 7, 11, 14, and 21.
• Wound tissues were stained with hematoxylin & eosin for histological evaluation of epidermis and dermis.

Main Results:

• A scoring system (0-7) was developed for epidermal healing (crust, epithelialization, rete ridges).
• A scoring system (0-7) was developed for dermal healing (cell proportions, collagen, hair follicles).
• Temporal changes in histological scores for epidermis and dermis were evaluated.

Conclusions:

• A new comprehensive system for assessing microscopic changes in deep partial-thickness burn wound healing was established.
• The system simplifies scoring and aids in obtaining reproducible and accurate results.
• This histological evaluation system is valuable for burn research.