The integrity of the skin should be restored as soon as possible whenever the skin gets wounded. Recent research has revealed some of the complex pathways in wound healing. Based on this knowledge, researchers have been looking for better skin substitutes to treat difficultly healing or large wounds. Some of these highly sophisticated wound dressings, also known as bio-dressings, contain material of human or animal origin, e.g. cultured skin cells. Although the ideal skin substitute has not been established yet, the currently available bio-dressings help clinicians close difficultly healing skin wounds.
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